diff options
| author | Prasanna Mumbai <prasanna.mumbai@qlogic.com> | 2011-05-18 08:17:06 +0200 |
|---|---|---|
| committer | James Bottomley <jbottomley@parallels.com> | 2011-05-24 18:39:29 +0200 |
| commit | 6d78bd56be54286a72413db82d87fc371867629f (patch) | |
| tree | 8c7d09eee7b8cd8622d8af8e401ac244c482b10e | |
| parent | [SCSI] qla4xxx: Dump HW/FW reg to figure out what caused FW to be hung for IS... (diff) | |
| download | linux-6d78bd56be54286a72413db82d87fc371867629f.tar.xz linux-6d78bd56be54286a72413db82d87fc371867629f.zip | |
[SCSI] qla4xxx: Complete the cmd if sense_len is zero
Complete the cmd if sense length is zero. For cases where sense
data spans across multiple iocb's by FW, we need to hold on to the
I/O (ha->status_srb != NULL) till we have processed them all and
copied the sense data from internal buffer to scsi_cmd sense buffer.
Signed-off-by: Prasanna Mumbai <prasanna.mumbai@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_isr.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 67d6651cdb36..0e72921c752d 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -25,9 +25,14 @@ static void qla4xxx_copy_sense(struct scsi_qla_host *ha, memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); sense_len = le16_to_cpu(sts_entry->senseDataByteCnt); - if (sense_len == 0) + if (sense_len == 0) { + DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%d: %s:" + " sense len 0\n", ha->host_no, + cmd->device->channel, cmd->device->id, + cmd->device->lun, __func__)); + ha->status_srb = NULL; return; - + } /* Save total available sense length, * not to exceed cmd's sense buffer size */ sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE); |