From 2162a4a1ed8b61afed3b76137aff3ea031d9c6a6 Mon Sep 17 00:00:00 2001 From: Daode Huang Date: Thu, 29 Sep 2016 18:09:15 +0100 Subject: [PATCH] net: hns: bug fix about broadcast/multicast packets When the dsaf mode receives a broadcast packet, it will filter the packet by comparing the received queue number and destination queue number(get from forwarding table), if they are the same, the packet will be filtered. Otherwise, the packet will be loopback. So this patch select queue 0 to send broadcast and multicast packets. Signed-off-by: Daode Huang Reviewed-by: Yisen Zhuang Signed-off-by: Salil Mehta Signed-off-by: Doug Ledford --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 09ed237f4b4c..5494e0e3fe8e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1597,6 +1597,21 @@ struct rtnl_link_stats64 *hns_nic_get_stats64(struct net_device *ndev, return stats; } +static u16 +hns_nic_select_queue(struct net_device *ndev, struct sk_buff *skb, + void *accel_priv, select_queue_fallback_t fallback) +{ + struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; + struct hns_nic_priv *priv = netdev_priv(ndev); + + /* fix hardware broadcast/multicast packets queue loopback */ + if (!AE_IS_VER1(priv->enet_ver) && + is_multicast_ether_addr(eth_hdr->h_dest)) + return 0; + else + return fallback(ndev, skb); +} + static const struct net_device_ops hns_nic_netdev_ops = { .ndo_open = hns_nic_net_open, .ndo_stop = hns_nic_net_stop, @@ -1612,6 +1627,7 @@ static const struct net_device_ops hns_nic_netdev_ops = { .ndo_poll_controller = hns_nic_poll_controller, #endif .ndo_set_rx_mode = hns_nic_set_rx_mode, + .ndo_select_queue = hns_nic_select_queue, }; static void hns_nic_update_link_status(struct net_device *netdev)