0xB3 00 linux/mmc/ioctl.h
0xC0 00-0F linux/usb/iowarrior.h
0xCA 00-0F uapi/misc/cxl.h
+0xCA 80-8F uapi/scsi/cxlflash_ioctl.h
0xCB 00-1F CBM serial IEC bus in development:
<mailto:michael.klein@puffin.lb.shuttle.de>
0xCD 01 linux/reiserfs_fs.h
--- /dev/null
+Introduction
+============
+
+ The IBM Power architecture provides support for CAPI (Coherent
+ Accelerator Power Interface), which is available to certain PCIe slots
+ on Power 8 systems. CAPI can be thought of as a special tunneling
+ protocol through PCIe that allow PCIe adapters to look like special
+ purpose co-processors which can read or write an application's
+ memory and generate page faults. As a result, the host interface to
+ an adapter running in CAPI mode does not require the data buffers to
+ be mapped to the device's memory (IOMMU bypass) nor does it require
+ memory to be pinned.
+
+ On Linux, Coherent Accelerator (CXL) kernel services present CAPI
+ devices as a PCI device by implementing a virtual PCI host bridge.
+ This abstraction simplifies the infrastructure and programming
+ model, allowing for drivers to look similar to other native PCI
+ device drivers.
+
+ CXL provides a mechanism by which user space applications can
+ directly talk to a device (network or storage) bypassing the typical
+ kernel/device driver stack. The CXL Flash Adapter Driver enables a
+ user space application direct access to Flash storage.
+
+ The CXL Flash Adapter Driver is a kernel module that sits in the
+ SCSI stack as a low level device driver (below the SCSI disk and
+ protocol drivers) for the IBM CXL Flash Adapter. This driver is
+ responsible for the initialization of the adapter, setting up the
+ special path for user space access, and performing error recovery. It
+ communicates directly the Flash Accelerator Functional Unit (AFU)
+ as described in Documentation/powerpc/cxl.txt.
+
+ The cxlflash driver supports two, mutually exclusive, modes of
+ operation at the device (LUN) level:
+
+ - Any flash device (LUN) can be configured to be accessed as a
+ regular disk device (i.e.: /dev/sdc). This is the default mode.
+
+ - Any flash device (LUN) can be configured to be accessed from
+ user space with a special block library. This mode further
+ specifies the means of accessing the device and provides for
+ either raw access to the entire LUN (referred to as direct
+ or physical LUN access) or access to a kernel/AFU-mediated
+ partition of the LUN (referred to as virtual LUN access). The
+ segmentation of a disk device into virtual LUNs is assisted
+ by special translation services provided by the Flash AFU.
+
+Overview
+========
+
+ The Coherent Accelerator Interface Architecture (CAIA) introduces a
+ concept of a master context. A master typically has special privileges
+ granted to it by the kernel or hypervisor allowing it to perform AFU
+ wide management and control. The master may or may not be involved
+ directly in each user I/O, but at the minimum is involved in the
+ initial setup before the user application is allowed to send requests
+ directly to the AFU.
+
+ The CXL Flash Adapter Driver establishes a master context with the
+ AFU. It uses memory mapped I/O (MMIO) for this control and setup. The
+ Adapter Problem Space Memory Map looks like this:
+
+ +-------------------------------+
+ | 512 * 64 KB User MMIO |
+ | (per context) |
+ | User Accessible |
+ +-------------------------------+
+ | 512 * 128 B per context |
+ | Provisioning and Control |
+ | Trusted Process accessible |
+ +-------------------------------+
+ | 64 KB Global |
+ | Trusted Process accessible |
+ +-------------------------------+
+
+ This driver configures itself into the SCSI software stack as an
+ adapter driver. The driver is the only entity that is considered a
+ Trusted Process to program the Provisioning and Control and Global
+ areas in the MMIO Space shown above. The master context driver
+ discovers all LUNs attached to the CXL Flash adapter and instantiates
+ scsi block devices (/dev/sdb, /dev/sdc etc.) for each unique LUN
+ seen from each path.
+
+ Once these scsi block devices are instantiated, an application
+ written to a specification provided by the block library may get
+ access to the Flash from user space (without requiring a system call).
+
+ This master context driver also provides a series of ioctls for this
+ block library to enable this user space access. The driver supports
+ two modes for accessing the block device.
+
+ The first mode is called a virtual mode. In this mode a single scsi
+ block device (/dev/sdb) may be carved up into any number of distinct
+ virtual LUNs. The virtual LUNs may be resized as long as the sum of
+ the sizes of all the virtual LUNs, along with the meta-data associated
+ with it does not exceed the physical capacity.
+
+ The second mode is called the physical mode. In this mode a single
+ block device (/dev/sdb) may be opened directly by the block library
+ and the entire space for the LUN is available to the application.
+
+ Only the physical mode provides persistence of the data. i.e. The
+ data written to the block device will survive application exit and
+ restart and also reboot. The virtual LUNs do not persist (i.e. do
+ not survive after the application terminates or the system reboots).
+
+
+Block library API
+=================
+
+ Applications intending to get access to the CXL Flash from user
+ space should use the block library, as it abstracts the details of
+ interfacing directly with the cxlflash driver that are necessary for
+ performing administrative actions (i.e.: setup, tear down, resize).
+ The block library can be thought of as a 'user' of services,
+ implemented as IOCTLs, that are provided by the cxlflash driver
+ specifically for devices (LUNs) operating in user space access
+ mode. While it is not a requirement that applications understand
+ the interface between the block library and the cxlflash driver,
+ a high-level overview of each supported service (IOCTL) is provided
+ below.
+
+ The block library can be found on GitHub:
+ http://www.github.com/mikehollinger/ibmcapikv
+
+
+CXL Flash Driver IOCTLs
+=======================
+
+ Users, such as the block library, that wish to interface with a flash
+ device (LUN) via user space access need to use the services provided
+ by the cxlflash driver. As these services are implemented as ioctls,
+ a file descriptor handle must first be obtained in order to establish
+ the communication channel between a user and the kernel. This file
+ descriptor is obtained by opening the device special file associated
+ with the scsi disk device (/dev/sdb) that was created during LUN
+ discovery. As per the location of the cxlflash driver within the
+ SCSI protocol stack, this open is actually not seen by the cxlflash
+ driver. Upon successful open, the user receives a file descriptor
+ (herein referred to as fd1) that should be used for issuing the
+ subsequent ioctls listed below.
+
+ The structure definitions for these IOCTLs are available in:
+ uapi/scsi/cxlflash_ioctl.h
+
+DK_CXLFLASH_ATTACH
+------------------
+
+ This ioctl obtains, initializes, and starts a context using the CXL
+ kernel services. These services specify a context id (u16) by which
+ to uniquely identify the context and its allocated resources. The
+ services additionally provide a second file descriptor (herein
+ referred to as fd2) that is used by the block library to initiate
+ memory mapped I/O (via mmap()) to the CXL flash device and poll for
+ completion events. This file descriptor is intentionally installed by
+ this driver and not the CXL kernel services to allow for intermediary
+ notification and access in the event of a non-user-initiated close(),
+ such as a killed process. This design point is described in further
+ detail in the description for the DK_CXLFLASH_DETACH ioctl.
+
+ There are a few important aspects regarding the "tokens" (context id
+ and fd2) that are provided back to the user:
+
+ - These tokens are only valid for the process under which they
+ were created. The child of a forked process cannot continue
+ to use the context id or file descriptor created by its parent
+ (see DK_CXLFLASH_VLUN_CLONE for further details).
+
+ - These tokens are only valid for the lifetime of the context and
+ the process under which they were created. Once either is
+ destroyed, the tokens are to be considered stale and subsequent
+ usage will result in errors.
+
+ - When a context is no longer needed, the user shall detach from
+ the context via the DK_CXLFLASH_DETACH ioctl.
+
+ - A close on fd2 will invalidate the tokens. This operation is not
+ required by the user.
+
+DK_CXLFLASH_USER_DIRECT
+-----------------------
+ This ioctl is responsible for transitioning the LUN to direct
+ (physical) mode access and configuring the AFU for direct access from
+ user space on a per-context basis. Additionally, the block size and
+ last logical block address (LBA) are returned to the user.
+
+ As mentioned previously, when operating in user space access mode,
+ LUNs may be accessed in whole or in part. Only one mode is allowed
+ at a time and if one mode is active (outstanding references exist),
+ requests to use the LUN in a different mode are denied.
+
+ The AFU is configured for direct access from user space by adding an
+ entry to the AFU's resource handle table. The index of the entry is
+ treated as a resource handle that is returned to the user. The user
+ is then able to use the handle to reference the LUN during I/O.
+
+DK_CXLFLASH_USER_VIRTUAL
+------------------------
+ This ioctl is responsible for transitioning the LUN to virtual mode
+ of access and configuring the AFU for virtual access from user space
+ on a per-context basis. Additionally, the block size and last logical
+ block address (LBA) are returned to the user.
+
+ As mentioned previously, when operating in user space access mode,
+ LUNs may be accessed in whole or in part. Only one mode is allowed
+ at a time and if one mode is active (outstanding references exist),
+ requests to use the LUN in a different mode are denied.
+
+ The AFU is configured for virtual access from user space by adding
+ an entry to the AFU's resource handle table. The index of the entry
+ is treated as a resource handle that is returned to the user. The
+ user is then able to use the handle to reference the LUN during I/O.
+
+ By default, the virtual LUN is created with a size of 0. The user
+ would need to use the DK_CXLFLASH_VLUN_RESIZE ioctl to adjust the grow
+ the virtual LUN to a desired size. To avoid having to perform this
+ resize for the initial creation of the virtual LUN, the user has the
+ option of specifying a size as part of the DK_CXLFLASH_USER_VIRTUAL
+ ioctl, such that when success is returned to the user, the
+ resource handle that is provided is already referencing provisioned
+ storage. This is reflected by the last LBA being a non-zero value.
+
+DK_CXLFLASH_VLUN_RESIZE
+-----------------------
+ This ioctl is responsible for resizing a previously created virtual
+ LUN and will fail if invoked upon a LUN that is not in virtual
+ mode. Upon success, an updated last LBA is returned to the user
+ indicating the new size of the virtual LUN associated with the
+ resource handle.
+
+ The partitioning of virtual LUNs is jointly mediated by the cxlflash
+ driver and the AFU. An allocation table is kept for each LUN that is
+ operating in the virtual mode and used to program a LUN translation
+ table that the AFU references when provided with a resource handle.
+
+DK_CXLFLASH_RELEASE
+-------------------
+ This ioctl is responsible for releasing a previously obtained
+ reference to either a physical or virtual LUN. This can be
+ thought of as the inverse of the DK_CXLFLASH_USER_DIRECT or
+ DK_CXLFLASH_USER_VIRTUAL ioctls. Upon success, the resource handle
+ is no longer valid and the entry in the resource handle table is
+ made available to be used again.
+
+ As part of the release process for virtual LUNs, the virtual LUN
+ is first resized to 0 to clear out and free the translation tables
+ associated with the virtual LUN reference.
+
+DK_CXLFLASH_DETACH
+------------------
+ This ioctl is responsible for unregistering a context with the
+ cxlflash driver and release outstanding resources that were
+ not explicitly released via the DK_CXLFLASH_RELEASE ioctl. Upon
+ success, all "tokens" which had been provided to the user from the
+ DK_CXLFLASH_ATTACH onward are no longer valid.
+
+DK_CXLFLASH_VLUN_CLONE
+----------------------
+ This ioctl is responsible for cloning a previously created
+ context to a more recently created context. It exists solely to
+ support maintaining user space access to storage after a process
+ forks. Upon success, the child process (which invoked the ioctl)
+ will have access to the same LUNs via the same resource handle(s)
+ and fd2 as the parent, but under a different context.
+
+ Context sharing across processes is not supported with CXL and
+ therefore each fork must be met with establishing a new context
+ for the child process. This ioctl simplifies the state management
+ and playback required by a user in such a scenario. When a process
+ forks, child process can clone the parents context by first creating
+ a context (via DK_CXLFLASH_ATTACH) and then using this ioctl to
+ perform the clone from the parent to the child.
+
+ The clone itself is fairly simple. The resource handle and lun
+ translation tables are copied from the parent context to the child's
+ and then synced with the AFU.
+
+DK_CXLFLASH_VERIFY
+------------------
+ This ioctl is used to detect various changes such as the capacity of
+ the disk changing, the number of LUNs visible changing, etc. In cases
+ where the changes affect the application (such as a LUN resize), the
+ cxlflash driver will report the changed state to the application.
+
+ The user calls in when they want to validate that a LUN hasn't been
+ changed in response to a check condition. As the user is operating out
+ of band from the kernel, they will see these types of events without
+ the kernel's knowledge. When encountered, the user's architected
+ behavior is to call in to this ioctl, indicating what they want to
+ verify and passing along any appropriate information. For now, only
+ verifying a LUN change (ie: size different) with sense data is
+ supported.
+
+DK_CXLFLASH_RECOVER_AFU
+-----------------------
+ This ioctl is used to drive recovery (if such an action is warranted)
+ of a specified user context. Any state associated with the user context
+ is re-established upon successful recovery.
+
+ User contexts are put into an error condition when the device needs to
+ be reset or is terminating. Users are notified of this error condition
+ by seeing all 0xF's on an MMIO read. Upon encountering this, the
+ architected behavior for a user is to call into this ioctl to recover
+ their context. A user may also call into this ioctl at any time to
+ check if the device is operating normally. If a failure is returned
+ from this ioctl, the user is expected to gracefully clean up their
+ context via release/detach ioctls. Until they do, the context they
+ hold is not relinquished. The user may also optionally exit the process
+ at which time the context/resources they held will be freed as part of
+ the release fop.
+
+DK_CXLFLASH_MANAGE_LUN
+----------------------
+ This ioctl is used to switch a LUN from a mode where it is available
+ for file-system access (legacy), to a mode where it is set aside for
+ exclusive user space access (superpipe). In case a LUN is visible
+ across multiple ports and adapters, this ioctl is used to uniquely
+ identify each LUN by its World Wide Node Name (WWNN).
F: drivers/scsi/pmcraid.*
PMC SIERRA PM8001 DRIVER
-M: xjtuwjp@gmail.com
+M: Jack Wang <jinpu.wang@profitbricks.com>
M: lindar_liu@usish.com
L: pmchba@pmcs.com
L: linux-scsi@vger.kernel.org
}
spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
+ /* Basic sanity checks to prevent underflows or integer overflows */
+ if (karg.maxReplyBytes < 0 ||
+ karg.dataInSize < 0 ||
+ karg.dataOutSize < 0 ||
+ karg.dataSgeOffset < 0 ||
+ karg.maxSenseBytes < 0 ||
+ karg.dataSgeOffset > ioc->req_sz / 4)
+ return -EINVAL;
+
/* Verify that the final request frame will not be too large.
*/
sz = karg.dataSgeOffset * 4;
source "drivers/scsi/bnx2i/Kconfig"
source "drivers/scsi/bnx2fc/Kconfig"
source "drivers/scsi/be2iscsi/Kconfig"
+source "drivers/scsi/cxlflash/Kconfig"
config SGIWD93_SCSI
tristate "SGI WD93C93 SCSI Driver"
obj-$(CONFIG_SCSI_EATA) += eata.o
obj-$(CONFIG_SCSI_DC395x) += dc395x.o
obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o
+obj-$(CONFIG_CXLFLASH) += cxlflash/
obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o
obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/
obj-$(CONFIG_MEGARAID_SAS) += megaraid/
if (!io_handle->addr) {
asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
pci_name(asd_ha->pcidev));
+ err = -ENOMEM;
goto Err_unreq;
}
}
if (bfad_im_scsi_vport_transport_template)
fc_release_transport(bfad_im_scsi_vport_transport_template);
+
+ idr_destroy(&bfad_im_port_index);
}
void
--- /dev/null
+#
+# IBM CXL-attached Flash Accelerator SCSI Driver
+#
+
+config CXLFLASH
+ tristate "Support for IBM CAPI Flash"
+ depends on PCI && SCSI && CXL && EEH
+ default m
+ help
+ Allows CAPI Accelerated IO to Flash
+ If unsure, say N.
--- /dev/null
+obj-$(CONFIG_CXLFLASH) += cxlflash.o
+cxlflash-y += main.o superpipe.o lunmgt.o vlun.o
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _CXLFLASH_COMMON_H
+#define _CXLFLASH_COMMON_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+
+
+#define MAX_CONTEXT CXLFLASH_MAX_CONTEXT /* num contexts per afu */
+
+#define CXLFLASH_BLOCK_SIZE 4096 /* 4K blocks */
+#define CXLFLASH_MAX_XFER_SIZE 16777216 /* 16MB transfer */
+#define CXLFLASH_MAX_SECTORS (CXLFLASH_MAX_XFER_SIZE/512) /* SCSI wants
+ max_sectors
+ in units of
+ 512 byte
+ sectors
+ */
+
+#define NUM_RRQ_ENTRY 16 /* for master issued cmds */
+#define MAX_RHT_PER_CONTEXT (PAGE_SIZE / sizeof(struct sisl_rht_entry))
+
+/* AFU command retry limit */
+#define MC_RETRY_CNT 5 /* sufficient for SCSI check and
+ certain AFU errors */
+
+/* Command management definitions */
+#define CXLFLASH_NUM_CMDS (2 * CXLFLASH_MAX_CMDS) /* Must be a pow2 for
+ alignment and more
+ efficient array
+ index derivation
+ */
+
+#define CXLFLASH_MAX_CMDS 16
+#define CXLFLASH_MAX_CMDS_PER_LUN CXLFLASH_MAX_CMDS
+
+
+static inline void check_sizes(void)
+{
+ BUILD_BUG_ON_NOT_POWER_OF_2(CXLFLASH_NUM_CMDS);
+}
+
+/* AFU defines a fixed size of 4K for command buffers (borrow 4K page define) */
+#define CMD_BUFSIZE SIZE_4K
+
+/* flags in IOA status area for host use */
+#define B_DONE 0x01
+#define B_ERROR 0x02 /* set with B_DONE */
+#define B_TIMEOUT 0x04 /* set with B_DONE & B_ERROR */
+
+enum cxlflash_lr_state {
+ LINK_RESET_INVALID,
+ LINK_RESET_REQUIRED,
+ LINK_RESET_COMPLETE
+};
+
+enum cxlflash_init_state {
+ INIT_STATE_NONE,
+ INIT_STATE_PCI,
+ INIT_STATE_AFU,
+ INIT_STATE_SCSI
+};
+
+enum cxlflash_state {
+ STATE_NORMAL, /* Normal running state, everything good */
+ STATE_LIMBO, /* Limbo running state, trying to reset/recover */
+ STATE_FAILTERM /* Failed/terminating state, error out users/threads */
+};
+
+/*
+ * Each context has its own set of resource handles that is visible
+ * only from that context.
+ */
+
+struct cxlflash_cfg {
+ struct afu *afu;
+ struct cxl_context *mcctx;
+
+ struct pci_dev *dev;
+ struct pci_device_id *dev_id;
+ struct Scsi_Host *host;
+
+ ulong cxlflash_regs_pci;
+
+ struct work_struct work_q;
+ enum cxlflash_init_state init_state;
+ enum cxlflash_lr_state lr_state;
+ int lr_port;
+
+ struct cxl_afu *cxl_afu;
+
+ struct pci_pool *cxlflash_cmd_pool;
+ struct pci_dev *parent_dev;
+
+ atomic_t recovery_threads;
+ struct mutex ctx_recovery_mutex;
+ struct mutex ctx_tbl_list_mutex;
+ struct ctx_info *ctx_tbl[MAX_CONTEXT];
+ struct list_head ctx_err_recovery; /* contexts w/ recovery pending */
+ struct file_operations cxl_fops;
+
+ atomic_t num_user_contexts;
+
+ /* Parameters that are LUN table related */
+ int last_lun_index[CXLFLASH_NUM_FC_PORTS];
+ int promote_lun_index;
+ struct list_head lluns; /* list of llun_info structs */
+
+ wait_queue_head_t tmf_waitq;
+ bool tmf_active;
+ wait_queue_head_t limbo_waitq;
+ enum cxlflash_state state;
+};
+
+struct afu_cmd {
+ struct sisl_ioarcb rcb; /* IOARCB (cache line aligned) */
+ struct sisl_ioasa sa; /* IOASA must follow IOARCB */
+ spinlock_t slock;
+ struct completion cevent;
+ char *buf; /* per command buffer */
+ struct afu *parent;
+ int slot;
+ atomic_t free;
+
+ u8 cmd_tmf:1;
+
+ /* As per the SISLITE spec the IOARCB EA has to be 16-byte aligned.
+ * However for performance reasons the IOARCB/IOASA should be
+ * cache line aligned.
+ */
+} __aligned(cache_line_size());
+
+struct afu {
+ /* Stuff requiring alignment go first. */
+
+ u64 rrq_entry[NUM_RRQ_ENTRY]; /* 128B RRQ */
+ /*
+ * Command & data for AFU commands.
+ */
+ struct afu_cmd cmd[CXLFLASH_NUM_CMDS];
+
+ /* Beware of alignment till here. Preferably introduce new
+ * fields after this point
+ */
+
+ /* AFU HW */
+ struct cxl_ioctl_start_work work;
+ struct cxlflash_afu_map *afu_map; /* entire MMIO map */
+ struct sisl_host_map *host_map; /* MC host map */
+ struct sisl_ctrl_map *ctrl_map; /* MC control map */
+
+ ctx_hndl_t ctx_hndl; /* master's context handle */
+ u64 *hrrq_start;
+ u64 *hrrq_end;
+ u64 *hrrq_curr;
+ bool toggle;
+ bool read_room;
+ atomic64_t room;
+ u64 hb;
+ u32 cmd_couts; /* Number of command checkouts */
+ u32 internal_lun; /* User-desired LUN mode for this AFU */
+
+ char version[8];
+ u64 interface_version;
+
+ struct cxlflash_cfg *parent; /* Pointer back to parent cxlflash_cfg */
+
+};
+
+static inline u64 lun_to_lunid(u64 lun)
+{
+ u64 lun_id;
+
+ int_to_scsilun(lun, (struct scsi_lun *)&lun_id);
+ return swab64(lun_id);
+}
+
+int cxlflash_send_cmd(struct afu *, struct afu_cmd *);
+void cxlflash_wait_resp(struct afu *, struct afu_cmd *);
+int cxlflash_afu_reset(struct cxlflash_cfg *);
+struct afu_cmd *cxlflash_cmd_checkout(struct afu *);
+void cxlflash_cmd_checkin(struct afu_cmd *);
+int cxlflash_afu_sync(struct afu *, ctx_hndl_t, res_hndl_t, u8);
+void cxlflash_list_init(void);
+void cxlflash_term_global_luns(void);
+void cxlflash_free_errpage(void);
+int cxlflash_ioctl(struct scsi_device *, int, void __user *);
+void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *);
+int cxlflash_mark_contexts_error(struct cxlflash_cfg *);
+void cxlflash_term_local_luns(struct cxlflash_cfg *);
+void cxlflash_restore_luntable(struct cxlflash_cfg *);
+
+#endif /* ifndef _CXLFLASH_COMMON_H */
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <misc/cxl.h>
+#include <asm/unaligned.h>
+
+#include <scsi/scsi_host.h>
+#include <uapi/scsi/cxlflash_ioctl.h>
+
+#include "sislite.h"
+#include "common.h"
+#include "vlun.h"
+#include "superpipe.h"
+
+/**
+ * create_local() - allocate and initialize a local LUN information structure
+ * @sdev: SCSI device associated with LUN.
+ * @wwid: World Wide Node Name for LUN.
+ *
+ * Return: Allocated local llun_info structure on success, NULL on failure
+ */
+static struct llun_info *create_local(struct scsi_device *sdev, u8 *wwid)
+{
+ struct llun_info *lli = NULL;
+
+ lli = kzalloc(sizeof(*lli), GFP_KERNEL);
+ if (unlikely(!lli)) {
+ pr_err("%s: could not allocate lli\n", __func__);
+ goto out;
+ }
+
+ lli->sdev = sdev;
+ lli->newly_created = true;
+ lli->host_no = sdev->host->host_no;
+ lli->in_table = false;
+
+ memcpy(lli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN);
+out:
+ return lli;
+}
+
+/**
+ * create_global() - allocate and initialize a global LUN information structure
+ * @sdev: SCSI device associated with LUN.
+ * @wwid: World Wide Node Name for LUN.
+ *
+ * Return: Allocated global glun_info structure on success, NULL on failure
+ */
+static struct glun_info *create_global(struct scsi_device *sdev, u8 *wwid)
+{
+ struct glun_info *gli = NULL;
+
+ gli = kzalloc(sizeof(*gli), GFP_KERNEL);
+ if (unlikely(!gli)) {
+ pr_err("%s: could not allocate gli\n", __func__);
+ goto out;
+ }
+
+ mutex_init(&gli->mutex);
+ memcpy(gli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN);
+out:
+ return gli;
+}
+
+/**
+ * refresh_local() - find and update local LUN information structure by WWID
+ * @cfg: Internal structure associated with the host.
+ * @wwid: WWID associated with LUN.
+ *
+ * When the LUN is found, mark it by updating it's newly_created field.
+ *
+ * Return: Found local lun_info structure on success, NULL on failure
+ * If a LUN with the WWID is found in the list, refresh it's state.
+ */
+static struct llun_info *refresh_local(struct cxlflash_cfg *cfg, u8 *wwid)
+{
+ struct llun_info *lli, *temp;
+
+ list_for_each_entry_safe(lli, temp, &cfg->lluns, list)
+ if (!memcmp(lli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN)) {
+ lli->newly_created = false;
+ return lli;
+ }
+
+ return NULL;
+}
+
+/**
+ * lookup_global() - find a global LUN information structure by WWID
+ * @wwid: WWID associated with LUN.
+ *
+ * Return: Found global lun_info structure on success, NULL on failure
+ */
+static struct glun_info *lookup_global(u8 *wwid)
+{
+ struct glun_info *gli, *temp;
+
+ list_for_each_entry_safe(gli, temp, &global.gluns, list)
+ if (!memcmp(gli->wwid, wwid, DK_CXLFLASH_MANAGE_LUN_WWID_LEN))
+ return gli;
+
+ return NULL;
+}
+
+/**
+ * find_and_create_lun() - find or create a local LUN information structure
+ * @sdev: SCSI device associated with LUN.
+ * @wwid: WWID associated with LUN.
+ *
+ * The LUN is kept both in a local list (per adapter) and in a global list
+ * (across all adapters). Certain attributes of the LUN are local to the
+ * adapter (such as index, port selection mask etc.).
+ * The block allocation map is shared across all adapters (i.e. associated
+ * wih the global list). Since different attributes are associated with
+ * the per adapter and global entries, allocate two separate structures for each
+ * LUN (one local, one global).
+ *
+ * Keep a pointer back from the local to the global entry.
+ *
+ * Return: Found/Allocated local lun_info structure on success, NULL on failure
+ */
+static struct llun_info *find_and_create_lun(struct scsi_device *sdev, u8 *wwid)
+{
+ struct llun_info *lli = NULL;
+ struct glun_info *gli = NULL;
+ struct Scsi_Host *shost = sdev->host;
+ struct cxlflash_cfg *cfg = shost_priv(shost);
+
+ mutex_lock(&global.mutex);
+ if (unlikely(!wwid))
+ goto out;
+
+ lli = refresh_local(cfg, wwid);
+ if (lli)
+ goto out;
+
+ lli = create_local(sdev, wwid);
+ if (unlikely(!lli))
+ goto out;
+
+ gli = lookup_global(wwid);
+ if (gli) {
+ lli->parent = gli;
+ list_add(&lli->list, &cfg->lluns);
+ goto out;
+ }
+
+ gli = create_global(sdev, wwid);
+ if (unlikely(!gli)) {
+ kfree(lli);
+ lli = NULL;
+ goto out;
+ }
+
+ lli->parent = gli;
+ list_add(&lli->list, &cfg->lluns);
+
+ list_add(&gli->list, &global.gluns);
+
+out:
+ mutex_unlock(&global.mutex);
+ pr_debug("%s: returning %p\n", __func__, lli);
+ return lli;
+}
+
+/**
+ * cxlflash_term_local_luns() - Delete all entries from local LUN list, free.
+ * @cfg: Internal structure associated with the host.
+ */
+void cxlflash_term_local_luns(struct cxlflash_cfg *cfg)
+{
+ struct llun_info *lli, *temp;
+
+ mutex_lock(&global.mutex);
+ list_for_each_entry_safe(lli, temp, &cfg->lluns, list) {
+ list_del(&lli->list);
+ kfree(lli);
+ }
+ mutex_unlock(&global.mutex);
+}
+
+/**
+ * cxlflash_list_init() - initializes the global LUN list
+ */
+void cxlflash_list_init(void)
+{
+ INIT_LIST_HEAD(&global.gluns);
+ mutex_init(&global.mutex);
+ global.err_page = NULL;
+}
+
+/**
+ * cxlflash_term_global_luns() - frees resources associated with global LUN list
+ */
+void cxlflash_term_global_luns(void)
+{
+ struct glun_info *gli, *temp;
+
+ mutex_lock(&global.mutex);
+ list_for_each_entry_safe(gli, temp, &global.gluns, list) {
+ list_del(&gli->list);
+ cxlflash_ba_terminate(&gli->blka.ba_lun);
+ kfree(gli);
+ }
+ mutex_unlock(&global.mutex);
+}
+
+/**
+ * cxlflash_manage_lun() - handles LUN management activities
+ * @sdev: SCSI device associated with LUN.
+ * @manage: Manage ioctl data structure.
+ *
+ * This routine is used to notify the driver about a LUN's WWID and associate
+ * SCSI devices (sdev) with a global LUN instance. Additionally it serves to
+ * change a LUN's operating mode: legacy or superpipe.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_manage_lun(struct scsi_device *sdev,
+ struct dk_cxlflash_manage_lun *manage)
+{
+ int rc = 0;
+ struct llun_info *lli = NULL;
+ u64 flags = manage->hdr.flags;
+ u32 chan = sdev->channel;
+
+ lli = find_and_create_lun(sdev, manage->wwid);
+ pr_debug("%s: ENTER: WWID = %016llX%016llX, flags = %016llX li = %p\n",
+ __func__, get_unaligned_le64(&manage->wwid[0]),
+ get_unaligned_le64(&manage->wwid[8]),
+ manage->hdr.flags, lli);
+ if (unlikely(!lli)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (flags & DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE) {
+ if (lli->newly_created)
+ lli->port_sel = CHAN2PORT(chan);
+ else
+ lli->port_sel = BOTH_PORTS;
+ /* Store off lun in unpacked, AFU-friendly format */
+ lli->lun_id[chan] = lun_to_lunid(sdev->lun);
+ sdev->hostdata = lli;
+ } else if (flags & DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE) {
+ if (lli->parent->mode != MODE_NONE)
+ rc = -EBUSY;
+ else
+ sdev->hostdata = NULL;
+ }
+
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include <asm/unaligned.h>
+
+#include <misc/cxl.h>
+
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_host.h>
+#include <uapi/scsi/cxlflash_ioctl.h>
+
+#include "main.h"
+#include "sislite.h"
+#include "common.h"
+
+MODULE_DESCRIPTION(CXLFLASH_ADAPTER_NAME);
+MODULE_AUTHOR("Manoj N. Kumar <manoj@linux.vnet.ibm.com>");
+MODULE_AUTHOR("Matthew R. Ochs <mrochs@linux.vnet.ibm.com>");
+MODULE_LICENSE("GPL");
+
+
+/**
+ * cxlflash_cmd_checkout() - checks out an AFU command
+ * @afu: AFU to checkout from.
+ *
+ * Commands are checked out in a round-robin fashion. Note that since
+ * the command pool is larger than the hardware queue, the majority of
+ * times we will only loop once or twice before getting a command. The
+ * buffer and CDB within the command are initialized (zeroed) prior to
+ * returning.
+ *
+ * Return: The checked out command or NULL when command pool is empty.
+ */
+struct afu_cmd *cxlflash_cmd_checkout(struct afu *afu)
+{
+ int k, dec = CXLFLASH_NUM_CMDS;
+ struct afu_cmd *cmd;
+
+ while (dec--) {
+ k = (afu->cmd_couts++ & (CXLFLASH_NUM_CMDS - 1));
+
+ cmd = &afu->cmd[k];
+
+ if (!atomic_dec_if_positive(&cmd->free)) {
+ pr_debug("%s: returning found index=%d\n",
+ __func__, cmd->slot);
+ memset(cmd->buf, 0, CMD_BUFSIZE);
+ memset(cmd->rcb.cdb, 0, sizeof(cmd->rcb.cdb));
+ return cmd;
+ }
+ }
+
+ return NULL;
+}
+
+/**
+ * cxlflash_cmd_checkin() - checks in an AFU command
+ * @cmd: AFU command to checkin.
+ *
+ * Safe to pass commands that have already been checked in. Several
+ * internal tracking fields are reset as part of the checkin. Note
+ * that these are intentionally reset prior to toggling the free bit
+ * to avoid clobbering values in the event that the command is checked
+ * out right away.
+ */
+void cxlflash_cmd_checkin(struct afu_cmd *cmd)
+{
+ cmd->rcb.scp = NULL;
+ cmd->rcb.timeout = 0;
+ cmd->sa.ioasc = 0;
+ cmd->cmd_tmf = false;
+ cmd->sa.host_use[0] = 0; /* clears both completion and retry bytes */
+
+ if (unlikely(atomic_inc_return(&cmd->free) != 1)) {
+ pr_err("%s: Freeing cmd (%d) that is not in use!\n",
+ __func__, cmd->slot);
+ return;
+ }
+
+ pr_debug("%s: released cmd %p index=%d\n", __func__, cmd, cmd->slot);
+}
+
+/**
+ * process_cmd_err() - command error handler
+ * @cmd: AFU command that experienced the error.
+ * @scp: SCSI command associated with the AFU command in error.
+ *
+ * Translates error bits from AFU command to SCSI command results.
+ */
+static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
+{
+ struct sisl_ioarcb *ioarcb;
+ struct sisl_ioasa *ioasa;
+
+ if (unlikely(!cmd))
+ return;
+
+ ioarcb = &(cmd->rcb);
+ ioasa = &(cmd->sa);
+
+ if (ioasa->rc.flags & SISL_RC_FLAGS_UNDERRUN) {
+ pr_debug("%s: cmd underrun cmd = %p scp = %p\n",
+ __func__, cmd, scp);
+ scp->result = (DID_ERROR << 16);
+ }
+
+ if (ioasa->rc.flags & SISL_RC_FLAGS_OVERRUN) {
+ pr_debug("%s: cmd underrun cmd = %p scp = %p\n",
+ __func__, cmd, scp);
+ scp->result = (DID_ERROR << 16);
+ }
+
+ pr_debug("%s: cmd failed afu_rc=%d scsi_rc=%d fc_rc=%d "
+ "afu_extra=0x%X, scsi_entra=0x%X, fc_extra=0x%X\n",
+ __func__, ioasa->rc.afu_rc, ioasa->rc.scsi_rc,
+ ioasa->rc.fc_rc, ioasa->afu_extra, ioasa->scsi_extra,
+ ioasa->fc_extra);
+
+ if (ioasa->rc.scsi_rc) {
+ /* We have a SCSI status */
+ if (ioasa->rc.flags & SISL_RC_FLAGS_SENSE_VALID) {
+ memcpy(scp->sense_buffer, ioasa->sense_data,
+ SISL_SENSE_DATA_LEN);
+ scp->result = ioasa->rc.scsi_rc;
+ } else
+ scp->result = ioasa->rc.scsi_rc | (DID_ERROR << 16);
+ }
+
+ /*
+ * We encountered an error. Set scp->result based on nature
+ * of error.
+ */
+ if (ioasa->rc.fc_rc) {
+ /* We have an FC status */
+ switch (ioasa->rc.fc_rc) {
+ case SISL_FC_RC_LINKDOWN:
+ scp->result = (DID_REQUEUE << 16);
+ break;
+ case SISL_FC_RC_RESID:
+ /* This indicates an FCP resid underrun */
+ if (!(ioasa->rc.flags & SISL_RC_FLAGS_OVERRUN)) {
+ /* If the SISL_RC_FLAGS_OVERRUN flag was set,
+ * then we will handle this error else where.
+ * If not then we must handle it here.
+ * This is probably an AFU bug. We will
+ * attempt a retry to see if that resolves it.
+ */
+ scp->result = (DID_ERROR << 16);
+ }
+ break;
+ case SISL_FC_RC_RESIDERR:
+ /* Resid mismatch between adapter and device */
+ case SISL_FC_RC_TGTABORT:
+ case SISL_FC_RC_ABORTOK:
+ case SISL_FC_RC_ABORTFAIL:
+ case SISL_FC_RC_NOLOGI:
+ case SISL_FC_RC_ABORTPEND:
+ case SISL_FC_RC_WRABORTPEND:
+ case SISL_FC_RC_NOEXP:
+ case SISL_FC_RC_INUSE:
+ scp->result = (DID_ERROR << 16);
+ break;
+ }
+ }
+
+ if (ioasa->rc.afu_rc) {
+ /* We have an AFU error */
+ switch (ioasa->rc.afu_rc) {
+ case SISL_AFU_RC_NO_CHANNELS:
+ scp->result = (DID_MEDIUM_ERROR << 16);
+ break;
+ case SISL_AFU_RC_DATA_DMA_ERR:
+ switch (ioasa->afu_extra) {
+ case SISL_AFU_DMA_ERR_PAGE_IN:
+ /* Retry */
+ scp->result = (DID_IMM_RETRY << 16);
+ break;
+ case SISL_AFU_DMA_ERR_INVALID_EA:
+ default:
+ scp->result = (DID_ERROR << 16);
+ }
+ break;
+ case SISL_AFU_RC_OUT_OF_DATA_BUFS:
+ /* Retry */
+ scp->result = (DID_ALLOC_FAILURE << 16);
+ break;
+ default:
+ scp->result = (DID_ERROR << 16);
+ }
+ }
+}
+
+/**
+ * cmd_complete() - command completion handler
+ * @cmd: AFU command that has completed.
+ *
+ * Prepares and submits command that has either completed or timed out to
+ * the SCSI stack. Checks AFU command back into command pool for non-internal
+ * (rcb.scp populated) commands.
+ */
+static void cmd_complete(struct afu_cmd *cmd)
+{
+ struct scsi_cmnd *scp;
+ u32 resid;
+ ulong lock_flags;
+ struct afu *afu = cmd->parent;
+ struct cxlflash_cfg *cfg = afu->parent;
+ bool cmd_is_tmf;
+
+ spin_lock_irqsave(&cmd->slock, lock_flags);
+ cmd->sa.host_use_b[0] |= B_DONE;
+ spin_unlock_irqrestore(&cmd->slock, lock_flags);
+
+ if (cmd->rcb.scp) {
+ scp = cmd->rcb.scp;
+ if (unlikely(cmd->sa.rc.afu_rc ||
+ cmd->sa.rc.scsi_rc ||
+ cmd->sa.rc.fc_rc))
+ process_cmd_err(cmd, scp);
+ else
+ scp->result = (DID_OK << 16);
+
+ resid = cmd->sa.resid;
+ cmd_is_tmf = cmd->cmd_tmf;
+ cxlflash_cmd_checkin(cmd); /* Don't use cmd after here */
+
+ pr_debug("%s: calling scsi_set_resid, scp=%p "
+ "result=%X resid=%d\n", __func__,
+ scp, scp->result, resid);
+
+ scsi_set_resid(scp, resid);
+ scsi_dma_unmap(scp);
+ scp->scsi_done(scp);
+
+ if (cmd_is_tmf) {
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ cfg->tmf_active = false;
+ wake_up_all_locked(&cfg->tmf_waitq);
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock,
+ lock_flags);
+ }
+ } else
+ complete(&cmd->cevent);
+}
+
+/**
+ * send_tmf() - sends a Task Management Function (TMF)
+ * @afu: AFU to checkout from.
+ * @scp: SCSI command from stack.
+ * @tmfcmd: TMF command to send.
+ *
+ * Return:
+ * 0 on success
+ * SCSI_MLQUEUE_HOST_BUSY when host is busy
+ */
+static int send_tmf(struct afu *afu, struct scsi_cmnd *scp, u64 tmfcmd)
+{
+ struct afu_cmd *cmd;
+
+ u32 port_sel = scp->device->channel + 1;
+ short lflag = 0;
+ struct Scsi_Host *host = scp->device->host;
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata;
+ ulong lock_flags;
+ int rc = 0;
+
+ cmd = cxlflash_cmd_checkout(afu);
+ if (unlikely(!cmd)) {
+ pr_err("%s: could not get a free command\n", __func__);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ }
+
+ /* If a Task Management Function is active, do not send one more.
+ */
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ if (cfg->tmf_active)
+ wait_event_interruptible_locked_irq(cfg->tmf_waitq,
+ !cfg->tmf_active);
+ cfg->tmf_active = true;
+ cmd->cmd_tmf = true;
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+
+ cmd->rcb.ctx_id = afu->ctx_hndl;
+ cmd->rcb.port_sel = port_sel;
+ cmd->rcb.lun_id = lun_to_lunid(scp->device->lun);
+
+ lflag = SISL_REQ_FLAGS_TMF_CMD;
+
+ cmd->rcb.req_flags = (SISL_REQ_FLAGS_PORT_LUN_ID |
+ SISL_REQ_FLAGS_SUP_UNDERRUN | lflag);
+
+ /* Stash the scp in the reserved field, for reuse during interrupt */
+ cmd->rcb.scp = scp;
+
+ /* Copy the CDB from the cmd passed in */
+ memcpy(cmd->rcb.cdb, &tmfcmd, sizeof(tmfcmd));
+
+ /* Send the command */
+ rc = cxlflash_send_cmd(afu, cmd);
+ if (unlikely(rc)) {
+ cxlflash_cmd_checkin(cmd);
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ cfg->tmf_active = false;
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+ goto out;
+ }
+
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ wait_event_interruptible_locked_irq(cfg->tmf_waitq, !cfg->tmf_active);
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+out:
+ return rc;
+}
+
+/**
+ * cxlflash_driver_info() - information handler for this host driver
+ * @host: SCSI host associated with device.
+ *
+ * Return: A string describing the device.
+ */
+static const char *cxlflash_driver_info(struct Scsi_Host *host)
+{
+ return CXLFLASH_ADAPTER_NAME;
+}
+
+/**
+ * cxlflash_queuecommand() - sends a mid-layer request
+ * @host: SCSI host associated with device.
+ * @scp: SCSI command to send.
+ *
+ * Return:
+ * 0 on success
+ * SCSI_MLQUEUE_HOST_BUSY when host is busy
+ */
+static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata;
+ struct afu *afu = cfg->afu;
+ struct pci_dev *pdev = cfg->dev;
+ struct afu_cmd *cmd;
+ u32 port_sel = scp->device->channel + 1;
+ int nseg, i, ncount;
+ struct scatterlist *sg;
+ ulong lock_flags;
+ short lflag = 0;
+ int rc = 0;
+
+ pr_debug("%s: (scp=%p) %d/%d/%d/%llu cdb=(%08X-%08X-%08X-%08X)\n",
+ __func__, scp, host->host_no, scp->device->channel,
+ scp->device->id, scp->device->lun,
+ get_unaligned_be32(&((u32 *)scp->cmnd)[0]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[1]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
+
+ /* If a Task Management Function is active, wait for it to complete
+ * before continuing with regular commands.
+ */
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ if (cfg->tmf_active) {
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ }
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+
+ switch (cfg->state) {
+ case STATE_LIMBO:
+ dev_dbg_ratelimited(&cfg->dev->dev, "%s: device in limbo!\n",
+ __func__);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ case STATE_FAILTERM:
+ dev_dbg_ratelimited(&cfg->dev->dev, "%s: device has failed!\n",
+ __func__);
+ scp->result = (DID_NO_CONNECT << 16);
+ scp->scsi_done(scp);
+ rc = 0;
+ goto out;
+ default:
+ break;
+ }
+
+ cmd = cxlflash_cmd_checkout(afu);
+ if (unlikely(!cmd)) {
+ pr_err("%s: could not get a free command\n", __func__);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ }
+
+ cmd->rcb.ctx_id = afu->ctx_hndl;
+ cmd->rcb.port_sel = port_sel;
+ cmd->rcb.lun_id = lun_to_lunid(scp->device->lun);
+
+ if (scp->sc_data_direction == DMA_TO_DEVICE)
+ lflag = SISL_REQ_FLAGS_HOST_WRITE;
+ else
+ lflag = SISL_REQ_FLAGS_HOST_READ;
+
+ cmd->rcb.req_flags = (SISL_REQ_FLAGS_PORT_LUN_ID |
+ SISL_REQ_FLAGS_SUP_UNDERRUN | lflag);
+
+ /* Stash the scp in the reserved field, for reuse during interrupt */
+ cmd->rcb.scp = scp;
+
+ nseg = scsi_dma_map(scp);
+ if (unlikely(nseg < 0)) {
+ dev_err(&pdev->dev, "%s: Fail DMA map! nseg=%d\n",
+ __func__, nseg);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ }
+
+ ncount = scsi_sg_count(scp);
+ scsi_for_each_sg(scp, sg, ncount, i) {
+ cmd->rcb.data_len = sg_dma_len(sg);
+ cmd->rcb.data_ea = sg_dma_address(sg);
+ }
+
+ /* Copy the CDB from the scsi_cmnd passed in */
+ memcpy(cmd->rcb.cdb, scp->cmnd, sizeof(cmd->rcb.cdb));
+
+ /* Send the command */
+ rc = cxlflash_send_cmd(afu, cmd);
+ if (unlikely(rc)) {
+ cxlflash_cmd_checkin(cmd);
+ scsi_dma_unmap(scp);
+ }
+
+out:
+ return rc;
+}
+
+/**
+ * cxlflash_eh_device_reset_handler() - reset a single LUN
+ * @scp: SCSI command to send.
+ *
+ * Return:
+ * SUCCESS as defined in scsi/scsi.h
+ * FAILED as defined in scsi/scsi.h
+ */
+static int cxlflash_eh_device_reset_handler(struct scsi_cmnd *scp)
+{
+ int rc = SUCCESS;
+ struct Scsi_Host *host = scp->device->host;
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata;
+ struct afu *afu = cfg->afu;
+ int rcr = 0;
+
+ pr_debug("%s: (scp=%p) %d/%d/%d/%llu "
+ "cdb=(%08X-%08X-%08X-%08X)\n", __func__, scp,
+ host->host_no, scp->device->channel,
+ scp->device->id, scp->device->lun,
+ get_unaligned_be32(&((u32 *)scp->cmnd)[0]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[1]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
+
+ switch (cfg->state) {
+ case STATE_NORMAL:
+ rcr = send_tmf(afu, scp, TMF_LUN_RESET);
+ if (unlikely(rcr))
+ rc = FAILED;
+ break;
+ case STATE_LIMBO:
+ wait_event(cfg->limbo_waitq, cfg->state != STATE_LIMBO);
+ if (cfg->state == STATE_NORMAL)
+ break;
+ /* fall through */
+ default:
+ rc = FAILED;
+ break;
+ }
+
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_eh_host_reset_handler() - reset the host adapter
+ * @scp: SCSI command from stack identifying host.
+ *
+ * Return:
+ * SUCCESS as defined in scsi/scsi.h
+ * FAILED as defined in scsi/scsi.h
+ */
+static int cxlflash_eh_host_reset_handler(struct scsi_cmnd *scp)
+{
+ int rc = SUCCESS;
+ int rcr = 0;
+ struct Scsi_Host *host = scp->device->host;
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)host->hostdata;
+
+ pr_debug("%s: (scp=%p) %d/%d/%d/%llu "
+ "cdb=(%08X-%08X-%08X-%08X)\n", __func__, scp,
+ host->host_no, scp->device->channel,
+ scp->device->id, scp->device->lun,
+ get_unaligned_be32(&((u32 *)scp->cmnd)[0]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[1]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
+ get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
+
+ switch (cfg->state) {
+ case STATE_NORMAL:
+ cfg->state = STATE_LIMBO;
+ scsi_block_requests(cfg->host);
+ cxlflash_mark_contexts_error(cfg);
+ rcr = cxlflash_afu_reset(cfg);
+ if (rcr) {
+ rc = FAILED;
+ cfg->state = STATE_FAILTERM;
+ } else
+ cfg->state = STATE_NORMAL;
+ wake_up_all(&cfg->limbo_waitq);
+ scsi_unblock_requests(cfg->host);
+ break;
+ case STATE_LIMBO:
+ wait_event(cfg->limbo_waitq, cfg->state != STATE_LIMBO);
+ if (cfg->state == STATE_NORMAL)
+ break;
+ /* fall through */
+ default:
+ rc = FAILED;
+ break;
+ }
+
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_change_queue_depth() - change the queue depth for the device
+ * @sdev: SCSI device destined for queue depth change.
+ * @qdepth: Requested queue depth value to set.
+ *
+ * The requested queue depth is capped to the maximum supported value.
+ *
+ * Return: The actual queue depth set.
+ */
+static int cxlflash_change_queue_depth(struct scsi_device *sdev, int qdepth)
+{
+
+ if (qdepth > CXLFLASH_MAX_CMDS_PER_LUN)
+ qdepth = CXLFLASH_MAX_CMDS_PER_LUN;
+
+ scsi_change_queue_depth(sdev, qdepth);
+ return sdev->queue_depth;
+}
+
+/**
+ * cxlflash_show_port_status() - queries and presents the current port status
+ * @dev: Generic device associated with the host owning the port.
+ * @attr: Device attribute representing the port.
+ * @buf: Buffer of length PAGE_SIZE to report back port status in ASCII.
+ *
+ * Return: The size of the ASCII string returned in @buf.
+ */
+static ssize_t cxlflash_show_port_status(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata;
+ struct afu *afu = cfg->afu;
+
+ char *disp_status;
+ int rc;
+ u32 port;
+ u64 status;
+ u64 *fc_regs;
+
+ rc = kstrtouint((attr->attr.name + 4), 10, &port);
+ if (rc || (port >= NUM_FC_PORTS))
+ return 0;
+
+ fc_regs = &afu->afu_map->global.fc_regs[port][0];
+ status =
+ (readq_be(&fc_regs[FC_MTIP_STATUS / 8]) & FC_MTIP_STATUS_MASK);
+
+ if (status == FC_MTIP_STATUS_ONLINE)
+ disp_status = "online";
+ else if (status == FC_MTIP_STATUS_OFFLINE)
+ disp_status = "offline";
+ else
+ disp_status = "unknown";
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", disp_status);
+}
+
+/**
+ * cxlflash_show_lun_mode() - presents the current LUN mode of the host
+ * @dev: Generic device associated with the host.
+ * @attr: Device attribute representing the lun mode.
+ * @buf: Buffer of length PAGE_SIZE to report back the LUN mode in ASCII.
+ *
+ * Return: The size of the ASCII string returned in @buf.
+ */
+static ssize_t cxlflash_show_lun_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata;
+ struct afu *afu = cfg->afu;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", afu->internal_lun);
+}
+
+/**
+ * cxlflash_store_lun_mode() - sets the LUN mode of the host
+ * @dev: Generic device associated with the host.
+ * @attr: Device attribute representing the lun mode.
+ * @buf: Buffer of length PAGE_SIZE containing the LUN mode in ASCII.
+ * @count: Length of data resizing in @buf.
+ *
+ * The CXL Flash AFU supports a dummy LUN mode where the external
+ * links and storage are not required. Space on the FPGA is used
+ * to create 1 or 2 small LUNs which are presented to the system
+ * as if they were a normal storage device. This feature is useful
+ * during development and also provides manufacturing with a way
+ * to test the AFU without an actual device.
+ *
+ * 0 = external LUN[s] (default)
+ * 1 = internal LUN (1 x 64K, 512B blocks, id 0)
+ * 2 = internal LUN (1 x 64K, 4K blocks, id 0)
+ * 3 = internal LUN (2 x 32K, 512B blocks, ids 0,1)
+ * 4 = internal LUN (2 x 32K, 4K blocks, ids 0,1)
+ *
+ * Return: The size of the ASCII string returned in @buf.
+ */
+static ssize_t cxlflash_store_lun_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)shost->hostdata;
+ struct afu *afu = cfg->afu;
+ int rc;
+ u32 lun_mode;
+
+ rc = kstrtouint(buf, 10, &lun_mode);
+ if (!rc && (lun_mode < 5) && (lun_mode != afu->internal_lun)) {
+ afu->internal_lun = lun_mode;
+ cxlflash_afu_reset(cfg);
+ scsi_scan_host(cfg->host);
+ }
+
+ return count;
+}
+
+/**
+ * cxlflash_show_ioctl_version() - presents the current ioctl version of the host
+ * @dev: Generic device associated with the host.
+ * @attr: Device attribute representing the ioctl version.
+ * @buf: Buffer of length PAGE_SIZE to report back the ioctl version.
+ *
+ * Return: The size of the ASCII string returned in @buf.
+ */
+static ssize_t cxlflash_show_ioctl_version(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%u\n", DK_CXLFLASH_VERSION_0);
+}
+
+/**
+ * cxlflash_show_dev_mode() - presents the current mode of the device
+ * @dev: Generic device associated with the device.
+ * @attr: Device attribute representing the device mode.
+ * @buf: Buffer of length PAGE_SIZE to report back the dev mode in ASCII.
+ *
+ * Return: The size of the ASCII string returned in @buf.
+ */
+static ssize_t cxlflash_show_dev_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ sdev->hostdata ? "superpipe" : "legacy");
+}
+
+/**
+ * cxlflash_wait_for_pci_err_recovery() - wait for error recovery during probe
+ * @cxlflash: Internal structure associated with the host.
+ */
+static void cxlflash_wait_for_pci_err_recovery(struct cxlflash_cfg *cfg)
+{
+ struct pci_dev *pdev = cfg->dev;
+
+ if (pci_channel_offline(pdev))
+ wait_event_timeout(cfg->limbo_waitq,
+ !pci_channel_offline(pdev),
+ CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT);
+}
+
+/*
+ * Host attributes
+ */
+static DEVICE_ATTR(port0, S_IRUGO, cxlflash_show_port_status, NULL);
+static DEVICE_ATTR(port1, S_IRUGO, cxlflash_show_port_status, NULL);
+static DEVICE_ATTR(lun_mode, S_IRUGO | S_IWUSR, cxlflash_show_lun_mode,
+ cxlflash_store_lun_mode);
+static DEVICE_ATTR(ioctl_version, S_IRUGO, cxlflash_show_ioctl_version, NULL);
+
+static struct device_attribute *cxlflash_host_attrs[] = {
+ &dev_attr_port0,
+ &dev_attr_port1,
+ &dev_attr_lun_mode,
+ &dev_attr_ioctl_version,
+ NULL
+};
+
+/*
+ * Device attributes
+ */
+static DEVICE_ATTR(mode, S_IRUGO, cxlflash_show_dev_mode, NULL);
+
+static struct device_attribute *cxlflash_dev_attrs[] = {
+ &dev_attr_mode,
+ NULL
+};
+
+/*
+ * Host template
+ */
+static struct scsi_host_template driver_template = {
+ .module = THIS_MODULE,
+ .name = CXLFLASH_ADAPTER_NAME,
+ .info = cxlflash_driver_info,
+ .ioctl = cxlflash_ioctl,
+ .proc_name = CXLFLASH_NAME,
+ .queuecommand = cxlflash_queuecommand,
+ .eh_device_reset_handler = cxlflash_eh_device_reset_handler,
+ .eh_host_reset_handler = cxlflash_eh_host_reset_handler,
+ .change_queue_depth = cxlflash_change_queue_depth,
+ .cmd_per_lun = 16,
+ .can_queue = CXLFLASH_MAX_CMDS,
+ .this_id = -1,
+ .sg_tablesize = SG_NONE, /* No scatter gather support. */
+ .max_sectors = CXLFLASH_MAX_SECTORS,
+ .use_clustering = ENABLE_CLUSTERING,
+ .shost_attrs = cxlflash_host_attrs,
+ .sdev_attrs = cxlflash_dev_attrs,
+};
+
+/*
+ * Device dependent values
+ */
+static struct dev_dependent_vals dev_corsa_vals = { CXLFLASH_MAX_SECTORS };
+
+/*
+ * PCI device binding table
+ */
+static struct pci_device_id cxlflash_pci_table[] = {
+ {PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CORSA,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_corsa_vals},
+ {}
+};
+
+MODULE_DEVICE_TABLE(pci, cxlflash_pci_table);
+
+/**
+ * free_mem() - free memory associated with the AFU
+ * @cxlflash: Internal structure associated with the host.
+ */
+static void free_mem(struct cxlflash_cfg *cfg)
+{
+ int i;
+ char *buf = NULL;
+ struct afu *afu = cfg->afu;
+
+ if (cfg->afu) {
+ for (i = 0; i < CXLFLASH_NUM_CMDS; i++) {
+ buf = afu->cmd[i].buf;
+ if (!((u64)buf & (PAGE_SIZE - 1)))
+ free_page((ulong)buf);
+ }
+
+ free_pages((ulong)afu, get_order(sizeof(struct afu)));
+ cfg->afu = NULL;
+ }
+}
+
+/**
+ * stop_afu() - stops the AFU command timers and unmaps the MMIO space
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Safe to call with AFU in a partially allocated/initialized state.
+ */
+static void stop_afu(struct cxlflash_cfg *cfg)
+{
+ int i;
+ struct afu *afu = cfg->afu;
+
+ if (likely(afu)) {
+ for (i = 0; i < CXLFLASH_NUM_CMDS; i++)
+ complete(&afu->cmd[i].cevent);
+
+ if (likely(afu->afu_map)) {
+ cxl_psa_unmap((void *)afu->afu_map);
+ afu->afu_map = NULL;
+ }
+ }
+}
+
+/**
+ * term_mc() - terminates the master context
+ * @cxlflash: Internal structure associated with the host.
+ * @level: Depth of allocation, where to begin waterfall tear down.
+ *
+ * Safe to call with AFU/MC in partially allocated/initialized state.
+ */
+static void term_mc(struct cxlflash_cfg *cfg, enum undo_level level)
+{
+ int rc = 0;
+ struct afu *afu = cfg->afu;
+
+ if (!afu || !cfg->mcctx) {
+ pr_err("%s: returning from term_mc with NULL afu or MC\n",
+ __func__);
+ return;
+ }
+
+ switch (level) {
+ case UNDO_START:
+ rc = cxl_stop_context(cfg->mcctx);
+ BUG_ON(rc);
+ case UNMAP_THREE:
+ cxl_unmap_afu_irq(cfg->mcctx, 3, afu);
+ case UNMAP_TWO:
+ cxl_unmap_afu_irq(cfg->mcctx, 2, afu);
+ case UNMAP_ONE:
+ cxl_unmap_afu_irq(cfg->mcctx, 1, afu);
+ case FREE_IRQ:
+ cxl_free_afu_irqs(cfg->mcctx);
+ case RELEASE_CONTEXT:
+ cfg->mcctx = NULL;
+ }
+}
+
+/**
+ * term_afu() - terminates the AFU
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Safe to call with AFU/MC in partially allocated/initialized state.
+ */
+static void term_afu(struct cxlflash_cfg *cfg)
+{
+ term_mc(cfg, UNDO_START);
+
+ if (cfg->afu)
+ stop_afu(cfg);
+
+ pr_debug("%s: returning\n", __func__);
+}
+
+/**
+ * cxlflash_remove() - PCI entry point to tear down host
+ * @pdev: PCI device associated with the host.
+ *
+ * Safe to use as a cleanup in partially allocated/initialized state.
+ */
+static void cxlflash_remove(struct pci_dev *pdev)
+{
+ struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
+ ulong lock_flags;
+
+ /* If a Task Management Function is active, wait for it to complete
+ * before continuing with remove.
+ */
+ spin_lock_irqsave(&cfg->tmf_waitq.lock, lock_flags);
+ if (cfg->tmf_active)
+ wait_event_interruptible_locked_irq(cfg->tmf_waitq,
+ !cfg->tmf_active);
+ spin_unlock_irqrestore(&cfg->tmf_waitq.lock, lock_flags);
+
+ cfg->state = STATE_FAILTERM;
+ cxlflash_stop_term_user_contexts(cfg);
+
+ switch (cfg->init_state) {
+ case INIT_STATE_SCSI:
+ cxlflash_term_local_luns(cfg);
+ scsi_remove_host(cfg->host);
+ scsi_host_put(cfg->host);
+ /* Fall through */
+ case INIT_STATE_AFU:
+ term_afu(cfg);
+ case INIT_STATE_PCI:
+ pci_release_regions(cfg->dev);
+ pci_disable_device(pdev);
+ case INIT_STATE_NONE:
+ flush_work(&cfg->work_q);
+ free_mem(cfg);
+ break;
+ }
+
+ pr_debug("%s: returning\n", __func__);
+}
+
+/**
+ * alloc_mem() - allocates the AFU and its command pool
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * A partially allocated state remains on failure.
+ *
+ * Return:
+ * 0 on success
+ * -ENOMEM on failure to allocate memory
+ */
+static int alloc_mem(struct cxlflash_cfg *cfg)
+{
+ int rc = 0;
+ int i;
+ char *buf = NULL;
+
+ /* This allocation is about 12K, i.e. only 1 64k page
+ * and upto 4 4k pages
+ */
+ cfg->afu = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+ get_order(sizeof(struct afu)));
+ if (unlikely(!cfg->afu)) {
+ pr_err("%s: cannot get %d free pages\n",
+ __func__, get_order(sizeof(struct afu)));
+ rc = -ENOMEM;
+ goto out;
+ }
+ cfg->afu->parent = cfg;
+ cfg->afu->afu_map = NULL;
+
+ for (i = 0; i < CXLFLASH_NUM_CMDS; buf += CMD_BUFSIZE, i++) {
+ if (!((u64)buf & (PAGE_SIZE - 1))) {
+ buf = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+ if (unlikely(!buf)) {
+ pr_err("%s: Allocate command buffers fail!\n",
+ __func__);
+ rc = -ENOMEM;
+ free_mem(cfg);
+ goto out;
+ }
+ }
+
+ cfg->afu->cmd[i].buf = buf;
+ atomic_set(&cfg->afu->cmd[i].free, 1);
+ cfg->afu->cmd[i].slot = i;
+ }
+
+out:
+ return rc;
+}
+
+/**
+ * init_pci() - initializes the host as a PCI device
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Return:
+ * 0 on success
+ * -EIO on unable to communicate with device
+ * A return code from the PCI sub-routines
+ */
+static int init_pci(struct cxlflash_cfg *cfg)
+{
+ struct pci_dev *pdev = cfg->dev;
+ int rc = 0;
+
+ cfg->cxlflash_regs_pci = pci_resource_start(pdev, 0);
+ rc = pci_request_regions(pdev, CXLFLASH_NAME);
+ if (rc < 0) {
+ dev_err(&pdev->dev,
+ "%s: Couldn't register memory range of registers\n",
+ __func__);
+ goto out;
+ }
+
+ rc = pci_enable_device(pdev);
+ if (rc || pci_channel_offline(pdev)) {
+ if (pci_channel_offline(pdev)) {
+ cxlflash_wait_for_pci_err_recovery(cfg);
+ rc = pci_enable_device(pdev);
+ }
+
+ if (rc) {
+ dev_err(&pdev->dev, "%s: Cannot enable adapter\n",
+ __func__);
+ cxlflash_wait_for_pci_err_recovery(cfg);
+ goto out_release_regions;
+ }
+ }
+
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (rc < 0) {
+ dev_dbg(&pdev->dev, "%s: Failed to set 64 bit PCI DMA mask\n",
+ __func__);
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ }
+
+ if (rc < 0) {
+ dev_err(&pdev->dev, "%s: Failed to set PCI DMA mask\n",
+ __func__);
+ goto out_disable;
+ }
+
+ pci_set_master(pdev);
+
+ if (pci_channel_offline(pdev)) {
+ cxlflash_wait_for_pci_err_recovery(cfg);
+ if (pci_channel_offline(pdev)) {
+ rc = -EIO;
+ goto out_msi_disable;
+ }
+ }
+
+ rc = pci_save_state(pdev);
+
+ if (rc != PCIBIOS_SUCCESSFUL) {
+ dev_err(&pdev->dev, "%s: Failed to save PCI config space\n",
+ __func__);
+ rc = -EIO;
+ goto cleanup_nolog;
+ }
+
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+
+cleanup_nolog:
+out_msi_disable:
+ cxlflash_wait_for_pci_err_recovery(cfg);
+out_disable:
+ pci_disable_device(pdev);
+out_release_regions:
+ pci_release_regions(pdev);
+ goto out;
+
+}
+
+/**
+ * init_scsi() - adds the host to the SCSI stack and kicks off host scan
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Return:
+ * 0 on success
+ * A return code from adding the host
+ */
+static int init_scsi(struct cxlflash_cfg *cfg)
+{
+ struct pci_dev *pdev = cfg->dev;
+ int rc = 0;
+
+ rc = scsi_add_host(cfg->host, &pdev->dev);
+ if (rc) {
+ dev_err(&pdev->dev, "%s: scsi_add_host failed (rc=%d)\n",
+ __func__, rc);
+ goto out;
+ }
+
+ scsi_scan_host(cfg->host);
+
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * set_port_online() - transitions the specified host FC port to online state
+ * @fc_regs: Top of MMIO region defined for specified port.
+ *
+ * The provided MMIO region must be mapped prior to call. Online state means
+ * that the FC link layer has synced, completed the handshaking process, and
+ * is ready for login to start.
+ */
+static void set_port_online(u64 *fc_regs)
+{
+ u64 cmdcfg;
+
+ cmdcfg = readq_be(&fc_regs[FC_MTIP_CMDCONFIG / 8]);
+ cmdcfg &= (~FC_MTIP_CMDCONFIG_OFFLINE); /* clear OFF_LINE */
+ cmdcfg |= (FC_MTIP_CMDCONFIG_ONLINE); /* set ON_LINE */
+ writeq_be(cmdcfg, &fc_regs[FC_MTIP_CMDCONFIG / 8]);
+}
+
+/**
+ * set_port_offline() - transitions the specified host FC port to offline state
+ * @fc_regs: Top of MMIO region defined for specified port.
+ *
+ * The provided MMIO region must be mapped prior to call.
+ */
+static void set_port_offline(u64 *fc_regs)
+{
+ u64 cmdcfg;
+
+ cmdcfg = readq_be(&fc_regs[FC_MTIP_CMDCONFIG / 8]);
+ cmdcfg &= (~FC_MTIP_CMDCONFIG_ONLINE); /* clear ON_LINE */
+ cmdcfg |= (FC_MTIP_CMDCONFIG_OFFLINE); /* set OFF_LINE */
+ writeq_be(cmdcfg, &fc_regs[FC_MTIP_CMDCONFIG / 8]);
+}
+
+/**
+ * wait_port_online() - waits for the specified host FC port come online
+ * @fc_regs: Top of MMIO region defined for specified port.
+ * @delay_us: Number of microseconds to delay between reading port status.
+ * @nretry: Number of cycles to retry reading port status.
+ *
+ * The provided MMIO region must be mapped prior to call. This will timeout
+ * when the cable is not plugged in.
+ *
+ * Return:
+ * TRUE (1) when the specified port is online
+ * FALSE (0) when the specified port fails to come online after timeout
+ * -EINVAL when @delay_us is less than 1000
+ */
+static int wait_port_online(u64 *fc_regs, u32 delay_us, u32 nretry)
+{
+ u64 status;
+
+ if (delay_us < 1000) {
+ pr_err("%s: invalid delay specified %d\n", __func__, delay_us);
+ return -EINVAL;
+ }
+
+ do {
+ msleep(delay_us / 1000);
+ status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+ } while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_ONLINE &&
+ nretry--);
+
+ return ((status & FC_MTIP_STATUS_MASK) == FC_MTIP_STATUS_ONLINE);
+}
+
+/**
+ * wait_port_offline() - waits for the specified host FC port go offline
+ * @fc_regs: Top of MMIO region defined for specified port.
+ * @delay_us: Number of microseconds to delay between reading port status.
+ * @nretry: Number of cycles to retry reading port status.
+ *
+ * The provided MMIO region must be mapped prior to call.
+ *
+ * Return:
+ * TRUE (1) when the specified port is offline
+ * FALSE (0) when the specified port fails to go offline after timeout
+ * -EINVAL when @delay_us is less than 1000
+ */
+static int wait_port_offline(u64 *fc_regs, u32 delay_us, u32 nretry)
+{
+ u64 status;
+
+ if (delay_us < 1000) {
+ pr_err("%s: invalid delay specified %d\n", __func__, delay_us);
+ return -EINVAL;
+ }
+
+ do {
+ msleep(delay_us / 1000);
+ status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+ } while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_OFFLINE &&
+ nretry--);
+
+ return ((status & FC_MTIP_STATUS_MASK) == FC_MTIP_STATUS_OFFLINE);
+}
+
+/**
+ * afu_set_wwpn() - configures the WWPN for the specified host FC port
+ * @afu: AFU associated with the host that owns the specified FC port.
+ * @port: Port number being configured.
+ * @fc_regs: Top of MMIO region defined for specified port.
+ * @wwpn: The world-wide-port-number previously discovered for port.
+ *
+ * The provided MMIO region must be mapped prior to call. As part of the
+ * sequence to configure the WWPN, the port is toggled offline and then back
+ * online. This toggling action can cause this routine to delay up to a few
+ * seconds. When configured to use the internal LUN feature of the AFU, a
+ * failure to come online is overridden.
+ *
+ * Return:
+ * 0 when the WWPN is successfully written and the port comes back online
+ * -1 when the port fails to go offline or come back up online
+ */
+static int afu_set_wwpn(struct afu *afu, int port, u64 *fc_regs, u64 wwpn)
+{
+ int ret = 0;
+
+ set_port_offline(fc_regs);
+
+ if (!wait_port_offline(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
+ FC_PORT_STATUS_RETRY_CNT)) {
+ pr_debug("%s: wait on port %d to go offline timed out\n",
+ __func__, port);
+ ret = -1; /* but continue on to leave the port back online */
+ }
+
+ if (ret == 0)
+ writeq_be(wwpn, &fc_regs[FC_PNAME / 8]);
+
+ set_port_online(fc_regs);
+
+ if (!wait_port_online(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
+ FC_PORT_STATUS_RETRY_CNT)) {
+ pr_debug("%s: wait on port %d to go online timed out\n",
+ __func__, port);
+ ret = -1;
+
+ /*
+ * Override for internal lun!!!
+ */
+ if (afu->internal_lun) {
+ pr_debug("%s: Overriding port %d online timeout!!!\n",
+ __func__, port);
+ ret = 0;
+ }
+ }
+
+ pr_debug("%s: returning rc=%d\n", __func__, ret);
+
+ return ret;
+}
+
+/**
+ * afu_link_reset() - resets the specified host FC port
+ * @afu: AFU associated with the host that owns the specified FC port.
+ * @port: Port number being configured.
+ * @fc_regs: Top of MMIO region defined for specified port.
+ *
+ * The provided MMIO region must be mapped prior to call. The sequence to
+ * reset the port involves toggling it offline and then back online. This
+ * action can cause this routine to delay up to a few seconds. An effort
+ * is made to maintain link with the device by switching to host to use
+ * the alternate port exclusively while the reset takes place.
+ * failure to come online is overridden.
+ */
+static void afu_link_reset(struct afu *afu, int port, u64 *fc_regs)
+{
+ u64 port_sel;
+
+ /* first switch the AFU to the other links, if any */
+ port_sel = readq_be(&afu->afu_map->global.regs.afu_port_sel);
+ port_sel &= ~(1ULL << port);
+ writeq_be(port_sel, &afu->afu_map->global.regs.afu_port_sel);
+ cxlflash_afu_sync(afu, 0, 0, AFU_GSYNC);
+
+ set_port_offline(fc_regs);
+ if (!wait_port_offline(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
+ FC_PORT_STATUS_RETRY_CNT))
+ pr_err("%s: wait on port %d to go offline timed out\n",
+ __func__, port);
+
+ set_port_online(fc_regs);
+ if (!wait_port_online(fc_regs, FC_PORT_STATUS_RETRY_INTERVAL_US,
+ FC_PORT_STATUS_RETRY_CNT))
+ pr_err("%s: wait on port %d to go online timed out\n",
+ __func__, port);
+
+ /* switch back to include this port */
+ port_sel |= (1ULL << port);
+ writeq_be(port_sel, &afu->afu_map->global.regs.afu_port_sel);
+ cxlflash_afu_sync(afu, 0, 0, AFU_GSYNC);
+
+ pr_debug("%s: returning port_sel=%lld\n", __func__, port_sel);
+}
+
+/*
+ * Asynchronous interrupt information table
+ */
+static const struct asyc_intr_info ainfo[] = {
+ {SISL_ASTATUS_FC0_OTHER, "other error", 0, CLR_FC_ERROR | LINK_RESET},
+ {SISL_ASTATUS_FC0_LOGO, "target initiated LOGO", 0, 0},
+ {SISL_ASTATUS_FC0_CRC_T, "CRC threshold exceeded", 0, LINK_RESET},
+ {SISL_ASTATUS_FC0_LOGI_R, "login timed out, retrying", 0, 0},
+ {SISL_ASTATUS_FC0_LOGI_F, "login failed", 0, CLR_FC_ERROR},
+ {SISL_ASTATUS_FC0_LOGI_S, "login succeeded", 0, 0},
+ {SISL_ASTATUS_FC0_LINK_DN, "link down", 0, 0},
+ {SISL_ASTATUS_FC0_LINK_UP, "link up", 0, 0},
+ {SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET},
+ {SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0},
+ {SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET},
+ {SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, 0},
+ {SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR},
+ {SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, 0},
+ {SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0},
+ {SISL_ASTATUS_FC1_LINK_UP, "link up", 1, 0},
+ {0x0, "", 0, 0} /* terminator */
+};
+
+/**
+ * find_ainfo() - locates and returns asynchronous interrupt information
+ * @status: Status code set by AFU on error.
+ *
+ * Return: The located information or NULL when the status code is invalid.
+ */
+static const struct asyc_intr_info *find_ainfo(u64 status)
+{
+ const struct asyc_intr_info *info;
+
+ for (info = &ainfo[0]; info->status; info++)
+ if (info->status == status)
+ return info;
+
+ return NULL;
+}
+
+/**
+ * afu_err_intr_init() - clears and initializes the AFU for error interrupts
+ * @afu: AFU associated with the host.
+ */
+static void afu_err_intr_init(struct afu *afu)
+{
+ int i;
+ u64 reg;
+
+ /* global async interrupts: AFU clears afu_ctrl on context exit
+ * if async interrupts were sent to that context. This prevents
+ * the AFU form sending further async interrupts when
+ * there is
+ * nobody to receive them.
+ */
+
+ /* mask all */
+ writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_mask);
+ /* set LISN# to send and point to master context */
+ reg = ((u64) (((afu->ctx_hndl << 8) | SISL_MSI_ASYNC_ERROR)) << 40);
+
+ if (afu->internal_lun)
+ reg |= 1; /* Bit 63 indicates local lun */
+ writeq_be(reg, &afu->afu_map->global.regs.afu_ctrl);
+ /* clear all */
+ writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_clear);
+ /* unmask bits that are of interest */
+ /* note: afu can send an interrupt after this step */
+ writeq_be(SISL_ASTATUS_MASK, &afu->afu_map->global.regs.aintr_mask);
+ /* clear again in case a bit came on after previous clear but before */
+ /* unmask */
+ writeq_be(-1ULL, &afu->afu_map->global.regs.aintr_clear);
+
+ /* Clear/Set internal lun bits */
+ reg = readq_be(&afu->afu_map->global.fc_regs[0][FC_CONFIG2 / 8]);
+ reg &= SISL_FC_INTERNAL_MASK;
+ if (afu->internal_lun)
+ reg |= ((u64)(afu->internal_lun - 1) << SISL_FC_INTERNAL_SHIFT);
+ writeq_be(reg, &afu->afu_map->global.fc_regs[0][FC_CONFIG2 / 8]);
+
+ /* now clear FC errors */
+ for (i = 0; i < NUM_FC_PORTS; i++) {
+ writeq_be(0xFFFFFFFFU,
+ &afu->afu_map->global.fc_regs[i][FC_ERROR / 8]);
+ writeq_be(0, &afu->afu_map->global.fc_regs[i][FC_ERRCAP / 8]);
+ }
+
+ /* sync interrupts for master's IOARRIN write */
+ /* note that unlike asyncs, there can be no pending sync interrupts */
+ /* at this time (this is a fresh context and master has not written */
+ /* IOARRIN yet), so there is nothing to clear. */
+
+ /* set LISN#, it is always sent to the context that wrote IOARRIN */
+ writeq_be(SISL_MSI_SYNC_ERROR, &afu->host_map->ctx_ctrl);
+ writeq_be(SISL_ISTATUS_MASK, &afu->host_map->intr_mask);
+}
+
+/**
+ * cxlflash_sync_err_irq() - interrupt handler for synchronous errors
+ * @irq: Interrupt number.
+ * @data: Private data provided at interrupt registration, the AFU.
+ *
+ * Return: Always return IRQ_HANDLED.
+ */
+static irqreturn_t cxlflash_sync_err_irq(int irq, void *data)
+{
+ struct afu *afu = (struct afu *)data;
+ u64 reg;
+ u64 reg_unmasked;
+
+ reg = readq_be(&afu->host_map->intr_status);
+ reg_unmasked = (reg & SISL_ISTATUS_UNMASK);
+
+ if (reg_unmasked == 0UL) {
+ pr_err("%s: %llX: spurious interrupt, intr_status %016llX\n",
+ __func__, (u64)afu, reg);
+ goto cxlflash_sync_err_irq_exit;
+ }
+
+ pr_err("%s: %llX: unexpected interrupt, intr_status %016llX\n",
+ __func__, (u64)afu, reg);
+
+ writeq_be(reg_unmasked, &afu->host_map->intr_clear);
+
+cxlflash_sync_err_irq_exit:
+ pr_debug("%s: returning rc=%d\n", __func__, IRQ_HANDLED);
+ return IRQ_HANDLED;
+}
+
+/**
+ * cxlflash_rrq_irq() - interrupt handler for read-response queue (normal path)
+ * @irq: Interrupt number.
+ * @data: Private data provided at interrupt registration, the AFU.
+ *
+ * Return: Always return IRQ_HANDLED.
+ */
+static irqreturn_t cxlflash_rrq_irq(int irq, void *data)
+{
+ struct afu *afu = (struct afu *)data;
+ struct afu_cmd *cmd;
+ bool toggle = afu->toggle;
+ u64 entry,
+ *hrrq_start = afu->hrrq_start,
+ *hrrq_end = afu->hrrq_end,
+ *hrrq_curr = afu->hrrq_curr;
+
+ /* Process however many RRQ entries that are ready */
+ while (true) {
+ entry = *hrrq_curr;
+
+ if ((entry & SISL_RESP_HANDLE_T_BIT) != toggle)
+ break;
+
+ cmd = (struct afu_cmd *)(entry & ~SISL_RESP_HANDLE_T_BIT);
+ cmd_complete(cmd);
+
+ /* Advance to next entry or wrap and flip the toggle bit */
+ if (hrrq_curr < hrrq_end)
+ hrrq_curr++;
+ else {
+ hrrq_curr = hrrq_start;
+ toggle ^= SISL_RESP_HANDLE_T_BIT;
+ }
+ }
+
+ afu->hrrq_curr = hrrq_curr;
+ afu->toggle = toggle;
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * cxlflash_async_err_irq() - interrupt handler for asynchronous errors
+ * @irq: Interrupt number.
+ * @data: Private data provided at interrupt registration, the AFU.
+ *
+ * Return: Always return IRQ_HANDLED.
+ */
+static irqreturn_t cxlflash_async_err_irq(int irq, void *data)
+{
+ struct afu *afu = (struct afu *)data;
+ struct cxlflash_cfg *cfg;
+ u64 reg_unmasked;
+ const struct asyc_intr_info *info;
+ struct sisl_global_map *global = &afu->afu_map->global;
+ u64 reg;
+ u8 port;
+ int i;
+
+ cfg = afu->parent;
+
+ reg = readq_be(&global->regs.aintr_status);
+ reg_unmasked = (reg & SISL_ASTATUS_UNMASK);
+
+ if (reg_unmasked == 0) {
+ pr_err("%s: spurious interrupt, aintr_status 0x%016llX\n",
+ __func__, reg);
+ goto out;
+ }
+
+ /* it is OK to clear AFU status before FC_ERROR */
+ writeq_be(reg_unmasked, &global->regs.aintr_clear);
+
+ /* check each bit that is on */
+ for (i = 0; reg_unmasked; i++, reg_unmasked = (reg_unmasked >> 1)) {
+ info = find_ainfo(1ULL << i);
+ if ((reg_unmasked & 0x1) || !info)
+ continue;
+
+ port = info->port;
+
+ pr_err("%s: FC Port %d -> %s, fc_status 0x%08llX\n",
+ __func__, port, info->desc,
+ readq_be(&global->fc_regs[port][FC_STATUS / 8]));
+
+ /*
+ * do link reset first, some OTHER errors will set FC_ERROR
+ * again if cleared before or w/o a reset
+ */
+ if (info->action & LINK_RESET) {
+ pr_err("%s: FC Port %d: resetting link\n",
+ __func__, port);
+ cfg->lr_state = LINK_RESET_REQUIRED;
+ cfg->lr_port = port;
+ schedule_work(&cfg->work_q);
+ }
+
+ if (info->action & CLR_FC_ERROR) {
+ reg = readq_be(&global->fc_regs[port][FC_ERROR / 8]);
+
+ /*
+ * since all errors are unmasked, FC_ERROR and FC_ERRCAP
+ * should be the same and tracing one is sufficient.
+ */
+
+ pr_err("%s: fc %d: clearing fc_error 0x%08llX\n",
+ __func__, port, reg);
+
+ writeq_be(reg, &global->fc_regs[port][FC_ERROR / 8]);
+ writeq_be(0, &global->fc_regs[port][FC_ERRCAP / 8]);
+ }
+ }
+
+out:
+ pr_debug("%s: returning rc=%d, afu=%p\n", __func__, IRQ_HANDLED, afu);
+ return IRQ_HANDLED;
+}
+
+/**
+ * start_context() - starts the master context
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Return: A success or failure value from CXL services.
+ */
+static int start_context(struct cxlflash_cfg *cfg)
+{
+ int rc = 0;
+
+ rc = cxl_start_context(cfg->mcctx,
+ cfg->afu->work.work_element_descriptor,
+ NULL);
+
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * read_vpd() - obtains the WWPNs from VPD
+ * @cxlflash: Internal structure associated with the host.
+ * @wwpn: Array of size NUM_FC_PORTS to pass back WWPNs
+ *
+ * Return:
+ * 0 on success
+ * -ENODEV when VPD or WWPN keywords not found
+ */
+static int read_vpd(struct cxlflash_cfg *cfg, u64 wwpn[])
+{
+ struct pci_dev *dev = cfg->parent_dev;
+ int rc = 0;
+ int ro_start, ro_size, i, j, k;
+ ssize_t vpd_size;
+ char vpd_data[CXLFLASH_VPD_LEN];
+ char tmp_buf[WWPN_BUF_LEN] = { 0 };
+ char *wwpn_vpd_tags[NUM_FC_PORTS] = { "V5", "V6" };
+
+ /* Get the VPD data from the device */
+ vpd_size = pci_read_vpd(dev, 0, sizeof(vpd_data), vpd_data);
+ if (unlikely(vpd_size <= 0)) {
+ pr_err("%s: Unable to read VPD (size = %ld)\n",
+ __func__, vpd_size);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ /* Get the read only section offset */
+ ro_start = pci_vpd_find_tag(vpd_data, 0, vpd_size,
+ PCI_VPD_LRDT_RO_DATA);
+ if (unlikely(ro_start < 0)) {
+ pr_err("%s: VPD Read-only data not found\n", __func__);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ /* Get the read only section size, cap when extends beyond read VPD */
+ ro_size = pci_vpd_lrdt_size(&vpd_data[ro_start]);
+ j = ro_size;
+ i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
+ if (unlikely((i + j) > vpd_size)) {
+ pr_debug("%s: Might need to read more VPD (%d > %ld)\n",
+ __func__, (i + j), vpd_size);
+ ro_size = vpd_size - i;
+ }
+
+ /*
+ * Find the offset of the WWPN tag within the read only
+ * VPD data and validate the found field (partials are
+ * no good to us). Convert the ASCII data to an integer
+ * value. Note that we must copy to a temporary buffer
+ * because the conversion service requires that the ASCII
+ * string be terminated.
+ */
+ for (k = 0; k < NUM_FC_PORTS; k++) {
+ j = ro_size;
+ i = ro_start + PCI_VPD_LRDT_TAG_SIZE;
+
+ i = pci_vpd_find_info_keyword(vpd_data, i, j, wwpn_vpd_tags[k]);
+ if (unlikely(i < 0)) {
+ pr_err("%s: Port %d WWPN not found in VPD\n",
+ __func__, k);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ j = pci_vpd_info_field_size(&vpd_data[i]);
+ i += PCI_VPD_INFO_FLD_HDR_SIZE;
+ if (unlikely((i + j > vpd_size) || (j != WWPN_LEN))) {
+ pr_err("%s: Port %d WWPN incomplete or VPD corrupt\n",
+ __func__, k);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ memcpy(tmp_buf, &vpd_data[i], WWPN_LEN);
+ rc = kstrtoul(tmp_buf, WWPN_LEN, (ulong *)&wwpn[k]);
+ if (unlikely(rc)) {
+ pr_err("%s: Fail to convert port %d WWPN to integer\n",
+ __func__, k);
+ rc = -ENODEV;
+ goto out;
+ }
+ }
+
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_context_reset() - timeout handler for AFU commands
+ * @cmd: AFU command that timed out.
+ *
+ * Sends a reset to the AFU.
+ */
+void cxlflash_context_reset(struct afu_cmd *cmd)
+{
+ int nretry = 0;
+ u64 rrin = 0x1;
+ u64 room = 0;
+ struct afu *afu = cmd->parent;
+ ulong lock_flags;
+
+ pr_debug("%s: cmd=%p\n", __func__, cmd);
+
+ spin_lock_irqsave(&cmd->slock, lock_flags);
+
+ /* Already completed? */
+ if (cmd->sa.host_use_b[0] & B_DONE) {
+ spin_unlock_irqrestore(&cmd->slock, lock_flags);
+ return;
+ }
+
+ cmd->sa.host_use_b[0] |= (B_DONE | B_ERROR | B_TIMEOUT);
+ spin_unlock_irqrestore(&cmd->slock, lock_flags);
+
+ /*
+ * We really want to send this reset at all costs, so spread
+ * out wait time on successive retries for available room.
+ */
+ do {
+ room = readq_be(&afu->host_map->cmd_room);
+ atomic64_set(&afu->room, room);
+ if (room)
+ goto write_rrin;
+ udelay(nretry);
+ } while (nretry++ < MC_ROOM_RETRY_CNT);
+
+ pr_err("%s: no cmd_room to send reset\n", __func__);
+ return;
+
+write_rrin:
+ nretry = 0;
+ writeq_be(rrin, &afu->host_map->ioarrin);
+ do {
+ rrin = readq_be(&afu->host_map->ioarrin);
+ if (rrin != 0x1)
+ break;
+ /* Double delay each time */
+ udelay(2 ^ nretry);
+ } while (nretry++ < MC_ROOM_RETRY_CNT);
+}
+
+/**
+ * init_pcr() - initialize the provisioning and control registers
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Also sets up fast access to the mapped registers and initializes AFU
+ * command fields that never change.
+ */
+void init_pcr(struct cxlflash_cfg *cfg)
+{
+ struct afu *afu = cfg->afu;
+ struct sisl_ctrl_map *ctrl_map;
+ int i;
+
+ for (i = 0; i < MAX_CONTEXT; i++) {
+ ctrl_map = &afu->afu_map->ctrls[i].ctrl;
+ /* disrupt any clients that could be running */
+ /* e. g. clients that survived a master restart */
+ writeq_be(0, &ctrl_map->rht_start);
+ writeq_be(0, &ctrl_map->rht_cnt_id);
+ writeq_be(0, &ctrl_map->ctx_cap);
+ }
+
+ /* copy frequently used fields into afu */
+ afu->ctx_hndl = (u16) cxl_process_element(cfg->mcctx);
+ /* ctx_hndl is 16 bits in CAIA */
+ afu->host_map = &afu->afu_map->hosts[afu->ctx_hndl].host;
+ afu->ctrl_map = &afu->afu_map->ctrls[afu->ctx_hndl].ctrl;
+
+ /* Program the Endian Control for the master context */
+ writeq_be(SISL_ENDIAN_CTRL, &afu->host_map->endian_ctrl);
+
+ /* initialize cmd fields that never change */
+ for (i = 0; i < CXLFLASH_NUM_CMDS; i++) {
+ afu->cmd[i].rcb.ctx_id = afu->ctx_hndl;
+ afu->cmd[i].rcb.msi = SISL_MSI_RRQ_UPDATED;
+ afu->cmd[i].rcb.rrq = 0x0;
+ }
+}
+
+/**
+ * init_global() - initialize AFU global registers
+ * @cxlflash: Internal structure associated with the host.
+ */
+int init_global(struct cxlflash_cfg *cfg)
+{
+ struct afu *afu = cfg->afu;
+ u64 wwpn[NUM_FC_PORTS]; /* wwpn of AFU ports */
+ int i = 0, num_ports = 0;
+ int rc = 0;
+ u64 reg;
+
+ rc = read_vpd(cfg, &wwpn[0]);
+ if (rc) {
+ pr_err("%s: could not read vpd rc=%d\n", __func__, rc);
+ goto out;
+ }
+
+ pr_debug("%s: wwpn0=0x%llX wwpn1=0x%llX\n", __func__, wwpn[0], wwpn[1]);
+
+ /* set up RRQ in AFU for master issued cmds */
+ writeq_be((u64) afu->hrrq_start, &afu->host_map->rrq_start);
+ writeq_be((u64) afu->hrrq_end, &afu->host_map->rrq_end);
+
+ /* AFU configuration */
+ reg = readq_be(&afu->afu_map->global.regs.afu_config);
+ reg |= SISL_AFUCONF_AR_ALL|SISL_AFUCONF_ENDIAN;
+ /* enable all auto retry options and control endianness */
+ /* leave others at default: */
+ /* CTX_CAP write protected, mbox_r does not clear on read and */
+ /* checker on if dual afu */
+ writeq_be(reg, &afu->afu_map->global.regs.afu_config);
+
+ /* global port select: select either port */
+ if (afu->internal_lun) {
+ /* only use port 0 */
+ writeq_be(PORT0, &afu->afu_map->global.regs.afu_port_sel);
+ num_ports = NUM_FC_PORTS - 1;
+ } else {
+ writeq_be(BOTH_PORTS, &afu->afu_map->global.regs.afu_port_sel);
+ num_ports = NUM_FC_PORTS;
+ }
+
+ for (i = 0; i < num_ports; i++) {
+ /* unmask all errors (but they are still masked at AFU) */
+ writeq_be(0, &afu->afu_map->global.fc_regs[i][FC_ERRMSK / 8]);
+ /* clear CRC error cnt & set a threshold */
+ (void)readq_be(&afu->afu_map->global.
+ fc_regs[i][FC_CNT_CRCERR / 8]);
+ writeq_be(MC_CRC_THRESH, &afu->afu_map->global.fc_regs[i]
+ [FC_CRC_THRESH / 8]);
+
+ /* set WWPNs. If already programmed, wwpn[i] is 0 */
+ if (wwpn[i] != 0 &&
+ afu_set_wwpn(afu, i,
+ &afu->afu_map->global.fc_regs[i][0],
+ wwpn[i])) {
+ pr_err("%s: failed to set WWPN on port %d\n",
+ __func__, i);
+ rc = -EIO;
+ goto out;
+ }
+ /* Programming WWPN back to back causes additional
+ * offline/online transitions and a PLOGI
+ */
+ msleep(100);
+
+ }
+
+ /* set up master's own CTX_CAP to allow real mode, host translation */
+ /* tbls, afu cmds and read/write GSCSI cmds. */
+ /* First, unlock ctx_cap write by reading mbox */
+ (void)readq_be(&afu->ctrl_map->mbox_r); /* unlock ctx_cap */
+ writeq_be((SISL_CTX_CAP_REAL_MODE | SISL_CTX_CAP_HOST_XLATE |
+ SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD |
+ SISL_CTX_CAP_AFU_CMD | SISL_CTX_CAP_GSCSI_CMD),
+ &afu->ctrl_map->ctx_cap);
+ /* init heartbeat */
+ afu->hb = readq_be(&afu->afu_map->global.regs.afu_hb);
+
+out:
+ return rc;
+}
+
+/**
+ * start_afu() - initializes and starts the AFU
+ * @cxlflash: Internal structure associated with the host.
+ */
+static int start_afu(struct cxlflash_cfg *cfg)
+{
+ struct afu *afu = cfg->afu;
+ struct afu_cmd *cmd;
+
+ int i = 0;
+ int rc = 0;
+
+ for (i = 0; i < CXLFLASH_NUM_CMDS; i++) {
+ cmd = &afu->cmd[i];
+
+ init_completion(&cmd->cevent);
+ spin_lock_init(&cmd->slock);
+ cmd->parent = afu;
+ }
+
+ init_pcr(cfg);
+
+ /* initialize RRQ pointers */
+ afu->hrrq_start = &afu->rrq_entry[0];
+ afu->hrrq_end = &afu->rrq_entry[NUM_RRQ_ENTRY - 1];
+ afu->hrrq_curr = afu->hrrq_start;
+ afu->toggle = 1;
+
+ rc = init_global(cfg);
+
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * init_mc() - create and register as the master context
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Return:
+ * 0 on success
+ * -ENOMEM when unable to obtain a context from CXL services
+ * A failure value from CXL services.
+ */
+static int init_mc(struct cxlflash_cfg *cfg)
+{
+ struct cxl_context *ctx;
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ int rc = 0;
+ enum undo_level level;
+
+ ctx = cxl_get_context(cfg->dev);
+ if (unlikely(!ctx))
+ return -ENOMEM;
+ cfg->mcctx = ctx;
+
+ /* Set it up as a master with the CXL */
+ cxl_set_master(ctx);
+
+ /* During initialization reset the AFU to start from a clean slate */
+ rc = cxl_afu_reset(cfg->mcctx);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: initial AFU reset failed rc=%d\n",
+ __func__, rc);
+ level = RELEASE_CONTEXT;
+ goto out;
+ }
+
+ rc = cxl_allocate_afu_irqs(ctx, 3);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: call to allocate_afu_irqs failed rc=%d!\n",
+ __func__, rc);
+ level = RELEASE_CONTEXT;
+ goto out;
+ }
+
+ rc = cxl_map_afu_irq(ctx, 1, cxlflash_sync_err_irq, afu,
+ "SISL_MSI_SYNC_ERROR");
+ if (unlikely(rc <= 0)) {
+ dev_err(dev, "%s: IRQ 1 (SISL_MSI_SYNC_ERROR) map failed!\n",
+ __func__);
+ level = FREE_IRQ;
+ goto out;
+ }
+
+ rc = cxl_map_afu_irq(ctx, 2, cxlflash_rrq_irq, afu,
+ "SISL_MSI_RRQ_UPDATED");
+ if (unlikely(rc <= 0)) {
+ dev_err(dev, "%s: IRQ 2 (SISL_MSI_RRQ_UPDATED) map failed!\n",
+ __func__);
+ level = UNMAP_ONE;
+ goto out;
+ }
+
+ rc = cxl_map_afu_irq(ctx, 3, cxlflash_async_err_irq, afu,
+ "SISL_MSI_ASYNC_ERROR");
+ if (unlikely(rc <= 0)) {
+ dev_err(dev, "%s: IRQ 3 (SISL_MSI_ASYNC_ERROR) map failed!\n",
+ __func__);
+ level = UNMAP_TWO;
+ goto out;
+ }
+
+ rc = 0;
+
+ /* This performs the equivalent of the CXL_IOCTL_START_WORK.
+ * The CXL_IOCTL_GET_PROCESS_ELEMENT is implicit in the process
+ * element (pe) that is embedded in the context (ctx)
+ */
+ rc = start_context(cfg);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: start context failed rc=%d\n", __func__, rc);
+ level = UNMAP_THREE;
+ goto out;
+ }
+ret:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+out:
+ term_mc(cfg, level);
+ goto ret;
+}
+
+/**
+ * init_afu() - setup as master context and start AFU
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * This routine is a higher level of control for configuring the
+ * AFU on probe and reset paths.
+ *
+ * Return:
+ * 0 on success
+ * -ENOMEM when unable to map the AFU MMIO space
+ * A failure value from internal services.
+ */
+static int init_afu(struct cxlflash_cfg *cfg)
+{
+ u64 reg;
+ int rc = 0;
+ struct afu *afu = cfg->afu;
+ struct device *dev = &cfg->dev->dev;
+
+ cxl_perst_reloads_same_image(cfg->cxl_afu, true);
+
+ rc = init_mc(cfg);
+ if (rc) {
+ dev_err(dev, "%s: call to init_mc failed, rc=%d!\n",
+ __func__, rc);
+ goto err1;
+ }
+
+ /* Map the entire MMIO space of the AFU.
+ */
+ afu->afu_map = cxl_psa_map(cfg->mcctx);
+ if (!afu->afu_map) {
+ rc = -ENOMEM;
+ term_mc(cfg, UNDO_START);
+ dev_err(dev, "%s: call to cxl_psa_map failed!\n", __func__);
+ goto err1;
+ }
+
+ /* don't byte reverse on reading afu_version, else the string form */
+ /* will be backwards */
+ reg = afu->afu_map->global.regs.afu_version;
+ memcpy(afu->version, ®, 8);
+ afu->interface_version =
+ readq_be(&afu->afu_map->global.regs.interface_version);
+ pr_debug("%s: afu version %s, interface version 0x%llX\n",
+ __func__, afu->version, afu->interface_version);
+
+ rc = start_afu(cfg);
+ if (rc) {
+ dev_err(dev, "%s: call to start_afu failed, rc=%d!\n",
+ __func__, rc);
+ term_mc(cfg, UNDO_START);
+ cxl_psa_unmap((void *)afu->afu_map);
+ afu->afu_map = NULL;
+ goto err1;
+ }
+
+ afu_err_intr_init(cfg->afu);
+ atomic64_set(&afu->room, readq_be(&afu->host_map->cmd_room));
+
+ /* Restore the LUN mappings */
+ cxlflash_restore_luntable(cfg);
+err1:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_send_cmd() - sends an AFU command
+ * @afu: AFU associated with the host.
+ * @cmd: AFU command to send.
+ *
+ * Return:
+ * 0 on success
+ * -1 on failure
+ */
+int cxlflash_send_cmd(struct afu *afu, struct afu_cmd *cmd)
+{
+ struct cxlflash_cfg *cfg = afu->parent;
+ int nretry = 0;
+ int rc = 0;
+ u64 room;
+ long newval;
+
+ /*
+ * This routine is used by critical users such an AFU sync and to
+ * send a task management function (TMF). Thus we want to retry a
+ * bit before returning an error. To avoid the performance penalty
+ * of MMIO, we spread the update of 'room' over multiple commands.
+ */
+retry:
+ newval = atomic64_dec_if_positive(&afu->room);
+ if (!newval) {
+ do {
+ room = readq_be(&afu->host_map->cmd_room);
+ atomic64_set(&afu->room, room);
+ if (room)
+ goto write_ioarrin;
+ udelay(nretry);
+ } while (nretry++ < MC_ROOM_RETRY_CNT);
+
+ pr_err("%s: no cmd_room to send 0x%X\n",
+ __func__, cmd->rcb.cdb[0]);
+
+ goto no_room;
+ } else if (unlikely(newval < 0)) {
+ /* This should be rare. i.e. Only if two threads race and
+ * decrement before the MMIO read is done. In this case
+ * just benefit from the other thread having updated
+ * afu->room.
+ */
+ if (nretry++ < MC_ROOM_RETRY_CNT) {
+ udelay(nretry);
+ goto retry;
+ }
+
+ goto no_room;
+ }
+
+write_ioarrin:
+ writeq_be((u64)&cmd->rcb, &afu->host_map->ioarrin);
+out:
+ pr_debug("%s: cmd=%p len=%d ea=%p rc=%d\n", __func__, cmd,
+ cmd->rcb.data_len, (void *)cmd->rcb.data_ea, rc);
+ return rc;
+
+no_room:
+ afu->read_room = true;
+ schedule_work(&cfg->work_q);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+}
+
+/**
+ * cxlflash_wait_resp() - polls for a response or timeout to a sent AFU command
+ * @afu: AFU associated with the host.
+ * @cmd: AFU command that was sent.
+ */
+void cxlflash_wait_resp(struct afu *afu, struct afu_cmd *cmd)
+{
+ ulong timeout = jiffies + (cmd->rcb.timeout * 2 * HZ);
+
+ timeout = wait_for_completion_timeout(&cmd->cevent, timeout);
+ if (!timeout)
+ cxlflash_context_reset(cmd);
+
+ if (unlikely(cmd->sa.ioasc != 0))
+ pr_err("%s: CMD 0x%X failed, IOASC: flags 0x%X, afu_rc 0x%X, "
+ "scsi_rc 0x%X, fc_rc 0x%X\n", __func__, cmd->rcb.cdb[0],
+ cmd->sa.rc.flags, cmd->sa.rc.afu_rc, cmd->sa.rc.scsi_rc,
+ cmd->sa.rc.fc_rc);
+}
+
+/**
+ * cxlflash_afu_sync() - builds and sends an AFU sync command
+ * @afu: AFU associated with the host.
+ * @ctx_hndl_u: Identifies context requesting sync.
+ * @res_hndl_u: Identifies resource requesting sync.
+ * @mode: Type of sync to issue (lightweight, heavyweight, global).
+ *
+ * The AFU can only take 1 sync command at a time. This routine enforces this
+ * limitation by using a mutex to provide exlusive access to the AFU during
+ * the sync. This design point requires calling threads to not be on interrupt
+ * context due to the possibility of sleeping during concurrent sync operations.
+ *
+ * AFU sync operations are only necessary and allowed when the device is
+ * operating normally. When not operating normally, sync requests can occur as
+ * part of cleaning up resources associated with an adapter prior to removal.
+ * In this scenario, these requests are simply ignored (safe due to the AFU
+ * going away).
+ *
+ * Return:
+ * 0 on success
+ * -1 on failure
+ */
+int cxlflash_afu_sync(struct afu *afu, ctx_hndl_t ctx_hndl_u,
+ res_hndl_t res_hndl_u, u8 mode)
+{
+ struct cxlflash_cfg *cfg = afu->parent;
+ struct afu_cmd *cmd = NULL;
+ int rc = 0;
+ int retry_cnt = 0;
+ static DEFINE_MUTEX(sync_active);
+
+ if (cfg->state != STATE_NORMAL) {
+ pr_debug("%s: Sync not required! (%u)\n", __func__, cfg->state);
+ return 0;
+ }
+
+ mutex_lock(&sync_active);
+retry:
+ cmd = cxlflash_cmd_checkout(afu);
+ if (unlikely(!cmd)) {
+ retry_cnt++;
+ udelay(1000 * retry_cnt);
+ if (retry_cnt < MC_RETRY_CNT)
+ goto retry;
+ pr_err("%s: could not get a free command\n", __func__);
+ rc = -1;
+ goto out;
+ }
+
+ pr_debug("%s: afu=%p cmd=%p %d\n", __func__, afu, cmd, ctx_hndl_u);
+
+ memset(cmd->rcb.cdb, 0, sizeof(cmd->rcb.cdb));
+
+ cmd->rcb.req_flags = SISL_REQ_FLAGS_AFU_CMD;
+ cmd->rcb.port_sel = 0x0; /* NA */
+ cmd->rcb.lun_id = 0x0; /* NA */
+ cmd->rcb.data_len = 0x0;
+ cmd->rcb.data_ea = 0x0;
+ cmd->rcb.timeout = MC_AFU_SYNC_TIMEOUT;
+
+ cmd->rcb.cdb[0] = 0xC0; /* AFU Sync */
+ cmd->rcb.cdb[1] = mode;
+
+ /* The cdb is aligned, no unaligned accessors required */
+ *((u16 *)&cmd->rcb.cdb[2]) = swab16(ctx_hndl_u);
+ *((u32 *)&cmd->rcb.cdb[4]) = swab32(res_hndl_u);
+
+ rc = cxlflash_send_cmd(afu, cmd);
+ if (unlikely(rc))
+ goto out;
+
+ cxlflash_wait_resp(afu, cmd);
+
+ /* set on timeout */
+ if (unlikely((cmd->sa.ioasc != 0) ||
+ (cmd->sa.host_use_b[0] & B_ERROR)))
+ rc = -1;
+out:
+ mutex_unlock(&sync_active);
+ if (cmd)
+ cxlflash_cmd_checkin(cmd);
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_afu_reset() - resets the AFU
+ * @cxlflash: Internal structure associated with the host.
+ *
+ * Return:
+ * 0 on success
+ * A failure value from internal services.
+ */
+int cxlflash_afu_reset(struct cxlflash_cfg *cfg)
+{
+ int rc = 0;
+ /* Stop the context before the reset. Since the context is
+ * no longer available restart it after the reset is complete
+ */
+
+ term_afu(cfg);
+
+ rc = init_afu(cfg);
+
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_worker_thread() - work thread handler for the AFU
+ * @work: Work structure contained within cxlflash associated with host.
+ *
+ * Handles the following events:
+ * - Link reset which cannot be performed on interrupt context due to
+ * blocking up to a few seconds
+ * - Read AFU command room
+ */
+static void cxlflash_worker_thread(struct work_struct *work)
+{
+ struct cxlflash_cfg *cfg = container_of(work, struct cxlflash_cfg,
+ work_q);
+ struct afu *afu = cfg->afu;
+ int port;
+ ulong lock_flags;
+
+ /* Avoid MMIO if the device has failed */
+
+ if (cfg->state != STATE_NORMAL)
+ return;
+
+ spin_lock_irqsave(cfg->host->host_lock, lock_flags);
+
+ if (cfg->lr_state == LINK_RESET_REQUIRED) {
+ port = cfg->lr_port;
+ if (port < 0)
+ pr_err("%s: invalid port index %d\n", __func__, port);
+ else {
+ spin_unlock_irqrestore(cfg->host->host_lock,
+ lock_flags);
+
+ /* The reset can block... */
+ afu_link_reset(afu, port,
+ &afu->afu_map->
+ global.fc_regs[port][0]);
+ spin_lock_irqsave(cfg->host->host_lock, lock_flags);
+ }
+
+ cfg->lr_state = LINK_RESET_COMPLETE;
+ }
+
+ if (afu->read_room) {
+ atomic64_set(&afu->room, readq_be(&afu->host_map->cmd_room));
+ afu->read_room = false;
+ }
+
+ spin_unlock_irqrestore(cfg->host->host_lock, lock_flags);
+}
+
+/**
+ * cxlflash_probe() - PCI entry point to add host
+ * @pdev: PCI device associated with the host.
+ * @dev_id: PCI device id associated with device.
+ *
+ * Return: 0 on success / non-zero on failure
+ */
+static int cxlflash_probe(struct pci_dev *pdev,
+ const struct pci_device_id *dev_id)
+{
+ struct Scsi_Host *host;
+ struct cxlflash_cfg *cfg = NULL;
+ struct device *phys_dev;
+ struct dev_dependent_vals *ddv;
+ int rc = 0;
+
+ dev_dbg(&pdev->dev, "%s: Found CXLFLASH with IRQ: %d\n",
+ __func__, pdev->irq);
+
+ ddv = (struct dev_dependent_vals *)dev_id->driver_data;
+ driver_template.max_sectors = ddv->max_sectors;
+
+ host = scsi_host_alloc(&driver_template, sizeof(struct cxlflash_cfg));
+ if (!host) {
+ dev_err(&pdev->dev, "%s: call to scsi_host_alloc failed!\n",
+ __func__);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ host->max_id = CXLFLASH_MAX_NUM_TARGETS_PER_BUS;
+ host->max_lun = CXLFLASH_MAX_NUM_LUNS_PER_TARGET;
+ host->max_channel = NUM_FC_PORTS - 1;
+ host->unique_id = host->host_no;
+ host->max_cmd_len = CXLFLASH_MAX_CDB_LEN;
+
+ cfg = (struct cxlflash_cfg *)host->hostdata;
+ cfg->host = host;
+ rc = alloc_mem(cfg);
+ if (rc) {
+ dev_err(&pdev->dev, "%s: call to scsi_host_alloc failed!\n",
+ __func__);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ cfg->init_state = INIT_STATE_NONE;
+ cfg->dev = pdev;
+
+ /*
+ * The promoted LUNs move to the top of the LUN table. The rest stay
+ * on the bottom half. The bottom half grows from the end
+ * (index = 255), whereas the top half grows from the beginning
+ * (index = 0).
+ */
+ cfg->promote_lun_index = 0;
+ cfg->last_lun_index[0] = CXLFLASH_NUM_VLUNS/2 - 1;
+ cfg->last_lun_index[1] = CXLFLASH_NUM_VLUNS/2 - 1;
+
+ cfg->dev_id = (struct pci_device_id *)dev_id;
+ cfg->mcctx = NULL;
+
+ init_waitqueue_head(&cfg->tmf_waitq);
+ init_waitqueue_head(&cfg->limbo_waitq);
+
+ INIT_WORK(&cfg->work_q, cxlflash_worker_thread);
+ cfg->lr_state = LINK_RESET_INVALID;
+ cfg->lr_port = -1;
+ mutex_init(&cfg->ctx_tbl_list_mutex);
+ mutex_init(&cfg->ctx_recovery_mutex);
+ INIT_LIST_HEAD(&cfg->ctx_err_recovery);
+ INIT_LIST_HEAD(&cfg->lluns);
+
+ pci_set_drvdata(pdev, cfg);
+
+ /* Use the special service provided to look up the physical
+ * PCI device, since we are called on the probe of the virtual
+ * PCI host bus (vphb)
+ */
+ phys_dev = cxl_get_phys_dev(pdev);
+ if (!dev_is_pci(phys_dev)) {
+ pr_err("%s: not a pci dev\n", __func__);
+ rc = -ENODEV;
+ goto out_remove;
+ }
+ cfg->parent_dev = to_pci_dev(phys_dev);
+
+ cfg->cxl_afu = cxl_pci_to_afu(pdev);
+
+ rc = init_pci(cfg);
+ if (rc) {
+ dev_err(&pdev->dev, "%s: call to init_pci "
+ "failed rc=%d!\n", __func__, rc);
+ goto out_remove;
+ }
+ cfg->init_state = INIT_STATE_PCI;
+
+ rc = init_afu(cfg);
+ if (rc) {
+ dev_err(&pdev->dev, "%s: call to init_afu "
+ "failed rc=%d!\n", __func__, rc);
+ goto out_remove;
+ }
+ cfg->init_state = INIT_STATE_AFU;
+
+
+ rc = init_scsi(cfg);
+ if (rc) {
+ dev_err(&pdev->dev, "%s: call to init_scsi "
+ "failed rc=%d!\n", __func__, rc);
+ goto out_remove;
+ }
+ cfg->init_state = INIT_STATE_SCSI;
+
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+
+out_remove:
+ cxlflash_remove(pdev);
+ goto out;
+}
+
+/**
+ * cxlflash_pci_error_detected() - called when a PCI error is detected
+ * @pdev: PCI device struct.
+ * @state: PCI channel state.
+ *
+ * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
+ */
+static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ int rc = 0;
+ struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
+ struct device *dev = &cfg->dev->dev;
+
+ dev_dbg(dev, "%s: pdev=%p state=%u\n", __func__, pdev, state);
+
+ switch (state) {
+ case pci_channel_io_frozen:
+ cfg->state = STATE_LIMBO;
+
+ /* Turn off legacy I/O */
+ scsi_block_requests(cfg->host);
+ rc = cxlflash_mark_contexts_error(cfg);
+ if (unlikely(rc))
+ dev_err(dev, "%s: Failed to mark user contexts!(%d)\n",
+ __func__, rc);
+ term_mc(cfg, UNDO_START);
+ stop_afu(cfg);
+
+ return PCI_ERS_RESULT_NEED_RESET;
+ case pci_channel_io_perm_failure:
+ cfg->state = STATE_FAILTERM;
+ wake_up_all(&cfg->limbo_waitq);
+ scsi_unblock_requests(cfg->host);
+ return PCI_ERS_RESULT_DISCONNECT;
+ default:
+ break;
+ }
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * cxlflash_pci_slot_reset() - called when PCI slot has been reset
+ * @pdev: PCI device struct.
+ *
+ * This routine is called by the pci error recovery code after the PCI
+ * slot has been reset, just before we should resume normal operations.
+ *
+ * Return: PCI_ERS_RESULT_RECOVERED or PCI_ERS_RESULT_DISCONNECT
+ */
+static pci_ers_result_t cxlflash_pci_slot_reset(struct pci_dev *pdev)
+{
+ int rc = 0;
+ struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
+ struct device *dev = &cfg->dev->dev;
+
+ dev_dbg(dev, "%s: pdev=%p\n", __func__, pdev);
+
+ rc = init_afu(cfg);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: EEH recovery failed! (%d)\n", __func__, rc);
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * cxlflash_pci_resume() - called when normal operation can resume
+ * @pdev: PCI device struct
+ */
+static void cxlflash_pci_resume(struct pci_dev *pdev)
+{
+ struct cxlflash_cfg *cfg = pci_get_drvdata(pdev);
+ struct device *dev = &cfg->dev->dev;
+
+ dev_dbg(dev, "%s: pdev=%p\n", __func__, pdev);
+
+ cfg->state = STATE_NORMAL;
+ wake_up_all(&cfg->limbo_waitq);
+ scsi_unblock_requests(cfg->host);
+}
+
+static const struct pci_error_handlers cxlflash_err_handler = {
+ .error_detected = cxlflash_pci_error_detected,
+ .slot_reset = cxlflash_pci_slot_reset,
+ .resume = cxlflash_pci_resume,
+};
+
+/*
+ * PCI device structure
+ */
+static struct pci_driver cxlflash_driver = {
+ .name = CXLFLASH_NAME,
+ .id_table = cxlflash_pci_table,
+ .probe = cxlflash_probe,
+ .remove = cxlflash_remove,
+ .err_handler = &cxlflash_err_handler,
+};
+
+/**
+ * init_cxlflash() - module entry point
+ *
+ * Return: 0 on success / non-zero on failure
+ */
+static int __init init_cxlflash(void)
+{
+ pr_info("%s: IBM Power CXL Flash Adapter: %s\n",
+ __func__, CXLFLASH_DRIVER_DATE);
+
+ cxlflash_list_init();
+
+ return pci_register_driver(&cxlflash_driver);
+}
+
+/**
+ * exit_cxlflash() - module exit point
+ */
+static void __exit exit_cxlflash(void)
+{
+ cxlflash_term_global_luns();
+ cxlflash_free_errpage();
+
+ pci_unregister_driver(&cxlflash_driver);
+}
+
+module_init(init_cxlflash);
+module_exit(exit_cxlflash);
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _CXLFLASH_MAIN_H
+#define _CXLFLASH_MAIN_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+
+#define CXLFLASH_NAME "cxlflash"
+#define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter"
+#define CXLFLASH_DRIVER_DATE "(August 13, 2015)"
+
+#define PCI_DEVICE_ID_IBM_CORSA 0x04F0
+#define CXLFLASH_SUBS_DEV_ID 0x04F0
+
+/* Since there is only one target, make it 0 */
+#define CXLFLASH_TARGET 0
+#define CXLFLASH_MAX_CDB_LEN 16
+
+/* Really only one target per bus since the Texan is directly attached */
+#define CXLFLASH_MAX_NUM_TARGETS_PER_BUS 1
+#define CXLFLASH_MAX_NUM_LUNS_PER_TARGET 65536
+
+#define CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ)
+
+#define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */
+
+/* FC defines */
+#define FC_MTIP_CMDCONFIG 0x010
+#define FC_MTIP_STATUS 0x018
+
+#define FC_PNAME 0x300
+#define FC_CONFIG 0x320
+#define FC_CONFIG2 0x328
+#define FC_STATUS 0x330
+#define FC_ERROR 0x380
+#define FC_ERRCAP 0x388
+#define FC_ERRMSK 0x390
+#define FC_CNT_CRCERR 0x538
+#define FC_CRC_THRESH 0x580
+
+#define FC_MTIP_CMDCONFIG_ONLINE 0x20ULL
+#define FC_MTIP_CMDCONFIG_OFFLINE 0x40ULL
+
+#define FC_MTIP_STATUS_MASK 0x30ULL
+#define FC_MTIP_STATUS_ONLINE 0x20ULL
+#define FC_MTIP_STATUS_OFFLINE 0x10ULL
+
+/* TIMEOUT and RETRY definitions */
+
+/* AFU command timeout values */
+#define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */
+
+/* AFU command room retry limit */
+#define MC_ROOM_RETRY_CNT 10
+
+/* FC CRC clear periodic timer */
+#define MC_CRC_THRESH 100 /* threshold in 5 mins */
+
+#define FC_PORT_STATUS_RETRY_CNT 100 /* 100 100ms retries = 10 seconds */
+#define FC_PORT_STATUS_RETRY_INTERVAL_US 100000 /* microseconds */
+
+/* VPD defines */
+#define CXLFLASH_VPD_LEN 256
+#define WWPN_LEN 16
+#define WWPN_BUF_LEN (WWPN_LEN + 1)
+
+enum undo_level {
+ RELEASE_CONTEXT = 0,
+ FREE_IRQ,
+ UNMAP_ONE,
+ UNMAP_TWO,
+ UNMAP_THREE,
+ UNDO_START
+};
+
+struct dev_dependent_vals {
+ u64 max_sectors;
+};
+
+struct asyc_intr_info {
+ u64 status;
+ char *desc;
+ u8 port;
+ u8 action;
+#define CLR_FC_ERROR 0x01
+#define LINK_RESET 0x02
+};
+
+#ifndef CONFIG_CXL_EEH
+#define cxl_perst_reloads_same_image(_a, _b) do { } while (0)
+#endif
+
+#endif /* _CXLFLASH_MAIN_H */
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _SISLITE_H
+#define _SISLITE_H
+
+#include <linux/types.h>
+
+typedef u16 ctx_hndl_t;
+typedef u32 res_hndl_t;
+
+#define SIZE_4K 4096
+#define SIZE_64K 65536
+
+/*
+ * IOARCB: 64 bytes, min 16 byte alignment required, host native endianness
+ * except for SCSI CDB which remains big endian per SCSI standards.
+ */
+struct sisl_ioarcb {
+ u16 ctx_id; /* ctx_hndl_t */
+ u16 req_flags;
+#define SISL_REQ_FLAGS_RES_HNDL 0x8000U /* bit 0 (MSB) */
+#define SISL_REQ_FLAGS_PORT_LUN_ID 0x0000U
+
+#define SISL_REQ_FLAGS_SUP_UNDERRUN 0x4000U /* bit 1 */
+
+#define SISL_REQ_FLAGS_TIMEOUT_SECS 0x0000U /* bits 8,9 */
+#define SISL_REQ_FLAGS_TIMEOUT_MSECS 0x0040U
+#define SISL_REQ_FLAGS_TIMEOUT_USECS 0x0080U
+#define SISL_REQ_FLAGS_TIMEOUT_CYCLES 0x00C0U
+
+#define SISL_REQ_FLAGS_TMF_CMD 0x0004u /* bit 13 */
+
+#define SISL_REQ_FLAGS_AFU_CMD 0x0002U /* bit 14 */
+
+#define SISL_REQ_FLAGS_HOST_WRITE 0x0001U /* bit 15 (LSB) */
+#define SISL_REQ_FLAGS_HOST_READ 0x0000U
+
+ union {
+ u32 res_hndl; /* res_hndl_t */
+ u32 port_sel; /* this is a selection mask:
+ * 0x1 -> port#0 can be selected,
+ * 0x2 -> port#1 can be selected.
+ * Can be bitwise ORed.
+ */
+ };
+ u64 lun_id;
+ u32 data_len; /* 4K for read/write */
+ u32 ioadl_len;
+ union {
+ u64 data_ea; /* min 16 byte aligned */
+ u64 ioadl_ea;
+ };
+ u8 msi; /* LISN to send on RRQ write */
+#define SISL_MSI_CXL_PFAULT 0 /* reserved for CXL page faults */
+#define SISL_MSI_SYNC_ERROR 1 /* recommended for AFU sync error */
+#define SISL_MSI_RRQ_UPDATED 2 /* recommended for IO completion */
+#define SISL_MSI_ASYNC_ERROR 3 /* master only - for AFU async error */
+
+ u8 rrq; /* 0 for a single RRQ */
+ u16 timeout; /* in units specified by req_flags */
+ u32 rsvd1;
+ u8 cdb[16]; /* must be in big endian */
+ struct scsi_cmnd *scp;
+} __packed;
+
+struct sisl_rc {
+ u8 flags;
+#define SISL_RC_FLAGS_SENSE_VALID 0x80U
+#define SISL_RC_FLAGS_FCP_RSP_CODE_VALID 0x40U
+#define SISL_RC_FLAGS_OVERRUN 0x20U
+#define SISL_RC_FLAGS_UNDERRUN 0x10U
+
+ u8 afu_rc;
+#define SISL_AFU_RC_RHT_INVALID 0x01U /* user error */
+#define SISL_AFU_RC_RHT_UNALIGNED 0x02U /* should never happen */
+#define SISL_AFU_RC_RHT_OUT_OF_BOUNDS 0x03u /* user error */
+#define SISL_AFU_RC_RHT_DMA_ERR 0x04u /* see afu_extra
+ may retry if afu_retry is off
+ possible on master exit
+ */
+#define SISL_AFU_RC_RHT_RW_PERM 0x05u /* no RW perms, user error */
+#define SISL_AFU_RC_LXT_UNALIGNED 0x12U /* should never happen */
+#define SISL_AFU_RC_LXT_OUT_OF_BOUNDS 0x13u /* user error */
+#define SISL_AFU_RC_LXT_DMA_ERR 0x14u /* see afu_extra
+ may retry if afu_retry is off
+ possible on master exit
+ */
+#define SISL_AFU_RC_LXT_RW_PERM 0x15u /* no RW perms, user error */
+
+#define SISL_AFU_RC_NOT_XLATE_HOST 0x1au /* possible if master exited */
+
+ /* NO_CHANNELS means the FC ports selected by dest_port in
+ * IOARCB or in the LXT entry are down when the AFU tried to select
+ * a FC port. If the port went down on an active IO, it will set
+ * fc_rc to =0x54(NOLOGI) or 0x57(LINKDOWN) instead.
+ */
+#define SISL_AFU_RC_NO_CHANNELS 0x20U /* see afu_extra, may retry */
+#define SISL_AFU_RC_CAP_VIOLATION 0x21U /* either user error or
+ afu reset/master restart
+ */
+#define SISL_AFU_RC_OUT_OF_DATA_BUFS 0x30U /* always retry */
+#define SISL_AFU_RC_DATA_DMA_ERR 0x31U /* see afu_extra
+ may retry if afu_retry is off
+ */
+
+ u8 scsi_rc; /* SCSI status byte, retry as appropriate */
+#define SISL_SCSI_RC_CHECK 0x02U
+#define SISL_SCSI_RC_BUSY 0x08u
+
+ u8 fc_rc; /* retry */
+ /*
+ * We should only see fc_rc=0x57 (LINKDOWN) or 0x54(NOLOGI) for
+ * commands that are in flight when a link goes down or is logged out.
+ * If the link is down or logged out before AFU selects the port, either
+ * it will choose the other port or we will get afu_rc=0x20 (no_channel)
+ * if there is no valid port to use.
+ *
+ * ABORTPEND/ABORTOK/ABORTFAIL/TGTABORT can be retried, typically these
+ * would happen if a frame is dropped and something times out.
+ * NOLOGI or LINKDOWN can be retried if the other port is up.
+ * RESIDERR can be retried as well.
+ *
+ * ABORTFAIL might indicate that lots of frames are getting CRC errors.
+ * So it maybe retried once and reset the link if it happens again.
+ * The link can also be reset on the CRC error threshold interrupt.
+ */
+#define SISL_FC_RC_ABORTPEND 0x52 /* exchange timeout or abort request */
+#define SISL_FC_RC_WRABORTPEND 0x53 /* due to write XFER_RDY invalid */
+#define SISL_FC_RC_NOLOGI 0x54 /* port not logged in, in-flight cmds */
+#define SISL_FC_RC_NOEXP 0x55 /* FC protocol error or HW bug */
+#define SISL_FC_RC_INUSE 0x56 /* tag already in use, HW bug */
+#define SISL_FC_RC_LINKDOWN 0x57 /* link down, in-flight cmds */
+#define SISL_FC_RC_ABORTOK 0x58 /* pending abort completed w/success */
+#define SISL_FC_RC_ABORTFAIL 0x59 /* pending abort completed w/fail */
+#define SISL_FC_RC_RESID 0x5A /* ioasa underrun/overrun flags set */
+#define SISL_FC_RC_RESIDERR 0x5B /* actual data len does not match SCSI
+ reported len, possbly due to dropped
+ frames */
+#define SISL_FC_RC_TGTABORT 0x5C /* command aborted by target */
+};
+
+#define SISL_SENSE_DATA_LEN 20 /* Sense data length */
+
+/*
+ * IOASA: 64 bytes & must follow IOARCB, min 16 byte alignment required,
+ * host native endianness
+ */
+struct sisl_ioasa {
+ union {
+ struct sisl_rc rc;
+ u32 ioasc;
+#define SISL_IOASC_GOOD_COMPLETION 0x00000000U
+ };
+ u32 resid;
+ u8 port;
+ u8 afu_extra;
+ /* when afu_rc=0x04, 0x14, 0x31 (_xxx_DMA_ERR):
+ * afu_exta contains PSL response code. Useful codes are:
+ */
+#define SISL_AFU_DMA_ERR_PAGE_IN 0x0A /* AFU_retry_on_pagein Action
+ * Enabled N/A
+ * Disabled retry
+ */
+#define SISL_AFU_DMA_ERR_INVALID_EA 0x0B /* this is a hard error
+ * afu_rc Implies
+ * 0x04, 0x14 master exit.
+ * 0x31 user error.
+ */
+ /* when afu rc=0x20 (no channels):
+ * afu_extra bits [4:5]: available portmask, [6:7]: requested portmask.
+ */
+#define SISL_AFU_NO_CLANNELS_AMASK(afu_extra) (((afu_extra) & 0x0C) >> 2)
+#define SISL_AFU_NO_CLANNELS_RMASK(afu_extra) ((afu_extra) & 0x03)
+
+ u8 scsi_extra;
+ u8 fc_extra;
+ u8 sense_data[SISL_SENSE_DATA_LEN];
+
+ /* These fields are defined by the SISlite architecture for the
+ * host to use as they see fit for their implementation.
+ */
+ union {
+ u64 host_use[4];
+ u8 host_use_b[32];
+ };
+} __packed;
+
+#define SISL_RESP_HANDLE_T_BIT 0x1ULL /* Toggle bit */
+
+/* MMIO space is required to support only 64-bit access */
+
+/*
+ * This AFU has two mechanisms to deal with endian-ness.
+ * One is a global configuration (in the afu_config) register
+ * below that specifies the endian-ness of the host.
+ * The other is a per context (i.e. application) specification
+ * controlled by the endian_ctrl field here. Since the master
+ * context is one such application the master context's
+ * endian-ness is set to be the same as the host.
+ *
+ * As per the SISlite spec, the MMIO registers are always
+ * big endian.
+ */
+#define SISL_ENDIAN_CTRL_BE 0x8000000000000080ULL
+#define SISL_ENDIAN_CTRL_LE 0x0000000000000000ULL
+
+#ifdef __BIG_ENDIAN
+#define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_BE
+#else
+#define SISL_ENDIAN_CTRL SISL_ENDIAN_CTRL_LE
+#endif
+
+/* per context host transport MMIO */
+struct sisl_host_map {
+ __be64 endian_ctrl; /* Per context Endian Control. The AFU will
+ * operate on whatever the context is of the
+ * host application.
+ */
+
+ __be64 intr_status; /* this sends LISN# programmed in ctx_ctrl.
+ * Only recovery in a PERM_ERR is a context
+ * exit since there is no way to tell which
+ * command caused the error.
+ */
+#define SISL_ISTATUS_PERM_ERR_CMDROOM 0x0010ULL /* b59, user error */
+#define SISL_ISTATUS_PERM_ERR_RCB_READ 0x0008ULL /* b60, user error */
+#define SISL_ISTATUS_PERM_ERR_SA_WRITE 0x0004ULL /* b61, user error */
+#define SISL_ISTATUS_PERM_ERR_RRQ_WRITE 0x0002ULL /* b62, user error */
+ /* Page in wait accessing RCB/IOASA/RRQ is reported in b63.
+ * Same error in data/LXT/RHT access is reported via IOASA.
+ */
+#define SISL_ISTATUS_TEMP_ERR_PAGEIN 0x0001ULL /* b63, can be generated
+ * only when AFU auto
+ * retry is disabled.
+ * If user can determine
+ * the command that
+ * caused the error, it
+ * can be retried.
+ */
+#define SISL_ISTATUS_UNMASK (0x001FULL) /* 1 means unmasked */
+#define SISL_ISTATUS_MASK ~(SISL_ISTATUS_UNMASK) /* 1 means masked */
+
+ __be64 intr_clear;
+ __be64 intr_mask;
+ __be64 ioarrin; /* only write what cmd_room permits */
+ __be64 rrq_start; /* start & end are both inclusive */
+ __be64 rrq_end; /* write sequence: start followed by end */
+ __be64 cmd_room;
+ __be64 ctx_ctrl; /* least signiifcant byte or b56:63 is LISN# */
+ __be64 mbox_w; /* restricted use */
+};
+
+/* per context provisioning & control MMIO */
+struct sisl_ctrl_map {
+ __be64 rht_start;
+ __be64 rht_cnt_id;
+ /* both cnt & ctx_id args must be ULL */
+#define SISL_RHT_CNT_ID(cnt, ctx_id) (((cnt) << 48) | ((ctx_id) << 32))
+
+ __be64 ctx_cap; /* afu_rc below is when the capability is violated */
+#define SISL_CTX_CAP_PROXY_ISSUE 0x8000000000000000ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_REAL_MODE 0x4000000000000000ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_HOST_XLATE 0x2000000000000000ULL /* afu_rc 0x1a */
+#define SISL_CTX_CAP_PROXY_TARGET 0x1000000000000000ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_AFU_CMD 0x0000000000000008ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_GSCSI_CMD 0x0000000000000004ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_WRITE_CMD 0x0000000000000002ULL /* afu_rc 0x21 */
+#define SISL_CTX_CAP_READ_CMD 0x0000000000000001ULL /* afu_rc 0x21 */
+ __be64 mbox_r;
+};
+
+/* single copy global regs */
+struct sisl_global_regs {
+ __be64 aintr_status;
+ /* In cxlflash, each FC port/link gets a byte of status */
+#define SISL_ASTATUS_FC0_OTHER 0x8000ULL /* b48, other err,
+ FC_ERRCAP[31:20] */
+#define SISL_ASTATUS_FC0_LOGO 0x4000ULL /* b49, target sent FLOGI/PLOGI/LOGO
+ while logged in */
+#define SISL_ASTATUS_FC0_CRC_T 0x2000ULL /* b50, CRC threshold exceeded */
+#define SISL_ASTATUS_FC0_LOGI_R 0x1000ULL /* b51, login state mechine timed out
+ and retrying */
+#define SISL_ASTATUS_FC0_LOGI_F 0x0800ULL /* b52, login failed,
+ FC_ERROR[19:0] */
+#define SISL_ASTATUS_FC0_LOGI_S 0x0400ULL /* b53, login succeeded */
+#define SISL_ASTATUS_FC0_LINK_DN 0x0200ULL /* b54, link online to offline */
+#define SISL_ASTATUS_FC0_LINK_UP 0x0100ULL /* b55, link offline to online */
+
+#define SISL_ASTATUS_FC1_OTHER 0x0080ULL /* b56 */
+#define SISL_ASTATUS_FC1_LOGO 0x0040ULL /* b57 */
+#define SISL_ASTATUS_FC1_CRC_T 0x0020ULL /* b58 */
+#define SISL_ASTATUS_FC1_LOGI_R 0x0010ULL /* b59 */
+#define SISL_ASTATUS_FC1_LOGI_F 0x0008ULL /* b60 */
+#define SISL_ASTATUS_FC1_LOGI_S 0x0004ULL /* b61 */
+#define SISL_ASTATUS_FC1_LINK_DN 0x0002ULL /* b62 */
+#define SISL_ASTATUS_FC1_LINK_UP 0x0001ULL /* b63 */
+
+#define SISL_FC_INTERNAL_UNMASK 0x0000000300000000ULL /* 1 means unmasked */
+#define SISL_FC_INTERNAL_MASK ~(SISL_FC_INTERNAL_UNMASK)
+#define SISL_FC_INTERNAL_SHIFT 32
+
+#define SISL_ASTATUS_UNMASK 0xFFFFULL /* 1 means unmasked */
+#define SISL_ASTATUS_MASK ~(SISL_ASTATUS_UNMASK) /* 1 means masked */
+
+ __be64 aintr_clear;
+ __be64 aintr_mask;
+ __be64 afu_ctrl;
+ __be64 afu_hb;
+ __be64 afu_scratch_pad;
+ __be64 afu_port_sel;
+#define SISL_AFUCONF_AR_IOARCB 0x4000ULL
+#define SISL_AFUCONF_AR_LXT 0x2000ULL
+#define SISL_AFUCONF_AR_RHT 0x1000ULL
+#define SISL_AFUCONF_AR_DATA 0x0800ULL
+#define SISL_AFUCONF_AR_RSRC 0x0400ULL
+#define SISL_AFUCONF_AR_IOASA 0x0200ULL
+#define SISL_AFUCONF_AR_RRQ 0x0100ULL
+/* Aggregate all Auto Retry Bits */
+#define SISL_AFUCONF_AR_ALL (SISL_AFUCONF_AR_IOARCB|SISL_AFUCONF_AR_LXT| \
+ SISL_AFUCONF_AR_RHT|SISL_AFUCONF_AR_DATA| \
+ SISL_AFUCONF_AR_RSRC|SISL_AFUCONF_AR_IOASA| \
+ SISL_AFUCONF_AR_RRQ)
+#ifdef __BIG_ENDIAN
+#define SISL_AFUCONF_ENDIAN 0x0000ULL
+#else
+#define SISL_AFUCONF_ENDIAN 0x0020ULL
+#endif
+#define SISL_AFUCONF_MBOX_CLR_READ 0x0010ULL
+ __be64 afu_config;
+ __be64 rsvd[0xf8];
+ __be64 afu_version;
+ __be64 interface_version;
+};
+
+#define CXLFLASH_NUM_FC_PORTS 2
+#define CXLFLASH_MAX_CONTEXT 512 /* how many contexts per afu */
+#define CXLFLASH_NUM_VLUNS 512
+
+struct sisl_global_map {
+ union {
+ struct sisl_global_regs regs;
+ char page0[SIZE_4K]; /* page 0 */
+ };
+
+ char page1[SIZE_4K]; /* page 1 */
+
+ /* pages 2 & 3 */
+ __be64 fc_regs[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS];
+
+ /* pages 4 & 5 (lun tbl) */
+ __be64 fc_port[CXLFLASH_NUM_FC_PORTS][CXLFLASH_NUM_VLUNS];
+
+};
+
+/*
+ * CXL Flash Memory Map
+ *
+ * +-------------------------------+
+ * | 512 * 64 KB User MMIO |
+ * | (per context) |
+ * | User Accessible |
+ * +-------------------------------+
+ * | 512 * 128 B per context |
+ * | Provisioning and Control |
+ * | Trusted Process accessible |
+ * +-------------------------------+
+ * | 64 KB Global |
+ * | Trusted Process accessible |
+ * +-------------------------------+
+*/
+struct cxlflash_afu_map {
+ union {
+ struct sisl_host_map host;
+ char harea[SIZE_64K]; /* 64KB each */
+ } hosts[CXLFLASH_MAX_CONTEXT];
+
+ union {
+ struct sisl_ctrl_map ctrl;
+ char carea[cache_line_size()]; /* 128B each */
+ } ctrls[CXLFLASH_MAX_CONTEXT];
+
+ union {
+ struct sisl_global_map global;
+ char garea[SIZE_64K]; /* 64KB single block */
+ };
+};
+
+/*
+ * LXT - LBA Translation Table
+ * LXT control blocks
+ */
+struct sisl_lxt_entry {
+ u64 rlba_base; /* bits 0:47 is base
+ * b48:55 is lun index
+ * b58:59 is write & read perms
+ * (if no perm, afu_rc=0x15)
+ * b60:63 is port_sel mask
+ */
+};
+
+/*
+ * RHT - Resource Handle Table
+ * Per the SISlite spec, RHT entries are to be 16-byte aligned
+ */
+struct sisl_rht_entry {
+ struct sisl_lxt_entry *lxt_start;
+ u32 lxt_cnt;
+ u16 rsvd;
+ u8 fp; /* format & perm nibbles.
+ * (if no perm, afu_rc=0x05)
+ */
+ u8 nmask;
+} __packed __aligned(16);
+
+struct sisl_rht_entry_f1 {
+ u64 lun_id;
+ union {
+ struct {
+ u8 valid;
+ u8 rsvd[5];
+ u8 fp;
+ u8 port_sel;
+ };
+
+ u64 dw;
+ };
+} __packed __aligned(16);
+
+/* make the fp byte */
+#define SISL_RHT_FP(fmt, perm) (((fmt) << 4) | (perm))
+
+/* make the fp byte for a clone from a source fp and clone flags
+ * flags must be only 2 LSB bits.
+ */
+#define SISL_RHT_FP_CLONE(src_fp, cln_flags) ((src_fp) & (0xFC | (cln_flags)))
+
+#define RHT_PERM_READ 0x01U
+#define RHT_PERM_WRITE 0x02U
+#define RHT_PERM_RW (RHT_PERM_READ | RHT_PERM_WRITE)
+
+/* extract the perm bits from a fp */
+#define SISL_RHT_PERM(fp) ((fp) & RHT_PERM_RW)
+
+#define PORT0 0x01U
+#define PORT1 0x02U
+#define BOTH_PORTS (PORT0 | PORT1)
+
+/* AFU Sync Mode byte */
+#define AFU_LW_SYNC 0x0U
+#define AFU_HW_SYNC 0x1U
+#define AFU_GSYNC 0x2U
+
+/* Special Task Management Function CDB */
+#define TMF_LUN_RESET 0x1U
+#define TMF_CLEAR_ACA 0x2U
+
+
+#define SISLITE_MAX_WS_BLOCKS 512
+
+#endif /* _SISLITE_H */
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/file.h>
+#include <linux/syscalls.h>
+#include <misc/cxl.h>
+#include <asm/unaligned.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_eh.h>
+#include <uapi/scsi/cxlflash_ioctl.h>
+
+#include "sislite.h"
+#include "common.h"
+#include "vlun.h"
+#include "superpipe.h"
+
+struct cxlflash_global global;
+
+/**
+ * marshal_rele_to_resize() - translate release to resize structure
+ * @rele: Source structure from which to translate/copy.
+ * @resize: Destination structure for the translate/copy.
+ */
+static void marshal_rele_to_resize(struct dk_cxlflash_release *release,
+ struct dk_cxlflash_resize *resize)
+{
+ resize->hdr = release->hdr;
+ resize->context_id = release->context_id;
+ resize->rsrc_handle = release->rsrc_handle;
+}
+
+/**
+ * marshal_det_to_rele() - translate detach to release structure
+ * @detach: Destination structure for the translate/copy.
+ * @rele: Source structure from which to translate/copy.
+ */
+static void marshal_det_to_rele(struct dk_cxlflash_detach *detach,
+ struct dk_cxlflash_release *release)
+{
+ release->hdr = detach->hdr;
+ release->context_id = detach->context_id;
+}
+
+/**
+ * cxlflash_free_errpage() - frees resources associated with global error page
+ */
+void cxlflash_free_errpage(void)
+{
+
+ mutex_lock(&global.mutex);
+ if (global.err_page) {
+ __free_page(global.err_page);
+ global.err_page = NULL;
+ }
+ mutex_unlock(&global.mutex);
+}
+
+/**
+ * cxlflash_stop_term_user_contexts() - stops/terminates known user contexts
+ * @cfg: Internal structure associated with the host.
+ *
+ * When the host needs to go down, all users must be quiesced and their
+ * memory freed. This is accomplished by putting the contexts in error
+ * state which will notify the user and let them 'drive' the tear-down.
+ * Meanwhile, this routine camps until all user contexts have been removed.
+ */
+void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *cfg)
+{
+ struct device *dev = &cfg->dev->dev;
+ int i, found;
+
+ cxlflash_mark_contexts_error(cfg);
+
+ while (true) {
+ found = false;
+
+ for (i = 0; i < MAX_CONTEXT; i++)
+ if (cfg->ctx_tbl[i]) {
+ found = true;
+ break;
+ }
+
+ if (!found && list_empty(&cfg->ctx_err_recovery))
+ return;
+
+ dev_dbg(dev, "%s: Wait for user contexts to quiesce...\n",
+ __func__);
+ wake_up_all(&cfg->limbo_waitq);
+ ssleep(1);
+ }
+}
+
+/**
+ * find_error_context() - locates a context by cookie on the error recovery list
+ * @cfg: Internal structure associated with the host.
+ * @rctxid: Desired context by id.
+ * @file: Desired context by file.
+ *
+ * Return: Found context on success, NULL on failure
+ */
+static struct ctx_info *find_error_context(struct cxlflash_cfg *cfg, u64 rctxid,
+ struct file *file)
+{
+ struct ctx_info *ctxi;
+
+ list_for_each_entry(ctxi, &cfg->ctx_err_recovery, list)
+ if ((ctxi->ctxid == rctxid) || (ctxi->file == file))
+ return ctxi;
+
+ return NULL;
+}
+
+/**
+ * get_context() - obtains a validated and locked context reference
+ * @cfg: Internal structure associated with the host.
+ * @rctxid: Desired context (raw, un-decoded format).
+ * @arg: LUN information or file associated with request.
+ * @ctx_ctrl: Control information to 'steer' desired lookup.
+ *
+ * NOTE: despite the name pid, in linux, current->pid actually refers
+ * to the lightweight process id (tid) and can change if the process is
+ * multi threaded. The tgid remains constant for the process and only changes
+ * when the process of fork. For all intents and purposes, think of tgid
+ * as a pid in the traditional sense.
+ *
+ * Return: Validated context on success, NULL on failure
+ */
+struct ctx_info *get_context(struct cxlflash_cfg *cfg, u64 rctxid,
+ void *arg, enum ctx_ctrl ctx_ctrl)
+{
+ struct device *dev = &cfg->dev->dev;
+ struct ctx_info *ctxi = NULL;
+ struct lun_access *lun_access = NULL;
+ struct file *file = NULL;
+ struct llun_info *lli = arg;
+ u64 ctxid = DECODE_CTXID(rctxid);
+ int rc;
+ pid_t pid = current->tgid, ctxpid = 0;
+
+ if (ctx_ctrl & CTX_CTRL_FILE) {
+ lli = NULL;
+ file = (struct file *)arg;
+ }
+
+ if (ctx_ctrl & CTX_CTRL_CLONE)
+ pid = current->parent->tgid;
+
+ if (likely(ctxid < MAX_CONTEXT)) {
+ while (true) {
+ rc = mutex_lock_interruptible(&cfg->ctx_tbl_list_mutex);
+ if (rc)
+ goto out;
+
+ ctxi = cfg->ctx_tbl[ctxid];
+ if (ctxi)
+ if ((file && (ctxi->file != file)) ||
+ (!file && (ctxi->ctxid != rctxid)))
+ ctxi = NULL;
+
+ if ((ctx_ctrl & CTX_CTRL_ERR) ||
+ (!ctxi && (ctx_ctrl & CTX_CTRL_ERR_FALLBACK)))
+ ctxi = find_error_context(cfg, rctxid, file);
+ if (!ctxi) {
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ goto out;
+ }
+
+ /*
+ * Need to acquire ownership of the context while still
+ * under the table/list lock to serialize with a remove
+ * thread. Use the 'try' to avoid stalling the
+ * table/list lock for a single context.
+ *
+ * Note that the lock order is:
+ *
+ * cfg->ctx_tbl_list_mutex -> ctxi->mutex
+ *
+ * Therefore release ctx_tbl_list_mutex before retrying.
+ */
+ rc = mutex_trylock(&ctxi->mutex);
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ if (rc)
+ break; /* got the context's lock! */
+ }
+
+ if (ctxi->unavail)
+ goto denied;
+
+ ctxpid = ctxi->pid;
+ if (likely(!(ctx_ctrl & CTX_CTRL_NOPID)))
+ if (pid != ctxpid)
+ goto denied;
+
+ if (lli) {
+ list_for_each_entry(lun_access, &ctxi->luns, list)
+ if (lun_access->lli == lli)
+ goto out;
+ goto denied;
+ }
+ }
+
+out:
+ dev_dbg(dev, "%s: rctxid=%016llX ctxinfo=%p ctxpid=%u pid=%u "
+ "ctx_ctrl=%u\n", __func__, rctxid, ctxi, ctxpid, pid,
+ ctx_ctrl);
+
+ return ctxi;
+
+denied:
+ mutex_unlock(&ctxi->mutex);
+ ctxi = NULL;
+ goto out;
+}
+
+/**
+ * put_context() - release a context that was retrieved from get_context()
+ * @ctxi: Context to release.
+ *
+ * For now, releasing the context equates to unlocking it's mutex.
+ */
+void put_context(struct ctx_info *ctxi)
+{
+ mutex_unlock(&ctxi->mutex);
+}
+
+/**
+ * afu_attach() - attach a context to the AFU
+ * @cfg: Internal structure associated with the host.
+ * @ctxi: Context to attach.
+ *
+ * Upon setting the context capabilities, they must be confirmed with
+ * a read back operation as the context might have been closed since
+ * the mailbox was unlocked. When this occurs, registration is failed.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int afu_attach(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
+{
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ struct sisl_ctrl_map *ctrl_map = ctxi->ctrl_map;
+ int rc = 0;
+ u64 val;
+
+ /* Unlock cap and restrict user to read/write cmds in translated mode */
+ readq_be(&ctrl_map->mbox_r);
+ val = (SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD);
+ writeq_be(val, &ctrl_map->ctx_cap);
+ val = readq_be(&ctrl_map->ctx_cap);
+ if (val != (SISL_CTX_CAP_READ_CMD | SISL_CTX_CAP_WRITE_CMD)) {
+ dev_err(dev, "%s: ctx may be closed val=%016llX\n",
+ __func__, val);
+ rc = -EAGAIN;
+ goto out;
+ }
+
+ /* Set up MMIO registers pointing to the RHT */
+ writeq_be((u64)ctxi->rht_start, &ctrl_map->rht_start);
+ val = SISL_RHT_CNT_ID((u64)MAX_RHT_PER_CONTEXT, (u64)(afu->ctx_hndl));
+ writeq_be(val, &ctrl_map->rht_cnt_id);
+out:
+ dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * read_cap16() - issues a SCSI READ_CAP16 command
+ * @sdev: SCSI device associated with LUN.
+ * @lli: LUN destined for capacity request.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int read_cap16(struct scsi_device *sdev, struct llun_info *lli)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct glun_info *gli = lli->parent;
+ u8 *cmd_buf = NULL;
+ u8 *scsi_cmd = NULL;
+ u8 *sense_buf = NULL;
+ int rc = 0;
+ int result = 0;
+ int retry_cnt = 0;
+ u32 tout = (MC_DISCOVERY_TIMEOUT * HZ);
+
+retry:
+ cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL);
+ scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL);
+ sense_buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
+ if (unlikely(!cmd_buf || !scsi_cmd || !sense_buf)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ scsi_cmd[0] = SERVICE_ACTION_IN_16; /* read cap(16) */
+ scsi_cmd[1] = SAI_READ_CAPACITY_16; /* service action */
+ put_unaligned_be32(CMD_BUFSIZE, &scsi_cmd[10]);
+
+ dev_dbg(dev, "%s: %ssending cmd(0x%x)\n", __func__,
+ retry_cnt ? "re" : "", scsi_cmd[0]);
+
+ result = scsi_execute(sdev, scsi_cmd, DMA_FROM_DEVICE, cmd_buf,
+ CMD_BUFSIZE, sense_buf, tout, 5, 0, NULL);
+
+ if (driver_byte(result) == DRIVER_SENSE) {
+ result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
+ if (result & SAM_STAT_CHECK_CONDITION) {
+ struct scsi_sense_hdr sshdr;
+
+ scsi_normalize_sense(sense_buf, SCSI_SENSE_BUFFERSIZE,
+ &sshdr);
+ switch (sshdr.sense_key) {
+ case NO_SENSE:
+ case RECOVERED_ERROR:
+ /* fall through */
+ case NOT_READY:
+ result &= ~SAM_STAT_CHECK_CONDITION;
+ break;
+ case UNIT_ATTENTION:
+ switch (sshdr.asc) {
+ case 0x29: /* Power on Reset or Device Reset */
+ /* fall through */
+ case 0x2A: /* Device capacity changed */
+ case 0x3F: /* Report LUNs changed */
+ /* Retry the command once more */
+ if (retry_cnt++ < 1) {
+ kfree(cmd_buf);
+ kfree(scsi_cmd);
+ kfree(sense_buf);
+ goto retry;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ if (result) {
+ dev_err(dev, "%s: command failed, result=0x%x\n",
+ __func__, result);
+ rc = -EIO;
+ goto out;
+ }
+
+ /*
+ * Read cap was successful, grab values from the buffer;
+ * note that we don't need to worry about unaligned access
+ * as the buffer is allocated on an aligned boundary.
+ */
+ mutex_lock(&gli->mutex);
+ gli->max_lba = be64_to_cpu(*((u64 *)&cmd_buf[0]));
+ gli->blk_len = be32_to_cpu(*((u32 *)&cmd_buf[8]));
+ mutex_unlock(&gli->mutex);
+
+out:
+ kfree(cmd_buf);
+ kfree(scsi_cmd);
+ kfree(sense_buf);
+
+ dev_dbg(dev, "%s: maxlba=%lld blklen=%d rc=%d\n",
+ __func__, gli->max_lba, gli->blk_len, rc);
+ return rc;
+}
+
+/**
+ * get_rhte() - obtains validated resource handle table entry reference
+ * @ctxi: Context owning the resource handle.
+ * @rhndl: Resource handle associated with entry.
+ * @lli: LUN associated with request.
+ *
+ * Return: Validated RHTE on success, NULL on failure
+ */
+struct sisl_rht_entry *get_rhte(struct ctx_info *ctxi, res_hndl_t rhndl,
+ struct llun_info *lli)
+{
+ struct sisl_rht_entry *rhte = NULL;
+
+ if (unlikely(!ctxi->rht_start)) {
+ pr_debug("%s: Context does not have allocated RHT!\n",
+ __func__);
+ goto out;
+ }
+
+ if (unlikely(rhndl >= MAX_RHT_PER_CONTEXT)) {
+ pr_debug("%s: Bad resource handle! (%d)\n", __func__, rhndl);
+ goto out;
+ }
+
+ if (unlikely(ctxi->rht_lun[rhndl] != lli)) {
+ pr_debug("%s: Bad resource handle LUN! (%d)\n",
+ __func__, rhndl);
+ goto out;
+ }
+
+ rhte = &ctxi->rht_start[rhndl];
+ if (unlikely(rhte->nmask == 0)) {
+ pr_debug("%s: Unopened resource handle! (%d)\n",
+ __func__, rhndl);
+ rhte = NULL;
+ goto out;
+ }
+
+out:
+ return rhte;
+}
+
+/**
+ * rhte_checkout() - obtains free/empty resource handle table entry
+ * @ctxi: Context owning the resource handle.
+ * @lli: LUN associated with request.
+ *
+ * Return: Free RHTE on success, NULL on failure
+ */
+struct sisl_rht_entry *rhte_checkout(struct ctx_info *ctxi,
+ struct llun_info *lli)
+{
+ struct sisl_rht_entry *rhte = NULL;
+ int i;
+
+ /* Find a free RHT entry */
+ for (i = 0; i < MAX_RHT_PER_CONTEXT; i++)
+ if (ctxi->rht_start[i].nmask == 0) {
+ rhte = &ctxi->rht_start[i];
+ ctxi->rht_out++;
+ break;
+ }
+
+ if (likely(rhte))
+ ctxi->rht_lun[i] = lli;
+
+ pr_debug("%s: returning rhte=%p (%d)\n", __func__, rhte, i);
+ return rhte;
+}
+
+/**
+ * rhte_checkin() - releases a resource handle table entry
+ * @ctxi: Context owning the resource handle.
+ * @rhte: RHTE to release.
+ */
+void rhte_checkin(struct ctx_info *ctxi,
+ struct sisl_rht_entry *rhte)
+{
+ u32 rsrc_handle = rhte - ctxi->rht_start;
+
+ rhte->nmask = 0;
+ rhte->fp = 0;
+ ctxi->rht_out--;
+ ctxi->rht_lun[rsrc_handle] = NULL;
+ ctxi->rht_needs_ws[rsrc_handle] = false;
+}
+
+/**
+ * rhte_format1() - populates a RHTE for format 1
+ * @rhte: RHTE to populate.
+ * @lun_id: LUN ID of LUN associated with RHTE.
+ * @perm: Desired permissions for RHTE.
+ * @port_sel: Port selection mask
+ */
+static void rht_format1(struct sisl_rht_entry *rhte, u64 lun_id, u32 perm,
+ u32 port_sel)
+{
+ /*
+ * Populate the Format 1 RHT entry for direct access (physical
+ * LUN) using the synchronization sequence defined in the
+ * SISLite specification.
+ */
+ struct sisl_rht_entry_f1 dummy = { 0 };
+ struct sisl_rht_entry_f1 *rhte_f1 = (struct sisl_rht_entry_f1 *)rhte;
+
+ memset(rhte_f1, 0, sizeof(*rhte_f1));
+ rhte_f1->fp = SISL_RHT_FP(1U, 0);
+ dma_wmb(); /* Make setting of format bit visible */
+
+ rhte_f1->lun_id = lun_id;
+ dma_wmb(); /* Make setting of LUN id visible */
+
+ /*
+ * Use a dummy RHT Format 1 entry to build the second dword
+ * of the entry that must be populated in a single write when
+ * enabled (valid bit set to TRUE).
+ */
+ dummy.valid = 0x80;
+ dummy.fp = SISL_RHT_FP(1U, perm);
+ dummy.port_sel = port_sel;
+ rhte_f1->dw = dummy.dw;
+
+ dma_wmb(); /* Make remaining RHT entry fields visible */
+}
+
+/**
+ * cxlflash_lun_attach() - attaches a user to a LUN and manages the LUN's mode
+ * @gli: LUN to attach.
+ * @mode: Desired mode of the LUN.
+ * @locked: Mutex status on current thread.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_lun_attach(struct glun_info *gli, enum lun_mode mode, bool locked)
+{
+ int rc = 0;
+
+ if (!locked)
+ mutex_lock(&gli->mutex);
+
+ if (gli->mode == MODE_NONE)
+ gli->mode = mode;
+ else if (gli->mode != mode) {
+ pr_debug("%s: LUN operating in mode %d, requested mode %d\n",
+ __func__, gli->mode, mode);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ gli->users++;
+ WARN_ON(gli->users <= 0);
+out:
+ pr_debug("%s: Returning rc=%d gli->mode=%u gli->users=%u\n",
+ __func__, rc, gli->mode, gli->users);
+ if (!locked)
+ mutex_unlock(&gli->mutex);
+ return rc;
+}
+
+/**
+ * cxlflash_lun_detach() - detaches a user from a LUN and resets the LUN's mode
+ * @gli: LUN to detach.
+ *
+ * When resetting the mode, terminate block allocation resources as they
+ * are no longer required (service is safe to call even when block allocation
+ * resources were not present - such as when transitioning from physical mode).
+ * These resources will be reallocated when needed (subsequent transition to
+ * virtual mode).
+ */
+void cxlflash_lun_detach(struct glun_info *gli)
+{
+ mutex_lock(&gli->mutex);
+ WARN_ON(gli->mode == MODE_NONE);
+ if (--gli->users == 0) {
+ gli->mode = MODE_NONE;
+ cxlflash_ba_terminate(&gli->blka.ba_lun);
+ }
+ pr_debug("%s: gli->users=%u\n", __func__, gli->users);
+ WARN_ON(gli->users < 0);
+ mutex_unlock(&gli->mutex);
+}
+
+/**
+ * _cxlflash_disk_release() - releases the specified resource entry
+ * @sdev: SCSI device associated with LUN.
+ * @ctxi: Context owning resources.
+ * @release: Release ioctl data structure.
+ *
+ * For LUNs in virtual mode, the virtual LUN associated with the specified
+ * resource handle is resized to 0 prior to releasing the RHTE. Note that the
+ * AFU sync should _not_ be performed when the context is sitting on the error
+ * recovery list. A context on the error recovery list is not known to the AFU
+ * due to reset. When the context is recovered, it will be reattached and made
+ * known again to the AFU.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int _cxlflash_disk_release(struct scsi_device *sdev,
+ struct ctx_info *ctxi,
+ struct dk_cxlflash_release *release)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct afu *afu = cfg->afu;
+ bool put_ctx = false;
+
+ struct dk_cxlflash_resize size;
+ res_hndl_t rhndl = release->rsrc_handle;
+
+ int rc = 0;
+ u64 ctxid = DECODE_CTXID(release->context_id),
+ rctxid = release->context_id;
+
+ struct sisl_rht_entry *rhte;
+ struct sisl_rht_entry_f1 *rhte_f1;
+
+ dev_dbg(dev, "%s: ctxid=%llu rhndl=0x%llx gli->mode=%u gli->users=%u\n",
+ __func__, ctxid, release->rsrc_handle, gli->mode, gli->users);
+
+ if (!ctxi) {
+ ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%llu)\n",
+ __func__, ctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ put_ctx = true;
+ }
+
+ rhte = get_rhte(ctxi, rhndl, lli);
+ if (unlikely(!rhte)) {
+ dev_dbg(dev, "%s: Bad resource handle! (%d)\n",
+ __func__, rhndl);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /*
+ * Resize to 0 for virtual LUNS by setting the size
+ * to 0. This will clear LXT_START and LXT_CNT fields
+ * in the RHT entry and properly sync with the AFU.
+ *
+ * Afterwards we clear the remaining fields.
+ */
+ switch (gli->mode) {
+ case MODE_VIRTUAL:
+ marshal_rele_to_resize(release, &size);
+ size.req_size = 0;
+ rc = _cxlflash_vlun_resize(sdev, ctxi, &size);
+ if (rc) {
+ dev_dbg(dev, "%s: resize failed rc %d\n", __func__, rc);
+ goto out;
+ }
+
+ break;
+ case MODE_PHYSICAL:
+ /*
+ * Clear the Format 1 RHT entry for direct access
+ * (physical LUN) using the synchronization sequence
+ * defined in the SISLite specification.
+ */
+ rhte_f1 = (struct sisl_rht_entry_f1 *)rhte;
+
+ rhte_f1->valid = 0;
+ dma_wmb(); /* Make revocation of RHT entry visible */
+
+ rhte_f1->lun_id = 0;
+ dma_wmb(); /* Make clearing of LUN id visible */
+
+ rhte_f1->dw = 0;
+ dma_wmb(); /* Make RHT entry bottom-half clearing visible */
+
+ if (!ctxi->err_recovery_active)
+ cxlflash_afu_sync(afu, ctxid, rhndl, AFU_HW_SYNC);
+ break;
+ default:
+ WARN(1, "Unsupported LUN mode!");
+ goto out;
+ }
+
+ rhte_checkin(ctxi, rhte);
+ cxlflash_lun_detach(gli);
+
+out:
+ if (put_ctx)
+ put_context(ctxi);
+ dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+int cxlflash_disk_release(struct scsi_device *sdev,
+ struct dk_cxlflash_release *release)
+{
+ return _cxlflash_disk_release(sdev, NULL, release);
+}
+
+/**
+ * destroy_context() - releases a context
+ * @cfg: Internal structure associated with the host.
+ * @ctxi: Context to release.
+ *
+ * Note that the rht_lun member of the context was cut from a single
+ * allocation when the context was created and therefore does not need
+ * to be explicitly freed. Also note that we conditionally check for the
+ * existence of the context control map before clearing the RHT registers
+ * and context capabilities because it is possible to destroy a context
+ * while the context is in the error state (previous mapping was removed
+ * [so we don't have to worry about clearing] and context is waiting for
+ * a new mapping).
+ */
+static void destroy_context(struct cxlflash_cfg *cfg,
+ struct ctx_info *ctxi)
+{
+ struct afu *afu = cfg->afu;
+
+ WARN_ON(!list_empty(&ctxi->luns));
+
+ /* Clear RHT registers and drop all capabilities for this context */
+ if (afu->afu_map && ctxi->ctrl_map) {
+ writeq_be(0, &ctxi->ctrl_map->rht_start);
+ writeq_be(0, &ctxi->ctrl_map->rht_cnt_id);
+ writeq_be(0, &ctxi->ctrl_map->ctx_cap);
+ }
+
+ /* Free memory associated with context */
+ free_page((ulong)ctxi->rht_start);
+ kfree(ctxi->rht_needs_ws);
+ kfree(ctxi->rht_lun);
+ kfree(ctxi);
+ atomic_dec_if_positive(&cfg->num_user_contexts);
+}
+
+/**
+ * create_context() - allocates and initializes a context
+ * @cfg: Internal structure associated with the host.
+ * @ctx: Previously obtained CXL context reference.
+ * @ctxid: Previously obtained process element associated with CXL context.
+ * @adap_fd: Previously obtained adapter fd associated with CXL context.
+ * @file: Previously obtained file associated with CXL context.
+ * @perms: User-specified permissions.
+ *
+ * The context's mutex is locked when an allocated context is returned.
+ *
+ * Return: Allocated context on success, NULL on failure
+ */
+static struct ctx_info *create_context(struct cxlflash_cfg *cfg,
+ struct cxl_context *ctx, int ctxid,
+ int adap_fd, struct file *file,
+ u32 perms)
+{
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ struct ctx_info *ctxi = NULL;
+ struct llun_info **lli = NULL;
+ bool *ws = NULL;
+ struct sisl_rht_entry *rhte;
+
+ ctxi = kzalloc(sizeof(*ctxi), GFP_KERNEL);
+ lli = kzalloc((MAX_RHT_PER_CONTEXT * sizeof(*lli)), GFP_KERNEL);
+ ws = kzalloc((MAX_RHT_PER_CONTEXT * sizeof(*ws)), GFP_KERNEL);
+ if (unlikely(!ctxi || !lli || !ws)) {
+ dev_err(dev, "%s: Unable to allocate context!\n", __func__);
+ goto err;
+ }
+
+ rhte = (struct sisl_rht_entry *)get_zeroed_page(GFP_KERNEL);
+ if (unlikely(!rhte)) {
+ dev_err(dev, "%s: Unable to allocate RHT!\n", __func__);
+ goto err;
+ }
+
+ ctxi->rht_lun = lli;
+ ctxi->rht_needs_ws = ws;
+ ctxi->rht_start = rhte;
+ ctxi->rht_perms = perms;
+
+ ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl;
+ ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
+ ctxi->lfd = adap_fd;
+ ctxi->pid = current->tgid; /* tgid = pid */
+ ctxi->ctx = ctx;
+ ctxi->file = file;
+ mutex_init(&ctxi->mutex);
+ INIT_LIST_HEAD(&ctxi->luns);
+ INIT_LIST_HEAD(&ctxi->list); /* initialize for list_empty() */
+
+ atomic_inc(&cfg->num_user_contexts);
+ mutex_lock(&ctxi->mutex);
+out:
+ return ctxi;
+
+err:
+ kfree(ws);
+ kfree(lli);
+ kfree(ctxi);
+ ctxi = NULL;
+ goto out;
+}
+
+/**
+ * _cxlflash_disk_detach() - detaches a LUN from a context
+ * @sdev: SCSI device associated with LUN.
+ * @ctxi: Context owning resources.
+ * @detach: Detach ioctl data structure.
+ *
+ * As part of the detach, all per-context resources associated with the LUN
+ * are cleaned up. When detaching the last LUN for a context, the context
+ * itself is cleaned up and released.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int _cxlflash_disk_detach(struct scsi_device *sdev,
+ struct ctx_info *ctxi,
+ struct dk_cxlflash_detach *detach)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct lun_access *lun_access, *t;
+ struct dk_cxlflash_release rel;
+ bool put_ctx = false;
+
+ int i;
+ int rc = 0;
+ int lfd;
+ u64 ctxid = DECODE_CTXID(detach->context_id),
+ rctxid = detach->context_id;
+
+ dev_dbg(dev, "%s: ctxid=%llu\n", __func__, ctxid);
+
+ if (!ctxi) {
+ ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%llu)\n",
+ __func__, ctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ put_ctx = true;
+ }
+
+ /* Cleanup outstanding resources tied to this LUN */
+ if (ctxi->rht_out) {
+ marshal_det_to_rele(detach, &rel);
+ for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) {
+ if (ctxi->rht_lun[i] == lli) {
+ rel.rsrc_handle = i;
+ _cxlflash_disk_release(sdev, ctxi, &rel);
+ }
+
+ /* No need to loop further if we're done */
+ if (ctxi->rht_out == 0)
+ break;
+ }
+ }
+
+ /* Take our LUN out of context, free the node */
+ list_for_each_entry_safe(lun_access, t, &ctxi->luns, list)
+ if (lun_access->lli == lli) {
+ list_del(&lun_access->list);
+ kfree(lun_access);
+ lun_access = NULL;
+ break;
+ }
+
+ /* Tear down context following last LUN cleanup */
+ if (list_empty(&ctxi->luns)) {
+ ctxi->unavail = true;
+ mutex_unlock(&ctxi->mutex);
+ mutex_lock(&cfg->ctx_tbl_list_mutex);
+ mutex_lock(&ctxi->mutex);
+
+ /* Might not have been in error list so conditionally remove */
+ if (!list_empty(&ctxi->list))
+ list_del(&ctxi->list);
+ cfg->ctx_tbl[ctxid] = NULL;
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ mutex_unlock(&ctxi->mutex);
+
+ lfd = ctxi->lfd;
+ destroy_context(cfg, ctxi);
+ ctxi = NULL;
+ put_ctx = false;
+
+ /*
+ * As a last step, clean up external resources when not
+ * already on an external cleanup thread, i.e.: close(adap_fd).
+ *
+ * NOTE: this will free up the context from the CXL services,
+ * allowing it to dole out the same context_id on a future
+ * (or even currently in-flight) disk_attach operation.
+ */
+ if (lfd != -1)
+ sys_close(lfd);
+ }
+
+out:
+ if (put_ctx)
+ put_context(ctxi);
+ dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+static int cxlflash_disk_detach(struct scsi_device *sdev,
+ struct dk_cxlflash_detach *detach)
+{
+ return _cxlflash_disk_detach(sdev, NULL, detach);
+}
+
+/**
+ * cxlflash_cxl_release() - release handler for adapter file descriptor
+ * @inode: File-system inode associated with fd.
+ * @file: File installed with adapter file descriptor.
+ *
+ * This routine is the release handler for the fops registered with
+ * the CXL services on an initial attach for a context. It is called
+ * when a close is performed on the adapter file descriptor returned
+ * to the user. Programmatically, the user is not required to perform
+ * the close, as it is handled internally via the detach ioctl when
+ * a context is being removed. Note that nothing prevents the user
+ * from performing a close, but the user should be aware that doing
+ * so is considered catastrophic and subsequent usage of the superpipe
+ * API with previously saved off tokens will fail.
+ *
+ * When initiated from an external close (either by the user or via
+ * a process tear down), the routine derives the context reference
+ * and calls detach for each LUN associated with the context. The
+ * final detach operation will cause the context itself to be freed.
+ * Note that the saved off lfd is reset prior to calling detach to
+ * signify that the final detach should not perform a close.
+ *
+ * When initiated from a detach operation as part of the tear down
+ * of a context, the context is first completely freed and then the
+ * close is performed. This routine will fail to derive the context
+ * reference (due to the context having already been freed) and then
+ * call into the CXL release entry point.
+ *
+ * Thus, with exception to when the CXL process element (context id)
+ * lookup fails (a case that should theoretically never occur), every
+ * call into this routine results in a complete freeing of a context.
+ *
+ * As part of the detach, all per-context resources associated with the LUN
+ * are cleaned up. When detaching the last LUN for a context, the context
+ * itself is cleaned up and released.
+ *
+ * Return: 0 on success
+ */
+static int cxlflash_cxl_release(struct inode *inode, struct file *file)
+{
+ struct cxl_context *ctx = cxl_fops_get_context(file);
+ struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
+ cxl_fops);
+ struct device *dev = &cfg->dev->dev;
+ struct ctx_info *ctxi = NULL;
+ struct dk_cxlflash_detach detach = { { 0 }, 0 };
+ struct lun_access *lun_access, *t;
+ enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
+ int ctxid;
+
+ ctxid = cxl_process_element(ctx);
+ if (unlikely(ctxid < 0)) {
+ dev_err(dev, "%s: Context %p was closed! (%d)\n",
+ __func__, ctx, ctxid);
+ goto out;
+ }
+
+ ctxi = get_context(cfg, ctxid, file, ctrl);
+ if (unlikely(!ctxi)) {
+ ctxi = get_context(cfg, ctxid, file, ctrl | CTX_CTRL_CLONE);
+ if (!ctxi) {
+ dev_dbg(dev, "%s: Context %d already free!\n",
+ __func__, ctxid);
+ goto out_release;
+ }
+
+ dev_dbg(dev, "%s: Another process owns context %d!\n",
+ __func__, ctxid);
+ put_context(ctxi);
+ goto out;
+ }
+
+ dev_dbg(dev, "%s: close(%d) for context %d\n",
+ __func__, ctxi->lfd, ctxid);
+
+ /* Reset the file descriptor to indicate we're on a close() thread */
+ ctxi->lfd = -1;
+ detach.context_id = ctxi->ctxid;
+ list_for_each_entry_safe(lun_access, t, &ctxi->luns, list)
+ _cxlflash_disk_detach(lun_access->sdev, ctxi, &detach);
+out_release:
+ cxl_fd_release(inode, file);
+out:
+ dev_dbg(dev, "%s: returning\n", __func__);
+ return 0;
+}
+
+/**
+ * unmap_context() - clears a previously established mapping
+ * @ctxi: Context owning the mapping.
+ *
+ * This routine is used to switch between the error notification page
+ * (dummy page of all 1's) and the real mapping (established by the CXL
+ * fault handler).
+ */
+static void unmap_context(struct ctx_info *ctxi)
+{
+ unmap_mapping_range(ctxi->file->f_mapping, 0, 0, 1);
+}
+
+/**
+ * get_err_page() - obtains and allocates the error notification page
+ *
+ * Return: error notification page on success, NULL on failure
+ */
+static struct page *get_err_page(void)
+{
+ struct page *err_page = global.err_page;
+
+ if (unlikely(!err_page)) {
+ err_page = alloc_page(GFP_KERNEL);
+ if (unlikely(!err_page)) {
+ pr_err("%s: Unable to allocate err_page!\n", __func__);
+ goto out;
+ }
+
+ memset(page_address(err_page), -1, PAGE_SIZE);
+
+ /* Serialize update w/ other threads to avoid a leak */
+ mutex_lock(&global.mutex);
+ if (likely(!global.err_page))
+ global.err_page = err_page;
+ else {
+ __free_page(err_page);
+ err_page = global.err_page;
+ }
+ mutex_unlock(&global.mutex);
+ }
+
+out:
+ pr_debug("%s: returning err_page=%p\n", __func__, err_page);
+ return err_page;
+}
+
+/**
+ * cxlflash_mmap_fault() - mmap fault handler for adapter file descriptor
+ * @vma: VM area associated with mapping.
+ * @vmf: VM fault associated with current fault.
+ *
+ * To support error notification via MMIO, faults are 'caught' by this routine
+ * that was inserted before passing back the adapter file descriptor on attach.
+ * When a fault occurs, this routine evaluates if error recovery is active and
+ * if so, installs the error page to 'notify' the user about the error state.
+ * During normal operation, the fault is simply handled by the original fault
+ * handler that was installed by CXL services as part of initializing the
+ * adapter file descriptor. The VMA's page protection bits are toggled to
+ * indicate cached/not-cached depending on the memory backing the fault.
+ *
+ * Return: 0 on success, VM_FAULT_SIGBUS on failure
+ */
+static int cxlflash_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct file *file = vma->vm_file;
+ struct cxl_context *ctx = cxl_fops_get_context(file);
+ struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
+ cxl_fops);
+ struct device *dev = &cfg->dev->dev;
+ struct ctx_info *ctxi = NULL;
+ struct page *err_page = NULL;
+ enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
+ int rc = 0;
+ int ctxid;
+
+ ctxid = cxl_process_element(ctx);
+ if (unlikely(ctxid < 0)) {
+ dev_err(dev, "%s: Context %p was closed! (%d)\n",
+ __func__, ctx, ctxid);
+ goto err;
+ }
+
+ ctxi = get_context(cfg, ctxid, file, ctrl);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%d)\n", __func__, ctxid);
+ goto err;
+ }
+
+ dev_dbg(dev, "%s: fault(%d) for context %d\n",
+ __func__, ctxi->lfd, ctxid);
+
+ if (likely(!ctxi->err_recovery_active)) {
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ rc = ctxi->cxl_mmap_vmops->fault(vma, vmf);
+ } else {
+ dev_dbg(dev, "%s: err recovery active, use err_page!\n",
+ __func__);
+
+ err_page = get_err_page();
+ if (unlikely(!err_page)) {
+ dev_err(dev, "%s: Could not obtain error page!\n",
+ __func__);
+ rc = VM_FAULT_RETRY;
+ goto out;
+ }
+
+ get_page(err_page);
+ vmf->page = err_page;
+ vma->vm_page_prot = pgprot_cached(vma->vm_page_prot);
+ }
+
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc);
+ return rc;
+
+err:
+ rc = VM_FAULT_SIGBUS;
+ goto out;
+}
+
+/*
+ * Local MMAP vmops to 'catch' faults
+ */
+static const struct vm_operations_struct cxlflash_mmap_vmops = {
+ .fault = cxlflash_mmap_fault,
+};
+
+/**
+ * cxlflash_cxl_mmap() - mmap handler for adapter file descriptor
+ * @file: File installed with adapter file descriptor.
+ * @vma: VM area associated with mapping.
+ *
+ * Installs local mmap vmops to 'catch' faults for error notification support.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct cxl_context *ctx = cxl_fops_get_context(file);
+ struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
+ cxl_fops);
+ struct device *dev = &cfg->dev->dev;
+ struct ctx_info *ctxi = NULL;
+ enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
+ int ctxid;
+ int rc = 0;
+
+ ctxid = cxl_process_element(ctx);
+ if (unlikely(ctxid < 0)) {
+ dev_err(dev, "%s: Context %p was closed! (%d)\n",
+ __func__, ctx, ctxid);
+ rc = -EIO;
+ goto out;
+ }
+
+ ctxi = get_context(cfg, ctxid, file, ctrl);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%d)\n", __func__, ctxid);
+ rc = -EIO;
+ goto out;
+ }
+
+ dev_dbg(dev, "%s: mmap(%d) for context %d\n",
+ __func__, ctxi->lfd, ctxid);
+
+ rc = cxl_fd_mmap(file, vma);
+ if (likely(!rc)) {
+ /* Insert ourself in the mmap fault handler path */
+ ctxi->cxl_mmap_vmops = vma->vm_ops;
+ vma->vm_ops = &cxlflash_mmap_vmops;
+ }
+
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ return rc;
+}
+
+/*
+ * Local fops for adapter file descriptor
+ */
+static const struct file_operations cxlflash_cxl_fops = {
+ .owner = THIS_MODULE,
+ .mmap = cxlflash_cxl_mmap,
+ .release = cxlflash_cxl_release,
+};
+
+/**
+ * cxlflash_mark_contexts_error() - move contexts to error state and list
+ * @cfg: Internal structure associated with the host.
+ *
+ * A context is only moved over to the error list when there are no outstanding
+ * references to it. This ensures that a running operation has completed.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_mark_contexts_error(struct cxlflash_cfg *cfg)
+{
+ int i, rc = 0;
+ struct ctx_info *ctxi = NULL;
+
+ mutex_lock(&cfg->ctx_tbl_list_mutex);
+
+ for (i = 0; i < MAX_CONTEXT; i++) {
+ ctxi = cfg->ctx_tbl[i];
+ if (ctxi) {
+ mutex_lock(&ctxi->mutex);
+ cfg->ctx_tbl[i] = NULL;
+ list_add(&ctxi->list, &cfg->ctx_err_recovery);
+ ctxi->err_recovery_active = true;
+ ctxi->ctrl_map = NULL;
+ unmap_context(ctxi);
+ mutex_unlock(&ctxi->mutex);
+ }
+ }
+
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ return rc;
+}
+
+/*
+ * Dummy NULL fops
+ */
+static const struct file_operations null_fops = {
+ .owner = THIS_MODULE,
+};
+
+/**
+ * cxlflash_disk_attach() - attach a LUN to a context
+ * @sdev: SCSI device associated with LUN.
+ * @attach: Attach ioctl data structure.
+ *
+ * Creates a context and attaches LUN to it. A LUN can only be attached
+ * one time to a context (subsequent attaches for the same context/LUN pair
+ * are not supported). Additional LUNs can be attached to a context by
+ * specifying the 'reuse' flag defined in the cxlflash_ioctl.h header.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int cxlflash_disk_attach(struct scsi_device *sdev,
+ struct dk_cxlflash_attach *attach)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct cxl_ioctl_start_work *work;
+ struct ctx_info *ctxi = NULL;
+ struct lun_access *lun_access = NULL;
+ int rc = 0;
+ u32 perms;
+ int ctxid = -1;
+ u64 rctxid = 0UL;
+ struct file *file;
+
+ struct cxl_context *ctx;
+
+ int fd = -1;
+
+ /* On first attach set fileops */
+ if (atomic_read(&cfg->num_user_contexts) == 0)
+ cfg->cxl_fops = cxlflash_cxl_fops;
+
+ if (attach->num_interrupts > 4) {
+ dev_dbg(dev, "%s: Cannot support this many interrupts %llu\n",
+ __func__, attach->num_interrupts);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (gli->max_lba == 0) {
+ dev_dbg(dev, "%s: No capacity info for this LUN (%016llX)\n",
+ __func__, lli->lun_id[sdev->channel]);
+ rc = read_cap16(sdev, lli);
+ if (rc) {
+ dev_err(dev, "%s: Invalid device! (%d)\n",
+ __func__, rc);
+ rc = -ENODEV;
+ goto out;
+ }
+ dev_dbg(dev, "%s: LBA = %016llX\n", __func__, gli->max_lba);
+ dev_dbg(dev, "%s: BLK_LEN = %08X\n", __func__, gli->blk_len);
+ }
+
+ if (attach->hdr.flags & DK_CXLFLASH_ATTACH_REUSE_CONTEXT) {
+ rctxid = attach->context_id;
+ ctxi = get_context(cfg, rctxid, NULL, 0);
+ if (!ctxi) {
+ dev_dbg(dev, "%s: Bad context! (%016llX)\n",
+ __func__, rctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ list_for_each_entry(lun_access, &ctxi->luns, list)
+ if (lun_access->lli == lli) {
+ dev_dbg(dev, "%s: Already attached!\n",
+ __func__);
+ rc = -EINVAL;
+ goto out;
+ }
+ }
+
+ lun_access = kzalloc(sizeof(*lun_access), GFP_KERNEL);
+ if (unlikely(!lun_access)) {
+ dev_err(dev, "%s: Unable to allocate lun_access!\n", __func__);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ lun_access->lli = lli;
+ lun_access->sdev = sdev;
+
+ /* Non-NULL context indicates reuse */
+ if (ctxi) {
+ dev_dbg(dev, "%s: Reusing context for LUN! (%016llX)\n",
+ __func__, rctxid);
+ list_add(&lun_access->list, &ctxi->luns);
+ fd = ctxi->lfd;
+ goto out_attach;
+ }
+
+ ctx = cxl_dev_context_init(cfg->dev);
+ if (unlikely(IS_ERR_OR_NULL(ctx))) {
+ dev_err(dev, "%s: Could not initialize context %p\n",
+ __func__, ctx);
+ rc = -ENODEV;
+ goto err0;
+ }
+
+ ctxid = cxl_process_element(ctx);
+ if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+ dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
+ rc = -EPERM;
+ goto err1;
+ }
+
+ file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+ if (unlikely(fd < 0)) {
+ rc = -ENODEV;
+ dev_err(dev, "%s: Could not get file descriptor\n", __func__);
+ goto err1;
+ }
+
+ /* Translate read/write O_* flags from fcntl.h to AFU permission bits */
+ perms = SISL_RHT_PERM(attach->hdr.flags + 1);
+
+ ctxi = create_context(cfg, ctx, ctxid, fd, file, perms);
+ if (unlikely(!ctxi)) {
+ dev_err(dev, "%s: Failed to create context! (%d)\n",
+ __func__, ctxid);
+ goto err2;
+ }
+
+ work = &ctxi->work;
+ work->num_interrupts = attach->num_interrupts;
+ work->flags = CXL_START_WORK_NUM_IRQS;
+
+ rc = cxl_start_work(ctx, work);
+ if (unlikely(rc)) {
+ dev_dbg(dev, "%s: Could not start context rc=%d\n",
+ __func__, rc);
+ goto err3;
+ }
+
+ rc = afu_attach(cfg, ctxi);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: Could not attach AFU rc %d\n", __func__, rc);
+ goto err4;
+ }
+
+ /*
+ * No error paths after this point. Once the fd is installed it's
+ * visible to user space and can't be undone safely on this thread.
+ * There is no need to worry about a deadlock here because no one
+ * knows about us yet; we can be the only one holding our mutex.
+ */
+ list_add(&lun_access->list, &ctxi->luns);
+ mutex_unlock(&ctxi->mutex);
+ mutex_lock(&cfg->ctx_tbl_list_mutex);
+ mutex_lock(&ctxi->mutex);
+ cfg->ctx_tbl[ctxid] = ctxi;
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ fd_install(fd, file);
+
+out_attach:
+ attach->hdr.return_flags = 0;
+ attach->context_id = ctxi->ctxid;
+ attach->block_size = gli->blk_len;
+ attach->mmio_size = sizeof(afu->afu_map->hosts[0].harea);
+ attach->last_lba = gli->max_lba;
+ attach->max_xfer = (sdev->host->max_sectors * 512) / gli->blk_len;
+
+out:
+ attach->adap_fd = fd;
+
+ if (ctxi)
+ put_context(ctxi);
+
+ dev_dbg(dev, "%s: returning ctxid=%d fd=%d bs=%lld rc=%d llba=%lld\n",
+ __func__, ctxid, fd, attach->block_size, rc, attach->last_lba);
+ return rc;
+
+err4:
+ cxl_stop_context(ctx);
+err3:
+ put_context(ctxi);
+ destroy_context(cfg, ctxi);
+ ctxi = NULL;
+err2:
+ /*
+ * Here, we're overriding the fops with a dummy all-NULL fops because
+ * fput() calls the release fop, which will cause us to mistakenly
+ * call into the CXL code. Rather than try to add yet more complexity
+ * to that routine (cxlflash_cxl_release) we should try to fix the
+ * issue here.
+ */
+ file->f_op = &null_fops;
+ fput(file);
+ put_unused_fd(fd);
+ fd = -1;
+err1:
+ cxl_release_context(ctx);
+err0:
+ kfree(lun_access);
+ goto out;
+}
+
+/**
+ * recover_context() - recovers a context in error
+ * @cfg: Internal structure associated with the host.
+ * @ctxi: Context to release.
+ *
+ * Restablishes the state for a context-in-error.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int recover_context(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
+{
+ struct device *dev = &cfg->dev->dev;
+ int rc = 0;
+ int old_fd, fd = -1;
+ int ctxid = -1;
+ struct file *file;
+ struct cxl_context *ctx;
+ struct afu *afu = cfg->afu;
+
+ ctx = cxl_dev_context_init(cfg->dev);
+ if (unlikely(IS_ERR_OR_NULL(ctx))) {
+ dev_err(dev, "%s: Could not initialize context %p\n",
+ __func__, ctx);
+ rc = -ENODEV;
+ goto out;
+ }
+
+ ctxid = cxl_process_element(ctx);
+ if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+ dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
+ rc = -EPERM;
+ goto err1;
+ }
+
+ file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+ if (unlikely(fd < 0)) {
+ rc = -ENODEV;
+ dev_err(dev, "%s: Could not get file descriptor\n", __func__);
+ goto err1;
+ }
+
+ rc = cxl_start_work(ctx, &ctxi->work);
+ if (unlikely(rc)) {
+ dev_dbg(dev, "%s: Could not start context rc=%d\n",
+ __func__, rc);
+ goto err2;
+ }
+
+ /* Update with new MMIO area based on updated context id */
+ ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl;
+
+ rc = afu_attach(cfg, ctxi);
+ if (rc) {
+ dev_err(dev, "%s: Could not attach AFU rc %d\n", __func__, rc);
+ goto err3;
+ }
+
+ /*
+ * No error paths after this point. Once the fd is installed it's
+ * visible to user space and can't be undone safely on this thread.
+ */
+ old_fd = ctxi->lfd;
+ ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
+ ctxi->lfd = fd;
+ ctxi->ctx = ctx;
+ ctxi->file = file;
+
+ /*
+ * Put context back in table (note the reinit of the context list);
+ * we must first drop the context's mutex and then acquire it in
+ * order with the table/list mutex to avoid a deadlock - safe to do
+ * here because no one can find us at this moment in time.
+ */
+ mutex_unlock(&ctxi->mutex);
+ mutex_lock(&cfg->ctx_tbl_list_mutex);
+ mutex_lock(&ctxi->mutex);
+ list_del_init(&ctxi->list);
+ cfg->ctx_tbl[ctxid] = ctxi;
+ mutex_unlock(&cfg->ctx_tbl_list_mutex);
+ fd_install(fd, file);
+
+ /* Release the original adapter fd and associated CXL resources */
+ sys_close(old_fd);
+out:
+ dev_dbg(dev, "%s: returning ctxid=%d fd=%d rc=%d\n",
+ __func__, ctxid, fd, rc);
+ return rc;
+
+err3:
+ cxl_stop_context(ctx);
+err2:
+ fput(file);
+ put_unused_fd(fd);
+err1:
+ cxl_release_context(ctx);
+ goto out;
+}
+
+/**
+ * check_state() - checks and responds to the current adapter state
+ * @cfg: Internal structure associated with the host.
+ *
+ * This routine can block and should only be used on process context.
+ * Note that when waking up from waiting in limbo, the state is unknown
+ * and must be checked again before proceeding.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int check_state(struct cxlflash_cfg *cfg)
+{
+ struct device *dev = &cfg->dev->dev;
+ int rc = 0;
+
+retry:
+ switch (cfg->state) {
+ case STATE_LIMBO:
+ dev_dbg(dev, "%s: Limbo, going to wait...\n", __func__);
+ rc = wait_event_interruptible(cfg->limbo_waitq,
+ cfg->state != STATE_LIMBO);
+ if (unlikely(rc))
+ break;
+ goto retry;
+ case STATE_FAILTERM:
+ dev_dbg(dev, "%s: Failed/Terminating!\n", __func__);
+ rc = -ENODEV;
+ break;
+ default:
+ break;
+ }
+
+ return rc;
+}
+
+/**
+ * cxlflash_afu_recover() - initiates AFU recovery
+ * @sdev: SCSI device associated with LUN.
+ * @recover: Recover ioctl data structure.
+ *
+ * Only a single recovery is allowed at a time to avoid exhausting CXL
+ * resources (leading to recovery failure) in the event that we're up
+ * against the maximum number of contexts limit. For similar reasons,
+ * a context recovery is retried if there are multiple recoveries taking
+ * place at the same time and the failure was due to CXL services being
+ * unable to keep up.
+ *
+ * Because a user can detect an error condition before the kernel, it is
+ * quite possible for this routine to act as the kernel's EEH detection
+ * source (MMIO read of mbox_r). Because of this, there is a window of
+ * time where an EEH might have been detected but not yet 'serviced'
+ * (callback invoked, causing the device to enter limbo state). To avoid
+ * looping in this routine during that window, a 1 second sleep is in place
+ * between the time the MMIO failure is detected and the time a wait on the
+ * limbo wait queue is attempted via check_state().
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int cxlflash_afu_recover(struct scsi_device *sdev,
+ struct dk_cxlflash_recover_afu *recover)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct afu *afu = cfg->afu;
+ struct ctx_info *ctxi = NULL;
+ struct mutex *mutex = &cfg->ctx_recovery_mutex;
+ u64 ctxid = DECODE_CTXID(recover->context_id),
+ rctxid = recover->context_id;
+ long reg;
+ int lretry = 20; /* up to 2 seconds */
+ int rc = 0;
+
+ atomic_inc(&cfg->recovery_threads);
+ rc = mutex_lock_interruptible(mutex);
+ if (rc)
+ goto out;
+
+ dev_dbg(dev, "%s: reason 0x%016llX rctxid=%016llX\n",
+ __func__, recover->reason, rctxid);
+
+retry:
+ /* Ensure that this process is attached to the context */
+ ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (ctxi->err_recovery_active) {
+retry_recover:
+ rc = recover_context(cfg, ctxi);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: Recovery failed for context %llu (rc=%d)\n",
+ __func__, ctxid, rc);
+ if ((rc == -ENODEV) &&
+ ((atomic_read(&cfg->recovery_threads) > 1) ||
+ (lretry--))) {
+ dev_dbg(dev, "%s: Going to try again!\n",
+ __func__);
+ mutex_unlock(mutex);
+ msleep(100);
+ rc = mutex_lock_interruptible(mutex);
+ if (rc)
+ goto out;
+ goto retry_recover;
+ }
+
+ goto out;
+ }
+
+ ctxi->err_recovery_active = false;
+ recover->context_id = ctxi->ctxid;
+ recover->adap_fd = ctxi->lfd;
+ recover->mmio_size = sizeof(afu->afu_map->hosts[0].harea);
+ recover->hdr.return_flags |=
+ DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET;
+ goto out;
+ }
+
+ /* Test if in error state */
+ reg = readq_be(&afu->ctrl_map->mbox_r);
+ if (reg == -1) {
+ dev_dbg(dev, "%s: MMIO read fail! Wait for recovery...\n",
+ __func__);
+ mutex_unlock(&ctxi->mutex);
+ ctxi = NULL;
+ ssleep(1);
+ rc = check_state(cfg);
+ if (unlikely(rc))
+ goto out;
+ goto retry;
+ }
+
+ dev_dbg(dev, "%s: MMIO working, no recovery required!\n", __func__);
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ mutex_unlock(mutex);
+ atomic_dec_if_positive(&cfg->recovery_threads);
+ return rc;
+}
+
+/**
+ * process_sense() - evaluates and processes sense data
+ * @sdev: SCSI device associated with LUN.
+ * @verify: Verify ioctl data structure.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int process_sense(struct scsi_device *sdev,
+ struct dk_cxlflash_verify *verify)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ u64 prev_lba = gli->max_lba;
+ struct scsi_sense_hdr sshdr = { 0 };
+ int rc = 0;
+
+ rc = scsi_normalize_sense((const u8 *)&verify->sense_data,
+ DK_CXLFLASH_VERIFY_SENSE_LEN, &sshdr);
+ if (!rc) {
+ dev_err(dev, "%s: Failed to normalize sense data!\n", __func__);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ switch (sshdr.sense_key) {
+ case NO_SENSE:
+ case RECOVERED_ERROR:
+ /* fall through */
+ case NOT_READY:
+ break;
+ case UNIT_ATTENTION:
+ switch (sshdr.asc) {
+ case 0x29: /* Power on Reset or Device Reset */
+ /* fall through */
+ case 0x2A: /* Device settings/capacity changed */
+ rc = read_cap16(sdev, lli);
+ if (rc) {
+ rc = -ENODEV;
+ break;
+ }
+ if (prev_lba != gli->max_lba)
+ dev_dbg(dev, "%s: Capacity changed old=%lld "
+ "new=%lld\n", __func__, prev_lba,
+ gli->max_lba);
+ break;
+ case 0x3F: /* Report LUNs changed, Rescan. */
+ scsi_scan_host(cfg->host);
+ break;
+ default:
+ rc = -EIO;
+ break;
+ }
+ break;
+ default:
+ rc = -EIO;
+ break;
+ }
+out:
+ dev_dbg(dev, "%s: sense_key %x asc %x ascq %x rc %d\n", __func__,
+ sshdr.sense_key, sshdr.asc, sshdr.ascq, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_disk_verify() - verifies a LUN is the same and handle size changes
+ * @sdev: SCSI device associated with LUN.
+ * @verify: Verify ioctl data structure.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int cxlflash_disk_verify(struct scsi_device *sdev,
+ struct dk_cxlflash_verify *verify)
+{
+ int rc = 0;
+ struct ctx_info *ctxi = NULL;
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct sisl_rht_entry *rhte = NULL;
+ res_hndl_t rhndl = verify->rsrc_handle;
+ u64 ctxid = DECODE_CTXID(verify->context_id),
+ rctxid = verify->context_id;
+ u64 last_lba = 0;
+
+ dev_dbg(dev, "%s: ctxid=%llu rhndl=%016llX, hint=%016llX, "
+ "flags=%016llX\n", __func__, ctxid, verify->rsrc_handle,
+ verify->hint, verify->hdr.flags);
+
+ ctxi = get_context(cfg, rctxid, lli, 0);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rhte = get_rhte(ctxi, rhndl, lli);
+ if (unlikely(!rhte)) {
+ dev_dbg(dev, "%s: Bad resource handle! (%d)\n",
+ __func__, rhndl);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /*
+ * Look at the hint/sense to see if it requires us to redrive
+ * inquiry (i.e. the Unit attention is due to the WWN changing).
+ */
+ if (verify->hint & DK_CXLFLASH_VERIFY_HINT_SENSE) {
+ rc = process_sense(sdev, verify);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: Failed to validate sense data (%d)\n",
+ __func__, rc);
+ goto out;
+ }
+ }
+
+ switch (gli->mode) {
+ case MODE_PHYSICAL:
+ last_lba = gli->max_lba;
+ break;
+ case MODE_VIRTUAL:
+ /* Cast lxt_cnt to u64 for multiply to be treated as 64bit op */
+ last_lba = ((u64)rhte->lxt_cnt * MC_CHUNK_SIZE * gli->blk_len);
+ last_lba /= CXLFLASH_BLOCK_SIZE;
+ last_lba--;
+ break;
+ default:
+ WARN(1, "Unsupported LUN mode!");
+ }
+
+ verify->last_lba = last_lba;
+
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ dev_dbg(dev, "%s: returning rc=%d llba=%llX\n",
+ __func__, rc, verify->last_lba);
+ return rc;
+}
+
+/**
+ * decode_ioctl() - translates an encoded ioctl to an easily identifiable string
+ * @cmd: The ioctl command to decode.
+ *
+ * Return: A string identifying the decoded ioctl.
+ */
+static char *decode_ioctl(int cmd)
+{
+ switch (cmd) {
+ case DK_CXLFLASH_ATTACH:
+ return __stringify_1(DK_CXLFLASH_ATTACH);
+ case DK_CXLFLASH_USER_DIRECT:
+ return __stringify_1(DK_CXLFLASH_USER_DIRECT);
+ case DK_CXLFLASH_USER_VIRTUAL:
+ return __stringify_1(DK_CXLFLASH_USER_VIRTUAL);
+ case DK_CXLFLASH_VLUN_RESIZE:
+ return __stringify_1(DK_CXLFLASH_VLUN_RESIZE);
+ case DK_CXLFLASH_RELEASE:
+ return __stringify_1(DK_CXLFLASH_RELEASE);
+ case DK_CXLFLASH_DETACH:
+ return __stringify_1(DK_CXLFLASH_DETACH);
+ case DK_CXLFLASH_VERIFY:
+ return __stringify_1(DK_CXLFLASH_VERIFY);
+ case DK_CXLFLASH_VLUN_CLONE:
+ return __stringify_1(DK_CXLFLASH_VLUN_CLONE);
+ case DK_CXLFLASH_RECOVER_AFU:
+ return __stringify_1(DK_CXLFLASH_RECOVER_AFU);
+ case DK_CXLFLASH_MANAGE_LUN:
+ return __stringify_1(DK_CXLFLASH_MANAGE_LUN);
+ }
+
+ return "UNKNOWN";
+}
+
+/**
+ * cxlflash_disk_direct_open() - opens a direct (physical) disk
+ * @sdev: SCSI device associated with LUN.
+ * @arg: UDirect ioctl data structure.
+ *
+ * On successful return, the user is informed of the resource handle
+ * to be used to identify the direct lun and the size (in blocks) of
+ * the direct lun in last LBA format.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int cxlflash_disk_direct_open(struct scsi_device *sdev, void *arg)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+
+ struct dk_cxlflash_udirect *pphys = (struct dk_cxlflash_udirect *)arg;
+
+ u64 ctxid = DECODE_CTXID(pphys->context_id),
+ rctxid = pphys->context_id;
+ u64 lun_size = 0;
+ u64 last_lba = 0;
+ u64 rsrc_handle = -1;
+ u32 port = CHAN2PORT(sdev->channel);
+
+ int rc = 0;
+
+ struct ctx_info *ctxi = NULL;
+ struct sisl_rht_entry *rhte = NULL;
+
+ pr_debug("%s: ctxid=%llu ls=0x%llx\n", __func__, ctxid, lun_size);
+
+ rc = cxlflash_lun_attach(gli, MODE_PHYSICAL, false);
+ if (unlikely(rc)) {
+ dev_dbg(dev, "%s: Failed to attach to LUN! (PHYSICAL)\n",
+ __func__);
+ goto out;
+ }
+
+ ctxi = get_context(cfg, rctxid, lli, 0);
+ if (unlikely(!ctxi)) {
+ dev_dbg(dev, "%s: Bad context! (%llu)\n", __func__, ctxid);
+ rc = -EINVAL;
+ goto err1;
+ }
+
+ rhte = rhte_checkout(ctxi, lli);
+ if (unlikely(!rhte)) {
+ dev_dbg(dev, "%s: too many opens for this context\n", __func__);
+ rc = -EMFILE; /* too many opens */
+ goto err1;
+ }
+
+ rsrc_handle = (rhte - ctxi->rht_start);
+
+ rht_format1(rhte, lli->lun_id[sdev->channel], ctxi->rht_perms, port);
+ cxlflash_afu_sync(afu, ctxid, rsrc_handle, AFU_LW_SYNC);
+
+ last_lba = gli->max_lba;
+ pphys->hdr.return_flags = 0;
+ pphys->last_lba = last_lba;
+ pphys->rsrc_handle = rsrc_handle;
+
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ dev_dbg(dev, "%s: returning handle 0x%llx rc=%d llba %lld\n",
+ __func__, rsrc_handle, rc, last_lba);
+ return rc;
+
+err1:
+ cxlflash_lun_detach(gli);
+ goto out;
+}
+
+/**
+ * ioctl_common() - common IOCTL handler for driver
+ * @sdev: SCSI device associated with LUN.
+ * @cmd: IOCTL command.
+ *
+ * Handles common fencing operations that are valid for multiple ioctls. Always
+ * allow through ioctls that are cleanup oriented in nature, even when operating
+ * in a failed/terminating state.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int ioctl_common(struct scsi_device *sdev, int cmd)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ int rc = 0;
+
+ if (unlikely(!lli)) {
+ dev_dbg(dev, "%s: Unknown LUN\n", __func__);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = check_state(cfg);
+ if (unlikely(rc) && (cfg->state == STATE_FAILTERM)) {
+ switch (cmd) {
+ case DK_CXLFLASH_VLUN_RESIZE:
+ case DK_CXLFLASH_RELEASE:
+ case DK_CXLFLASH_DETACH:
+ dev_dbg(dev, "%s: Command override! (%d)\n",
+ __func__, rc);
+ rc = 0;
+ break;
+ }
+ }
+out:
+ return rc;
+}
+
+/**
+ * cxlflash_ioctl() - IOCTL handler for driver
+ * @sdev: SCSI device associated with LUN.
+ * @cmd: IOCTL command.
+ * @arg: Userspace ioctl data structure.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
+{
+ typedef int (*sioctl) (struct scsi_device *, void *);
+
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct afu *afu = cfg->afu;
+ struct dk_cxlflash_hdr *hdr;
+ char buf[sizeof(union cxlflash_ioctls)];
+ size_t size = 0;
+ bool known_ioctl = false;
+ int idx;
+ int rc = 0;
+ struct Scsi_Host *shost = sdev->host;
+ sioctl do_ioctl = NULL;
+
+ static const struct {
+ size_t size;
+ sioctl ioctl;
+ } ioctl_tbl[] = { /* NOTE: order matters here */
+ {sizeof(struct dk_cxlflash_attach), (sioctl)cxlflash_disk_attach},
+ {sizeof(struct dk_cxlflash_udirect), cxlflash_disk_direct_open},
+ {sizeof(struct dk_cxlflash_release), (sioctl)cxlflash_disk_release},
+ {sizeof(struct dk_cxlflash_detach), (sioctl)cxlflash_disk_detach},
+ {sizeof(struct dk_cxlflash_verify), (sioctl)cxlflash_disk_verify},
+ {sizeof(struct dk_cxlflash_recover_afu), (sioctl)cxlflash_afu_recover},
+ {sizeof(struct dk_cxlflash_manage_lun), (sioctl)cxlflash_manage_lun},
+ {sizeof(struct dk_cxlflash_uvirtual), cxlflash_disk_virtual_open},
+ {sizeof(struct dk_cxlflash_resize), (sioctl)cxlflash_vlun_resize},
+ {sizeof(struct dk_cxlflash_clone), (sioctl)cxlflash_disk_clone},
+ };
+
+ /* Restrict command set to physical support only for internal LUN */
+ if (afu->internal_lun)
+ switch (cmd) {
+ case DK_CXLFLASH_RELEASE:
+ case DK_CXLFLASH_USER_VIRTUAL:
+ case DK_CXLFLASH_VLUN_RESIZE:
+ case DK_CXLFLASH_VLUN_CLONE:
+ dev_dbg(dev, "%s: %s not supported for lun_mode=%d\n",
+ __func__, decode_ioctl(cmd), afu->internal_lun);
+ rc = -EINVAL;
+ goto cxlflash_ioctl_exit;
+ }
+
+ switch (cmd) {
+ case DK_CXLFLASH_ATTACH:
+ case DK_CXLFLASH_USER_DIRECT:
+ case DK_CXLFLASH_RELEASE:
+ case DK_CXLFLASH_DETACH:
+ case DK_CXLFLASH_VERIFY:
+ case DK_CXLFLASH_RECOVER_AFU:
+ case DK_CXLFLASH_USER_VIRTUAL:
+ case DK_CXLFLASH_VLUN_RESIZE:
+ case DK_CXLFLASH_VLUN_CLONE:
+ dev_dbg(dev, "%s: %s (%08X) on dev(%d/%d/%d/%llu)\n",
+ __func__, decode_ioctl(cmd), cmd, shost->host_no,
+ sdev->channel, sdev->id, sdev->lun);
+ rc = ioctl_common(sdev, cmd);
+ if (unlikely(rc))
+ goto cxlflash_ioctl_exit;
+
+ /* fall through */
+
+ case DK_CXLFLASH_MANAGE_LUN:
+ known_ioctl = true;
+ idx = _IOC_NR(cmd) - _IOC_NR(DK_CXLFLASH_ATTACH);
+ size = ioctl_tbl[idx].size;
+ do_ioctl = ioctl_tbl[idx].ioctl;
+
+ if (likely(do_ioctl))
+ break;
+
+ /* fall through */
+ default:
+ rc = -EINVAL;
+ goto cxlflash_ioctl_exit;
+ }
+
+ if (unlikely(copy_from_user(&buf, arg, size))) {
+ dev_err(dev, "%s: copy_from_user() fail! "
+ "size=%lu cmd=%d (%s) arg=%p\n",
+ __func__, size, cmd, decode_ioctl(cmd), arg);
+ rc = -EFAULT;
+ goto cxlflash_ioctl_exit;
+ }
+
+ hdr = (struct dk_cxlflash_hdr *)&buf;
+ if (hdr->version != DK_CXLFLASH_VERSION_0) {
+ dev_dbg(dev, "%s: Version %u not supported for %s\n",
+ __func__, hdr->version, decode_ioctl(cmd));
+ rc = -EINVAL;
+ goto cxlflash_ioctl_exit;
+ }
+
+ if (hdr->rsvd[0] || hdr->rsvd[1] || hdr->rsvd[2] || hdr->return_flags) {
+ dev_dbg(dev, "%s: Reserved/rflags populated!\n", __func__);
+ rc = -EINVAL;
+ goto cxlflash_ioctl_exit;
+ }
+
+ rc = do_ioctl(sdev, (void *)&buf);
+ if (likely(!rc))
+ if (unlikely(copy_to_user(arg, &buf, size))) {
+ dev_err(dev, "%s: copy_to_user() fail! "
+ "size=%lu cmd=%d (%s) arg=%p\n",
+ __func__, size, cmd, decode_ioctl(cmd), arg);
+ rc = -EFAULT;
+ }
+
+ /* fall through to exit */
+
+cxlflash_ioctl_exit:
+ if (unlikely(rc && known_ioctl))
+ dev_err(dev, "%s: ioctl %s (%08X) on dev(%d/%d/%d/%llu) "
+ "returned rc %d\n", __func__,
+ decode_ioctl(cmd), cmd, shost->host_no,
+ sdev->channel, sdev->id, sdev->lun, rc);
+ else
+ dev_dbg(dev, "%s: ioctl %s (%08X) on dev(%d/%d/%d/%llu) "
+ "returned rc %d\n", __func__, decode_ioctl(cmd),
+ cmd, shost->host_no, sdev->channel, sdev->id,
+ sdev->lun, rc);
+ return rc;
+}
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _CXLFLASH_SUPERPIPE_H
+#define _CXLFLASH_SUPERPIPE_H
+
+extern struct cxlflash_global global;
+
+/*
+ * Terminology: use afu (and not adapter) to refer to the HW.
+ * Adapter is the entire slot and includes PSL out of which
+ * only the AFU is visible to user space.
+ */
+
+/* Chunk size parms: note sislite minimum chunk size is
+ 0x10000 LBAs corresponding to a NMASK or 16.
+*/
+#define MC_CHUNK_SIZE (1 << MC_RHT_NMASK) /* in LBAs */
+
+#define MC_DISCOVERY_TIMEOUT 5 /* 5 secs */
+
+#define CHAN2PORT(_x) ((_x) + 1)
+#define PORT2CHAN(_x) ((_x) - 1)
+
+enum lun_mode {
+ MODE_NONE = 0,
+ MODE_VIRTUAL,
+ MODE_PHYSICAL
+};
+
+/* Global (entire driver, spans adapters) lun_info structure */
+struct glun_info {
+ u64 max_lba; /* from read cap(16) */
+ u32 blk_len; /* from read cap(16) */
+ enum lun_mode mode; /* NONE, VIRTUAL, PHYSICAL */
+ int users; /* Number of users w/ references to LUN */
+
+ u8 wwid[16];
+
+ struct mutex mutex;
+
+ struct blka blka;
+ struct list_head list;
+};
+
+/* Local (per-adapter) lun_info structure */
+struct llun_info {
+ u64 lun_id[CXLFLASH_NUM_FC_PORTS]; /* from REPORT_LUNS */
+ u32 lun_index; /* Index in the LUN table */
+ u32 host_no; /* host_no from Scsi_host */
+ u32 port_sel; /* What port to use for this LUN */
+ bool newly_created; /* Whether the LUN was just discovered */
+ bool in_table; /* Whether a LUN table entry was created */
+
+ u8 wwid[16]; /* Keep a duplicate copy here? */
+
+ struct glun_info *parent; /* Pointer to entry in global LUN structure */
+ struct scsi_device *sdev;
+ struct list_head list;
+};
+
+struct lun_access {
+ struct llun_info *lli;
+ struct scsi_device *sdev;
+ struct list_head list;
+};
+
+enum ctx_ctrl {
+ CTX_CTRL_CLONE = (1 << 1),
+ CTX_CTRL_ERR = (1 << 2),
+ CTX_CTRL_ERR_FALLBACK = (1 << 3),
+ CTX_CTRL_NOPID = (1 << 4),
+ CTX_CTRL_FILE = (1 << 5)
+};
+
+#define ENCODE_CTXID(_ctx, _id) (((((u64)_ctx) & 0xFFFFFFFF0) << 28) | _id)
+#define DECODE_CTXID(_val) (_val & 0xFFFFFFFF)
+
+struct ctx_info {
+ struct sisl_ctrl_map *ctrl_map; /* initialized at startup */
+ struct sisl_rht_entry *rht_start; /* 1 page (req'd for alignment),
+ alloc/free on attach/detach */
+ u32 rht_out; /* Number of checked out RHT entries */
+ u32 rht_perms; /* User-defined permissions for RHT entries */
+ struct llun_info **rht_lun; /* Mapping of RHT entries to LUNs */
+ bool *rht_needs_ws; /* User-desired write-same function per RHTE */
+
+ struct cxl_ioctl_start_work work;
+ u64 ctxid;
+ int lfd;
+ pid_t pid;
+ bool unavail;
+ bool err_recovery_active;
+ struct mutex mutex; /* Context protection */
+ struct cxl_context *ctx;
+ struct list_head luns; /* LUNs attached to this context */
+ const struct vm_operations_struct *cxl_mmap_vmops;
+ struct file *file;
+ struct list_head list; /* Link contexts in error recovery */
+};
+
+struct cxlflash_global {
+ struct mutex mutex;
+ struct list_head gluns;/* list of glun_info structs */
+ struct page *err_page; /* One page of all 0xF for error notification */
+};
+
+int cxlflash_vlun_resize(struct scsi_device *, struct dk_cxlflash_resize *);
+int _cxlflash_vlun_resize(struct scsi_device *, struct ctx_info *,
+ struct dk_cxlflash_resize *);
+
+int cxlflash_disk_release(struct scsi_device *, struct dk_cxlflash_release *);
+int _cxlflash_disk_release(struct scsi_device *, struct ctx_info *,
+ struct dk_cxlflash_release *);
+
+int cxlflash_disk_clone(struct scsi_device *, struct dk_cxlflash_clone *);
+
+int cxlflash_disk_virtual_open(struct scsi_device *, void *);
+
+int cxlflash_lun_attach(struct glun_info *, enum lun_mode, bool);
+void cxlflash_lun_detach(struct glun_info *);
+
+struct ctx_info *get_context(struct cxlflash_cfg *, u64, void *, enum ctx_ctrl);
+void put_context(struct ctx_info *);
+
+struct sisl_rht_entry *get_rhte(struct ctx_info *, res_hndl_t,
+ struct llun_info *);
+
+struct sisl_rht_entry *rhte_checkout(struct ctx_info *, struct llun_info *);
+void rhte_checkin(struct ctx_info *, struct sisl_rht_entry *);
+
+void cxlflash_ba_terminate(struct ba_lun *);
+
+int cxlflash_manage_lun(struct scsi_device *, struct dk_cxlflash_manage_lun *);
+
+#endif /* ifndef _CXLFLASH_SUPERPIPE_H */
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/syscalls.h>
+#include <misc/cxl.h>
+#include <asm/unaligned.h>
+#include <asm/bitsperlong.h>
+
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_host.h>
+#include <uapi/scsi/cxlflash_ioctl.h>
+
+#include "sislite.h"
+#include "common.h"
+#include "vlun.h"
+#include "superpipe.h"
+
+/**
+ * marshal_virt_to_resize() - translate uvirtual to resize structure
+ * @virt: Source structure from which to translate/copy.
+ * @resize: Destination structure for the translate/copy.
+ */
+static void marshal_virt_to_resize(struct dk_cxlflash_uvirtual *virt,
+ struct dk_cxlflash_resize *resize)
+{
+ resize->hdr = virt->hdr;
+ resize->context_id = virt->context_id;
+ resize->rsrc_handle = virt->rsrc_handle;
+ resize->req_size = virt->lun_size;
+ resize->last_lba = virt->last_lba;
+}
+
+/**
+ * marshal_clone_to_rele() - translate clone to release structure
+ * @clone: Source structure from which to translate/copy.
+ * @rele: Destination structure for the translate/copy.
+ */
+static void marshal_clone_to_rele(struct dk_cxlflash_clone *clone,
+ struct dk_cxlflash_release *release)
+{
+ release->hdr = clone->hdr;
+ release->context_id = clone->context_id_dst;
+}
+
+/**
+ * ba_init() - initializes a block allocator
+ * @ba_lun: Block allocator to initialize.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int ba_init(struct ba_lun *ba_lun)
+{
+ struct ba_lun_info *bali = NULL;
+ int lun_size_au = 0, i = 0;
+ int last_word_underflow = 0;
+ u64 *lam;
+
+ pr_debug("%s: Initializing LUN: lun_id = %llX, "
+ "ba_lun->lsize = %lX, ba_lun->au_size = %lX\n",
+ __func__, ba_lun->lun_id, ba_lun->lsize, ba_lun->au_size);
+
+ /* Calculate bit map size */
+ lun_size_au = ba_lun->lsize / ba_lun->au_size;
+ if (lun_size_au == 0) {
+ pr_debug("%s: Requested LUN size of 0!\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Allocate lun information container */
+ bali = kzalloc(sizeof(struct ba_lun_info), GFP_KERNEL);
+ if (unlikely(!bali)) {
+ pr_err("%s: Failed to allocate lun_info for lun_id %llX\n",
+ __func__, ba_lun->lun_id);
+ return -ENOMEM;
+ }
+
+ bali->total_aus = lun_size_au;
+ bali->lun_bmap_size = lun_size_au / BITS_PER_LONG;
+
+ if (lun_size_au % BITS_PER_LONG)
+ bali->lun_bmap_size++;
+
+ /* Allocate bitmap space */
+ bali->lun_alloc_map = kzalloc((bali->lun_bmap_size * sizeof(u64)),
+ GFP_KERNEL);
+ if (unlikely(!bali->lun_alloc_map)) {
+ pr_err("%s: Failed to allocate lun allocation map: "
+ "lun_id = %llX\n", __func__, ba_lun->lun_id);
+ kfree(bali);
+ return -ENOMEM;
+ }
+
+ /* Initialize the bit map size and set all bits to '1' */
+ bali->free_aun_cnt = lun_size_au;
+
+ for (i = 0; i < bali->lun_bmap_size; i++)
+ bali->lun_alloc_map[i] = 0xFFFFFFFFFFFFFFFFULL;
+
+ /* If the last word not fully utilized, mark extra bits as allocated */
+ last_word_underflow = (bali->lun_bmap_size * BITS_PER_LONG);
+ last_word_underflow -= bali->free_aun_cnt;
+ if (last_word_underflow > 0) {
+ lam = &bali->lun_alloc_map[bali->lun_bmap_size - 1];
+ for (i = (HIBIT - last_word_underflow + 1);
+ i < BITS_PER_LONG;
+ i++)
+ clear_bit(i, (ulong *)lam);
+ }
+
+ /* Initialize high elevator index, low/curr already at 0 from kzalloc */
+ bali->free_high_idx = bali->lun_bmap_size;
+
+ /* Allocate clone map */
+ bali->aun_clone_map = kzalloc((bali->total_aus * sizeof(u8)),
+ GFP_KERNEL);
+ if (unlikely(!bali->aun_clone_map)) {
+ pr_err("%s: Failed to allocate clone map: lun_id = %llX\n",
+ __func__, ba_lun->lun_id);
+ kfree(bali->lun_alloc_map);
+ kfree(bali);
+ return -ENOMEM;
+ }
+
+ /* Pass the allocated lun info as a handle to the user */
+ ba_lun->ba_lun_handle = bali;
+
+ pr_debug("%s: Successfully initialized the LUN: "
+ "lun_id = %llX, bitmap size = %X, free_aun_cnt = %llX\n",
+ __func__, ba_lun->lun_id, bali->lun_bmap_size,
+ bali->free_aun_cnt);
+ return 0;
+}
+
+/**
+ * find_free_range() - locates a free bit within the block allocator
+ * @low: First word in block allocator to start search.
+ * @high: Last word in block allocator to search.
+ * @bali: LUN information structure owning the block allocator to search.
+ * @bit_word: Passes back the word in the block allocator owning the free bit.
+ *
+ * Return: The bit position within the passed back word, -1 on failure
+ */
+static int find_free_range(u32 low,
+ u32 high,
+ struct ba_lun_info *bali, int *bit_word)
+{
+ int i;
+ u64 bit_pos = -1;
+ ulong *lam, num_bits;
+
+ for (i = low; i < high; i++)
+ if (bali->lun_alloc_map[i] != 0) {
+ lam = (ulong *)&bali->lun_alloc_map[i];
+ num_bits = (sizeof(*lam) * BITS_PER_BYTE);
+ bit_pos = find_first_bit(lam, num_bits);
+
+ pr_devel("%s: Found free bit %llX in lun "
+ "map entry %llX at bitmap index = %X\n",
+ __func__, bit_pos, bali->lun_alloc_map[i],
+ i);
+
+ *bit_word = i;
+ bali->free_aun_cnt--;
+ clear_bit(bit_pos, lam);
+ break;
+ }
+
+ return bit_pos;
+}
+
+/**
+ * ba_alloc() - allocates a block from the block allocator
+ * @ba_lun: Block allocator from which to allocate a block.
+ *
+ * Return: The allocated block, -1 on failure
+ */
+static u64 ba_alloc(struct ba_lun *ba_lun)
+{
+ u64 bit_pos = -1;
+ int bit_word = 0;
+ struct ba_lun_info *bali = NULL;
+
+ bali = ba_lun->ba_lun_handle;
+
+ pr_debug("%s: Received block allocation request: "
+ "lun_id = %llX, free_aun_cnt = %llX\n",
+ __func__, ba_lun->lun_id, bali->free_aun_cnt);
+
+ if (bali->free_aun_cnt == 0) {
+ pr_debug("%s: No space left on LUN: lun_id = %llX\n",
+ __func__, ba_lun->lun_id);
+ return -1ULL;
+ }
+
+ /* Search to find a free entry, curr->high then low->curr */
+ bit_pos = find_free_range(bali->free_curr_idx,
+ bali->free_high_idx, bali, &bit_word);
+ if (bit_pos == -1) {
+ bit_pos = find_free_range(bali->free_low_idx,
+ bali->free_curr_idx,
+ bali, &bit_word);
+ if (bit_pos == -1) {
+ pr_debug("%s: Could not find an allocation unit on LUN:"
+ " lun_id = %llX\n", __func__, ba_lun->lun_id);
+ return -1ULL;
+ }
+ }
+
+ /* Update the free_curr_idx */
+ if (bit_pos == HIBIT)
+ bali->free_curr_idx = bit_word + 1;
+ else
+ bali->free_curr_idx = bit_word;
+
+ pr_debug("%s: Allocating AU number %llX, on lun_id %llX, "
+ "free_aun_cnt = %llX\n", __func__,
+ ((bit_word * BITS_PER_LONG) + bit_pos), ba_lun->lun_id,
+ bali->free_aun_cnt);
+
+ return (u64) ((bit_word * BITS_PER_LONG) + bit_pos);
+}
+
+/**
+ * validate_alloc() - validates the specified block has been allocated
+ * @ba_lun_info: LUN info owning the block allocator.
+ * @aun: Block to validate.
+ *
+ * Return: 0 on success, -1 on failure
+ */
+static int validate_alloc(struct ba_lun_info *bali, u64 aun)
+{
+ int idx = 0, bit_pos = 0;
+
+ idx = aun / BITS_PER_LONG;
+ bit_pos = aun % BITS_PER_LONG;
+
+ if (test_bit(bit_pos, (ulong *)&bali->lun_alloc_map[idx]))
+ return -1;
+
+ return 0;
+}
+
+/**
+ * ba_free() - frees a block from the block allocator
+ * @ba_lun: Block allocator from which to allocate a block.
+ * @to_free: Block to free.
+ *
+ * Return: 0 on success, -1 on failure
+ */
+static int ba_free(struct ba_lun *ba_lun, u64 to_free)
+{
+ int idx = 0, bit_pos = 0;
+ struct ba_lun_info *bali = NULL;
+
+ bali = ba_lun->ba_lun_handle;
+
+ if (validate_alloc(bali, to_free)) {
+ pr_debug("%s: The AUN %llX is not allocated on lun_id %llX\n",
+ __func__, to_free, ba_lun->lun_id);
+ return -1;
+ }
+
+ pr_debug("%s: Received a request to free AU %llX on lun_id %llX, "
+ "free_aun_cnt = %llX\n", __func__, to_free, ba_lun->lun_id,
+ bali->free_aun_cnt);
+
+ if (bali->aun_clone_map[to_free] > 0) {
+ pr_debug("%s: AUN %llX on lun_id %llX has been cloned. Clone "
+ "count = %X\n", __func__, to_free, ba_lun->lun_id,
+ bali->aun_clone_map[to_free]);
+ bali->aun_clone_map[to_free]--;
+ return 0;
+ }
+
+ idx = to_free / BITS_PER_LONG;
+ bit_pos = to_free % BITS_PER_LONG;
+
+ set_bit(bit_pos, (ulong *)&bali->lun_alloc_map[idx]);
+ bali->free_aun_cnt++;
+
+ if (idx < bali->free_low_idx)
+ bali->free_low_idx = idx;
+ else if (idx > bali->free_high_idx)
+ bali->free_high_idx = idx;
+
+ pr_debug("%s: Successfully freed AU at bit_pos %X, bit map index %X on "
+ "lun_id %llX, free_aun_cnt = %llX\n", __func__, bit_pos, idx,
+ ba_lun->lun_id, bali->free_aun_cnt);
+
+ return 0;
+}
+
+/**
+ * ba_clone() - Clone a chunk of the block allocation table
+ * @ba_lun: Block allocator from which to allocate a block.
+ * @to_free: Block to free.
+ *
+ * Return: 0 on success, -1 on failure
+ */
+static int ba_clone(struct ba_lun *ba_lun, u64 to_clone)
+{
+ struct ba_lun_info *bali = ba_lun->ba_lun_handle;
+
+ if (validate_alloc(bali, to_clone)) {
+ pr_debug("%s: AUN %llX is not allocated on lun_id %llX\n",
+ __func__, to_clone, ba_lun->lun_id);
+ return -1;
+ }
+
+ pr_debug("%s: Received a request to clone AUN %llX on lun_id %llX\n",
+ __func__, to_clone, ba_lun->lun_id);
+
+ if (bali->aun_clone_map[to_clone] == MAX_AUN_CLONE_CNT) {
+ pr_debug("%s: AUN %llX on lun_id %llX hit max clones already\n",
+ __func__, to_clone, ba_lun->lun_id);
+ return -1;
+ }
+
+ bali->aun_clone_map[to_clone]++;
+
+ return 0;
+}
+
+/**
+ * ba_space() - returns the amount of free space left in the block allocator
+ * @ba_lun: Block allocator.
+ *
+ * Return: Amount of free space in block allocator
+ */
+static u64 ba_space(struct ba_lun *ba_lun)
+{
+ struct ba_lun_info *bali = ba_lun->ba_lun_handle;
+
+ return bali->free_aun_cnt;
+}
+
+/**
+ * cxlflash_ba_terminate() - frees resources associated with the block allocator
+ * @ba_lun: Block allocator.
+ *
+ * Safe to call in a partially allocated state.
+ */
+void cxlflash_ba_terminate(struct ba_lun *ba_lun)
+{
+ struct ba_lun_info *bali = ba_lun->ba_lun_handle;
+
+ if (bali) {
+ kfree(bali->aun_clone_map);
+ kfree(bali->lun_alloc_map);
+ kfree(bali);
+ ba_lun->ba_lun_handle = NULL;
+ }
+}
+
+/**
+ * init_vlun() - initializes a LUN for virtual use
+ * @lun_info: LUN information structure that owns the block allocator.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int init_vlun(struct llun_info *lli)
+{
+ int rc = 0;
+ struct glun_info *gli = lli->parent;
+ struct blka *blka = &gli->blka;
+
+ memset(blka, 0, sizeof(*blka));
+ mutex_init(&blka->mutex);
+
+ /* LUN IDs are unique per port, save the index instead */
+ blka->ba_lun.lun_id = lli->lun_index;
+ blka->ba_lun.lsize = gli->max_lba + 1;
+ blka->ba_lun.lba_size = gli->blk_len;
+
+ blka->ba_lun.au_size = MC_CHUNK_SIZE;
+ blka->nchunk = blka->ba_lun.lsize / MC_CHUNK_SIZE;
+
+ rc = ba_init(&blka->ba_lun);
+ if (unlikely(rc))
+ pr_debug("%s: cannot init block_alloc, rc=%d\n", __func__, rc);
+
+ pr_debug("%s: returning rc=%d lli=%p\n", __func__, rc, lli);
+ return rc;
+}
+
+/**
+ * write_same16() - sends a SCSI WRITE_SAME16 (0) command to specified LUN
+ * @sdev: SCSI device associated with LUN.
+ * @lba: Logical block address to start write same.
+ * @nblks: Number of logical blocks to write same.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int write_same16(struct scsi_device *sdev,
+ u64 lba,
+ u32 nblks)
+{
+ u8 *cmd_buf = NULL;
+ u8 *scsi_cmd = NULL;
+ u8 *sense_buf = NULL;
+ int rc = 0;
+ int result = 0;
+ int ws_limit = SISLITE_MAX_WS_BLOCKS;
+ u64 offset = lba;
+ int left = nblks;
+ u32 tout = sdev->request_queue->rq_timeout;
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+
+ cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL);
+ scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL);
+ sense_buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
+ if (unlikely(!cmd_buf || !scsi_cmd || !sense_buf)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ while (left > 0) {
+
+ scsi_cmd[0] = WRITE_SAME_16;
+ put_unaligned_be64(offset, &scsi_cmd[2]);
+ put_unaligned_be32(ws_limit < left ? ws_limit : left,
+ &scsi_cmd[10]);
+
+ result = scsi_execute(sdev, scsi_cmd, DMA_TO_DEVICE, cmd_buf,
+ CMD_BUFSIZE, sense_buf, tout, 5, 0, NULL);
+ if (result) {
+ dev_err_ratelimited(dev, "%s: command failed for "
+ "offset %lld result=0x%x\n",
+ __func__, offset, result);
+ rc = -EIO;
+ goto out;
+ }
+ left -= ws_limit;
+ offset += ws_limit;
+ }
+
+out:
+ kfree(cmd_buf);
+ kfree(scsi_cmd);
+ kfree(sense_buf);
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * grow_lxt() - expands the translation table associated with the specified RHTE
+ * @afu: AFU associated with the host.
+ * @sdev: SCSI device associated with LUN.
+ * @ctxid: Context ID of context owning the RHTE.
+ * @rhndl: Resource handle associated with the RHTE.
+ * @rhte: Resource handle entry (RHTE).
+ * @new_size: Number of translation entries associated with RHTE.
+ *
+ * By design, this routine employs a 'best attempt' allocation and will
+ * truncate the requested size down if there is not sufficient space in
+ * the block allocator to satisfy the request but there does exist some
+ * amount of space. The user is made aware of this by returning the size
+ * allocated.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int grow_lxt(struct afu *afu,
+ struct scsi_device *sdev,
+ ctx_hndl_t ctxid,
+ res_hndl_t rhndl,
+ struct sisl_rht_entry *rhte,
+ u64 *new_size)
+{
+ struct sisl_lxt_entry *lxt = NULL, *lxt_old = NULL;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct blka *blka = &gli->blka;
+ u32 av_size;
+ u32 ngrps, ngrps_old;
+ u64 aun; /* chunk# allocated by block allocator */
+ u64 delta = *new_size - rhte->lxt_cnt;
+ u64 my_new_size;
+ int i, rc = 0;
+
+ /*
+ * Check what is available in the block allocator before re-allocating
+ * LXT array. This is done up front under the mutex which must not be
+ * released until after allocation is complete.
+ */
+ mutex_lock(&blka->mutex);
+ av_size = ba_space(&blka->ba_lun);
+ if (unlikely(av_size <= 0)) {
+ pr_debug("%s: ba_space error: av_size %d\n", __func__, av_size);
+ mutex_unlock(&blka->mutex);
+ rc = -ENOSPC;
+ goto out;
+ }
+
+ if (av_size < delta)
+ delta = av_size;
+
+ lxt_old = rhte->lxt_start;
+ ngrps_old = LXT_NUM_GROUPS(rhte->lxt_cnt);
+ ngrps = LXT_NUM_GROUPS(rhte->lxt_cnt + delta);
+
+ if (ngrps != ngrps_old) {
+ /* reallocate to fit new size */
+ lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps),
+ GFP_KERNEL);
+ if (unlikely(!lxt)) {
+ mutex_unlock(&blka->mutex);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* copy over all old entries */
+ memcpy(lxt, lxt_old, (sizeof(*lxt) * rhte->lxt_cnt));
+ } else
+ lxt = lxt_old;
+
+ /* nothing can fail from now on */
+ my_new_size = rhte->lxt_cnt + delta;
+
+ /* add new entries to the end */
+ for (i = rhte->lxt_cnt; i < my_new_size; i++) {
+ /*
+ * Due to the earlier check of available space, ba_alloc
+ * cannot fail here. If it did due to internal error,
+ * leave a rlba_base of -1u which will likely be a
+ * invalid LUN (too large).
+ */
+ aun = ba_alloc(&blka->ba_lun);
+ if ((aun == -1ULL) || (aun >= blka->nchunk))
+ pr_debug("%s: ba_alloc error: allocated chunk# %llX, "
+ "max %llX\n", __func__, aun, blka->nchunk - 1);
+
+ /* select both ports, use r/w perms from RHT */
+ lxt[i].rlba_base = ((aun << MC_CHUNK_SHIFT) |
+ (lli->lun_index << LXT_LUNIDX_SHIFT) |
+ (RHT_PERM_RW << LXT_PERM_SHIFT |
+ lli->port_sel));
+ }
+
+ mutex_unlock(&blka->mutex);
+
+ /*
+ * The following sequence is prescribed in the SISlite spec
+ * for syncing up with the AFU when adding LXT entries.
+ */
+ dma_wmb(); /* Make LXT updates are visible */
+
+ rhte->lxt_start = lxt;
+ dma_wmb(); /* Make RHT entry's LXT table update visible */
+
+ rhte->lxt_cnt = my_new_size;
+ dma_wmb(); /* Make RHT entry's LXT table size update visible */
+
+ cxlflash_afu_sync(afu, ctxid, rhndl, AFU_LW_SYNC);
+
+ /* free old lxt if reallocated */
+ if (lxt != lxt_old)
+ kfree(lxt_old);
+ *new_size = my_new_size;
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * shrink_lxt() - reduces translation table associated with the specified RHTE
+ * @afu: AFU associated with the host.
+ * @sdev: SCSI device associated with LUN.
+ * @rhndl: Resource handle associated with the RHTE.
+ * @rhte: Resource handle entry (RHTE).
+ * @ctxi: Context owning resources.
+ * @new_size: Number of translation entries associated with RHTE.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int shrink_lxt(struct afu *afu,
+ struct scsi_device *sdev,
+ res_hndl_t rhndl,
+ struct sisl_rht_entry *rhte,
+ struct ctx_info *ctxi,
+ u64 *new_size)
+{
+ struct sisl_lxt_entry *lxt, *lxt_old;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct blka *blka = &gli->blka;
+ ctx_hndl_t ctxid = DECODE_CTXID(ctxi->ctxid);
+ bool needs_ws = ctxi->rht_needs_ws[rhndl];
+ bool needs_sync = !ctxi->err_recovery_active;
+ u32 ngrps, ngrps_old;
+ u64 aun; /* chunk# allocated by block allocator */
+ u64 delta = rhte->lxt_cnt - *new_size;
+ u64 my_new_size;
+ int i, rc = 0;
+
+ lxt_old = rhte->lxt_start;
+ ngrps_old = LXT_NUM_GROUPS(rhte->lxt_cnt);
+ ngrps = LXT_NUM_GROUPS(rhte->lxt_cnt - delta);
+
+ if (ngrps != ngrps_old) {
+ /* Reallocate to fit new size unless new size is 0 */
+ if (ngrps) {
+ lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps),
+ GFP_KERNEL);
+ if (unlikely(!lxt)) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* Copy over old entries that will remain */
+ memcpy(lxt, lxt_old,
+ (sizeof(*lxt) * (rhte->lxt_cnt - delta)));
+ } else
+ lxt = NULL;
+ } else
+ lxt = lxt_old;
+
+ /* Nothing can fail from now on */
+ my_new_size = rhte->lxt_cnt - delta;
+
+ /*
+ * The following sequence is prescribed in the SISlite spec
+ * for syncing up with the AFU when removing LXT entries.
+ */
+ rhte->lxt_cnt = my_new_size;
+ dma_wmb(); /* Make RHT entry's LXT table size update visible */
+
+ rhte->lxt_start = lxt;
+ dma_wmb(); /* Make RHT entry's LXT table update visible */
+
+ if (needs_sync)
+ cxlflash_afu_sync(afu, ctxid, rhndl, AFU_HW_SYNC);
+
+ if (needs_ws) {
+ /*
+ * Mark the context as unavailable, so that we can release
+ * the mutex safely.
+ */
+ ctxi->unavail = true;
+ mutex_unlock(&ctxi->mutex);
+ }
+
+ /* Free LBAs allocated to freed chunks */
+ mutex_lock(&blka->mutex);
+ for (i = delta - 1; i >= 0; i--) {
+ /* Mask the higher 48 bits before shifting, even though
+ * it is a noop
+ */
+ aun = (lxt_old[my_new_size + i].rlba_base & SISL_ASTATUS_MASK);
+ aun = (aun >> MC_CHUNK_SHIFT);
+ if (needs_ws)
+ write_same16(sdev, aun, MC_CHUNK_SIZE);
+ ba_free(&blka->ba_lun, aun);
+ }
+ mutex_unlock(&blka->mutex);
+
+ if (needs_ws) {
+ /* Make the context visible again */
+ mutex_lock(&ctxi->mutex);
+ ctxi->unavail = false;
+ }
+
+ /* Free old lxt if reallocated */
+ if (lxt != lxt_old)
+ kfree(lxt_old);
+ *new_size = my_new_size;
+out:
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * _cxlflash_vlun_resize() - changes the size of a virtual lun
+ * @sdev: SCSI device associated with LUN owning virtual LUN.
+ * @ctxi: Context owning resources.
+ * @resize: Resize ioctl data structure.
+ *
+ * On successful return, the user is informed of the new size (in blocks)
+ * of the virtual lun in last LBA format. When the size of the virtual
+ * lun is zero, the last LBA is reflected as -1. See comment in the
+ * prologue for _cxlflash_disk_release() regarding AFU syncs and contexts
+ * on the error recovery list.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int _cxlflash_vlun_resize(struct scsi_device *sdev,
+ struct ctx_info *ctxi,
+ struct dk_cxlflash_resize *resize)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct afu *afu = cfg->afu;
+ bool put_ctx = false;
+
+ res_hndl_t rhndl = resize->rsrc_handle;
+ u64 new_size;
+ u64 nsectors;
+ u64 ctxid = DECODE_CTXID(resize->context_id),
+ rctxid = resize->context_id;
+
+ struct sisl_rht_entry *rhte;
+
+ int rc = 0;
+
+ /*
+ * The requested size (req_size) is always assumed to be in 4k blocks,
+ * so we have to convert it here from 4k to chunk size.
+ */
+ nsectors = (resize->req_size * CXLFLASH_BLOCK_SIZE) / gli->blk_len;
+ new_size = DIV_ROUND_UP(nsectors, MC_CHUNK_SIZE);
+
+ pr_debug("%s: ctxid=%llu rhndl=0x%llx, req_size=0x%llx,"
+ "new_size=%llx\n", __func__, ctxid, resize->rsrc_handle,
+ resize->req_size, new_size);
+
+ if (unlikely(gli->mode != MODE_VIRTUAL)) {
+ pr_debug("%s: LUN mode does not support resize! (%d)\n",
+ __func__, gli->mode);
+ rc = -EINVAL;
+ goto out;
+
+ }
+
+ if (!ctxi) {
+ ctxi = get_context(cfg, rctxid, lli, CTX_CTRL_ERR_FALLBACK);
+ if (unlikely(!ctxi)) {
+ pr_debug("%s: Bad context! (%llu)\n", __func__, ctxid);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ put_ctx = true;
+ }
+
+ rhte = get_rhte(ctxi, rhndl, lli);
+ if (unlikely(!rhte)) {
+ pr_debug("%s: Bad resource handle! (%u)\n", __func__, rhndl);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (new_size > rhte->lxt_cnt)
+ rc = grow_lxt(afu, sdev, ctxid, rhndl, rhte, &new_size);
+ else if (new_size < rhte->lxt_cnt)
+ rc = shrink_lxt(afu, sdev, rhndl, rhte, ctxi, &new_size);
+
+ resize->hdr.return_flags = 0;
+ resize->last_lba = (new_size * MC_CHUNK_SIZE * gli->blk_len);
+ resize->last_lba /= CXLFLASH_BLOCK_SIZE;
+ resize->last_lba--;
+
+out:
+ if (put_ctx)
+ put_context(ctxi);
+ pr_debug("%s: resized to %lld returning rc=%d\n",
+ __func__, resize->last_lba, rc);
+ return rc;
+}
+
+int cxlflash_vlun_resize(struct scsi_device *sdev,
+ struct dk_cxlflash_resize *resize)
+{
+ return _cxlflash_vlun_resize(sdev, NULL, resize);
+}
+
+/**
+ * cxlflash_restore_luntable() - Restore LUN table to prior state
+ * @cfg: Internal structure associated with the host.
+ */
+void cxlflash_restore_luntable(struct cxlflash_cfg *cfg)
+{
+ struct llun_info *lli, *temp;
+ u32 chan;
+ u32 lind;
+ struct afu *afu = cfg->afu;
+ struct sisl_global_map *agm = &afu->afu_map->global;
+
+ mutex_lock(&global.mutex);
+
+ list_for_each_entry_safe(lli, temp, &cfg->lluns, list) {
+ if (!lli->in_table)
+ continue;
+
+ lind = lli->lun_index;
+
+ if (lli->port_sel == BOTH_PORTS) {
+ writeq_be(lli->lun_id[0], &agm->fc_port[0][lind]);
+ writeq_be(lli->lun_id[1], &agm->fc_port[1][lind]);
+ pr_debug("%s: Virtual LUN on slot %d id0=%llx, "
+ "id1=%llx\n", __func__, lind,
+ lli->lun_id[0], lli->lun_id[1]);
+ } else {
+ chan = PORT2CHAN(lli->port_sel);
+ writeq_be(lli->lun_id[chan], &agm->fc_port[chan][lind]);
+ pr_debug("%s: Virtual LUN on slot %d chan=%d, "
+ "id=%llx\n", __func__, lind, chan,
+ lli->lun_id[chan]);
+ }
+ }
+
+ mutex_unlock(&global.mutex);
+}
+
+/**
+ * init_luntable() - write an entry in the LUN table
+ * @cfg: Internal structure associated with the host.
+ * @lli: Per adapter LUN information structure.
+ *
+ * On successful return, a LUN table entry is created.
+ * At the top for LUNs visible on both ports.
+ * At the bottom for LUNs visible only on one port.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int init_luntable(struct cxlflash_cfg *cfg, struct llun_info *lli)
+{
+ u32 chan;
+ u32 lind;
+ int rc = 0;
+ struct afu *afu = cfg->afu;
+ struct sisl_global_map *agm = &afu->afu_map->global;
+
+ mutex_lock(&global.mutex);
+
+ if (lli->in_table)
+ goto out;
+
+ if (lli->port_sel == BOTH_PORTS) {
+ /*
+ * If this LUN is visible from both ports, we will put
+ * it in the top half of the LUN table.
+ */
+ if ((cfg->promote_lun_index == cfg->last_lun_index[0]) ||
+ (cfg->promote_lun_index == cfg->last_lun_index[1])) {
+ rc = -ENOSPC;
+ goto out;
+ }
+
+ lind = lli->lun_index = cfg->promote_lun_index;
+ writeq_be(lli->lun_id[0], &agm->fc_port[0][lind]);
+ writeq_be(lli->lun_id[1], &agm->fc_port[1][lind]);
+ cfg->promote_lun_index++;
+ pr_debug("%s: Virtual LUN on slot %d id0=%llx, id1=%llx\n",
+ __func__, lind, lli->lun_id[0], lli->lun_id[1]);
+ } else {
+ /*
+ * If this LUN is visible only from one port, we will put
+ * it in the bottom half of the LUN table.
+ */
+ chan = PORT2CHAN(lli->port_sel);
+ if (cfg->promote_lun_index == cfg->last_lun_index[chan]) {
+ rc = -ENOSPC;
+ goto out;
+ }
+
+ lind = lli->lun_index = cfg->last_lun_index[chan];
+ writeq_be(lli->lun_id[chan], &agm->fc_port[chan][lind]);
+ cfg->last_lun_index[chan]--;
+ pr_debug("%s: Virtual LUN on slot %d chan=%d, id=%llx\n",
+ __func__, lind, chan, lli->lun_id[chan]);
+ }
+
+ lli->in_table = true;
+out:
+ mutex_unlock(&global.mutex);
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+}
+
+/**
+ * cxlflash_disk_virtual_open() - open a virtual disk of specified size
+ * @sdev: SCSI device associated with LUN owning virtual LUN.
+ * @arg: UVirtual ioctl data structure.
+ *
+ * On successful return, the user is informed of the resource handle
+ * to be used to identify the virtual lun and the size (in blocks) of
+ * the virtual lun in last LBA format. When the size of the virtual lun
+ * is zero, the last LBA is reflected as -1.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_disk_virtual_open(struct scsi_device *sdev, void *arg)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct device *dev = &cfg->dev->dev;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+
+ struct dk_cxlflash_uvirtual *virt = (struct dk_cxlflash_uvirtual *)arg;
+ struct dk_cxlflash_resize resize;
+
+ u64 ctxid = DECODE_CTXID(virt->context_id),
+ rctxid = virt->context_id;
+ u64 lun_size = virt->lun_size;
+ u64 last_lba = 0;
+ u64 rsrc_handle = -1;
+
+ int rc = 0;
+
+ struct ctx_info *ctxi = NULL;
+ struct sisl_rht_entry *rhte = NULL;
+
+ pr_debug("%s: ctxid=%llu ls=0x%llx\n", __func__, ctxid, lun_size);
+
+ mutex_lock(&gli->mutex);
+ if (gli->mode == MODE_NONE) {
+ /* Setup the LUN table and block allocator on first call */
+ rc = init_luntable(cfg, lli);
+ if (rc) {
+ dev_err(dev, "%s: call to init_luntable failed "
+ "rc=%d!\n", __func__, rc);
+ goto err0;
+ }
+
+ rc = init_vlun(lli);
+ if (rc) {
+ dev_err(dev, "%s: call to init_vlun failed rc=%d!\n",
+ __func__, rc);
+ rc = -ENOMEM;
+ goto err0;
+ }
+ }
+
+ rc = cxlflash_lun_attach(gli, MODE_VIRTUAL, true);
+ if (unlikely(rc)) {
+ dev_err(dev, "%s: Failed to attach to LUN! (VIRTUAL)\n",
+ __func__);
+ goto err0;
+ }
+ mutex_unlock(&gli->mutex);
+
+ ctxi = get_context(cfg, rctxid, lli, 0);
+ if (unlikely(!ctxi)) {
+ dev_err(dev, "%s: Bad context! (%llu)\n", __func__, ctxid);
+ rc = -EINVAL;
+ goto err1;
+ }
+
+ rhte = rhte_checkout(ctxi, lli);
+ if (unlikely(!rhte)) {
+ dev_err(dev, "%s: too many opens for this context\n", __func__);
+ rc = -EMFILE; /* too many opens */
+ goto err1;
+ }
+
+ rsrc_handle = (rhte - ctxi->rht_start);
+
+ /* Populate RHT format 0 */
+ rhte->nmask = MC_RHT_NMASK;
+ rhte->fp = SISL_RHT_FP(0U, ctxi->rht_perms);
+
+ /* Resize even if requested size is 0 */
+ marshal_virt_to_resize(virt, &resize);
+ resize.rsrc_handle = rsrc_handle;
+ rc = _cxlflash_vlun_resize(sdev, ctxi, &resize);
+ if (rc) {
+ dev_err(dev, "%s: resize failed rc %d\n", __func__, rc);
+ goto err2;
+ }
+ last_lba = resize.last_lba;
+
+ if (virt->hdr.flags & DK_CXLFLASH_UVIRTUAL_NEED_WRITE_SAME)
+ ctxi->rht_needs_ws[rsrc_handle] = true;
+
+ virt->hdr.return_flags = 0;
+ virt->last_lba = last_lba;
+ virt->rsrc_handle = rsrc_handle;
+
+out:
+ if (likely(ctxi))
+ put_context(ctxi);
+ pr_debug("%s: returning handle 0x%llx rc=%d llba %lld\n",
+ __func__, rsrc_handle, rc, last_lba);
+ return rc;
+
+err2:
+ rhte_checkin(ctxi, rhte);
+err1:
+ cxlflash_lun_detach(gli);
+ goto out;
+err0:
+ /* Special common cleanup prior to successful LUN attach */
+ cxlflash_ba_terminate(&gli->blka.ba_lun);
+ mutex_unlock(&gli->mutex);
+ goto out;
+}
+
+/**
+ * clone_lxt() - copies translation tables from source to destination RHTE
+ * @afu: AFU associated with the host.
+ * @blka: Block allocator associated with LUN.
+ * @ctxid: Context ID of context owning the RHTE.
+ * @rhndl: Resource handle associated with the RHTE.
+ * @rhte: Destination resource handle entry (RHTE).
+ * @rhte_src: Source resource handle entry (RHTE).
+ *
+ * Return: 0 on success, -errno on failure
+ */
+static int clone_lxt(struct afu *afu,
+ struct blka *blka,
+ ctx_hndl_t ctxid,
+ res_hndl_t rhndl,
+ struct sisl_rht_entry *rhte,
+ struct sisl_rht_entry *rhte_src)
+{
+ struct sisl_lxt_entry *lxt;
+ u32 ngrps;
+ u64 aun; /* chunk# allocated by block allocator */
+ int i, j;
+
+ ngrps = LXT_NUM_GROUPS(rhte_src->lxt_cnt);
+
+ if (ngrps) {
+ /* allocate new LXTs for clone */
+ lxt = kzalloc((sizeof(*lxt) * LXT_GROUP_SIZE * ngrps),
+ GFP_KERNEL);
+ if (unlikely(!lxt))
+ return -ENOMEM;
+
+ /* copy over */
+ memcpy(lxt, rhte_src->lxt_start,
+ (sizeof(*lxt) * rhte_src->lxt_cnt));
+
+ /* clone the LBAs in block allocator via ref_cnt */
+ mutex_lock(&blka->mutex);
+ for (i = 0; i < rhte_src->lxt_cnt; i++) {
+ aun = (lxt[i].rlba_base >> MC_CHUNK_SHIFT);
+ if (ba_clone(&blka->ba_lun, aun) == -1ULL) {
+ /* free the clones already made */
+ for (j = 0; j < i; j++) {
+ aun = (lxt[j].rlba_base >>
+ MC_CHUNK_SHIFT);
+ ba_free(&blka->ba_lun, aun);
+ }
+
+ mutex_unlock(&blka->mutex);
+ kfree(lxt);
+ return -EIO;
+ }
+ }
+ mutex_unlock(&blka->mutex);
+ } else {
+ lxt = NULL;
+ }
+
+ /*
+ * The following sequence is prescribed in the SISlite spec
+ * for syncing up with the AFU when adding LXT entries.
+ */
+ dma_wmb(); /* Make LXT updates are visible */
+
+ rhte->lxt_start = lxt;
+ dma_wmb(); /* Make RHT entry's LXT table update visible */
+
+ rhte->lxt_cnt = rhte_src->lxt_cnt;
+ dma_wmb(); /* Make RHT entry's LXT table size update visible */
+
+ cxlflash_afu_sync(afu, ctxid, rhndl, AFU_LW_SYNC);
+
+ pr_debug("%s: returning\n", __func__);
+ return 0;
+}
+
+/**
+ * cxlflash_disk_clone() - clone a context by making snapshot of another
+ * @sdev: SCSI device associated with LUN owning virtual LUN.
+ * @clone: Clone ioctl data structure.
+ *
+ * This routine effectively performs cxlflash_disk_open operation for each
+ * in-use virtual resource in the source context. Note that the destination
+ * context must be in pristine state and cannot have any resource handles
+ * open at the time of the clone.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int cxlflash_disk_clone(struct scsi_device *sdev,
+ struct dk_cxlflash_clone *clone)
+{
+ struct cxlflash_cfg *cfg = (struct cxlflash_cfg *)sdev->host->hostdata;
+ struct llun_info *lli = sdev->hostdata;
+ struct glun_info *gli = lli->parent;
+ struct blka *blka = &gli->blka;
+ struct afu *afu = cfg->afu;
+ struct dk_cxlflash_release release = { { 0 }, 0 };
+
+ struct ctx_info *ctxi_src = NULL,
+ *ctxi_dst = NULL;
+ struct lun_access *lun_access_src, *lun_access_dst;
+ u32 perms;
+ u64 ctxid_src = DECODE_CTXID(clone->context_id_src),
+ ctxid_dst = DECODE_CTXID(clone->context_id_dst),
+ rctxid_src = clone->context_id_src,
+ rctxid_dst = clone->context_id_dst;
+ int adap_fd_src = clone->adap_fd_src;
+ int i, j;
+ int rc = 0;
+ bool found;
+ LIST_HEAD(sidecar);
+
+ pr_debug("%s: ctxid_src=%llu ctxid_dst=%llu adap_fd_src=%d\n",
+ __func__, ctxid_src, ctxid_dst, adap_fd_src);
+
+ /* Do not clone yourself */
+ if (unlikely(rctxid_src == rctxid_dst)) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (unlikely(gli->mode != MODE_VIRTUAL)) {
+ rc = -EINVAL;
+ pr_debug("%s: Clone not supported on physical LUNs! (%d)\n",
+ __func__, gli->mode);
+ goto out;
+ }
+
+ ctxi_src = get_context(cfg, rctxid_src, lli, CTX_CTRL_CLONE);
+ ctxi_dst = get_context(cfg, rctxid_dst, lli, 0);
+ if (unlikely(!ctxi_src || !ctxi_dst)) {
+ pr_debug("%s: Bad context! (%llu,%llu)\n", __func__,
+ ctxid_src, ctxid_dst);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (unlikely(adap_fd_src != ctxi_src->lfd)) {
+ pr_debug("%s: Invalid source adapter fd! (%d)\n",
+ __func__, adap_fd_src);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /* Verify there is no open resource handle in the destination context */
+ for (i = 0; i < MAX_RHT_PER_CONTEXT; i++)
+ if (ctxi_dst->rht_start[i].nmask != 0) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ /* Clone LUN access list */
+ list_for_each_entry(lun_access_src, &ctxi_src->luns, list) {
+ found = false;
+ list_for_each_entry(lun_access_dst, &ctxi_dst->luns, list)
+ if (lun_access_dst->sdev == lun_access_src->sdev) {
+ found = true;
+ break;
+ }
+
+ if (!found) {
+ lun_access_dst = kzalloc(sizeof(*lun_access_dst),
+ GFP_KERNEL);
+ if (unlikely(!lun_access_dst)) {
+ pr_err("%s: Unable to allocate lun_access!\n",
+ __func__);
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ *lun_access_dst = *lun_access_src;
+ list_add(&lun_access_dst->list, &sidecar);
+ }
+ }
+
+ if (unlikely(!ctxi_src->rht_out)) {
+ pr_debug("%s: Nothing to clone!\n", __func__);
+ goto out_success;
+ }
+
+ /* User specified permission on attach */
+ perms = ctxi_dst->rht_perms;
+
+ /*
+ * Copy over checked-out RHT (and their associated LXT) entries by
+ * hand, stopping after we've copied all outstanding entries and
+ * cleaning up if the clone fails.
+ *
+ * Note: This loop is equivalent to performing cxlflash_disk_open and
+ * cxlflash_vlun_resize. As such, LUN accounting needs to be taken into
+ * account by attaching after each successful RHT entry clone. In the
+ * event that a clone failure is experienced, the LUN detach is handled
+ * via the cleanup performed by _cxlflash_disk_release.
+ */
+ for (i = 0; i < MAX_RHT_PER_CONTEXT; i++) {
+ if (ctxi_src->rht_out == ctxi_dst->rht_out)
+ break;
+ if (ctxi_src->rht_start[i].nmask == 0)
+ continue;
+
+ /* Consume a destination RHT entry */
+ ctxi_dst->rht_out++;
+ ctxi_dst->rht_start[i].nmask = ctxi_src->rht_start[i].nmask;
+ ctxi_dst->rht_start[i].fp =
+ SISL_RHT_FP_CLONE(ctxi_src->rht_start[i].fp, perms);
+ ctxi_dst->rht_lun[i] = ctxi_src->rht_lun[i];
+
+ rc = clone_lxt(afu, blka, ctxid_dst, i,
+ &ctxi_dst->rht_start[i],
+ &ctxi_src->rht_start[i]);
+ if (rc) {
+ marshal_clone_to_rele(clone, &release);
+ for (j = 0; j < i; j++) {
+ release.rsrc_handle = j;
+ _cxlflash_disk_release(sdev, ctxi_dst,
+ &release);
+ }
+
+ /* Put back the one we failed on */
+ rhte_checkin(ctxi_dst, &ctxi_dst->rht_start[i]);
+ goto err;
+ }
+
+ cxlflash_lun_attach(gli, gli->mode, false);
+ }
+
+out_success:
+ list_splice(&sidecar, &ctxi_dst->luns);
+ sys_close(adap_fd_src);
+
+ /* fall through */
+out:
+ if (ctxi_src)
+ put_context(ctxi_src);
+ if (ctxi_dst)
+ put_context(ctxi_dst);
+ pr_debug("%s: returning rc=%d\n", __func__, rc);
+ return rc;
+
+err:
+ list_for_each_entry_safe(lun_access_src, lun_access_dst, &sidecar, list)
+ kfree(lun_access_src);
+ goto out;
+}
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _CXLFLASH_VLUN_H
+#define _CXLFLASH_VLUN_H
+
+/* RHT - Resource Handle Table */
+#define MC_RHT_NMASK 16 /* in bits */
+#define MC_CHUNK_SHIFT MC_RHT_NMASK /* shift to go from LBA to chunk# */
+
+#define HIBIT (BITS_PER_LONG - 1)
+
+#define MAX_AUN_CLONE_CNT 0xFF
+
+/*
+ * LXT - LBA Translation Table
+ *
+ * +-------+-------+-------+-------+-------+-------+-------+---+---+
+ * | RLBA_BASE |LUN_IDX| P |SEL|
+ * +-------+-------+-------+-------+-------+-------+-------+---+---+
+ *
+ * The LXT Entry contains the physical LBA where the chunk starts (RLBA_BASE).
+ * AFU ORes the low order bits from the virtual LBA (offset into the chunk)
+ * with RLBA_BASE. The result is the physical LBA to be sent to storage.
+ * The LXT Entry also contains an index to a LUN TBL and a bitmask of which
+ * outgoing (FC) * ports can be selected. The port select bit-mask is ANDed
+ * with a global port select bit-mask maintained by the driver.
+ * In addition, it has permission bits that are ANDed with the
+ * RHT permissions to arrive at the final permissions for the chunk.
+ *
+ * LXT tables are allocated dynamically in groups. This is done to avoid
+ * a malloc/free overhead each time the LXT has to grow or shrink.
+ *
+ * Based on the current lxt_cnt (used), it is always possible to know
+ * how many are allocated (used+free). The number of allocated entries is
+ * not stored anywhere.
+ *
+ * The LXT table is re-allocated whenever it needs to cross into another group.
+*/
+#define LXT_GROUP_SIZE 8
+#define LXT_NUM_GROUPS(lxt_cnt) (((lxt_cnt) + 7)/8) /* alloc'ed groups */
+#define LXT_LUNIDX_SHIFT 8 /* LXT entry, shift for LUN index */
+#define LXT_PERM_SHIFT 4 /* LXT entry, shift for permission bits */
+
+struct ba_lun_info {
+ u64 *lun_alloc_map;
+ u32 lun_bmap_size;
+ u32 total_aus;
+ u64 free_aun_cnt;
+
+ /* indices to be used for elevator lookup of free map */
+ u32 free_low_idx;
+ u32 free_curr_idx;
+ u32 free_high_idx;
+
+ u8 *aun_clone_map;
+};
+
+struct ba_lun {
+ u64 lun_id;
+ u64 wwpn;
+ size_t lsize; /* LUN size in number of LBAs */
+ size_t lba_size; /* LBA size in number of bytes */
+ size_t au_size; /* Allocation Unit size in number of LBAs */
+ struct ba_lun_info *ba_lun_handle;
+};
+
+/* Block Allocator */
+struct blka {
+ struct ba_lun ba_lun;
+ u64 nchunk; /* number of chunks */
+ struct mutex mutex;
+};
+
+#endif /* ifndef _CXLFLASH_SUPERPIPE_H */
/*
* Disk Array driver for HP Smart Array SAS controllers
- * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
+ * Copyright 2014-2015 PMC-Sierra, Inc.
+ * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
+ * Questions/Comments/Bugfixes to storagedev@pmcs.com
*
*/
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE},
{PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0581},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0582},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0583},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0584},
+ {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0585},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D},
{0x21CD103C, "Smart Array", &SA5_access},
{0x21CE103C, "Smart HBA", &SA5_access},
{0x05809005, "SmartHBA-SA", &SA5_access},
+ {0x05819005, "SmartHBA-SA 8i", &SA5_access},
+ {0x05829005, "SmartHBA-SA 8i8e", &SA5_access},
+ {0x05839005, "SmartHBA-SA 8e", &SA5_access},
+ {0x05849005, "SmartHBA-SA 16i", &SA5_access},
+ {0x05859005, "SmartHBA-SA 4i4e", &SA5_access},
{0x00761590, "HP Storage P1224 Array Controller", &SA5_access},
{0x00871590, "HP Storage P1224e Array Controller", &SA5_access},
{0x007D1590, "HP Storage P1228 Array Controller", &SA5_access},
static void hpsa_command_resubmit_worker(struct work_struct *work);
static u32 lockup_detected(struct ctlr_info *h);
static int detect_controller_lockup(struct ctlr_info *h);
+static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device);
static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
{
decode_sense_data(c->err_info->SenseInfo, sense_len,
&sense_key, &asc, &ascq);
- if (sense_key != UNIT_ATTENTION || asc == -1)
+ if (sense_key != UNIT_ATTENTION || asc == 0xff)
return 0;
switch (asc) {
return snprintf(buf, 20, "%d\n", offload_enabled);
}
+#define MAX_PATHS 8
+#define PATH_STRING_LEN 50
+
+static ssize_t path_info_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ctlr_info *h;
+ struct scsi_device *sdev;
+ struct hpsa_scsi_dev_t *hdev;
+ unsigned long flags;
+ int i;
+ int output_len = 0;
+ u8 box;
+ u8 bay;
+ u8 path_map_index = 0;
+ char *active;
+ unsigned char phys_connector[2];
+ unsigned char path[MAX_PATHS][PATH_STRING_LEN];
+
+ memset(path, 0, MAX_PATHS * PATH_STRING_LEN);
+ sdev = to_scsi_device(dev);
+ h = sdev_to_hba(sdev);
+ spin_lock_irqsave(&h->devlock, flags);
+ hdev = sdev->hostdata;
+ if (!hdev) {
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return -ENODEV;
+ }
+
+ bay = hdev->bay;
+ for (i = 0; i < MAX_PATHS; i++) {
+ path_map_index = 1<<i;
+ if (i == hdev->active_path_index)
+ active = "Active";
+ else if (hdev->path_map & path_map_index)
+ active = "Inactive";
+ else
+ continue;
+
+ output_len = snprintf(path[i],
+ PATH_STRING_LEN, "[%d:%d:%d:%d] %20.20s ",
+ h->scsi_host->host_no,
+ hdev->bus, hdev->target, hdev->lun,
+ scsi_device_type(hdev->devtype));
+
+ if (is_ext_target(h, hdev) ||
+ (hdev->devtype == TYPE_RAID) ||
+ is_logical_dev_addr_mode(hdev->scsi3addr)) {
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN, "%s\n",
+ active);
+ continue;
+ }
+
+ box = hdev->box[i];
+ memcpy(&phys_connector, &hdev->phys_connector[i],
+ sizeof(phys_connector));
+ if (phys_connector[0] < '0')
+ phys_connector[0] = '0';
+ if (phys_connector[1] < '0')
+ phys_connector[1] = '0';
+ if (hdev->phys_connector[i] > 0)
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN,
+ "PORT: %.2s ",
+ phys_connector);
+ if (hdev->devtype == TYPE_DISK &&
+ hdev->expose_state != HPSA_DO_NOT_EXPOSE) {
+ if (box == 0 || box == 0xFF) {
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN,
+ "BAY: %hhu %s\n",
+ bay, active);
+ } else {
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN,
+ "BOX: %hhu BAY: %hhu %s\n",
+ box, bay, active);
+ }
+ } else if (box != 0 && box != 0xFF) {
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN, "BOX: %hhu %s\n",
+ box, active);
+ } else
+ output_len += snprintf(path[i] + output_len,
+ PATH_STRING_LEN, "%s\n", active);
+ }
+
+ spin_unlock_irqrestore(&h->devlock, flags);
+ return snprintf(buf, output_len+1, "%s%s%s%s%s%s%s%s",
+ path[0], path[1], path[2], path[3],
+ path[4], path[5], path[6], path[7]);
+}
+
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
host_show_hp_ssd_smart_path_enabled, NULL);
+static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);
static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH,
host_show_hp_ssd_smart_path_status,
host_store_hp_ssd_smart_path_status);
&dev_attr_lunid,
&dev_attr_unique_id,
&dev_attr_hp_ssd_smart_path_enabled,
+ &dev_attr_path_info,
&dev_attr_lockup_detected,
NULL,
};
/* This is a non-zero lun of a multi-lun device.
* Search through our list and find the device which
- * has the same 8 byte LUN address, excepting byte 4.
+ * has the same 8 byte LUN address, excepting byte 4 and 5.
* Assign the same bus and target for this new LUN.
* Use the logical unit number from the firmware.
*/
memcpy(addr1, device->scsi3addr, 8);
addr1[4] = 0;
+ addr1[5] = 0;
for (i = 0; i < n; i++) {
sd = h->dev[i];
memcpy(addr2, sd->scsi3addr, 8);
addr2[4] = 0;
- /* differ only in byte 4? */
+ addr2[5] = 0;
+ /* differ only in byte 4 and 5? */
if (memcmp(addr1, addr2, 8) == 0) {
device->bus = sd->bus;
device->target = sd->target;
return 1;
if (dev1->offload_enabled != dev2->offload_enabled)
return 1;
- if (dev1->queue_depth != dev2->queue_depth)
- return 1;
+ if (!is_logical_dev_addr_mode(dev1->scsi3addr))
+ if (dev1->queue_depth != dev2->queue_depth)
+ return 1;
return 0;
}
h->scsi_host->host_no,
sd->bus, sd->target, sd->lun);
break;
+ case HPSA_LV_NOT_AVAILABLE:
+ dev_info(&h->pdev->dev,
+ "C%d:B%d:T%d:L%d Volume is waiting for transforming volume.\n",
+ h->scsi_host->host_no,
+ sd->bus, sd->target, sd->lun);
+ break;
case HPSA_LV_UNDERGOING_RPI:
dev_info(&h->pdev->dev,
- "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
+ "C%d:B%d:T%d:L%d Volume is undergoing rapid parity init.\n",
h->scsi_host->host_no,
sd->bus, sd->target, sd->lun);
break;
case HPSA_LV_PENDING_RPI:
dev_info(&h->pdev->dev,
- "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
- h->scsi_host->host_no,
- sd->bus, sd->target, sd->lun);
+ "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
+ h->scsi_host->host_no,
+ sd->bus, sd->target, sd->lun);
break;
case HPSA_LV_ENCRYPTED_NO_KEY:
dev_info(&h->pdev->dev,
return rc;
}
-static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info *h,
- unsigned char *scsi3addr, unsigned char page,
- struct bmic_controller_parameters *buf, size_t bufsize)
-{
- int rc = IO_OK;
- struct CommandList *c;
- struct ErrorInfo *ei;
-
- c = cmd_alloc(h);
- if (fill_cmd(c, BMIC_SENSE_CONTROLLER_PARAMETERS, h, buf, bufsize,
- page, scsi3addr, TYPE_CMD)) {
- rc = -1;
- goto out;
- }
- rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
- if (rc)
- goto out;
- ei = c->err_info;
- if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
- hpsa_scsi_interpret_error(h, c);
- rc = -1;
- }
-out:
- cmd_free(h, c);
- return rc;
-}
-
static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
u8 reset_type, int reply_queue)
{
lockup_detected(h));
if (unlikely(lockup_detected(h))) {
- dev_warn(&h->pdev->dev,
- "Controller lockup detected during reset wait\n");
- mutex_unlock(&h->reset_mutex);
- rc = -ENODEV;
- }
+ dev_warn(&h->pdev->dev,
+ "Controller lockup detected during reset wait\n");
+ rc = -ENODEV;
+ }
if (unlikely(rc))
atomic_set(&dev->reset_cmds_out, 0);
/* Keep volume offline in certain cases: */
switch (ldstat) {
case HPSA_LV_UNDERGOING_ERASE:
+ case HPSA_LV_NOT_AVAILABLE:
case HPSA_LV_UNDERGOING_RPI:
case HPSA_LV_PENDING_RPI:
case HPSA_LV_ENCRYPTED_NO_KEY:
return NULL;
}
-static int hpsa_hba_mode_enabled(struct ctlr_info *h)
-{
- int rc;
- int hba_mode_enabled;
- struct bmic_controller_parameters *ctlr_params;
- ctlr_params = kzalloc(sizeof(struct bmic_controller_parameters),
- GFP_KERNEL);
-
- if (!ctlr_params)
- return -ENOMEM;
- rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params,
- sizeof(struct bmic_controller_parameters));
- if (rc) {
- kfree(ctlr_params);
- return rc;
- }
-
- hba_mode_enabled =
- ((ctlr_params->nvram_flags & HBA_MODE_ENABLED_FLAG) != 0);
- kfree(ctlr_params);
- return hba_mode_enabled;
-}
-
/* get physical drive ioaccel handle and queue depth */
static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h,
struct hpsa_scsi_dev_t *dev,
atomic_set(&dev->reset_cmds_out, 0);
}
+static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device,
+ u8 *lunaddrbytes,
+ struct bmic_identify_physical_device *id_phys)
+{
+ if (PHYS_IOACCEL(lunaddrbytes)
+ && this_device->ioaccel_handle)
+ this_device->hba_ioaccel_enabled = 1;
+
+ memcpy(&this_device->active_path_index,
+ &id_phys->active_path_number,
+ sizeof(this_device->active_path_index));
+ memcpy(&this_device->path_map,
+ &id_phys->redundant_path_present_map,
+ sizeof(this_device->path_map));
+ memcpy(&this_device->box,
+ &id_phys->alternate_paths_phys_box_on_port,
+ sizeof(this_device->box));
+ memcpy(&this_device->phys_connector,
+ &id_phys->alternate_paths_phys_connector,
+ sizeof(this_device->phys_connector));
+ memcpy(&this_device->bay,
+ &id_phys->phys_bay_in_box,
+ sizeof(this_device->bay));
+}
+
static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
{
/* the idea here is we could get notified
int ncurrent = 0;
int i, n_ext_target_devs, ndevs_to_allocate;
int raid_ctlr_position;
- int rescan_hba_mode;
DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS);
currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL);
}
memset(lunzerobits, 0, sizeof(lunzerobits));
- rescan_hba_mode = hpsa_hba_mode_enabled(h);
- if (rescan_hba_mode < 0)
- goto out;
-
- if (!h->hba_mode_enabled && rescan_hba_mode)
- dev_warn(&h->pdev->dev, "HBA mode enabled\n");
- else if (h->hba_mode_enabled && !rescan_hba_mode)
- dev_warn(&h->pdev->dev, "HBA mode disabled\n");
-
- h->hba_mode_enabled = rescan_hba_mode;
-
if (hpsa_gather_lun_info(h, physdev_list, &nphysicals,
logdev_list, &nlogicals))
goto out;
/* do not expose masked devices */
if (MASKED_DEVICE(lunaddrbytes) &&
i < nphysicals + (raid_ctlr_position == 0)) {
- if (h->hba_mode_enabled)
- dev_warn(&h->pdev->dev,
- "Masked physical device detected\n");
this_device->expose_state = HPSA_DO_NOT_EXPOSE;
} else {
this_device->expose_state =
ncurrent++;
break;
case TYPE_DISK:
- if (i >= nphysicals) {
- ncurrent++;
- break;
- }
-
- if (h->hba_mode_enabled)
- /* never use raid mapper in HBA mode */
+ if (i < nphysicals + (raid_ctlr_position == 0)) {
+ /* The disk is in HBA mode. */
+ /* Never use RAID mapper in HBA mode. */
this_device->offload_enabled = 0;
- else if (!(h->transMethod & CFGTBL_Trans_io_accel1 ||
- h->transMethod & CFGTBL_Trans_io_accel2))
- break;
-
- hpsa_get_ioaccel_drive_info(h, this_device,
- lunaddrbytes, id_phys);
- atomic_set(&this_device->ioaccel_cmds_out, 0);
+ hpsa_get_ioaccel_drive_info(h, this_device,
+ lunaddrbytes, id_phys);
+ hpsa_get_path_info(this_device, lunaddrbytes,
+ id_phys);
+ }
ncurrent++;
break;
case TYPE_TAPE:
case TYPE_MEDIUM_CHANGER:
- ncurrent++;
- break;
case TYPE_ENCLOSURE:
- if (h->hba_mode_enabled)
- ncurrent++;
+ ncurrent++;
break;
case TYPE_RAID:
/* Only present the Smartarray HBA as a RAID controller.
int rc;
struct ctlr_info *h;
struct hpsa_scsi_dev_t *dev;
- char msg[40];
+ char msg[48];
/* find the controller to which the command to be aborted was sent */
h = sdev_to_hba(scsicmd->device);
/* if controller locked up, we can guarantee command won't complete */
if (lockup_detected(h)) {
- sprintf(msg, "cmd %d RESET FAILED, lockup detected",
- hpsa_get_cmd_index(scsicmd));
+ snprintf(msg, sizeof(msg),
+ "cmd %d RESET FAILED, lockup detected",
+ hpsa_get_cmd_index(scsicmd));
hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
return FAILED;
}
/* this reset request might be the result of a lockup; check */
if (detect_controller_lockup(h)) {
- sprintf(msg, "cmd %d RESET FAILED, new lockup detected",
- hpsa_get_cmd_index(scsicmd));
+ snprintf(msg, sizeof(msg),
+ "cmd %d RESET FAILED, new lockup detected",
+ hpsa_get_cmd_index(scsicmd));
hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
return FAILED;
}
/* send a reset to the SCSI LUN which the command was sent to */
rc = hpsa_do_reset(h, dev, dev->scsi3addr, HPSA_RESET_TYPE_LUN,
DEFAULT_REPLY_QUEUE);
- sprintf(msg, "reset %s", rc == 0 ? "completed successfully" : "failed");
+ snprintf(msg, sizeof(msg), "reset %s",
+ rc == 0 ? "completed successfully" : "failed");
hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
return rc == 0 ? SUCCESS : FAILED;
}
pci_set_drvdata(pdev, h);
h->ndevices = 0;
- h->hba_mode_enabled = 0;
spin_lock_init(&h->devlock);
rc = hpsa_put_ctlr_into_performant_mode(h);
rc = hpsa_kdump_soft_reset(h);
if (rc)
/* Neither hard nor soft reset worked, we're hosed. */
- goto clean9;
+ goto clean7;
dev_info(&h->pdev->dev, "Board READY.\n");
dev_info(&h->pdev->dev,
h->heartbeat_sample_interval);
return 0;
-clean9: /* wq, sh, perf, sg, cmd, irq, shost, pci, lu, aer/h */
- kfree(h->hba_inquiry_data);
clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
hpsa_free_performant_mode(h);
h->access.set_intr_mask(h, HPSA_INTR_OFF);
destroy_workqueue(h->rescan_ctlr_wq);
destroy_workqueue(h->resubmit_wq);
+ /*
+ * Call before disabling interrupts.
+ * scsi_remove_host can trigger I/O operations especially
+ * when multipath is enabled. There can be SYNCHRONIZE CACHE
+ * operations which cannot complete and will hang the system.
+ */
+ if (h->scsi_host)
+ scsi_remove_host(h->scsi_host); /* init_one 8 */
/* includes hpsa_free_irqs - init_one 4 */
/* includes hpsa_disable_interrupt_mode - pci_init 2 */
hpsa_shutdown(pdev);
kfree(h->hba_inquiry_data); /* init_one 10 */
h->hba_inquiry_data = NULL; /* init_one 10 */
- if (h->scsi_host)
- scsi_remove_host(h->scsi_host); /* init_one 8 */
hpsa_free_ioaccel2_sg_chain_blocks(h);
hpsa_free_performant_mode(h); /* init_one 7 */
hpsa_free_sg_chain_blocks(h); /* init_one 6 */
/*
* Disk Array driver for HP Smart Array SAS controllers
- * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
+ * Copyright 2014-2015 PMC-Sierra, Inc.
+ * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
+ * Questions/Comments/Bugfixes to storagedev@pmcs.com
*
*/
#ifndef HPSA_H
* device via "ioaccel" path.
*/
u32 ioaccel_handle;
+ u8 active_path_index;
+ u8 path_map;
+ u8 bay;
+ u8 box[8];
+ u16 phys_connector[8];
int offload_config; /* I/O accel RAID offload configured */
int offload_enabled; /* I/O accel RAID offload enabled */
int offload_to_be_enabled;
u8 automatic_drive_slamming;
u8 reserved1;
u8 nvram_flags;
-#define HBA_MODE_ENABLED_FLAG (1 << 3)
u8 cache_nvram_flags;
u8 drive_config_flags;
u16 reserved2;
unsigned int msi_vector;
int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
struct access_method access;
- char hba_mode_enabled;
/* queue and queue Info */
unsigned int Qdepth;
/*
* Disk Array driver for HP Smart Array SAS controllers
- * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
+ * Copyright 2014-2015 PMC-Sierra, Inc.
+ * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
+ * Questions/Comments/Bugfixes to storagedev@pmcs.com
*
*/
#ifndef HPSA_CMD_H
/* Logical volume states */
#define HPSA_VPD_LV_STATUS_UNSUPPORTED 0xff
#define HPSA_LV_OK 0x0
+#define HPSA_LV_NOT_AVAILABLE 0x0b
#define HPSA_LV_UNDERGOING_ERASE 0x0F
#define HPSA_LV_UNDERGOING_RPI 0x12
#define HPSA_LV_PENDING_RPI 0x13
/*
* HighPoint RR3xxx/4xxx controller driver for Linux
- * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved.
+ * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
static char driver_name[] = "hptiop";
static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
-static const char driver_ver[] = "v1.8";
+static const char driver_ver[] = "v1.10.0";
static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
scsi_set_resid(scp,
scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
scp->result = SAM_STAT_CHECK_CONDITION;
- memcpy(scp->sense_buffer, &req->sg_list,
- min_t(size_t, SCSI_SENSE_BUFFERSIZE,
- le32_to_cpu(req->dataxfer_length)));
+ memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE);
goto skip_resid;
break;
scp->result = 0;
- if (scp->device->channel || scp->device->lun ||
- scp->device->id > hba->max_devices) {
+ if (scp->device->channel ||
+ (scp->device->id > hba->max_devices) ||
+ ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
scp->result = DID_BAD_TARGET << 16;
free_req(hba, _req);
goto cmd_done;
NULL
};
+static int hptiop_slave_config(struct scsi_device *sdev)
+{
+ if (sdev->type == TYPE_TAPE)
+ blk_queue_max_hw_sectors(sdev->request_queue, 8192);
+
+ return 0;
+}
+
static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = driver_name,
.use_clustering = ENABLE_CLUSTERING,
.proc_name = driver_name,
.shost_attrs = hptiop_attrs,
+ .slave_configure = hptiop_slave_config,
.this_id = -1,
.change_queue_depth = hptiop_adjust_disk_queue_depth,
};
}
hba = (struct hptiop_hba *)host->hostdata;
+ memset(hba, 0, sizeof(struct hptiop_hba));
hba->ops = iop_ops;
hba->pcidev = pcidev;
init_waitqueue_head(&hba->reset_wq);
init_waitqueue_head(&hba->ioctl_wq);
- host->max_lun = 1;
+ host->max_lun = 128;
host->max_channel = 0;
host->io_port = 0;
host->n_io_port = 0;
dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
hba->req_size = req_size;
- start_virt = dma_alloc_coherent(&pcidev->dev,
- hba->req_size*hba->max_requests + 0x20,
- &start_phy, GFP_KERNEL);
+ hba->req_list = NULL;
- if (!start_virt) {
- printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
- hba->host->host_no);
- goto free_request_irq;
- }
+ for (i = 0; i < hba->max_requests; i++) {
+ start_virt = dma_alloc_coherent(&pcidev->dev,
+ hba->req_size + 0x20,
+ &start_phy, GFP_KERNEL);
+
+ if (!start_virt) {
+ printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
+ hba->host->host_no);
+ goto free_request_mem;
+ }
- hba->dma_coherent = start_virt;
- hba->dma_coherent_handle = start_phy;
+ hba->dma_coherent[i] = start_virt;
+ hba->dma_coherent_handle[i] = start_phy;
- if ((start_phy & 0x1f) != 0) {
- offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
- start_phy += offset;
- start_virt += offset;
- }
+ if ((start_phy & 0x1f) != 0) {
+ offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
+ start_phy += offset;
+ start_virt += offset;
+ }
- hba->req_list = NULL;
- for (i = 0; i < hba->max_requests; i++) {
hba->reqs[i].next = NULL;
hba->reqs[i].req_virt = start_virt;
hba->reqs[i].req_shifted_phy = start_phy >> 5;
hba->reqs[i].index = i;
free_req(hba, &hba->reqs[i]);
- start_virt = (char *)start_virt + hba->req_size;
- start_phy = start_phy + hba->req_size;
}
/* Enable Interrupt and start background task */
return 0;
free_request_mem:
- dma_free_coherent(&hba->pcidev->dev,
- hba->req_size * hba->max_requests + 0x20,
- hba->dma_coherent, hba->dma_coherent_handle);
+ for (i = 0; i < hba->max_requests; i++) {
+ if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
+ dma_free_coherent(&hba->pcidev->dev,
+ hba->req_size + 0x20,
+ hba->dma_coherent[i],
+ hba->dma_coherent_handle[i]);
+ else
+ break;
+ }
-free_request_irq:
free_irq(hba->pcidev->irq, hba);
unmap_pci_bar:
{
struct Scsi_Host *host = pci_get_drvdata(pcidev);
struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
+ u32 i;
dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
free_irq(hba->pcidev->irq, hba);
- dma_free_coherent(&hba->pcidev->dev,
- hba->req_size * hba->max_requests + 0x20,
- hba->dma_coherent,
- hba->dma_coherent_handle);
+ for (i = 0; i < hba->max_requests; i++) {
+ if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
+ dma_free_coherent(&hba->pcidev->dev,
+ hba->req_size + 0x20,
+ hba->dma_coherent[i],
+ hba->dma_coherent_handle[i]);
+ else
+ break;
+ }
hba->ops->internal_memfree(hba);
{ PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
{ PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
{ PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
+ { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
{},
};
/*
* HighPoint RR3xxx/4xxx controller driver for Linux
- * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved.
+ * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
/* used to free allocated dma area */
- void *dma_coherent;
- dma_addr_t dma_coherent_handle;
+ void *dma_coherent[HPTIOP_MAX_REQUESTS];
+ dma_addr_t dma_coherent_handle[HPTIOP_MAX_REQUESTS];
atomic_t reset_count;
atomic_t resetting;
if (ioa_cfg->sis64) {
proto = cfgtew->u.cfgte64->proto;
- res->res_flags = cfgtew->u.cfgte64->res_flags;
+ res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
+ res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
res->qmodel = IPR_QUEUEING_MODEL64(res);
res->type = cfgtew->u.cfgte64->res_type;
int new_path = 0;
if (res->ioa_cfg->sis64) {
- res->flags = cfgtew->u.cfgte64->flags;
- res->res_flags = cfgtew->u.cfgte64->res_flags;
+ res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
+ res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
res->type = cfgtew->u.cfgte64->res_type;
memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
* Return value:
* none
**/
-static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
+static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
{
int i;
((unsigned long)fabric + be16_to_cpu(fabric->length));
}
- ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
+ ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
}
/**
((unsigned long)fabric + be16_to_cpu(fabric->length));
}
- ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
+ ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
}
/**
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res && ioa_cfg->sis64)
- len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
+ len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
else if (res)
len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
/*
* Literals
*/
-#define IPR_DRIVER_VERSION "2.6.1"
-#define IPR_DRIVER_DATE "(March 12, 2015)"
+#define IPR_DRIVER_VERSION "2.6.2"
+#define IPR_DRIVER_DATE "(June 11, 2015)"
/*
* IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
struct ipr_hostrcb_type_07_error {
u8 failure_reason[64];
struct ipr_vpd vpd;
- u32 data[222];
+ __be32 data[222];
}__attribute__((packed, aligned (4)));
struct ipr_hostrcb_type_17_error {
u8 failure_reason[64];
struct ipr_ext_vpd vpd;
- u32 data[476];
+ __be32 data[476];
}__attribute__((packed, aligned (4)));
struct ipr_hostrcb_config_element {
(((res)->bus << 24) | ((res)->target << 8) | (res)->lun)
u8 ata_class;
-
- u8 flags;
- __be16 res_flags;
-
u8 type;
+ u16 flags;
+ u16 res_flags;
+
u8 qmodel;
struct ipr_std_inq_data std_inq_data;
__be32 res_handle;
__be64 dev_id;
- __be64 lun_wwn;
+ u64 lun_wwn;
struct scsi_lun dev_lun;
u8 res_path[8];
}
/**
- * fc_fcp_pkt_destory() - Release hold on a fcp_pkt
+ * fc_fcp_pkt_destroy() - Release hold on a fcp_pkt
* @seq: The sequence that the FCP packet is on (required by destructor API)
* @fsp: The FCP packet to be released
*
HA_RXMASK));
}
}
- if ((phba->sli_rev == LPFC_SLI_REV4) &
+ if ((phba->sli_rev == LPFC_SLI_REV4) &&
(!list_empty(&pring->txq)))
lpfc_drain_txq(phba);
/*
raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */
if ((retval = issue_scb_block(adapter, raw_mbox)))
- printk(KERN_WARNING
- "megaraid: Product_info cmd failed with error: %d\n",
+ dev_warn(&adapter->dev->dev,
+ "Product_info cmd failed with error: %d\n",
retval);
pci_unmap_single(adapter->dev, prod_info_dma_handle,
adapter->bios_version[4] = 0;
}
- printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n",
+ dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n",
adapter->fw_version, adapter->bios_version, adapter->numldrv);
/*
*/
adapter->support_ext_cdb = mega_support_ext_cdb(adapter);
if (adapter->support_ext_cdb)
- printk(KERN_NOTICE "megaraid: supports extended CDBs.\n");
+ dev_notice(&adapter->dev->dev, "supports extended CDBs\n");
return 0;
if(!(adapter->flag & (1L << cmd->device->channel))) {
- printk(KERN_NOTICE
- "scsi%d: scanning scsi channel %d ",
+ dev_notice(&adapter->dev->dev,
+ "scsi%d: scanning scsi channel %d "
+ "for logical drives\n",
adapter->host->host_no,
cmd->device->channel);
- printk("for logical drives.\n");
adapter->flag |= (1L << cmd->device->channel);
}
case READ_CAPACITY:
if(!(adapter->flag & (1L << cmd->device->channel))) {
- printk(KERN_NOTICE
- "scsi%d: scanning scsi channel %d [P%d] ",
+ dev_notice(&adapter->dev->dev,
+ "scsi%d: scanning scsi channel %d [P%d] "
+ "for physical devices\n",
adapter->host->host_no,
cmd->device->channel, channel);
- printk("for physical devices.\n");
adapter->flag |= (1L << cmd->device->channel);
}
case READ_CAPACITY:
if(!(adapter->flag & (1L << cmd->device->channel))) {
- printk(KERN_NOTICE
- "scsi%d: scanning scsi channel %d [P%d] ",
+ dev_notice(&adapter->dev->dev,
+ "scsi%d: scanning scsi channel %d [P%d] "
+ "for physical devices\n",
adapter->host->host_no,
cmd->device->channel, channel);
- printk("for physical devices.\n");
adapter->flag |= (1L << cmd->device->channel);
}
return mbox->m_in.status;
bug_blocked_mailbox:
- printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n");
+ dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n");
udelay (1000);
return -1;
}
* Make sure f/w has completed a valid command
*/
if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) {
- printk(KERN_CRIT
- "megaraid: invalid command ");
- printk("Id %d, scb->state:%x, scsi cmd:%p\n",
+ dev_crit(&adapter->dev->dev, "invalid command "
+ "Id %d, scb->state:%x, scsi cmd:%p\n",
cmdid, scb->state, scb->cmd);
continue;
*/
if( scb->state & SCB_ABORT ) {
- printk(KERN_WARNING
- "megaraid: aborted cmd [%x] complete.\n",
+ dev_warn(&adapter->dev->dev,
+ "aborted cmd [%x] complete\n",
scb->idx);
scb->cmd->result = (DID_ABORT << 16);
*/
if( scb->state & SCB_RESET ) {
- printk(KERN_WARNING
- "megaraid: reset cmd [%x] complete.\n",
+ dev_warn(&adapter->dev->dev,
+ "reset cmd [%x] complete\n",
scb->idx);
scb->cmd->result = (DID_RESET << 16);
if( sg_page(sgl) ) {
c = *(unsigned char *) sg_virt(&sgl[0]);
} else {
- printk(KERN_WARNING
- "megaraid: invalid sg.\n");
+ dev_warn(&adapter->dev->dev, "invalid sg\n");
c = 0;
}
mc.opcode = MEGA_RESET_RESERVATIONS;
if( mega_internal_command(adapter, &mc, NULL) != 0 ) {
- printk(KERN_WARNING
- "megaraid: reservation reset failed.\n");
+ dev_warn(&adapter->dev->dev, "reservation reset failed\n");
}
else {
- printk(KERN_INFO "megaraid: reservation reset.\n");
+ dev_info(&adapter->dev->dev, "reservation reset\n");
}
#endif
struct list_head *pos, *next;
scb_t *scb;
- printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n",
+ dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n",
(aor == SCB_ABORT)? "ABORTING":"RESET",
cmd->cmnd[0], cmd->device->channel,
cmd->device->id, (u32)cmd->device->lun);
*/
if( scb->state & SCB_ISSUED ) {
- printk(KERN_WARNING
- "megaraid: %s[%x], fw owner.\n",
+ dev_warn(&adapter->dev->dev,
+ "%s[%x], fw owner\n",
(aor==SCB_ABORT) ? "ABORTING":"RESET",
scb->idx);
* Not yet issued! Remove from the pending
* list
*/
- printk(KERN_WARNING
- "megaraid: %s-[%x], driver owner.\n",
+ dev_warn(&adapter->dev->dev,
+ "%s-[%x], driver owner\n",
(aor==SCB_ABORT) ? "ABORTING":"RESET",
scb->idx);
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
- printk(KERN_WARNING "megaraid: inquiry failed.\n");
+ dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
- printk(KERN_WARNING "megaraid: inquiry failed.\n");
+ dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
- printk(KERN_WARNING "megaraid: inquiry failed.\n");
+ dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
- printk(KERN_WARNING "megaraid: inquiry failed.\n");
+ dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
dir = adapter->controller_proc_dir_entry =
proc_mkdir_data(string, 0, parent, adapter);
if(!dir) {
- printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n");
+ dev_warn(&adapter->dev->dev, "proc_mkdir failed\n");
return;
}
de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops,
f->show);
if (!de) {
- printk(KERN_WARNING "\nmegaraid: proc_create failed\n");
+ dev_warn(&adapter->dev->dev, "proc_create failed\n");
return;
}
return rval;
}
- printk(KERN_INFO
- "megaraid: invalid partition on this disk on channel %d\n",
- sdev->channel);
+ dev_info(&adapter->dev->dev,
+ "invalid partition on this disk on channel %d\n",
+ sdev->channel);
/* Default heads (64) & sectors (32) */
heads = 64;
scb->sgl = (mega_sglist *)scb->sgl64;
if( !scb->sgl ) {
- printk(KERN_WARNING "RAID: Can't allocate sglist.\n");
+ dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n");
mega_free_sgl(adapter);
return -1;
}
&scb->pthru_dma_addr);
if( !scb->pthru ) {
- printk(KERN_WARNING "RAID: Can't allocate passthru.\n");
+ dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n");
mega_free_sgl(adapter);
return -1;
}
&scb->epthru_dma_addr);
if( !scb->epthru ) {
- printk(KERN_WARNING
- "Can't allocate extended passthru.\n");
+ dev_warn(&adapter->dev->dev,
+ "Can't allocate extended passthru\n");
mega_free_sgl(adapter);
return -1;
}
* Do we support this feature
*/
if( !adapter->support_random_del ) {
- printk(KERN_WARNING "megaraid: logdrv ");
- printk("delete on non-supporting F/W.\n");
+ dev_warn(&adapter->dev->dev, "logdrv "
+ "delete on non-supporting F/W\n");
return (-EINVAL);
}
if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 ||
uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) {
- printk(KERN_WARNING "megaraid: rejected passthru.\n");
+ dev_warn(&adapter->dev->dev, "rejected passthru\n");
return (-EINVAL);
}
for( i = 0; i < adapter->product_info.nchannels; i++ ) {
if( (adapter->mega_ch_class >> i) & 0x01 ) {
- printk(KERN_INFO "megaraid: channel[%d] is raid.\n",
+ dev_info(&adapter->dev->dev, "channel[%d] is raid\n",
i);
}
else {
- printk(KERN_INFO "megaraid: channel[%d] is scsi.\n",
+ dev_info(&adapter->dev->dev, "channel[%d] is scsi\n",
i);
}
}
/* log this event */
if(rval) {
- printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv);
+ dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv);
return rval;
}
* this information.
*/
if (rval && trace_level) {
- printk("megaraid: cmd [%x, %x, %x] status:[%x]\n",
+ dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n",
mc->cmd, mc->opcode, mc->subopcode, rval);
}
subsysvid = pdev->subsystem_vendor;
subsysid = pdev->subsystem_device;
- printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:",
- id->vendor, id->device, pci_bus);
-
- printk("slot %d:func %d\n",
- PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func));
+ dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n",
+ id->vendor, id->device);
/* Read the base port and IRQ from PCI */
mega_baseport = pci_resource_start(pdev, 0);
flag |= BOARD_MEMMAP;
if (!request_mem_region(mega_baseport, 128, "megaraid")) {
- printk(KERN_WARNING "megaraid: mem region busy!\n");
+ dev_warn(&pdev->dev, "mem region busy!\n");
goto out_disable_device;
}
mega_baseport = (unsigned long)ioremap(mega_baseport, 128);
if (!mega_baseport) {
- printk(KERN_WARNING
- "megaraid: could not map hba memory\n");
+ dev_warn(&pdev->dev, "could not map hba memory\n");
goto out_release_region;
}
} else {
adapter = (adapter_t *)host->hostdata;
memset(adapter, 0, sizeof(adapter_t));
- printk(KERN_NOTICE
+ dev_notice(&pdev->dev,
"scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
host->host_no, mega_baseport, irq);
adapter->mega_buffer = pci_alloc_consistent(adapter->dev,
MEGA_BUFFER_SIZE, &adapter->buf_dma_handle);
if (!adapter->mega_buffer) {
- printk(KERN_WARNING "megaraid: out of RAM.\n");
+ dev_warn(&pdev->dev, "out of RAM\n");
goto out_host_put;
}
adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL);
if (!adapter->scb_list) {
- printk(KERN_WARNING "megaraid: out of RAM.\n");
+ dev_warn(&pdev->dev, "out of RAM\n");
goto out_free_cmd_buffer;
}
if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ?
megaraid_isr_memmapped : megaraid_isr_iomapped,
IRQF_SHARED, "megaraid", adapter)) {
- printk(KERN_WARNING
- "megaraid: Couldn't register IRQ %d!\n", irq);
+ dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq);
goto out_free_scb_list;
}
if (!strcmp(adapter->fw_version, "3.00") ||
!strcmp(adapter->fw_version, "3.01")) {
- printk( KERN_WARNING
- "megaraid: Your card is a Dell PERC "
- "2/SC RAID controller with "
+ dev_warn(&pdev->dev,
+ "Your card is a Dell PERC "
+ "2/SC RAID controller with "
"firmware\nmegaraid: 3.00 or 3.01. "
"This driver is known to have "
"corruption issues\nmegaraid: with "
if (!strcmp(adapter->fw_version, "H01.07") ||
!strcmp(adapter->fw_version, "H01.08") ||
!strcmp(adapter->fw_version, "H01.09") ) {
- printk(KERN_WARNING
- "megaraid: Firmware H.01.07, "
+ dev_warn(&pdev->dev,
+ "Firmware H.01.07, "
"H.01.08, and H.01.09 on 1M/2M "
"controllers\n"
- "megaraid: do not support 64 bit "
- "addressing.\nmegaraid: DISABLING "
+ "do not support 64 bit "
+ "addressing.\nDISABLING "
"64 bit support.\n");
adapter->flag &= ~BOARD_64BIT;
}
*/
adapter->has_cluster = mega_support_cluster(adapter);
if (adapter->has_cluster) {
- printk(KERN_NOTICE
- "megaraid: Cluster driver, initiator id:%d\n",
+ dev_notice(&pdev->dev,
+ "Cluster driver, initiator id:%d\n",
adapter->this_id);
}
#endif
issue_scb_block(adapter, raw_mbox);
if (atomic_read(&adapter->pend_cmds) > 0)
- printk(KERN_WARNING "megaraid: pending commands!!\n");
+ dev_warn(&adapter->dev->dev, "pending commands!!\n");
/*
* Have a delibrate delay to make sure all the caches are
struct megasas_cmd, list);
list_del_init(&cmd->list);
} else {
- printk(KERN_ERR "megasas: Command pool empty!\n");
+ dev_err(&instance->pdev->dev, "Command pool empty!\n");
}
spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
megasas_enable_intr_xscale(struct megasas_instance *instance)
{
struct megasas_register_set __iomem *regs;
+
regs = instance->reg_set;
writel(0, &(regs)->outbound_intr_mask);
{
struct megasas_register_set __iomem *regs;
u32 mask = 0x1f;
+
regs = instance->reg_set;
writel(mask, ®s->outbound_intr_mask);
/* Dummy readl to force pci flush */
{
u32 status;
u32 mfiStatus = 0;
+
/*
* Check if it is our interrupt
*/
struct megasas_register_set __iomem *regs)
{
unsigned long flags;
+
spin_lock_irqsave(&instance->hba_lock, flags);
writel((frame_phys_addr >> 3)|(frame_count),
&(regs)->inbound_queue_port);
{
u32 i;
u32 pcidata;
+
writel(MFI_ADP_RESET, ®s->inbound_doorbell);
for (i = 0; i < 3; i++)
msleep(1000); /* sleep for 3 secs */
pcidata = 0;
pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
- printk(KERN_NOTICE "pcidata = %x\n", pcidata);
+ dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
if (pcidata & 0x2) {
- printk(KERN_NOTICE "mfi 1068 offset read=%x\n", pcidata);
+ dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
pcidata &= ~0x2;
pci_write_config_dword(instance->pdev,
MFI_1068_PCSR_OFFSET, pcidata);
pcidata = 0;
pci_read_config_dword(instance->pdev,
MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
- printk(KERN_NOTICE "1068 offset handshake read=%x\n", pcidata);
+ dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
- printk(KERN_NOTICE "1068 offset pcidt=%x\n", pcidata);
+ dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
pcidata = 0;
pci_write_config_dword(instance->pdev,
MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
megasas_check_reset_xscale(struct megasas_instance *instance,
struct megasas_register_set __iomem *regs)
{
-
if ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) &&
(le32_to_cpu(*instance->consumer) ==
MEGASAS_ADPRESET_INPROG_SIGN))
/**
* The following functions are defined for ppc (deviceid : 0x60)
-* controllers
+* controllers
*/
/**
megasas_enable_intr_ppc(struct megasas_instance *instance)
{
struct megasas_register_set __iomem *regs;
+
regs = instance->reg_set;
writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
{
struct megasas_register_set __iomem *regs;
u32 mask = 0xFFFFFFFF;
+
regs = instance->reg_set;
writel(mask, ®s->outbound_intr_mask);
/* Dummy readl to force pci flush */
struct megasas_register_set __iomem *regs)
{
unsigned long flags;
+
spin_lock_irqsave(&instance->hba_lock, flags);
writel((frame_phys_addr | (frame_count<<1))|1,
&(regs)->inbound_queue_port);
megasas_enable_intr_skinny(struct megasas_instance *instance)
{
struct megasas_register_set __iomem *regs;
+
regs = instance->reg_set;
writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
{
struct megasas_register_set __iomem *regs;
u32 mask = 0xFFFFFFFF;
+
regs = instance->reg_set;
writel(mask, ®s->outbound_intr_mask);
/* Dummy readl to force pci flush */
writel(status, ®s->outbound_intr_status);
/*
- * dummy read to flush PCI
- */
+ * dummy read to flush PCI
+ */
readl(®s->outbound_intr_status);
return mfiStatus;
struct megasas_register_set __iomem *regs)
{
unsigned long flags;
+
spin_lock_irqsave(&instance->hba_lock, flags);
writel(upper_32_bits(frame_phys_addr),
&(regs)->inbound_high_queue_port);
megasas_enable_intr_gen2(struct megasas_instance *instance)
{
struct megasas_register_set __iomem *regs;
+
regs = instance->reg_set;
writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
{
struct megasas_register_set __iomem *regs;
u32 mask = 0xFFFFFFFF;
+
regs = instance->reg_set;
writel(mask, ®s->outbound_intr_mask);
/* Dummy readl to force pci flush */
{
u32 status;
u32 mfiStatus = 0;
+
/*
* Check if it is our interrupt
*/
struct megasas_register_set __iomem *regs)
{
unsigned long flags;
+
spin_lock_irqsave(&instance->hba_lock, flags);
writel((frame_phys_addr | (frame_count<<1))|1,
&(regs)->inbound_queue_port);
megasas_adp_reset_gen2(struct megasas_instance *instance,
struct megasas_register_set __iomem *reg_set)
{
- u32 retry = 0 ;
- u32 HostDiag;
- u32 __iomem *seq_offset = ®_set->seq_offset;
- u32 __iomem *hostdiag_offset = ®_set->host_diag;
+ u32 retry = 0 ;
+ u32 HostDiag;
+ u32 __iomem *seq_offset = ®_set->seq_offset;
+ u32 __iomem *hostdiag_offset = ®_set->host_diag;
if (instance->instancet == &megasas_instance_template_skinny) {
seq_offset = ®_set->fusion_seq_offset;
HostDiag = (u32)readl(hostdiag_offset);
- while ( !( HostDiag & DIAG_WRITE_ENABLE) ) {
+ while (!(HostDiag & DIAG_WRITE_ENABLE)) {
msleep(100);
HostDiag = (u32)readl(hostdiag_offset);
- printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n",
+ dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);
if (retry++ >= 100)
}
- printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
+ dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
ssleep(10);
HostDiag = (u32)readl(hostdiag_offset);
- while ( ( HostDiag & DIAG_RESET_ADAPTER) ) {
+ while (HostDiag & DIAG_RESET_ADAPTER) {
msleep(100);
HostDiag = (u32)readl(hostdiag_offset);
- printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n",
+ dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);
if (retry++ >= 1000)
megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
int seconds;
-
struct megasas_header *frame_hdr = &cmd->frame->hdr;
frame_hdr->cmd_status = MFI_CMD_STATUS_POLL_MODE;
struct megasas_cmd *cmd, int timeout)
{
int ret = 0;
+
cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
instance->instancet->issue_dcmd(instance, cmd);
int num_cnt;
int sge_bytes;
u32 sge_sz;
- u32 frame_count=0;
+ u32 frame_count = 0;
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
sizeof(struct megasas_sge32);
num_cnt = sge_count - 3;
}
- if(num_cnt>0){
+ if (num_cnt > 0) {
sge_bytes = sge_sz * num_cnt;
frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
}
/* Main frame */
- frame_count +=1;
+ frame_count += 1;
if (frame_count > 7)
frame_count = 8;
memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
/*
- * If the command is for the tape device, set the
- * pthru timeout to the os layer timeout value.
- */
+ * If the command is for the tape device, set the
+ * pthru timeout to the os layer timeout value.
+ */
if (scp->device->type == TYPE_TAPE) {
if ((scp->request->timeout / HZ) > 0xFFFF)
pthru->timeout = cpu_to_le16(0xFFFF);
&pthru->sgl);
if (pthru->sge_count > instance->max_num_sge) {
- printk(KERN_ERR "megasas: DCDB two many SGE NUM=%x\n",
+ dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
pthru->sge_count);
return 0;
}
ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
if (ldio->sge_count > instance->max_num_sge) {
- printk(KERN_ERR "megasas: build_ld_io: sge_count = %x\n",
+ dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
ldio->sge_count);
return 0;
}
/**
* megasas_dump_pending_frames - Dumps the frame address of all pending cmds
- * in FW
+ * in FW
* @instance: Adapter soft state
*/
static inline void
u32 sgcount;
u32 max_cmd = instance->max_fw_cmds;
- printk(KERN_ERR "\nmegasas[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
- printk(KERN_ERR "megasas[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
+ dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
if (IS_DMA64)
- printk(KERN_ERR "\nmegasas[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
else
- printk(KERN_ERR "\nmegasas[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
- printk(KERN_ERR "megasas[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
- if(!cmd->scmd)
+ if (!cmd->scmd)
continue;
- printk(KERN_ERR "megasas[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
+ dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
ldio = (struct megasas_io_frame *)cmd->frame;
mfi_sgl = &ldio->sgl;
sgcount = ldio->sge_count;
- printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
+ dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
" lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
- }
- else {
+ } else {
pthru = (struct megasas_pthru_frame *) cmd->frame;
mfi_sgl = &pthru->sgl;
sgcount = pthru->sge_count;
- printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
+ dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
"lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
}
- if(megasas_dbg_lvl & MEGASAS_DBG_LVL){
- for (n = 0; n < sgcount; n++){
- if (IS_DMA64)
- printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%llx ",
- le32_to_cpu(mfi_sgl->sge64[n].length),
- le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
- else
- printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%x ",
- le32_to_cpu(mfi_sgl->sge32[n].length),
- le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
+ if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
+ for (n = 0; n < sgcount; n++) {
+ if (IS_DMA64)
+ dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
+ le32_to_cpu(mfi_sgl->sge64[n].length),
+ le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
+ else
+ dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
+ le32_to_cpu(mfi_sgl->sge32[n].length),
+ le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
}
}
- printk(KERN_ERR "\n");
} /*for max_cmd*/
- printk(KERN_ERR "\nmegasas[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
- if(cmd->sync_cmd == 1){
- printk(KERN_ERR "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
- }
+ if (cmd->sync_cmd == 1)
+ dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
}
- printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no);
+ dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
}
u32
}
if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
- printk(KERN_ERR "megasas: Err returned from build_and_issue_cmd\n");
+ dev_err(&instance->pdev->dev, "Err returned from build_and_issue_cmd\n");
return SCSI_MLQUEUE_HOST_BUSY;
}
static int megasas_slave_configure(struct scsi_device *sdev)
{
/*
- * The RAID firmware may require extended timeouts.
- */
+ * The RAID firmware may require extended timeouts.
+ */
blk_queue_rq_timeout(sdev->request_queue,
MEGASAS_DEFAULT_CMD_TIMEOUT * HZ);
static int megasas_slave_alloc(struct scsi_device *sdev)
{
- u16 pd_index = 0;
+ u16 pd_index = 0;
struct megasas_instance *instance ;
+
instance = megasas_lookup_instance(sdev->host->host_no);
if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) {
/*
(instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
- writel(MFI_STOP_ADP,
- &instance->reg_set->doorbell);
+ writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
/* Flush */
readl(&instance->reg_set->doorbell);
if (instance->mpio && instance->requestorId)
unsigned long flags;
/* If we have already declared adapter dead, donot complete cmds */
- if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR )
+ if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
return;
spin_lock_irqsave(&instance->completion_lock, flags);
while (consumer != producer) {
context = le32_to_cpu(instance->reply_queue[consumer]);
if (context >= instance->max_fw_cmds) {
- printk(KERN_ERR "Unexpected context value %x\n",
+ dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
context);
BUG();
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: megasas_get_ld_vf_affiliation_111:"
- "Failed to get cmd for scsi%d.\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
+ "Failed to get cmd for scsi%d\n",
instance->host->host_no);
return -ENOMEM;
}
dcmd = &cmd->frame->dcmd;
if (!instance->vf_affiliation_111) {
- printk(KERN_WARNING "megasas: SR-IOV: Couldn't get LD/VF "
- "affiliation for scsi%d.\n", instance->host->host_no);
+ dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
+ "affiliation for scsi%d\n", instance->host->host_no);
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
sizeof(struct MR_LD_VF_AFFILIATION_111),
&new_affiliation_111_h);
if (!new_affiliation_111) {
- printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate "
- "memory for new affiliation for scsi%d.\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
+ "memory for new affiliation for scsi%d\n",
instance->host->host_no);
megasas_return_cmd(instance, cmd);
return -ENOMEM;
dcmd->sgl.sge32[0].length = cpu_to_le32(
sizeof(struct MR_LD_VF_AFFILIATION_111));
- printk(KERN_WARNING "megasas: SR-IOV: Getting LD/VF affiliation for "
+ dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
"scsi%d\n", instance->host->host_no);
megasas_issue_blocked_cmd(instance, cmd, 0);
if (dcmd->cmd_status) {
- printk(KERN_WARNING "megasas: SR-IOV: LD/VF affiliation DCMD"
- " failed with status 0x%x for scsi%d.\n",
+ dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
+ " failed with status 0x%x for scsi%d\n",
dcmd->cmd_status, instance->host->host_no);
retval = 1; /* Do a scan if we couldn't get affiliation */
goto out;
for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
new_affiliation_111->map[ld].policy[thisVf]) {
- printk(KERN_WARNING "megasas: SR-IOV: "
- "Got new LD/VF affiliation "
- "for scsi%d.\n",
+ dev_warn(&instance->pdev->dev, "SR-IOV: "
+ "Got new LD/VF affiliation for scsi%d\n",
instance->host->host_no);
memcpy(instance->vf_affiliation_111,
new_affiliation_111,
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: megasas_get_ld_vf_affiliation12: "
- "Failed to get cmd for scsi%d.\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
+ "Failed to get cmd for scsi%d\n",
instance->host->host_no);
return -ENOMEM;
}
dcmd = &cmd->frame->dcmd;
if (!instance->vf_affiliation) {
- printk(KERN_WARNING "megasas: SR-IOV: Couldn't get LD/VF "
- "affiliation for scsi%d.\n", instance->host->host_no);
+ dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
+ "affiliation for scsi%d\n", instance->host->host_no);
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
sizeof(struct MR_LD_VF_AFFILIATION),
&new_affiliation_h);
if (!new_affiliation) {
- printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate "
- "memory for new affiliation for scsi%d.\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
+ "memory for new affiliation for scsi%d\n",
instance->host->host_no);
megasas_return_cmd(instance, cmd);
return -ENOMEM;
dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
sizeof(struct MR_LD_VF_AFFILIATION));
- printk(KERN_WARNING "megasas: SR-IOV: Getting LD/VF affiliation for "
+ dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
"scsi%d\n", instance->host->host_no);
megasas_issue_blocked_cmd(instance, cmd, 0);
if (dcmd->cmd_status) {
- printk(KERN_WARNING "megasas: SR-IOV: LD/VF affiliation DCMD"
- " failed with status 0x%x for scsi%d.\n",
+ dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
+ " failed with status 0x%x for scsi%d\n",
dcmd->cmd_status, instance->host->host_no);
retval = 1; /* Do a scan if we couldn't get affiliation */
goto out;
if (!initial) {
if (!new_affiliation->ldCount) {
- printk(KERN_WARNING "megasas: SR-IOV: Got new LD/VF "
- "affiliation for passive path for scsi%d.\n",
+ dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
+ "affiliation for passive path for scsi%d\n",
instance->host->host_no);
retval = 1;
goto out;
}
out:
if (doscan) {
- printk(KERN_WARNING "megasas: SR-IOV: Got new LD/VF "
- "affiliation for scsi%d.\n", instance->host->host_no);
+ dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
+ "affiliation for scsi%d\n", instance->host->host_no);
memcpy(instance->vf_affiliation, new_affiliation,
new_affiliation->size);
retval = 1;
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: megasas_sriov_start_heartbeat: "
- "Failed to get cmd for scsi%d.\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
+ "Failed to get cmd for scsi%d\n",
instance->host->host_no);
return -ENOMEM;
}
sizeof(struct MR_CTRL_HB_HOST_MEM),
&instance->hb_host_mem_h);
if (!instance->hb_host_mem) {
- printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate"
- " memory for heartbeat host memory for "
- "scsi%d.\n", instance->host->host_no);
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
+ " memory for heartbeat host memory for scsi%d\n",
+ instance->host->host_no);
retval = -ENOMEM;
goto out;
}
dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h);
dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
- printk(KERN_WARNING "megasas: SR-IOV: Starting heartbeat for scsi%d\n",
+ dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
instance->host->host_no);
if (instance->ctrl_context && !instance->mask_interrupts)
mod_timer(&instance->sriov_heartbeat_timer,
jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
} else {
- printk(KERN_WARNING "megasas: SR-IOV: Heartbeat never "
+ dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
"completed for scsi%d\n", instance->host->host_no);
schedule_work(&instance->work_init);
}
&clist_local);
spin_unlock_irqrestore(&instance->hba_lock, flags);
- printk(KERN_NOTICE "megasas: HBA reset wait ...\n");
+ dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
for (i = 0; i < wait_time; i++) {
msleep(1000);
spin_lock_irqsave(&instance->hba_lock, flags);
}
if (adprecovery != MEGASAS_HBA_OPERATIONAL) {
- printk(KERN_NOTICE "megasas: reset: Stopping HBA.\n");
+ dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
spin_lock_irqsave(&instance->hba_lock, flags);
- instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
+ instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
spin_unlock_irqrestore(&instance->hba_lock, flags);
return FAILED;
}
- reset_index = 0;
+ reset_index = 0;
while (!list_empty(&clist_local)) {
- reset_cmd = list_entry((&clist_local)->next,
+ reset_cmd = list_entry((&clist_local)->next,
struct megasas_cmd, list);
list_del_init(&reset_cmd->list);
if (reset_cmd->scmd) {
reset_cmd->scmd->result = DID_RESET << 16;
- printk(KERN_NOTICE "%d:%p reset [%02x]\n",
+ dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
reset_index, reset_cmd,
reset_cmd->scmd->cmnd[0]);
reset_cmd->scmd->scsi_done(reset_cmd->scmd);
megasas_return_cmd(instance, reset_cmd);
} else if (reset_cmd->sync_cmd) {
- printk(KERN_NOTICE "megasas:%p synch cmds"
+ dev_notice(&instance->pdev->dev, "%p synch cmds"
"reset queue\n",
reset_cmd);
reset_cmd->frame_phys_addr,
0, instance->reg_set);
} else {
- printk(KERN_NOTICE "megasas: %p unexpected"
+ dev_notice(&instance->pdev->dev, "%p unexpected"
"cmds lst\n",
reset_cmd);
}
}
for (i = 0; i < resetwaittime; i++) {
-
int outstanding = atomic_read(&instance->fw_outstanding);
if (!outstanding)
break;
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
- printk(KERN_NOTICE "megasas: [%2d]waiting for %d "
+ dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
"commands to complete\n",i,outstanding);
/*
* Call cmd completion routine. Cmd to be
i++;
} while (i <= 3);
- if (atomic_read(&instance->fw_outstanding) &&
- !kill_adapter_flag) {
+ if (atomic_read(&instance->fw_outstanding) && !kill_adapter_flag) {
if (instance->disableOnlineCtrlReset == 0) {
-
megasas_do_ocr(instance);
/* wait for 5 secs to let FW finish the pending cmds */
if (atomic_read(&instance->fw_outstanding) ||
(kill_adapter_flag == 2)) {
- printk(KERN_NOTICE "megaraid_sas: pending cmds after reset\n");
+ dev_notice(&instance->pdev->dev, "pending cmds after reset\n");
/*
- * Send signal to FW to stop processing any pending cmds.
- * The controller will be taken offline by the OS now.
- */
+ * Send signal to FW to stop processing any pending cmds.
+ * The controller will be taken offline by the OS now.
+ */
if ((instance->pdev->device ==
PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
(instance->pdev->device ==
}
megasas_dump_pending_frames(instance);
spin_lock_irqsave(&instance->hba_lock, flags);
- instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
+ instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
spin_unlock_irqrestore(&instance->hba_lock, flags);
return FAILED;
}
- printk(KERN_NOTICE "megaraid_sas: no pending cmds after reset\n");
+ dev_notice(&instance->pdev->dev, "no pending cmds after reset\n");
return SUCCESS;
}
scmd->cmnd[0], scmd->retries);
if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
- printk(KERN_ERR "megasas: cannot recover from previous reset "
- "failures\n");
+ dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
return FAILED;
}
ret_val = megasas_wait_for_outstanding(instance);
if (ret_val == SUCCESS)
- printk(KERN_NOTICE "megasas: reset successful \n");
+ dev_notice(&instance->pdev->dev, "reset successful\n");
else
- printk(KERN_ERR "megasas: failed to do reset\n");
+ dev_err(&instance->pdev->dev, "failed to do reset\n");
return ret_val;
}
*/
static int megasas_reset_device(struct scsi_cmnd *scmd)
{
- int ret;
-
/*
* First wait for all commands to complete
*/
- ret = megasas_generic_reset(scmd);
-
- return ret;
+ return megasas_generic_reset(scmd);
}
/**
{
int ret;
struct megasas_instance *instance;
+
instance = (struct megasas_instance *)scmd->device->host->hostdata;
/*
/**
* megasas_bios_param - Returns disk geometry for a disk
- * @sdev: device handle
+ * @sdev: device handle
* @bdev: block device
* @capacity: drive capacity
* @geom: geometry parameters
int sectors;
sector_t cylinders;
unsigned long tmp;
+
/* Default heads (64) & sectors (32) */
heads = 64;
sectors = 32;
megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
unsigned long flags;
+
/*
* Don't signal app if it is just an aborted previously registered aen
*/
if ((instance->unload == 0) &&
((instance->issuepend_done == 1))) {
struct megasas_aen_event *ev;
+
ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
if (!ev) {
- printk(KERN_ERR "megasas_service_aen: out of memory\n");
+ dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
} else {
ev->instance = instance;
instance->ev = ev;
buff_addr = (unsigned long) buf;
- if (buff_offset >
- (instance->fw_crash_buffer_size * dmachunk)) {
+ if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
dev_err(&instance->pdev->dev,
"Firmware crash dump offset is out of range\n");
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
(buff_offset % dmachunk);
- memcpy(buf, (void *)src_addr, size);
+ memcpy(buf, (void *)src_addr, size);
spin_unlock_irqrestore(&instance->crashdump_lock, flags);
return size;
struct Scsi_Host *shost = class_to_shost(cdev);
struct megasas_instance *instance =
(struct megasas_instance *) shost->hostdata;
+
return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
}
cmd->cmd_status_drv = 0;
wake_up(&instance->abort_cmd_wait_q);
}
-
- return;
}
/**
* @instance: Adapter soft state
* @cmd: Command to be completed
* @alt_status: If non-zero, use this value as status to
- * SCSI mid-layer instead of the value returned
- * by the FW. This should be used if caller wants
- * an alternate status (as in the case of aborted
- * commands)
+ * SCSI mid-layer instead of the value returned
+ * by the FW. This should be used if caller wants
+ * an alternate status (as in the case of aborted
+ * commands)
*/
void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
when booting the kdump kernel. Ignore this command to
prevent a kernel panic on shutdown of the kdump kernel. */
- printk(KERN_WARNING "megaraid_sas: MFI_CMD_INVALID command "
- "completed.\n");
- printk(KERN_WARNING "megaraid_sas: If you have a controller "
- "other than PERC5, please upgrade your firmware.\n");
+ dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
+ "completed\n");
+ dev_warn(&instance->pdev->dev, "If you have a controller "
+ "other than PERC5, please upgrade your firmware\n");
break;
case MFI_CMD_PD_SCSI_IO:
case MFI_CMD_LD_SCSI_IO:
break;
default:
- printk(KERN_DEBUG "megasas: MFI FW status %#x\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
hdr->cmd_status);
cmd->scmd->result = DID_ERROR << 16;
break;
if (cmd->frame->hdr.cmd_status != 0) {
if (cmd->frame->hdr.cmd_status !=
MFI_STAT_NOT_FOUND)
- printk(KERN_WARNING "megasas: map sync"
- "failed, status = 0x%x.\n",
+ dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
cmd->frame->hdr.cmd_status);
else {
megasas_return_cmd(instance, cmd);
break;
default:
- printk("megasas: Unknown command completed! [0x%X]\n",
+ dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
hdr->cmd);
break;
}
/**
* megasas_issue_pending_cmds_again - issue all pending cmds
- * in FW again because of the fw reset
+ * in FW again because of the fw reset
* @instance: Adapter soft state
*/
static inline void
spin_unlock_irqrestore(&instance->hba_lock, flags);
while (!list_empty(&clist_local)) {
- cmd = list_entry((&clist_local)->next,
+ cmd = list_entry((&clist_local)->next,
struct megasas_cmd, list);
list_del_init(&cmd->list);
if (cmd->sync_cmd || cmd->scmd) {
- printk(KERN_NOTICE "megaraid_sas: command %p, %p:%d"
- "detected to be pending while HBA reset.\n",
+ dev_notice(&instance->pdev->dev, "command %p, %p:%d"
+ "detected to be pending while HBA reset\n",
cmd, cmd->scmd, cmd->sync_cmd);
cmd->retry_for_fw_reset++;
if (cmd->retry_for_fw_reset == 3) {
- printk(KERN_NOTICE "megaraid_sas: cmd %p, %p:%d"
+ dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
"was tried multiple times during reset."
"Shutting down the HBA\n",
cmd, cmd->scmd, cmd->sync_cmd);
if (cmd->sync_cmd == 1) {
if (cmd->scmd) {
- printk(KERN_NOTICE "megaraid_sas: unexpected"
+ dev_notice(&instance->pdev->dev, "unexpected"
"cmd attached to internal command!\n");
}
- printk(KERN_NOTICE "megasas: %p synchronous cmd"
+ dev_notice(&instance->pdev->dev, "%p synchronous cmd"
"on the internal reset queue,"
"issue it again.\n", cmd);
cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
instance->instancet->fire_cmd(instance,
- cmd->frame_phys_addr ,
+ cmd->frame_phys_addr,
0, instance->reg_set);
} else if (cmd->scmd) {
- printk(KERN_NOTICE "megasas: %p scsi cmd [%02x]"
+ dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
"detected on the internal queue, issue again.\n",
cmd, cmd->scmd->cmnd[0]);
cmd->frame_phys_addr,
cmd->frame_count-1, instance->reg_set);
} else {
- printk(KERN_NOTICE "megasas: %p unexpected cmd on the"
+ dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
"internal reset defer list while re-issue!!\n",
cmd);
}
}
if (instance->aen_cmd) {
- printk(KERN_NOTICE "megaraid_sas: aen_cmd in def process\n");
+ dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
megasas_return_cmd(instance, instance->aen_cmd);
- instance->aen_cmd = NULL;
+ instance->aen_cmd = NULL;
}
/*
- * Initiate AEN (Asynchronous Event Notification)
- */
+ * Initiate AEN (Asynchronous Event Notification)
+ */
seq_num = instance->last_seq_num;
class_locale.members.reserved = 0;
class_locale.members.locale = MR_EVT_LOCALE_ALL;
u32 defer_index;
unsigned long flags;
- defer_index = 0;
+ defer_index = 0;
spin_lock_irqsave(&instance->mfi_pool_lock, flags);
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
if (cmd->sync_cmd == 1 || cmd->scmd) {
- printk(KERN_NOTICE "megasas: moving cmd[%d]:%p:%d:%p"
+ dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
"on the defer queue as internal\n",
defer_index, cmd, cmd->sync_cmd, cmd->scmd);
if (!list_empty(&cmd->list)) {
- printk(KERN_NOTICE "megaraid_sas: ERROR while"
+ dev_notice(&instance->pdev->dev, "ERROR while"
" moving this cmd:%p, %d %p, it was"
"discovered on some list?\n",
cmd, cmd->sync_cmd, cmd->scmd);
unsigned long flags;
if (instance->adprecovery != MEGASAS_ADPRESET_SM_INFAULT) {
- printk(KERN_NOTICE "megaraid_sas: error, recovery st %x \n",
+ dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
instance->adprecovery);
return ;
}
if (instance->adprecovery == MEGASAS_ADPRESET_SM_INFAULT) {
- printk(KERN_NOTICE "megaraid_sas: FW detected to be in fault"
+ dev_notice(&instance->pdev->dev, "FW detected to be in fault"
"state, restarting it...\n");
instance->instancet->disable_intr(instance);
atomic_set(&instance->fw_reset_no_pci_access, 1);
instance->instancet->adp_reset(instance, instance->reg_set);
- atomic_set(&instance->fw_reset_no_pci_access, 0 );
+ atomic_set(&instance->fw_reset_no_pci_access, 0);
- printk(KERN_NOTICE "megaraid_sas: FW restarted successfully,"
+ dev_notice(&instance->pdev->dev, "FW restarted successfully,"
"initiating next stage...\n");
- printk(KERN_NOTICE "megaraid_sas: HBA recovery state machine,"
+ dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
"state 2 starting...\n");
- /*waitting for about 20 second before start the second init*/
+ /* waiting for about 20 second before start the second init */
for (wait = 0; wait < 30; wait++) {
msleep(1000);
}
if (megasas_transition_to_ready(instance, 1)) {
- printk(KERN_NOTICE "megaraid_sas:adapter not ready\n");
+ dev_notice(&instance->pdev->dev, "adapter not ready\n");
atomic_set(&instance->fw_reset_no_pci_access, 1);
megaraid_sas_kill_hba(instance);
megasas_issue_pending_cmds_again(instance);
instance->issuepend_done = 1;
}
- return ;
}
/**
* megasas_deplete_reply_queue - Processes all completed commands
* @instance: Adapter soft state
* @alt_status: Alternate status to be returned to
- * SCSI mid-layer instead of the status
- * returned by the FW
+ * SCSI mid-layer instead of the status
+ * returned by the FW
* Note: this must be called with hba lock held
*/
static int
instance->reg_set) & MFI_STATE_MASK;
if (fw_state != MFI_STATE_FAULT) {
- printk(KERN_NOTICE "megaraid_sas: fw state:%x\n",
+ dev_notice(&instance->pdev->dev, "fw state:%x\n",
fw_state);
}
if ((fw_state == MFI_STATE_FAULT) &&
(instance->disableOnlineCtrlReset == 0)) {
- printk(KERN_NOTICE "megaraid_sas: wait adp restart\n");
+ dev_notice(&instance->pdev->dev, "wait adp restart\n");
if ((instance->pdev->device ==
PCI_DEVICE_ID_LSI_SAS1064R) ||
atomic_set(&instance->fw_outstanding, 0);
megasas_internal_reset_defer_cmds(instance);
- printk(KERN_NOTICE "megasas: fwState=%x, stage:%d\n",
+ dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
fw_state, instance->adprecovery);
schedule_work(&instance->work_init);
return IRQ_HANDLED;
} else {
- printk(KERN_NOTICE "megasas: fwstate:%x, dis_OCR=%x\n",
+ dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
fw_state, instance->disableOnlineCtrlReset);
}
}
struct megasas_irq_context *irq_context = devp;
struct megasas_instance *instance = irq_context->instance;
unsigned long flags;
- irqreturn_t rc;
+ irqreturn_t rc;
if (atomic_read(&instance->fw_reset_no_pci_access))
return IRQ_HANDLED;
spin_lock_irqsave(&instance->hba_lock, flags);
- rc = megasas_deplete_reply_queue(instance, DID_OK);
+ rc = megasas_deplete_reply_queue(instance, DID_OK);
spin_unlock_irqrestore(&instance->hba_lock, flags);
return rc;
fw_state = abs_state & MFI_STATE_MASK;
if (fw_state != MFI_STATE_READY)
- printk(KERN_INFO "megasas: Waiting for FW to come to ready"
+ dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
" state\n");
while (fw_state != MFI_STATE_READY) {
switch (fw_state) {
case MFI_STATE_FAULT:
- printk(KERN_DEBUG "megasas: FW in FAULT state!!\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
if (ocr) {
max_wait = MEGASAS_RESET_WAIT_TIME;
cur_state = MFI_STATE_FAULT;
break;
default:
- printk(KERN_DEBUG "megasas: Unknown state 0x%x\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
fw_state);
return -ENODEV;
}
* Return error if fw_state hasn't changed after max_wait
*/
if (curr_abs_state == abs_state) {
- printk(KERN_DEBUG "FW state [%d] hasn't changed "
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
"in %d secs\n", fw_state, max_wait);
return -ENODEV;
}
abs_state = curr_abs_state;
fw_state = curr_abs_state & MFI_STATE_MASK;
}
- printk(KERN_INFO "megasas: FW now in Ready state\n");
+ dev_info(&instance->pdev->dev, "FW now in Ready state\n");
return 0;
}
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
sizeof(struct megasas_sge32);
- if (instance->flag_ieee) {
+ if (instance->flag_ieee)
sge_sz = sizeof(struct megasas_sge_skinny);
- }
/*
* For MFI controllers.
instance->pdev, total_sz, 256, 0);
if (!instance->frame_dma_pool) {
- printk(KERN_DEBUG "megasas: failed to setup frame pool\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
return -ENOMEM;
}
instance->pdev, 128, 4, 0);
if (!instance->sense_dma_pool) {
- printk(KERN_DEBUG "megasas: failed to setup sense pool\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
pci_pool_destroy(instance->frame_dma_pool);
instance->frame_dma_pool = NULL;
* whatever has been allocated
*/
if (!cmd->frame || !cmd->sense) {
- printk(KERN_DEBUG "megasas: pci_pool_alloc failed \n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n");
megasas_teardown_frame_pool(instance);
return -ENOMEM;
}
void megasas_free_cmds(struct megasas_instance *instance)
{
int i;
+
/* First free the MFI frame pool */
megasas_teardown_frame_pool(instance);
instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
if (!instance->cmd_list) {
- printk(KERN_DEBUG "megasas: out of memory\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
return -ENOMEM;
}
* Create a frame pool and assign one frame to each cmd
*/
if (megasas_create_frame_pool(instance)) {
- printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
megasas_free_cmds(instance);
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas (get_pd_list): Failed to get cmd\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
return -ENOMEM;
}
MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h);
if (!ci) {
- printk(KERN_DEBUG "Failed to alloc mem for pd_list\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
ret = megasas_issue_polled(instance, cmd);
/*
- * the following function will get the instance PD LIST.
- */
+ * the following function will get the instance PD LIST.
+ */
pd_addr = ci->addr;
- if ( ret == 0 &&
+ if (ret == 0 &&
(le32_to_cpu(ci->count) <
(MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) {
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas_get_ld_list: Failed to get cmd\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
return -ENOMEM;
}
&ci_h);
if (!ci) {
- printk(KERN_DEBUG "Failed to alloc mem in get_ld_list\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_WARNING
- "megasas:(megasas_ld_list_query): Failed to get cmd\n");
+ dev_warn(&instance->pdev->dev,
+ "megasas_ld_list_query: Failed to get cmd\n");
return -ENOMEM;
}
sizeof(struct MR_LD_TARGETID_LIST), &ci_h);
if (!ci) {
- printk(KERN_WARNING
- "megasas: Failed to alloc mem for ld_list_query\n");
+ dev_warn(&instance->pdev->dev,
+ "Failed to alloc mem for ld_list_query\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
"Legacy(64 VD) firmware");
- old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
+ old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
(sizeof(struct MR_LD_SPAN_MAP) *
(instance->fw_supported_vd_count - 1));
- new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
- fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) +
+ new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
+ fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) +
(sizeof(struct MR_LD_SPAN_MAP) *
(instance->drv_supported_vd_count - 1));
fusion->current_map_sz = new_map_sz;
else
fusion->current_map_sz = old_map_sz;
-
}
/**
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: Failed to get a free cmd\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
return -ENOMEM;
}
sizeof(struct megasas_ctrl_info), &ci_h);
if (!ci) {
- printk(KERN_DEBUG "Failed to alloc mem for ctrl info\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
megasas_issue_init_mfi(struct megasas_instance *instance)
{
__le32 context;
-
struct megasas_cmd *cmd;
-
struct megasas_init_frame *init_frame;
struct megasas_init_queue_info *initq_info;
dma_addr_t init_frame_h;
*/
if (megasas_issue_polled(instance, cmd)) {
- printk(KERN_ERR "megasas: Failed to init firmware\n");
+ dev_err(&instance->pdev->dev, "Failed to init firmware\n");
megasas_return_cmd(instance, cmd);
goto fail_fw_init;
}
&instance->reply_queue_h);
if (!instance->reply_queue) {
- printk(KERN_DEBUG "megasas: Out of DMA mem for reply queue\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
goto fail_reply_queue;
}
(instance->instancet->read_fw_status_reg(reg_set) &
0x04000000);
- printk(KERN_NOTICE "megasas_init_mfi: fw_support_ieee=%d",
+ dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
instance->fw_support_ieee);
if (instance->fw_support_ieee)
instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
if (pci_request_selected_regions(instance->pdev, instance->bar,
"megasas: LSI")) {
- printk(KERN_DEBUG "megasas: IO memory region busy!\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
return -EBUSY;
}
instance->reg_set = ioremap_nocache(base_addr, 8192);
if (!instance->reg_set) {
- printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
goto fail_ioremap;
}
(instance, instance->reg_set);
atomic_set(&instance->fw_reset_no_pci_access, 0);
dev_info(&instance->pdev->dev,
- "megasas: FW restarted successfully from %s!\n",
+ "FW restarted successfully from %s!\n",
__func__);
/*waitting for about 30 second before retry*/
instance->instancet->enable_intr(instance);
- printk(KERN_ERR "megasas: INIT adapter done\n");
+ dev_err(&instance->pdev->dev, "INIT adapter done\n");
/** for passthrough
- * the following function will get the PD LIST.
- */
-
- memset(instance->pd_list, 0 ,
+ * the following function will get the PD LIST.
+ */
+ memset(instance->pd_list, 0,
(MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
if (megasas_get_pd_list(instance) < 0) {
- printk(KERN_ERR "megasas: failed to get PD list\n");
+ dev_err(&instance->pdev->dev, "failed to get PD list\n");
goto fail_get_pd_list;
}
le16_to_cpu(ctrl_info->max_strips_per_io);
max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
- tmp_sectors = min_t(u32, max_sectors_1 , max_sectors_2);
+ tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
instance->disableOnlineCtrlReset =
ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset;
aen_cmd, 30);
if (ret_val) {
- printk(KERN_DEBUG "megasas: Failed to abort "
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
"previous AEN command\n");
return ret_val;
}
static int megasas_io_attach(struct megasas_instance *instance)
{
struct Scsi_Host *host = instance->host;
- u32 error;
+ u32 error;
/*
* Export parameters required by SCSI mid-layer
(max_sectors <= MEGASAS_MAX_SECTORS)) {
instance->max_sectors_per_req = max_sectors;
} else {
- printk(KERN_INFO "megasas: max_sectors should be > 0"
+ dev_info(&instance->pdev->dev, "max_sectors should be > 0"
"and <= %d (or < 1MB for GEN2 controller)\n",
instance->max_sectors_per_req);
}
megasas_set_dma_mask(struct pci_dev *pdev)
{
/*
- * All our contollers are capable of performing 64-bit DMA
+ * All our controllers are capable of performing 64-bit DMA
*/
if (IS_DMA64) {
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) {
sizeof(struct megasas_instance));
if (!host) {
- printk(KERN_DEBUG "megasas: scsi_host_alloc failed\n");
+ dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
goto fail_alloc_instance;
}
instance = (struct megasas_instance *)host->hostdata;
memset(instance, 0, sizeof(*instance));
- atomic_set( &instance->fw_reset_no_pci_access, 0 );
+ atomic_set(&instance->fw_reset_no_pci_access, 0);
instance->pdev = pdev;
switch (instance->pdev->device) {
instance->ctrl_context = (void *)__get_free_pages(GFP_KERNEL,
instance->ctrl_context_pages);
if (!instance->ctrl_context) {
- printk(KERN_DEBUG "megasas: Failed to allocate "
+ dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate "
"memory for Fusion context info\n");
goto fail_alloc_dma_buf;
}
&instance->consumer_h);
if (!instance->producer || !instance->consumer) {
- printk(KERN_DEBUG "megasas: Failed to allocate"
+ dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate"
"memory for producer, consumer\n");
goto fail_alloc_dma_buf;
}
CRASH_DMA_BUF_SIZE,
&instance->crash_dump_h);
if (!instance->crash_dump_buf)
- dev_err(&instance->pdev->dev, "Can't allocate Firmware "
+ dev_err(&pdev->dev, "Can't allocate Firmware "
"crash dump DMA buffer\n");
megasas_poll_wait_aen = 0;
&instance->evt_detail_h);
if (!instance->evt_detail) {
- printk(KERN_DEBUG "megasas: Failed to allocate memory for "
+ dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for "
"event detail structure\n");
goto fail_alloc_dma_buf;
}
pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
&instance->vf_affiliation_111_h);
if (!instance->vf_affiliation_111)
- printk(KERN_WARNING "megasas: Can't allocate "
+ dev_warn(&pdev->dev, "Can't allocate "
"memory for VF affiliation buffer\n");
} else {
instance->vf_affiliation =
sizeof(struct MR_LD_VF_AFFILIATION),
&instance->vf_affiliation_h);
if (!instance->vf_affiliation)
- printk(KERN_WARNING "megasas: Can't allocate "
+ dev_warn(&pdev->dev, "Can't allocate "
"memory for VF affiliation buffer\n");
}
}
* Initiate AEN (Asynchronous Event Notification)
*/
if (megasas_start_aen(instance)) {
- printk(KERN_DEBUG "megasas: start aen failed\n");
+ dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
goto fail_start_aen;
}
return 0;
- fail_start_aen:
- fail_io_attach:
+fail_start_aen:
+fail_io_attach:
megasas_mgmt_info.count--;
megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
megasas_mgmt_info.max_index--;
if (instance->msix_vectors)
pci_disable_msix(instance->pdev);
fail_init_mfi:
- fail_alloc_dma_buf:
+fail_alloc_dma_buf:
if (instance->evt_detail)
pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
instance->evt_detail,
instance->consumer_h);
scsi_host_put(host);
- fail_alloc_instance:
- fail_set_dma_mask:
+fail_alloc_instance:
+fail_set_dma_mask:
pci_disable_device(pdev);
return -ENODEV;
" from %s\n", __func__);
megasas_return_cmd(instance, cmd);
-
- return;
}
/**
"from %s\n", __func__);
megasas_return_cmd(instance, cmd);
-
- return;
}
#ifdef CONFIG_PM
rval = pci_enable_device_mem(pdev);
if (rval) {
- printk(KERN_ERR "megasas: Enable device failed\n");
+ dev_err(&pdev->dev, "Enable device failed\n");
return rval;
}
* Initiate AEN (Asynchronous Event Notification)
*/
if (megasas_start_aen(instance))
- printk(KERN_ERR "megasas: Start AEN failed\n");
+ dev_err(&instance->pdev->dev, "Start AEN failed\n");
return 0;
scsi_host_put(host);
pci_disable_device(pdev);
-
- return;
}
/**
{
unsigned int mask;
unsigned long flags;
+
poll_wait(file, &megasas_poll_wait, wait);
spin_lock_irqsave(&poll_aen_lock, flags);
if (megasas_poll_wait_aen)
- mask = (POLLIN | POLLRDNORM);
-
+ mask = (POLLIN | POLLRDNORM);
else
mask = 0;
megasas_poll_wait_aen = 0;
* @cmd: MFI command frame
*/
-static int megasas_set_crash_dump_params_ioctl(
- struct megasas_cmd *cmd)
+static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
{
struct megasas_instance *local_instance;
int i, error = 0;
memset(kbuff_arr, 0, sizeof(kbuff_arr));
if (ioc->sge_count > MAX_IOCTL_SGE) {
- printk(KERN_DEBUG "megasas: SGE count [%d] > max limit [%d]\n",
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
ioc->sge_count, MAX_IOCTL_SGE);
return -EINVAL;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: Failed to get a cmd packet\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
return -ENOMEM;
}
ioc->sgl[i].iov_len,
&buf_handle, GFP_KERNEL);
if (!kbuff_arr[i]) {
- printk(KERN_DEBUG "megasas: Failed to alloc "
- "kernel SGL buffer for IOCTL \n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
+ "kernel SGL buffer for IOCTL\n");
error = -ENOMEM;
goto out;
}
if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
sense, ioc->sense_len)) {
- printk(KERN_ERR "megasas: Failed to copy out to user "
+ dev_err(&instance->pdev->dev, "Failed to copy out to user "
"sense data\n");
error = -EFAULT;
goto out;
*/
if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
&cmd->frame->hdr.cmd_status, sizeof(u8))) {
- printk(KERN_DEBUG "megasas: Error copying out cmd_status\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
error = -EFAULT;
}
- out:
+out:
if (sense) {
dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
sense, sense_handle);
}
if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
- printk(KERN_ERR "Controller in crit error\n");
+ dev_err(&instance->pdev->dev, "Controller in crit error\n");
error = -ENODEV;
goto out_kfree_ioc;
}
spin_unlock_irqrestore(&instance->hba_lock, flags);
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
- printk(KERN_NOTICE "megasas: waiting"
+ dev_notice(&instance->pdev->dev, "waiting"
"for controller reset to finish\n");
}
if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
spin_unlock_irqrestore(&instance->hba_lock, flags);
- printk(KERN_ERR "megaraid_sas: timed out while"
+ dev_err(&instance->pdev->dev, "timed out while"
"waiting for HBA to recover\n");
error = -ENODEV;
goto out_up;
spin_unlock_irqrestore(&instance->hba_lock, flags);
error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
- out_up:
+out_up:
up(&instance->ioctl_sem);
- out_kfree_ioc:
+out_kfree_ioc:
kfree(ioc);
return error;
}
spin_unlock_irqrestore(&instance->hba_lock, flags);
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
- printk(KERN_NOTICE "megasas: waiting for"
+ dev_notice(&instance->pdev->dev, "waiting for"
"controller reset to finish\n");
}
spin_lock_irqsave(&instance->hba_lock, flags);
if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
spin_unlock_irqrestore(&instance->hba_lock, flags);
- printk(KERN_ERR "megaraid_sas: timed out while waiting"
- "for HBA to recover.\n");
+ dev_err(&instance->pdev->dev, "timed out while waiting"
+ "for HBA to recover\n");
return -ENODEV;
}
spin_unlock_irqrestore(&instance->hba_lock, flags);
megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count)
{
int retval = count;
- if(sscanf(buf,"%u",&megasas_dbg_lvl)<1){
+
+ if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
printk(KERN_ERR "megasas: could not set dbg_lvl\n");
retval = -EINVAL;
}
if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL)
break;
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
- printk(KERN_NOTICE "megasas: %s waiting for "
+ dev_notice(&instance->pdev->dev, "%s waiting for "
"controller reset to finish for scsi%d\n",
__func__, instance->host->host_no);
}
pd_index =
(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
- sdev1 =
- scsi_device_lookup(host, i, j, 0);
+ sdev1 = scsi_device_lookup(host, i, j, 0);
if (instance->pd_list[pd_index].driveState
== MR_PD_STATE_SYSTEM) {
- if (!sdev1) {
+ if (!sdev1)
scsi_add_device(host, i, j, 0);
- }
if (sdev1)
scsi_device_put(sdev1);
pd_index =
(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
- sdev1 =
- scsi_device_lookup(host, i, j, 0);
+ sdev1 = scsi_device_lookup(host, i, j, 0);
if (instance->pd_list[pd_index].driveState
== MR_PD_STATE_SYSTEM) {
- if (sdev1) {
+ if (sdev1)
scsi_device_put(sdev1);
- }
} else {
if (sdev1) {
scsi_remove_device(sdev1);
break;
}
} else {
- printk(KERN_ERR "invalid evt_detail!\n");
+ dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
kfree(ev);
return;
}
if (doscan) {
- printk(KERN_INFO "megaraid_sas: scanning for scsi%d...\n",
+ dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
instance->host->host_no);
if (megasas_get_pd_list(instance) == 0) {
for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
}
}
- if ( instance->aen_cmd != NULL ) {
+ if (instance->aen_cmd != NULL) {
kfree(ev);
return ;
}
mutex_unlock(&instance->aen_mutex);
if (error)
- printk(KERN_ERR "register aen failed error %x\n", error);
+ dev_err(&instance->pdev->dev, "register aen failed error %x\n", error);
kfree(ev);
}
struct megasas_cmd_fusion *cmd;
if (!fusion->sg_dma_pool || !fusion->sense_dma_pool) {
- printk(KERN_ERR "megasas: dma pool is null. SG Pool %p, "
+ dev_err(&instance->pdev->dev, "dma pool is null. SG Pool %p, "
"sense pool : %p\n", fusion->sg_dma_pool,
fusion->sense_dma_pool);
return;
total_sz_chain_frame, 4,
0);
if (!fusion->sg_dma_pool) {
- printk(KERN_DEBUG "megasas: failed to setup request pool "
- "fusion\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup request pool fusion\n");
return -ENOMEM;
}
fusion->sense_dma_pool = pci_pool_create("megasas sense pool fusion",
SCSI_SENSE_BUFFERSIZE, 64, 0);
if (!fusion->sense_dma_pool) {
- printk(KERN_DEBUG "megasas: failed to setup sense pool "
- "fusion\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool fusion\n");
pci_pool_destroy(fusion->sg_dma_pool);
fusion->sg_dma_pool = NULL;
return -ENOMEM;
* whatever has been allocated
*/
if (!cmd->sg_frame || !cmd->sense) {
- printk(KERN_DEBUG "megasas: pci_pool_alloc failed\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n");
megasas_teardown_frame_pool_fusion(instance);
return -ENOMEM;
}
&fusion->req_frames_desc_phys, GFP_KERNEL);
if (!fusion->req_frames_desc) {
- printk(KERN_ERR "megasas; Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"request_frames\n");
goto fail_req_desc;
}
fusion->reply_alloc_sz * count, 16, 0);
if (!fusion->reply_frames_desc_pool) {
- printk(KERN_ERR "megasas; Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"reply_frame pool\n");
goto fail_reply_desc;
}
pci_pool_alloc(fusion->reply_frames_desc_pool, GFP_KERNEL,
&fusion->reply_frames_desc_phys);
if (!fusion->reply_frames_desc) {
- printk(KERN_ERR "megasas; Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"reply_frame pool\n");
pci_pool_destroy(fusion->reply_frames_desc_pool);
goto fail_reply_desc;
fusion->io_frames_alloc_sz, 16, 0);
if (!fusion->io_request_frames_pool) {
- printk(KERN_ERR "megasas: Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"io_request_frame pool\n");
goto fail_io_frames;
}
pci_pool_alloc(fusion->io_request_frames_pool, GFP_KERNEL,
&fusion->io_request_frames_phys);
if (!fusion->io_request_frames) {
- printk(KERN_ERR "megasas: Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"io_request_frames frames\n");
pci_pool_destroy(fusion->io_request_frames_pool);
goto fail_io_frames;
* max_cmd, GFP_KERNEL);
if (!fusion->cmd_list) {
- printk(KERN_DEBUG "megasas: out of memory. Could not alloc "
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory. Could not alloc "
"memory for cmd_list_fusion\n");
goto fail_cmd_list;
}
fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
GFP_KERNEL);
if (!fusion->cmd_list[i]) {
- printk(KERN_ERR "Could not alloc cmd list fusion\n");
+ dev_err(&instance->pdev->dev, "Could not alloc cmd list fusion\n");
for (j = 0; j < i; j++)
kfree(fusion->cmd_list[j]);
* Create a frame pool and assign one frame to each cmd
*/
if (megasas_create_frame_pool_fusion(instance)) {
- printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
megasas_free_cmds_fusion(instance);
goto fail_req_desc;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_ERR "Could not allocate cmd for INIT Frame\n");
+ dev_err(&instance->pdev->dev, "Could not allocate cmd for INIT Frame\n");
ret = 1;
goto fail_get_cmd;
}
&ioc_init_handle, GFP_KERNEL);
if (!IOCInitMessage) {
- printk(KERN_ERR "Could not allocate memory for "
+ dev_err(&instance->pdev->dev, "Could not allocate memory for "
"IOCInitMessage\n");
ret = 1;
goto fail_fw_init;
ret = 1;
goto fail_fw_init;
}
- printk(KERN_ERR "megasas:IOC Init cmd success\n");
+ dev_err(&instance->pdev->dev, "Init cmd success\n");
ret = 0;
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: Failed to get cmd for map info.\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for map info\n");
return -ENOMEM;
}
ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
if (!ci) {
- printk(KERN_DEBUG "Failed to alloc mem for ld_map_info\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ld_map_info\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
- printk(KERN_DEBUG "megasas: Failed to get cmd for sync"
- "info.\n");
+ dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for sync info\n");
return -ENOMEM;
}
&fusion->ld_map_phys[i],
GFP_KERNEL);
if (!fusion->ld_map[i]) {
- printk(KERN_ERR "megasas: Could not allocate memory "
+ dev_err(&instance->pdev->dev, "Could not allocate memory "
"for map info\n");
goto fail_map_info;
}
cmd->scmd->result = DID_IMM_RETRY << 16;
break;
default:
- printk(KERN_DEBUG "megasas: FW status %#x\n", status);
+ dev_printk(KERN_DEBUG, &cmd->instance->pdev->dev, "FW status %#x\n", status);
cmd->scmd->result = DID_ERROR << 16;
break;
}
&io_request->SGL, cmd);
if (sge_count > instance->max_num_sge) {
- printk(KERN_ERR "megasas: Error. sge_count (0x%x) exceeds "
+ dev_err(&instance->pdev->dev, "Error. sge_count (0x%x) exceeds "
"max (0x%x) allowed\n", sge_count,
instance->max_num_sge);
return 1;
struct fusion_context *fusion;
if (index >= instance->max_fw_cmds) {
- printk(KERN_ERR "megasas: Invalid SMID (0x%x)request for "
+ dev_err(&instance->pdev->dev, "Invalid SMID (0x%x)request for "
"descriptor for scsi%d\n", index,
instance->host->host_no);
return NULL;
if (megasas_build_io_fusion(instance, scmd, cmd)) {
megasas_return_cmd_fusion(instance, cmd);
- printk(KERN_ERR "megasas: Error building command.\n");
+ dev_err(&instance->pdev->dev, "Error building command\n");
cmd->request_desc = NULL;
return 1;
}
if (cmd->io_request->ChainOffset != 0 &&
cmd->io_request->ChainOffset != 0xF)
- printk(KERN_ERR "megasas: The chain offset value is not "
+ dev_err(&instance->pdev->dev, "The chain offset value is not "
"correct : %x\n", cmd->io_request->ChainOffset);
/*
if (reply_descript_type ==
MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) {
if (megasas_dbg_lvl == 5)
- printk(KERN_ERR "\nmegasas: FAST Path "
+ dev_err(&instance->pdev->dev, "\nFAST Path "
"IO Success\n");
}
/* Fall thru and complete IO */
else if (fw_state == MFI_STATE_FAULT)
schedule_work(&instance->work_init);
} else if (fw_state == MFI_STATE_FAULT) {
- printk(KERN_WARNING "megaraid_sas: Iop2SysDoorbellInt"
+ dev_warn(&instance->pdev->dev, "Iop2SysDoorbellInt"
"for scsi%d\n", instance->host->host_no);
schedule_work(&instance->work_init);
}
u16 index;
if (build_mpt_mfi_pass_thru(instance, cmd)) {
- printk(KERN_ERR "Couldn't build MFI pass thru cmd\n");
+ dev_err(&instance->pdev->dev, "Couldn't build MFI pass thru cmd\n");
return NULL;
}
req_desc = build_mpt_cmd(instance, cmd);
if (!req_desc) {
- printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n");
+ dev_err(&instance->pdev->dev, "Couldn't issue MFI pass thru cmd\n");
return;
}
megasas_fire_cmd_fusion(instance, req_desc);
fw_state = instance->instancet->read_fw_status_reg(
instance->reg_set) & MFI_STATE_MASK;
if (fw_state == MFI_STATE_FAULT) {
- printk(KERN_WARNING "megasas: Found FW in FAULT state,"
+ dev_warn(&instance->pdev->dev, "Found FW in FAULT state,"
" will reset adapter scsi%d.\n",
instance->host->host_no);
retval = 1;
hb_seconds_missed++;
if (hb_seconds_missed ==
(MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF/HZ)) {
- printk(KERN_WARNING "megasas: SR-IOV:"
+ dev_warn(&instance->pdev->dev, "SR-IOV:"
" Heartbeat never completed "
" while polling during I/O "
" timeout handling for "
goto out;
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
- printk(KERN_NOTICE "megasas: [%2d]waiting for %d "
+ dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
"commands to complete for scsi%d\n", i,
outstanding, instance->host->host_no);
megasas_complete_cmd_dpc_fusion(
}
if (atomic_read(&instance->fw_outstanding)) {
- printk("megaraid_sas: pending commands remain after waiting, "
+ dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
"will reset adapter scsi%d.\n",
instance->host->host_no);
retval = 1;
mutex_lock(&instance->reset_mutex);
if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
- printk(KERN_WARNING "megaraid_sas: Hardware critical error, "
+ dev_warn(&instance->pdev->dev, "Hardware critical error, "
"returning FAILED for scsi%d.\n",
instance->host->host_no);
mutex_unlock(&instance->reset_mutex);
if (megasas_wait_for_outstanding_fusion(instance, iotimeout,
&convert)) {
instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
- printk(KERN_WARNING "megaraid_sas: resetting fusion "
+ dev_warn(&instance->pdev->dev, "resetting fusion "
"adapter scsi%d.\n", instance->host->host_no);
if (convert)
iotimeout = 0;
if (instance->disableOnlineCtrlReset ||
(abs_state == MFI_STATE_FAULT && !reset_adapter)) {
/* Reset not supported, kill adapter */
- printk(KERN_WARNING "megaraid_sas: Reset not supported"
+ dev_warn(&instance->pdev->dev, "Reset not supported"
", killing adapter scsi%d.\n",
instance->host->host_no);
megaraid_sas_kill_hba(instance);
instance->hb_host_mem->HB.driverCounter)) {
instance->hb_host_mem->HB.driverCounter =
instance->hb_host_mem->HB.fwCounter;
- printk(KERN_WARNING "megasas: SR-IOV:"
+ dev_warn(&instance->pdev->dev, "SR-IOV:"
"Late FW heartbeat update for "
"scsi%d.\n",
instance->host->host_no);
abs_state = status_reg &
MFI_STATE_MASK;
if (abs_state == MFI_STATE_READY) {
- printk(KERN_WARNING "megasas"
- ": SR-IOV: FW was found"
+ dev_warn(&instance->pdev->dev,
+ "SR-IOV: FW was found"
"to be in ready state "
"for scsi%d.\n",
instance->host->host_no);
msleep(20);
}
if (abs_state != MFI_STATE_READY) {
- printk(KERN_WARNING "megasas: SR-IOV: "
+ dev_warn(&instance->pdev->dev, "SR-IOV: "
"FW not in ready state after %d"
" seconds for scsi%d, status_reg = "
"0x%x.\n",
host_diag =
readl(&instance->reg_set->fusion_host_diag);
if (retry++ == 100) {
- printk(KERN_WARNING "megaraid_sas: "
+ dev_warn(&instance->pdev->dev,
"Host diag unlock failed! "
"for scsi%d\n",
instance->host->host_no);
host_diag =
readl(&instance->reg_set->fusion_host_diag);
if (retry++ == 1000) {
- printk(KERN_WARNING "megaraid_sas: "
+ dev_warn(&instance->pdev->dev,
"Diag reset adapter never "
"cleared for scsi%d!\n",
instance->host->host_no);
instance->reg_set) & MFI_STATE_MASK;
}
if (abs_state <= MFI_STATE_FW_INIT) {
- printk(KERN_WARNING "megaraid_sas: firmware "
+ dev_warn(&instance->pdev->dev, "firmware "
"state < MFI_STATE_FW_INIT, state = "
"0x%x for scsi%d\n", abs_state,
instance->host->host_no);
/* Wait for FW to become ready */
if (megasas_transition_to_ready(instance, 1)) {
- printk(KERN_WARNING "megaraid_sas: Failed to "
+ dev_warn(&instance->pdev->dev, "Failed to "
"transition controller to ready "
"for scsi%d.\n",
instance->host->host_no);
megasas_reset_reply_desc(instance);
if (megasas_ioc_init_fusion(instance)) {
- printk(KERN_WARNING "megaraid_sas: "
+ dev_warn(&instance->pdev->dev,
"megasas_ioc_init_fusion() failed!"
" for scsi%d\n",
instance->host->host_no);
}
/* Adapter reset completed successfully */
- printk(KERN_WARNING "megaraid_sas: Reset "
+ dev_warn(&instance->pdev->dev, "Reset "
"successful for scsi%d.\n",
instance->host->host_no);
goto out;
}
/* Reset failed, kill the adapter */
- printk(KERN_WARNING "megaraid_sas: Reset failed, killing "
+ dev_warn(&instance->pdev->dev, "Reset failed, killing "
"adapter scsi%d.\n", instance->host->host_no);
megaraid_sas_kill_hba(instance);
instance->skip_heartbeat_timer_del = 1;
goto out_fail;
}
- for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
+ for (i = 0, memap_sz = 0, pio_sz = 0; (i < DEVICE_COUNT_RESOURCE) &&
+ (!memap_sz || !pio_sz); i++) {
if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
if (pio_sz)
continue;
chip_phys = (u64)ioc->chip_phys;
memap_sz = pci_resource_len(pdev, i);
ioc->chip = ioremap(ioc->chip_phys, memap_sz);
- if (ioc->chip == NULL) {
- printk(MPT2SAS_ERR_FMT "unable to map "
- "adapter memory!\n", ioc->name);
- r = -EINVAL;
- goto out_fail;
- }
}
}
}
+ if (ioc->chip == NULL) {
+ printk(MPT2SAS_ERR_FMT "unable to map adapter memory! "
+ "or resource not found\n", ioc->name);
+ r = -EINVAL;
+ goto out_fail;
+ }
+
_base_mask_interrupts(ioc);
r = _base_get_ioc_facts(ioc, CAN_SLEEP);
* @flags: MPT_TARGET_FLAGS_XXX flags
* @deleted: target flaged for deletion
* @tm_busy: target is busy with TM request.
+ * @sdev: The sas_device associated with this target
*/
struct MPT2SAS_TARGET {
struct scsi_target *starget;
u32 flags;
u8 deleted;
u8 tm_busy;
+ struct _sas_device *sdev;
};
u8 phy;
u8 responding;
u8 pfa_led_on;
+ struct kref refcount;
};
+static inline void sas_device_get(struct _sas_device *s)
+{
+ kref_get(&s->refcount);
+}
+
+static inline void sas_device_free(struct kref *r)
+{
+ kfree(container_of(r, struct _sas_device, refcount));
+}
+
+static inline void sas_device_put(struct _sas_device *s)
+{
+ kref_put(&s->refcount, sas_device_free);
+}
+
/**
* struct _raid_device - raid volume link list
* @list: sas device list
u16 handle);
struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER
*ioc, u64 sas_address);
-struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address(
+struct _sas_device *mpt2sas_get_sdev_by_addr(
+ struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
+struct _sas_device *__mpt2sas_get_sdev_by_addr(
struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc);
u8 VP_ID;
u8 ignore;
u16 event;
+ struct kref refcount;
char event_data[0] __aligned(4);
};
+static void fw_event_work_free(struct kref *r)
+{
+ kfree(container_of(r, struct fw_event_work, refcount));
+}
+
+static void fw_event_work_get(struct fw_event_work *fw_work)
+{
+ kref_get(&fw_work->refcount);
+}
+
+static void fw_event_work_put(struct fw_event_work *fw_work)
+{
+ kref_put(&fw_work->refcount, fw_event_work_free);
+}
+
+static struct fw_event_work *alloc_fw_event_work(int len)
+{
+ struct fw_event_work *fw_event;
+
+ fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC);
+ if (!fw_event)
+ return NULL;
+
+ kref_init(&fw_event->refcount);
+ return fw_event;
+}
+
/* raid transport support */
static struct raid_template *mpt2sas_raid_template;
}
}
+static struct _sas_device *
+__mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
+ struct MPT2SAS_TARGET *tgt_priv)
+{
+ struct _sas_device *ret;
+
+ assert_spin_locked(&ioc->sas_device_lock);
+
+ ret = tgt_priv->sdev;
+ if (ret)
+ sas_device_get(ret);
+
+ return ret;
+}
+
+static struct _sas_device *
+mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
+ struct MPT2SAS_TARGET *tgt_priv)
+{
+ struct _sas_device *ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ ret = __mpt2sas_get_sdev_from_target(ioc, tgt_priv);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return ret;
+}
+
+
+struct _sas_device *
+__mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
+ u64 sas_address)
+{
+ struct _sas_device *sas_device;
+
+ assert_spin_locked(&ioc->sas_device_lock);
+
+ list_for_each_entry(sas_device, &ioc->sas_device_list, list)
+ if (sas_device->sas_address == sas_address)
+ goto found_device;
+
+ list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
+ if (sas_device->sas_address == sas_address)
+ goto found_device;
+
+ return NULL;
+
+found_device:
+ sas_device_get(sas_device);
+ return sas_device;
+}
+
/**
- * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
+ * mpt2sas_get_sdev_by_addr - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* Context: Calling function should acquire ioc->sas_device_lock
* object.
*/
struct _sas_device *
-mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
+mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
u64 sas_address)
{
struct _sas_device *sas_device;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
+ sas_address);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return sas_device;
+}
+
+static struct _sas_device *
+__mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+{
+ struct _sas_device *sas_device;
+
+ assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
- if (sas_device->sas_address == sas_address)
- return sas_device;
+ if (sas_device->handle == handle)
+ goto found_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
- if (sas_device->sas_address == sas_address)
- return sas_device;
+ if (sas_device->handle == handle)
+ goto found_device;
return NULL;
+
+found_device:
+ sas_device_get(sas_device);
+ return sas_device;
}
/**
- * _scsih_sas_device_find_by_handle - sas device search
+ * mpt2sas_get_sdev_by_handle - sas device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
* object.
*/
static struct _sas_device *
-_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
+mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
+ unsigned long flags;
- list_for_each_entry(sas_device, &ioc->sas_device_list, list)
- if (sas_device->handle == handle)
- return sas_device;
-
- list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
- if (sas_device->handle == handle)
- return sas_device;
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return NULL;
+ return sas_device;
}
/**
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
- * Removing object and freeing associated memory from the ioc->sas_device_list.
+ * If sas_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
if (!sas_device)
return;
+ /*
+ * The lock serializes access to the list, but we still need to verify
+ * that nobody removed the entry while we were waiting on the lock.
+ */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- list_del(&sas_device->list);
- kfree(sas_device);
+ if (!list_empty(&sas_device->list)) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
sas_device->handle, (unsigned long long)sas_device->sas_address));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
goto not_sata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
goto not_sata;
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_device_priv_data->sas_target->sas_address);
- if (sas_device && sas_device->device_info &
- MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
- max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
+ if (sas_device) {
+ if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+ max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
+
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
not_sata:
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
if (sas_device) {
sas_target_priv_data->handle = sas_device->handle;
sas_target_priv_data->sas_address = sas_device->sas_address;
+ sas_target_priv_data->sdev = sas_device;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (test_bit(sas_device->handle, ioc->pd_handles))
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
+
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- rphy->identify.sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
+ if (sas_device) {
+ /*
+ * Corresponding get() is in _scsih_target_alloc()
+ */
+ sas_target_priv_data->sdev = NULL;
+ sas_device_put(sas_device);
+
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
out:
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_target_priv_data->sas_address);
if (sas_device && (sas_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
__func__, __LINE__);
sas_device->starget = starget;
}
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_target_priv_data->sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc,
+ sas_target_priv_data);
if (sas_device && !sas_target_priv_data->num_luns)
sas_device->starget = NULL;
+
+ if (sas_device)
+ sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
(unsigned long long) sas_device->enclosure_logical_id,
sas_device->slot);
+ sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, handle, sdev);
-
_scsih_change_queue_depth(sdev, qdepth);
if (ssp_target) {
sas_read_port_mode_page(sdev);
_scsih_enable_tlr(ioc, sdev);
}
+
return 0;
}
device_str, (unsigned long long)priv_target->sas_address);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- priv_target->sas_address);
+ sas_device = __mpt2sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
if (priv_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
"enclosure_logical_id(0x%016llx), slot(%d)\n",
(unsigned long long)sas_device->enclosure_logical_id,
sas_device->slot);
+
+ sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
- struct _sas_device *sas_device;
- unsigned long flags;
+ struct _sas_device *sas_device = NULL;
u16 handle;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
+ struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget, "attempting device reset! "
"scmd(%p)\n", scmd);
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc,
- sas_device_priv_data->sas_target->handle);
+ sas_device = mpt2sas_get_sdev_from_target(ioc,
+ target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
return r;
}
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT2SAS_DEVICE *sas_device_priv_data;
- struct _sas_device *sas_device;
- unsigned long flags;
+ struct _sas_device *sas_device = NULL;
u16 handle;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
+ struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget, "attempting target reset! "
"scmd(%p)\n", scmd);
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc,
- sas_device_priv_data->sas_target->handle);
+ sas_device = mpt2sas_get_sdev_from_target(ioc,
+ target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
} else
handle = sas_device_priv_data->sas_target->handle;
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+
+ if (sas_device)
+ sas_device_put(sas_device);
+
return r;
}
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
+ fw_event_work_get(fw_event);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
+ fw_event_work_get(fw_event);
queue_delayed_work(ioc->firmware_event_thread,
&fw_event->delayed_work, 0);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
- * _scsih_fw_event_free - delete fw_event
+ * _scsih_fw_event_del_from_list - delete fw_event from the list
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
- * This removes firmware event object from link list, frees associated memory.
+ * If the fw_event is on the fw_event_list, remove it and do a put.
*
* Return nothing.
*/
static void
-_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
+_scsih_fw_event_del_from_list(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
- list_del(&fw_event->list);
- kfree(fw_event);
+ if (!list_empty(&fw_event->list)) {
+ list_del_init(&fw_event->list);
+ fw_event_work_put(fw_event);
+ }
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
-
/**
* _scsih_error_recovery_delete_devices - remove devices not responding
* @ioc: per adapter object
if (ioc->is_driver_loading)
return;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
}
/**
{
struct fw_event_work *fw_event;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
+}
+
+static struct fw_event_work *dequeue_next_fw_event(struct MPT2SAS_ADAPTER *ioc)
+{
+ unsigned long flags;
+ struct fw_event_work *fw_event = NULL;
+
+ spin_lock_irqsave(&ioc->fw_event_lock, flags);
+ if (!list_empty(&ioc->fw_event_list)) {
+ fw_event = list_first_entry(&ioc->fw_event_list,
+ struct fw_event_work, list);
+ list_del_init(&fw_event->list);
+ }
+ spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+
+ return fw_event;
}
/**
static void
_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
{
- struct fw_event_work *fw_event, *next;
+ struct fw_event_work *fw_event;
if (list_empty(&ioc->fw_event_list) ||
!ioc->firmware_event_thread || in_interrupt())
return;
- list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
- if (cancel_delayed_work_sync(&fw_event->delayed_work)) {
- _scsih_fw_event_free(ioc, fw_event);
- continue;
- }
+ while ((fw_event = dequeue_next_fw_event(ioc))) {
+ /*
+ * Wait on the fw_event to complete. If this returns 1, then
+ * the event was never executed, and we need a put for the
+ * reference the delayed_work had on the fw_event.
+ *
+ * If it did execute, we wait for it to finish, and the put will
+ * happen from _firmware_event_work()
+ */
+ if (cancel_delayed_work_sync(&fw_event->delayed_work))
+ fw_event_work_put(fw_event);
+
+ fw_event_work_put(fw_event);
}
}
list_for_each_entry(mpt2sas_port,
&sas_expander->sas_port_list, port_list) {
- if (mpt2sas_port->remote_identify.device_type ==
- SAS_END_DEVICE) {
+ if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device =
- mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- mpt2sas_port->remote_identify.sas_address);
- if (sas_device)
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
+ mpt2sas_port->remote_identify.sas_address);
+ if (sas_device) {
set_bit(sas_device->handle,
- ioc->blocking_handles);
+ ioc->blocking_handles);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
- struct _sas_device *sas_device;
+ struct _sas_device *sas_device = NULL;
struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
u64 sas_address = 0;
unsigned long flags;
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device && sas_device->starget &&
sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
- return;
+ goto out;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
"DELAYED:tr:handle(0x%04x), (open)\n",
ioc->name, handle));
- return;
+ goto out;
}
dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpt2sas_base_put_smid_hi_priority(ioc, smid);
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
}
char *desc_scsi_state = ioc->tmp_string;
u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
struct _sas_device *sas_device = NULL;
- unsigned long flags;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT2SAS_TARGET *priv_target = starget->hostdata;
char *device_str = NULL;
printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
device_str, (unsigned long long)priv_target->sas_address);
} else {
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- priv_target->sas_address);
+ sas_device = mpt2sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
"phy(%d)\n", ioc->name, sas_device->sas_address,
"\tenclosure_logical_id(0x%016llx), slot(%d)\n",
ioc->name, sas_device->enclosure_logical_id,
sas_device->slot);
+
+ sas_device_put(sas_device);
}
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
Mpi2SepRequest_t mpi_request;
struct _sas_device *sas_device;
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
return;
&mpi_request)) != 0) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
__FILE__, __LINE__, __func__);
- return;
+ goto out;
}
sas_device->pfa_led_on = 1;
"enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
- return;
+ goto out;
}
+out:
+ sas_device_put(sas_device);
}
/**
{
struct fw_event_work *fw_event;
- fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT2SAS_TURN_ON_PFA_LED;
fw_event->device_handle = handle;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
}
/**
/* only handle non-raid devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (!sas_device) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
- ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)))
+ goto out_unlock;
+
starget_printk(KERN_WARNING, starget, "predicted fault\n");
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!event_reply) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
- return;
+ goto out;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt2sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
+ return;
+
+out_unlock:
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ goto out;
}
/**
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_address);
if (!sas_device) {
printk(MPT2SAS_ERR_FMT "device is not present "
"handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
if (unlikely(sas_device->handle != handle)) {
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
printk(MPT2SAS_ERR_FMT "device is not present "
"handle(0x%04x), flags!!!\n", ioc->name, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
+ goto out_unlock;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
- sas_device_pg0.AccessStatus)) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ sas_device_pg0.AccessStatus))
+ goto out_unlock;
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_ublock_io_device(ioc, sas_address);
+ if (sas_device)
+ sas_device_put(sas_device);
+ return;
+out_unlock:
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+ if (sas_device)
+ sas_device_put(sas_device);
}
/**
u32 ioc_status;
__le64 sas_address;
u32 device_info;
- unsigned long flags;
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
return -1;
}
-
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = mpt2sas_get_sdev_by_addr(ioc,
sas_address);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ if (sas_device) {
+ sas_device_put(sas_device);
return 0;
+ }
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
return -1;
}
+ kref_init(&sas_device->refcount);
sas_device->handle = handle;
if (_scsih_get_sas_address(ioc, le16_to_cpu
(sas_device_pg0.ParentDevHandle),
else
_scsih_sas_device_add(ioc, sas_device);
+ sas_device_put(sas_device);
return 0;
}
"handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
- kfree(sas_device);
}
/**
* _scsih_device_remove_by_handle - removing device object by handle
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- if (sas_device)
- list_del(&sas_device->list);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+
+ if (sas_device) {
_scsih_remove_device(ioc, sas_device);
+ sas_device_put(sas_device);
+ }
}
/**
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
- sas_address);
- if (sas_device)
- list_del(&sas_device->list);
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address);
+ if (sas_device) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+
+ if (sas_device) {
_scsih_remove_device(ioc, sas_device);
+ sas_device_put(sas_device);
+ }
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(event_data->SASAddress);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
sas_address);
- if (!sas_device || !sas_device->starget) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ if (!sas_device || !sas_device->starget)
+ goto out;
target_priv_data = sas_device->starget->hostdata;
- if (!target_priv_data) {
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- return;
- }
+ if (!target_priv_data)
+ goto out;
if (event_data->ReasonCode ==
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
+
+out:
+ if (sas_device)
+ sas_device_put(sas_device);
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
}
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
/* exposing raid component */
if (starget)
starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
+
+ sas_device_put(sas_device);
}
/**
&volume_wwid);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
set_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
/* hiding raid component */
if (starget)
starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
+
+ sas_device_put(sas_device);
}
/**
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
- unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
set_bit(handle, ioc->pd_handles);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
return;
+ }
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
- unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
if (!ioc->is_warpdrive)
set_bit(handle, ioc->pd_handles);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
-
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
return;
+ }
if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
struct _raid_device *raid_device, *raid_device_next;
struct list_head tmp_list;
unsigned long flags;
+ LIST_HEAD(head);
printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
ioc->name);
/* removing unresponding end devices */
printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
ioc->name);
+
+ /*
+ * Iterate, pulling off devices marked as non-responding. We become the
+ * owner for the reference the list had on any object we prune.
+ */
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry_safe(sas_device, sas_device_next,
- &ioc->sas_device_list, list) {
+ &ioc->sas_device_list, list) {
if (!sas_device->responding)
- mpt2sas_device_remove_by_sas_address(ioc,
- sas_device->sas_address);
+ list_move_tail(&sas_device->list, &head);
else
sas_device->responding = 0;
}
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ /*
+ * Now, uninitialize and remove the unresponding devices we pruned.
+ */
+ list_for_each_entry_safe(sas_device, sas_device_next, &head, list) {
+ _scsih_remove_device(ioc, sas_device);
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
/* removing unresponding volumes */
if (ioc->ir_firmware) {
}
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
+ if (sas_device) {
+ sas_device_put(sas_device);
continue;
+ }
if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle) != 0)
if (!(_scsih_is_end_device(
le32_to_cpu(sas_device_pg0.DeviceInfo))))
continue;
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = mpt2sas_get_sdev_by_addr(ioc,
le64_to_cpu(sas_device_pg0.SASAddress));
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
- if (sas_device)
+ if (sas_device) {
+ sas_device_put(sas_device);
continue;
+ }
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: "
struct fw_event_work, delayed_work.work);
struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
+ _scsih_fw_event_del_from_list(ioc, fw_event);
+
/* the queue is being flushed so ignore this event */
- if (ioc->remove_host ||
- ioc->pci_error_recovery) {
- _scsih_fw_event_free(ioc, fw_event);
+ if (ioc->remove_host || ioc->pci_error_recovery) {
+ fw_event_work_put(fw_event);
return;
}
switch (fw_event->event) {
case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
- while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
+ while (scsi_host_in_recovery(ioc->shost) ||
+ ioc->shost_recovery) {
+ /*
+ * If we're unloading, bail. Otherwise, this can become
+ * an infinite loop.
+ */
+ if (ioc->remove_host)
+ goto out;
+
ssleep(1);
+ }
_scsih_remove_unresponding_sas_devices(ioc);
_scsih_scan_for_devices_after_reset(ioc);
break;
_scsih_sas_ir_operation_status_event(ioc, fw_event);
break;
}
- _scsih_fw_event_free(ioc, fw_event);
+out:
+ fw_event_work_put(fw_event);
}
/**
}
sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
- fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC);
+ fw_event = alloc_fw_event_work(sz);
if (!fw_event) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
fw_event->VP_ID = mpi_reply->VP_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
+ fw_event_work_put(fw_event);
return;
}
}
}
+static struct _sas_device *get_next_sas_device(struct MPT2SAS_ADAPTER *ioc)
+{
+ struct _sas_device *sas_device = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+ if (!list_empty(&ioc->sas_device_init_list)) {
+ sas_device = list_first_entry(&ioc->sas_device_init_list,
+ struct _sas_device, list);
+ sas_device_get(sas_device);
+ }
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ return sas_device;
+}
+
+static void sas_device_make_active(struct MPT2SAS_ADAPTER *ioc,
+ struct _sas_device *sas_device)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ioc->sas_device_lock, flags);
+
+ /*
+ * Since we dropped the lock during the call to port_add(), we need to
+ * be careful here that somebody else didn't move or delete this item
+ * while we were busy with other things.
+ *
+ * If it was on the list, we need a put() for the reference the list
+ * had. Either way, we need a get() for the destination list.
+ */
+ if (!list_empty(&sas_device->list)) {
+ list_del_init(&sas_device->list);
+ sas_device_put(sas_device);
+ }
+
+ sas_device_get(sas_device);
+ list_add_tail(&sas_device->list, &ioc->sas_device_list);
+
+ spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
/**
* _scsih_probe_sas - reporting sas devices to sas transport
* @ioc: per adapter object
static void
_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
{
- struct _sas_device *sas_device, *next;
- unsigned long flags;
-
- /* SAS Device List */
- list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
- list) {
+ struct _sas_device *sas_device;
- if (ioc->hide_drives)
- continue;
+ if (ioc->hide_drives)
+ return;
+ while ((sas_device = get_next_sas_device(ioc))) {
if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
- sas_device->sas_address_parent)) {
- list_del(&sas_device->list);
- kfree(sas_device);
+ sas_device->sas_address_parent)) {
+ _scsih_sas_device_remove(ioc, sas_device);
+ sas_device_put(sas_device);
continue;
} else if (!sas_device->starget) {
if (!ioc->is_driver_loading) {
mpt2sas_transport_port_remove(ioc,
- sas_device->sas_address,
- sas_device->sas_address_parent);
- list_del(&sas_device->list);
- kfree(sas_device);
+ sas_device->sas_address,
+ sas_device->sas_address_parent);
+ _scsih_sas_device_remove(ioc, sas_device);
+ sas_device_put(sas_device);
continue;
}
}
- spin_lock_irqsave(&ioc->sas_device_lock, flags);
- list_move_tail(&sas_device->list, &ioc->sas_device_list);
- spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ sas_device_make_active(ioc, sas_device);
+ sas_device_put(sas_device);
}
}
int rc;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
if (sas_device) {
*identifier = sas_device->enclosure_logical_id;
rc = 0;
+ sas_device_put(sas_device);
} else {
*identifier = 0;
rc = -ENXIO;
}
+
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return rc;
}
int rc;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
- sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+ sas_device = __mpt2sas_get_sdev_by_addr(ioc,
rphy->identify.sas_address);
- if (sas_device)
+ if (sas_device) {
rc = sas_device->slot;
- else
+ sas_device_put(sas_device);
+ } else {
rc = -ENXIO;
+ }
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return rc;
}
* scatter/gather formats.
* Creation Date: June 21, 2006
*
- * mpi2.h Version: 02.00.31
+ * mpi2.h Version: 02.00.35
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* Added MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET.
* 04-09-13 02.00.30 Bumped MPI2_HEADER_VERSION_UNIT.
* 04-17-13 02.00.31 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 08-19-13 02.00.32 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 12-05-13 02.00.33 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 01-08-14 02.00.34 Bumped MPI2_HEADER_VERSION_UNIT
+ * 06-13-14 02.00.35 Bumped MPI2_HEADER_VERSION_UNIT.
* --------------------------------------------------------------------------
*/
#define MPI2_VERSION_02_05 (0x0205)
/*Unit and Dev versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT (0x1F)
+#define MPI2_HEADER_VERSION_UNIT (0x23)
#define MPI2_HEADER_VERSION_DEV (0x00)
#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
* Title: MPI Configuration messages and pages
* Creation Date: November 10, 2006
*
- * mpi2_cnfg.h Version: 02.00.26
+ * mpi2_cnfg.h Version: 02.00.29
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* match the specification.
* 08-19-13 02.00.26 Added reserved words to MPI2_CONFIG_PAGE_IO_UNIT_7 for
* future use.
+ * 12-05-13 02.00.27 Added MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL for
+ * MPI2_CONFIG_PAGE_MAN_7.
+ * Added EnclosureLevel and ConnectorName fields to
+ * MPI2_CONFIG_PAGE_SAS_DEV_0.
+ * Added MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID for
+ * MPI2_CONFIG_PAGE_SAS_DEV_0.
+ * Added EnclosureLevel field to
+ * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
+ * Added MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID for
+ * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
+ * 01-08-14 02.00.28 Added more defines for the BiosOptions field of
+ * MPI2_CONFIG_PAGE_BIOS_1.
+ * 06-13-14 02.00.29 Added SSUTimeout field to MPI2_CONFIG_PAGE_BIOS_1, and
+ * more defines for the BiosOptions field..
* --------------------------------------------------------------------------
*/
#define MPI2_MANUFACTURING7_PAGEVERSION (0x01)
/*defines for the Flags field */
+#define MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL (0x00000008)
#define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER (0x00000002)
#define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO (0x00000001)
MPI2_CONFIG_PAGE_HEADER Header; /*0x00 */
U32 BiosOptions; /*0x04 */
U32 IOCSettings; /*0x08 */
- U32 Reserved1; /*0x0C */
+ U8 SSUTimeout; /*0x0C */
+ U8 Reserved1; /*0x0D */
+ U16 Reserved2; /*0x0E */
U32 DeviceSettings; /*0x10 */
U16 NumberOfDevices; /*0x14 */
U16 UEFIVersion; /*0x16 */
*PTR_MPI2_CONFIG_PAGE_BIOS_1,
Mpi2BiosPage1_t, *pMpi2BiosPage1_t;
-#define MPI2_BIOSPAGE1_PAGEVERSION (0x05)
+#define MPI2_BIOSPAGE1_PAGEVERSION (0x07)
/*values for BIOS Page 1 BiosOptions field */
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_MASK (0x00003800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_PBDHL (0x00000000)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_ENCSLOSURE (0x00000800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_LWWID (0x00001000)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_PSENS (0x00001800)
+#define MPI2_BIOSPAGE1_OPTIONS_PNS_ESPHY (0x00002000)
+
+#define MPI2_BIOSPAGE1_OPTIONS_X86_DISABLE_BIOS (0x00000400)
+
+#define MPI2_BIOSPAGE1_OPTIONS_MASK_REGISTRATION_UEFI_BSD (0x00000300)
+#define MPI2_BIOSPAGE1_OPTIONS_USE_BIT0_REGISTRATION_UEFI_BSD (0x00000000)
+#define MPI2_BIOSPAGE1_OPTIONS_FULL_REGISTRATION_UEFI_BSD (0x00000100)
+#define MPI2_BIOSPAGE1_OPTIONS_ADAPTER_REGISTRATION_UEFI_BSD (0x00000200)
+#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_REGISTRATION_UEFI_BSD (0x00000300)
+
#define MPI2_BIOSPAGE1_OPTIONS_MASK_OEM_ID (0x000000F0)
#define MPI2_BIOSPAGE1_OPTIONS_LSI_OEM_ID (0x00000000)
U8
ControlGroup; /*0x2E */
U8
- Reserved1; /*0x2F */
+ EnclosureLevel; /*0x2F */
U32
- Reserved2; /*0x30 */
+ ConnectorName[4]; /*0x30 */
U32
Reserved3; /*0x34 */
} MPI2_CONFIG_PAGE_SAS_DEV_0,
Mpi2SasDevicePage0_t,
*pMpi2SasDevicePage0_t;
-#define MPI2_SASDEVICE0_PAGEVERSION (0x08)
+#define MPI2_SASDEVICE0_PAGEVERSION (0x09)
/*values for SAS Device Page 0 AccessStatus field */
#define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS (0x00)
#define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED (0x0020)
#define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED (0x0010)
#define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH (0x0008)
+#define MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID (0x0002)
#define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT (0x0001)
NumSlots; /*0x18 */
U16
StartSlot; /*0x1A */
- U16
+ U8
Reserved2; /*0x1C */
+ U8
+ EnclosureLevel; /*0x1D */
U16
SEPDevHandle; /*0x1E */
U32
*PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0,
Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t;
-#define MPI2_SASENCLOSURE0_PAGEVERSION (0x03)
+#define MPI2_SASENCLOSURE0_PAGEVERSION (0x04)
/*values for SAS Enclosure Page 0 Flags field */
+#define MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID (0x0010)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK (0x000F)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN (0x0000)
#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES (0x0001)
* Title: MPI IOC, Port, Event, FW Download, and FW Upload messages
* Creation Date: October 11, 2006
*
- * mpi2_ioc.h Version: 02.00.23
+ * mpi2_ioc.h Version: 02.00.24
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
* Added MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE.
* Added MPI2_FW_DOWNLOAD_ITYPE_PUBLIC_KEY.
* Added Encrypted Hash Extended Image.
+ * 12-05-13 02.00.24 Added MPI25_HASH_IMAGE_TYPE_BIOS.
* --------------------------------------------------------------------------
*/
/* values for HashImageType */
#define MPI25_HASH_IMAGE_TYPE_UNUSED (0x00)
#define MPI25_HASH_IMAGE_TYPE_FIRMWARE (0x01)
+#define MPI25_HASH_IMAGE_TYPE_BIOS (0x02)
/* values for HashAlgorithm */
#define MPI25_HASH_ALGORITHM_UNUSED (0x00)
* Title: MPI diagnostic tool structures and definitions
* Creation Date: March 26, 2007
*
- * mpi2_tool.h Version: 02.00.11
+ * mpi2_tool.h Version: 02.00.12
*
* Version History
* ---------------
* 07-26-12 02.00.10 Modified MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST so that
* it uses MPI Chain SGE as well as MPI Simple SGE.
* 08-19-13 02.00.11 Added MPI2_TOOLBOX_TEXT_DISPLAY_TOOL and related info.
+ * 01-08-14 02.00.12 Added MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC.
* --------------------------------------------------------------------------
*/
#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000)
#define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000)
#define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000)
+#define MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC (0x04000000)
#define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000)
#define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000)
#define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004)
module_param(msix_disable, int, 0);
MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
-static int max_msix_vectors = 8;
+static int max_msix_vectors = -1;
module_param(max_msix_vectors, int, 0);
MODULE_PARM_DESC(max_msix_vectors,
- " max msix vectors - (default=8)");
+ " max msix vectors");
static int mpt3sas_fwfault_debug;
MODULE_PARM_DESC(mpt3sas_fwfault_debug,
}
wmb();
- writel(reply_q->reply_post_host_index | (msix_index <<
- MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex);
+
+ /* Update Reply Post Host Index.
+ * For those HBA's which support combined reply queue feature
+ * 1. Get the correct Supplemental Reply Post Host Index Register.
+ * i.e. (msix_index / 8)th entry from Supplemental Reply Post Host
+ * Index Register address bank i.e replyPostRegisterIndex[],
+ * 2. Then update this register with new reply host index value
+ * in ReplyPostIndex field and the MSIxIndex field with
+ * msix_index value reduced to a value between 0 and 7,
+ * using a modulo 8 operation. Since each Supplemental Reply Post
+ * Host Index Register supports 8 MSI-X vectors.
+ *
+ * For other HBA's just update the Reply Post Host Index register with
+ * new reply host index value in ReplyPostIndex Field and msix_index
+ * value in MSIxIndex field.
+ */
+ if (ioc->msix96_vector)
+ writel(reply_q->reply_post_host_index | ((msix_index & 7) <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT),
+ ioc->replyPostRegisterIndex[msix_index/8]);
+ else
+ writel(reply_q->reply_post_host_index | (msix_index <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT),
+ &ioc->chip->ReplyPostHostIndex);
atomic_dec(&reply_q->busy);
return IRQ_HANDLED;
}
sg_scmd = scsi_sglist(scmd);
sges_left = scsi_dma_map(scmd);
- if (!sges_left) {
+ if (sges_left < 0) {
sdev_printk(KERN_ERR, scmd->device,
"pci_map_sg failed: request for %d bytes!\n",
scsi_bufflen(scmd));
fill_in_last_segment:
/* fill the last segment */
- while (sges_left) {
+ while (sges_left > 0) {
if (sges_left == 1)
_base_add_sg_single_ieee(sg_local,
simple_sgl_flags_last, 0, sg_dma_len(sg_scmd),
pci_read_config_word(ioc->pdev, base + 2, &message_control);
ioc->msix_vector_count = (message_control & 0x3FF) + 1;
- if (ioc->msix_vector_count > 8)
- ioc->msix_vector_count = 8;
dinitprintk(ioc, pr_info(MPT3SAS_FMT
"msix is supported, vector_count(%d)\n",
ioc->name, ioc->msix_vector_count));
}
/**
+ * mpt3sas_base_unmap_resources - free controller resources
+ * @ioc: per adapter object
+ */
+void
+mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
+{
+ struct pci_dev *pdev = ioc->pdev;
+
+ dexitprintk(ioc, printk(MPT3SAS_FMT "%s\n",
+ ioc->name, __func__));
+
+ _base_free_irq(ioc);
+ _base_disable_msix(ioc);
+
+ if (ioc->msix96_vector)
+ kfree(ioc->replyPostRegisterIndex);
+
+ if (ioc->chip_phys) {
+ iounmap(ioc->chip);
+ ioc->chip_phys = 0;
+ }
+
+ if (pci_is_enabled(pdev)) {
+ pci_release_selected_regions(ioc->pdev, ioc->bars);
+ pci_disable_pcie_error_reporting(pdev);
+ pci_disable_device(pdev);
+ }
+}
+
+/**
* mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
* @ioc: per adapter object
*
goto out_fail;
}
- for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
+ for (i = 0, memap_sz = 0, pio_sz = 0; (i < DEVICE_COUNT_RESOURCE) &&
+ (!memap_sz || !pio_sz); i++) {
if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
if (pio_sz)
continue;
chip_phys = (u64)ioc->chip_phys;
memap_sz = pci_resource_len(pdev, i);
ioc->chip = ioremap(ioc->chip_phys, memap_sz);
- if (ioc->chip == NULL) {
- pr_err(MPT3SAS_FMT "unable to map adapter memory!\n",
- ioc->name);
- r = -EINVAL;
- goto out_fail;
- }
}
}
+ if (ioc->chip == NULL) {
+ pr_err(MPT3SAS_FMT "unable to map adapter memory! "
+ " or resource not found\n", ioc->name);
+ r = -EINVAL;
+ goto out_fail;
+ }
+
_base_mask_interrupts(ioc);
r = _base_get_ioc_facts(ioc, CAN_SLEEP);
if (r)
goto out_fail;
+ /* Use the Combined reply queue feature only for SAS3 C0 & higher
+ * revision HBAs and also only when reply queue count is greater than 8
+ */
+ if (ioc->msix96_vector && ioc->reply_queue_count > 8) {
+ /* Determine the Supplemental Reply Post Host Index Registers
+ * Addresse. Supplemental Reply Post Host Index Registers
+ * starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and
+ * each register is at offset bytes of
+ * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET from previous one.
+ */
+ ioc->replyPostRegisterIndex = kcalloc(
+ MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT,
+ sizeof(resource_size_t *), GFP_KERNEL);
+ if (!ioc->replyPostRegisterIndex) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "allocation for reply Post Register Index failed!!!\n",
+ ioc->name));
+ r = -ENOMEM;
+ goto out_fail;
+ }
+
+ for (i = 0; i < MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT; i++) {
+ ioc->replyPostRegisterIndex[i] = (resource_size_t *)
+ ((u8 *)&ioc->chip->Doorbell +
+ MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET +
+ (i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET));
+ }
+ } else
+ ioc->msix96_vector = 0;
+
list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
return 0;
out_fail:
- if (ioc->chip_phys)
- iounmap(ioc->chip);
- ioc->chip_phys = 0;
- pci_release_selected_regions(ioc->pdev, ioc->bars);
- pci_disable_pcie_error_reporting(pdev);
- pci_disable_device(pdev);
+ mpt3sas_base_unmap_resources(ioc);
return r;
}
/**
+ * _base_display_dell_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc)
+{
+ if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
+ return;
+
+ switch (ioc->pdev->device) {
+ case MPI25_MFGPAGE_DEVID_SAS3008:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_DELL_12G_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_DELL_12G_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
+ ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
+ ioc->pdev->subsystem_device);
+ break;
+ }
+}
+
+/**
+ * _base_display_cisco_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_cisco_branding(struct MPT3SAS_ADAPTER *ioc)
+{
+ if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_CISCO)
+ return;
+
+ switch (ioc->pdev->device) {
+ case MPI25_MFGPAGE_DEVID_SAS3008:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_CISCO_12G_8E_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_8E_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_8I_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_8I_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ case MPI25_MFGPAGE_DEVID_SAS3108_1:
+ switch (ioc->pdev->subsystem_device) {
+ case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
+ break;
+ case MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID:
+ pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+ MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING);
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+ break;
+ default:
+ pr_info(MPT3SAS_FMT
+ "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
+ ioc->name, ioc->pdev->subsystem_device);
+ break;
+ }
+}
+
+/**
* _base_display_ioc_capabilities - Disply IOC's capabilities.
* @ioc: per adapter object
*
bios_version & 0x000000FF);
_base_display_intel_branding(ioc);
+ _base_display_dell_branding(ioc);
+ _base_display_cisco_branding(ioc);
pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
* Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
*/
static int
+_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
+
+static int
_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
int sleep_flag)
{
}
/**
+ * _base_wait_for_iocstate - Wait until the card is in READY or OPERATIONAL
+ * @ioc: per adapter object
+ * @timeout:
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout,
+ int sleep_flag)
+{
+ u32 ioc_state;
+ int rc;
+
+ dinitprintk(ioc, printk(MPT3SAS_FMT "%s\n", ioc->name,
+ __func__));
+
+ if (ioc->pci_error_recovery) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: host in pci error recovery\n", ioc->name, __func__));
+ return -EFAULT;
+ }
+
+ ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+ dhsprintk(ioc, printk(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
+ ioc->name, __func__, ioc_state));
+
+ if (((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) ||
+ (ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
+ return 0;
+
+ if (ioc_state & MPI2_DOORBELL_USED) {
+ dhsprintk(ioc, printk(MPT3SAS_FMT
+ "unexpected doorbell active!\n", ioc->name));
+ goto issue_diag_reset;
+ }
+
+ if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+ mpt3sas_base_fault_info(ioc, ioc_state &
+ MPI2_DOORBELL_DATA_MASK);
+ goto issue_diag_reset;
+ }
+
+ ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
+ timeout, sleep_flag);
+ if (ioc_state) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: failed going to ready state (ioc_state=0x%x)\n",
+ ioc->name, __func__, ioc_state));
+ return -EFAULT;
+ }
+
+ issue_diag_reset:
+ rc = _base_diag_reset(ioc, sleep_flag);
+ return rc;
+}
+
+/**
* _base_get_ioc_facts - obtain ioc facts reply and save in ioc
* @ioc: per adapter object
* @sleep_flag: CAN_SLEEP or NO_SLEEP
dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
+ r = _base_wait_for_iocstate(ioc, 10, sleep_flag);
+ if (r) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "%s: failed getting to correct state\n",
+ ioc->name, __func__));
+ return r;
+ }
mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
memset(&mpi_request, 0, mpi_request_sz);
mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
mpi_request.VF_ID = 0; /* TODO */
mpi_request.VP_ID = 0;
- mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
+ mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION);
mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
if (_base_is_controller_msix_enabled(ioc))
/* initialize reply post host index */
list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
- writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT,
- &ioc->chip->ReplyPostHostIndex);
+ if (ioc->msix96_vector)
+ writel((reply_q->msix_index & 7)<<
+ MPI2_RPHI_MSIX_INDEX_SHIFT,
+ ioc->replyPostRegisterIndex[reply_q->msix_index/8]);
+ else
+ writel(reply_q->msix_index <<
+ MPI2_RPHI_MSIX_INDEX_SHIFT,
+ &ioc->chip->ReplyPostHostIndex);
+
if (!_base_is_controller_msix_enabled(ioc))
goto skip_init_reply_post_host_index;
}
void
mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
{
- struct pci_dev *pdev = ioc->pdev;
-
dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
ioc->shost_recovery = 0;
}
- _base_free_irq(ioc);
- _base_disable_msix(ioc);
-
- if (ioc->chip_phys && ioc->chip)
- iounmap(ioc->chip);
- ioc->chip_phys = 0;
-
- if (pci_is_enabled(pdev)) {
- pci_release_selected_regions(ioc->pdev, ioc->bars);
- pci_disable_pcie_error_reporting(pdev);
- pci_disable_device(pdev);
- }
+ mpt3sas_base_unmap_resources(ioc);
return;
}
{
int r, i;
int cpu_id, last_cpu_id = 0;
+ u8 revision;
dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
__func__));
goto out_free_resources;
}
+ /* Check whether the controller revision is C0 or above.
+ * only C0 and above revision controllers support 96 MSI-X vectors.
+ */
+ revision = ioc->pdev->revision;
+
+ if ((ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3004 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3008 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_1 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_2 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_5 ||
+ ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_6) &&
+ (revision >= 0x02))
+ ioc->msix96_vector = 1;
+
ioc->rdpq_array_enable_assigned = 0;
ioc->dma_mask = 0;
r = mpt3sas_base_map_resources(ioc);
ioc->build_sg_scmd = &_base_build_sg_scmd_ieee;
ioc->build_sg = &_base_build_sg_ieee;
ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee;
- ioc->mpi25 = 1;
ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t);
/*
#define MPT3SAS_DRIVER_NAME "mpt3sas"
#define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
#define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver"
-#define MPT3SAS_DRIVER_VERSION "04.100.00.00"
-#define MPT3SAS_MAJOR_VERSION 4
+#define MPT3SAS_DRIVER_VERSION "09.100.00.00"
+#define MPT3SAS_MAJOR_VERSION 9
#define MPT3SAS_MINOR_VERSION 100
#define MPT3SAS_BUILD_VERSION 0
#define MPT3SAS_RELEASE_VERSION 00
#define MPT3SAS_INTEL_RS3UC080_SSDID 0x3524
/*
+ * Dell HBA branding
+ */
+#define MPT3SAS_DELL_12G_HBA_BRANDING \
+ "Dell 12Gbps HBA"
+
+/*
+ * Dell HBA SSDIDs
+ */
+#define MPT3SAS_DELL_12G_HBA_SSDID 0x1F46
+
+/*
+ * Cisco HBA branding
+ */
+#define MPT3SAS_CISCO_12G_8E_HBA_BRANDING \
+ "Cisco 9300-8E 12G SAS HBA"
+#define MPT3SAS_CISCO_12G_8I_HBA_BRANDING \
+ "Cisco 9300-8i 12G SAS HBA"
+#define MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING \
+ "Cisco 12G Modular SAS Pass through Controller"
+#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING \
+ "UCS C3X60 12G SAS Pass through Controller"
+/*
+ * Cisco HBA SSSDIDs
+ */
+#define MPT3SAS_CISCO_12G_8E_HBA_SSDID 0x14C
+#define MPT3SAS_CISCO_12G_8I_HBA_SSDID 0x154
+#define MPT3SAS_CISCO_12G_AVILA_HBA_SSDID 0x155
+#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID 0x156
+
+/*
* status bits for ioc->diag_buffer_status
*/
#define MPT3_DIAG_BUFFER_IS_REGISTERED (0x01)
#define MPT3_DIAG_BUFFER_IS_RELEASED (0x02)
#define MPT3_DIAG_BUFFER_IS_DIAG_RESET (0x04)
+/*
+ * Combined Reply Queue constants,
+ * There are twelve Supplemental Reply Post Host Index Registers
+ * and each register is at offset 0x10 bytes from the previous one.
+ */
+#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT 12
+#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET (0x10)
/* OEM Identifiers */
#define MFG10_OEM_ID_INVALID (0x00000000)
#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008)
#define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010)
+#define VIRTUAL_IO_FAILED_RETRY (0x32010081)
+
/* OEM Specific Flags will come from OEM specific header files */
struct Mpi2ManufacturingPage10_t {
MPI2_CONFIG_PAGE_HEADER Header; /* 00h */
* @responding: used in _scsih_sas_device_mark_responding
* @fast_path: fast path feature enable bit
* @pfa_led_on: flag for PFA LED status
- *
+ * @pend_sas_rphy_add: flag to check if device is in sas_rphy_add()
+ * addition routine.
*/
struct _sas_device {
struct list_head list;
u8 responding;
u8 fast_path;
u8 pfa_led_on;
+ u8 pend_sas_rphy_add;
+ u8 enclosure_level;
+ u8 connector_name[4];
};
/**
* is assigned only ones
* @reply_queue_count: number of reply queue's
* @reply_queue_list: link list contaning the reply queue info
- * @reply_post_host_index: head index in the pool where FW completes IO
+ * @msix96_vector: 96 MSI-X vector support
+ * @replyPostRegisterIndex: index of next position in Reply Desc Post Queue
* @delayed_tr_list: target reset link list
* @delayed_tr_volume_list: volume target reset link list
* @@temp_sensors_count: flag to carry the number of temperature sensors
MPT_BUILD_SG_SCMD build_sg_scmd;
MPT_BUILD_SG build_sg;
MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
- u8 mpi25;
u16 sge_size_ieee;
/* function ptr for MPI sg elements only */
u8 reply_queue_count;
struct list_head reply_queue_list;
+ u8 msix96_vector;
+ /* reply post register index */
+ resource_size_t **replyPostRegisterIndex;
+
struct list_head delayed_tr_list;
struct list_head delayed_tr_volume_list;
u8 temp_sensors_count;
if (!sas_device)
return;
+ pr_info(MPT3SAS_FMT
+ "removing handle(0x%04x), sas_addr(0x%016llx)\n",
+ ioc->name, sas_device->handle,
+ (unsigned long long) sas_device->sas_address);
+
+ if (sas_device->enclosure_handle != 0)
+ pr_info(MPT3SAS_FMT
+ "removing enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot);
+
+ if (sas_device->connector_name[0] != '\0')
+ pr_info(MPT3SAS_FMT
+ "removing enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, sas_device->enclosure_level,
+ sas_device->connector_name);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_del(&sas_device->list);
ioc->name, __func__, sas_device->handle,
(unsigned long long)sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure logical id(0x%016llx), slot( %d)\n",
+ ioc->name, __func__, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot));
+
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__,
+ sas_device->enclosure_level, sas_device->connector_name));
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
__func__, sas_device->handle,
(unsigned long long)sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure logical id(0x%016llx), slot( %d)\n",
+ ioc->name, __func__, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot));
+
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__, sas_device->enclosure_level,
+ sas_device->connector_name));
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
"sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
ds, handle, (unsigned long long)sas_device->sas_address,
sas_device->phy, (unsigned long long)sas_device->device_name);
- sdev_printk(KERN_INFO, sdev,
- "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
- ds, (unsigned long long)
- sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
+ ds, (unsigned long long)
+ sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure level(0x%04x), connector name( %s)\n",
+ ds, sas_device->enclosure_level,
+ sas_device->connector_name);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
sas_device->handle,
(unsigned long long)sas_device->sas_address,
sas_device->phy);
- starget_printk(KERN_INFO, starget,
- "enclosure_logical_id(0x%016llx), slot(%d)\n",
- (unsigned long long)sas_device->enclosure_logical_id,
- sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget,
+ "enclosure_logical_id(0x%016llx), slot(%d)\n",
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name)
+ starget_printk(KERN_INFO, starget,
+ "enclosure level(0x%04x),connector name(%s)\n",
+ sas_device->enclosure_level,
+ sas_device->connector_name);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
/**
+ * _scsih_internal_device_block - block the sdev device
+ * @sdev: per device object
+ * @sas_device_priv_data : per device driver private data
+ *
+ * make sure device is blocked without error, if not
+ * print an error
+ */
+static void
+_scsih_internal_device_block(struct scsi_device *sdev,
+ struct MPT3SAS_DEVICE *sas_device_priv_data)
+{
+ int r = 0;
+
+ sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle);
+ sas_device_priv_data->block = 1;
+
+ r = scsi_internal_device_block(sdev);
+ if (r == -EINVAL)
+ sdev_printk(KERN_WARNING, sdev,
+ "device_block failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+}
+
+/**
+ * _scsih_internal_device_unblock - unblock the sdev device
+ * @sdev: per device object
+ * @sas_device_priv_data : per device driver private data
+ * make sure device is unblocked without error, if not retry
+ * by blocking and then unblocking
+ */
+
+static void
+_scsih_internal_device_unblock(struct scsi_device *sdev,
+ struct MPT3SAS_DEVICE *sas_device_priv_data)
+{
+ int r = 0;
+
+ sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, "
+ "handle(0x%04x)\n", sas_device_priv_data->sas_target->handle);
+ sas_device_priv_data->block = 0;
+ r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ if (r == -EINVAL) {
+ /* The device has been set to SDEV_RUNNING by SD layer during
+ * device addition but the request queue is still stopped by
+ * our earlier block call. We need to perform a block again
+ * to get the device to SDEV_BLOCK and then to SDEV_RUNNING */
+
+ sdev_printk(KERN_WARNING, sdev,
+ "device_unblock failed with return(%d) for handle(0x%04x) "
+ "performing a block followed by an unblock\n",
+ sas_device_priv_data->sas_target->handle, r);
+ sas_device_priv_data->block = 1;
+ r = scsi_internal_device_block(sdev);
+ if (r)
+ sdev_printk(KERN_WARNING, sdev, "retried device_block "
+ "failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+
+ sas_device_priv_data->block = 0;
+ r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ if (r)
+ sdev_printk(KERN_WARNING, sdev, "retried device_unblock"
+ " failed with return(%d) for handle(0x%04x)\n",
+ sas_device_priv_data->sas_target->handle, r);
+ }
+}
+
+/**
* _scsih_ublock_io_all_device - unblock every device
* @ioc: per adapter object
*
if (!sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 0;
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
"device_running, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle));
- scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+ _scsih_internal_device_unblock(sdev, sas_device_priv_data);
}
}
if (sas_device_priv_data->sas_target->sas_address
!= sas_address)
continue;
- if (sas_device_priv_data->block) {
- sas_device_priv_data->block = 0;
- scsi_internal_device_unblock(sdev, SDEV_RUNNING);
- }
+ if (sas_device_priv_data->block)
+ _scsih_internal_device_unblock(sdev,
+ sas_device_priv_data);
}
}
continue;
if (sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 1;
- scsi_internal_device_block(sdev);
- sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
- sas_device_priv_data->sas_target->handle);
+ _scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
+ struct _sas_device *sas_device;
+
+ sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+ if (!sas_device)
+ return;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
continue;
if (sas_device_priv_data->block)
continue;
- sas_device_priv_data->block = 1;
- scsi_internal_device_block(sdev);
- sdev_printk(KERN_INFO, sdev,
- "device_blocked, handle(0x%04x)\n", handle);
+ if (sas_device->pend_sas_rphy_add)
+ continue;
+ _scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
"setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, handle,
(unsigned long long)sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "setting delete flag:enclosure logical id(0x%016llx),"
+ " slot(%d)\n", ioc->name, (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "setting delete flag: enclosure level(0x%04x),"
+ " connector name( %s)\n", ioc->name,
+ sas_device->enclosure_level,
+ sas_device->connector_name));
_scsih_ublock_io_device(ioc, sas_address);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
"\tsas_address(0x%016llx), phy(%d)\n",
ioc->name, (unsigned long long)
sas_device->sas_address, sas_device->phy);
- pr_warn(MPT3SAS_FMT
- "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
- ioc->name, (unsigned long long)
- sas_device->enclosure_logical_id, sas_device->slot);
+ if (sas_device->enclosure_handle != 0)
+ pr_warn(MPT3SAS_FMT
+ "\tenclosure_logical_id(0x%016llx),"
+ "slot(%d)\n", ioc->name,
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0])
+ pr_warn(MPT3SAS_FMT
+ "\tenclosure level(0x%04x),"
+ " connector name( %s)\n", ioc->name,
+ sas_device->enclosure_level,
+ sas_device->connector_name);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return;
}
- starget_printk(KERN_WARNING, starget, "predicted fault\n");
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget, "predicted fault, "
+ "enclosure logical id(0x%016llx), slot(%d)\n",
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ starget_printk(KERN_WARNING, starget, "predicted fault, "
+ "enclosure level(0x%04x), connector name( %s)\n",
+ sas_device->enclosure_level,
+ sas_device->connector_name);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
- }
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+ if (!(ioc->logging_level & MPT_DEBUG_REPLY) &&
+ ((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
+ (scmd->sense_buffer[2] == MEDIUM_ERROR) ||
+ (scmd->sense_buffer[2] == HARDWARE_ERROR)))
+ _scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
+#endif
+ }
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->device->expecting_cc_ua = 1;
}
break;
+ } else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
+ scmd->result = DID_RESET << 16;
+ break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;
sas_device->handle, handle);
sas_target_priv_data->handle = handle;
sas_device->handle = handle;
+ if (sas_device_pg0.Flags &
+ MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
+ sas_device->enclosure_level =
+ le16_to_cpu(sas_device_pg0.EnclosureLevel);
+ memcpy(&sas_device->connector_name[0],
+ &sas_device_pg0.ConnectorName[0], 4);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
}
/* check if device is present */
ioc->name, __FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
- sas_device->slot =
- le16_to_cpu(sas_device_pg0.Slot);
+ if (sas_device->enclosure_handle != 0)
+ sas_device->slot =
+ le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->phy = sas_device_pg0.PhyNum;
sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
+ if (sas_device_pg0.Flags & MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
+ sas_device->enclosure_level =
+ le16_to_cpu(sas_device_pg0.EnclosureLevel);
+ memcpy(&sas_device->connector_name[0],
+ &sas_device_pg0.ConnectorName[0], 4);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
/* get enclosure_logical_id */
if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->name, __func__,
sas_device->handle, (unsigned long long)
sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, __func__,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: enter: enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, __func__,
+ sas_device->enclosure_level,
+ sas_device->connector_name));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
"removing handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, sas_device->handle,
(unsigned long long) sas_device->sas_address);
+ if (sas_device->enclosure_handle != 0)
+ pr_info(MPT3SAS_FMT
+ "removing : enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot);
+ if (sas_device->connector_name[0] != '\0')
+ pr_info(MPT3SAS_FMT
+ "removing enclosure level(0x%04x), connector name( %s)\n",
+ ioc->name, sas_device->enclosure_level,
+ sas_device->connector_name);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
ioc->name, __func__,
- sas_device->handle, (unsigned long long)
- sas_device->sas_address));
+ sas_device->handle, (unsigned long long)
+ sas_device->sas_address));
+ if (sas_device->enclosure_handle != 0)
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
+ ioc->name, __func__,
+ (unsigned long long)sas_device->enclosure_logical_id,
+ sas_device->slot));
+ if (sas_device->connector_name[0] != '\0')
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: exit: enclosure level(0x%04x), connector name(%s)\n",
+ ioc->name, __func__, sas_device->enclosure_level,
+ sas_device->connector_name));
kfree(sas_device);
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
- * @sas_address: sas address
- * @slot: enclosure slot id
- * @handle: device handle
+ * @sas_device_pg0: SAS Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_sas_devices.
* Return nothing.
*/
static void
-_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
- u16 slot, u16 handle)
+_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
+Mpi2SasDevicePage0_t *sas_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
- if (sas_device->sas_address == sas_address &&
- sas_device->slot == slot) {
+ if ((sas_device->sas_address == sas_device_pg0->SASAddress) &&
+ (sas_device->slot == sas_device_pg0->Slot)) {
sas_device->responding = 1;
starget = sas_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
- if (starget)
+ if (starget) {
starget_printk(KERN_INFO, starget,
- "handle(0x%04x), sas_addr(0x%016llx), "
- "enclosure logical id(0x%016llx), "
- "slot(%d)\n", handle,
- (unsigned long long)sas_device->sas_address,
+ "handle(0x%04x), sas_addr(0x%016llx)\n",
+ sas_device_pg0->DevHandle,
(unsigned long long)
- sas_device->enclosure_logical_id,
- sas_device->slot);
- if (sas_device->handle == handle)
+ sas_device->sas_address);
+
+ if (sas_device->enclosure_handle != 0)
+ starget_printk(KERN_INFO, starget,
+ "enclosure logical id(0x%016llx),"
+ " slot(%d)\n",
+ (unsigned long long)
+ sas_device->enclosure_logical_id,
+ sas_device->slot);
+ }
+ if (sas_device_pg0->Flags &
+ MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
+ sas_device->enclosure_level =
+ le16_to_cpu(sas_device_pg0->EnclosureLevel);
+ memcpy(&sas_device->connector_name[0],
+ &sas_device_pg0->ConnectorName[0], 4);
+ } else {
+ sas_device->enclosure_level = 0;
+ sas_device->connector_name[0] = '\0';
+ }
+
+ if (sas_device->handle == sas_device_pg0->DevHandle)
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
- sas_device->handle = handle;
+ sas_device->handle = sas_device_pg0->DevHandle;
if (sas_target_priv_data)
- sas_target_priv_data->handle = handle;
+ sas_target_priv_data->handle =
+ sas_device_pg0->DevHandle;
goto out;
}
}
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
- handle = le16_to_cpu(sas_device_pg0.DevHandle);
+ handle = sas_device_pg0.DevHandle =
+ le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
- _scsih_mark_responding_sas_device(ioc,
- le64_to_cpu(sas_device_pg0.SASAddress),
- le16_to_cpu(sas_device_pg0.Slot), handle);
+ sas_device_pg0.SASAddress =
+ le64_to_cpu(sas_device_pg0.SASAddress);
+ sas_device_pg0.Slot = le16_to_cpu(sas_device_pg0.Slot);
+ _scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
}
out:
/* event thread */
snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
"fw_event%d", ioc->id);
- ioc->firmware_event_thread = create_singlethread_workqueue(
- ioc->firmware_event_name);
+ ioc->firmware_event_thread = alloc_ordered_workqueue(
+ ioc->firmware_event_name, WQ_MEM_RECLAIM);
if (!ioc->firmware_event_thread) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
unsigned long flags;
struct _sas_node *sas_node;
struct sas_rphy *rphy;
+ struct _sas_device *sas_device = NULL;
int i;
struct sas_port *port;
mpt3sas_port->remote_identify.device_type);
rphy->identify = mpt3sas_port->remote_identify;
+
+ if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+ sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+ mpt3sas_port->remote_identify.sas_address);
+ if (!sas_device) {
+ dfailprintk(ioc, printk(MPT3SAS_FMT
+ "failure at %s:%d/%s()!\n",
+ ioc->name, __FILE__, __LINE__, __func__));
+ goto out_fail;
+ }
+ sas_device->pend_sas_rphy_add = 1;
+ }
+
if ((sas_rphy_add(rphy))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
+
+ if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE)
+ sas_device->pend_sas_rphy_add = 0;
+
if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
dev_printk(KERN_INFO, &rphy->dev,
"add: handle(0x%04x), sas_addr(0x%016llx)\n",
} else {
dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_out) {
+ if (pci_dma_mapping_error(ioc->pdev, dma_addr_out)) {
pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n",
ioc->name, __func__);
rc = -ENOMEM;
} else {
dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_in) {
+ if (pci_dma_mapping_error(ioc->pdev, dma_addr_in)) {
pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n",
ioc->name, __func__);
rc = -ENOMEM;
res_start = pci_resource_start(pdev, bar);
res_len = pci_resource_len(pdev, bar);
- if (!res_start || !res_len)
+ if (!res_start || !res_len) {
+ iounmap(mvi->regs_ex);
+ mvi->regs_ex = NULL;
goto err_out;
+ }
res_flag = pci_resource_flags(pdev, bar);
if (res_flag & IORESOURCE_CACHEABLE)
chip_8019,
chip_8074,
chip_8076,
- chip_8077
+ chip_8077,
+ chip_8006,
};
enum phy_speed {
PHY_SPEED_15 = 0x01,
PHY_SPEED_30 = 0x02,
PHY_SPEED_60 = 0x04,
+ PHY_SPEED_120 = 0x08,
};
enum data_direction {
struct sas_phy *sas_phy = phy->sas_phy.phy;
switch (link_rate) {
+ case PHY_SPEED_120:
+ phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
+ phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
+ break;
case PHY_SPEED_60:
phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
[chip_8074] = {0, 8, &pm8001_80xx_dispatch,},
[chip_8076] = {0, 16, &pm8001_80xx_dispatch,},
[chip_8077] = {0, 16, &pm8001_80xx_dispatch,},
+ [chip_8006] = {0, 16, &pm8001_80xx_dispatch,},
};
static int pm8001_id;
*/
static struct pci_device_id pm8001_pci_table[] = {
{ PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 },
+ { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 },
+ { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 },
{ PCI_VDEVICE(ATTO, 0x0042), chip_8001 },
/* Support for SPC/SPCv/SPCve controllers */
{ PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 },
MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>");
MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>");
MODULE_DESCRIPTION(
- "PMC-Sierra PM8001/8081/8088/8089/8074/8076/8077 "
+ "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077 "
"SAS/SATA controller driver");
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
ccb->device = pm8001_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
+ ccb->n_elem = 0;
res = PM8001_CHIP_DISP->task_abort(pm8001_ha,
pm8001_dev, flag, task_tag, ccb_tag);
phy = sas_get_local_phy(dev);
if (dev_is_sata(dev)) {
- DECLARE_COMPLETION_ONSTACK(completion_setstate);
if (scsi_is_sas_phy_local(phy)) {
rc = 0;
goto out;
}
rc = sas_phy_reset(phy, 1);
+ if (rc) {
+ PM8001_EH_DBG(pm8001_ha,
+ pm8001_printk("phy reset failed for device %x\n"
+ "with rc %d\n", pm8001_dev->device_id, rc));
+ rc = TMF_RESP_FUNC_FAILED;
+ goto out;
+ }
msleep(2000);
rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
dev, 1, 0);
- pm8001_dev->setds_completion = &completion_setstate;
- rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
- pm8001_dev, 0x01);
- wait_for_completion(&completion_setstate);
+ if (rc) {
+ PM8001_EH_DBG(pm8001_ha,
+ pm8001_printk("task abort failed %x\n"
+ "with rc %d\n", pm8001_dev->device_id, rc));
+ rc = TMF_RESP_FUNC_FAILED;
+ }
} else {
rc = sas_phy_reset(phy, 1);
msleep(2000);
#include "pm8001_defs.h"
#define DRV_NAME "pm80xx"
-#define DRV_VERSION "0.1.37"
+#define DRV_VERSION "0.1.38"
#define PM8001_FAIL_LOGGING 0x01 /* Error message logging */
#define PM8001_INIT_LOGGING 0x02 /* driver init logging */
#define PM8001_DISC_LOGGING 0x04 /* discovery layer logging */
struct pm8001_port {
struct asd_sas_port sas_port;
u8 port_attached;
- u8 wide_port_phymap;
+ u16 wide_port_phymap;
u8 port_state;
struct list_head list;
};
#define NCQ_READ_LOG_FLAG 0x80000000
#define NCQ_ABORT_ALL_FLAG 0x40000000
#define NCQ_2ND_RLE_FLAG 0x20000000
+
+/* Device states */
+#define DS_OPERATIONAL 0x01
+#define DS_PORT_IN_RESET 0x02
+#define DS_IN_RECOVERY 0x03
+#define DS_IN_ERROR 0x04
+#define DS_NON_OPERATIONAL 0x07
+
/**
* brief param structure for firmware flash update.
*/
pm8001_mr32(address, MAIN_INT_VECTOR_TABLE_OFFSET);
pm8001_ha->main_cfg_tbl.pm80xx_tbl.phy_attr_table_offset =
pm8001_mr32(address, MAIN_SAS_PHY_ATTR_TABLE_OFFSET);
+ /* read port recover and reset timeout */
+ pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer =
+ pm8001_mr32(address, MAIN_PORT_RECOVERY_TIMER);
}
/**
pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer);
pm8001_mw32(address, MAIN_INT_REASSERTION_DELAY,
pm8001_ha->main_cfg_tbl.pm80xx_tbl.interrupt_reassertion_delay);
+
+ pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer &= 0xffff0000;
+ pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer |=
+ PORT_RECOVERY_TIMEOUT;
+ pm8001_mw32(address, MAIN_PORT_RECOVERY_TIMER,
+ pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer);
}
/**
int rc;
u32 tag;
u32 opc = OPC_INB_SET_CONTROLLER_CONFIG;
+ u32 page_code;
memset(&payload, 0, sizeof(struct set_ctrl_cfg_req));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
circularQ = &pm8001_ha->inbnd_q_tbl[0];
payload.tag = cpu_to_le32(tag);
+
+ if (IS_SPCV_12G(pm8001_ha->pdev))
+ page_code = THERMAL_PAGE_CODE_7H;
+ else
+ page_code = THERMAL_PAGE_CODE_8H;
+
payload.cfg_pg[0] = (THERMAL_LOG_ENABLE << 9) |
- (THERMAL_ENABLE << 8) | THERMAL_OP_CODE;
+ (THERMAL_ENABLE << 8) | page_code;
payload.cfg_pg[1] = (LTEMPHIL << 24) | (RTEMPHIL << 8);
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
ts->stat = SAS_OPEN_REJECT;
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
break;
+ case IO_XFER_ERROR_INVALID_SSP_RSP_FRAME:
+ PM8001_IO_DBG(pm8001_ha,
+ pm8001_printk("IO_XFER_ERROR_INVALID_SSP_RSP_FRAME\n"));
+ ts->resp = SAS_TASK_COMPLETE;
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
+ break;
case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n"));
static int pm80xx_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
u32 phyId, u32 phy_op);
+static void hw_event_port_recover(struct pm8001_hba_info *pm8001_ha,
+ void *piomb)
+{
+ struct hw_event_resp *pPayload = (struct hw_event_resp *)(piomb + 4);
+ u32 phyid_npip_portstate = le32_to_cpu(pPayload->phyid_npip_portstate);
+ u8 phy_id = (u8)((phyid_npip_portstate & 0xFF0000) >> 16);
+ u32 lr_status_evt_portid =
+ le32_to_cpu(pPayload->lr_status_evt_portid);
+ u8 deviceType = pPayload->sas_identify.dev_type;
+ u8 link_rate = (u8)((lr_status_evt_portid & 0xF0000000) >> 28);
+ struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
+ u8 port_id = (u8)(lr_status_evt_portid & 0x000000FF);
+ struct pm8001_port *port = &pm8001_ha->port[port_id];
+
+ if (deviceType == SAS_END_DEVICE) {
+ pm80xx_chip_phy_ctl_req(pm8001_ha, phy_id,
+ PHY_NOTIFY_ENABLE_SPINUP);
+ }
+
+ port->wide_port_phymap |= (1U << phy_id);
+ pm8001_get_lrate_mode(phy, link_rate);
+ phy->sas_phy.oob_mode = SAS_OOB_MODE;
+ phy->phy_state = PHY_STATE_LINK_UP_SPCV;
+ phy->phy_attached = 1;
+}
+
/**
* hw_event_sas_phy_up -FW tells me a SAS phy up event.
* @pm8001_ha: our hba card information
unsigned long flags;
u8 deviceType = pPayload->sas_identify.dev_type;
port->port_state = portstate;
+ port->wide_port_phymap |= (1U << phy_id);
phy->phy_state = PHY_STATE_LINK_UP_SPCV;
PM8001_MSG_DBG(pm8001_ha, pm8001_printk(
"portid:%d; phyid:%d; linkrate:%d; "
struct pm8001_port *port = &pm8001_ha->port[port_id];
struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
port->port_state = portstate;
- phy->phy_type = 0;
phy->identify.device_type = 0;
phy->phy_attached = 0;
memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
pm8001_printk(" PortInvalid portID %d\n", port_id));
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk(" Last phy Down and port invalid\n"));
- port->port_attached = 0;
- pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
- port_id, phy_id, 0, 0);
+ if (phy->phy_type & PORT_TYPE_SATA) {
+ phy->phy_type = 0;
+ port->port_attached = 0;
+ pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
+ port_id, phy_id, 0, 0);
+ }
+ sas_phy_disconnected(&phy->sas_phy);
break;
case PORT_IN_RESET:
PM8001_MSG_DBG(pm8001_ha,
break;
case PORT_NOT_ESTABLISHED:
PM8001_MSG_DBG(pm8001_ha,
- pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n"));
+ pm8001_printk(" Phy Down and PORT_NOT_ESTABLISHED\n"));
port->port_attached = 0;
break;
case PORT_LOSTCOMM:
PM8001_MSG_DBG(pm8001_ha,
- pm8001_printk(" phy Down and PORT_LOSTCOMM\n"));
+ pm8001_printk(" Phy Down and PORT_LOSTCOMM\n"));
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk(" Last phy Down and port invalid\n"));
- port->port_attached = 0;
- pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
- port_id, phy_id, 0, 0);
+ if (phy->phy_type & PORT_TYPE_SATA) {
+ port->port_attached = 0;
+ phy->phy_type = 0;
+ pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
+ port_id, phy_id, 0, 0);
+ }
+ sas_phy_disconnected(&phy->sas_phy);
break;
default:
port->port_attached = 0;
PM8001_MSG_DBG(pm8001_ha,
- pm8001_printk(" phy Down and(default) = 0x%x\n",
+ pm8001_printk(" Phy Down and(default) = 0x%x\n",
portstate));
break;
*/
static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
- unsigned long flags;
+ unsigned long flags, i;
struct hw_event_resp *pPayload =
(struct hw_event_resp *)(piomb + 4);
u32 lr_status_evt_portid =
(u16)((lr_status_evt_portid & 0x00FFFF00) >> 8);
u8 status =
(u8)((lr_status_evt_portid & 0x0F000000) >> 24);
-
struct sas_ha_struct *sas_ha = pm8001_ha->sas;
struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
+ struct pm8001_port *port = &pm8001_ha->port[port_id];
struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("portid:%d phyid:%d event:0x%x status:0x%x\n",
case HW_EVENT_PHY_DOWN:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PHY_DOWN\n"));
- sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
+ if (phy->phy_type & PORT_TYPE_SATA)
+ sas_ha->notify_phy_event(&phy->sas_phy,
+ PHYE_LOSS_OF_SIGNAL);
phy->phy_attached = 0;
phy->phy_state = 0;
hw_event_phy_down(pm8001_ha, piomb);
pm8001_printk("HW_EVENT_LINK_ERR_INVALID_DWORD\n"));
pm80xx_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
- sas_phy_disconnected(sas_phy);
- phy->phy_attached = 0;
- sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
PM8001_MSG_DBG(pm8001_ha,
pm80xx_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_LINK_ERR_DISPARITY_ERROR,
port_id, phy_id, 0, 0);
- sas_phy_disconnected(sas_phy);
- phy->phy_attached = 0;
- sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_LINK_ERR_CODE_VIOLATION:
PM8001_MSG_DBG(pm8001_ha,
pm80xx_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_LINK_ERR_CODE_VIOLATION,
port_id, phy_id, 0, 0);
- sas_phy_disconnected(sas_phy);
- phy->phy_attached = 0;
- sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
PM8001_MSG_DBG(pm8001_ha, pm8001_printk(
pm80xx_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
port_id, phy_id, 0, 0);
- sas_phy_disconnected(sas_phy);
- phy->phy_attached = 0;
- sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_MALFUNCTION:
PM8001_MSG_DBG(pm8001_ha,
pm80xx_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_PORT_RECOVERY_TIMER_TMO,
port_id, phy_id, 0, 0);
- sas_phy_disconnected(sas_phy);
- phy->phy_attached = 0;
- sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
+ for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
+ if (port->wide_port_phymap & (1 << i)) {
+ phy = &pm8001_ha->phy[i];
+ sas_ha->notify_phy_event(&phy->sas_phy,
+ PHYE_LOSS_OF_SIGNAL);
+ port->wide_port_phymap &= ~(1 << i);
+ }
+ }
break;
case HW_EVENT_PORT_RECOVER:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PORT_RECOVER\n"));
+ hw_event_port_recover(pm8001_ha, piomb);
break;
case HW_EVENT_PORT_RESET_COMPLETE:
PM8001_MSG_DBG(pm8001_ha,
/* Thermal related */
#define THERMAL_ENABLE 0x1
#define THERMAL_LOG_ENABLE 0x1
-#define THERMAL_OP_CODE 0x6
+#define THERMAL_PAGE_CODE_7H 0x6
+#define THERMAL_PAGE_CODE_8H 0x7
#define LTEMPHIL 70
#define RTEMPHIL 100
#define IO_XFER_ERROR_INTERNAL_CRC_ERROR 0x54
#define MPI_IO_RQE_BUSY_FULL 0x55
#define IO_XFER_ERR_EOB_DATA_OVERRUN 0x56
-#define IO_XFR_ERROR_INVALID_SSP_RSP_FRAME 0x57
+#define IO_XFER_ERROR_INVALID_SSP_RSP_FRAME 0x57
#define IO_OPEN_CNX_ERROR_OPEN_PREEMPTED 0x58
#define MPI_ERR_IO_RESOURCE_UNAVAILABLE 0x1004
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int rval;
- uint16_t actual_size;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count > DCBX_TLV_DATA_SIZE)
return 0;
}
do_read:
- actual_size = 0;
memset(ha->dcbx_tlv, 0, DCBX_TLV_DATA_SIZE);
rval = qla2x00_get_dcbx_params(vha, ha->dcbx_tlv_dma,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
- return scnprintf(buf, PAGE_SIZE, "%s\n",
- vha->hw->model_desc ? vha->hw->model_desc : "");
+ return scnprintf(buf, PAGE_SIZE, "%s\n", vha->hw->model_desc);
}
static ssize_t
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
- if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
+ if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha) &&
+ !IS_QLA27XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n",
return strlen(buf);
}
+static ssize_t
+qla2x00_pep_version_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!IS_QLA27XX(ha))
+ return scnprintf(buf, PAGE_SIZE, "\n");
+
+ return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n",
+ ha->pep_version[0], ha->pep_version[1], ha->pep_version[2]);
+}
+
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR,
qla2x00_allow_cna_fw_dump_show,
qla2x00_allow_cna_fw_dump_store);
+static DEVICE_ATTR(pep_version, S_IRUGO, qla2x00_pep_version_show, NULL);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
&dev_attr_diag_megabytes,
&dev_attr_fw_dump_size,
&dev_attr_allow_cna_fw_dump,
+ &dev_attr_pep_version,
NULL,
};
return rval;
}
-inline uint16_t
+static inline uint16_t
qla24xx_calc_ct_iocbs(uint16_t dsds)
{
uint16_t iocbs;
struct Scsi_Host *host = bsg_job->shost;
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
- uint16_t thread_id;
uint32_t rval = EXT_STATUS_OK;
uint16_t req_sg_cnt = 0;
uint16_t rsp_sg_cnt = 0;
goto done;
}
- thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
-
mutex_lock(&ha->selflogin_lock);
if (vha->self_login_loop_id == 0) {
/* Initialize all required fields of fcport */
{
int ret = -EINVAL;
struct fc_rport *rport;
- fc_port_t *fcport = NULL;
struct Scsi_Host *host;
scsi_qla_host_t *vha;
if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
rport = bsg_job->rport;
- fcport = *(fc_port_t **) rport->dd_data;
host = rport_to_shost(rport);
vha = shost_priv(host);
} else {
* | Device Discovery | 0x2016 | 0x2020-0x2022, |
* | | | 0x2011-0x2012, |
* | | | 0x2099-0x20a4 |
- * | Queue Command and IO tracing | 0x3059 | 0x300b |
+ * | Queue Command and IO tracing | 0x3075 | 0x300b |
* | | | 0x3027-0x3028 |
* | | | 0x303d-0x3041 |
* | | | 0x302d,0x3033 |
* | | | 0x3036,0x3038 |
* | | | 0x303a |
* | DPC Thread | 0x4023 | 0x4002,0x4013 |
- * | Async Events | 0x5087 | 0x502b-0x502f |
+ * | Async Events | 0x508a | 0x502b-0x502f |
* | | | 0x5047 |
* | | | 0x5084,0x5075 |
* | | | 0x503d,0x5044 |
{
int rval;
uint32_t cnt, stat, timer, dwords, idx;
- uint16_t mb0, mb1;
+ uint16_t mb0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
dma_addr_t dump_dma = ha->gid_list_dma;
uint32_t *dump = (uint32_t *)ha->gid_list;
&ha->mbx_cmd_flags);
mb0 = RD_REG_WORD(®->mailbox0);
- mb1 = RD_REG_WORD(®->mailbox1);
+ RD_REG_WORD(®->mailbox1);
WRT_REG_DWORD(®->hccr,
HCCRX_CLR_RISC_INT);
return ptr;
*last_chain = &fcec->type;
- fcec->type = __constant_htonl(DUMP_CHAIN_FCE);
+ fcec->type = htonl(DUMP_CHAIN_FCE);
fcec->chain_size = htonl(sizeof(struct qla2xxx_fce_chain) +
fce_calc_size(ha->fce_bufs));
fcec->size = htonl(fce_calc_size(ha->fce_bufs));
/* aqp = ha->atio_q_map[que]; */
q = ptr;
*last_chain = &q->type;
- q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
/* Add header. */
qh = ptr;
- qh->queue = __constant_htonl(TYPE_ATIO_QUEUE);
+ qh->queue = htonl(TYPE_ATIO_QUEUE);
qh->number = htonl(que);
qh->size = htonl(aqp->length * sizeof(request_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
/* Add chain. */
q = ptr;
*last_chain = &q->type;
- q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
/* Add header. */
qh = ptr;
- qh->queue = __constant_htonl(TYPE_REQUEST_QUEUE);
+ qh->queue = htonl(TYPE_REQUEST_QUEUE);
qh->number = htonl(que);
qh->size = htonl(req->length * sizeof(request_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
/* Add chain. */
q = ptr;
*last_chain = &q->type;
- q->type = __constant_htonl(DUMP_CHAIN_QUEUE);
+ q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
/* Add header. */
qh = ptr;
- qh->queue = __constant_htonl(TYPE_RESPONSE_QUEUE);
+ qh->queue = htonl(TYPE_RESPONSE_QUEUE);
qh->number = htonl(que);
qh->size = htonl(rsp->length * sizeof(response_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
uint32_t cnt, que_idx;
uint8_t que_cnt;
struct qla2xxx_mq_chain *mq = ptr;
- device_reg_t __iomem *reg;
+ device_reg_t *reg;
if (!ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha))
return ptr;
mq = ptr;
*last_chain = &mq->type;
- mq->type = __constant_htonl(DUMP_CHAIN_MQ);
- mq->chain_size = __constant_htonl(sizeof(struct qla2xxx_mq_chain));
+ mq->type = htonl(DUMP_CHAIN_MQ);
+ mq->chain_size = htonl(sizeof(struct qla2xxx_mq_chain));
que_cnt = ha->max_req_queues > ha->max_rsp_queues ?
ha->max_req_queues : ha->max_rsp_queues;
flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd002,
qla2xxx_dump_post_process(base_vha, rval);
qla2300_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
/**
mb0 = mb2 = 0;
flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd004,
qla2xxx_dump_post_process(base_vha, rval);
qla2100_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
void
{
int rval;
uint32_t cnt;
- uint32_t risc_address;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t __iomem *dmp_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla24xx_fw_dump *fw;
- uint32_t ext_mem_cnt;
void *nxt;
void *nxt_chain;
uint32_t *last_chain = NULL;
if (IS_P3P_TYPE(ha))
return;
- risc_address = ext_mem_cnt = 0;
flags = 0;
ha->fw_dump_cap_flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd006,
nxt_chain = (void *)ha->fw_dump + ha->chain_offset;
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
- ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
- *last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
+ ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
+ *last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
qla2xxx_dump_post_process(base_vha, rval);
qla24xx_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
void
{
int rval;
uint32_t cnt;
- uint32_t risc_address;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t __iomem *dmp_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla25xx_fw_dump *fw;
- uint32_t ext_mem_cnt;
void *nxt, *nxt_chain;
uint32_t *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
- risc_address = ext_mem_cnt = 0;
flags = 0;
ha->fw_dump_cap_flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd008,
}
fw = &ha->fw_dump->isp.isp25;
qla2xxx_prep_dump(ha, ha->fw_dump);
- ha->fw_dump->version = __constant_htonl(2);
+ ha->fw_dump->version = htonl(2);
fw->host_status = htonl(RD_REG_DWORD(®->host_status));
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
- ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
- *last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
+ ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
+ *last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
qla2xxx_dump_post_process(base_vha, rval);
qla25xx_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
void
{
int rval;
uint32_t cnt;
- uint32_t risc_address;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t __iomem *dmp_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla81xx_fw_dump *fw;
- uint32_t ext_mem_cnt;
void *nxt, *nxt_chain;
uint32_t *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
- risc_address = ext_mem_cnt = 0;
flags = 0;
ha->fw_dump_cap_flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd00a,
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
- ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
- *last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
+ ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
+ *last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
qla2xxx_dump_post_process(base_vha, rval);
qla81xx_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
void
qla83xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
{
int rval;
- uint32_t cnt, reg_data;
- uint32_t risc_address;
+ uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t __iomem *dmp_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla83xx_fw_dump *fw;
- uint32_t ext_mem_cnt;
void *nxt, *nxt_chain;
uint32_t *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
- risc_address = ext_mem_cnt = 0;
flags = 0;
ha->fw_dump_cap_flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd00c,
WRT_REG_DWORD(®->iobase_addr, 0x6000);
dmp_reg = ®->iobase_window;
- reg_data = RD_REG_DWORD(dmp_reg);
+ RD_REG_DWORD(dmp_reg);
WRT_REG_DWORD(dmp_reg, 0);
dmp_reg = ®->unused_4_1[0];
- reg_data = RD_REG_DWORD(dmp_reg);
+ RD_REG_DWORD(dmp_reg);
WRT_REG_DWORD(dmp_reg, 0);
WRT_REG_DWORD(®->iobase_addr, 0x6010);
dmp_reg = ®->unused_4_1[2];
- reg_data = RD_REG_DWORD(dmp_reg);
+ RD_REG_DWORD(dmp_reg);
WRT_REG_DWORD(dmp_reg, 0);
/* select PCR and disable ecc checking and correction */
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
- ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
- *last_chain |= __constant_htonl(DUMP_CHAIN_LAST);
+ ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
+ *last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
qla2xxx_dump_post_process(base_vha, rval);
qla83xx_fw_dump_failed:
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#else
+ ;
+#endif
}
/****************************************************************************/
#define PCI_DEVICE_ID_QLOGIC_ISP2031 0x2031
#define PCI_DEVICE_ID_QLOGIC_ISP2071 0x2071
#define PCI_DEVICE_ID_QLOGIC_ISP2271 0x2271
+#define PCI_DEVICE_ID_QLOGIC_ISP2261 0x2261
uint32_t device_type;
#define DT_ISP2100 BIT_0
#define DT_ISP8044 BIT_18
#define DT_ISP2071 BIT_19
#define DT_ISP2271 BIT_20
-#define DT_ISP_LAST (DT_ISP2271 << 1)
+#define DT_ISP2261 BIT_21
+#define DT_ISP_LAST (DT_ISP2261 << 1)
#define DT_T10_PI BIT_25
#define DT_IIDMA BIT_26
#define IS_QLAFX00(ha) (DT_MASK(ha) & DT_ISPFX00)
#define IS_QLA2071(ha) (DT_MASK(ha) & DT_ISP2071)
#define IS_QLA2271(ha) (DT_MASK(ha) & DT_ISP2271)
+#define IS_QLA2261(ha) (DT_MASK(ha) & DT_ISP2261)
#define IS_QLA23XX(ha) (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA2322(ha) || \
IS_QLA6312(ha) || IS_QLA6322(ha))
#define IS_QLA25XX(ha) (IS_QLA2532(ha))
#define IS_QLA83XX(ha) (IS_QLA2031(ha) || IS_QLA8031(ha))
#define IS_QLA84XX(ha) (IS_QLA8432(ha))
-#define IS_QLA27XX(ha) (IS_QLA2071(ha) || IS_QLA2271(ha))
+#define IS_QLA27XX(ha) (IS_QLA2071(ha) || IS_QLA2271(ha) || IS_QLA2261(ha))
#define IS_QLA24XX_TYPE(ha) (IS_QLA24XX(ha) || IS_QLA54XX(ha) || \
IS_QLA84XX(ha))
#define IS_CNA_CAPABLE(ha) (IS_QLA81XX(ha) || IS_QLA82XX(ha) || \
#define IS_TGT_MODE_CAPABLE(ha) (ha->tgt.atio_q_length)
#define IS_SHADOW_REG_CAPABLE(ha) (IS_QLA27XX(ha))
#define IS_DPORT_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha))
+#define IS_FAWWN_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha))
/* HBA serial number */
uint8_t serial0;
uint8_t mpi_version[3];
uint32_t mpi_capabilities;
uint8_t phy_version[3];
+ uint8_t pep_version[3];
/* Firmware dump template */
void *fw_dump_template;
mempool_t *ctx_mempool;
#define FCP_CMND_DMA_POOL_SIZE 512
- unsigned long nx_pcibase; /* Base I/O address */
- uint8_t *nxdb_rd_ptr; /* Doorbell read pointer */
- unsigned long nxdb_wr_ptr; /* Door bell write pointer */
+ void __iomem *nx_pcibase; /* Base I/O address */
+ void __iomem *nxdb_rd_ptr; /* Doorbell read pointer */
+ void __iomem *nxdb_wr_ptr; /* Door bell write pointer */
uint32_t crb_win;
uint32_t curr_window;
ms_pkt->entry_type = MS_IOCB_TYPE;
ms_pkt->entry_count = 1;
SET_TARGET_ID(ha, ms_pkt->loop_id, SIMPLE_NAME_SERVER);
- ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG);
+ ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG);
ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
- ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
- ms_pkt->total_dsd_count = __constant_cpu_to_le16(2);
+ ms_pkt->cmd_dsd_count = cpu_to_le16(1);
+ ms_pkt->total_dsd_count = cpu_to_le16(2);
ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size);
ms_pkt->req_bytecount = cpu_to_le32(req_size);
ct_pkt->entry_type = CT_IOCB_TYPE;
ct_pkt->entry_count = 1;
- ct_pkt->nport_handle = __constant_cpu_to_le16(NPH_SNS);
+ ct_pkt->nport_handle = cpu_to_le16(NPH_SNS);
ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
- ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
- ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1);
+ ct_pkt->cmd_dsd_count = cpu_to_le16(1);
+ ct_pkt->rsp_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
case CS_DATA_UNDERRUN:
case CS_DATA_OVERRUN: /* Overrun? */
if (ct_rsp->header.response !=
- __constant_cpu_to_be16(CT_ACCEPT_RESPONSE)) {
+ cpu_to_be16(CT_ACCEPT_RESPONSE)) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2077,
"%s failed rejected request on port_id: %02x%02x%02x Compeltion status 0x%x, response 0x%x\n",
routine, vha->d_id.b.domain,
ms_pkt->entry_type = MS_IOCB_TYPE;
ms_pkt->entry_count = 1;
SET_TARGET_ID(ha, ms_pkt->loop_id, vha->mgmt_svr_loop_id);
- ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG);
+ ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG);
ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
- ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
- ms_pkt->total_dsd_count = __constant_cpu_to_le16(2);
+ ms_pkt->cmd_dsd_count = cpu_to_le16(1);
+ ms_pkt->total_dsd_count = cpu_to_le16(2);
ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size);
ms_pkt->req_bytecount = cpu_to_le32(req_size);
ct_pkt->entry_count = 1;
ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id);
ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
- ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
- ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1);
+ ct_pkt->cmd_dsd_count = cpu_to_le16(1);
+ ct_pkt->rsp_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
/* Prepare FDMI command arguments -- attribute block, attributes. */
memcpy(ct_req->req.rhba.hba_identifier, vha->port_name, WWN_SIZE);
- ct_req->req.rhba.entry_count = __constant_cpu_to_be32(1);
+ ct_req->req.rhba.entry_count = cpu_to_be32(1);
memcpy(ct_req->req.rhba.port_name, vha->port_name, WWN_SIZE);
size = 2 * WWN_SIZE + 4 + 4;
/* Attributes */
ct_req->req.rhba.attrs.count =
- __constant_cpu_to_be32(FDMI_HBA_ATTR_COUNT);
+ cpu_to_be32(FDMI_HBA_ATTR_COUNT);
entries = ct_req->req.rhba.hba_identifier;
/* Nodename. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_NODE_NAME);
- eiter->len = __constant_cpu_to_be16(4 + WWN_SIZE);
+ eiter->type = cpu_to_be16(FDMI_HBA_NODE_NAME);
+ eiter->len = cpu_to_be16(4 + WWN_SIZE);
memcpy(eiter->a.node_name, vha->node_name, WWN_SIZE);
size += 4 + WWN_SIZE;
/* Manufacturer. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_MANUFACTURER);
+ eiter->type = cpu_to_be16(FDMI_HBA_MANUFACTURER);
alen = strlen(QLA2XXX_MANUFACTURER);
snprintf(eiter->a.manufacturer, sizeof(eiter->a.manufacturer),
"%s", "QLogic Corporation");
/* Serial number. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_SERIAL_NUMBER);
+ eiter->type = cpu_to_be16(FDMI_HBA_SERIAL_NUMBER);
if (IS_FWI2_CAPABLE(ha))
qla2xxx_get_vpd_field(vha, "SN", eiter->a.serial_num,
sizeof(eiter->a.serial_num));
/* Model name. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL);
+ eiter->type = cpu_to_be16(FDMI_HBA_MODEL);
snprintf(eiter->a.model, sizeof(eiter->a.model),
"%s", ha->model_number);
alen = strlen(eiter->a.model);
/* Model description. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION);
+ eiter->type = cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION);
snprintf(eiter->a.model_desc, sizeof(eiter->a.model_desc),
"%s", ha->model_desc);
alen = strlen(eiter->a.model_desc);
/* Hardware version. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_HARDWARE_VERSION);
+ eiter->type = cpu_to_be16(FDMI_HBA_HARDWARE_VERSION);
if (!IS_FWI2_CAPABLE(ha)) {
snprintf(eiter->a.hw_version, sizeof(eiter->a.hw_version),
"HW:%s", ha->adapter_id);
/* Driver version. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_DRIVER_VERSION);
+ eiter->type = cpu_to_be16(FDMI_HBA_DRIVER_VERSION);
snprintf(eiter->a.driver_version, sizeof(eiter->a.driver_version),
"%s", qla2x00_version_str);
alen = strlen(eiter->a.driver_version);
/* Option ROM version. */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION);
+ eiter->type = cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION);
snprintf(eiter->a.orom_version, sizeof(eiter->a.orom_version),
"%d.%02d", ha->bios_revision[1], ha->bios_revision[0]);
alen = strlen(eiter->a.orom_version);
/* Firmware version */
eiter = entries + size;
- eiter->type = __constant_cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION);
+ eiter->type = cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION);
ha->isp_ops->fw_version_str(vha, eiter->a.fw_version,
sizeof(eiter->a.fw_version));
alen = strlen(eiter->a.fw_version);
ct_pkt->entry_count = 1;
ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id);
ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
- ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
- ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1);
+ ct_pkt->cmd_dsd_count = cpu_to_le16(1);
+ ct_pkt->rsp_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
- uint32_t cnt, d2;
+ uint32_t cnt;
uint16_t wd;
static int abts_cnt; /* ISP abort retry counts */
int rval = QLA_SUCCESS;
udelay(100);
/* Wait for firmware to complete NVRAM accesses. */
- d2 = (uint32_t) RD_REG_WORD(®->mailbox0);
+ RD_REG_WORD(®->mailbox0);
for (cnt = 10000; RD_REG_WORD(®->mailbox0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
barrier();
RD_REG_DWORD(®->mailbox0));
/* Wait for soft-reset to complete. */
- d2 = RD_REG_DWORD(®->ctrl_status);
+ RD_REG_DWORD(®->ctrl_status);
for (cnt = 0; cnt < 6000000; cnt++) {
barrier();
if ((RD_REG_DWORD(®->ctrl_status) &
WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_RESET);
RD_REG_DWORD(®->hccr);
- d2 = (uint32_t) RD_REG_WORD(®->mailbox0);
+ RD_REG_WORD(®->mailbox0);
for (cnt = 6000000; RD_REG_WORD(®->mailbox0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
barrier();
static void
qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
{
- struct qla_hw_data *ha = vha->hw;
uint32_t wd32 = 0;
uint delta_msec = 100;
uint elapsed_msec = 0;
uint timeout_msec;
ulong n;
- if (!IS_QLA25XX(ha) && !IS_QLA2031(ha))
+ if (vha->hw->pdev->subsystem_device != 0x0175 &&
+ vha->hw->pdev->subsystem_device != 0x0240)
return;
+ WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
+ udelay(100);
+
attempt:
timeout_msec = TIMEOUT_SEMAPHORE;
n = timeout_msec / delta_msec;
ha->fw_dump->signature[1] = 'L';
ha->fw_dump->signature[2] = 'G';
ha->fw_dump->signature[3] = 'C';
- ha->fw_dump->version = __constant_htonl(1);
+ ha->fw_dump->version = htonl(1);
ha->fw_dump->fixed_size = htonl(fixed_size);
ha->fw_dump->mem_size = htonl(mem_size);
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Setup ring parameters in initialization control block. */
- ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
- ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
+ ha->init_cb->request_q_outpointer = cpu_to_le16(0);
+ ha->init_cb->response_q_inpointer = cpu_to_le16(0);
ha->init_cb->request_q_length = cpu_to_le16(req->length);
ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
qla24xx_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
- device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
+ device_reg_t *reg = ISP_QUE_REG(ha, 0);
struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
struct qla_msix_entry *msix;
struct init_cb_24xx *icb;
/* Setup ring parameters in initialization control block. */
icb = (struct init_cb_24xx *)ha->init_cb;
- icb->request_q_outpointer = __constant_cpu_to_le16(0);
- icb->response_q_inpointer = __constant_cpu_to_le16(0);
+ icb->request_q_outpointer = cpu_to_le16(0);
+ icb->response_q_inpointer = cpu_to_le16(0);
icb->request_q_length = cpu_to_le16(req->length);
icb->response_q_length = cpu_to_le16(rsp->length);
icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
/* Setup ATIO queue dma pointers for target mode */
- icb->atio_q_inpointer = __constant_cpu_to_le16(0);
+ icb->atio_q_inpointer = cpu_to_le16(0);
icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma));
icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma));
if (IS_SHADOW_REG_CAPABLE(ha))
- icb->firmware_options_2 |=
- __constant_cpu_to_le32(BIT_30|BIT_29);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
- icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
- icb->rid = __constant_cpu_to_le16(rid);
+ icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
+ icb->rid = cpu_to_le16(rid);
if (ha->flags.msix_enabled) {
msix = &ha->msix_entries[1];
ql_dbg(ql_dbg_init, vha, 0x00fd,
}
/* Use alternate PCI bus number */
if (MSB(rid))
- icb->firmware_options_2 |=
- __constant_cpu_to_le32(BIT_19);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_19);
/* Use alternate PCI devfn */
if (LSB(rid))
- icb->firmware_options_2 |=
- __constant_cpu_to_le32(BIT_18);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_18);
/* Use Disable MSIX Handshake mode for capable adapters */
if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
(ha->flags.msix_enabled)) {
- icb->firmware_options_2 &=
- __constant_cpu_to_le32(~BIT_22);
+ icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
ha->flags.disable_msix_handshake = 1;
ql_dbg(ql_dbg_init, vha, 0x00fe,
"MSIX Handshake Disable Mode turned on.\n");
} else {
- icb->firmware_options_2 |=
- __constant_cpu_to_le32(BIT_22);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_22);
}
- icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_23);
WRT_REG_DWORD(®->isp25mq.req_q_in, 0);
WRT_REG_DWORD(®->isp25mq.req_q_out, 0);
}
if (IS_FWI2_CAPABLE(ha)) {
- mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
+ mid_init_cb->options = cpu_to_le16(BIT_1);
mid_init_cb->init_cb.execution_throttle =
cpu_to_le16(ha->fw_xcb_count);
/* D-Port Status */
nv->frame_payload_size = 1024;
}
- nv->max_iocb_allocation = __constant_cpu_to_le16(256);
- nv->execution_throttle = __constant_cpu_to_le16(16);
+ nv->max_iocb_allocation = cpu_to_le16(256);
+ nv->execution_throttle = cpu_to_le16(16);
nv->retry_count = 8;
nv->retry_delay = 1;
nv->host_p[1] = BIT_2;
nv->reset_delay = 5;
nv->port_down_retry_count = 8;
- nv->max_luns_per_target = __constant_cpu_to_le16(8);
+ nv->max_luns_per_target = cpu_to_le16(8);
nv->link_down_timeout = 60;
rval = 1;
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
- icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
+ icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = nv->retry_count;
if (ql2xloginretrycount)
ha->login_retry_count = ql2xloginretrycount;
- icb->lun_enables = __constant_cpu_to_le16(0);
+ icb->lun_enables = cpu_to_le16(0);
icb->command_resource_count = 0;
icb->immediate_notify_resource_count = 0;
- icb->timeout = __constant_cpu_to_le16(0);
+ icb->timeout = cpu_to_le16(0);
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
/* Enable RIO */
uint16_t *next_loopid)
{
int rval;
- int retry;
uint8_t opts;
struct qla_hw_data *ha = vha->hw;
rval = QLA_SUCCESS;
- retry = 0;
if (IS_ALOGIO_CAPABLE(ha)) {
if (fcport->flags & FCF_ASYNC_SENT)
/* Bad NVRAM data, set defaults parameters. */
if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
|| nv->id[3] != ' ' ||
- nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
+ nv->nvram_version < cpu_to_le16(ICB_VERSION)) {
/* Reset NVRAM data. */
ql_log(ql_log_warn, vha, 0x006b,
"Inconsistent NVRAM detected: checksum=0x%x id=%c "
* Set default initialization control block.
*/
memset(nv, 0, ha->nvram_size);
- nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
- nv->version = __constant_cpu_to_le16(ICB_VERSION);
+ nv->nvram_version = cpu_to_le16(ICB_VERSION);
+ nv->version = cpu_to_le16(ICB_VERSION);
nv->frame_payload_size = 2048;
- nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
- nv->exchange_count = __constant_cpu_to_le16(0);
- nv->hard_address = __constant_cpu_to_le16(124);
+ nv->execution_throttle = cpu_to_le16(0xFFFF);
+ nv->exchange_count = cpu_to_le16(0);
+ nv->hard_address = cpu_to_le16(124);
nv->port_name[0] = 0x21;
nv->port_name[1] = 0x00 + ha->port_no + 1;
nv->port_name[2] = 0x00;
nv->node_name[6] = 0x55;
nv->node_name[7] = 0x86;
qla24xx_nvram_wwn_from_ofw(vha, nv);
- nv->login_retry_count = __constant_cpu_to_le16(8);
- nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
- nv->login_timeout = __constant_cpu_to_le16(0);
+ nv->login_retry_count = cpu_to_le16(8);
+ nv->interrupt_delay_timer = cpu_to_le16(0);
+ nv->login_timeout = cpu_to_le16(0);
nv->firmware_options_1 =
- __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
- nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
- nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
- nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
- nv->efi_parameters = __constant_cpu_to_le32(0);
+ cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
+ nv->firmware_options_2 = cpu_to_le32(2 << 4);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_12);
+ nv->firmware_options_3 = cpu_to_le32(2 << 13);
+ nv->host_p = cpu_to_le32(BIT_11|BIT_10);
+ nv->efi_parameters = cpu_to_le32(0);
nv->reset_delay = 5;
- nv->max_luns_per_target = __constant_cpu_to_le16(128);
- nv->port_down_retry_count = __constant_cpu_to_le16(30);
- nv->link_down_timeout = __constant_cpu_to_le16(30);
+ nv->max_luns_per_target = cpu_to_le16(128);
+ nv->port_down_retry_count = cpu_to_le16(30);
+ nv->link_down_timeout = cpu_to_le16(30);
rval = 1;
}
if (!qla_ini_mode_enabled(vha)) {
/* Don't enable full login after initial LIP */
- nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Don't enable LIP full login for initiator */
- nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ nv->host_p &= cpu_to_le32(~BIT_10);
}
qlt_24xx_config_nvram_stage1(vha, nv);
qlt_24xx_config_nvram_stage2(vha, icb);
- if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
+ if (nv->host_p & cpu_to_le32(BIT_15)) {
/* Use alternate WWN? */
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
/* Prepare nodename */
- if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
+ if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
- icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
+ icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = le16_to_cpu(nv->login_retry_count);
if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
if (le16_to_cpu(nv->login_timeout) < 4)
- nv->login_timeout = __constant_cpu_to_le16(4);
+ nv->login_timeout = cpu_to_le16(4);
ha->login_timeout = le16_to_cpu(nv->login_timeout);
icb->login_timeout = nv->login_timeout;
ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
le16_to_cpu(icb->interrupt_delay_timer): 2;
}
- icb->firmware_options_2 &= __constant_cpu_to_le32(
+ icb->firmware_options_2 &= cpu_to_le32(
~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
vha->flags.process_response_queue = 0;
if (ha->zio_mode != QLA_ZIO_DISABLED) {
/* Bad NVRAM data, set defaults parameters. */
if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
|| nv->id[3] != ' ' ||
- nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
+ nv->nvram_version < cpu_to_le16(ICB_VERSION)) {
/* Reset NVRAM data. */
ql_log(ql_log_info, vha, 0x0073,
"Inconsistent NVRAM detected: checksum=0x%x id=%c "
* Set default initialization control block.
*/
memset(nv, 0, ha->nvram_size);
- nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
- nv->version = __constant_cpu_to_le16(ICB_VERSION);
+ nv->nvram_version = cpu_to_le16(ICB_VERSION);
+ nv->version = cpu_to_le16(ICB_VERSION);
nv->frame_payload_size = 2048;
- nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
- nv->exchange_count = __constant_cpu_to_le16(0);
+ nv->execution_throttle = cpu_to_le16(0xFFFF);
+ nv->exchange_count = cpu_to_le16(0);
nv->port_name[0] = 0x21;
nv->port_name[1] = 0x00 + ha->port_no + 1;
nv->port_name[2] = 0x00;
nv->node_name[5] = 0x1c;
nv->node_name[6] = 0x55;
nv->node_name[7] = 0x86;
- nv->login_retry_count = __constant_cpu_to_le16(8);
- nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
- nv->login_timeout = __constant_cpu_to_le16(0);
+ nv->login_retry_count = cpu_to_le16(8);
+ nv->interrupt_delay_timer = cpu_to_le16(0);
+ nv->login_timeout = cpu_to_le16(0);
nv->firmware_options_1 =
- __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
- nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
- nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
- nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
- nv->efi_parameters = __constant_cpu_to_le32(0);
+ cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
+ nv->firmware_options_2 = cpu_to_le32(2 << 4);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_12);
+ nv->firmware_options_3 = cpu_to_le32(2 << 13);
+ nv->host_p = cpu_to_le32(BIT_11|BIT_10);
+ nv->efi_parameters = cpu_to_le32(0);
nv->reset_delay = 5;
- nv->max_luns_per_target = __constant_cpu_to_le16(128);
- nv->port_down_retry_count = __constant_cpu_to_le16(30);
- nv->link_down_timeout = __constant_cpu_to_le16(180);
+ nv->max_luns_per_target = cpu_to_le16(128);
+ nv->port_down_retry_count = cpu_to_le16(30);
+ nv->link_down_timeout = cpu_to_le16(180);
nv->enode_mac[0] = 0x00;
nv->enode_mac[1] = 0xC0;
nv->enode_mac[2] = 0xDD;
qlt_81xx_config_nvram_stage2(vha, icb);
/* Use alternate WWN? */
- if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
+ if (nv->host_p & cpu_to_le32(BIT_15)) {
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
/* Prepare nodename */
- if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
+ if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
- icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
+ icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = le16_to_cpu(nv->login_retry_count);
if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
if (le16_to_cpu(nv->login_timeout) < 4)
- nv->login_timeout = __constant_cpu_to_le16(4);
+ nv->login_timeout = cpu_to_le16(4);
ha->login_timeout = le16_to_cpu(nv->login_timeout);
icb->login_timeout = nv->login_timeout;
/* if not running MSI-X we need handshaking on interrupts */
if (!vha->hw->flags.msix_enabled && (IS_QLA83XX(ha) || IS_QLA27XX(ha)))
- icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_22);
+ icb->firmware_options_2 |= cpu_to_le32(BIT_22);
/* Enable ZIO. */
if (!vha->flags.init_done) {
ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
le16_to_cpu(icb->interrupt_delay_timer): 2;
}
- icb->firmware_options_2 &= __constant_cpu_to_le32(
+ icb->firmware_options_2 &= cpu_to_le32(
~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
vha->flags.process_response_queue = 0;
if (ha->zio_mode != QLA_ZIO_DISABLED) {
cont_pkt = (cont_entry_t *)req->ring_ptr;
/* Load packet defaults. */
- *((uint32_t *)(&cont_pkt->entry_type)) =
- __constant_cpu_to_le32(CONTINUE_TYPE);
+ *((uint32_t *)(&cont_pkt->entry_type)) = cpu_to_le32(CONTINUE_TYPE);
return (cont_pkt);
}
/* Load packet defaults. */
*((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ?
- __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) :
- __constant_cpu_to_le32(CONTINUE_A64_TYPE);
+ cpu_to_le32(CONTINUE_A64_TYPE_FX00) :
+ cpu_to_le32(CONTINUE_A64_TYPE);
return (cont_pkt);
}
/* Update entry type to indicate Command Type 2 IOCB */
*((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_TYPE);
+ cpu_to_le32(COMMAND_TYPE);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
- *((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_A64_TYPE);
+ *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_A64_TYPE);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
int
qla2x00_start_scsi(srb_t *sp)
{
- int ret, nseg;
+ int nseg;
unsigned long flags;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct rsp_que *rsp;
/* Setup device pointers. */
- ret = 0;
vha = sp->fcport->vha;
ha = vha->hw;
reg = &ha->iobase->isp;
/* Set target ID and LUN number*/
SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
- cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG);
+ cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
/* Load SCSI command packet. */
memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
- device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
+ device_reg_t *reg = ISP_QUE_REG(ha, req->id);
if (IS_P3P_TYPE(ha)) {
qla82xx_start_iocbs(vha);
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
- *((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_TYPE_6);
+ *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_6);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return 0;
}
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
- cmd_pkt->control_flags =
- __constant_cpu_to_le16(CF_WRITE_DATA);
+ cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
- cmd_pkt->control_flags =
- __constant_cpu_to_le16(CF_READ_DATA);
+ cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
}
*
* Returns the number of dsd list needed to store @dsds.
*/
-inline uint16_t
+static inline uint16_t
qla24xx_calc_dsd_lists(uint16_t dsds)
{
uint16_t dsd_lists = 0;
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
*/
-inline void
+static inline void
qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
uint16_t tot_dsds)
{
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i;
- struct req_que *req;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
- *((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_TYPE_7);
+ *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_7);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
vha = sp->fcport->vha;
- req = vha->req;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
- cmd_pkt->task_mgmt_flags =
- __constant_cpu_to_le16(TMF_WRITE_DATA);
+ cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
- cmd_pkt->task_mgmt_flags =
- __constant_cpu_to_le16(TMF_READ_DATA);
+ cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
}
* match LBA in CDB + N
*/
case SCSI_PROT_DIF_TYPE2:
- pkt->app_tag = __constant_cpu_to_le16(0);
+ pkt->app_tag = cpu_to_le16(0);
pkt->app_tag_mask[0] = 0x0;
pkt->app_tag_mask[1] = 0x0;
case SCSI_PROT_DIF_TYPE1:
pkt->ref_tag = cpu_to_le32((uint32_t)
(0xffffffff & scsi_get_lba(cmd)));
- pkt->app_tag = __constant_cpu_to_le16(0);
+ pkt->app_tag = cpu_to_le16(0);
pkt->app_tag_mask[0] = 0x0;
pkt->app_tag_mask[1] = 0x0;
dma_addr_t sle_dma;
uint32_t sle_dma_len, tot_prot_dma_len = 0;
struct scsi_cmnd *cmd;
- struct scsi_qla_host *vha;
memset(&sgx, 0, sizeof(struct qla2_sgx));
if (sp) {
- vha = sp->fcport->vha;
cmd = GET_CMD_SP(sp);
prot_int = cmd->device->sector_size;
sg_prot = scsi_prot_sglist(cmd);
} else if (tc) {
- vha = tc->vha;
prot_int = tc->blk_sz;
sgx.tot_bytes = tc->bufflen;
sgx.cur_sg = tc->sg;
int i;
uint16_t used_dsds = tot_dsds;
struct scsi_cmnd *cmd;
- struct scsi_qla_host *vha;
if (sp) {
cmd = GET_CMD_SP(sp);
sgl = scsi_sglist(cmd);
- vha = sp->fcport->vha;
} else if (tc) {
sgl = tc->sg;
- vha = tc->vha;
} else {
BUG();
return 1;
uint32_t *cur_dsd, *fcp_dl;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
- int sgc;
uint32_t total_bytes = 0;
uint32_t data_bytes;
uint32_t dif_bytes;
cmd = GET_CMD_SP(sp);
- sgc = 0;
/* Update entry type to indicate Command Type CRC_2 IOCB */
- *((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_TYPE_CRC_2);
+ *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_CRC_2);
vha = sp->fcport->vha;
ha = vha->hw;
/* No data transfer */
data_bytes = scsi_bufflen(cmd);
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return QLA_SUCCESS;
}
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags =
- __constant_cpu_to_le16(CF_WRITE_DATA);
+ cpu_to_le16(CF_WRITE_DATA);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags =
- __constant_cpu_to_le16(CF_READ_DATA);
+ cpu_to_le16(CF_READ_DATA);
}
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
- crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0);
+ crc_ctx_pkt->guard_seed = cpu_to_le16(0);
/* Fibre channel byte count */
cmd_pkt->byte_count = cpu_to_le32(total_bytes);
fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
*fcp_dl = htonl(total_bytes);
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
- cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ cmd_pkt->byte_count = cpu_to_le32(0);
return QLA_SUCCESS;
}
/* Walks data segments */
- cmd_pkt->control_flags |=
- __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
+ cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
if (!bundling && tot_prot_dsds) {
if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
if (bundling && tot_prot_dsds) {
/* Walks dif segments */
- cmd_pkt->control_flags |=
- __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
+ cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
tot_prot_dsds, NULL))
int
qla24xx_start_scsi(srb_t *sp)
{
- int ret, nseg;
+ int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t index;
struct qla_hw_data *ha = vha->hw;
/* Setup device pointers. */
- ret = 0;
-
qla25xx_set_que(sp, &rsp);
req = vha->req;
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where completion should happen */
cmd_pkt->entry_status = (uint8_t) rsp->id;
- cmd_pkt->timeout = __constant_cpu_to_le16(0);
+ cmd_pkt->timeout = cpu_to_le16(0);
wmb();
/* Adjust ring index. */
{
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
- device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
+ device_reg_t *reg = ISP_QUE_REG(ha, req->id);
uint32_t index, handle;
request_t *pkt;
uint16_t cnt, req_cnt;
els_iocb->entry_status = 0;
els_iocb->handle = sp->handle;
els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
- els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
+ els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
els_iocb->vp_index = sp->fcport->vha->vp_idx;
els_iocb->sof_type = EST_SOFI3;
- els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt);
+ els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
els_iocb->opcode =
sp->type == SRB_ELS_CMD_RPT ?
struct qla_hw_data *ha = vha->hw;
struct fc_bsg_job *bsg_job = sp->u.bsg_job;
int loop_iterartion = 0;
- int cont_iocb_prsnt = 0;
int entry_count = 1;
memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
ct_iocb->entry_status = 0;
ct_iocb->handle1 = sp->handle;
SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
- ct_iocb->status = __constant_cpu_to_le16(0);
- ct_iocb->control_flags = __constant_cpu_to_le16(0);
+ ct_iocb->status = cpu_to_le16(0);
+ ct_iocb->control_flags = cpu_to_le16(0);
ct_iocb->timeout = 0;
ct_iocb->cmd_dsd_count =
- __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
+ cpu_to_le16(bsg_job->request_payload.sg_cnt);
ct_iocb->total_dsd_count =
- __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
+ cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
ct_iocb->req_bytecount =
cpu_to_le32(bsg_job->request_payload.payload_len);
ct_iocb->rsp_bytecount =
vha->hw->req_q_map[0]);
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
avail_dsds = 5;
- cont_iocb_prsnt = 1;
entry_count++;
}
struct qla_hw_data *ha = vha->hw;
struct fc_bsg_job *bsg_job = sp->u.bsg_job;
int loop_iterartion = 0;
- int cont_iocb_prsnt = 0;
int entry_count = 1;
ct_iocb->entry_type = CT_IOCB_TYPE;
ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
ct_iocb->vp_index = sp->fcport->vha->vp_idx;
- ct_iocb->comp_status = __constant_cpu_to_le16(0);
+ ct_iocb->comp_status = cpu_to_le16(0);
ct_iocb->cmd_dsd_count =
- __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
+ cpu_to_le16(bsg_job->request_payload.sg_cnt);
ct_iocb->timeout = 0;
ct_iocb->rsp_dsd_count =
- __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt);
+ cpu_to_le16(bsg_job->reply_payload.sg_cnt);
ct_iocb->rsp_byte_count =
cpu_to_le32(bsg_job->reply_payload.payload_len);
ct_iocb->cmd_byte_count =
ha->req_q_map[0]);
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
avail_dsds = 5;
- cont_iocb_prsnt = 1;
entry_count++;
}
int
qla82xx_start_scsi(srb_t *sp)
{
- int ret, nseg;
+ int nseg;
unsigned long flags;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
struct rsp_que *rsp = NULL;
/* Setup device pointers. */
- ret = 0;
reg = &ha->iobase->isp82;
cmd = GET_CMD_SP(sp);
req = vha->req;
/* write, read and verify logic */
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
- qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
+ qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
else {
- WRT_REG_DWORD(
- (unsigned long __iomem *)ha->nxdb_wr_ptr,
- dbval);
+ WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
wmb();
- while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
- WRT_REG_DWORD(
- (unsigned long __iomem *)ha->nxdb_wr_ptr,
- dbval);
+ while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
+ WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
wmb();
}
}
/*Update entry type to indicate bidir command */
*((uint32_t *)(&cmd_pkt->entry_type)) =
- __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL);
+ cpu_to_le32(COMMAND_BIDIRECTIONAL);
/* Set the transfer direction, in this set both flags
* Also set the BD_WRAP_BACK flag, firmware will take care
*/
cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
- cmd_pkt->control_flags =
- __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
+ cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
BD_WRAP_BACK);
req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
{
/* Check for PCI disconnection */
- if (reg == 0xffffffff) {
+ if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
return ret;
}
+static inline fc_port_t *
+qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
+{
+ fc_port_t *fcport;
+
+ list_for_each_entry(fcport, &vha->vp_fcports, list)
+ if (fcport->loop_id == loop_id)
+ return fcport;
+ return NULL;
+}
+
/**
* qla2x00_async_event() - Process aynchronous events.
* @ha: SCSI driver HA context
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
- uint32_t rscn_entry, host_pid, tmp_pid;
+ uint32_t rscn_entry, host_pid;
unsigned long flags;
fc_port_t *fcport = NULL;
(mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
break;
- /* Global event -- port logout or port unavailable. */
- if (mb[1] == 0xffff && mb[2] == 0x7) {
+ if (mb[2] == 0x7) {
ql_dbg(ql_dbg_async, vha, 0x5010,
- "Port unavailable %04x %04x %04x.\n",
+ "Port %s %04x %04x %04x.\n",
+ mb[1] == 0xffff ? "unavailable" : "logout",
mb[1], mb[2], mb[3]);
+
+ if (mb[1] == 0xffff)
+ goto global_port_update;
+
+ /* Port logout */
+ fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
+ if (!fcport)
+ break;
+ if (atomic_read(&fcport->state) != FCS_ONLINE)
+ break;
+ ql_dbg(ql_dbg_async, vha, 0x508a,
+ "Marking port lost loopid=%04x portid=%06x.\n",
+ fcport->loop_id, fcport->d_id.b24);
+ qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
+ break;
+
+global_port_update:
+ /* Port unavailable. */
ql_log(ql_log_warn, vha, 0x505e,
"Link is offline.\n");
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (atomic_read(&fcport->state) != FCS_ONLINE)
continue;
- tmp_pid = fcport->d_id.b24;
if (fcport->d_id.b24 == rscn_entry) {
qla2x00_mark_device_lost(vha, fcport, 0, 0);
break;
"Async-%s error - hdl=%x entry-status(%x).\n",
type, sp->handle, sts->entry_status);
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
- } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_log(ql_log_warn, fcport->vha, 0x5039,
"Async-%s error - hdl=%x completion status(%x).\n",
type, sp->handle, sts->comp_status);
}
/* Validate handle. */
- if (handle < req->num_outstanding_cmds)
+ if (handle < req->num_outstanding_cmds) {
sp = req->outstanding_cmds[handle];
- else
- sp = NULL;
-
- if (sp == NULL) {
+ if (!sp) {
+ ql_dbg(ql_dbg_io, vha, 0x3075,
+ "%s(%ld): Already returned command for status handle (0x%x).\n",
+ __func__, vha->host_no, sts->handle);
+ return;
+ }
+ } else {
ql_dbg(ql_dbg_io, vha, 0x3017,
- "Invalid status handle (0x%x).\n", sts->handle);
+ "Invalid status handle, out of range (0x%x).\n",
+ sts->handle);
if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
if (IS_P3P_TYPE(ha))
ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
"FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
"portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
- "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
+ "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
comp_status, scsi_status, res, vha->host_no,
cp->device->id, cp->device->lun, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
cp->cmnd, scsi_bufflen(cp), rsp_info_len,
- resid_len, fw_resid_len);
+ resid_len, fw_resid_len, sp, cp);
if (rsp->status_srb == NULL)
sp->done(ha, sp, res);
}
fatal:
ql_log(ql_log_warn, vha, 0x5030,
- "Error entry - invalid handle/queue.\n");
-
- if (IS_P3P_TYPE(ha))
- set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
- else
- set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
- qla2xxx_wake_dpc(vha);
+ "Error entry - invalid handle/queue (%04x).\n", que);
}
/**
if (IS_FWI2_CAPABLE(ha))
mcp->in_mb |= MBX_17|MBX_16|MBX_15;
if (IS_QLA27XX(ha))
- mcp->in_mb |= MBX_21|MBX_20|MBX_19|MBX_18;
+ mcp->in_mb |= MBX_23 | MBX_22 | MBX_21 | MBX_20 | MBX_19 |
+ MBX_18 | MBX_14 | MBX_13 | MBX_11 | MBX_10 | MBX_9 | MBX_8;
+
mcp->flags = 0;
mcp->tov = MBX_TOV_SECONDS;
rval = qla2x00_mailbox_command(vha, mcp);
ha->fw_memory_size = 0x1FFFF; /* Defaults to 128KB. */
else
ha->fw_memory_size = (mcp->mb[5] << 16) | mcp->mb[4];
+
if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
ha->mpi_version[0] = mcp->mb[10] & 0xff;
ha->mpi_version[1] = mcp->mb[11] >> 8;
ha->phy_version[1] = mcp->mb[9] >> 8;
ha->phy_version[2] = mcp->mb[9] & 0xff;
}
+
if (IS_FWI2_CAPABLE(ha)) {
ha->fw_attributes_h = mcp->mb[15];
ha->fw_attributes_ext[0] = mcp->mb[16];
"%s: Ext_FwAttributes Upper: 0x%x, Lower: 0x%x.\n",
__func__, mcp->mb[17], mcp->mb[16]);
}
+
if (IS_QLA27XX(ha)) {
+ ha->mpi_version[0] = mcp->mb[10] & 0xff;
+ ha->mpi_version[1] = mcp->mb[11] >> 8;
+ ha->mpi_version[2] = mcp->mb[11] & 0xff;
+ ha->pep_version[0] = mcp->mb[13] & 0xff;
+ ha->pep_version[1] = mcp->mb[14] >> 8;
+ ha->pep_version[2] = mcp->mb[14] & 0xff;
ha->fw_shared_ram_start = (mcp->mb[19] << 16) | mcp->mb[18];
ha->fw_shared_ram_end = (mcp->mb[21] << 16) | mcp->mb[20];
}
vha->fcoe_vn_port_mac[0] = mcp->mb[13] & 0xff;
}
/* If FA-WWN supported */
- if (mcp->mb[7] & BIT_14) {
- vha->port_name[0] = MSB(mcp->mb[16]);
- vha->port_name[1] = LSB(mcp->mb[16]);
- vha->port_name[2] = MSB(mcp->mb[17]);
- vha->port_name[3] = LSB(mcp->mb[17]);
- vha->port_name[4] = MSB(mcp->mb[18]);
- vha->port_name[5] = LSB(mcp->mb[18]);
- vha->port_name[6] = MSB(mcp->mb[19]);
- vha->port_name[7] = LSB(mcp->mb[19]);
- fc_host_port_name(vha->host) =
- wwn_to_u64(vha->port_name);
- ql_dbg(ql_dbg_mbx, vha, 0x10ca,
- "FA-WWN acquired %016llx\n",
- wwn_to_u64(vha->port_name));
+ if (IS_FAWWN_CAPABLE(vha->hw)) {
+ if (mcp->mb[7] & BIT_14) {
+ vha->port_name[0] = MSB(mcp->mb[16]);
+ vha->port_name[1] = LSB(mcp->mb[16]);
+ vha->port_name[2] = MSB(mcp->mb[17]);
+ vha->port_name[3] = LSB(mcp->mb[17]);
+ vha->port_name[4] = MSB(mcp->mb[18]);
+ vha->port_name[5] = LSB(mcp->mb[18]);
+ vha->port_name[6] = MSB(mcp->mb[19]);
+ vha->port_name[7] = LSB(mcp->mb[19]);
+ fc_host_port_name(vha->host) =
+ wwn_to_u64(vha->port_name);
+ ql_dbg(ql_dbg_mbx, vha, 0x10ca,
+ "FA-WWN acquired %016llx\n",
+ wwn_to_u64(vha->port_name));
+ }
}
}
"Entered %s.\n", __func__);
if (IS_P3P_TYPE(ha) && ql2xdbwr)
- qla82xx_wr_32(ha, ha->nxdb_wr_ptr,
+ qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr,
(0x04 | (ha->portnum << 5) | (0 << 8) | (0 << 16)));
if (ha->flags.npiv_supported)
uint32_t iop[2];
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
- struct rsp_que *rsp;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1061,
"Entered %s.\n", __func__);
req = ha->req_q_map[0];
else
req = vha->req;
- rsp = req->rsp;
lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
if (lg == NULL) {
lg->entry_count = 1;
lg->handle = MAKE_HANDLE(req->id, lg->handle);
lg->nport_handle = cpu_to_le16(loop_id);
- lg->control_flags = __constant_cpu_to_le16(LCF_COMMAND_PLOGI);
+ lg->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
if (opt & BIT_0)
- lg->control_flags |= __constant_cpu_to_le16(LCF_COND_PLOGI);
+ lg->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
if (opt & BIT_1)
- lg->control_flags |= __constant_cpu_to_le16(LCF_SKIP_PRLI);
+ lg->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
lg->port_id[0] = al_pa;
lg->port_id[1] = area;
lg->port_id[2] = domain;
"Failed to complete IOCB -- error status (%x).\n",
lg->entry_status);
rval = QLA_FUNCTION_FAILED;
- } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) {
iop[0] = le32_to_cpu(lg->io_parameter[0]);
iop[1] = le32_to_cpu(lg->io_parameter[1]);
mb[10] |= BIT_0; /* Class 2. */
if (lg->io_parameter[9] || lg->io_parameter[10])
mb[10] |= BIT_1; /* Class 3. */
- if (lg->io_parameter[0] & __constant_cpu_to_le32(BIT_7))
+ if (lg->io_parameter[0] & cpu_to_le32(BIT_7))
mb[10] |= BIT_7; /* Confirmed Completion
* Allowed
*/
dma_addr_t lg_dma;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
- struct rsp_que *rsp;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d,
"Entered %s.\n", __func__);
req = ha->req_q_map[0];
else
req = vha->req;
- rsp = req->rsp;
lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
lg->entry_count = 1;
lg->handle = MAKE_HANDLE(req->id, lg->handle);
lg->nport_handle = cpu_to_le16(loop_id);
lg->control_flags =
- __constant_cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO|
+ cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO|
LCF_FREE_NPORT);
lg->port_id[0] = al_pa;
lg->port_id[1] = area;
"Failed to complete IOCB -- error status (%x).\n",
lg->entry_status);
rval = QLA_FUNCTION_FAILED;
- } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x1071,
"Failed to complete IOCB -- completion status (%x) "
"ioparam=%x/%x.\n", le16_to_cpu(lg->comp_status),
"Failed to complete IOCB -- error status (%x).\n",
abt->entry_status);
rval = QLA_FUNCTION_FAILED;
- } else if (abt->nport_handle != __constant_cpu_to_le16(0)) {
+ } else if (abt->nport_handle != cpu_to_le16(0)) {
ql_dbg(ql_dbg_mbx, vha, 0x1090,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(abt->nport_handle));
"Failed to complete IOCB -- error status (%x).\n",
sts->entry_status);
rval = QLA_FUNCTION_FAILED;
- } else if (sts->comp_status !=
- __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x1096,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(sts->comp_status));
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- if (!IS_QLA2031(vha->hw) && !IS_QLA27XX(vha->hw))
+ if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) &&
+ !IS_QLA27XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1182,
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
- if (!IS_QLA2031(vha->hw) && !IS_QLA27XX(vha->hw))
+ if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) &&
+ !IS_QLA27XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1185,
"Failed to complete IOCB -- error status (%x).\n",
vpmod->comp_status);
rval = QLA_FUNCTION_FAILED;
- } else if (vpmod->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (vpmod->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x10bf,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(vpmod->comp_status));
vce->entry_type = VP_CTRL_IOCB_TYPE;
vce->entry_count = 1;
vce->command = cpu_to_le16(cmd);
- vce->vp_count = __constant_cpu_to_le16(1);
+ vce->vp_count = cpu_to_le16(1);
/* index map in firmware starts with 1; decrement index
* this is ok as we never use index 0
"Failed to complete IOCB -- error status (%x).\n",
vce->entry_status);
rval = QLA_FUNCTION_FAILED;
- } else if (vce->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
+ } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x10c5,
"Failed to complet IOCB -- completion status (%x).\n",
le16_to_cpu(vce->comp_status));
void
qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
{
- int ret;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp;
unsigned long flags = 0;
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
- ret = qla2x00_do_dpc_vp(vp);
+ qla2x00_do_dpc_vp(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
req->length = ha->req_que_len;
- req->ring = (void *)ha->iobase + ha->req_que_off;
+ req->ring = (void __force *)ha->iobase + ha->req_que_off;
req->dma = bar2_hdl + ha->req_que_off;
if ((!req->ring) || (req->length == 0)) {
ql_log_pci(ql_log_info, ha->pdev, 0x012f,
ha->req_que_off, (u64)req->dma);
rsp->length = ha->rsp_que_len;
- rsp->ring = (void *)ha->iobase + ha->rsp_que_off;
+ rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
rsp->dma = bar2_hdl + ha->rsp_que_off;
if ((!rsp->ring) || (rsp->length == 0)) {
ql_log_pci(ql_log_info, ha->pdev, 0x0131,
qlafx00_configure_devices(scsi_qla_host_t *vha)
{
int rval;
- unsigned long flags, save_flags;
+ unsigned long flags;
rval = QLA_SUCCESS;
- save_flags = flags = vha->dpc_flags;
+ flags = vha->dpc_flags;
ql_dbg(ql_dbg_disc, vha, 0x2090,
"Configure devices -- dpc flags =0x%lx\n", flags);
pkt = rsp->ring_ptr;
for (cnt = 0; cnt < rsp->length; cnt++) {
pkt->signature = RESPONSE_PROCESSED;
- WRT_REG_DWORD((void __iomem *)&pkt->signature,
+ WRT_REG_DWORD((void __force __iomem *)&pkt->signature,
RESPONSE_PROCESSED);
pkt++;
}
struct sts_entry_fx00 *sts;
__le16 comp_status;
__le16 scsi_status;
- uint16_t ox_id;
__le16 lscsi_status;
int32_t resid;
uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
fcport = sp->fcport;
- ox_id = 0;
sense_len = par_sense_len = rsp_info_len = resid_len =
fw_resid_len = 0;
if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
"FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
"tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
- "rsp_info=0x%x resid=0x%x fw_resid=0x%x sense_len=0x%x, "
+ "rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
"par_sense_len=0x%x, rsp_info_len=0x%x\n",
comp_status, scsi_status, res, vha->host_no,
cp->device->id, cp->device->lun, fcport->tgt_id,
lscsi_status, cp->cmnd, scsi_bufflen(cp),
- rsp_info_len, resid_len, fw_resid_len, sense_len,
+ rsp_info, resid_len, fw_resid_len, sense_len,
par_sense_len, rsp_info_len);
if (rsp->status_srb == NULL)
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
- lcmd_pkt->byte_count = __constant_cpu_to_le32(0);
+ lcmd_pkt->byte_count = cpu_to_le32(0);
return;
}
int
qlafx00_start_scsi(srb_t *sp)
{
- int ret, nseg;
+ int nseg;
unsigned long flags;
uint32_t index;
uint32_t handle;
struct scsi_lun llun;
/* Setup device pointers. */
- ret = 0;
-
rsp = ha->rsp_q_map[0];
req = vha->req;
}
/*
- * In: 'off' is offset from CRB space in 128M pci map
- * Out: 'off' is 2M pci map addr
+ * In: 'off_in' is offset from CRB space in 128M pci map
+ * Out: 'off_out' is 2M pci map addr
* side effect: lock crb window
*/
static void
-qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
+qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
+ void __iomem **off_out)
{
u32 win_read;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
- ha->crb_win = CRB_HI(*off);
- writel(ha->crb_win,
- (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
+ ha->crb_win = CRB_HI(off_in);
+ writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
/* Read back value to make sure write has gone through before trying
* to use it.
*/
- win_read = RD_REG_DWORD((void __iomem *)
- (CRB_WINDOW_2M + ha->nx_pcibase));
+ win_read = RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
if (win_read != ha->crb_win) {
ql_dbg(ql_dbg_p3p, vha, 0xb000,
"%s: Written crbwin (0x%x) "
"!= Read crbwin (0x%x), off=0x%lx.\n",
- __func__, ha->crb_win, win_read, *off);
+ __func__, ha->crb_win, win_read, off_in);
}
- *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
+ *off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
}
static inline unsigned long
}
static int
-qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
+qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
+ void __iomem **off_out)
{
struct crb_128M_2M_sub_block_map *m;
- if (*off >= QLA82XX_CRB_MAX)
+ if (off_in >= QLA82XX_CRB_MAX)
return -1;
- if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
- *off = (*off - QLA82XX_PCI_CAMQM) +
+ if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
+ *off_out = (off_in - QLA82XX_PCI_CAMQM) +
QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
return 0;
}
- if (*off < QLA82XX_PCI_CRBSPACE)
+ if (off_in < QLA82XX_PCI_CRBSPACE)
return -1;
- *off -= QLA82XX_PCI_CRBSPACE;
+ *off_out = (void __iomem *)(off_in - QLA82XX_PCI_CRBSPACE);
/* Try direct map */
- m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
+ m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
- if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
- *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
+ if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
+ *off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
return 0;
}
/* Not in direct map, use crb window */
}
int
-qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
+qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
{
+ void __iomem *off;
unsigned long flags = 0;
int rv;
- rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
+ rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
BUG_ON(rv == -1);
if (rv == 1) {
+#ifndef __CHECKER__
write_lock_irqsave(&ha->hw_lock, flags);
+#endif
qla82xx_crb_win_lock(ha);
- qla82xx_pci_set_crbwindow_2M(ha, &off);
+ qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
}
writel(data, (void __iomem *)off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
+#ifndef __CHECKER__
write_unlock_irqrestore(&ha->hw_lock, flags);
+#endif
}
return 0;
}
int
-qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
+qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
{
+ void __iomem *off;
unsigned long flags = 0;
int rv;
u32 data;
- rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
+ rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
BUG_ON(rv == -1);
if (rv == 1) {
+#ifndef __CHECKER__
write_lock_irqsave(&ha->hw_lock, flags);
+#endif
qla82xx_crb_win_lock(ha);
- qla82xx_pci_set_crbwindow_2M(ha, &off);
+ qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
}
- data = RD_REG_DWORD((void __iomem *)off);
+ data = RD_REG_DWORD(off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
+#ifndef __CHECKER__
write_unlock_irqrestore(&ha->hw_lock, flags);
+#endif
}
return data;
}
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
}
-/* PCI Windowing for DDR regions. */
-#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
- (((addr) <= (high)) && ((addr) >= (low)))
/*
* check memory access boundary.
* used by test agent. support ddr access only for now
qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
unsigned long long addr, int size)
{
- if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
+ if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX) ||
- !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
+ !addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX) ||
((size != 1) && (size != 2) && (size != 4) && (size != 8)))
return 0;
u32 win_read;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
- if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
+ if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX)) {
/* DDR network side */
window = MN_WIN(addr);
__func__, window, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
- } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
+ } else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX)) {
unsigned int temp1;
if ((addr & 0x00ff800) == 0xff800) {
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
- } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
+ } else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
QLA82XX_P3_ADDR_QDR_NET_MAX)) {
/* QDR network side */
window = MS_WIN(addr);
qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
/* DDR network side */
- if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
+ if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX))
BUG();
- else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
+ else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX))
return 1;
- else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
+ else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
QLA82XX_ADDR_OCM1_MAX))
return 1;
- else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
+ else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
/* QDR network side */
window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
if (ha->qdr_sn_window == window)
{
uint32_t off_value, rval = 0;
- WRT_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase),
- (off & 0xFFFF0000));
+ WRT_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
/* Read back value to make sure write has gone through */
- RD_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
+ RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
off_value = (off & 0x0000FFFF);
if (flag)
- WRT_REG_DWORD((void __iomem *)
- (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
- data);
+ WRT_REG_DWORD(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
+ data);
else
- rval = RD_REG_DWORD((void __iomem *)
- (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
+ rval = RD_REG_DWORD(off_value + CRB_INDIRECT_2M +
+ ha->nx_pcibase);
return rval;
}
}
len = pci_resource_len(ha->pdev, 0);
- ha->nx_pcibase =
- (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
+ ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
if (!ha->nx_pcibase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
"Cannot remap pcibase MMIO, aborting.\n");
/* Mapping of IO base pointer */
if (IS_QLA8044(ha)) {
- ha->iobase =
- (device_reg_t *)((uint8_t *)ha->nx_pcibase);
+ ha->iobase = ha->nx_pcibase;
} else if (IS_QLA82XX(ha)) {
- ha->iobase =
- (device_reg_t *)((uint8_t *)ha->nx_pcibase +
- 0xbc000 + (ha->pdev->devfn << 11));
+ ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
}
if (!ql2xdbwr) {
- ha->nxdb_wr_ptr =
- (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
+ ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
(ha->pdev->devfn << 12)), 4);
if (!ha->nxdb_wr_ptr) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
/* Mapping of IO base pointer,
* door bell read and write pointer
*/
- ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
+ ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
(ha->pdev->devfn * 8);
} else {
- ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
+ ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
QLA82XX_CAMRAM_DB1 :
QLA82XX_CAMRAM_DB2);
}
ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
"nx_pci_base=%p iobase=%p "
"max_req_queues=%d msix_count=%d.\n",
- (void *)ha->nx_pcibase, ha->iobase,
+ ha->nx_pcibase, ha->iobase,
ha->max_req_queues, ha->msix_count);
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
"nx_pci_base=%p iobase=%p "
"max_req_queues=%d msix_count=%d.\n",
- (void *)ha->nx_pcibase, ha->iobase,
+ ha->nx_pcibase, ha->iobase,
ha->max_req_queues, ha->msix_count);
return 0;
ret = pci_set_mwi(ha->pdev);
ha->chip_revision = ha->pdev->revision;
ql_dbg(ql_dbg_init, vha, 0x0043,
- "Chip revision:%d.\n",
- ha->chip_revision);
+ "Chip revision:%d; pci_set_mwi() returned %d.\n",
+ ha->chip_revision, ret);
return 0;
}
/* Setup ring parameters in initialization control block. */
icb = (struct init_cb_81xx *)ha->init_cb;
- icb->request_q_outpointer = __constant_cpu_to_le16(0);
- icb->response_q_inpointer = __constant_cpu_to_le16(0);
+ icb->request_q_outpointer = cpu_to_le16(0);
+ icb->response_q_inpointer = cpu_to_le16(0);
icb->request_q_length = cpu_to_le16(req->length);
icb->response_q_length = cpu_to_le16(rsp->length);
icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
- WRT_REG_DWORD((unsigned long __iomem *)®->req_q_out[0], 0);
- WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_in[0], 0);
- WRT_REG_DWORD((unsigned long __iomem *)®->rsp_q_out[0], 0);
+ WRT_REG_DWORD(®->req_q_out[0], 0);
+ WRT_REG_DWORD(®->rsp_q_in[0], 0);
+ WRT_REG_DWORD(®->rsp_q_out[0], 0);
}
static int
ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
}
-inline void
+static inline void
qla82xx_set_idc_version(scsi_qla_host_t *vha)
{
int idc_ver;
ql_log(ql_log_info, vha, 0x00a5,
"Firmware loaded successfully from binary blob.\n");
return QLA_SUCCESS;
- } else {
- ql_log(ql_log_fatal, vha, 0x00a6,
- "Firmware load failed for binary blob.\n");
- blob->fw = NULL;
- blob = NULL;
- goto fw_load_failed;
}
- return QLA_SUCCESS;
+
+ ql_log(ql_log_fatal, vha, 0x00a6,
+ "Firmware load failed for binary blob.\n");
+ blob->fw = NULL;
+ blob = NULL;
fw_load_failed:
return QLA_FUNCTION_FAILED;
"Do ROM fast read failed.\n");
goto done_read;
}
- dwptr[i] = __constant_cpu_to_le32(val);
+ dwptr[i] = cpu_to_le32(val);
}
done_read:
return dwptr;
{
int ret;
uint32_t liter;
- uint32_t sec_mask, rest_addr;
+ uint32_t rest_addr;
dma_addr_t optrom_dma;
void *optrom = NULL;
int page_mode = 0;
}
rest_addr = ha->fdt_block_size - 1;
- sec_mask = ~rest_addr;
ret = qla82xx_unprotect_flash(ha);
if (ret) {
{
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
- struct device_reg_82xx __iomem *reg;
uint32_t dbval;
/* Adjust ring index. */
} else
req->ring_ptr++;
- reg = &ha->iobase->isp82;
dbval = 0x04 | (ha->portnum << 5);
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
- qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
+ qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
else {
- WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
+ WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
wmb();
- while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
- WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
- dbval);
+ while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
+ WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
wmb();
}
}
loop_cnt = ocm_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
- r_value = RD_REG_DWORD((void __iomem *)
- (r_addr + ha->nx_pcibase));
+ r_value = RD_REG_DWORD(r_addr + ha->nx_pcibase);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
static void
qla8044_flash_unlock(scsi_qla_host_t *vha)
{
- int ret_val;
struct qla_hw_data *ha = vha->hw;
/* Reading FLASH_UNLOCK register unlocks the Flash */
qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
- ret_val = qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
+ qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
}
return buf;
}
-inline int
+static inline int
qla8044_need_reset(struct scsi_qla_host *vha)
{
uint32_t drv_state, drv_active;
}
for (i = 0; i < count; i++, addr += 16) {
- if (!((QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_QDR_NET,
+ if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
QLA8044_ADDR_QDR_NET_MAX)) ||
- (QLA8044_ADDR_IN_RANGE(addr, QLA8044_ADDR_DDR_NET,
+ (addr_in_range(addr, QLA8044_ADDR_DDR_NET,
QLA8044_ADDR_DDR_NET_MAX)))) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write_unlock;
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
}
-inline void
+static inline void
qla8044_set_rst_ready(struct scsi_qla_host *vha)
{
uint32_t drv_state;
uint32_t addr1, addr2, value, data, temp, wrVal;
uint8_t stride, stride2;
uint16_t count;
- uint32_t poll, mask, data_size, modify_mask;
+ uint32_t poll, mask, modify_mask;
uint32_t wait_count = 0;
uint32_t *data_ptr = *d_ptr;
poll = rddfe->poll;
mask = rddfe->mask;
modify_mask = rddfe->modify_mask;
- data_size = rddfe->data_size;
addr2 = addr1 + stride;
uint8_t stride1, stride2;
uint32_t addr3, addr4, addr5, addr6, addr7;
uint16_t count, loop_cnt;
- uint32_t poll, mask;
+ uint32_t mask;
uint32_t *data_ptr = *d_ptr;
struct qla8044_minidump_entry_rdmdio *rdmdio;
stride2 = rdmdio->stride_2;
count = rdmdio->count;
- poll = rdmdio->poll;
mask = rdmdio->mask;
value2 = rdmdio->value_2;
static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
- uint32_t addr1, addr2, value1, value2, poll, mask, r_value;
+ uint32_t addr1, addr2, value1, value2, poll, r_value;
uint32_t wait_count = 0;
struct qla8044_minidump_entry_pollwr *pollwr_hdr;
value2 = pollwr_hdr->value_2;
poll = pollwr_hdr->poll;
- mask = pollwr_hdr->mask;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &r_value);
#define QLA8044_PCI_QDR_NET_MAX ((unsigned long)0x043fffff)
/* PCI Windowing for DDR regions. */
-#define QLA8044_ADDR_IN_RANGE(addr, low, high) \
- (((addr) <= (high)) && ((addr) >= (low)))
+static inline bool addr_in_range(u64 addr, u64 low, u64 high)
+{
+ return addr <= high && addr >= low;
+}
/* Indirectly Mapped Registers */
#define QLA8044_FLASH_SPI_STATUS 0x2808E010
"SP reference-count to ZERO -- sp=%p cmd=%p.\n",
sp, GET_CMD_SP(sp));
if (ql2xextended_error_logging & ql_dbg_io)
- BUG();
+ WARN_ON(atomic_read(&sp->ref_count) == 0);
return;
}
if (!atomic_dec_and_test(&sp->ref_count))
}
ql_dbg(ql_dbg_taskm, vha, 0x8002,
- "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p\n",
- vha->host_no, id, lun, sp, cmd);
+ "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
+ vha->host_no, id, lun, sp, cmd, sp->handle);
/* Get a reference to the sp and drop the lock.*/
sp_get(sp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
rval = ha->isp_ops->abort_command(sp);
if (rval) {
- if (rval == QLA_FUNCTION_PARAMETER_ERROR) {
- /*
- * Decrement the ref_count since we can't find the
- * command
- */
- atomic_dec(&sp->ref_count);
+ if (rval == QLA_FUNCTION_PARAMETER_ERROR)
ret = SUCCESS;
- } else
+ else
ret = FAILED;
ql_dbg(ql_dbg_taskm, vha, 0x8003,
}
spin_lock_irqsave(&ha->hardware_lock, flags);
- /*
- * Clear the slot in the oustanding_cmds array if we can't find the
- * command to reclaim the resources.
- */
- if (rval == QLA_FUNCTION_PARAMETER_ERROR)
- vha->req->outstanding_cmds[sp->handle] = NULL;
sp->done(ha, sp, 0);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
+ case PCI_DEVICE_ID_QLOGIC_ISP2261:
+ ha->device_type |= DT_ISP2261;
+ ha->device_type |= DT_ZIO_SUPPORTED;
+ ha->device_type |= DT_FWI2;
+ ha->device_type |= DT_IIDMA;
+ ha->fw_srisc_address = RISC_START_ADDRESS_2400;
+ break;
}
if (IS_QLA82XX(ha))
pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
- pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271) {
+ pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
+ pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261) {
bars = pci_select_bars(pdev, IORESOURCE_MEM);
mem_only = 1;
ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
static void
qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
{
- struct Scsi_Host *scsi_host;
scsi_qla_host_t *vha;
unsigned long flags;
BUG_ON(base_vha->list.next == &ha->vp_list);
/* This assumes first entry in ha->vp_list is always base vha */
vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
- scsi_host = scsi_host_get(vha->host);
+ scsi_host_get(vha->host);
spin_unlock_irqrestore(&ha->vport_slock, flags);
mutex_unlock(&ha->vport_lock);
if (!do_login)
return;
+ set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+
if (fcport->login_retry == 0) {
fcport->login_retry = vha->hw->login_retry_count;
- set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
ql_dbg(ql_dbg_disc, vha, 0x2067,
"Port login retry %8phN, id = 0x%04x retry cnt=%d.\n",
static int
qla2x00_do_dpc(void *data)
{
- int rval;
scsi_qla_host_t *base_vha;
struct qla_hw_data *ha;
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags))) {
- rval = qla2x00_loop_resync(base_vha);
+ qla2x00_loop_resync(base_vha);
clear_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags);
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
{ 0 },
};
MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base,
- __constant_cpu_to_le16(0x1234), 100000);
+ cpu_to_le16(0x1234), 100000);
wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
if (stat != QLA_SUCCESS || wprot != 0x1234) {
/* Write enable. */
region = (struct qla_flt_region *)&flt[1];
ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
flt_addr << 2, OPTROM_BURST_SIZE);
- if (*wptr == __constant_cpu_to_le16(0xffff))
+ if (*wptr == cpu_to_le16(0xffff))
goto no_flash_data;
- if (flt->version != __constant_cpu_to_le16(1)) {
+ if (flt->version != cpu_to_le16(1)) {
ql_log(ql_log_warn, vha, 0x0047,
"Unsupported FLT detected: version=0x%x length=0x%x checksum=0x%x.\n",
le16_to_cpu(flt->version), le16_to_cpu(flt->length),
fdt = (struct qla_fdt_layout *)req->ring;
ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
ha->flt_region_fdt << 2, OPTROM_BURST_SIZE);
- if (*wptr == __constant_cpu_to_le16(0xffff))
+ if (*wptr == cpu_to_le16(0xffff))
goto no_flash_data;
if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
fdt->sig[3] != 'D')
ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
QLA82XX_IDC_PARAM_ADDR , 8);
- if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
+ if (*wptr == cpu_to_le32(0xffffffff)) {
ha->fcoe_dev_init_timeout = QLA82XX_ROM_DEV_INIT_TIMEOUT;
ha->fcoe_reset_timeout = QLA82XX_ROM_DRV_RESET_ACK_TIMEOUT;
} else {
ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr,
ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
- if (hdr.version == __constant_cpu_to_le16(0xffff))
+ if (hdr.version == cpu_to_le16(0xffff))
return;
- if (hdr.version != __constant_cpu_to_le16(1)) {
+ if (hdr.version != cpu_to_le16(1)) {
ql_dbg(ql_dbg_user, vha, 0x7090,
"Unsupported NPIV-Config "
"detected: version=0x%x entries=0x%x checksum=0x%x.\n",
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
nack->u.isp24.flags = ntfy->u.isp24.flags &
- __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
+ cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
}
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
nack->u.isp24.status = ntfy->u.isp24.status;
resp->sof_type = abts->sof_type;
resp->exchange_address = abts->exchange_address;
resp->fcp_hdr_le = abts->fcp_hdr_le;
- f_ctl = __constant_cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
+ f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
F_CTL_LAST_SEQ | F_CTL_END_SEQ |
F_CTL_SEQ_INITIATIVE);
p = (uint8_t *)&f_ctl;
ctio->entry_count = 1;
ctio->nport_handle = entry->nport_handle;
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
- ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio->vp_index = vha->vp_idx;
ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0];
ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1];
ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2];
ctio->exchange_addr = entry->exchange_addr_to_abort;
- ctio->u.status1.flags =
- __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
- CTIO7_FLAGS_TERMINATE);
+ ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
+ CTIO7_FLAGS_TERMINATE);
ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id);
/* Memory Barrier */
ctio->entry_count = 1;
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio->nport_handle = mcmd->sess->loop_id;
- ctio->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio->vp_index = ha->vp_idx;
ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
ctio->exchange_addr = atio->u.isp24.exchange_addr;
ctio->u.status1.flags = (atio->u.isp24.attr << 9) |
- __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
- CTIO7_FLAGS_SEND_STATUS);
+ cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
ctio->u.status1.ox_id = cpu_to_le16(temp);
ctio->u.status1.scsi_status =
- __constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
- ctio->u.status1.response_len = __constant_cpu_to_le16(8);
+ cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
+ ctio->u.status1.response_len = cpu_to_le16(8);
ctio->u.status1.sense_data[0] = resp_code;
/* Memory Barrier */
pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK;
pkt->nport_handle = prm->cmd->loop_id;
- pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
{
prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
(uint32_t)sizeof(ctio->u.status1.sense_data));
- ctio->u.status0.flags |=
- __constant_cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
+ ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 0)) {
- ctio->u.status0.flags |= __constant_cpu_to_le16(
+ ctio->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
"non GOOD status\n");
goto skip_explict_conf;
}
- ctio->u.status1.flags |= __constant_cpu_to_le16(
+ ctio->u.status1.flags |= cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
skip_explict_conf:
ctio->u.status1.flags &=
- ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
+ ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
ctio->u.status1.flags |=
- __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
+ cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
ctio->u.status1.scsi_status |=
- __constant_cpu_to_le16(SS_SENSE_LEN_VALID);
+ cpu_to_le16(SS_SENSE_LEN_VALID);
ctio->u.status1.sense_length =
cpu_to_le16(prm->sense_buffer_len);
for (i = 0; i < prm->sense_buffer_len/4; i++)
#endif
} else {
ctio->u.status1.flags &=
- ~__constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
+ ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
ctio->u.status1.flags |=
- __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
+ cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
ctio->u.status1.sense_length = 0;
memset(ctio->u.status1.sense_data, 0,
sizeof(ctio->u.status1.sense_data));
qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha)
{
uint32_t *cur_dsd;
- int sgc;
uint32_t transfer_length = 0;
uint32_t data_bytes;
uint32_t dif_bytes;
struct atio_from_isp *atio = &prm->cmd->atio;
uint16_t t16;
- sgc = 0;
ha = vha->hw;
pkt = (struct ctio_crc2_to_fw *)vha->req->ring_ptr;
pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK;
pkt->nport_handle = prm->cmd->loop_id;
- pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
/* Set transfer direction */
if (cmd->dma_data_direction == DMA_TO_DEVICE)
- pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN);
+ pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
- pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
+ pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
pkt->dseg_count = prm->tot_dsds;
crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
- crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0);
+ crc_ctx_pkt->guard_seed = cpu_to_le16(0);
/* Walks data segments */
- pkt->flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
+ pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
if (!bundling && prm->prot_seg_cnt) {
if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
pkt->u.status0.flags |=
- __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN |
+ cpu_to_le16(CTIO7_FLAGS_DATA_IN |
CTIO7_FLAGS_STATUS_MODE_0);
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
cpu_to_le16(prm.rq_result);
pkt->u.status0.residual =
cpu_to_le32(prm.residual);
- pkt->u.status0.flags |= __constant_cpu_to_le16(
+ pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_SEND_STATUS);
if (qlt_need_explicit_conf(ha, cmd, 0)) {
pkt->u.status0.flags |=
- __constant_cpu_to_le16(
+ cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
ctio->entry_count = 1;
ctio->entry_type = CTIO_TYPE7;
ctio->dseg_count = 0;
- ctio->u.status1.flags &= ~__constant_cpu_to_le16(
+ ctio->u.status1.flags &= ~cpu_to_le16(
CTIO7_FLAGS_DATA_IN);
/* Real finish is ctio_m1's finish */
pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
- pkt->u.status0.flags |= __constant_cpu_to_le16(
+ pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_DONT_RET_CTIO);
/* qlt_24xx_init_ctio_to_isp will correct
}
pkt = (struct ctio7_to_24xx *)prm.pkt;
- pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
+ pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
CTIO7_FLAGS_STATUS_MODE_0);
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
/* Update protection tag */
if (cmd->prot_sg_cnt) {
- uint32_t i, j = 0, k = 0, num_ent;
+ uint32_t i, k = 0, num_ent;
struct scatterlist *sg, *sgl;
k += num_ent;
continue;
}
- j = blocks_done - k - 1;
k = blocks_done;
break;
}
ctio24 = (struct ctio7_to_24xx *)pkt;
ctio24->entry_type = CTIO_TYPE7;
ctio24->nport_handle = cmd ? cmd->loop_id : CTIO7_NHANDLE_UNRECOGNIZED;
- ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio24->vp_index = vha->vp_idx;
ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
ctio24->u.status1.flags = (atio->u.isp24.attr << 9) |
- __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
+ cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
CTIO7_FLAGS_TERMINATE);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
ctio24->u.status1.ox_id = cpu_to_le16(temp);
if (ctio != NULL) {
struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
term = !(c->flags &
- __constant_cpu_to_le16(OF_TERM_EXCH));
+ cpu_to_le16(OF_TERM_EXCH));
} else
term = 1;
{
struct qla_hw_data *ha = vha->hw;
struct se_cmd *se_cmd;
- const struct target_core_fabric_ops *tfo;
struct qla_tgt_cmd *cmd;
if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
return;
se_cmd = &cmd->se_cmd;
- tfo = se_cmd->se_tfo;
cmd->cmd_sent_to_fw = 0;
qlt_unmap_sg(vha, cmd);
if (cmd->state == QLA_TGT_STATE_PROCESSED) {
cmd->cmd_flags |= BIT_12;
} else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
- int rx_status = 0;
-
cmd->state = QLA_TGT_STATE_DATA_IN;
- if (unlikely(status != CTIO_SUCCESS))
- rx_status = -EIO;
- else
+ if (status == CTIO_SUCCESS)
cmd->write_data_transferred = 1;
ha->tgt.tgt_ops->handle_data(cmd);
struct qla_tgt *tgt;
struct qla_tgt_sess *sess;
uint32_t lun, unpacked_lun;
- int lun_size, fn;
+ int fn;
tgt = vha->vha_tgt.qla_tgt;
lun = a->u.isp24.fcp_cmnd.lun;
- lun_size = sizeof(a->u.isp24.fcp_cmnd.lun);
fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
a->u.isp24.fcp_hdr.s_id);
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
+#ifndef __CHECKER__
if (!ha_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
+#endif
qlt_send_notify_ack(vha, (void *)&imm->imm_ntfy, 0, 0, 0,
NOTIFY_ACK_SRR_FLAGS_REJECT,
NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
+#ifndef __CHECKER__
if (!ha_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+#endif
kfree(imm);
}
ctio24 = (struct ctio7_to_24xx *)pkt;
ctio24->entry_type = CTIO_TYPE7;
ctio24->nport_handle = sess->loop_id;
- ctio24->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT);
+ ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio24->vp_index = vha->vp_idx;
ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
ctio24->u.status1.flags = (atio->u.isp24.attr << 9) |
- __constant_cpu_to_le16(
+ cpu_to_le16(
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
CTIO7_FLAGS_DONT_RET_CTIO);
/*
struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
int rc;
if (atio->u.isp2x.status !=
- __constant_cpu_to_le16(ATIO_CDB_VALID)) {
+ cpu_to_le16(ATIO_CDB_VALID)) {
ql_dbg(ql_dbg_tgt, vha, 0xe05e,
"qla_target(%d): ATIO with error "
"status %x received\n", vha->vp_idx,
le16_to_cpu(entry->u.isp2x.status));
tgt->notify_ack_expected--;
if (entry->u.isp2x.status !=
- __constant_cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
+ cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
ql_dbg(ql_dbg_tgt, vha, 0xe061,
"qla_target(%d): NOTIFY_ACK "
"failed %x\n", vha->vp_idx,
uint8_t *s_id = NULL; /* to hide compiler warnings */
int rc;
uint32_t lun, unpacked_lun;
- int lun_size, fn;
+ int fn;
void *iocb;
spin_lock_irqsave(&ha->hardware_lock, flags);
iocb = a;
lun = a->u.isp24.fcp_cmnd.lun;
- lun_size = sizeof(lun);
fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun);
ha->tgt.saved_set = 1;
}
- nv->exchange_count = __constant_cpu_to_le16(0xFFFF);
+ nv->exchange_count = cpu_to_le16(0xFFFF);
/* Enable target mode */
- nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_4);
+ nv->firmware_options_1 |= cpu_to_le32(BIT_4);
/* Disable ini mode, if requested */
if (!qla_ini_mode_enabled(vha))
- nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_5);
+ nv->firmware_options_1 |= cpu_to_le32(BIT_5);
/* Disable Full Login after LIP */
- nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Enable initial LIP */
- nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9);
+ nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
if (ql2xtgt_tape_enable)
/* Enable FC Tape support */
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
/* Disable Full Login after LIP */
- nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ nv->host_p &= cpu_to_le32(~BIT_10);
/* Enable target PRLI control */
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_14);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_14);
} else {
if (ha->tgt.saved_set) {
nv->exchange_count = ha->tgt.saved_exchange_count;
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_8);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_8);
} else {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
- nv->firmware_options_2 &= ~__constant_cpu_to_le32(BIT_8);
+ nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
}
}
if (ha->tgt.node_name_set) {
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
- icb->firmware_options_1 |= __constant_cpu_to_le32(BIT_14);
+ icb->firmware_options_1 |= cpu_to_le32(BIT_14);
}
}
ha->tgt.saved_set = 1;
}
- nv->exchange_count = __constant_cpu_to_le16(0xFFFF);
+ nv->exchange_count = cpu_to_le16(0xFFFF);
/* Enable target mode */
- nv->firmware_options_1 |= __constant_cpu_to_le32(BIT_4);
+ nv->firmware_options_1 |= cpu_to_le32(BIT_4);
/* Disable ini mode, if requested */
if (!qla_ini_mode_enabled(vha))
- nv->firmware_options_1 |=
- __constant_cpu_to_le32(BIT_5);
+ nv->firmware_options_1 |= cpu_to_le32(BIT_5);
/* Disable Full Login after LIP */
- nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Enable initial LIP */
- nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9);
+ nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
if (ql2xtgt_tape_enable)
/* Enable FC tape support */
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
/* Disable Full Login after LIP */
- nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ nv->host_p &= cpu_to_le32(~BIT_10);
/* Enable target PRLI control */
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_14);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_14);
} else {
if (ha->tgt.saved_set) {
nv->exchange_count = ha->tgt.saved_exchange_count;
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
- nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_8);
+ nv->firmware_options_2 |= cpu_to_le32(BIT_8);
} else {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
- nv->firmware_options_2 &= ~__constant_cpu_to_le32(BIT_8);
+ nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
}
}
if (ha->tgt.node_name_set) {
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
- icb->firmware_options_1 |= __constant_cpu_to_le32(BIT_14);
+ icb->firmware_options_1 |= cpu_to_le32(BIT_14);
}
}
}
static inline void
-qla27xx_read8(void *window, void *buf, ulong *len)
+qla27xx_read8(void __iomem *window, void *buf, ulong *len)
{
uint8_t value = ~0;
if (buf) {
- value = RD_REG_BYTE((__iomem void *)window);
+ value = RD_REG_BYTE(window);
}
qla27xx_insert32(value, buf, len);
}
static inline void
-qla27xx_read16(void *window, void *buf, ulong *len)
+qla27xx_read16(void __iomem *window, void *buf, ulong *len)
{
uint16_t value = ~0;
if (buf) {
- value = RD_REG_WORD((__iomem void *)window);
+ value = RD_REG_WORD(window);
}
qla27xx_insert32(value, buf, len);
}
static inline void
-qla27xx_read32(void *window, void *buf, ulong *len)
+qla27xx_read32(void __iomem *window, void *buf, ulong *len)
{
uint32_t value = ~0;
if (buf) {
- value = RD_REG_DWORD((__iomem void *)window);
+ value = RD_REG_DWORD(window);
}
qla27xx_insert32(value, buf, len);
}
-static inline void (*qla27xx_read_vector(uint width))(void *, void *, ulong *)
+static inline void (*qla27xx_read_vector(uint width))(void __iomem*, void *, ulong *)
{
return
(width == 1) ? qla27xx_read8 :
qla27xx_read_reg(__iomem struct device_reg_24xx *reg,
uint offset, void *buf, ulong *len)
{
- void *window = (void *)reg + offset;
+ void __iomem *window = (void __iomem *)reg + offset;
qla27xx_read32(window, buf, len);
}
uint32_t addr, uint offset, uint count, uint width, void *buf,
ulong *len)
{
- void *window = (void *)reg + offset;
- void (*readn)(void *, void *, ulong *) = qla27xx_read_vector(width);
+ void __iomem *window = (void __iomem *)reg + offset;
+ void (*readn)(void __iomem*, void *, ulong *) = qla27xx_read_vector(width);
qla27xx_write_reg(reg, IOBASE_ADDR, addr, buf);
while (count--) {
qla27xx_driver_info(struct qla27xx_fwdt_template *tmp)
{
uint8_t v[] = { 0, 0, 0, 0, 0, 0 };
- int rval = 0;
- rval = sscanf(qla2x00_version_str, "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu",
+ sscanf(qla2x00_version_str, "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu",
v+0, v+1, v+2, v+3, v+4, v+5);
tmp->driver_info[0] = v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0];
{
ulong flags = 0;
+#ifndef __CHECKER__
if (!hardware_locked)
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+#endif
if (!vha->hw->fw_dump)
ql_log(ql_log_warn, vha, 0xd01e, "fwdump buffer missing.\n");
else
qla27xx_execute_fwdt_template(vha);
+#ifndef __CHECKER__
if (!hardware_locked)
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+#endif
}
/*
* Driver version
*/
-#define QLA2XXX_VERSION "8.07.00.18-k"
+#define QLA2XXX_VERSION "8.07.00.26-k"
#define QLA_DRIVER_MAJOR_VER 8
#define QLA_DRIVER_MINOR_VER 7
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
{
+ if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
+ struct qla_tgt_cmd *cmd = container_of(se_cmd,
+ struct qla_tgt_cmd, se_cmd);
+ return cmd->state;
+ }
+
return 0;
}
evt_type = SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED;
sdev_printk(KERN_WARNING, sdev,
"Mode parameters changed");
+ } else if (sshdr->asc == 0x2a && sshdr->ascq == 0x06) {
+ evt_type = SDEV_EVT_ALUA_STATE_CHANGE_REPORTED;
+ sdev_printk(KERN_WARNING, sdev,
+ "Asymmetric access state changed");
} else if (sshdr->asc == 0x2a && sshdr->ascq == 0x09) {
evt_type = SDEV_EVT_CAPACITY_CHANGE_REPORTED;
sdev_printk(KERN_WARNING, sdev,
struct Scsi_Host *shost;
int rtn;
+ /*
+ * If SCSI_EH_ABORT_SCHEDULED has been set, it is timeout IO,
+ * should not get sense.
+ */
list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
if ((scmd->eh_eflags & SCSI_EH_CANCEL_CMD) ||
+ (scmd->eh_eflags & SCSI_EH_ABORT_SCHEDULED) ||
SCSI_SENSE_VALID(scmd))
continue;
unsigned char cmd[12];
int use_10_for_ms;
int header_length;
- int result;
+ int result, retry_count = retries;
struct scsi_sense_hdr my_sshdr;
memset(data, 0, sizeof(*data));
data->block_descriptor_length = buffer[3];
}
data->header_length = header_length;
+ } else if ((status_byte(result) == CHECK_CONDITION) &&
+ scsi_sense_valid(sshdr) &&
+ sshdr->sense_key == UNIT_ATTENTION && retry_count) {
+ retry_count--;
+ goto retry;
}
return result;
case SDEV_EVT_LUN_CHANGE_REPORTED:
envp[idx++] = "SDEV_UA=REPORTED_LUNS_DATA_HAS_CHANGED";
break;
+ case SDEV_EVT_ALUA_STATE_CHANGE_REPORTED:
+ envp[idx++] = "SDEV_UA=ASYMMETRIC_ACCESS_STATE_CHANGED";
+ break;
default:
/* do nothing */
break;
case SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED:
case SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED:
case SDEV_EVT_LUN_CHANGE_REPORTED:
+ case SDEV_EVT_ALUA_STATE_CHANGE_REPORTED:
default:
/* do nothing */
break;
session->transport = transport;
session->creator = -1;
session->recovery_tmo = 120;
+ session->recovery_tmo_sysfs_override = false;
session->state = ISCSI_SESSION_FREE;
INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout);
INIT_LIST_HEAD(&session->sess_list);
switch (ev->u.set_param.param) {
case ISCSI_PARAM_SESS_RECOVERY_TMO:
sscanf(data, "%d", &value);
- session->recovery_tmo = value;
+ if (!session->recovery_tmo_sysfs_override)
+ session->recovery_tmo = value;
break;
default:
err = transport->set_param(conn, ev->u.set_param.param,
if ((session->state == ISCSI_SESSION_FREE) || \
(session->state == ISCSI_SESSION_FAILED)) \
return -EBUSY; \
- if (strncmp(buf, "off", 3) == 0) \
+ if (strncmp(buf, "off", 3) == 0) { \
session->field = -1; \
- else { \
+ session->field##_sysfs_override = true; \
+ } else { \
val = simple_strtoul(buf, &cp, 0); \
if (*cp != '\0' && *cp != '\n') \
return -EINVAL; \
session->field = val; \
+ session->field##_sysfs_override = true; \
} \
return count; \
}
static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR, \
show_priv_session_##field, \
store_priv_session_##field)
+
iscsi_priv_session_rw_attr(recovery_tmo, "%d");
static struct attribute *iscsi_session_attrs[] = {
static struct class st_sysfs_class;
static const struct attribute_group *st_dev_groups[];
+static const struct attribute_group *st_drv_groups[];
MODULE_AUTHOR("Kai Makisara");
MODULE_DESCRIPTION("SCSI tape (st) driver");
static int st_probe(struct device *);
static int st_remove(struct device *);
-static int do_create_sysfs_files(void);
-static void do_remove_sysfs_files(void);
-
static struct scsi_driver st_template = {
.gendrv = {
.name = "st",
.owner = THIS_MODULE,
.probe = st_probe,
.remove = st_remove,
+ .groups = st_drv_groups,
},
};
if (err)
goto err_chrdev;
- err = do_create_sysfs_files();
- if (err)
- goto err_scsidrv;
-
return 0;
-err_scsidrv:
- scsi_unregister_driver(&st_template.gendrv);
err_chrdev:
unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
ST_MAX_TAPE_ENTRIES);
static void __exit exit_st(void)
{
- do_remove_sysfs_files();
scsi_unregister_driver(&st_template.gendrv);
unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
ST_MAX_TAPE_ENTRIES);
class_unregister(&st_sysfs_class);
+ idr_destroy(&st_index_idr);
printk(KERN_INFO "st: Unloaded.\n");
}
/* The sysfs driver interface. Read-only at the moment */
-static ssize_t st_try_direct_io_show(struct device_driver *ddp, char *buf)
+static ssize_t try_direct_io_show(struct device_driver *ddp, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", try_direct_io);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", try_direct_io);
}
-static DRIVER_ATTR(try_direct_io, S_IRUGO, st_try_direct_io_show, NULL);
+static DRIVER_ATTR_RO(try_direct_io);
-static ssize_t st_fixed_buffer_size_show(struct device_driver *ddp, char *buf)
+static ssize_t fixed_buffer_size_show(struct device_driver *ddp, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", st_fixed_buffer_size);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", st_fixed_buffer_size);
}
-static DRIVER_ATTR(fixed_buffer_size, S_IRUGO, st_fixed_buffer_size_show, NULL);
+static DRIVER_ATTR_RO(fixed_buffer_size);
-static ssize_t st_max_sg_segs_show(struct device_driver *ddp, char *buf)
+static ssize_t max_sg_segs_show(struct device_driver *ddp, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", st_max_sg_segs);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", st_max_sg_segs);
}
-static DRIVER_ATTR(max_sg_segs, S_IRUGO, st_max_sg_segs_show, NULL);
+static DRIVER_ATTR_RO(max_sg_segs);
-static ssize_t st_version_show(struct device_driver *ddd, char *buf)
+static ssize_t version_show(struct device_driver *ddd, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "[%s]\n", verstr);
+ return scnprintf(buf, PAGE_SIZE, "[%s]\n", verstr);
}
-static DRIVER_ATTR(version, S_IRUGO, st_version_show, NULL);
-
-static int do_create_sysfs_files(void)
-{
- struct device_driver *sysfs = &st_template.gendrv;
- int err;
+static DRIVER_ATTR_RO(version);
- err = driver_create_file(sysfs, &driver_attr_try_direct_io);
- if (err)
- return err;
- err = driver_create_file(sysfs, &driver_attr_fixed_buffer_size);
- if (err)
- goto err_try_direct_io;
- err = driver_create_file(sysfs, &driver_attr_max_sg_segs);
- if (err)
- goto err_attr_fixed_buf;
- err = driver_create_file(sysfs, &driver_attr_version);
- if (err)
- goto err_attr_max_sg;
-
- return 0;
-
-err_attr_max_sg:
- driver_remove_file(sysfs, &driver_attr_max_sg_segs);
-err_attr_fixed_buf:
- driver_remove_file(sysfs, &driver_attr_fixed_buffer_size);
-err_try_direct_io:
- driver_remove_file(sysfs, &driver_attr_try_direct_io);
- return err;
-}
-
-static void do_remove_sysfs_files(void)
-{
- struct device_driver *sysfs = &st_template.gendrv;
-
- driver_remove_file(sysfs, &driver_attr_version);
- driver_remove_file(sysfs, &driver_attr_max_sg_segs);
- driver_remove_file(sysfs, &driver_attr_fixed_buffer_size);
- driver_remove_file(sysfs, &driver_attr_try_direct_io);
-}
+static struct attribute *st_drv_attrs[] = {
+ &driver_attr_try_direct_io.attr,
+ &driver_attr_fixed_buffer_size.attr,
+ &driver_attr_max_sg_segs.attr,
+ &driver_attr_version.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(st_drv);
/* The sysfs simple class interface */
static ssize_t
* V1 RC > 2008/1/31: 2.0
* Win7: 4.2
* Win8: 5.1
+ * Win8.1: 6.0
+ * Win10: 6.2
*/
+#define VMSTOR_PROTO_VERSION(MAJOR_, MINOR_) ((((MAJOR_) & 0xff) << 8) | \
+ (((MINOR_) & 0xff)))
-#define VMSTOR_WIN7_MAJOR 4
-#define VMSTOR_WIN7_MINOR 2
-
-#define VMSTOR_WIN8_MAJOR 5
-#define VMSTOR_WIN8_MINOR 1
-
+#define VMSTOR_PROTO_VERSION_WIN6 VMSTOR_PROTO_VERSION(2, 0)
+#define VMSTOR_PROTO_VERSION_WIN7 VMSTOR_PROTO_VERSION(4, 2)
+#define VMSTOR_PROTO_VERSION_WIN8 VMSTOR_PROTO_VERSION(5, 1)
+#define VMSTOR_PROTO_VERSION_WIN8_1 VMSTOR_PROTO_VERSION(6, 0)
+#define VMSTOR_PROTO_VERSION_WIN10 VMSTOR_PROTO_VERSION(6, 2)
/* Packet structure describing virtual storage requests. */
enum vstor_packet_operation {
/*
* Sense buffer size changed in win8; have a run-time
- * variable to track the size we should use.
+ * variable to track the size we should use. This value will
+ * likely change during protocol negotiation but it is valid
+ * to start by assuming pre-Win8.
*/
-static int sense_buffer_size;
+static int sense_buffer_size = PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE;
/*
- * The size of the vmscsi_request has changed in win8. The
- * additional size is because of new elements added to the
- * structure. These elements are valid only when we are talking
- * to a win8 host.
- * Track the correction to size we need to apply.
- */
-
-static int vmscsi_size_delta;
-static int vmstor_current_major;
-static int vmstor_current_minor;
+ * The storage protocol version is determined during the
+ * initial exchange with the host. It will indicate which
+ * storage functionality is available in the host.
+*/
+static int vmstor_proto_version;
struct vmscsi_win8_extension {
/*
/*
+ * The size of the vmscsi_request has changed in win8. The
+ * additional size is because of new elements added to the
+ * structure. These elements are valid only when we are talking
+ * to a win8 host.
+ * Track the correction to size we need to apply. This value
+ * will likely change during protocol negotiation but it is
+ * valid to start by assuming pre-Win8.
+ */
+static int vmscsi_size_delta = sizeof(struct vmscsi_win8_extension);
+
+/*
+ * The list of storage protocols in order of preference.
+ */
+struct vmstor_protocol {
+ int protocol_version;
+ int sense_buffer_size;
+ int vmscsi_size_delta;
+};
+
+
+static const struct vmstor_protocol vmstor_protocols[] = {
+ {
+ VMSTOR_PROTO_VERSION_WIN10,
+ POST_WIN7_STORVSC_SENSE_BUFFER_SIZE,
+ 0
+ },
+ {
+ VMSTOR_PROTO_VERSION_WIN8_1,
+ POST_WIN7_STORVSC_SENSE_BUFFER_SIZE,
+ 0
+ },
+ {
+ VMSTOR_PROTO_VERSION_WIN8,
+ POST_WIN7_STORVSC_SENSE_BUFFER_SIZE,
+ 0
+ },
+ {
+ VMSTOR_PROTO_VERSION_WIN7,
+ PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE,
+ sizeof(struct vmscsi_win8_extension),
+ },
+ {
+ VMSTOR_PROTO_VERSION_WIN6,
+ PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE,
+ sizeof(struct vmscsi_win8_extension),
+ }
+};
+
+
+/*
* This structure is sent during the intialization phase to get the different
* properties of the channel.
*/
struct storvsc_scan_work *wrk;
struct Scsi_Host *host;
struct scsi_device *sdev;
- unsigned long flags;
wrk = container_of(work, struct storvsc_scan_work, work);
host = wrk->host;
* may have been removed this way.
*/
mutex_lock(&host->scan_mutex);
- spin_lock_irqsave(host->host_lock, flags);
- list_for_each_entry(sdev, &host->__devices, siblings) {
- spin_unlock_irqrestore(host->host_lock, flags);
+ shost_for_each_device(sdev, host)
scsi_test_unit_ready(sdev, 1, 1, NULL);
- spin_lock_irqsave(host->host_lock, flags);
- continue;
- }
- spin_unlock_irqrestore(host->host_lock, flags);
mutex_unlock(&host->scan_mutex);
/*
* Now scan the host to discover LUNs that may have been added.
kfree(wrk);
}
-/*
- * Major/minor macros. Minor version is in LSB, meaning that earlier flat
- * version numbers will be interpreted as "0.x" (i.e., 1 becomes 0.1).
- */
-
-static inline u16 storvsc_get_version(u8 major, u8 minor)
-{
- u16 version;
-
- version = ((major << 8) | minor);
- return version;
-}
/*
* We can get incoming messages from the host that are not in response to
struct storvsc_device *stor_device;
struct storvsc_cmd_request *request;
struct vstor_packet *vstor_packet;
- int ret, t;
+ int ret, t, i;
int max_chns;
bool process_sub_channels = false;
}
if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
- vstor_packet->status != 0)
+ vstor_packet->status != 0) {
+ ret = -EINVAL;
goto cleanup;
+ }
- /* reuse the packet for version range supported */
- memset(vstor_packet, 0, sizeof(struct vstor_packet));
- vstor_packet->operation = VSTOR_OPERATION_QUERY_PROTOCOL_VERSION;
- vstor_packet->flags = REQUEST_COMPLETION_FLAG;
+ for (i = 0; i < ARRAY_SIZE(vmstor_protocols); i++) {
+ /* reuse the packet for version range supported */
+ memset(vstor_packet, 0, sizeof(struct vstor_packet));
+ vstor_packet->operation =
+ VSTOR_OPERATION_QUERY_PROTOCOL_VERSION;
+ vstor_packet->flags = REQUEST_COMPLETION_FLAG;
- vstor_packet->version.major_minor =
- storvsc_get_version(vmstor_current_major, vmstor_current_minor);
+ vstor_packet->version.major_minor =
+ vmstor_protocols[i].protocol_version;
- /*
- * The revision number is only used in Windows; set it to 0.
- */
- vstor_packet->version.revision = 0;
+ /*
+ * The revision number is only used in Windows; set it to 0.
+ */
+ vstor_packet->version.revision = 0;
- ret = vmbus_sendpacket(device->channel, vstor_packet,
+ ret = vmbus_sendpacket(device->channel, vstor_packet,
(sizeof(struct vstor_packet) -
vmscsi_size_delta),
(unsigned long)request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
- if (ret != 0)
- goto cleanup;
+ if (ret != 0)
+ goto cleanup;
- t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
- if (t == 0) {
- ret = -ETIMEDOUT;
- goto cleanup;
+ t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
+ if (t == 0) {
+ ret = -ETIMEDOUT;
+ goto cleanup;
+ }
+
+ if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO) {
+ ret = -EINVAL;
+ goto cleanup;
+ }
+
+ if (vstor_packet->status == 0) {
+ vmstor_proto_version =
+ vmstor_protocols[i].protocol_version;
+
+ sense_buffer_size =
+ vmstor_protocols[i].sense_buffer_size;
+
+ vmscsi_size_delta =
+ vmstor_protocols[i].vmscsi_size_delta;
+
+ break;
+ }
}
- if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
- vstor_packet->status != 0)
+ if (vstor_packet->status != 0) {
+ ret = -EINVAL;
goto cleanup;
+ }
memset(vstor_packet, 0, sizeof(struct vstor_packet));
}
if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
- vstor_packet->status != 0)
+ vstor_packet->status != 0) {
+ ret = -EINVAL;
goto cleanup;
+ }
/*
* Check to see if multi-channel support is there.
* support multi-channel.
*/
max_chns = vstor_packet->storage_channel_properties.max_channel_cnt;
- if ((vmbus_proto_version != VERSION_WIN7) &&
- (vmbus_proto_version != VERSION_WS2008)) {
+ if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN8) {
if (vstor_packet->storage_channel_properties.flags &
STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL)
process_sub_channels = true;
}
if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
- vstor_packet->status != 0)
+ vstor_packet->status != 0) {
+ ret = -EINVAL;
goto cleanup;
+ }
if (process_sub_channels)
handle_multichannel_storage(device, max_chns);
/*
* If the host is WIN8 or WIN8 R2, claim conformance to SPC-3
- * if the device is a MSFT virtual device.
+ * if the device is a MSFT virtual device. If the host is
+ * WIN10 or newer, allow write_same.
*/
if (!strncmp(sdevice->vendor, "Msft", 4)) {
- switch (vmbus_proto_version) {
- case VERSION_WIN8:
- case VERSION_WIN8_1:
+ switch (vmstor_proto_version) {
+ case VMSTOR_PROTO_VERSION_WIN8:
+ case VMSTOR_PROTO_VERSION_WIN8_1:
sdevice->scsi_level = SCSI_SPC_3;
break;
}
+
+ if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN10)
+ sdevice->no_write_same = 0;
}
return 0;
u32 payload_sz;
u32 length;
- if (vmstor_current_major <= VMSTOR_WIN8_MAJOR) {
+ if (vmstor_proto_version <= VMSTOR_PROTO_VERSION_WIN8) {
/*
* On legacy hosts filter unimplemented commands.
* Future hosts are expected to correctly handle
vm_srb->data_in = READ_TYPE;
vm_srb->win8_extension.srb_flags |= SRB_FLAGS_DATA_IN;
break;
- default:
+ case DMA_NONE:
vm_srb->data_in = UNKNOWN_TYPE;
vm_srb->win8_extension.srb_flags |= SRB_FLAGS_NO_DATA_TRANSFER;
break;
+ default:
+ /*
+ * This is DMA_BIDIRECTIONAL or something else we are never
+ * supposed to see here.
+ */
+ WARN(1, "Unexpected data direction: %d\n",
+ scmnd->sc_data_direction);
+ return -EINVAL;
}
* set state to properly communicate with the host.
*/
- switch (vmbus_proto_version) {
- case VERSION_WS2008:
- case VERSION_WIN7:
- sense_buffer_size = PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE;
- vmscsi_size_delta = sizeof(struct vmscsi_win8_extension);
- vmstor_current_major = VMSTOR_WIN7_MAJOR;
- vmstor_current_minor = VMSTOR_WIN7_MINOR;
+ if (vmbus_proto_version < VERSION_WIN8) {
max_luns_per_target = STORVSC_IDE_MAX_LUNS_PER_TARGET;
max_targets = STORVSC_IDE_MAX_TARGETS;
max_channels = STORVSC_IDE_MAX_CHANNELS;
- break;
- default:
- sense_buffer_size = POST_WIN7_STORVSC_SENSE_BUFFER_SIZE;
- vmscsi_size_delta = 0;
- vmstor_current_major = VMSTOR_WIN8_MAJOR;
- vmstor_current_minor = VMSTOR_WIN8_MINOR;
+ } else {
max_luns_per_target = STORVSC_MAX_LUNS_PER_TARGET;
max_targets = STORVSC_MAX_TARGETS;
max_channels = STORVSC_MAX_CHANNELS;
* VCPUs in the guest.
*/
max_sub_channels = (num_cpus / storvsc_vcpus_per_sub_channel);
- break;
}
scsi_driver.can_queue = (max_outstanding_req_per_channel *
SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED, /* 38 07 UA reported */
SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED, /* 2A 01 UA reported */
SDEV_EVT_LUN_CHANGE_REPORTED, /* 3F 0E UA reported */
+ SDEV_EVT_ALUA_STATE_CHANGE_REPORTED, /* 2A 06 UA reported */
SDEV_EVT_FIRST = SDEV_EVT_MEDIA_CHANGE,
- SDEV_EVT_LAST = SDEV_EVT_LUN_CHANGE_REPORTED,
+ SDEV_EVT_LAST = SDEV_EVT_ALUA_STATE_CHANGE_REPORTED,
SDEV_EVT_MAXBITS = SDEV_EVT_LAST + 1
};
/* recovery fields */
int recovery_tmo;
+ bool recovery_tmo_sysfs_override;
struct delayed_work recovery_work;
unsigned int target_id;
header-y += scsi_bsg_fc.h
header-y += scsi_netlink.h
header-y += scsi_netlink_fc.h
+header-y += cxlflash_ioctl.h
--- /dev/null
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
+ * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2015 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _CXLFLASH_IOCTL_H
+#define _CXLFLASH_IOCTL_H
+
+#include <linux/types.h>
+
+/*
+ * Structure and flag definitions CXL Flash superpipe ioctls
+ */
+
+#define DK_CXLFLASH_VERSION_0 0
+
+struct dk_cxlflash_hdr {
+ __u16 version; /* Version data */
+ __u16 rsvd[3]; /* Reserved for future use */
+ __u64 flags; /* Input flags */
+ __u64 return_flags; /* Returned flags */
+};
+
+/*
+ * Notes:
+ * -----
+ * The 'context_id' field of all ioctl structures contains the context
+ * identifier for a context in the lower 32-bits (upper 32-bits are not
+ * to be used when identifying a context to the AFU). That said, the value
+ * in its entirety (all 64-bits) is to be treated as an opaque cookie and
+ * should be presented as such when issuing ioctls.
+ *
+ * For DK_CXLFLASH_ATTACH ioctl, user specifies read/write access
+ * permissions via the O_RDONLY, O_WRONLY, and O_RDWR flags defined in
+ * the fcntl.h header file.
+ */
+#define DK_CXLFLASH_ATTACH_REUSE_CONTEXT 0x8000000000000000ULL
+
+struct dk_cxlflash_attach {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 num_interrupts; /* Requested number of interrupts */
+ __u64 context_id; /* Returned context */
+ __u64 mmio_size; /* Returned size of MMIO area */
+ __u64 block_size; /* Returned block size, in bytes */
+ __u64 adap_fd; /* Returned adapter file descriptor */
+ __u64 last_lba; /* Returned last LBA on the device */
+ __u64 max_xfer; /* Returned max transfer size, blocks */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+struct dk_cxlflash_detach {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context to detach */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+struct dk_cxlflash_udirect {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context to own physical resources */
+ __u64 rsrc_handle; /* Returned resource handle */
+ __u64 last_lba; /* Returned last LBA on the device */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+#define DK_CXLFLASH_UVIRTUAL_NEED_WRITE_SAME 0x8000000000000000ULL
+
+struct dk_cxlflash_uvirtual {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context to own virtual resources */
+ __u64 lun_size; /* Requested size, in 4K blocks */
+ __u64 rsrc_handle; /* Returned resource handle */
+ __u64 last_lba; /* Returned last LBA of LUN */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+struct dk_cxlflash_release {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context owning resources */
+ __u64 rsrc_handle; /* Resource handle to release */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+struct dk_cxlflash_resize {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context owning resources */
+ __u64 rsrc_handle; /* Resource handle of LUN to resize */
+ __u64 req_size; /* New requested size, in 4K blocks */
+ __u64 last_lba; /* Returned last LBA of LUN */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+struct dk_cxlflash_clone {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id_src; /* Context to clone from */
+ __u64 context_id_dst; /* Context to clone to */
+ __u64 adap_fd_src; /* Source context adapter fd */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+#define DK_CXLFLASH_VERIFY_SENSE_LEN 18
+#define DK_CXLFLASH_VERIFY_HINT_SENSE 0x8000000000000000ULL
+
+struct dk_cxlflash_verify {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 context_id; /* Context owning resources to verify */
+ __u64 rsrc_handle; /* Resource handle of LUN */
+ __u64 hint; /* Reasons for verify */
+ __u64 last_lba; /* Returned last LBA of device */
+ __u8 sense_data[DK_CXLFLASH_VERIFY_SENSE_LEN]; /* SCSI sense data */
+ __u8 pad[6]; /* Pad to next 8-byte boundary */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+#define DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET 0x8000000000000000ULL
+
+struct dk_cxlflash_recover_afu {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u64 reason; /* Reason for recovery request */
+ __u64 context_id; /* Context to recover / updated ID */
+ __u64 mmio_size; /* Returned size of MMIO area */
+ __u64 adap_fd; /* Returned adapter file descriptor */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN 16
+#define DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE 0x8000000000000000ULL
+#define DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE 0x4000000000000000ULL
+#define DK_CXLFLASH_MANAGE_LUN_ALL_PORTS_ACCESSIBLE 0x2000000000000000ULL
+
+struct dk_cxlflash_manage_lun {
+ struct dk_cxlflash_hdr hdr; /* Common fields */
+ __u8 wwid[DK_CXLFLASH_MANAGE_LUN_WWID_LEN]; /* Page83 WWID, NAA-6 */
+ __u64 reserved[8]; /* Rsvd, future use */
+};
+
+union cxlflash_ioctls {
+ struct dk_cxlflash_attach attach;
+ struct dk_cxlflash_detach detach;
+ struct dk_cxlflash_udirect udirect;
+ struct dk_cxlflash_uvirtual uvirtual;
+ struct dk_cxlflash_release release;
+ struct dk_cxlflash_resize resize;
+ struct dk_cxlflash_clone clone;
+ struct dk_cxlflash_verify verify;
+ struct dk_cxlflash_recover_afu recover_afu;
+ struct dk_cxlflash_manage_lun manage_lun;
+};
+
+#define MAX_CXLFLASH_IOCTL_SZ (sizeof(union cxlflash_ioctls))
+
+#define CXL_MAGIC 0xCA
+#define CXL_IOWR(_n, _s) _IOWR(CXL_MAGIC, _n, struct _s)
+
+#define DK_CXLFLASH_ATTACH CXL_IOWR(0x80, dk_cxlflash_attach)
+#define DK_CXLFLASH_USER_DIRECT CXL_IOWR(0x81, dk_cxlflash_udirect)
+#define DK_CXLFLASH_RELEASE CXL_IOWR(0x82, dk_cxlflash_release)
+#define DK_CXLFLASH_DETACH CXL_IOWR(0x83, dk_cxlflash_detach)
+#define DK_CXLFLASH_VERIFY CXL_IOWR(0x84, dk_cxlflash_verify)
+#define DK_CXLFLASH_RECOVER_AFU CXL_IOWR(0x85, dk_cxlflash_recover_afu)
+#define DK_CXLFLASH_MANAGE_LUN CXL_IOWR(0x86, dk_cxlflash_manage_lun)
+#define DK_CXLFLASH_USER_VIRTUAL CXL_IOWR(0x87, dk_cxlflash_uvirtual)
+#define DK_CXLFLASH_VLUN_RESIZE CXL_IOWR(0x88, dk_cxlflash_resize)
+#define DK_CXLFLASH_VLUN_CLONE CXL_IOWR(0x89, dk_cxlflash_clone)
+
+#endif /* ifndef _CXLFLASH_IOCTL_H */
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