This is a note to let you know that I've just added the patch titled
igc: allow BaseTime 0 enrollment for Qbv
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
igc-allow-basetime-0-enrollment-for-qbv.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 76e7fb3fca552bd69b6cce33a16a30976875db99
Author: Tan Tee Min <tee.min.tan@xxxxxxxxxxxxxxx>
Date: Fri Dec 9 12:15:20 2022 +0800
igc: allow BaseTime 0 enrollment for Qbv
[ Upstream commit e17090eb24944fbbe1f24d9f336d7bad4fbe47e8 ]
Introduce qbv_enable flag in igc_adapter struct to store the Qbv on/off.
So this allow the BaseTime to enroll with zero value.
Fixes: 61572d5f8f91 ("igc: Simplify TSN flags handling")
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@xxxxxxxxx>
Signed-off-by: Tan Tee Min <tee.min.tan@xxxxxxxxxxxxxxx>
Tested-by: Naama Meir <naamax.meir@xxxxxxxxxxxxxxx>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h
index 66a57636d329..df3e26c0cf01 100644
--- a/drivers/net/ethernet/intel/igc/igc.h
+++ b/drivers/net/ethernet/intel/igc/igc.h
@@ -184,6 +184,7 @@ struct igc_adapter {
ktime_t base_time;
ktime_t cycle_time;
+ bool qbv_enable;
/* OS defined structs */
struct pci_dev *pdev;
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 42386a0eef68..d666b3aab523 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -6037,6 +6037,8 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
u32 start_time = 0, end_time = 0;
size_t n;
+ adapter->qbv_enable = qopt->enable;
+
if (!qopt->enable)
return igc_tsn_clear_schedule(adapter);
diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.c b/drivers/net/ethernet/intel/igc/igc_tsn.c
index 4a019954cadb..356c7455c5ce 100644
--- a/drivers/net/ethernet/intel/igc/igc_tsn.c
+++ b/drivers/net/ethernet/intel/igc/igc_tsn.c
@@ -36,7 +36,7 @@ static unsigned int igc_tsn_new_flags(struct igc_adapter *adapter)
{
unsigned int new_flags = adapter->flags & ~IGC_FLAG_TSN_ANY_ENABLED;
- if (adapter->base_time)
+ if (adapter->qbv_enable)
new_flags |= IGC_FLAG_TSN_QBV_ENABLED;
if (is_any_launchtime(adapter))
