Commit 6d78bd56 authored May 17, 2011 by Prasanna Mumbai Committed by James Bottomley May 24, 2011

[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>

parent 68d92ebf

drivers/scsi/qla4xxx/ql4_isr.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -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);