Commit f9468e8d authored Oct 08, 2015 by Yuval Mintz Committed by David S. Miller Oct 11, 2015

bnx2x: Prevent UDP 4-tuple configurations on older adapters



Configuring 4-tuple RSS hsahing for UDP
[E.g., by using `ethtool -N <interface> rx-flow-hash udp4 sdfn']
on a 57710/57711 adapter would cause it to assert as HW does not
support such a configuration.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5edc11ab

drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -3351,6 +3351,13 @@ static int bnx2x_set_rss_flags(struct bnx2x bp, struct ethtool_rxnfc info)
		udp_rss_requested = 0;
		else
		return -EINVAL;

		if (CHIP_IS_E1x(bp) && udp_rss_requested) {
		DP(BNX2X_MSG_ETHTOOL,
		"57710, 57711 boards don't support RSS according to UDP 4-tuple\n");
		return -EINVAL;
		}

		if ((info->flow_type == UDP_V4_FLOW) &&
		(bp->rss_conf_obj.udp_rss_v4 != udp_rss_requested)) {
		bp->rss_conf_obj.udp_rss_v4 = udp_rss_requested;