diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 414 |
1 files changed, 350 insertions, 64 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 35e3b96d4e07..049fb9a17b3f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -23,6 +23,7 @@ #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/delay.h> +#include <linux/slab.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -494,7 +495,7 @@ __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) * * Returns sglq ponter = success, NULL = Failure. **/ -static struct lpfc_sglq * +struct lpfc_sglq * __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) { uint16_t adj_xri; @@ -526,6 +527,7 @@ __lpfc_sli_get_sglq(struct lpfc_hba *phba) return NULL; adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; + sglq->state = SGL_ALLOCATED; return sglq; } @@ -580,15 +582,18 @@ __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) else sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); if (sglq) { - if (iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) { + if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) && + (sglq->state != SGL_XRI_ABORTED)) { spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, iflag); list_add(&sglq->list, &phba->sli4_hba.lpfc_abts_els_sgl_list); spin_unlock_irqrestore( &phba->sli4_hba.abts_sgl_list_lock, iflag); - } else + } else { + sglq->state = SGL_FREED; list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); + } } @@ -2258,41 +2263,56 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, spin_unlock_irqrestore(&phba->hbalock, iflag); } - if ((phba->sli_rev == LPFC_SLI_REV4) && - (saveq->iocb_flag & LPFC_EXCHANGE_BUSY)) { - /* Set cmdiocb flag for the exchange - * busy so sgl (xri) will not be - * released until the abort xri is - * received from hba, clear the - * LPFC_DRIVER_ABORTED bit in case - * it was driver initiated abort. - */ - spin_lock_irqsave(&phba->hbalock, - iflag); - cmdiocbp->iocb_flag &= - ~LPFC_DRIVER_ABORTED; - cmdiocbp->iocb_flag |= - LPFC_EXCHANGE_BUSY; - spin_unlock_irqrestore(&phba->hbalock, - iflag); - cmdiocbp->iocb.ulpStatus = - IOSTAT_LOCAL_REJECT; - cmdiocbp->iocb.un.ulpWord[4] = - IOERR_ABORT_REQUESTED; - /* - * For SLI4, irsiocb contains NO_XRI - * in sli_xritag, it shall not affect - * releasing sgl (xri) process. - */ - saveq->iocb.ulpStatus = - IOSTAT_LOCAL_REJECT; - saveq->iocb.un.ulpWord[4] = - IOERR_SLI_ABORTED; - spin_lock_irqsave(&phba->hbalock, - iflag); - saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; - spin_unlock_irqrestore(&phba->hbalock, - iflag); + if (phba->sli_rev == LPFC_SLI_REV4) { + if (saveq->iocb_flag & + LPFC_EXCHANGE_BUSY) { + /* Set cmdiocb flag for the + * exchange busy so sgl (xri) + * will not be released until + * the abort xri is received + * from hba. + */ + spin_lock_irqsave( + &phba->hbalock, iflag); + cmdiocbp->iocb_flag |= + LPFC_EXCHANGE_BUSY; + spin_unlock_irqrestore( + &phba->hbalock, iflag); + } + if (cmdiocbp->iocb_flag & + LPFC_DRIVER_ABORTED) { + /* + * Clear LPFC_DRIVER_ABORTED + * bit in case it was driver + * initiated abort. + */ + spin_lock_irqsave( + &phba->hbalock, iflag); + cmdiocbp->iocb_flag &= + ~LPFC_DRIVER_ABORTED; + spin_unlock_irqrestore( + &phba->hbalock, iflag); + cmdiocbp->iocb.ulpStatus = + IOSTAT_LOCAL_REJECT; + cmdiocbp->iocb.un.ulpWord[4] = + IOERR_ABORT_REQUESTED; + /* + * For SLI4, irsiocb contains + * NO_XRI in sli_xritag, it + * shall not affect releasing + * sgl (xri) process. + */ + saveq->iocb.ulpStatus = + IOSTAT_LOCAL_REJECT; + saveq->iocb.un.ulpWord[4] = + IOERR_SLI_ABORTED; + spin_lock_irqsave( + &phba->hbalock, iflag); + saveq->iocb_flag |= + LPFC_DELAY_MEM_FREE; + spin_unlock_irqrestore( + &phba->hbalock, iflag); + } } } (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); @@ -2515,14 +2535,16 @@ 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->hbalock, - iflag); - (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, - &rspiocbq); - spin_lock_irqsave(&phba->hbalock, - iflag); - } + if (unlikely(!cmdiocbq)) + break; + if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) + cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; + if (cmdiocbq->iocb_cmpl) { + spin_unlock_irqrestore(&phba->hbalock, iflag); + (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, + &rspiocbq); + spin_lock_irqsave(&phba->hbalock, iflag); + } break; case LPFC_UNSOL_IOCB: spin_unlock_irqrestore(&phba->hbalock, iflag); @@ -3091,6 +3113,12 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) /* Check to see if any errors occurred during init */ if ((status & HS_FFERM) || (i >= 20)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2751 Adapter failed to restart, " + "status reg x%x, FW Data: A8 x%x AC x%x\n", + status, + readl(phba->MBslimaddr + 0xa8), + readl(phba->MBslimaddr + 0xac)); phba->link_state = LPFC_HBA_ERROR; retval = 1; } @@ -3278,6 +3306,9 @@ lpfc_sli_brdkill(struct lpfc_hba *phba) if (retval != MBX_SUCCESS) { if (retval != MBX_BUSY) mempool_free(pmb, phba->mbox_mem_pool); + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2752 KILL_BOARD command failed retval %d\n", + retval); spin_lock_irq(&phba->hbalock); phba->link_flag &= ~LS_IGNORE_ERATT; spin_unlock_irq(&phba->hbalock); @@ -4035,7 +4066,7 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba) lpfc_sli_hba_setup_error: phba->link_state = LPFC_HBA_ERROR; - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0445 Firmware initialization failed\n"); return rc; } @@ -4388,7 +4419,13 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) spin_unlock_irq(&phba->hbalock); /* Read the port's service parameters. */ - lpfc_read_sparam(phba, mboxq, vport->vpi); + rc = lpfc_read_sparam(phba, mboxq, vport->vpi); + if (rc) { + phba->link_state = LPFC_HBA_ERROR; + rc = -ENOMEM; + goto out_free_vpd; + } + mboxq->vport = vport; rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); mp = (struct lpfc_dmabuf *) mboxq->context1; @@ -4483,6 +4520,10 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) /* Post receive buffers to the device */ lpfc_sli4_rb_setup(phba); + /* Reset HBA FCF states after HBA reset */ + phba->fcf.fcf_flag = 0; + phba->fcf.current_rec.flag = 0; + /* Start the ELS watchdog timer */ mod_timer(&vport->els_tmofunc, jiffies + HZ * (phba->fc_ratov * 2)); @@ -7436,6 +7477,7 @@ lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, { wait_queue_head_t *pdone_q; unsigned long iflags; + struct lpfc_scsi_buf *lpfc_cmd; spin_lock_irqsave(&phba->hbalock, iflags); cmdiocbq->iocb_flag |= LPFC_IO_WAKE; @@ -7443,6 +7485,14 @@ lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, &rspiocbq->iocb, sizeof(IOCB_t)); + /* Set the exchange busy flag for task management commands */ + if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) && + !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) { + lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf, + cur_iocbq); + lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY; + } + pdone_q = cmdiocbq->context_un.wait_queue; if (pdone_q) wake_up(pdone_q); @@ -9061,6 +9111,12 @@ lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, /* Fake the irspiocb and copy necessary response information */ lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe); + if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) { + spin_lock_irqsave(&phba->hbalock, iflags); + cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; + spin_unlock_irqrestore(&phba->hbalock, iflags); + } + /* Pass the cmd_iocb and the rsp state to the upper layer */ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); } @@ -11941,15 +11997,19 @@ lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, } /** - * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record. + * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan. * @phba: pointer to lpfc hba data structure. * @fcf_index: FCF table entry offset. * - * This routine is invoked to read up to @fcf_num of FCF record from the - * device starting with the given @fcf_index. + * This routine is invoked to scan the entire FCF table by reading FCF + * record and processing it one at a time starting from the @fcf_index + * for initial FCF discovery or fast FCF failover rediscovery. + * + * Return 0 if the mailbox command is submitted sucessfully, none 0 + * otherwise. **/ int -lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) +lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) { int rc = 0, error; LPFC_MBOXQ_t *mboxq; @@ -11961,17 +12021,17 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) "2000 Failed to allocate mbox for " "READ_FCF cmd\n"); error = -ENOMEM; - goto fail_fcfscan; + goto fail_fcf_scan; } /* Construct the read FCF record mailbox command */ - rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index); + rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); if (rc) { error = -EINVAL; - goto fail_fcfscan; + goto fail_fcf_scan; } /* Issue the mailbox command asynchronously */ mboxq->vport = phba->pport; - mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record; + mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec; rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) error = -EIO; @@ -11979,9 +12039,13 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) spin_lock_irq(&phba->hbalock); phba->hba_flag |= FCF_DISC_INPROGRESS; spin_unlock_irq(&phba->hbalock); + /* Reset FCF round robin index bmask for new scan */ + if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) + memset(phba->fcf.fcf_rr_bmask, 0, + sizeof(*phba->fcf.fcf_rr_bmask)); error = 0; } -fail_fcfscan: +fail_fcf_scan: if (error) { if (mboxq) lpfc_sli4_mbox_cmd_free(phba, mboxq); @@ -11994,6 +12058,181 @@ fail_fcfscan: } /** + * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf. + * @phba: pointer to lpfc hba data structure. + * @fcf_index: FCF table entry offset. + * + * This routine is invoked to read an FCF record indicated by @fcf_index + * and to use it for FLOGI round robin FCF failover. + * + * Return 0 if the mailbox command is submitted sucessfully, none 0 + * otherwise. + **/ +int +lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) +{ + int rc = 0, error; + LPFC_MBOXQ_t *mboxq; + + mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mboxq) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, + "2763 Failed to allocate mbox for " + "READ_FCF cmd\n"); + error = -ENOMEM; + goto fail_fcf_read; + } + /* Construct the read FCF record mailbox command */ + rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); + if (rc) { + error = -EINVAL; + goto fail_fcf_read; + } + /* Issue the mailbox command asynchronously */ + mboxq->vport = phba->pport; + mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec; + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) + error = -EIO; + else + error = 0; + +fail_fcf_read: + if (error && mboxq) + lpfc_sli4_mbox_cmd_free(phba, mboxq); + return error; +} + +/** + * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask. + * @phba: pointer to lpfc hba data structure. + * @fcf_index: FCF table entry offset. + * + * This routine is invoked to read an FCF record indicated by @fcf_index to + * determine whether it's eligible for FLOGI round robin failover list. + * + * Return 0 if the mailbox command is submitted sucessfully, none 0 + * otherwise. + **/ +int +lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) +{ + int rc = 0, error; + LPFC_MBOXQ_t *mboxq; + + mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mboxq) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, + "2758 Failed to allocate mbox for " + "READ_FCF cmd\n"); + error = -ENOMEM; + goto fail_fcf_read; + } + /* Construct the read FCF record mailbox command */ + rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); + if (rc) { + error = -EINVAL; + goto fail_fcf_read; + } + /* Issue the mailbox command asynchronously */ + mboxq->vport = phba->pport; + mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec; + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) + error = -EIO; + else + error = 0; + +fail_fcf_read: + if (error && mboxq) + lpfc_sli4_mbox_cmd_free(phba, mboxq); + return error; +} + +/** + * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index + * @phba: pointer to lpfc hba data structure. + * + * This routine is to get the next eligible FCF record index in a round + * robin fashion. If the next eligible FCF record index equals to the + * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF) + * shall be returned, otherwise, the next eligible FCF record's index + * shall be returned. + **/ +uint16_t +lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) +{ + uint16_t next_fcf_index; + + /* Search from the currently registered FCF index */ + next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, + LPFC_SLI4_FCF_TBL_INDX_MAX, + phba->fcf.current_rec.fcf_indx); + /* Wrap around condition on phba->fcf.fcf_rr_bmask */ + if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) + next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, + LPFC_SLI4_FCF_TBL_INDX_MAX, 0); + /* Round robin failover stop condition */ + if (next_fcf_index == phba->fcf.fcf_rr_init_indx) + return LPFC_FCOE_FCF_NEXT_NONE; + + return next_fcf_index; +} + +/** + * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index + * @phba: pointer to lpfc hba data structure. + * + * This routine sets the FCF record index in to the eligible bmask for + * round robin failover search. It checks to make sure that the index + * does not go beyond the range of the driver allocated bmask dimension + * before setting the bit. + * + * Returns 0 if the index bit successfully set, otherwise, it returns + * -EINVAL. + **/ +int +lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index) +{ + if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP, + "2610 HBA FCF index reached driver's " + "book keeping dimension: fcf_index:%d, " + "driver_bmask_max:%d\n", + fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); + return -EINVAL; + } + /* Set the eligible FCF record index bmask */ + set_bit(fcf_index, phba->fcf.fcf_rr_bmask); + + return 0; +} + +/** + * lpfc_sli4_fcf_rr_index_set - Clear bmask from eligible fcf record index + * @phba: pointer to lpfc hba data structure. + * + * This routine clears the FCF record index from the eligible bmask for + * round robin failover search. It checks to make sure that the index + * does not go beyond the range of the driver allocated bmask dimension + * before clearing the bit. + **/ +void +lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index) +{ + if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP, + "2762 HBA FCF index goes beyond driver's " + "book keeping dimension: fcf_index:%d, " + "driver_bmask_max:%d\n", + fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); + return; + } + /* Clear the eligible FCF record index bmask */ + clear_bit(fcf_index, phba->fcf.fcf_rr_bmask); +} + +/** * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table * @phba: pointer to lpfc hba data structure. * @@ -12014,21 +12253,40 @@ lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &redisc_fcf->header.cfg_shdr.response); if (shdr_status || shdr_add_status) { - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + lpfc_printf_log(phba, KERN_ERR, LOG_FIP, "2746 Requesting for FCF rediscovery failed " "status x%x add_status x%x\n", shdr_status, shdr_add_status); - /* - * Request failed, last resort to re-try current - * registered FCF entry - */ - lpfc_retry_pport_discovery(phba); - } else + if (phba->fcf.fcf_flag & FCF_ACVL_DISC) { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; + spin_unlock_irq(&phba->hbalock); + /* + * CVL event triggered FCF rediscover request failed, + * last resort to re-try current registered FCF entry. + */ + lpfc_retry_pport_discovery(phba); + } else { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; + spin_unlock_irq(&phba->hbalock); + /* + * DEAD FCF event triggered FCF rediscover request + * failed, last resort to fail over as a link down + * to FCF registration. + */ + lpfc_sli4_fcf_dead_failthrough(phba); + } + } else { + lpfc_printf_log(phba, KERN_INFO, LOG_FIP, + "2775 Start FCF rediscovery quiescent period " + "wait timer before scaning FCF table\n"); /* * Start FCF rediscovery wait timer for pending FCF * before rescan FCF record table. */ lpfc_fcf_redisc_wait_start_timer(phba); + } mempool_free(mbox, phba->mbox_mem_pool); } @@ -12047,6 +12305,9 @@ lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; int rc, length; + /* Cancel retry delay timers to all vports before FCF rediscover */ + lpfc_cancel_all_vport_retry_delay_timer(phba); + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -12078,6 +12339,31 @@ lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) } /** + * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event + * @phba: pointer to lpfc hba data structure. + * + * This function is the failover routine as a last resort to the FCF DEAD + * event when driver failed to perform fast FCF failover. + **/ +void +lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba) +{ + uint32_t link_state; + + /* + * Last resort as FCF DEAD event failover will treat this as + * a link down, but save the link state because we don't want + * it to be changed to Link Down unless it is already down. + */ + link_state = phba->link_state; + lpfc_linkdown(phba); + phba->link_state = link_state; + + /* Unregister FCF if no devices connected to it */ + lpfc_unregister_unused_fcf(phba); +} + +/** * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. * @phba: pointer to lpfc hba data structure. * |