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author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-05-10 12:01:31 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2010-05-10 12:01:31 (GMT) |
commit | 1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch) | |
tree | d1955a7639e99832590df26466a34d5786a880ae /drivers/net/arm | |
parent | 2b0b05ddc04b6d45e71cd36405df512075786f1e (diff) | |
download | linux-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.tar.xz |
net: trans_start cleanups
Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.
Exceptions are NETIF_F_LLTX drivers
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/arm')
-rw-r--r-- | drivers/net/arm/am79c961a.c | 1 | ||||
-rw-r--r-- | drivers/net/arm/at91_ether.c | 1 | ||||
-rw-r--r-- | drivers/net/arm/ep93xx_eth.c | 2 | ||||
-rw-r--r-- | drivers/net/arm/ether1.c | 1 | ||||
-rw-r--r-- | drivers/net/arm/ether3.c | 1 | ||||
-rw-r--r-- | drivers/net/arm/ixp4xx_eth.c | 1 | ||||
-rw-r--r-- | drivers/net/arm/ks8695net.c | 2 | ||||
-rw-r--r-- | drivers/net/arm/w90p910_ether.c | 6 |
8 files changed, 2 insertions, 13 deletions
diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c index a4b5b08..8c496fb 100644 --- a/drivers/net/arm/am79c961a.c +++ b/drivers/net/arm/am79c961a.c @@ -469,7 +469,6 @@ am79c961_sendpacket(struct sk_buff *skb, struct net_device *dev) spin_lock_irqsave(&priv->chip_lock, flags); write_rreg (dev->base_addr, CSR0, CSR0_TDMD|CSR0_IENA); - dev->trans_start = jiffies; spin_unlock_irqrestore(&priv->chip_lock, flags); /* diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c index 0adab30..e07b314 100644 --- a/drivers/net/arm/at91_ether.c +++ b/drivers/net/arm/at91_ether.c @@ -824,7 +824,6 @@ static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Set length of the packet in the Transmit Control register */ at91_emac_write(AT91_EMAC_TCR, skb->len); - dev->trans_start = jiffies; } else { printk(KERN_ERR "at91_ether.c: at91ether_start_xmit() called, but device is busy!\n"); return NETDEV_TX_BUSY; /* if we return anything but zero, dev.c:1055 calls kfree_skb(skb) diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c index 6995169..c5f6736 100644 --- a/drivers/net/arm/ep93xx_eth.c +++ b/drivers/net/arm/ep93xx_eth.c @@ -374,8 +374,6 @@ static int ep93xx_xmit(struct sk_buff *skb, struct net_device *dev) skb->len, DMA_TO_DEVICE); dev_kfree_skb(skb); - dev->trans_start = jiffies; - spin_lock_irq(&ep->tx_pending_lock); ep->tx_pending++; if (ep->tx_pending == TX_QUEUE_ENTRIES) diff --git a/drivers/net/arm/ether1.c b/drivers/net/arm/ether1.c index e47c0d9..b17ab51 100644 --- a/drivers/net/arm/ether1.c +++ b/drivers/net/arm/ether1.c @@ -736,7 +736,6 @@ ether1_sendpacket (struct sk_buff *skb, struct net_device *dev) local_irq_restore(flags); /* handle transmit */ - dev->trans_start = jiffies; /* check to see if we have room for a full sized ether frame */ tmp = priv(dev)->tx_head; diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c index d9de9bc..1361b73 100644 --- a/drivers/net/arm/ether3.c +++ b/drivers/net/arm/ether3.c @@ -529,7 +529,6 @@ ether3_sendpacket(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; /* unable to queue */ } - dev->trans_start = jiffies; ptr = 0x600 * priv(dev)->tx_head; priv(dev)->tx_head = next_ptr; next_ptr *= 0x600; diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c index 7800d7d..24df032 100644 --- a/drivers/net/arm/ixp4xx_eth.c +++ b/drivers/net/arm/ixp4xx_eth.c @@ -708,7 +708,6 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev) /* NPE firmware pads short frames with zeros internally */ wmb(); queue_put_desc(TX_QUEUE(port->id), tx_desc_phys(port, n), desc); - dev->trans_start = jiffies; if (qmgr_stat_below_low_watermark(txreadyq)) { /* empty */ #if DEBUG_TX diff --git a/drivers/net/arm/ks8695net.c b/drivers/net/arm/ks8695net.c index 6404704..54c6d84 100644 --- a/drivers/net/arm/ks8695net.c +++ b/drivers/net/arm/ks8695net.c @@ -1302,8 +1302,6 @@ ks8695_start_xmit(struct sk_buff *skb, struct net_device *ndev) if (++ksp->tx_ring_used == MAX_TX_DESC) netif_stop_queue(ndev); - ndev->trans_start = jiffies; - /* Kick the TX DMA in case it decided to go IDLE */ ks8695_writereg(ksp, KS8695_DTSC, 0); diff --git a/drivers/net/arm/w90p910_ether.c b/drivers/net/arm/w90p910_ether.c index 2491934..2e85246 100644 --- a/drivers/net/arm/w90p910_ether.c +++ b/drivers/net/arm/w90p910_ether.c @@ -483,7 +483,7 @@ static void w90p910_reset_mac(struct net_device *dev) w90p910_init_desc(dev); - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ ether->cur_tx = 0x0; ether->finish_tx = 0x0; ether->cur_rx = 0x0; @@ -497,7 +497,7 @@ static void w90p910_reset_mac(struct net_device *dev) w90p910_trigger_tx(dev); w90p910_trigger_rx(dev); - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ if (netif_queue_stopped(dev)) netif_wake_queue(dev); @@ -634,8 +634,6 @@ static int w90p910_send_frame(struct net_device *dev, txbd = ðer->tdesc->desclist[ether->cur_tx]; - dev->trans_start = jiffies; - if (txbd->mode & TX_OWEN_DMA) netif_stop_queue(dev); |