[SCSI] qla2xxx: Implemetation of mctp.

[jejb: fix up checkpatch errors]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index f76424e..f042176 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -26,7 +26,7 @@ qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
        struct qla_hw_data *ha = vha->hw;
        int rval = 0;
 
-       if (ha->fw_dump_reading == 0)
+       if (!(ha->fw_dump_reading || ha->mctp_dump_reading))
                return 0;
 
        if (IS_QLA82XX(ha)) {
@@ -39,9 +39,14 @@ qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
                rval = memory_read_from_buffer(buf, count,
                    &off, ha->md_dump, ha->md_dump_size);
                return rval;
-       } else
+       } else if (ha->mctp_dumped && ha->mctp_dump_reading)
+               return memory_read_from_buffer(buf, count, &off, ha->mctp_dump,
+                   MCTP_DUMP_SIZE);
+       else if (ha->fw_dump_reading)
                return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
                                        ha->fw_dump_len);
+       else
+               return 0;
 }
 
 static ssize_t
@@ -107,6 +112,22 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
                if (IS_QLA82XX(ha))
                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
                break;
+       case 6:
+               if (!ha->mctp_dump_reading)
+                       break;
+               ql_log(ql_log_info, vha, 0x70c1,
+                   "MCTP dump cleared on (%ld).\n", vha->host_no);
+               ha->mctp_dump_reading = 0;
+               ha->mctp_dumped = 0;
+               break;
+       case 7:
+               if (ha->mctp_dumped && !ha->mctp_dump_reading) {
+                       ha->mctp_dump_reading = 1;
+                       ql_log(ql_log_info, vha, 0x70c2,
+                           "Raw mctp dump ready for read on (%ld).\n",
+                           vha->host_no);
+               }
+               break;
        }
        return count;
 }

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 55998f4..6012805 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -12,28 +12,30 @@
  * |             Level            |   Last Value Used  |     Holes     |
  * ----------------------------------------------------------------------
  * | Module Init and Probe        |       0x0124       | 0x4b,0xba,0xfa |
- * | Mailbox commands             |       0x114c       | 0x111a-0x111b  |
+ * | Mailbox commands             |       0x114f       | 0x111a-0x111b  |
  * |                              |                    | 0x112c-0x112e  |
  * |                              |                    | 0x113a         |
  * | Device Discovery             |       0x2087       | 0x2020-0x2022  |
  * | Queue Command and IO tracing |       0x3030       | 0x3006,0x3008  |
  * |                              |                    | 0x302d-0x302e  |
  * | DPC Thread                   |       0x401c       | 0x4002,0x4013  |
- * | Async Events                 |       0x506c       | 0x502b-0x502f  |
+ * | Async Events                 |       0x5071       | 0x502b-0x502f  |
  * |                              |                    | 0x5047,0x5052  |
  * | Timer Routines               |       0x6011       |                |
- * | User Space Interactions      |       0x70bd       | 0x7018,0x702e, |
+ * | User Space Interactions      |       0x70c2       | 0x7018,0x702e, |
  * |                              |                    | 0x7039,0x7045, |
  * |                              |                    | 0x7073-0x7075, |
  * |                              |                    | 0x708c,        |
  * |                              |                    | 0x70a5,0x70a6, |
  * |                              |                    | 0x70a8,0x70ab, |
  * |                              |                    | 0x70ad-0x70ae  |
+ * |                              |                    | 0x70be-70c0    |
  * | Task Management              |       0x803c       | 0x8025-0x8026  |
  * |                              |                    | 0x800b,0x8039  |
  * | AER/EEH                      |       0x9011       |               |
  * | Virtual Port                 |       0xa007       |               |
- * | ISP82XX Specific             |       0xb080       | 0xb024         |
+ * | ISP82XX Specific             |       0xb084       | 0xb002         |
+ * |                              |                    | 0xb082,0xb083  |
  * | MultiQ                       |       0xc00c       |               |
  * | Misc                         |       0xd010       |               |
  * | Target Mode                 |       0xe06f       |                |

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 3d72bee..874c1cd 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2765,6 +2765,9 @@ struct qla_hw_data {
 #define IS_CT6_SUPPORTED(ha)   ((ha)->device_type & DT_CT6_SUPPORTED)
 #define IS_MQUE_CAPABLE(ha)    ((ha)->mqenable || IS_QLA83XX(ha))
 #define IS_BIDI_CAPABLE(ha)    ((IS_QLA25XX(ha) || IS_QLA2031(ha)))
+/* Bit 21 of fw_attributes decides the MCTP capabilities */
+#define IS_MCTP_CAPABLE(ha)    (IS_QLA2031(ha) && \
+                               ((ha)->fw_attributes_ext[0] & BIT_0))
 
        /* HBA serial number */
        uint8_t         serial0;
@@ -2880,7 +2883,12 @@ struct qla_hw_data {
        int             fw_dump_reading;
        dma_addr_t      eft_dma;
        void            *eft;
-
+/* Current size of mctp dump is 0x086064 bytes */
+#define MCTP_DUMP_SIZE  0x086064
+       dma_addr_t      mctp_dump_dma;
+       void            *mctp_dump;
+       int             mctp_dumped;
+       int             mctp_dump_reading;
        uint32_t        chain_offset;
        struct dentry *dfs_dir;
        struct dentry *dfs_fce;

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 98c187d..b808b8e 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -82,6 +82,7 @@ extern int __qla83xx_get_idc_control(scsi_qla_host_t *, uint32_t *);
 extern void qla83xx_idc_audit(scsi_qla_host_t *, int);
 extern int qla83xx_nic_core_reset(scsi_qla_host_t *);
 extern void qla83xx_reset_ownership(scsi_qla_host_t *);
+extern int qla2xxx_mctp_dump(scsi_qla_host_t *);
 
 /*
  * Global Data in qla_os.c source file.
@@ -399,6 +400,9 @@ qla81xx_set_port_config(scsi_qla_host_t *, uint16_t *);
 extern int
 qla2x00_port_logout(scsi_qla_host_t *, struct fc_port *);
 
+extern int
+qla2x00_dump_mctp_data(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t);
+
 /*
  * Global Function Prototypes in qla_isr.c source file.
  */

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 590238d..0ea15b7 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4110,6 +4110,60 @@ exit:
        return rval;
 }
 
+int
+qla2xxx_mctp_dump(scsi_qla_host_t *vha)
+{
+       struct qla_hw_data *ha = vha->hw;
+       int rval = QLA_FUNCTION_FAILED;
+
+       if (!IS_MCTP_CAPABLE(ha)) {
+               /* This message can be removed from the final version */
+               ql_log(ql_log_info, vha, 0x506d,
+                   "This board is not MCTP capable\n");
+               return rval;
+       }
+
+       if (!ha->mctp_dump) {
+               ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
+                   MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
+
+               if (!ha->mctp_dump) {
+                       ql_log(ql_log_warn, vha, 0x506e,
+                           "Failed to allocate memory for mctp dump\n");
+                       return rval;
+               }
+       }
+
+#define MCTP_DUMP_STR_ADDR     0x00000000
+       rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
+           MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
+       if (rval != QLA_SUCCESS) {
+               ql_log(ql_log_warn, vha, 0x506f,
+                   "Failed to capture mctp dump\n");
+       } else {
+               ql_log(ql_log_info, vha, 0x5070,
+                   "Mctp dump capture for host (%ld/%p).\n",
+                   vha->host_no, ha->mctp_dump);
+               ha->mctp_dumped = 1;
+       }
+
+       if (!ha->flags.nic_core_reset_hdlr_active) {
+               ha->flags.nic_core_reset_hdlr_active = 1;
+               rval = qla83xx_restart_nic_firmware(vha);
+               if (rval)
+                       /* NIC Core reset failed. */
+                       ql_log(ql_log_warn, vha, 0x5071,
+                           "Failed to restart nic firmware\n");
+               else
+                       ql_dbg(ql_dbg_p3p, vha, 0xb084,
+                           "Restarted NIC firmware successfully.\n");
+               ha->flags.nic_core_reset_hdlr_active = 0;
+       }
+
+       return rval;
+
+}
+
 /*
 * qla82xx_quiescent_state_cleanup
 * Description: This function will block the new I/Os

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 1587b64..691be37 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -559,18 +559,16 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha)
                ha->phy_version[1] = mcp->mb[9] >> 8;
                ha->phy_version[2] = mcp->mb[9] & 0xff;
        }
-       if (IS_QLA83XX(ha)) {
-               if (mcp->mb[6] & BIT_15) {
-                       ha->fw_attributes_h = mcp->mb[15];
-                       ha->fw_attributes_ext[0] = mcp->mb[16];
-                       ha->fw_attributes_ext[1] = mcp->mb[17];
-                       ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
-                           "%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
-                           __func__, mcp->mb[15], mcp->mb[6]);
-               } else
-                       ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
-                           "%s: FwAttributes [Upper]  invalid, MB6:%04x\n",
-                           __func__, mcp->mb[6]);
+       if (IS_FWI2_CAPABLE(ha)) {
+               ha->fw_attributes_h = mcp->mb[15];
+               ha->fw_attributes_ext[0] = mcp->mb[16];
+               ha->fw_attributes_ext[1] = mcp->mb[17];
+               ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
+                   "%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
+                   __func__, mcp->mb[15], mcp->mb[6]);
+               ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
+                   "%s: Ext_FwAttributes Upper: 0x%x, Lower: 0x%x.\n",
+                   __func__, mcp->mb[17], mcp->mb[16]);
        }
 
 failed:
@@ -3408,7 +3406,6 @@ qla2x00_dump_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
 
        return rval;
 }
-
 /* 84XX Support **************************************************************/
 
 struct cs84xx_mgmt_cmd {
@@ -4950,3 +4947,50 @@ qla83xx_access_control(scsi_qla_host_t *vha, uint16_t options,
 
        return rval;
 }
+
+int
+qla2x00_dump_mctp_data(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
+       uint32_t size)
+{
+       int rval;
+       mbx_cmd_t mc;
+       mbx_cmd_t *mcp = &mc;
+
+       if (!IS_MCTP_CAPABLE(vha->hw))
+               return QLA_FUNCTION_FAILED;
+
+       ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114f,
+           "Entered %s.\n", __func__);
+
+       mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED;
+       mcp->mb[1] = LSW(addr);
+       mcp->mb[2] = MSW(req_dma);
+       mcp->mb[3] = LSW(req_dma);
+       mcp->mb[4] = MSW(size);
+       mcp->mb[5] = LSW(size);
+       mcp->mb[6] = MSW(MSD(req_dma));
+       mcp->mb[7] = LSW(MSD(req_dma));
+       mcp->mb[8] = MSW(addr);
+       /* Setting RAM ID to valid */
+       mcp->mb[10] |= BIT_7;
+       /* For MCTP RAM ID is 0x40 */
+       mcp->mb[10] |= 0x40;
+
+       mcp->out_mb |= MBX_10|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|
+           MBX_0;
+
+       mcp->in_mb = MBX_0;
+       mcp->tov = MBX_TOV_SECONDS;
+       mcp->flags = 0;
+       rval = qla2x00_mailbox_command(vha, mcp);
+
+       if (rval != QLA_SUCCESS) {
+               ql_dbg(ql_dbg_mbx, vha, 0x114e,
+                   "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
+       } else {
+               ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114d,
+                   "Done %s.\n", __func__);
+       }
+
+       return rval;
+}

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index c705a51..6250e57 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2404,20 +2404,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
                base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
                                                base_vha->vp_idx;
 
-       if (IS_QLA8031(ha)) {
-               sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
-               ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
-               INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
-
-               sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
-               ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
-               INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
-               INIT_WORK(&ha->idc_state_handler,
-                   qla83xx_idc_state_handler_work);
-               INIT_WORK(&ha->nic_core_unrecoverable,
-                   qla83xx_nic_core_unrecoverable_work);
-       }
-
        /* Set the SG table size based on ISP type */
        if (!IS_FWI2_CAPABLE(ha)) {
                if (IS_QLA2100(ha))
@@ -2558,6 +2544,20 @@ que_init:
         */
        qla2xxx_wake_dpc(base_vha);
 
+       if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
+               sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
+               ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
+               INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
+
+               sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
+               ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
+               INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
+               INIT_WORK(&ha->idc_state_handler,
+                   qla83xx_idc_state_handler_work);
+               INIT_WORK(&ha->nic_core_unrecoverable,
+                   qla83xx_nic_core_unrecoverable_work);
+       }
+
 skip_dpc:
        list_add_tail(&base_vha->list, &ha->vp_list);
        base_vha->host->irq = ha->pdev->irq;
@@ -3331,6 +3331,10 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 {
        qla2x00_free_fw_dump(ha);
 
+       if (ha->mctp_dump)
+               dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
+                   ha->mctp_dump_dma);
+
        if (ha->srb_mempool)
                mempool_destroy(ha->srb_mempool);
 
@@ -3860,6 +3864,13 @@ qla83xx_nic_core_reset_work(struct work_struct *work)
        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
        uint32_t dev_state = 0;
 
+       if (IS_QLA2031(ha)) {
+               if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
+                       ql_log(ql_log_warn, base_vha, 0xb081,
+                           "Failed to dump mctp\n");
+               return;
+       }
+
        if (!ha->flags.nic_core_reset_hdlr_active) {
                if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
                        qla83xx_idc_lock(base_vha, 0);