Add byte queue limits support to net/ethernet/ramips_main.c
"Byte queue limits are a mechanism to limit the size of the transmit
hardware queue on a NIC by number of bytes. The goal of these byte
limits is too reduce latency (HOL blocking) caused by excessive
queuing in hardware (aka buffer bloat) without sacrificing
throughput."
Signed-off-by: Tobias Diedrich <ranma+openwrt@tdiedrich.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31844
3c298f89-4303-0410-b956-
a3cf2f4a3e73
+
+ netdev_reset_queue(re->netdev);
}
#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT3883)
}
#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT3883)
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
ramips_fe_wr(tx_next, RAMIPS_TX_CTX_IDX0);
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
ramips_fe_wr(tx_next, RAMIPS_TX_CTX_IDX0);
+ netdev_sent_queue(dev, skb->len);
spin_unlock(&re->page_lock);
return NETDEV_TX_OK;
spin_unlock(&re->page_lock);
return NETDEV_TX_OK;
{
struct net_device *dev = (struct net_device*)ptr;
struct raeth_priv *re = netdev_priv(dev);
{
struct net_device *dev = (struct net_device*)ptr;
struct raeth_priv *re = netdev_priv(dev);
+ unsigned int bytes_compl = 0, pkts_compl = 0;
spin_lock(&re->page_lock);
while (1) {
spin_lock(&re->page_lock);
while (1) {
if (!(txd->txd2 & TX_DMA_DONE) || !(txi->tx_skb))
break;
if (!(txd->txd2 & TX_DMA_DONE) || !(txi->tx_skb))
break;
+ pkts_compl++;
+ bytes_compl += txi->tx_skb->len;
+
dev_kfree_skb_irq(txi->tx_skb);
txi->tx_skb = NULL;
re->skb_free_idx++;
if (re->skb_free_idx >= NUM_TX_DESC)
re->skb_free_idx = 0;
}
dev_kfree_skb_irq(txi->tx_skb);
txi->tx_skb = NULL;
re->skb_free_idx++;
if (re->skb_free_idx >= NUM_TX_DESC)
re->skb_free_idx = 0;
}
+ netdev_completed_queue(dev, pkts_compl, bytes_compl);
spin_unlock(&re->page_lock);
ramips_fe_int_enable(RAMIPS_TX_DLY_INT);
spin_unlock(&re->page_lock);
ramips_fe_int_enable(RAMIPS_TX_DLY_INT);