bmips: batch process eth_type_trans() in rx path

Improve cache efficiency by running eth_type_trans() in its own loop.

Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>

diff --git a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
index b7485ca51ae2e59aee4ef3a0a810ca894f80a13f..9b7c21c019c40637ccd480e8e1c06d4f5251e771 100644 (file)
--- a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
+++ b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
@@ -335,6 +335,7 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget)
        struct bcm6368_enetsw *priv = netdev_priv(dev);
        struct device *kdev = &priv->pdev->dev;
        struct list_head rx_list;
+       struct sk_buff *skb;
        int processed = 0;
 
        INIT_LIST_HEAD(&rx_list);
@@ -347,7 +348,6 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget)
        do {
                struct bcm6368_enetsw_desc *desc;
                unsigned int frag_size;
-               struct sk_buff *skb;
                unsigned char *buf;
                int desc_idx;
                u32 len_stat;
@@ -418,12 +418,13 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget)
 
                skb_reserve(skb, NET_SKB_PAD);
                skb_put(skb, len);
-               skb->protocol = eth_type_trans(skb, dev);
                dev->stats.rx_packets++;
                dev->stats.rx_bytes += len;
                list_add_tail(&skb->list, &rx_list);
        } while (processed < budget);
 
+       list_for_each_entry(skb, &rx_list, list)
+               skb->protocol = eth_type_trans(skb, dev);
        netif_receive_skb_list(&rx_list);
        priv->rx_desc_count -= processed;