From 9c2face68782d5b7a322df6aade0512b47d29f10 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Jan 2008 01:53:18 -0500 Subject: [SCSI] lpfc 8.2.4 : Fix Unsolicited Data items Fix Drivers Unsolicited CT command handling - we did not handle multiframe sequences well. Fix error due to delay in replenishing buffers for unsolicited data. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_ct.c | 92 ++++++++++++++---------------------- drivers/scsi/lpfc/lpfc_hw.h | 29 ++++++++++++ drivers/scsi/lpfc/lpfc_sli.c | 109 ++++++++++++++++++++++--------------------- drivers/scsi/lpfc/lpfc_sli.h | 2 + 4 files changed, 121 insertions(+), 111 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index 7a8b3b90af71..3759ae1dc5e7 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -57,45 +57,27 @@ static char *lpfc_release_version = LPFC_DRIVER_VERSION; -/* - * lpfc_ct_unsol_event - */ static void -lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, - struct lpfc_dmabuf *mp, uint32_t size) +lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, + struct lpfc_dmabuf *mp, uint32_t size) { if (!mp) { - printk(KERN_ERR "%s (%d): Unsolited CT, no buffer, " - "piocbq = %p, status = x%x, mp = %p, size = %d\n", - __FUNCTION__, __LINE__, - piocbq, piocbq->iocb.ulpStatus, mp, size); + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, + "0146 Ignoring unsolicted CT No HBQ " + "status = x%x\n", + piocbq->iocb.ulpStatus); } - - printk(KERN_ERR "%s (%d): Ignoring unsolicted CT piocbq = %p, " - "buffer = %p, size = %d, status = x%x\n", - __FUNCTION__, __LINE__, - piocbq, mp, size, - piocbq->iocb.ulpStatus); - + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, + "0145 Ignoring unsolicted CT HBQ Size:%d " + "status = x%x\n", + size, piocbq->iocb.ulpStatus); } static void -lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, - struct lpfc_dmabuf *mp, uint32_t size) +lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, + struct lpfc_dmabuf *mp, uint32_t size) { - if (!mp) { - printk(KERN_ERR "%s (%d): Unsolited CT, no " - "HBQ buffer, piocbq = %p, status = x%x\n", - __FUNCTION__, __LINE__, - piocbq, piocbq->iocb.ulpStatus); - } else { - lpfc_ct_unsol_buffer(phba, piocbq, mp, size); - printk(KERN_ERR "%s (%d): Ignoring unsolicted CT " - "piocbq = %p, buffer = %p, size = %d, " - "status = x%x\n", - __FUNCTION__, __LINE__, - piocbq, mp, size, piocbq->iocb.ulpStatus); - } + lpfc_ct_ignore_hbq_buffer(phba, piocbq, mp, size); } void @@ -109,11 +91,8 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *iocbq; dma_addr_t paddr; uint32_t size; - struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; - struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; - - piocbq->context2 = NULL; - piocbq->context3 = NULL; + struct list_head head; + struct lpfc_dmabuf *bdeBuf; if (unlikely(icmd->ulpStatus == IOSTAT_NEED_BUFFER)) { lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); @@ -122,7 +101,7 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, /* Not enough posted buffers; Try posting more buffers */ phba->fc_stat.NoRcvBuf++; if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) - lpfc_post_buffer(phba, pring, 0, 1); + lpfc_post_buffer(phba, pring, 2, 1); return; } @@ -133,38 +112,34 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, return; if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { - list_for_each_entry(iocbq, &piocbq->list, list) { + INIT_LIST_HEAD(&head); + list_add_tail(&head, &piocbq->list); + list_for_each_entry(iocbq, &head, list) { icmd = &iocbq->iocb; - if (icmd->ulpBdeCount == 0) { - printk(KERN_ERR "%s (%d): Unsolited CT, no " - "BDE, iocbq = %p, status = x%x\n", - __FUNCTION__, __LINE__, - iocbq, iocbq->iocb.ulpStatus); + if (icmd->ulpBdeCount == 0) continue; - } - + bdeBuf = iocbq->context2; + iocbq->context2 = NULL; size = icmd->un.cont64[0].tus.f.bdeSize; - lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf1, size); - lpfc_in_buf_free(phba, bdeBuf1); + lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf, size); + lpfc_in_buf_free(phba, bdeBuf); if (icmd->ulpBdeCount == 2) { - lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf2, - size); - lpfc_in_buf_free(phba, bdeBuf2); + bdeBuf = iocbq->context3; + iocbq->context3 = NULL; + size = icmd->unsli3.rcvsli3.bde2.tus.f.bdeSize; + lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf, + size); + lpfc_in_buf_free(phba, bdeBuf); } } + list_del(&head); } else { struct lpfc_iocbq *next; list_for_each_entry_safe(iocbq, next, &piocbq->list, list) { icmd = &iocbq->iocb; - if (icmd->ulpBdeCount == 0) { - printk(KERN_ERR "%s (%d): Unsolited CT, no " - "BDE, iocbq = %p, status = x%x\n", - __FUNCTION__, __LINE__, - iocbq, iocbq->iocb.ulpStatus); - continue; - } - + if (icmd->ulpBdeCount == 0) + lpfc_ct_unsol_buffer(phba, piocbq, NULL, 0); for (i = 0; i < icmd->ulpBdeCount; i++) { paddr = getPaddr(icmd->un.cont64[i].addrHigh, icmd->un.cont64[i].addrLow); @@ -176,6 +151,7 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, } list_del(&iocbq->list); lpfc_sli_release_iocbq(phba, iocbq); + lpfc_post_buffer(phba, pring, i, 1); } } } diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index f78d23a3b667..041f83e7634a 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -2994,6 +2994,34 @@ typedef struct { #endif } RCV_ELS_REQ64; +/* IOCB Command template for RCV_SEQ64 */ +struct rcv_seq64 { + struct ulp_bde64 elsReq; + uint32_t hbq_1; + uint32_t parmRo; +#ifdef __BIG_ENDIAN_BITFIELD + uint32_t rctl:8; + uint32_t type:8; + uint32_t dfctl:8; + uint32_t ls:1; + uint32_t fs:1; + uint32_t rsvd2:3; + uint32_t si:1; + uint32_t bc:1; + uint32_t rsvd3:1; +#else /* __LITTLE_ENDIAN_BITFIELD */ + uint32_t rsvd3:1; + uint32_t bc:1; + uint32_t si:1; + uint32_t rsvd2:3; + uint32_t fs:1; + uint32_t ls:1; + uint32_t dfctl:8; + uint32_t type:8; + uint32_t rctl:8; +#endif +}; + /* IOCB Command template for all 64 bit FCP Initiator commands */ typedef struct { ULP_BDL bdl; @@ -3085,6 +3113,7 @@ typedef struct _IOCB { /* IOCB structure */ FCPT_FIELDS64 fcpt64; /* FCP 64 bit target template */ ASYNCSTAT_FIELDS asyncstat; /* async_status iocb */ QUE_XRI64_CX_FIELDS quexri64cx; /* que_xri64_cx fields */ + struct rcv_seq64 rcvseq64; /* RCV_SEQ64 and RCV_CONT64 */ uint32_t ulpWord[IOCB_WORD_SZ - 2]; /* generic 6 'words' */ } un; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 5a2cb484e137..584c5451641f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -955,6 +955,8 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, match = 0; irsp = &(saveq->iocb); + if (irsp->ulpStatus == IOSTAT_NEED_BUFFER) + return 1; if (irsp->ulpCommand == CMD_ASYNC_STATUS) { if (pring->lpfc_sli_rcv_async_status) pring->lpfc_sli_rcv_async_status(phba, pring, saveq); @@ -970,36 +972,7 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, return 1; } - if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) - || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) - || (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX) - || (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX)) { - Rctl = FC_ELS_REQ; - Type = FC_ELS_DATA; - } else { - w5p = - (WORD5 *) & (saveq->iocb.un. - ulpWord[5]); - Rctl = w5p->hcsw.Rctl; - Type = w5p->hcsw.Type; - - /* Firmware Workaround */ - if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && - (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || - irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { - Rctl = FC_ELS_REQ; - Type = FC_ELS_DATA; - w5p->hcsw.Rctl = Rctl; - w5p->hcsw.Type = Type; - } - } - if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { - struct lpfc_hbq_entry *hbqe_1, *hbqe_2; - hbqe_1 = (struct lpfc_hbq_entry *) &saveq->iocb.un.ulpWord[0]; - hbqe_2 = (struct lpfc_hbq_entry *) &saveq->iocb. - unsli3.sli3Words[4]; - if (irsp->ulpBdeCount != 0) { saveq->context2 = lpfc_sli_get_buff(phba, pring, irsp->un.ulpWord[3]); @@ -1011,7 +984,6 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, "an unsolicited iocb. tag 0x%x\n", pring->ringno, irsp->un.ulpWord[3]); - } if (irsp->ulpBdeCount == 2) { saveq->context3 = lpfc_sli_get_buff(phba, pring, @@ -1026,16 +998,11 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, irsp->unsli3.sli3Words[7]); } list_for_each_entry(iocbq, &saveq->list, list) { - hbqe_1 = (struct lpfc_hbq_entry *) &iocbq->iocb. - un.ulpWord[0]; - hbqe_2 = (struct lpfc_hbq_entry *) &iocbq->iocb. - unsli3.sli3Words[4]; irsp = &(iocbq->iocb); - if (irsp->ulpBdeCount != 0) { iocbq->context2 = lpfc_sli_get_buff(phba, pring, irsp->un.ulpWord[3]); - if (!saveq->context2) + if (!iocbq->context2) lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -1047,7 +1014,7 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, if (irsp->ulpBdeCount == 2) { iocbq->context3 = lpfc_sli_get_buff(phba, pring, irsp->unsli3.sli3Words[7]); - if (!saveq->context3) + if (!iocbq->context3) lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -1059,6 +1026,49 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, } } } + if (irsp->ulpBdeCount != 0 && + (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || + irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { + int found = 0; + + /* search continue save q for same XRI */ + list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { + if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { + list_add_tail(&saveq->list, &iocbq->list); + found = 1; + break; + } + } + if (!found) + list_add_tail(&saveq->clist, + &pring->iocb_continue_saveq); + if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { + list_del_init(&iocbq->clist); + saveq = iocbq; + irsp = &(saveq->iocb); + } else + return 0; + } + if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || + (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || + (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { + Rctl = FC_ELS_REQ; + Type = FC_ELS_DATA; + } else { + w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); + Rctl = w5p->hcsw.Rctl; + Type = w5p->hcsw.Type; + + /* Firmware Workaround */ + if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && + (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || + irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { + Rctl = FC_ELS_REQ; + Type = FC_ELS_DATA; + w5p->hcsw.Rctl = Rctl; + w5p->hcsw.Type = Type; + } + } /* unSolicited Responses */ if (pring->prt[0].profile) { @@ -1069,12 +1079,9 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, } else { /* We must search, based on rctl / type for the right routine */ - for (i = 0; i < pring->num_mask; - i++) { - if ((pring->prt[i].rctl == - Rctl) - && (pring->prt[i]. - type == Type)) { + for (i = 0; i < pring->num_mask; i++) { + if ((pring->prt[i].rctl == Rctl) + && (pring->prt[i].type == Type)) { if (pring->prt[i].lpfc_sli_rcv_unsol_event) (pring->prt[i].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); @@ -1641,12 +1648,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); - if (list_empty(&(pring->iocb_continueq))) { - list_add(&rspiocbp->list, &(pring->iocb_continueq)); - } else { - list_add_tail(&rspiocbp->list, - &(pring->iocb_continueq)); - } + list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); pring->iocb_continueq_cnt++; if (irsp->ulpLe) { @@ -1711,17 +1713,17 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); if (type == LPFC_SOL_IOCB) { - spin_unlock_irqrestore(&phba->hbalock, - iflag); + spin_unlock_irqrestore(&phba->hbalock, iflag); rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); spin_lock_irqsave(&phba->hbalock, iflag); } else if (type == LPFC_UNSOL_IOCB) { - spin_unlock_irqrestore(&phba->hbalock, - iflag); + spin_unlock_irqrestore(&phba->hbalock, iflag); rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); spin_lock_irqsave(&phba->hbalock, iflag); + if (!rc) + free_saveq = 0; } else if (type == LPFC_ABORT_IOCB) { if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && ((cmdiocbp = @@ -3238,6 +3240,7 @@ lpfc_sli_queue_setup(struct lpfc_hba *phba) INIT_LIST_HEAD(&pring->txq); INIT_LIST_HEAD(&pring->txcmplq); INIT_LIST_HEAD(&pring->iocb_continueq); + INIT_LIST_HEAD(&pring->iocb_continue_saveq); INIT_LIST_HEAD(&pring->postbufq); } spin_unlock_irq(&phba->hbalock); diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index 1796473ad65e..7249fd252cbb 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -33,6 +33,7 @@ typedef enum _lpfc_ctx_cmd { struct lpfc_iocbq { /* lpfc_iocbqs are used in double linked lists */ struct list_head list; + struct list_head clist; uint16_t iotag; /* pre-assigned IO tag */ uint16_t rsvd1; @@ -160,6 +161,7 @@ struct lpfc_sli_ring { struct list_head iocb_continueq; uint16_t iocb_continueq_cnt; /* current length of queue */ uint16_t iocb_continueq_max; /* max length */ + struct list_head iocb_continue_saveq; struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK]; uint32_t num_mask; /* number of mask entries in prt array */ -- cgit v1.2.2