leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

scsi: qedf: Add dcbx_not_wait module parameter so we won't wait for DCBX convergence to start discovery

Browse Source 
This module parameter is to work around cases where we do not receive
the DCBX handler notification from qed but discovery is still possible
if we send out a FIP VLAN request irregardless of the DCBX state.

[mkp: zeroday warning]

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Chad Dupuis 2018-04-25 06:08:51 -07:00 committed by Martin K. Petersen
parent a93755cf7e
commit ba17d379c2
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/scsi/qedf/qedf_main.c
View File

@ -89,6 +89,11 @@ module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
"delay handling (default off).");
static bool qedf_dcbx_no_wait;
module_param_named(dcbx_no_wait, qedf_dcbx_no_wait, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(dcbx_no_wait, " Do not wait for DCBX convergence to start "
"sending FIP VLAN requests on link up (Default: off).");
static uint qedf_dp_module;
module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
@ -489,7 +494,8 @@ static void qedf_link_update(void *dev, struct qed_link_output *link)
atomic_set(&qedf->link_state, QEDF_LINK_UP);
qedf_update_link_speed(qedf, link);
if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE ||
qedf_dcbx_no_wait) {
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
"DCBx done.\n");
if (atomic_read(&qedf->link_down_tmo_valid) > 0)
@ -541,7 +547,8 @@ static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
if (atomic_read(&qedf->link_state) == QEDF_LINK_UP &&
!qedf_dcbx_no_wait) {
if (atomic_read(&qedf->link_down_tmo_valid) > 0)
queue_delayed_work(qedf->link_update_wq,
&qedf->link_recovery, 0);