[PATCH iwl-next v6 7/9] igc: Block setting preemptible traffic class in taprio
Faizal Rahim
faizal.abdul.rahim at linux.intel.com
Thu Feb 27 06:01:55 PST 2025
Since preemptible tc implementation is not ready yet, block it from being
set in taprio. The existing code already blocks it in mqprio.
Signed-off-by: Faizal Rahim <faizal.abdul.rahim at linux.intel.com>
---
drivers/net/ethernet/intel/igc/igc_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 5a6648a12a53..e6a398dbf09b 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -6408,6 +6408,10 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
if (!validate_schedule(adapter, qopt))
return -EINVAL;
+ /* preemptible isn't supported yet */
+ if (qopt->mqprio.preemptible_tcs)
+ return -EOPNOTSUPP;
+
igc_ptp_read(adapter, &now);
if (igc_tsn_is_taprio_activated_by_user(adapter) &&
--
2.34.1
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