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authorStephen Hemminger <sthemmin@microsoft.com>2019-11-24 02:50:17 +0300
committerJakub Kicinski <jakub.kicinski@netronome.com>2019-11-24 05:42:41 +0300
commit6f3aeb1ba05d41320e6cf9a60f698d9c4e44348e (patch)
treebb60ebfc5f2b7cf2bdcc77b8f96324f4aa398309 /drivers/net/hyperv
parentfc5141cb6a60afd81cf53cf4f9bd986f1b846010 (diff)
downloadlinux-6f3aeb1ba05d41320e6cf9a60f698d9c4e44348e.tar.xz
hv_netvsc: make recording RSS hash depend on feature flag
The recording of RSS hash should be controlled by NETIF_F_RXHASH. Fixes: 1fac7ca4e63b ("hv_netvsc: record hardware hash in skb") Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/hyperv_net.h3
-rw-r--r--drivers/net/hyperv/netvsc_drv.c2
-rw-r--r--drivers/net/hyperv/rndis_filter.c1
3 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 034dbab7aa80..250bd90627a5 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -823,7 +823,8 @@ struct nvsp_message {
#define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
- NETIF_F_TSO6 | NETIF_F_LRO | NETIF_F_SG)
+ NETIF_F_TSO6 | NETIF_F_LRO | \
+ NETIF_F_SG | NETIF_F_RXHASH)
#define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
#define VRSS_CHANNEL_MAX 64
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 5fa5c49e481b..868e22e286ca 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -803,7 +803,7 @@ static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net,
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
- if (hash_info)
+ if (hash_info && (net->features & NETIF_F_RXHASH))
skb_set_hash(skb, *hash_info, PKT_HASH_TYPE_L4);
if (vlan) {
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c06178380ac8..206b4e77eaf0 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1214,6 +1214,7 @@ static int rndis_netdev_set_hwcaps(struct rndis_device *rndis_device,
/* Compute tx offload settings based on hw capabilities */
net->hw_features |= NETIF_F_RXCSUM;
net->hw_features |= NETIF_F_SG;
+ net->hw_features |= NETIF_F_RXHASH;
if ((hwcaps.csum.ip4_txcsum & NDIS_TXCSUM_ALL_TCP4) == NDIS_TXCSUM_ALL_TCP4) {
/* Can checksum TCP */