netdev - Re: VLAN I/F's and TX queue.

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Date:	Mon, 10 May 2010 16:54:40 +0200
From:	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org
Subject: Re: VLAN I/F's and TX queue.

Patrick McHardy <kaber@...sh.net> wrote on 2010/05/10 16:41:40:
>
> Eric Dumazet wrote:
> > Le lundi 10 mai 2010 à 16:26 +0200, Patrick McHardy a écrit :
> >
> >> Is the intention just to avoid accounting the packet as dropped?
> >> That seems fine to me since in case of NET_XMIT_CN its actually
> >> not the currently transmitted packet that was dropped.
> >>
> >> But part of the intention of the above mentioned patch was actually
> >> to inform higher layers of congestion so they can take action if
> >> desired, which would be defeated by this patch.
> >>
> >
> > I see, so maybe we want following patch instead ?
> >
> > (letting NET_XMIT_CN be given to caller, but accounting current packet
> > as transmitted ?)
>
> Perfect, thanks. I'd suggest to change macvlan in a similar fashion
> for consistency though.
>
> In any case please feel free to add my
>
> Acked-by: Patrick McHardy <kaber@...sh.net>

hmm, as I don't follow this could you tell me where the dropped pkgs
are accounted in my case:
 eth0      Link encap:Ethernet  HWaddr 00:AA:BB:CC:DD:EE
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:8886910 errors:0 dropped:0 overruns:0 frame:0
           TX packets:8880219 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:100
           RX bytes:1626842951 (1.5 GiB)  TX bytes:1555540810 (1.4 GiB)

 eth0.1    Link encap:Ethernet  HWaddr 00:AA:BB:CC:DD:EE
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:2163164 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2161943 errors:0 dropped:98 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:2467090557 (2.2 GiB)  TX bytes:2480246455 (2.3 GiB)

 eth0.1.1  Link encap:Ethernet  HWaddr 00:AA:BB:CC:DD:EE
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:2163164 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2161943 errors:0 dropped:98 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:2458437901 (2.2 GiB)  TX bytes:2471598683 (2.3 GiB)

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