b44: add support for Byte Queue Limits
This makes it possible to use some more advanced queuing
techniques with this driver.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 9b017d9..c96930f 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -596,6 +596,7 @@
static void b44_tx(struct b44 *bp)
{
u32 cur, cons;
+ unsigned bytes_compl = 0, pkts_compl = 0;
cur = br32(bp, B44_DMATX_STAT) & DMATX_STAT_CDMASK;
cur /= sizeof(struct dma_desc);
@@ -612,9 +613,14 @@
skb->len,
DMA_TO_DEVICE);
rp->skb = NULL;
+
+ bytes_compl += skb->len;
+ pkts_compl++;
+
dev_kfree_skb_irq(skb);
}
+ netdev_completed_queue(bp->dev, pkts_compl, bytes_compl);
bp->tx_cons = cons;
if (netif_queue_stopped(bp->dev) &&
TX_BUFFS_AVAIL(bp) > B44_TX_WAKEUP_THRESH)
@@ -1018,6 +1024,8 @@
if (bp->flags & B44_FLAG_REORDER_BUG)
br32(bp, B44_DMATX_PTR);
+ netdev_sent_queue(dev, skb->len);
+
if (TX_BUFFS_AVAIL(bp) < 1)
netif_stop_queue(dev);
@@ -1416,6 +1424,8 @@
val = br32(bp, B44_ENET_CTRL);
bw32(bp, B44_ENET_CTRL, (val | ENET_CTRL_ENABLE));
+
+ netdev_reset_queue(bp->dev);
}
static int b44_open(struct net_device *dev)