diff options
| -rw-r--r-- | drivers/net/virtio_net.c | 34 | ||||
| -rw-r--r-- | include/linux/virtio_net.h | 11 |
2 files changed, 44 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 67bb583b7fc9..1abea9dc6f0f 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -37,7 +37,7 @@ module_param(gso, bool, 0444); #define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN) #define GOOD_COPY_LEN 128 -#define VIRTNET_SEND_COMMAND_SG_MAX 0 +#define VIRTNET_SEND_COMMAND_SG_MAX 1 struct virtnet_info { @@ -658,6 +658,36 @@ static int virtnet_set_tx_csum(struct net_device *dev, u32 data) return ethtool_op_set_tx_hw_csum(dev, data); } +static void virtnet_set_rx_mode(struct net_device *dev) +{ + struct virtnet_info *vi = netdev_priv(dev); + struct scatterlist sg; + u8 promisc, allmulti; + + /* We can't dynamicaly set ndo_set_rx_mode, so return gracefully */ + if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_RX)) + return; + + promisc = ((dev->flags & IFF_PROMISC) != 0 || dev->uc_count > 0); + allmulti = ((dev->flags & IFF_ALLMULTI) != 0 || dev->mc_count > 0); + + sg_set_buf(&sg, &promisc, sizeof(promisc)); + + if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, + VIRTIO_NET_CTRL_RX_PROMISC, + &sg, 1, 0)) + dev_warn(&dev->dev, "Failed to %sable promisc mode.\n", + promisc ? "en" : "dis"); + + sg_set_buf(&sg, &allmulti, sizeof(allmulti)); + + if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, + VIRTIO_NET_CTRL_RX_ALLMULTI, + &sg, 1, 0)) + dev_warn(&dev->dev, "Failed to %sable allmulti mode.\n", + allmulti ? "en" : "dis"); +} + static struct ethtool_ops virtnet_ethtool_ops = { .set_tx_csum = virtnet_set_tx_csum, .set_sg = ethtool_op_set_sg, @@ -682,6 +712,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_start_xmit = start_xmit, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, + .ndo_set_rx_mode = virtnet_set_rx_mode, .ndo_change_mtu = virtnet_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = virtnet_netpoll, @@ -897,6 +928,7 @@ static unsigned int features[] = { VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6, VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */ VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ, + VIRTIO_NET_F_CTRL_RX, VIRTIO_F_NOTIFY_ON_EMPTY, }; diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 245eda829aa8..63b2461a40f1 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -24,6 +24,7 @@ #define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */ #define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */ +#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ @@ -77,4 +78,14 @@ typedef __u8 virtio_net_ctrl_ack; #define VIRTIO_NET_OK 0 #define VIRTIO_NET_ERR 1 +/* + * Control the RX mode, ie. promisucous and allmulti. PROMISC and + * ALLMULTI commands require an "out" sg entry containing a 1 byte + * state value, zero = disable, non-zero = enable. These commands + * are supported with the VIRTIO_NET_F_CTRL_RX feature. + */ +#define VIRTIO_NET_CTRL_RX 0 + #define VIRTIO_NET_CTRL_RX_PROMISC 0 + #define VIRTIO_NET_CTRL_RX_ALLMULTI 1 + #endif /* _LINUX_VIRTIO_NET_H */ |