From 3f0cfa3bc11e7f00c9994e0f469cbc0e7da7b00c Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 28 Nov 2011 16:33:16 +0000 Subject: e1000e: Support for byte queue limits Changes to e1000e to use byte queue limits. Signed-off-by: Tom Herbert Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/e1000e/netdev.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index a5bd7a3dafc9..c6e976302f97 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -1079,6 +1079,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) unsigned int i, eop; unsigned int count = 0; unsigned int total_tx_bytes = 0, total_tx_packets = 0; + unsigned int bytes_compl = 0, pkts_compl = 0; i = tx_ring->next_to_clean; eop = tx_ring->buffer_info[i].next_to_watch; @@ -1096,6 +1097,10 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) if (cleaned) { total_tx_packets += buffer_info->segs; total_tx_bytes += buffer_info->bytecount; + if (buffer_info->skb) { + bytes_compl += buffer_info->skb->len; + pkts_compl++; + } } e1000_put_txbuf(adapter, buffer_info); @@ -1114,6 +1119,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) tx_ring->next_to_clean = i; + netdev_completed_queue(netdev, pkts_compl, bytes_compl); + #define TX_WAKE_THRESHOLD 32 if (count && netif_carrier_ok(netdev) && e1000_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD) { @@ -2240,6 +2247,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter) e1000_put_txbuf(adapter, buffer_info); } + netdev_reset_queue(adapter->netdev); size = sizeof(struct e1000_buffer) * tx_ring->count; memset(tx_ring->buffer_info, 0, size); @@ -5027,6 +5035,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, /* if count is 0 then mapping error has occurred */ count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss); if (count) { + netdev_sent_queue(netdev, skb->len); e1000_tx_queue(adapter, tx_flags, count); /* Make sure there is space in the ring for the next send. */ e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2); -- cgit v1.2.3