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qla2xxx: Allow fw to hold status before sending ABTS response. 

Set bit 12 of additional firmware options 3 to let firmware
hold status IOCB until ABTS response is received from Target.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Himanshu Madhani 2016-01-27 12:03:30 -05:00 committed by Martin K. Petersen
parent 9f8d3d5bc5
commit f198cafaa4
3 changed files with 18 additions and 1 deletions
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1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -121,6 +121,7 @@ extern int ql2xmdcapmask;
extern int ql2xmdenable;
extern int ql2xexlogins;
extern int ql2xexchoffld;
extern int ql2xfwholdabts;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);

11
drivers/scsi/qla2xxx/qla_init.c
View File

@ -2062,6 +2062,10 @@ qla24xx_update_fw_options(scsi_qla_host_t *vha)
if (IS_P3P_TYPE(ha))
return;
/* Hold status IOCBs until ABTS response received. */
if (ql2xfwholdabts)
ha->fw_options[3] |= BIT_12;
/* Update Serial Link options. */
if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
return;
@ -6410,12 +6414,17 @@ qla81xx_update_fw_options(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Hold status IOCBs until ABTS response received. */
if (ql2xfwholdabts)
ha->fw_options[3] |= BIT_12;
if (!ql2xetsenable)
return;
goto out;
/* Enable ETS Burst. */
memset(ha->fw_options, 0, sizeof(ha->fw_options));
ha->fw_options[2] |= BIT_9;
out:
qla2x00_set_fw_options(vha, ha->fw_options);
}

7
drivers/scsi/qla2xxx/qla_os.c
View File

@ -233,6 +233,13 @@ MODULE_PARM_DESC(ql2xexchoffld,
"Number of exchanges to offload. "
"0 (Default)- Disabled.");
int ql2xfwholdabts = 0;
module_param(ql2xfwholdabts, int, S_IRUGO);
MODULE_PARM_DESC(ql2xfwholdabts,
"Allow FW to hold status IOCB until ABTS rsp received. "
"0 (Default) Do not set fw option. "
"1 - Set fw option to hold ABTS.");
/*
* SCSI host template entry points
*/