[PATCH] lpfc 8.1.3: Fix polling mode panic

[linux-2.6-omap-h63xx.git] / drivers / scsi / lpfc / lpfc_sli.c

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index d6ffe26ae123076070b0838140679d5b5fd997fb..764aadbec71b5096ea5320e0a35eef35b8c2b70e 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -766,7 +766,9 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
        }
        /* unSolicited Responses */
        if (pring->prt[0].profile) {
-               (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq);
+               if (pring->prt[0].lpfc_sli_rcv_unsol_event)
+                       (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
+                                                                       saveq);
                match = 1;
        } else {
                /* We must search, based on rctl / type
@@ -777,8 +779,9 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                             Rctl)
                            && (pring->prt[i].
                                type == Type)) {
-                               (pring->prt[i].lpfc_sli_rcv_unsol_event)
-                                       (phba, pring, saveq);
+                               if (pring->prt[i].lpfc_sli_rcv_unsol_event)
+                                       (pring->prt[i].lpfc_sli_rcv_unsol_event)
+                                                       (phba, pring, saveq);
                                match = 1;
                                break;
                        }
@@ -1151,12 +1154,17 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
                        cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
                                                         &rspiocbq);
                        if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
-                               spin_unlock_irqrestore(
-                                      phba->host->host_lock, iflag);
-                               (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
-                                                     &rspiocbq);
-                               spin_lock_irqsave(phba->host->host_lock,
-                                                 iflag);
+                               if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+                                       (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+                                                             &rspiocbq);
+                               } else {
+                                       spin_unlock_irqrestore(
+                                               phba->host->host_lock, iflag);
+                                       (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+                                                             &rspiocbq);
+                                       spin_lock_irqsave(phba->host->host_lock,
+                                                         iflag);
+                               }
                        }
                        break;
                default:
@@ -2377,6 +2385,37 @@ lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
        return IOCB_BUSY;
 }
 
+static int
+lpfc_extra_ring_setup( struct lpfc_hba *phba)
+{
+       struct lpfc_sli *psli;
+       struct lpfc_sli_ring *pring;
+
+       psli = &phba->sli;
+
+       /* Adjust cmd/rsp ring iocb entries more evenly */
+       pring = &psli->ring[psli->fcp_ring];
+       pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+       pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+       pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+       pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+       pring = &psli->ring[1];
+       pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+       pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+       pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+       pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+       /* Setup default profile for this ring */
+       pring->iotag_max = 4096;
+       pring->num_mask = 1;
+       pring->prt[0].profile = 0;      /* Mask 0 */
+       pring->prt[0].rctl = FC_UNSOL_DATA;
+       pring->prt[0].type = 5;
+       pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
+       return 0;
+}
+
 int
 lpfc_sli_setup(struct lpfc_hba *phba)
 {
@@ -2460,6 +2499,8 @@ lpfc_sli_setup(struct lpfc_hba *phba)
                                "SLI2 SLIM Data: x%x x%x\n",
                                phba->brd_no, totiocb, MAX_SLI2_IOCB);
        }
+       if (phba->cfg_multi_ring_support == 2)
+               lpfc_extra_ring_setup(phba);
 
        return 0;
 }