From c4413a20fa6d7c4888009fb7dd391685f196cd36 Mon Sep 17 00:00:00 2001 From: Alex Austin Date: Thu, 24 Aug 2023 17:46:57 +0100 Subject: [PATCH] sfc: Check firmware supports Ethernet PTP filter Not all firmware variants support RSS filters. Do not fail all PTP functionality when raw ethernet PTP filters fail to insert. Fixes: e4616f64726b ("sfc: support PTP over Ethernet") Signed-off-by: Alex Austin Acked-by: Edward Cree Reviewed-by: Pieter Jansen van Vuuren Link: https://lore.kernel.org/r/20230824164657.42379-1-alex.austin@amd.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/sfc/ptp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 0c40571..00cf6de 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1485,7 +1485,9 @@ static int efx_ptp_insert_multicast_filters(struct efx_nic *efx) goto fail; rc = efx_ptp_insert_eth_multicast_filter(efx); - if (rc < 0) + + /* Not all firmware variants support this filter */ + if (rc < 0 && rc != -EPROTONOSUPPORT) goto fail; } -- 2.7.4