bnx2x: Support for byte queue limits
Changes to bnx2x to use byte queue limits.
Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 8336c78..42ce566 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -102,7 +102,8 @@
* return idx of last bd freed
*/
static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
- u16 idx)
+ u16 idx, unsigned int *pkts_compl,
+ unsigned int *bytes_compl)
{
struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx];
struct eth_tx_start_bd *tx_start_bd;
@@ -159,6 +160,10 @@
/* release skb */
WARN_ON(!skb);
+ if (skb) {
+ (*pkts_compl)++;
+ (*bytes_compl) += skb->len;
+ }
dev_kfree_skb_any(skb);
tx_buf->first_bd = 0;
tx_buf->skb = NULL;
@@ -170,6 +175,7 @@
{
struct netdev_queue *txq;
u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons;
+ unsigned int pkts_compl = 0, bytes_compl = 0;
#ifdef BNX2X_STOP_ON_ERROR
if (unlikely(bp->panic))
@@ -189,10 +195,14 @@
" pkt_cons %u\n",
txdata->txq_index, hw_cons, sw_cons, pkt_cons);
- bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons);
+ bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons,
+ &pkts_compl, &bytes_compl);
+
sw_cons++;
}
+ netdev_tx_completed_queue(txq, pkts_compl, bytes_compl);
+
txdata->tx_pkt_cons = sw_cons;
txdata->tx_bd_cons = bd_cons;
@@ -1077,14 +1087,18 @@
struct bnx2x_fastpath *fp = &bp->fp[i];
for_each_cos_in_tx_queue(fp, cos) {
struct bnx2x_fp_txdata *txdata = &fp->txdata[cos];
+ unsigned pkts_compl = 0, bytes_compl = 0;
u16 sw_prod = txdata->tx_pkt_prod;
u16 sw_cons = txdata->tx_pkt_cons;
while (sw_cons != sw_prod) {
- bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons));
+ bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons),
+ &pkts_compl, &bytes_compl);
sw_cons++;
}
+ netdev_tx_reset_queue(
+ netdev_get_tx_queue(bp->dev, txdata->txq_index));
}
}
}
@@ -2788,6 +2802,7 @@
mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0,
skb_frag_size(frag), DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) {
+ unsigned int pkts_compl = 0, bytes_compl = 0;
DP(NETIF_MSG_TX_QUEUED, "Unable to map page - "
"dropping packet...\n");
@@ -2799,7 +2814,8 @@
*/
first_bd->nbd = cpu_to_le16(nbd);
bnx2x_free_tx_pkt(bp, txdata,
- TX_BD(txdata->tx_pkt_prod));
+ TX_BD(txdata->tx_pkt_prod),
+ &pkts_compl, &bytes_compl);
return NETDEV_TX_OK;
}
@@ -2860,6 +2876,8 @@
pbd_e2->parsing_data);
DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod);
+ netdev_tx_sent_queue(txq, skb->len);
+
txdata->tx_pkt_prod++;
/*
* Make sure that the BD data is updated before updating the producer