* Re: [PATCH] iphase fix.
[not found] <200305150417.h4F4HTRA025809@hera.kernel.org>
@ 2003-05-15 6:37 ` Jeff Garzik
2003-05-15 6:43 ` Jeff Garzik
0 siblings, 1 reply; 3+ messages in thread
From: Jeff Garzik @ 2003-05-15 6:37 UTC (permalink / raw)
To: davej; +Cc: Linux Kernel Mailing List, netdev
Linux Kernel Mailing List wrote:
> ChangeSet 1.1127, 2003/05/14 20:44:02-07:00, davej@codemonkey.org.uk
>
> [PATCH] iphase fix.
>
> This went into 2.4 nearly a year back with the wonderfully
> descriptive "Fix from maintainer" comment.
> diff -Nru a/drivers/net/fc/iph5526.c b/drivers/net/fc/iph5526.c
> --- a/drivers/net/fc/iph5526.c Wed May 14 21:17:37 2003
> +++ b/drivers/net/fc/iph5526.c Wed May 14 21:17:37 2003
> @@ -2984,8 +2984,7 @@
> */
> if ((type == ETH_P_ARP) || (status == 0))
> dev_kfree_skb(skb);
> - else
> - netif_wake_queue(dev);
> + netif_wake_queue(dev);
> LEAVE("iph5526_send_packet");
This appears to revert a fix.
You only want to wake the queue if you have room to queue another skb.
Jeff
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iphase fix.
2003-05-15 6:37 ` [PATCH] iphase fix Jeff Garzik
@ 2003-05-15 6:43 ` Jeff Garzik
2003-05-15 11:32 ` Dave Jones
0 siblings, 1 reply; 3+ messages in thread
From: Jeff Garzik @ 2003-05-15 6:43 UTC (permalink / raw)
To: davej; +Cc: Linux Kernel Mailing List, netdev
Jeff Garzik wrote:
>> dev_kfree_skb(skb);
>> - else
>> - netif_wake_queue(dev);
>> + netif_wake_queue(dev);
>> LEAVE("iph5526_send_packet");
>
>
>
> This appears to revert a fix.
>
> You only want to wake the queue if you have room to queue another skb.
Actually, I'm wrong.
But it could still use some looking-at. You don't want to stop_queue at
the beginning of send_packet and wake_queue at the end. Instead, the
queue should be awakened in the Tx completion routine, and the
stop_queue should be moved from the beginning to the end of the function.
Jeff
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iphase fix.
2003-05-15 6:43 ` Jeff Garzik
@ 2003-05-15 11:32 ` Dave Jones
0 siblings, 0 replies; 3+ messages in thread
From: Dave Jones @ 2003-05-15 11:32 UTC (permalink / raw)
To: Jeff Garzik; +Cc: Linux Kernel Mailing List, netdev
On Thu, May 15, 2003 at 02:43:10AM -0400, Jeff Garzik wrote:
> Jeff Garzik wrote:
> >> dev_kfree_skb(skb);
> >>- else
> >>- netif_wake_queue(dev);
> >>+ netif_wake_queue(dev);
> >> LEAVE("iph5526_send_packet");
> >
> >This appears to revert a fix.
> >You only want to wake the queue if you have room to queue another skb.
>
> Actually, I'm wrong.
>
> But it could still use some looking-at. You don't want to stop_queue at
> the beginning of send_packet and wake_queue at the end. Instead, the
> queue should be awakened in the Tx completion routine, and the
> stop_queue should be moved from the beginning to the end of the function.
Bring it up with whoever merged it into 2.4..
Dave
^ permalink raw reply [flat|nested] 3+ messages in thread
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2003-05-15 6:37 ` [PATCH] iphase fix Jeff Garzik
2003-05-15 6:43 ` Jeff Garzik
2003-05-15 11:32 ` Dave Jones
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