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path: root/drivers/scsi/lpfc/lpfc_scsi.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 17e4974..b5ad187 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -40,11 +40,6 @@
#define LPFC_RESET_WAIT 2
#define LPFC_ABORT_WAIT 2
-static inline void lpfc_put_lun(struct fcp_cmnd *fcmd, unsigned int lun)
-{
- fcmd->fcpLunLsl = 0;
- fcmd->fcpLunMsl = swab16((uint16_t)lun);
-}
/*
* This routine allocates a scsi buffer, which contains all the necessary
@@ -238,6 +233,8 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * lpfc_cmd)
bpl->tus.f.bdeSize = scsi_cmnd->request_bufflen;
if (datadir == DMA_TO_DEVICE)
bpl->tus.f.bdeFlags = 0;
+ else
+ bpl->tus.f.bdeFlags = BUFF_USE_RCV;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
num_bde = 1;
bpl++;
@@ -245,8 +242,11 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * lpfc_cmd)
/*
* Finish initializing those IOCB fields that are dependent on the
- * scsi_cmnd request_buffer
+ * scsi_cmnd request_buffer. Note that the bdeSize is explicitly
+ * reinitialized since all iocb memory resources are used many times
+ * for transmit, receive, and continuation bpl's.
*/
+ iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64));
iocb_cmd->un.fcpi64.bdl.bdeSize +=
(num_bde * sizeof (struct ulp_bde64));
iocb_cmd->ulpBdeCount = 1;
@@ -445,8 +445,11 @@ lpfc_scsi_prep_cmnd(struct lpfc_hba * phba, struct lpfc_scsi_buf * lpfc_cmd,
int datadir = scsi_cmnd->sc_data_direction;
lpfc_cmd->fcp_rsp->rspSnsLen = 0;
+ /* clear task management bits */
+ lpfc_cmd->fcp_cmnd->fcpCntl2 = 0;
- lpfc_put_lun(lpfc_cmd->fcp_cmnd, lpfc_cmd->pCmd->device->lun);
+ int_to_scsilun(lpfc_cmd->pCmd->device->lun,
+ &lpfc_cmd->fcp_cmnd->fcp_lun);
memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16);
@@ -545,7 +548,8 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba,
piocb = &piocbq->iocb;
fcp_cmnd = lpfc_cmd->fcp_cmnd;
- lpfc_put_lun(lpfc_cmd->fcp_cmnd, lpfc_cmd->pCmd->device->lun);
+ int_to_scsilun(lpfc_cmd->pCmd->device->lun,
+ &lpfc_cmd->fcp_cmnd->fcp_lun);
fcp_cmnd->fcpCntl2 = task_mgmt_cmd;
piocb->ulpCommand = CMD_FCP_ICMND64_CR;
@@ -746,6 +750,10 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
cmnd->result = ScsiResult(DID_NO_CONNECT, 0);
goto out_fail_command;
}
+ else if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
+ cmnd->result = ScsiResult(DID_BUS_BUSY, 0);
+ goto out_fail_command;
+ }
/*
* The device is most likely recovered and the driver
* needs a bit more time to finish. Ask the midlayer
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