[net-next 4/8] igb: Add support for byte queue limits.
From: Jeff Kirsher <hidden>
Date: 2012-01-05 06:23:46
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eric Dumazet <redacted> 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 <redacted> CC: Alexander Duyck <redacted> Tested-by: Aaron Brown <redacted> Signed-off-by: Jeff Kirsher <redacted> --- drivers/net/ethernet/intel/igb/igb.h | 5 +++++ drivers/net/ethernet/intel/igb/igb_main.c | 5 +++++ 2 files changed, 10 insertions(+), 0 deletions(-)
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 89d576c..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);
--
1.7.7.5