From bdbc063129e811264cd6c311d8c2d9b95de01231 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 4 Jan 2012 20:23:36 +0000 Subject: [PATCH] igb: Add support for byte queue limits. This adds support for byte queue limits (BQL) Since this driver collects bytes count in 'bytecount' field, use it also in igb_tx_map() Signed-off-by: Eric Dumazet CC: Alexander Duyck Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igb/igb.h | 5 +++++ drivers/net/ethernet/intel/igb/igb_main.c | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index c69feeb..3d12e67 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -447,4 +447,9 @@ static inline s32 igb_get_phy_info(struct e1000_hw *hw) return 0; } +static inline struct netdev_queue *txring_txq(const struct igb_ring *tx_ring) +{ + return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index); +} + #endif /* _IGB_H_ */ diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 89d576ce..dcc68cc 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3201,6 +3201,7 @@ static void igb_clean_tx_ring(struct igb_ring *tx_ring) buffer_info = &tx_ring->tx_buffer_info[i]; igb_unmap_and_free_tx_resource(tx_ring, buffer_info); } + netdev_tx_reset_queue(txring_txq(tx_ring)); size = sizeof(struct igb_tx_buffer) * tx_ring->count; memset(tx_ring->tx_buffer_info, 0, size); @@ -4238,6 +4239,8 @@ static void igb_tx_map(struct igb_ring *tx_ring, frag++; } + netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); + /* write last descriptor with RS and EOP bits */ cmd_type |= cpu_to_le32(size) | cpu_to_le32(IGB_TXD_DCMD); tx_desc->read.cmd_type_len = cmd_type; @@ -5777,6 +5780,8 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) } } + netdev_tx_completed_queue(txring_txq(tx_ring), + total_packets, total_bytes); i += tx_ring->count; tx_ring->next_to_clean = i; u64_stats_update_begin(&tx_ring->tx_syncp); -- 2.7.4