6.4-stable review patch. If anyone has any objections, please let me know.
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From: Alex Austin alex.austin@amd.com
[ Upstream commit c4413a20fa6d7c4888009fb7dd391685f196cd36 ]
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 alex.austin@amd.com Acked-by: Edward Cree ecree.xilinx@gmail.com Reviewed-by: Pieter Jansen van Vuuren pieter.jansen-van-vuuren@amd.com Link: https://lore.kernel.org/r/20230824164657.42379-1-alex.austin@amd.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 0c40571133cb9..00cf6de3bb2be 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; }