mlx4_en: Byte Queue Limit support
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 2d49342..9a38483 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -315,6 +315,8 @@
int size = cq->size;
u32 size_mask = ring->size_mask;
struct mlx4_cqe *buf = cq->buf;
+ u32 packets = 0;
+ u32 bytes = 0;
if (!priv->port_up)
return;
@@ -343,6 +345,8 @@
priv, ring, ring_index,
!!((ring->cons + txbbs_skipped) &
ring->size));
+ packets++;
+ bytes += ring->tx_info[ring_index].nr_bytes;
} while (ring_index != new_index);
++cons_index;
@@ -359,13 +363,14 @@
mlx4_cq_set_ci(mcq);
wmb();
ring->cons += txbbs_skipped;
+ netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
/* Wakeup Tx queue if this ring stopped it */
if (unlikely(ring->blocked)) {
if ((u32) (ring->prod - ring->cons) <=
ring->size - HEADROOM - MAX_DESC_TXBBS) {
ring->blocked = 0;
- netif_tx_wake_queue(netdev_get_tx_queue(dev, cq->ring));
+ netif_tx_wake_queue(ring->tx_queue);
priv->port_stats.wake_queue++;
}
}
@@ -583,7 +588,7 @@
if (unlikely(((int)(ring->prod - ring->cons)) >
ring->size - HEADROOM - MAX_DESC_TXBBS)) {
/* every full Tx ring stops queue */
- netif_tx_stop_queue(netdev_get_tx_queue(dev, tx_ind));
+ netif_tx_stop_queue(ring->tx_queue);
ring->blocked = 1;
priv->port_stats.queue_stopped++;
@@ -649,7 +654,7 @@
priv->port_stats.tso_packets++;
i = ((skb->len - lso_header_size) / skb_shinfo(skb)->gso_size) +
!!((skb->len - lso_header_size) % skb_shinfo(skb)->gso_size);
- ring->bytes += skb->len + (i - 1) * lso_header_size;
+ tx_info->nr_bytes = skb->len + (i - 1) * lso_header_size;
ring->packets += i;
} else {
/* Normal (Non LSO) packet */
@@ -657,10 +662,12 @@
((ring->prod & ring->size) ?
cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
data = &tx_desc->data;
- ring->bytes += max(skb->len, (unsigned int) ETH_ZLEN);
+ tx_info->nr_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
ring->packets++;
}
+ ring->bytes += tx_info->nr_bytes;
+ netdev_tx_sent_queue(ring->tx_queue, tx_info->nr_bytes);
AVG_PERF_COUNTER(priv->pstats.tx_pktsz_avg, skb->len);