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| author | Felix Fietkau <nbd@openwrt.org> | 2016-02-11 15:01:48 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2016-02-11 15:01:48 +0000 |
| commit | b7a2c533dab6c21614887670f01c5b94a8bd88fc (patch) | |
| tree | 28277e1f6d80f8e9e3cf6528b70ffb8f311f8fc3 | |
| parent | 2c17b8bcc52de38f4a81ec408028472b2a76d57b (diff) | |
| download | upstream-b7a2c533dab6c21614887670f01c5b94a8bd88fc.tar.gz upstream-b7a2c533dab6c21614887670f01c5b94a8bd88fc.tar.bz2 upstream-b7a2c533dab6c21614887670f01c5b94a8bd88fc.zip | |
ag71xx: optimize icache footprint of the receive poll function
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48691
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c index 6eafceef03..2f270c024f 100644 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c @@ -995,15 +995,18 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit) struct ag71xx_ring *ring = &ag->rx_ring; int offset = ag71xx_buffer_offset(ag); unsigned int pktlen_mask = ag->desc_pktlen_mask; + struct sk_buff_head queue; + struct sk_buff *skb; int done = 0; DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n", dev->name, limit, ring->curr, ring->dirty); + skb_queue_head_init(&queue); + while (done < limit) { unsigned int i = ring->curr % ring->size; struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - struct sk_buff *skb; int pktlen; int err = 0; @@ -1044,8 +1047,7 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit) } else { skb->dev = dev; skb->ip_summed = CHECKSUM_NONE; - skb->protocol = eth_type_trans(skb, dev); - netif_receive_skb(skb); + __skb_queue_tail(&queue, skb); } next: @@ -1057,6 +1059,11 @@ next: ag71xx_ring_rx_refill(ag); + while ((skb = __skb_dequeue(&queue)) != NULL) { + skb->protocol = eth_type_trans(skb, dev); + netif_receive_skb(skb); + } + DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n", dev->name, ring->curr, ring->dirty, done); |