1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <scsi/scsi_host.h>
24 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
25 #define CONFIG_SCSI_LPFC_DEBUG_FS
28 struct lpfc_sli2_slim;
30 #define ELX_MODEL_NAME_SIZE 80
32 #define LPFC_PCI_DEV_LP 0x1
33 #define LPFC_PCI_DEV_OC 0x2
35 #define LPFC_SLI_REV2 2
36 #define LPFC_SLI_REV3 3
37 #define LPFC_SLI_REV4 4
39 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */
40 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
42 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
43 the NameServer before giving up. */
44 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
45 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
46 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi
47 cmnd for menlo needs nearly twice as for firmware
48 downloads using bsg */
50 #define LPFC_MIN_SG_SLI4_BUF_SZ 0x800 /* based on LPFC_DEFAULT_SG_SEG_CNT */
51 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
52 #define LPFC_MAX_SG_SEG_CNT_DIF 512 /* sg element count per scsi cmnd */
53 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */
54 #define LPFC_MAX_SGL_SEG_CNT 512 /* SGL element count per scsi cmnd */
55 #define LPFC_MAX_BPL_SEG_CNT 4096 /* BPL element count per scsi cmnd */
57 #define LPFC_MAX_SGE_SIZE 0x80000000 /* Maximum data allowed in a SGE */
58 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
59 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
60 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */
61 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
62 queue depth change in millisecs */
63 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
64 #define LPFC_MIN_TGT_QDEPTH 10
65 #define LPFC_MAX_TGT_QDEPTH 0xFFFF
67 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
70 * Following time intervals are used of adjusting SCSI device
71 * queue depths when there are driver resource error or Firmware
75 #define QUEUE_RAMP_DOWN_INTERVAL (msecs_to_jiffies(1000 * 1))
77 /* Number of exchanges reserved for discovery to complete */
78 #define LPFC_DISC_IOCB_BUFF_COUNT 20
80 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
81 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
83 #define LPFC_LOOK_AHEAD_OFF 0 /* Look ahead logic is turned off */
85 /* Error Attention event polling interval */
86 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
88 /* Define macros for 64 bit support */
89 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
90 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
91 #define getPaddr(high, low) ((dma_addr_t)( \
92 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
93 /* Provide maximum configuration definitions. */
94 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
95 #define FC_MAX_ADPTMSG 64
99 /* Number of MSI-X vectors the driver uses */
100 #define LPFC_MSIX_VECTORS 2
102 /* lpfc wait event data ready flag */
103 #define LPFC_DATA_READY (1<<0)
105 /* queue dump line buffer size */
106 #define LPFC_LBUF_SZ 128
108 /* mailbox system shutdown options */
109 #define LPFC_MBX_NO_WAIT 0
110 #define LPFC_MBX_WAIT 1
112 enum lpfc_polling_flags {
113 ENABLE_FCP_RING_POLLING = 0x1,
114 DISABLE_FCP_RING_INT = 0x2
117 /* Provide DMA memory definitions the driver uses per port instance. */
119 struct list_head list;
120 void *virt; /* virtual address ptr */
121 dma_addr_t phys; /* mapped address */
122 uint32_t buffer_tag; /* used for tagged queue ring */
125 struct lpfc_dma_pool {
126 struct lpfc_dmabuf *elements;
128 uint32_t current_count;
132 struct lpfc_dmabuf hbuf;
133 struct lpfc_dmabuf dbuf;
136 struct lpfc_cq_event cq_event;
137 unsigned long time_stamp;
140 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
141 #define MEM_PRI 0x100
144 /****************************************************************************/
145 /* Device VPD save area */
146 /****************************************************************************/
147 typedef struct lpfc_vpd {
148 uint32_t status; /* vpd status value */
149 uint32_t length; /* number of bytes actually returned */
151 uint32_t rsvd1; /* Revision numbers */
159 uint8_t feaLevelHigh;
161 uint32_t postKernRev;
163 uint8_t opFwName[16];
165 uint8_t sli1FwName[16];
167 uint8_t sli2FwName[16];
170 #ifdef __BIG_ENDIAN_BITFIELD
171 uint32_t rsvd3 :19; /* Reserved */
172 uint32_t cdss : 1; /* Configure Data Security SLI */
173 uint32_t rsvd2 : 3; /* Reserved */
174 uint32_t cbg : 1; /* Configure BlockGuard */
175 uint32_t cmv : 1; /* Configure Max VPIs */
176 uint32_t ccrp : 1; /* Config Command Ring Polling */
177 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
178 uint32_t chbs : 1; /* Cofigure Host Backing store */
179 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
180 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
181 uint32_t cmx : 1; /* Configure Max XRIs */
182 uint32_t cmr : 1; /* Configure Max RPIs */
183 #else /* __LITTLE_ENDIAN */
184 uint32_t cmr : 1; /* Configure Max RPIs */
185 uint32_t cmx : 1; /* Configure Max XRIs */
186 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
187 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
188 uint32_t chbs : 1; /* Cofigure Host Backing store */
189 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
190 uint32_t ccrp : 1; /* Config Command Ring Polling */
191 uint32_t cmv : 1; /* Configure Max VPIs */
192 uint32_t cbg : 1; /* Configure BlockGuard */
193 uint32_t rsvd2 : 3; /* Reserved */
194 uint32_t cdss : 1; /* Configure Data Security SLI */
195 uint32_t rsvd3 :19; /* Reserved */
200 struct lpfc_scsi_buf;
207 /* Statistics for ELS commands */
209 uint32_t elsRetryExceeded;
210 uint32_t elsXmitRetry;
211 uint32_t elsDelayRetry;
213 uint32_t elsRcvFrame;
217 uint32_t elsRcvFARPR;
218 uint32_t elsRcvFLOGI;
219 uint32_t elsRcvPLOGI;
220 uint32_t elsRcvADISC;
221 uint32_t elsRcvPDISC;
234 uint32_t elsXmitFLOGI;
235 uint32_t elsXmitFDISC;
236 uint32_t elsXmitPLOGI;
237 uint32_t elsXmitPRLI;
238 uint32_t elsXmitADISC;
239 uint32_t elsXmitLOGO;
241 uint32_t elsXmitRNID;
242 uint32_t elsXmitFARP;
243 uint32_t elsXmitFARPR;
245 uint32_t elsXmitLSRJT;
247 uint32_t frameRcvBcast;
248 uint32_t frameRcvMulti;
249 uint32_t strayXmitCmpl;
250 uint32_t frameXmitDelay;
255 uint32_t LinkMultiEvent;
260 uint32_t fcpRemoteStop;
262 uint32_t fcpPortBusy;
264 uint32_t fcpLocalErr;
270 enum discovery_state {
271 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
272 LPFC_VPORT_FAILED = 1, /* vport has failed */
273 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
274 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
275 LPFC_FDISC = 8, /* FDISC sent for vport */
276 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
278 LPFC_NS_REG = 10, /* Register with NameServer */
279 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
280 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
281 * device authentication / discovery */
282 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
283 LPFC_VPORT_READY = 32,
287 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
288 LPFC_WARM_START = 1, /* HBA state after selective reset */
289 LPFC_INIT_START = 2, /* Initial state after board reset */
290 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
291 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
292 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
293 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
300 struct lpfc_hba *phba;
301 struct list_head listentry;
303 #define LPFC_PHYSICAL_PORT 1
304 #define LPFC_NPIV_PORT 2
305 #define LPFC_FABRIC_PORT 3
306 enum discovery_state port_state;
311 #define LPFC_VPI_REGISTERED 0x1
313 uint32_t fc_flag; /* FC flags */
314 /* Several of these flags are HBA centric and should be moved to
315 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
317 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
318 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
319 #define FC_DISC_TMO 0x4 /* Discovery timer running */
320 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
321 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
322 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
323 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
324 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
325 #define FC_FABRIC 0x100 /* We are fabric attached */
326 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */
327 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
328 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/
329 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
330 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
331 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
332 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
333 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
334 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
335 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
336 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */
337 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */
338 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */
339 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */
342 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
343 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
344 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
345 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
346 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
348 struct list_head fc_nodes;
350 /* Keep counters for the number of entries in each list. */
351 uint16_t fc_plogi_cnt;
352 uint16_t fc_adisc_cnt;
353 uint16_t fc_reglogin_cnt;
354 uint16_t fc_prli_cnt;
355 uint16_t fc_unmap_cnt;
358 uint16_t fc_unused_cnt;
359 struct serv_parm fc_sparam; /* buffer for our service parameters */
361 uint32_t fc_myDID; /* fibre channel S_ID */
362 uint32_t fc_prevDID; /* previous fibre channel S_ID */
363 struct lpfc_name fabric_portname;
364 struct lpfc_name fabric_nodename;
366 int32_t stopped; /* HBA has not been restarted since last ERATT */
367 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
369 uint32_t num_disc_nodes; /*in addition to hba_state */
371 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
372 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
373 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
374 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
375 struct lpfc_name fc_nodename; /* fc nodename */
376 struct lpfc_name fc_portname; /* fc portname */
378 struct lpfc_work_evt disc_timeout_evt;
380 struct timer_list fc_disctmo; /* Discovery rescue timer */
381 uint8_t fc_ns_retry; /* retries for fabric nameserver */
382 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
384 spinlock_t work_port_lock;
385 uint32_t work_port_events; /* Timeout to be handled */
386 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
387 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
388 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
389 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
391 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
392 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
393 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
394 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
395 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
396 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
398 struct timer_list fc_fdmitmo;
399 struct timer_list els_tmofunc;
400 struct timer_list delayed_disc_tmo;
405 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
406 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
407 /* Vport Config Parameters */
408 uint32_t cfg_scan_down;
409 uint32_t cfg_lun_queue_depth;
410 uint32_t cfg_nodev_tmo;
411 uint32_t cfg_devloss_tmo;
412 uint32_t cfg_restrict_login;
413 uint32_t cfg_peer_port_login;
414 uint32_t cfg_fcp_class;
415 uint32_t cfg_use_adisc;
416 uint32_t cfg_fdmi_on;
417 #define LPFC_FDMI_SUPPORT 1 /* bit 0 - FDMI supported? */
418 #define LPFC_FDMI_REG_DELAY 2 /* bit 1 - 60 sec registration delay */
419 #define LPFC_FDMI_ALL_ATTRIB 4 /* bit 2 - register ALL attributes? */
420 uint32_t cfg_discovery_threads;
421 uint32_t cfg_log_verbose;
422 uint32_t cfg_max_luns;
423 uint32_t cfg_enable_da_id;
424 uint32_t cfg_max_scsicmpl_time;
425 uint32_t cfg_tgt_queue_depth;
426 uint32_t cfg_first_burst_size;
428 uint32_t dev_loss_tmo_changed;
430 struct fc_vport *fc_vport;
432 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
433 struct dentry *debug_disc_trc;
434 struct dentry *debug_nodelist;
435 struct dentry *vport_debugfs_root;
436 struct lpfc_debugfs_trc *disc_trc;
437 atomic_t disc_trc_cnt;
439 uint8_t stat_data_enabled;
440 uint8_t stat_data_blocked;
441 struct list_head rcv_buffer_list;
442 unsigned long rcv_buffer_time_stamp;
444 #define STATIC_VPORT 1
448 uint16_t entry_count; /* Current number of HBQ slots */
449 uint16_t buffer_count; /* Current number of buffers posted */
450 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
451 uint32_t hbqPutIdx; /* HBQ slot to use */
452 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
453 void *hbq_virt; /* Virtual ptr to this hbq */
454 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
455 /* Callback for HBQ buffer allocation */
456 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
457 /* Callback for HBQ buffer free */
458 void (*hbq_free_buffer) (struct lpfc_hba *,
459 struct hbq_dmabuf *);
462 #define LPFC_MAX_HBQS 4
463 /* this matches the position in the lpfc_hbq_defs array */
464 #define LPFC_ELS_HBQ 0
465 #define LPFC_EXTRA_HBQ 1
467 enum hba_temp_state {
479 #define LPFC_CT_CTX_MAX 64
480 struct unsol_rcv_ct_ctx {
484 #define UNSOL_INVALID 0
485 #define UNSOL_VALID 1
490 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/
491 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */
492 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */
493 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */
494 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */
495 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */
496 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */
497 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G
498 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \
499 (1 << LPFC_USER_LINK_SPEED_10G) | \
500 (1 << LPFC_USER_LINK_SPEED_8G) | \
501 (1 << LPFC_USER_LINK_SPEED_4G) | \
502 (1 << LPFC_USER_LINK_SPEED_2G) | \
503 (1 << LPFC_USER_LINK_SPEED_1G) | \
504 (1 << LPFC_USER_LINK_SPEED_AUTO))
505 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16"
527 struct lpfc_mbox_ext_buf_ctx {
529 #define LPFC_BSG_MBOX_IDLE 0
530 #define LPFC_BSG_MBOX_HOST 1
531 #define LPFC_BSG_MBOX_PORT 2
532 #define LPFC_BSG_MBOX_DONE 3
533 #define LPFC_BSG_MBOX_ABTS 4
534 enum nemb_type nembType;
535 enum mbox_type mboxType;
539 struct lpfc_dmabuf *mbx_dmabuf;
540 struct list_head ext_dmabuf_list;
544 /* SCSI interface function jump table entries */
545 int (*lpfc_new_scsi_buf)
546 (struct lpfc_vport *, int);
547 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
548 (struct lpfc_hba *, struct lpfc_nodelist *);
549 int (*lpfc_scsi_prep_dma_buf)
550 (struct lpfc_hba *, struct lpfc_scsi_buf *);
551 void (*lpfc_scsi_unprep_dma_buf)
552 (struct lpfc_hba *, struct lpfc_scsi_buf *);
553 void (*lpfc_release_scsi_buf)
554 (struct lpfc_hba *, struct lpfc_scsi_buf *);
555 void (*lpfc_rampdown_queue_depth)
557 void (*lpfc_scsi_prep_cmnd)
558 (struct lpfc_vport *, struct lpfc_scsi_buf *,
559 struct lpfc_nodelist *);
561 /* IOCB interface function jump table entries */
562 int (*__lpfc_sli_issue_iocb)
563 (struct lpfc_hba *, uint32_t,
564 struct lpfc_iocbq *, uint32_t);
565 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
566 struct lpfc_iocbq *);
567 int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
568 IOCB_t * (*lpfc_get_iocb_from_iocbq)
569 (struct lpfc_iocbq *);
570 void (*lpfc_scsi_cmd_iocb_cmpl)
571 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
573 /* MBOX interface function jump table entries */
574 int (*lpfc_sli_issue_mbox)
575 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
577 /* Slow-path IOCB process function jump table entries */
578 void (*lpfc_sli_handle_slow_ring_event)
579 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
582 /* INIT device interface function jump table entries */
583 int (*lpfc_sli_hbq_to_firmware)
584 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
585 int (*lpfc_sli_brdrestart)
587 int (*lpfc_sli_brdready)
588 (struct lpfc_hba *, uint32_t);
589 void (*lpfc_handle_eratt)
591 void (*lpfc_stop_port)
593 int (*lpfc_hba_init_link)
594 (struct lpfc_hba *, uint32_t);
595 int (*lpfc_hba_down_link)
596 (struct lpfc_hba *, uint32_t);
597 int (*lpfc_selective_reset)
600 int (*lpfc_bg_scsi_prep_dma_buf)
601 (struct lpfc_hba *, struct lpfc_scsi_buf *);
602 /* Add new entries here */
604 /* SLI4 specific HBA data structure */
605 struct lpfc_sli4_hba sli4_hba;
608 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
609 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */
610 uint32_t sli3_options; /* Mask of enabled SLI3 options */
611 #define LPFC_SLI3_HBQ_ENABLED 0x01
612 #define LPFC_SLI3_NPIV_ENABLED 0x02
613 #define LPFC_SLI3_VPORT_TEARDOWN 0x04
614 #define LPFC_SLI3_CRP_ENABLED 0x08
615 #define LPFC_SLI3_BG_ENABLED 0x20
616 #define LPFC_SLI3_DSS_ENABLED 0x40
617 #define LPFC_SLI4_PERFH_ENABLED 0x80
618 #define LPFC_SLI4_PHWQ_ENABLED 0x100
619 uint32_t iocb_cmd_size;
620 uint32_t iocb_rsp_size;
622 enum hba_state link_state;
623 uint32_t link_flag; /* link state flags */
624 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
625 /* This flag is set while issuing */
626 /* INIT_LINK mailbox command */
627 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
628 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
630 uint32_t hba_flag; /* hba generic flags */
631 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
632 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */
633 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */
634 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/
635 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
636 #define FCP_XRI_ABORT_EVENT 0x20
637 #define ELS_XRI_ABORT_EVENT 0x40
638 #define ASYNC_EVENT 0x80
639 #define LINK_DISABLED 0x100 /* Link disabled by user */
640 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */
641 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */
642 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */
643 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */
644 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */
645 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */
646 #define HBA_FCP_IOQ_FLUSH 0x8000 /* FCP I/O queues being flushed */
647 #define HBA_FW_DUMP_OP 0x10000 /* Skips fn reset before FW dump */
648 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
649 struct lpfc_dmabuf slim2p;
653 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
658 struct lpfc_dmabuf hbqslimp;
660 uint16_t pci_cfg_value;
662 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
664 uint32_t fc_eventTag; /* event tag for link attention */
665 uint32_t link_events;
667 /* These fields used to be binfo */
668 uint32_t fc_pref_DID; /* preferred D_ID */
669 uint8_t fc_pref_ALPA; /* preferred AL_PA */
670 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
671 uint32_t fc_edtov; /* E_D_TOV timer value */
672 uint32_t fc_arbtov; /* ARB_TOV timer value */
673 uint32_t fc_ratov; /* R_A_TOV timer value */
674 uint32_t fc_rttov; /* R_T_TOV timer value */
675 uint32_t fc_altov; /* AL_TOV timer value */
676 uint32_t fc_crtov; /* C_R_TOV timer value */
677 uint32_t fc_citov; /* C_I_TOV timer value */
679 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
680 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
684 uint32_t fc_topology; /* link topology, from LINK INIT */
685 uint32_t fc_topology_changed; /* link topology, from LINK INIT */
687 struct lpfc_stats fc_stat;
689 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
690 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
694 uint32_t RandomData[7];
696 /* HBA Config Parameters */
698 uint32_t cfg_enable_npiv;
699 uint32_t cfg_enable_rrq;
700 uint32_t cfg_topology;
701 uint32_t cfg_link_speed;
702 #define LPFC_FCF_FOV 1 /* Fast fcf failover */
703 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */
704 uint32_t cfg_fcf_failover_policy;
705 uint32_t cfg_fcp_io_sched;
706 uint32_t cfg_fcp2_no_tgt_reset;
707 uint32_t cfg_cr_delay;
708 uint32_t cfg_cr_count;
709 uint32_t cfg_multi_ring_support;
710 uint32_t cfg_multi_ring_rctl;
711 uint32_t cfg_multi_ring_type;
713 uint32_t cfg_poll_tmo;
714 uint32_t cfg_task_mgmt_tmo;
715 uint32_t cfg_use_msi;
716 uint32_t cfg_fcp_imax;
717 uint32_t cfg_fcp_cpu_map;
718 uint32_t cfg_fcp_io_channel;
719 uint32_t cfg_total_seg_cnt;
720 uint32_t cfg_sg_seg_cnt;
721 uint32_t cfg_prot_sg_seg_cnt;
722 uint32_t cfg_sg_dma_buf_size;
723 uint64_t cfg_soft_wwnn;
724 uint64_t cfg_soft_wwpn;
725 uint32_t cfg_hba_queue_depth;
726 uint32_t cfg_enable_hba_reset;
727 uint32_t cfg_enable_hba_heartbeat;
729 uint32_t cfg_EnableXLane;
730 uint8_t cfg_oas_tgt_wwpn[8];
731 uint8_t cfg_oas_vpt_wwpn[8];
732 uint32_t cfg_oas_lun_state;
733 #define OAS_LUN_ENABLE 1
734 #define OAS_LUN_DISABLE 0
735 uint32_t cfg_oas_lun_status;
736 #define OAS_LUN_STATUS_EXISTS 0x01
737 uint32_t cfg_oas_flags;
738 #define OAS_FIND_ANY_VPORT 0x01
739 #define OAS_FIND_ANY_TARGET 0x02
740 #define OAS_LUN_VALID 0x04
741 uint32_t cfg_XLanePriority;
742 uint32_t cfg_enable_bg;
743 uint32_t cfg_hostmem_hgp;
744 uint32_t cfg_log_verbose;
745 uint32_t cfg_aer_support;
746 uint32_t cfg_sriov_nr_virtfn;
747 uint32_t cfg_request_firmware_upgrade;
748 uint32_t cfg_iocb_cnt;
749 uint32_t cfg_suppress_link_up;
750 uint32_t cfg_rrq_xri_bitmap_sz;
751 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
752 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
753 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
754 uint32_t cfg_enable_dss;
755 lpfc_vpd_t vpd; /* vital product data */
757 struct pci_dev *pcidev;
758 struct list_head work_list;
759 uint32_t work_ha; /* Host Attention Bits for WT */
760 uint32_t work_ha_mask; /* HA Bits owned by WT */
761 uint32_t work_hs; /* HS stored in case of ERRAT */
762 uint32_t work_status[2]; /* Extra status from SLIM */
764 wait_queue_head_t work_waitq;
765 struct task_struct *worker_thread;
766 unsigned long data_flags;
768 uint32_t hbq_in_use; /* HBQs in use flag */
769 struct list_head rb_pend_list; /* Received buffers to be processed */
770 uint32_t hbq_count; /* Count of configured HBQs */
771 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
773 atomic_t fcp_qidx; /* next work queue to post work to */
775 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
776 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */
777 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
778 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
780 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
783 void __iomem *pci_bar0_memmap_p; /* Kernel memory mapped address for
784 PCI BAR0 with dual-ULP support */
785 void __iomem *pci_bar2_memmap_p; /* Kernel memory mapped address for
786 PCI BAR2 with dual-ULP support */
787 void __iomem *pci_bar4_memmap_p; /* Kernel memory mapped address for
788 PCI BAR4 with dual-ULP support */
789 #define PCI_64BIT_BAR0 0
790 #define PCI_64BIT_BAR2 2
791 #define PCI_64BIT_BAR4 4
792 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
793 void __iomem *HAregaddr; /* virtual address for host attn reg */
794 void __iomem *CAregaddr; /* virtual address for chip attn reg */
795 void __iomem *HSregaddr; /* virtual address for host status
797 void __iomem *HCregaddr; /* virtual address for host ctl reg */
799 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
800 struct lpfc_pgp *port_gp;
801 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
802 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
804 int brd_no; /* FC board number */
805 char SerialNumber[32]; /* adapter Serial Number */
806 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
807 char ModelDesc[256]; /* Model Description */
808 char ModelName[80]; /* Model Name */
809 char ProgramType[256]; /* Program Type */
810 char Port[20]; /* Port No */
811 uint8_t vpd_flag; /* VPD data flag */
813 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
814 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
815 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
816 #define VPD_PORT 0x8 /* valid vpd port data */
817 #define VPD_MASK 0xf /* mask for any vpd data */
819 uint8_t soft_wwn_enable;
821 struct timer_list fcp_poll_timer;
822 struct timer_list eratt_poll;
827 uint64_t fc4InputRequests;
828 uint64_t fc4OutputRequests;
829 uint64_t fc4ControlRequests;
830 uint64_t bg_guard_err_cnt;
831 uint64_t bg_apptag_err_cnt;
832 uint64_t bg_reftag_err_cnt;
835 spinlock_t scsi_buf_list_get_lock; /* SCSI buf alloc list lock */
836 spinlock_t scsi_buf_list_put_lock; /* SCSI buf free list lock */
837 struct list_head lpfc_scsi_buf_list_get;
838 struct list_head lpfc_scsi_buf_list_put;
839 uint32_t total_scsi_bufs;
840 struct list_head lpfc_iocb_list;
841 uint32_t total_iocbq_bufs;
842 struct list_head active_rrq_list;
846 struct pci_pool *lpfc_scsi_dma_buf_pool;
847 struct pci_pool *lpfc_mbuf_pool;
848 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
849 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
850 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
851 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
853 mempool_t *mbox_mem_pool;
854 mempool_t *nlp_mem_pool;
856 mempool_t *active_rrq_pool;
858 struct fc_host_statistics link_stats;
859 enum intr_type_t intr_type;
861 #define LPFC_INTR_ERROR 0xFFFFFFFF
862 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
864 struct list_head port_list;
865 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
866 uint16_t max_vpi; /* Maximum virtual nports */
867 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
868 uint16_t max_vports; /*
869 * For IOV HBAs max_vpi can change
870 * after a reset. max_vports is max
871 * number of vports present. This can
872 * be greater than max_vpi.
876 unsigned long *vpi_bmask; /* vpi allocation table */
879 struct list_head lpfc_vpi_blk_list;
881 /* Data structure used by fabric iocb scheduler */
882 struct list_head fabric_iocb_list;
883 atomic_t fabric_iocb_count;
884 struct timer_list fabric_block_timer;
885 unsigned long bit_flags;
886 #define FABRIC_COMANDS_BLOCKED 0
887 atomic_t num_rsrc_err;
888 atomic_t num_cmd_success;
889 unsigned long last_rsrc_error_time;
890 unsigned long last_ramp_down_time;
891 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
892 struct dentry *hba_debugfs_root;
893 atomic_t debugfs_vport_count;
894 struct dentry *debug_hbqinfo;
895 struct dentry *debug_dumpHostSlim;
896 struct dentry *debug_dumpHBASlim;
897 struct dentry *debug_dumpData; /* BlockGuard BPL */
898 struct dentry *debug_dumpDif; /* BlockGuard BPL */
899 struct dentry *debug_InjErrLBA; /* LBA to inject errors at */
900 struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */
901 struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */
902 struct dentry *debug_writeGuard; /* inject write guard_tag errors */
903 struct dentry *debug_writeApp; /* inject write app_tag errors */
904 struct dentry *debug_writeRef; /* inject write ref_tag errors */
905 struct dentry *debug_readGuard; /* inject read guard_tag errors */
906 struct dentry *debug_readApp; /* inject read app_tag errors */
907 struct dentry *debug_readRef; /* inject read ref_tag errors */
909 /* T10 DIF error injection */
910 uint32_t lpfc_injerr_wgrd_cnt;
911 uint32_t lpfc_injerr_wapp_cnt;
912 uint32_t lpfc_injerr_wref_cnt;
913 uint32_t lpfc_injerr_rgrd_cnt;
914 uint32_t lpfc_injerr_rapp_cnt;
915 uint32_t lpfc_injerr_rref_cnt;
916 uint32_t lpfc_injerr_nportid;
917 struct lpfc_name lpfc_injerr_wwpn;
918 sector_t lpfc_injerr_lba;
919 #define LPFC_INJERR_LBA_OFF (sector_t)(-1)
921 struct dentry *debug_slow_ring_trc;
922 struct lpfc_debugfs_trc *slow_ring_trc;
923 atomic_t slow_ring_trc_cnt;
924 /* iDiag debugfs sub-directory */
925 struct dentry *idiag_root;
926 struct dentry *idiag_pci_cfg;
927 struct dentry *idiag_bar_acc;
928 struct dentry *idiag_que_info;
929 struct dentry *idiag_que_acc;
930 struct dentry *idiag_drb_acc;
931 struct dentry *idiag_ctl_acc;
932 struct dentry *idiag_mbx_acc;
933 struct dentry *idiag_ext_acc;
936 /* Used for deferred freeing of ELS data buffers */
937 struct list_head elsbuf;
941 uint8_t temp_sensor_support;
942 /* Fields used for heart beat. */
943 unsigned long last_completion_time;
944 unsigned long skipped_hb;
945 struct timer_list hb_tmofunc;
946 uint8_t hb_outstanding;
947 struct timer_list rrq_tmr;
948 enum hba_temp_state over_temp_state;
949 /* ndlp reference management */
950 spinlock_t ndlp_lock;
952 * Following bit will be set for all buffer tags which are not
953 * associated with any HBQ.
955 #define QUE_BUFTAG_BIT (1<<31)
956 uint32_t buffer_tag_count;
957 int wait_4_mlo_maint_flg;
958 wait_queue_head_t wait_4_mlo_m_q;
959 /* data structure used for latency data collection */
960 #define LPFC_NO_BUCKET 0
961 #define LPFC_LINEAR_BUCKET 1
962 #define LPFC_POWER2_BUCKET 2
964 uint32_t bucket_base;
965 uint32_t bucket_step;
967 /* Maximum number of events that can be outstanding at any time*/
968 #define LPFC_MAX_EVT_COUNT 512
969 atomic_t fast_event_count;
970 uint32_t fcoe_eventtag;
971 uint32_t fcoe_eventtag_at_fcf_scan;
972 uint32_t fcoe_cvl_eventtag;
973 uint32_t fcoe_cvl_eventtag_attn;
978 struct list_head fcf_conn_rec_list;
980 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
981 struct list_head ct_ev_waiters;
982 struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
985 uint8_t menlo_flag; /* menlo generic flags */
986 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */
990 uint8_t fips_spec_rev;
992 spinlock_t devicelock; /* lock for luns list */
993 mempool_t *device_data_mem_pool;
994 struct list_head luns;
997 static inline struct Scsi_Host *
998 lpfc_shost_from_vport(struct lpfc_vport *vport)
1000 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
1004 lpfc_set_loopback_flag(struct lpfc_hba *phba)
1006 if (phba->cfg_topology == FLAGS_LOCAL_LB)
1007 phba->link_flag |= LS_LOOPBACK_MODE;
1009 phba->link_flag &= ~LS_LOOPBACK_MODE;
1013 lpfc_is_link_up(struct lpfc_hba *phba)
1015 return phba->link_state == LPFC_LINK_UP ||
1016 phba->link_state == LPFC_CLEAR_LA ||
1017 phba->link_state == LPFC_HBA_READY;
1021 lpfc_worker_wake_up(struct lpfc_hba *phba)
1023 /* Set the lpfc data pending flag */
1024 set_bit(LPFC_DATA_READY, &phba->data_flags);
1026 /* Wake up worker thread */
1027 wake_up(&phba->work_waitq);
1032 lpfc_readl(void __iomem *addr, uint32_t *data)
1036 if (temp == 0xffffffff)
1043 lpfc_sli_read_hs(struct lpfc_hba *phba)
1046 * There was a link/board error. Read the status register to retrieve
1047 * the error event and process it.
1049 phba->sli.slistat.err_attn_event++;
1051 /* Save status info and check for unplug error */
1052 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1053 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1054 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1058 /* Clear chip Host Attention error bit */
1059 writel(HA_ERATT, phba->HAregaddr);
1060 readl(phba->HAregaddr); /* flush */
1061 phba->pport->stopped = 1;