From 76f96b6dfddf7804b3d33ede60a0c63bae271361 Mon Sep 17 00:00:00 2001 From: James Smart Date: Tue, 17 Dec 2013 20:29:01 -0500 Subject: [PATCH] [SCSI] lpfc 8.3.44: Fixed IO hang when in msi mode. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_scsi.c | 18 ++++++++++++++++++ drivers/scsi/lpfc/lpfc_sli.c | 3 ++- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index b2ede05a5f0a..0b08188598cd 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -4782,6 +4782,24 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); if (err) { atomic_dec(&ndlp->cmd_pending); + lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, + "3376 FCP could not issue IOCB err %x" + "FCP cmd x%x <%d/%d> " + "sid: x%x did: x%x oxid: x%x " + "Data: x%x x%x x%x x%x\n", + err, cmnd->cmnd[0], + cmnd->device ? cmnd->device->id : 0xffff, + cmnd->device ? cmnd->device->lun : 0xffff, + vport->fc_myDID, ndlp->nlp_DID, + phba->sli_rev == LPFC_SLI_REV4 ? + lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, + lpfc_cmd->cur_iocbq.iocb.ulpContext, + lpfc_cmd->cur_iocbq.iocb.ulpIoTag, + lpfc_cmd->cur_iocbq.iocb.ulpTimeout, + (uint32_t) + (cmnd->request->timeout / 1000)); + + goto out_host_busy_free_buf; } if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 8f580fda443f..838e5b991851 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -8032,7 +8032,8 @@ lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba) struct lpfc_vector_map_info *cpup; int chann, cpu; - if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU) { + if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU + && phba->cfg_fcp_io_channel > 1) { cpu = smp_processor_id(); if (cpu < phba->sli4_hba.num_present_cpu) { cpup = phba->sli4_hba.cpu_map; -- 2.45.2