diff options
| author | Ravi Anand <ravi.anand@qlogic.com> | 2006-05-17 15:08:55 -0700 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-05-20 09:41:02 -0500 |
| commit | ed17c71b5d11327efd40666fd621486f964fae4f (patch) | |
| tree | 63fa5ae594acb8a66361ead95f43001fd0630945 /drivers/scsi | |
| parent | 45aeaf1e8e4552ef82d3ff7a06e526e6d635f767 (diff) | |
[SCSI] qla2xxx: Use FW calculated residual count for underrun handling.
With ISP24XX and ISP54XX parts.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_fw.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 16 |
2 files changed, 13 insertions, 5 deletions
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index 1ee58ad2f4d..d2f5870628d 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -463,7 +463,7 @@ struct sts_entry_24xx { uint16_t comp_status; /* Completion status. */ uint16_t ox_id; /* OX_ID used by the firmware. */ - uint32_t residual_len; /* Residual transfer length. */ + uint32_t residual_len; /* FW calc residual transfer length. */ uint16_t reserved_1; uint16_t state_flags; /* State flags. */ diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 2003dbb7057..40325ec7005 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -805,7 +805,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) uint16_t scsi_status; uint8_t lscsi_status; int32_t resid; - uint32_t sense_len, rsp_info_len, resid_len; + uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len; uint8_t *rsp_info, *sense_data; sts = (sts_entry_t *) pkt; @@ -859,11 +859,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) fcport = sp->fcport; - sense_len = rsp_info_len = resid_len = 0; + sense_len = rsp_info_len = resid_len = fw_resid_len = 0; if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { sense_len = le32_to_cpu(sts24->sense_len); rsp_info_len = le32_to_cpu(sts24->rsp_data_len); resid_len = le32_to_cpu(sts24->rsp_residual_count); + fw_resid_len = le32_to_cpu(sts24->residual_len); rsp_info = sts24->data; sense_data = sts24->data; host_to_fcp_swap(sts24->data, sizeof(sts24->data)); @@ -963,14 +964,21 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) case CS_DATA_UNDERRUN: resid = resid_len; + /* Use F/W calculated residual length. */ + if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) + resid = fw_resid_len; + if (scsi_status & SS_RESIDUAL_UNDER) { cp->resid = resid; CMD_RESID_LEN(cp) = resid; } else { DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d) UNDERRUN status detected " - "0x%x-0x%x.\n", ha->host_no, cp->device->id, - cp->device->lun, comp_status, scsi_status)); + "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x " + "os_underflow=0x%x\n", ha->host_no, + cp->device->id, cp->device->lun, comp_status, + scsi_status, resid_len, resid, cp->cmnd[0], + cp->underflow)); } |