[PATCH iwl-next v10 12/14] igc: block setting preemptible traffic class in taprio
From: Faizal Rahim <hidden>
Date: 2025-03-18 03:09:58
Also in:
bpf, intel-wired-lan, lkml, netdev
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Since preemptible tc implementation is not ready yet, block it from being set in taprio. The existing code already blocks it in mqprio. Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Faizal Rahim <redacted> --- 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 71c377cb7a88..fc945c5b7c70 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c@@ -6486,6 +6486,10 @@ 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) &&
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2.34.1