From 766999085a9358a14ce2844f3c81a03c75b44fde Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Fri, 10 Feb 2012 14:56:47 +0000 Subject: [PATCH] ar71xx: ag71xx: add BQL support It will be usable only from linux-3.3. Based on a patch by Dave Taht SVN-Revision: 30417 --- .../net/ethernet/atheros/ag71xx/ag71xx_main.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 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 a69ed27d76a..4687e2091b7 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 @@ -134,6 +134,7 @@ static void ag71xx_ring_tx_clean(struct ag71xx *ag) { struct ag71xx_ring *ring = &ag->tx_ring; struct net_device *dev = ag->dev; + u32 bytes_compl = 0, pkts_compl = 0; while (ring->curr != ring->dirty) { u32 i = ring->dirty % ring->size; @@ -143,17 +144,19 @@ static void ag71xx_ring_tx_clean(struct ag71xx *ag) dev->stats.tx_errors++; } - if (ring->buf[i].skb) + if (ring->buf[i].skb) { + bytes_compl += ring->buf[i].skb->len; + pkts_compl++; dev_kfree_skb_any(ring->buf[i].skb); - + } ring->buf[i].skb = NULL; - ring->dirty++; } /* flush descriptors */ wmb(); + netdev_completed_queue(dev, pkts_compl, bytes_compl); } static void ag71xx_ring_tx_init(struct ag71xx *ag) @@ -174,6 +177,7 @@ static void ag71xx_ring_tx_init(struct ag71xx *ag) ring->curr = 0; ring->dirty = 0; + netdev_reset_queue(ag->dev); } static void ag71xx_ring_rx_clean(struct ag71xx *ag) @@ -326,6 +330,7 @@ static void ag71xx_rings_cleanup(struct ag71xx *ag) ag71xx_ring_free(&ag->rx_ring); ag71xx_ring_tx_clean(ag); + netdev_reset_queue(ag->dev); ag71xx_ring_free(&ag->tx_ring); } @@ -691,6 +696,7 @@ static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb, dma_addr = dma_map_single(&dev->dev, skb->data, skb->len, DMA_TO_DEVICE); + netdev_sent_queue(dev, skb->len); ring->buf[i].skb = skb; ring->buf[i].timestamp = jiffies; @@ -822,11 +828,11 @@ static int ag71xx_tx_packets(struct ag71xx *ag) { struct ag71xx_ring *ring = &ag->tx_ring; struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - int sent; + int sent = 0; + int bytes_compl = 0; DBG("%s: processing TX ring\n", ag->dev->name); - sent = 0; while (ring->dirty != ring->curr) { unsigned int i = ring->dirty % ring->size; struct ag71xx_desc *desc = ring->buf[i].desc; @@ -841,6 +847,7 @@ static int ag71xx_tx_packets(struct ag71xx *ag) ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); + bytes_compl += skb->len; ag->dev->stats.tx_bytes += skb->len; ag->dev->stats.tx_packets++; @@ -853,6 +860,7 @@ static int ag71xx_tx_packets(struct ag71xx *ag) DBG("%s: %d packets sent out\n", ag->dev->name, sent); + netdev_completed_queue(ag->dev, sent, bytes_compl); if ((ring->curr - ring->dirty) < (ring->size * 3) / 4) netif_wake_queue(ag->dev); -- 2.30.2