diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-07 14:40:05 +0000 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-07 14:40:05 +0000 |
commit | 123656d4cc8c946f578ebd18c2050f5251720428 (patch) | |
tree | 3d5432eff034a3b9cfdc98b37e245abe5695342d /drivers/scsi/lpfc/lpfc_sli.c | |
parent | a62c80e559809e6c7851ec04d30575e85ad6f6ed (diff) | |
parent | 0aec63e67c69545ca757a73a66f5dcf05fa484bf (diff) |
Merge with Linus' kernel.
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
-rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 217 |
1 files changed, 196 insertions, 21 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index e2c08c5d83f..7b785ade8b0 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -886,6 +886,182 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, return rc; } +static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring) +{ + struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; + /* + * Ring <ringno> handler: portRspPut <portRspPut> is bigger then + * rsp ring <portRspMax> + */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0312 Ring %d handler: portRspPut %d " + "is bigger then rsp ring %d\n", + phba->brd_no, pring->ringno, + le32_to_cpu(pgp->rspPutInx), + pring->numRiocb); + + phba->hba_state = LPFC_HBA_ERROR; + + /* + * All error attention handlers are posted to + * worker thread + */ + phba->work_ha |= HA_ERATT; + phba->work_hs = HS_FFER3; + if (phba->work_wait) + wake_up(phba->work_wait); + + return; +} + +void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba) +{ + struct lpfc_sli * psli = &phba->sli; + struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING]; + IOCB_t *irsp = NULL; + IOCB_t *entry = NULL; + struct lpfc_iocbq *cmdiocbq = NULL; + struct lpfc_iocbq rspiocbq; + struct lpfc_pgp *pgp; + uint32_t status; + uint32_t portRspPut, portRspMax; + int type; + uint32_t rsp_cmpl = 0; + void __iomem *to_slim; + uint32_t ha_copy; + + pring->stats.iocb_event++; + + /* The driver assumes SLI-2 mode */ + pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; + + /* + * The next available response entry should never exceed the maximum + * entries. If it does, treat it as an adapter hardware error. + */ + portRspMax = pring->numRiocb; + portRspPut = le32_to_cpu(pgp->rspPutInx); + if (unlikely(portRspPut >= portRspMax)) { + lpfc_sli_rsp_pointers_error(phba, pring); + return; + } + + rmb(); + while (pring->rspidx != portRspPut) { + + entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); + + if (++pring->rspidx >= portRspMax) + pring->rspidx = 0; + + lpfc_sli_pcimem_bcopy((uint32_t *) entry, + (uint32_t *) &rspiocbq.iocb, + sizeof (IOCB_t)); + irsp = &rspiocbq.iocb; + type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); + pring->stats.iocb_rsp++; + rsp_cmpl++; + + if (unlikely(irsp->ulpStatus)) { + /* Rsp ring <ringno> error: IOCB */ + lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, + "%d:0326 Rsp Ring %d error: IOCB Data: " + "x%x x%x x%x x%x x%x x%x x%x x%x\n", + phba->brd_no, pring->ringno, + irsp->un.ulpWord[0], + irsp->un.ulpWord[1], + irsp->un.ulpWord[2], + irsp->un.ulpWord[3], + irsp->un.ulpWord[4], + irsp->un.ulpWord[5], + *(((uint32_t *) irsp) + 6), + *(((uint32_t *) irsp) + 7)); + } + + switch (type) { + case LPFC_ABORT_IOCB: + case LPFC_SOL_IOCB: + /* + * Idle exchange closed via ABTS from port. No iocb + * resources need to be recovered. + */ + if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { + printk(KERN_INFO "%s: IOCB cmd 0x%x processed." + " Skipping completion\n", __FUNCTION__, + irsp->ulpCommand); + break; + } + + cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, + &rspiocbq); + if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { + (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, + &rspiocbq); + } + break; + default: + if (irsp->ulpCommand == CMD_ADAPTER_MSG) { + char adaptermsg[LPFC_MAX_ADPTMSG]; + memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); + memcpy(&adaptermsg[0], (uint8_t *) irsp, + MAX_MSG_DATA); + dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", + phba->brd_no, adaptermsg); + } else { + /* Unknown IOCB command */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0321 Unknown IOCB command " + "Data: x%x, x%x x%x x%x x%x\n", + phba->brd_no, type, + irsp->ulpCommand, + irsp->ulpStatus, + irsp->ulpIoTag, + irsp->ulpContext); + } + break; + } + + /* + * The response IOCB has been processed. Update the ring + * pointer in SLIM. If the port response put pointer has not + * been updated, sync the pgp->rspPutInx and fetch the new port + * response put pointer. + */ + to_slim = phba->MBslimaddr + + (SLIMOFF + (pring->ringno * 2) + 1) * 4; + writeb(pring->rspidx, to_slim); + + if (pring->rspidx == portRspPut) + portRspPut = le32_to_cpu(pgp->rspPutInx); + } + + ha_copy = readl(phba->HAregaddr); + ha_copy >>= (LPFC_FCP_RING * 4); + + if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { + pring->stats.iocb_rsp_full++; + status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); + writel(status, phba->CAregaddr); + readl(phba->CAregaddr); + } + if ((ha_copy & HA_R0CE_RSP) && + (pring->flag & LPFC_CALL_RING_AVAILABLE)) { + pring->flag &= ~LPFC_CALL_RING_AVAILABLE; + pring->stats.iocb_cmd_empty++; + + /* Force update of the local copy of cmdGetInx */ + pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); + lpfc_sli_resume_iocb(phba, pring); + + if ((pring->lpfc_sli_cmd_available)) + (pring->lpfc_sli_cmd_available) (phba, pring); + + } + + return; +} + /* * This routine presumes LPFC_FCP_RING handling and doesn't bother * to check it explicitly. @@ -917,24 +1093,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, portRspMax = pring->numRiocb; portRspPut = le32_to_cpu(pgp->rspPutInx); if (unlikely(portRspPut >= portRspMax)) { - /* - * Ring <ringno> handler: portRspPut <portRspPut> is bigger then - * rsp ring <portRspMax> - */ - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "%d:0312 Ring %d handler: portRspPut %d " - "is bigger then rsp ring %d\n", - phba->brd_no, pring->ringno, portRspPut, - portRspMax); - - phba->hba_state = LPFC_HBA_ERROR; - - /* All error attention handlers are posted to worker thread */ - phba->work_ha |= HA_ERATT; - phba->work_hs = HS_FFER3; - if (phba->work_wait) - wake_up(phba->work_wait); - + lpfc_sli_rsp_pointers_error(phba, pring); spin_unlock_irqrestore(phba->host->host_lock, iflag); return 1; } @@ -947,6 +1106,10 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, * network byte order and pci byte orders are different. */ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); + + if (++pring->rspidx >= portRspMax) + pring->rspidx = 0; + lpfc_sli_pcimem_bcopy((uint32_t *) entry, (uint32_t *) &rspiocbq.iocb, sizeof (IOCB_t)); @@ -1020,9 +1183,6 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, * been updated, sync the pgp->rspPutInx and fetch the new port * response put pointer. */ - if (++pring->rspidx >= portRspMax) - pring->rspidx = 0; - to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) + 1) * 4; writel(pring->rspidx, to_slim); @@ -2615,6 +2775,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, DECLARE_WAIT_QUEUE_HEAD(done_q); long timeleft, timeout_req = 0; int retval = IOCB_SUCCESS; + uint32_t creg_val; /* * If the caller has provided a response iocbq buffer, then context2 @@ -2630,6 +2791,13 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, piocb->context_un.wait_queue = &done_q; piocb->iocb_flag &= ~LPFC_IO_WAKE; + if (phba->cfg_poll & DISABLE_FCP_RING_INT) { + creg_val = readl(phba->HCregaddr); + creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); + writel(creg_val, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + } + retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); if (retval == IOCB_SUCCESS) { timeout_req = timeout * HZ; @@ -2663,6 +2831,13 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, retval = IOCB_ERROR; } + if (phba->cfg_poll & DISABLE_FCP_RING_INT) { + creg_val = readl(phba->HCregaddr); + creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); + writel(creg_val, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + } + if (prspiocbq) piocb->context2 = NULL; |