From 7070ce0a6419a118842298bc967061ad6cea40db Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Sat, 28 Sep 2013 06:00:37 +0000 Subject: [PATCH] i40e: Add support for Tx byte queue limits Implement BQL (byte queue limit) support in i40e. Signed-off-by: Alexander Duyck Signed-off-by: Jesse Brandeburg Tested-by: Kavindya Deegala Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 52dfac206f75..ad2818f26821 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -240,6 +240,13 @@ void i40e_clean_tx_ring(struct i40e_ring *tx_ring) tx_ring->next_to_use = 0; tx_ring->next_to_clean = 0; + + if (!tx_ring->netdev) + return; + + /* cleanup Tx queue statistics */ + netdev_tx_reset_queue(netdev_get_tx_queue(tx_ring->netdev, + tx_ring->queue_index)); } /** @@ -436,6 +443,10 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget) return true; } + netdev_tx_completed_queue(netdev_get_tx_queue(tx_ring->netdev, + tx_ring->queue_index), + total_packets, total_bytes); + #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && (I40E_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) { @@ -1602,6 +1613,10 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb, build_ctob(td_cmd, td_offset, size, td_tag) | cpu_to_le64((u64)I40E_TXD_CMD << I40E_TXD_QW1_CMD_SHIFT); + netdev_tx_sent_queue(netdev_get_tx_queue(tx_ring->netdev, + tx_ring->queue_index), + first->bytecount); + /* set the timestamp */ first->time_stamp = jiffies; -- 2.20.1