[SCSI] lpfc 8.3.4: Various SLI4 fixes

Various SLI4 fixes

- Fix switch name not used in the FCF record for FCoE HBAs
- Enabled HBA UE error polling error-condition action code
- Rewrite lpfc_sli4_scmd_to_wqidx_distr() to handle counter rollover cleanly
- Modify resume_rpi mailbox data structure to match current SLI4 spec
- Do not issue mailbox command in MBX_POLL mode when LPFC_HBA_ERROR is set
- Wait for HBA POST completion before checking Online and UE registers
- Fix accumulated total length not being filled in on unsolicited IOCBs
- Use PCI config space register to determine SLI rev of HBA
- Turn on starting ELS tmo function timer during device initialization

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 40 insertions, 50 deletions

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index acc43b061ba1..04f527ca8f5f 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -4522,12 +4522,8 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
         lpfc_sli4_rb_setup(phba);
 
         /* Start the ELS watchdog timer */
-        /*
-         * The driver for SLI4 is not yet ready to process timeouts
-         * or interrupts.  Once it is, the comment bars can be removed.
-         */
-        /* mod_timer(&vport->els_tmofunc,
-         *           jiffies + HZ * (phba->fc_ratov*2)); */
+        mod_timer(&vport->els_tmofunc,
+                  jiffies + HZ * (phba->fc_ratov * 2));
 
         /* Start heart beat timer */
         mod_timer(&phba->hb_tmofunc,
@@ -5279,6 +5275,18 @@ lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
         unsigned long iflags;
         int rc;
 
+        rc = lpfc_mbox_dev_check(phba);
+        if (unlikely(rc)) {
+                lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+                                "(%d):2544 Mailbox command x%x (x%x) "
+                                "cannot issue Data: x%x x%x\n",
+                                mboxq->vport ? mboxq->vport->vpi : 0,
+                                mboxq->u.mb.mbxCommand,
+                                lpfc_sli4_mbox_opcode_get(phba, mboxq),
+                                psli->sli_flag, flag);
+                goto out_not_finished;
+        }
+
         /* Detect polling mode and jump to a handler */
         if (!phba->sli4_hba.intr_enable) {
                 if (flag == MBX_POLL)
@@ -5338,17 +5346,6 @@ lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
                                 psli->sli_flag, flag);
                 goto out_not_finished;
         }
-        rc = lpfc_mbox_dev_check(phba);
-        if (unlikely(rc)) {
-                lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
-                                "(%d):2544 Mailbox command x%x (x%x) "
-                                "cannot issue Data: x%x x%x\n",
-                                mboxq->vport ? mboxq->vport->vpi : 0,
-                                mboxq->u.mb.mbxCommand,
-                                lpfc_sli4_mbox_opcode_get(phba, mboxq),
-                                psli->sli_flag, flag);
-                goto out_not_finished;
-        }
 
         /* Put the mailbox command to the driver internal FIFO */
         psli->slistat.mbox_busy++;
@@ -5817,19 +5814,21 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
 /**
  * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
  * @phba: Pointer to HBA context object.
- * @piocb: Pointer to command iocb.
  *
  * This routine performs a round robin SCSI command to SLI4 FCP WQ index
- * distribution.
+ * distribution.  This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
+ * held.
  *
  * Return: index into SLI4 fast-path FCP queue index.
  **/
 static uint32_t
-lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
+lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
 {
-        static uint32_t fcp_qidx;
+        ++phba->fcp_qidx;
+        if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
+                phba->fcp_qidx = 0;
 
-        return fcp_qidx++ % phba->cfg_fcp_wq_count;
+        return phba->fcp_qidx;
 }
 
 /**
@@ -6156,7 +6155,7 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
                 return IOCB_ERROR;
 
         if (piocb->iocb_flag &  LPFC_IO_FCP) {
-                fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba, piocb);
+                fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
                 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[fcp_wqidx], &wqe))
                         return IOCB_ERROR;
         } else {
@@ -7678,12 +7677,6 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
                                         "online0_reg=0x%x, online1_reg=0x%x\n",
                                         uerr_sta_lo, uerr_sta_hi,
                                         onlnreg0, onlnreg1);
-                        /* TEMP: as the driver error recover logic is not
-                         * fully developed, we just log the error message
-                         * and the device error attention action is now
-                         * temporarily disabled.
-                         */
-                        return 0;
                         phba->work_status[0] = uerr_sta_lo;
                         phba->work_status[1] = uerr_sta_hi;
                         /* Set the driver HA work bitmap */
@@ -9499,8 +9492,7 @@ lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
         eq->host_index = 0;
         eq->hba_index = 0;
 
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, phba->mbox_mem_pool);
+        mempool_free(mbox, phba->mbox_mem_pool);
         return status;
 }
 
@@ -9604,10 +9596,9 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
         cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
         cq->host_index = 0;
         cq->hba_index = 0;
-out:
 
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, phba->mbox_mem_pool);
+out:
+        mempool_free(mbox, phba->mbox_mem_pool);
         return status;
 }
 
@@ -9712,8 +9703,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
         /* link the mq onto the parent cq child list */
         list_add_tail(&mq->list, &cq->child_list);
 out:
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, phba->mbox_mem_pool);
+        mempool_free(mbox, phba->mbox_mem_pool);
         return status;
 }
 
@@ -9795,8 +9785,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
         /* link the wq onto the parent cq child list */
         list_add_tail(&wq->list, &cq->child_list);
 out:
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, phba->mbox_mem_pool);
+        mempool_free(mbox, phba->mbox_mem_pool);
         return status;
 }
 
@@ -9970,8 +9959,7 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
         list_add_tail(&drq->list, &cq->child_list);
 
 out:
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, phba->mbox_mem_pool);
+        mempool_free(mbox, phba->mbox_mem_pool);
         return status;
 }
 
@@ -10026,8 +10014,7 @@ lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
 
         /* Remove eq from any list */
         list_del_init(&eq->list);
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, eq->phba->mbox_mem_pool);
+        mempool_free(mbox, eq->phba->mbox_mem_pool);
         return status;
 }
 
@@ -10080,8 +10067,7 @@ lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
         }
         /* Remove cq from any list */
         list_del_init(&cq->list);
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, cq->phba->mbox_mem_pool);
+        mempool_free(mbox, cq->phba->mbox_mem_pool);
         return status;
 }
 
@@ -10134,8 +10120,7 @@ lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
         }
         /* Remove mq from any list */
         list_del_init(&mq->list);
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, mq->phba->mbox_mem_pool);
+        mempool_free(mbox, mq->phba->mbox_mem_pool);
         return status;
 }
 
@@ -10187,8 +10172,7 @@ lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
         }
         /* Remove wq from any list */
         list_del_init(&wq->list);
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, wq->phba->mbox_mem_pool);
+        mempool_free(mbox, wq->phba->mbox_mem_pool);
         return status;
 }
 
@@ -10258,8 +10242,7 @@ lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
         }
         list_del_init(&hrq->list);
         list_del_init(&drq->list);
-        if (rc != MBX_TIMEOUT)
-                mempool_free(mbox, hrq->phba->mbox_mem_pool);
+        mempool_free(mbox, hrq->phba->mbox_mem_pool);
         return status;
 }
 
@@ -10933,6 +10916,7 @@ lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
         first_iocbq = lpfc_sli_get_iocbq(vport->phba);
         if (first_iocbq) {
                 /* Initialize the first IOCB. */
+                first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
                 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
                 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
                 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
@@ -10945,6 +10929,8 @@ lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
                 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
                                                         LPFC_DATA_BUF_SIZE;
                 first_iocbq->iocb.un.rcvels.remoteID = sid;
+                first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+                                bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
         }
         iocbq = first_iocbq;
         /*
@@ -10961,6 +10947,8 @@ lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
                         iocbq->iocb.ulpBdeCount++;
                         iocbq->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize =
                                                         LPFC_DATA_BUF_SIZE;
+                        first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+                                bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
                 } else {
                         iocbq = lpfc_sli_get_iocbq(vport->phba);
                         if (!iocbq) {
@@ -10978,6 +10966,8 @@ lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
                         iocbq->iocb.ulpBdeCount = 1;
                         iocbq->iocb.un.cont64[0].tus.f.bdeSize =
                                                         LPFC_DATA_BUF_SIZE;
+                        first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+                                bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
                         iocbq->iocb.un.rcvels.remoteID = sid;
                         list_add_tail(&iocbq->list, &first_iocbq->list);
                 }