Author: nbd Date: 2016-02-11 16:01:48 +0100 (Thu, 11 Feb 2016) New Revision: 48691
Modified: trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c Log: ag71xx: optimize icache footprint of the receive poll function Signed-off-by: Felix Fietkau <[email protected]> Modified: trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c =================================================================== --- trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c 2016-02-11 15:00:19 UTC (rev 48690) +++ trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c 2016-02-11 15:01:48 UTC (rev 48691) @@ -995,15 +995,18 @@ 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 @@ } 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 @@ 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); _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
