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| author | Ron Angeles <ronangeles@gmail.com> | 2015-08-11 23:01:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-12 16:27:40 -0700 |
| commit | 47b344b27a003fcdaccbdc07b3d558a7ccdfec04 (patch) | |
| tree | 8a1f5c273cccf8deb802d8fd5bd212d17cc92dbf /drivers/net/ethernet/atheros/atl1c | |
| parent | b5960e6e2b5c52520cec5888c3feb71b71ba1980 (diff) | |
| download | lwn-47b344b27a003fcdaccbdc07b3d558a7ccdfec04.tar.gz lwn-47b344b27a003fcdaccbdc07b3d558a7ccdfec04.zip | |
net: atl1c: add BQL support
This BQL implementation is mostly derived from its related driver, alx.
Tested on AR8131 (rev c0) [1969:1063]. Saturated a 100mbps link with 5
concurrent runs of netperf. Ping latency dropped from 14ms to 3ms.
Signed-off-by: Ron Angeles <ronangeles@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/atheros/atl1c')
| -rw-r--r-- | drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 932bd1862f7a..2795d6db10e1 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -874,6 +874,8 @@ static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter, atl1c_clean_buffer(pdev, buffer_info); } + netdev_reset_queue(adapter->netdev); + /* Zero out Tx-buffers */ memset(tpd_ring->desc, 0, sizeof(struct atl1c_tpd_desc) * ring_count); @@ -1551,6 +1553,7 @@ static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter, u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean); u16 hw_next_to_clean; u16 reg; + unsigned int total_bytes = 0, total_packets = 0; reg = type == atl1c_trans_high ? REG_TPD_PRI1_CIDX : REG_TPD_PRI0_CIDX; @@ -1558,12 +1561,18 @@ static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter, while (next_to_clean != hw_next_to_clean) { buffer_info = &tpd_ring->buffer_info[next_to_clean]; + if (buffer_info->skb) { + total_bytes += buffer_info->skb->len; + total_packets++; + } atl1c_clean_buffer(pdev, buffer_info); if (++next_to_clean == tpd_ring->count) next_to_clean = 0; atomic_set(&tpd_ring->next_to_clean, next_to_clean); } + netdev_completed_queue(adapter->netdev, total_packets, total_bytes); + if (netif_queue_stopped(adapter->netdev) && netif_carrier_ok(adapter->netdev)) { netif_wake_queue(adapter->netdev); @@ -2256,6 +2265,7 @@ static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb, spin_unlock_irqrestore(&adapter->tx_lock, flags); dev_kfree_skb_any(skb); } else { + netdev_sent_queue(adapter->netdev, skb->len); atl1c_tx_queue(adapter, skb, tpd, type); spin_unlock_irqrestore(&adapter->tx_lock, flags); } |