[RFC PATCH v2 5/9] e1000e: Support for byte queue limits
DORMANTno replies
From: Tom Herbert <hidden>
Date: 2011-08-08 04:49:39
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Changes to e1000e to use byte queue limits. Signed-off-by: Tom Herbert <redacted> --- drivers/net/e1000e/netdev.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 4353ad5..4ce114c 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c@@ -998,6 +998,7 @@ 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;
@@ -1015,6 +1016,11 @@ 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);
@@ -1033,6 +1039,8 @@ 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) {
@@ -2164,6 +2172,7 @@ 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);
@@ -4882,6 +4891,7 @@ 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, 1, 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);
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1.7.3.1