summaryrefslogtreecommitdiff
path: root/drivers/scsi/qla2xxx
diff options
context:
space:
mode:
authorHimanshu Madhani <himanshu.madhani@qlogic.com>2016-01-27 20:03:30 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2016-02-24 05:27:02 +0300
commitf198cafaa41a23274b88dbed7cd909fa5e91b1ee (patch)
treeaf3e7b2b8ca41c24c5154788ad2221d38c7b841c /drivers/scsi/qla2xxx
parent9f8d3d5bc50f2fefe6d4dc488e03ad7e4dfd8cbc (diff)
downloadlinux-f198cafaa41a23274b88dbed7cd909fa5e91b1ee.tar.xz
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>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h1
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c11
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c7
3 files changed, 18 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 0103e468e357..1bfdcdf39678 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -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);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index fa015d6ea049..7f6698a4cfe8 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -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);
}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f6c7ce35b542..8bcf3f84f935 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -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
*/