diff options
Diffstat (limited to 'drivers/scsi/bnx2fc/bnx2fc_io.c')
| -rw-r--r-- | drivers/scsi/bnx2fc/bnx2fc_io.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index ed880891cb7c..d2cabc9bede8 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -1871,7 +1871,15 @@ int bnx2fc_queuecommand(struct Scsi_Host *host, rc = SCSI_MLQUEUE_TARGET_BUSY; goto exit_qcmd; } - + if (tgt->retry_delay_timestamp) { + if (time_after(jiffies, tgt->retry_delay_timestamp)) { + tgt->retry_delay_timestamp = 0; + } else { + /* If retry_delay timer is active, flow off the ML */ + rc = SCSI_MLQUEUE_TARGET_BUSY; + goto exit_qcmd; + } + } io_req = bnx2fc_cmd_alloc(tgt); if (!io_req) { rc = SCSI_MLQUEUE_HOST_BUSY; @@ -1961,6 +1969,15 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req, " fcp_resid = 0x%x\n", io_req->cdb_status, io_req->fcp_resid); sc_cmd->result = (DID_OK << 16) | io_req->cdb_status; + + if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL || + io_req->cdb_status == SAM_STAT_BUSY) { + /* Set the jiffies + retry_delay_timer * 100ms + for the rport/tgt */ + tgt->retry_delay_timestamp = jiffies + + fcp_rsp->retry_delay_timer * HZ / 10; + } + } if (io_req->fcp_resid) scsi_set_resid(sc_cmd, io_req->fcp_resid); |