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authorAlexander Duyck <alexander.h.duyck@intel.com>2012-02-07 08:14:33 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2012-03-12 20:14:53 -0700
commitb2d96e0ac07cf4929c6b0eb13121672048368117 (patch)
tree3f7f5c1711b87f24698e9f6355f21d40deee2d54 /drivers/net/ethernet/intel
parent35551c47495a762fcfa5ca6217bf3eb36983d0df (diff)
ixgbe: add support for byte queue limits
This adds support for byte queue limits (BQL). Based on patch from Eric Dumazet for igb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h5
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c7
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 2807a25e04e..f05bfdbf2f3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -643,4 +643,9 @@ extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
struct netdev_fcoe_hbainfo *info);
#endif /* IXGBE_FCOE */
+static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
+{
+ return netdev_get_tx_queue(ring->netdev, ring->queue_index);
+}
+
#endif /* _IXGBE_H_ */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 23a466530a0..060964378e5 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -840,6 +840,9 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
return true;
}
+ netdev_tx_completed_queue(txring_txq(tx_ring),
+ total_packets, total_bytes);
+
#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) &&
(ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) {
@@ -2617,6 +2620,8 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
/* enable queue */
IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl);
+ netdev_tx_reset_queue(txring_txq(ring));
+
/* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */
if (hw->mac.type == ixgbe_mac_82598EB &&
!(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP))
@@ -6808,6 +6813,8 @@ static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
tx_buffer_info->gso_segs = gso_segs;
tx_buffer_info->skb = skb;
+ netdev_tx_sent_queue(txring_txq(tx_ring), tx_buffer_info->bytecount);
+
/* set the timestamp */
first->time_stamp = jiffies;