From ec2a5466b3ce680c92e8e05617b020fd825854b9 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 29 Nov 2011 15:15:33 +0000 Subject: [PATCH] sky2: add bql support This adds support for byte queue limits and aggregates statistics update (suggestion from Eric). Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/sky2.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index 29adc7850ee4..760c2b17dfd3 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -1110,6 +1110,7 @@ static void tx_init(struct sky2_port *sky2) sky2->tx_prod = sky2->tx_cons = 0; sky2->tx_tcpsum = 0; sky2->tx_last_mss = 0; + netdev_reset_queue(sky2->netdev); le = get_tx_le(sky2, &sky2->tx_prod); le->addr = 0; @@ -1971,6 +1972,7 @@ static netdev_tx_t sky2_xmit_frame(struct sk_buff *skb, if (tx_avail(sky2) <= MAX_SKB_TX_LE) netif_stop_queue(dev); + netdev_sent_queue(dev, skb->len); sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod); return NETDEV_TX_OK; @@ -2002,7 +2004,8 @@ mapping_error: static void sky2_tx_complete(struct sky2_port *sky2, u16 done) { struct net_device *dev = sky2->netdev; - unsigned idx; + u16 idx; + unsigned int bytes_compl = 0, pkts_compl = 0; BUG_ON(done >= sky2->tx_ring_size); @@ -2017,10 +2020,8 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done) netif_printk(sky2, tx_done, KERN_DEBUG, dev, "tx done %u\n", idx); - u64_stats_update_begin(&sky2->tx_stats.syncp); - ++sky2->tx_stats.packets; - sky2->tx_stats.bytes += skb->len; - u64_stats_update_end(&sky2->tx_stats.syncp); + pkts_compl++; + bytes_compl += skb->len; re->skb = NULL; dev_kfree_skb_any(skb); @@ -2031,6 +2032,13 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done) sky2->tx_cons = idx; smp_mb(); + + netdev_completed_queue(dev, pkts_compl, bytes_compl); + + u64_stats_update_begin(&sky2->tx_stats.syncp); + sky2->tx_stats.packets += pkts_compl; + sky2->tx_stats.bytes += bytes_compl; + u64_stats_update_end(&sky2->tx_stats.syncp); } static void sky2_tx_reset(struct sky2_hw *hw, unsigned port) -- 2.30.2