]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/scsi/lpfc/lpfc_scsi.c
[SCSI] lpfc 8.1.12 : Round 2 of Miscellaneous fixes
[linux-2.6-omap-h63xx.git] / drivers / scsi / lpfc / lpfc_scsi.c
index 28dbd6be72ee39b61d09ad297021cbdc44f9637a..efd1cf638b8c547deedaeea3519766f75df4f11a 100644 (file)
@@ -292,13 +292,13 @@ lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
 }
 
 static void
-lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
+lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb)
 {
        struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
        struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd;
        struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
        struct lpfc_hba *phba = lpfc_cmd->scsi_hba;
-       uint32_t fcpi_parm = lpfc_cmd->cur_iocbq.iocb.un.fcpi.fcpi_parm;
+       uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm;
        uint32_t resp_info = fcprsp->rspStatus2;
        uint32_t scsi_status = fcprsp->rspStatus3;
        uint32_t *lp;
@@ -359,6 +359,24 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
                                be32_to_cpu(fcpcmd->fcpDl), cmnd->resid,
                                fcpi_parm, cmnd->cmnd[0], cmnd->underflow);
 
+               /*
+                * If there is an under run check if under run reported by
+                * storage array is same as the under run reported by HBA.
+                * If this is not same, there is a dropped frame.
+                */
+               if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
+                       fcpi_parm &&
+                       (cmnd->resid != fcpi_parm)) {
+                       lpfc_printf_log(phba, KERN_WARNING,
+                               LOG_FCP | LOG_FCP_ERROR,
+                               "%d:0735 FCP Read Check Error and Underrun "
+                               "Data: x%x x%x x%x x%x\n", phba->brd_no,
+                               be32_to_cpu(fcpcmd->fcpDl),
+                               cmnd->resid,
+                               fcpi_parm, cmnd->cmnd[0]);
+                       cmnd->resid = cmnd->request_bufflen;
+                       host_status = DID_ERROR;
+               }
                /*
                 * The cmnd->underflow is the minimum number of bytes that must
                 * be transfered for this command.  Provided a sense condition
@@ -439,7 +457,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
                switch (lpfc_cmd->status) {
                case IOSTAT_FCP_RSP_ERROR:
                        /* Call FCP RSP handler to determine result */
-                       lpfc_handle_fcp_err(lpfc_cmd);
+                       lpfc_handle_fcp_err(lpfc_cmd,pIocbOut);
                        break;
                case IOSTAT_NPORT_BSY:
                case IOSTAT_FABRIC_BSY:
@@ -673,6 +691,18 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba,
        return (1);
 }
 
+static void
+lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba,
+                       struct lpfc_iocbq *cmdiocbq,
+                       struct lpfc_iocbq *rspiocbq)
+{
+       struct lpfc_scsi_buf *lpfc_cmd =
+               (struct lpfc_scsi_buf *) cmdiocbq->context1;
+       if (lpfc_cmd)
+               lpfc_release_scsi_buf(phba, lpfc_cmd);
+       return;
+}
+
 static int
 lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba,
                    unsigned  tgt_id, unsigned int lun,
@@ -709,8 +739,9 @@ lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba,
                                       &phba->sli.ring[phba->sli.fcp_ring],
                                       iocbq, iocbqrsp, lpfc_cmd->timeout);
        if (ret != IOCB_SUCCESS) {
+               if (ret == IOCB_TIMEDOUT)
+                       iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl;
                lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
-               ret = FAILED;
        } else {
                ret = SUCCESS;
                lpfc_cmd->result = iocbqrsp->iocb.un.ulpWord[4];
@@ -977,7 +1008,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 }
 
 static int
-lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
+lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
 {
        struct Scsi_Host *shost = cmnd->device->host;
        struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
@@ -987,6 +1018,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
        struct lpfc_nodelist *pnode = rdata->pnode;
        uint32_t cmd_result = 0, cmd_status = 0;
        int ret = FAILED;
+       int iocb_status = IOCB_SUCCESS;
        int cnt, loopcnt;
 
        lpfc_block_error_handler(cmnd);
@@ -998,7 +1030,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
         */
        while ( 1 ) {
                if (!pnode)
-                       return FAILED;
+                       goto out;
 
                if (pnode->nlp_state != NLP_STE_MAPPED_NODE) {
                        spin_unlock_irq(phba->host->host_lock);
@@ -1016,7 +1048,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
                        }
                        pnode = rdata->pnode;
                        if (!pnode)
-                               return FAILED;
+                               goto out;
                }
                if (pnode->nlp_state == NLP_STE_MAPPED_NODE)
                        break;
@@ -1031,7 +1063,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
        lpfc_cmd->rdata = rdata;
 
        ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, cmnd->device->lun,
-                                          FCP_LUN_RESET);
+                                          FCP_TARGET_RESET);
        if (!ret)
                goto out_free_scsi_buf;
 
@@ -1043,16 +1075,21 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
                goto out_free_scsi_buf;
 
        lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
-                       "%d:0703 Issue LUN Reset to TGT %d LUN %d "
-                       "Data: x%x x%x\n", phba->brd_no, cmnd->device->id,
+                       "%d:0703 Issue target reset to TGT %d LUN %d rpi x%x "
+                       "nlp_flag x%x\n", phba->brd_no, cmnd->device->id,
                        cmnd->device->lun, pnode->nlp_rpi, pnode->nlp_flag);
 
-       ret = lpfc_sli_issue_iocb_wait(phba,
+       iocb_status = lpfc_sli_issue_iocb_wait(phba,
                                       &phba->sli.ring[phba->sli.fcp_ring],
                                       iocbq, iocbqrsp, lpfc_cmd->timeout);
-       if (ret == IOCB_SUCCESS)
-               ret = SUCCESS;
 
+       if (iocb_status == IOCB_TIMEDOUT)
+               iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl;
+
+       if (iocb_status == IOCB_SUCCESS)
+               ret = SUCCESS;
+       else
+               ret = iocb_status;
 
        cmd_result = iocbqrsp->iocb.un.ulpWord[4];
        cmd_status = iocbqrsp->iocb.ulpStatus;
@@ -1090,18 +1127,19 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 
        if (cnt) {
                lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
-                       "%d:0719 LUN Reset I/O flush failure: cnt x%x\n",
+                       "%d:0719 device reset I/O flush failure: cnt x%x\n",
                        phba->brd_no, cnt);
                ret = FAILED;
        }
 
 out_free_scsi_buf:
-       lpfc_release_scsi_buf(phba, lpfc_cmd);
-
+       if (iocb_status != IOCB_TIMEDOUT) {
+               lpfc_release_scsi_buf(phba, lpfc_cmd);
+       }
        lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
-                       "%d:0713 SCSI layer issued LUN reset (%d, %d) "
-                       "Data: x%x x%x x%x\n",
-                       phba->brd_no, cmnd->device->id,cmnd->device->lun,
+                       "%d:0713 SCSI layer issued device reset (%d, %d) "
+                       "return x%x status x%x result x%x\n",
+                       phba->brd_no, cmnd->device->id, cmnd->device->lun,
                        ret, cmd_status, cmd_result);
 
 out:
@@ -1110,7 +1148,7 @@ out:
 }
 
 static int
-lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
+lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
 {
        struct Scsi_Host *shost = cmnd->device->host;
        struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
@@ -1155,13 +1193,17 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
                                "%d:0700 Bus Reset on target %d failed\n",
                                phba->brd_no, i);
                        err_count++;
+                       break;
                }
        }
 
+       if (ret != IOCB_TIMEDOUT)
+               lpfc_release_scsi_buf(phba, lpfc_cmd);
+
        if (err_count == 0)
                ret = SUCCESS;
-
-       lpfc_release_scsi_buf(phba, lpfc_cmd);
+       else
+               ret = FAILED;
 
        /*
         * All outstanding txcmplq I/Os should have been aborted by
@@ -1302,8 +1344,8 @@ struct scsi_host_template lpfc_template = {
        .info                   = lpfc_info,
        .queuecommand           = lpfc_queuecommand,
        .eh_abort_handler       = lpfc_abort_handler,
-       .eh_device_reset_handler= lpfc_reset_lun_handler,
-       .eh_bus_reset_handler   = lpfc_reset_bus_handler,
+       .eh_device_reset_handler= lpfc_device_reset_handler,
+       .eh_bus_reset_handler   = lpfc_bus_reset_handler,
        .slave_alloc            = lpfc_slave_alloc,
        .slave_configure        = lpfc_slave_configure,
        .slave_destroy          = lpfc_slave_destroy,