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hv_netvsc: Allow scatter-gather feature to be tunable

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In a previous patch, the NETIF_F_SG was missing after the code changes.
That caused the SG feature to be "fixed". This patch includes it into
hw_features, so it is tunable again.

Fixes: 23312a3be9 ("netvsc: negotiate checksum and segmentation parameters")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haiyang Zhang 2019-09-05 23:23:07 +00:00 committed by David S. Miller
parent 22c63d9c94
commit b441f79532
3 changed files with 4 additions and 3 deletions

2
drivers/net/hyperv/hyperv_net.h
View File

@ -822,7 +822,7 @@ 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_TSO6 | NETIF_F_LRO | NETIF_F_SG)
#define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
#define VRSS_CHANNEL_MAX 64

4
drivers/net/hyperv/netvsc_drv.c
View File

@ -2313,8 +2313,8 @@ static int netvsc_probe(struct hv_device *dev,
/* hw_features computed in rndis_netdev_set_hwcaps() */
net->features = net->hw_features |
NETIF_F_HIGHDMA | NETIF_F_SG |
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX;
net->vlan_features = net->features;
netdev_lockdep_set_classes(net);

1
drivers/net/hyperv/rndis_filter.c
View File

@ -1207,6 +1207,7 @@ 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;
if ((hwcaps.csum.ip4_txcsum & NDIS_TXCSUM_ALL_TCP4) == NDIS_TXCSUM_ALL_TCP4) {
/* Can checksum TCP */