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[PATCH] sky2: dual port tx completion 

Sometimes on dual port cards, one tx complete may cover both
ports. To handle that rearrange poll routine to lookup at
end.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
shemminger@osdl.org 2005-11-30 11:45:19 -08:00 committed by Jeff Garzik
parent 018d1c667e
commit 2224795d7e
1 changed files with 16 additions and 10 deletions
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26
drivers/net/sky2.c
View File

@ -1242,6 +1242,9 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
struct net_device *dev = sky2->netdev;
unsigned i;
if (done == sky2->tx_cons)
return;
if (unlikely(netif_msg_tx_done(sky2)))
printk(KERN_DEBUG "%s: tx done, up to %u\n",
dev->name, done);
@ -1711,16 +1714,18 @@ error:
goto resubmit;
}
/* Transmit ring index in reported status block is encoded as:
*
* | TXS2 | TXA2 | TXS1 | TXA1
/*
* Check for transmit complete
*/
static inline u16 tx_index(u8 port, u32 status, u16 len)
static inline void sky2_tx_check(struct sky2_hw *hw, int port)
{
if (port == 0)
return status & 0xfff;
else
return ((status >> 24) & 0xff) | (len & 0xf) << 8;
struct net_device *dev = hw->dev[port];
if (dev && netif_running(dev)) {
sky2_tx_complete(netdev_priv(dev),
sky2_read16(hw, port == 0
? STAT_TXA1_RIDX : STAT_TXA2_RIDX));
}
}
/*
@ -1803,8 +1808,7 @@ static int sky2_poll(struct net_device *dev0, int *budget)
break;
case OP_TXINDEXLE:
sky2_tx_complete(sky2,
tx_index(sky2->port, status, length));
/* pick up transmit status later */
break;
default:
@ -1816,6 +1820,8 @@ static int sky2_poll(struct net_device *dev0, int *budget)
}
exit_loop:
sky2_tx_check(hw, 0);
sky2_tx_check(hw, 1);
mmiowb();