[SCSI] qla2xxx: Adjust FCP_RSP response-info field check after TMF completion.
Based on reading of the FCP2/4 specification, the driver cannot
expect the storage device to send FCP_RSP information. Instead,
the driver should interpret the data which is present in the frame
to base decisions on the success or failure of the system.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index b4a82b5..7a7c0ec 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2462,22 +2462,19 @@
"-- completion status (%x).\n", __func__,
vha->host_no, le16_to_cpu(sts->comp_status)));
rval = QLA_FUNCTION_FAILED;
- } else if (!(le16_to_cpu(sts->scsi_status) &
- SS_RESPONSE_INFO_LEN_VALID)) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- no response info (%x).\n", __func__, vha->host_no,
- le16_to_cpu(sts->scsi_status)));
- rval = QLA_FUNCTION_FAILED;
- } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- not enough response info (%d).\n", __func__,
- vha->host_no, le32_to_cpu(sts->rsp_data_len)));
- rval = QLA_FUNCTION_FAILED;
- } else if (sts->data[3]) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- response (%x).\n", __func__,
- vha->host_no, sts->data[3]));
- rval = QLA_FUNCTION_FAILED;
+ } else if (le16_to_cpu(sts->scsi_status) &
+ SS_RESPONSE_INFO_LEN_VALID) {
+ if (le32_to_cpu(sts->rsp_data_len) < 4) {
+ DEBUG2_3_11(printk("%s(%ld): ignoring inconsistent "
+ "data length -- not enough response info (%d).\n",
+ __func__, vha->host_no,
+ le32_to_cpu(sts->rsp_data_len)));
+ } else if (sts->data[3]) {
+ DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
+ "-- response (%x).\n", __func__,
+ vha->host_no, sts->data[3]));
+ rval = QLA_FUNCTION_FAILED;
+ }
}
/* Issue marker IOCB. */