Author: nbd Date: 2014-09-10 14:56:24 +0200 (Wed, 10 Sep 2014) New Revision: 42457
Modified: trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c Log: ar71xx: ack completed tx descriptors only after the full frame has been completed 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 2014-09-10 12:56:19 UTC (rev 42456) +++ trunk/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c 2014-09-10 12:56:24 UTC (rev 42457) @@ -901,11 +901,12 @@ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); int sent = 0; int bytes_compl = 0; + int n = 0; DBG("%s: processing TX ring\n", ag->dev->name); - while (ring->dirty != ring->curr) { - unsigned int i = ring->dirty % ring->size; + while (ring->dirty + n != ring->curr) { + unsigned int i = (ring->dirty + n) % ring->size; struct ag71xx_desc *desc = ring->buf[i].desc; struct sk_buff *skb = ring->buf[i].skb; @@ -916,17 +917,22 @@ break; } - ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); + n++; + if (!skb) + continue; - if (skb) { - dev_kfree_skb_any(skb); - ring->buf[i].skb = NULL; + dev_kfree_skb_any(skb); + ring->buf[i].skb = NULL; - bytes_compl += ring->buf[i].len; - sent++; + bytes_compl += ring->buf[i].len; + + sent++; + ring->dirty += n; + + while (n > 0) { + ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); + n--; } - - ring->dirty++; } DBG("%s: %d packets sent out\n", ag->dev->name, sent); _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
