diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 83 |
1 files changed, 75 insertions, 8 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 39dddcd8b3cb..eff8fef4f775 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -285,9 +285,9 @@ static inline u32 netvsc_get_hash( else if (flow.basic.n_proto == htons(ETH_P_IPV6)) hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd); else - hash = 0; + return 0; - skb_set_hash(skb, hash, PKT_HASH_TYPE_L3); + __skb_set_sw_hash(skb, hash, false); } return hash; @@ -766,6 +766,7 @@ static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net, const struct ndis_pkt_8021q_info *vlan = nvchan->rsc.vlan; const struct ndis_tcp_ip_checksum_info *csum_info = nvchan->rsc.csum_info; + const u32 *hash_info = nvchan->rsc.hash_info; struct sk_buff *skb; int i; @@ -795,14 +796,16 @@ static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net, skb->protocol == htons(ETH_P_IP)) netvsc_comp_ipcsum(skb); - /* Do L4 checksum offload if enabled and present. - */ + /* Do L4 checksum offload if enabled and present. */ if (csum_info && (net->features & NETIF_F_RXCSUM)) { if (csum_info->receive.tcp_checksum_succeeded || csum_info->receive.udp_checksum_succeeded) skb->ip_summed = CHECKSUM_UNNECESSARY; } + if (hash_info && (net->features & NETIF_F_RXHASH)) + skb_set_hash(skb, *hash_info, PKT_HASH_TYPE_L4); + if (vlan) { u16 vlan_tci = vlan->vlanid | (vlan->pri << VLAN_PRIO_SHIFT) | (vlan->cfi ? VLAN_CFI_MASK : 0); @@ -982,7 +985,7 @@ static int netvsc_attach(struct net_device *ndev, if (netif_running(ndev)) { ret = rndis_filter_open(nvdev); if (ret) - return ret; + goto err; rdev = nvdev->extension; if (!rdev->link_state) @@ -990,6 +993,13 @@ static int netvsc_attach(struct net_device *ndev, } return 0; + +err: + netif_device_detach(ndev); + + rndis_filter_device_remove(hdev, nvdev); + + return ret; } static int netvsc_set_channels(struct net_device *net, @@ -1807,8 +1817,10 @@ static int netvsc_set_features(struct net_device *ndev, ret = rndis_filter_set_offload_params(ndev, nvdev, &offloads); - if (ret) + if (ret) { features ^= NETIF_F_LRO; + ndev->features = features; + } syncvf: if (!vf_netdev) @@ -2335,8 +2347,6 @@ static int netvsc_probe(struct hv_device *dev, NETIF_F_HW_VLAN_CTAG_RX; net->vlan_features = net->features; - netdev_lockdep_set_classes(net); - /* MTU range: 68 - 1500 or 65521 */ net->min_mtu = NETVSC_MTU_MIN; if (nvdev->nvsp_version >= NVSP_PROTOCOL_VERSION_2) @@ -2414,6 +2424,61 @@ static int netvsc_remove(struct hv_device *dev) return 0; } +static int netvsc_suspend(struct hv_device *dev) +{ + struct net_device_context *ndev_ctx; + struct net_device *vf_netdev, *net; + struct netvsc_device *nvdev; + int ret; + + net = hv_get_drvdata(dev); + + ndev_ctx = netdev_priv(net); + cancel_delayed_work_sync(&ndev_ctx->dwork); + + rtnl_lock(); + + nvdev = rtnl_dereference(ndev_ctx->nvdev); + if (nvdev == NULL) { + ret = -ENODEV; + goto out; + } + + vf_netdev = rtnl_dereference(ndev_ctx->vf_netdev); + if (vf_netdev) + netvsc_unregister_vf(vf_netdev); + + /* Save the current config info */ + ndev_ctx->saved_netvsc_dev_info = netvsc_devinfo_get(nvdev); + + ret = netvsc_detach(net, nvdev); +out: + rtnl_unlock(); + + return ret; +} + +static int netvsc_resume(struct hv_device *dev) +{ + struct net_device *net = hv_get_drvdata(dev); + struct net_device_context *net_device_ctx; + struct netvsc_device_info *device_info; + int ret; + + rtnl_lock(); + + net_device_ctx = netdev_priv(net); + device_info = net_device_ctx->saved_netvsc_dev_info; + + ret = netvsc_attach(net, device_info); + + rtnl_unlock(); + + kfree(device_info); + net_device_ctx->saved_netvsc_dev_info = NULL; + + return ret; +} static const struct hv_vmbus_device_id id_table[] = { /* Network guid */ { HV_NIC_GUID, }, @@ -2428,6 +2493,8 @@ static struct hv_driver netvsc_drv = { .id_table = id_table, .probe = netvsc_probe, .remove = netvsc_remove, + .suspend = netvsc_suspend, + .resume = netvsc_resume, .driver = { .probe_type = PROBE_FORCE_SYNCHRONOUS, }, |