diff options
| author |   shemminger@osdl.org <shemminger@osdl.org> | 2005-11-30 11:45:19 -0800 |
|---|---|---|
| committer |   Jeff Garzik <jgarzik@pobox.com> | 2005-12-01 02:20:20 -0500 |
| commit | 2224795d7e4c7f7e44fe21f0fa067d62539308fb (patch) | |
| tree | 6414d3d4307daa181b6fc2b19762bd75f2d19ba7 /drivers/net/sky2.c | |
| parent | [PATCH] sky2: race with MTU change (diff) | |
| download | linux-dev-2224795d7e4c7f7e44fe21f0fa067d62539308fb.tar.xz linux-dev-2224795d7e4c7f7e44fe21f0fa067d62539308fb.zip | |
[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>
Diffstat (limited to 'drivers/net/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 1d5c3039f53a..52c7b1886314 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -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(); |