s390/qeth: let isolation mode override HW offload restrictions

When a device is configured with ISOLATION_MODE_FWD, traffic never goes through the internal switch. Don't apply the offload restrictions in this case. Fixes: c619e9a ("s390/qeth: don't use restricted offloads for local traffic") Signed-off-by: Julian Wiedmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
berg · Jun 19, 2020 · 8cebedb · 8cebedb
1 parent e2dfcfb
commit 8cebedb
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
@@ -6837,9 +6837,11 @@ netdev_features_t qeth_features_check(struct sk_buff *skb,
 				      struct net_device *dev,
 				      netdev_features_t features)
 {
+	struct qeth_card *card = dev->ml_priv;
+
 	/* Traffic with local next-hop is not eligible for some offloads: */
-	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		struct qeth_card *card = dev->ml_priv;
+	if (skb->ip_summed == CHECKSUM_PARTIAL &&
+	    card->options.isolation != ISOLATION_MODE_FWD) {
 		netdev_features_t restricted = 0;
 
 		if (skb_is_gso(skb) && !netif_needs_gso(skb, features))