* Re: Corrupt Network Packets -- 3.17-rc5/rc6
[not found] <201409221130.s8MBUQls003040@clem.clem-digital.net>
@ 2014-09-22 15:53 ` Cong Wang
2014-09-22 17:24 ` Pete Clements
0 siblings, 1 reply; 5+ messages in thread
From: Cong Wang @ 2014-09-22 15:53 UTC (permalink / raw)
To: Pete Clements; +Cc: linux-kernel, Linux Kernel Network Developers
(Networking bug report needs to go netdev@)
On Mon, Sep 22, 2014 at 4:30 AM, Pete Clements
<clem@clem.clem-digital.net> wrote:
> Heads up fyi: system is i386 UP.
>
> Started getting some pop3 reception errors from the above system.
> Investigating the problem discovered scp of the mailbox failed
> with "Corrupted MAC on input"
>
> Problem started with rc5, still in rc6. Running rc4 with no
> problem.
>
> Sorry for lack of better definition.
Which driver are you using?
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Corrupt Network Packets -- 3.17-rc5/rc6
2014-09-22 15:53 ` Corrupt Network Packets -- 3.17-rc5/rc6 Cong Wang
@ 2014-09-22 17:24 ` Pete Clements
2014-09-22 17:38 ` David Miller
0 siblings, 1 reply; 5+ messages in thread
From: Pete Clements @ 2014-09-22 17:24 UTC (permalink / raw)
To: Cong Wang; +Cc: Pete Clements, linux-kernel, Linux Kernel Network Developers
Quoting Cong Wang
> <clem@clem.clem-digital.net> wrote:
> > Heads up fyi: system is i386 UP.
> >
> > Started getting some pop3 reception errors from the above system.
> > Investigating the problem discovered scp of the mailbox failed
> > with "Corrupted MAC on input"
> >
> > Problem started with rc5, still in rc6. Running rc4 with no
> > problem.
> >
> > Sorry for lack of better definition.
>
>
> Which driver are you using?
>
Here's the output from boot log:
PCI: setting IRQ 11 as level-triggered
3c59x 0000:00:0d.0: found PCI INT A -> IRQ 11
3c59x: Donald Becker and others.
0000:00:0d.0: 3Com PCI 3c900 Cyclone 10Mbps TPC at d8812000.
--
Pete Clements
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Corrupt Network Packets -- 3.17-rc5/rc6
2014-09-22 17:24 ` Pete Clements
@ 2014-09-22 17:38 ` David Miller
2014-09-22 18:30 ` Pete Clements
0 siblings, 1 reply; 5+ messages in thread
From: David Miller @ 2014-09-22 17:38 UTC (permalink / raw)
To: clem; +Cc: xiyou.wangcong, linux-kernel, netdev
From: Pete Clements <clem@clem.clem-digital.net>
Date: Mon, 22 Sep 2014 13:24:59 -0400 (EDT)
> Quoting Cong Wang
> > <clem@clem.clem-digital.net> wrote:
> > > Heads up fyi: system is i386 UP.
> > >
> > > Started getting some pop3 reception errors from the above system.
> > > Investigating the problem discovered scp of the mailbox failed
> > > with "Corrupted MAC on input"
> > >
> > > Problem started with rc5, still in rc6. Running rc4 with no
> > > problem.
> > >
> > > Sorry for lack of better definition.
> >
> >
> > Which driver are you using?
> >
> Here's the output from boot log:
>
> PCI: setting IRQ 11 as level-triggered
> 3c59x 0000:00:0d.0: found PCI INT A -> IRQ 11
> 3c59x: Donald Becker and others.
> 0000:00:0d.0: 3Com PCI 3c900 Cyclone 10Mbps TPC at d8812000.
Should be fixed by:
commit 8400dd029e764e30361a51a7ae35900ae0032b43
Author: Neil Horman <nhorman@tuxdriver.com>
Date: Wed Sep 17 09:04:45 2014 -0400
3c59x: Fix bad offset spec in skb_frag_dma_map
Recently aded the use of skb_frag_dma_map to 3c59x, but didn't realize it
automatically included the frag_offset internally, as well as provided an option
to specify an extra offset in the parameter list. We need to specify an offset
of 0 in the parameter list to avoid skb corruption that results in lost
connections.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Linux Kernel list <linux-kernel@vger.kernel.org>
CC: "David S. Miller" <davem@davemloft.net>
CC: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 8ab87ff..8ca49f04 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2186,7 +2186,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
dma_addr = skb_frag_dma_map(&VORTEX_PCI(vp)->dev, frag,
- frag->page_offset,
+ 0,
frag->size,
DMA_TO_DEVICE);
if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) {
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: Corrupt Network Packets -- 3.17-rc5/rc6
2014-09-22 17:38 ` David Miller
@ 2014-09-22 18:30 ` Pete Clements
2014-09-22 19:07 ` David Miller
0 siblings, 1 reply; 5+ messages in thread
From: Pete Clements @ 2014-09-22 18:30 UTC (permalink / raw)
To: David Miller; +Cc: clem, xiyou.wangcong, linux-kernel, netdev
Thanks. Does not patch. Code looks not to be in the rc6 that Linus
put out. Guess there is more to come. (This is what I believe is
the segment in rc6 -- at line 2179.)
vp->tx_ring[entry].frag[i+1].addr =
cpu_to_le32(skb_frag_dma_map(
&VORTEX_PCI(vp)->dev,
frag,
frag->page_offset, frag->size, DMA_TO_DEVICE));
--
Pete Clements
Quoting David Miller
> From: Pete Clements <clem@clem.clem-digital.net>
> Date: Mon, 22 Sep 2014 13:24:59 -0400 (EDT)
>
> > Quoting Cong Wang
> > > <clem@clem.clem-digital.net> wrote:
> > > > Heads up fyi: system is i386 UP.
> > > >
> > > > Started getting some pop3 reception errors from the above system.
> > > > Investigating the problem discovered scp of the mailbox failed
> > > > with "Corrupted MAC on input"
> > > >
> > > > Problem started with rc5, still in rc6. Running rc4 with no
> > > > problem.
> > > >
> > > > Sorry for lack of better definition.
> > >
> > >
> > > Which driver are you using?
> > >
> > Here's the output from boot log:
> >
> > PCI: setting IRQ 11 as level-triggered
> > 3c59x 0000:00:0d.0: found PCI INT A -> IRQ 11
> > 3c59x: Donald Becker and others.
> > 0000:00:0d.0: 3Com PCI 3c900 Cyclone 10Mbps TPC at d8812000.
>
> Should be fixed by:
>
> commit 8400dd029e764e30361a51a7ae35900ae0032b43
> Author: Neil Horman <nhorman@tuxdriver.com>
> Date: Wed Sep 17 09:04:45 2014 -0400
>
> 3c59x: Fix bad offset spec in skb_frag_dma_map
>
> Recently aded the use of skb_frag_dma_map to 3c59x, but didn't realize it
> automatically included the frag_offset internally, as well as provided an option
> to specify an extra offset in the parameter list. We need to specify an offset
> of 0 in the parameter list to avoid skb corruption that results in lost
> connections.
>
> Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
> CC: Linux Kernel list <linux-kernel@vger.kernel.org>
> CC: "David S. Miller" <davem@davemloft.net>
> CC: Meelis Roos <mroos@linux.ee>
> Tested-by: Meelis Roos <mroos@linux.ee>
>
> diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
> index 8ab87ff..8ca49f04 100644
> --- a/drivers/net/ethernet/3com/3c59x.c
> +++ b/drivers/net/ethernet/3com/3c59x.c
> @@ -2186,7 +2186,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
> skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
>
> dma_addr = skb_frag_dma_map(&VORTEX_PCI(vp)->dev, frag,
> - frag->page_offset,
> + 0,
> frag->size,
> DMA_TO_DEVICE);
> if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) {
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Corrupt Network Packets -- 3.17-rc5/rc6
2014-09-22 18:30 ` Pete Clements
@ 2014-09-22 19:07 ` David Miller
0 siblings, 0 replies; 5+ messages in thread
From: David Miller @ 2014-09-22 19:07 UTC (permalink / raw)
To: clem; +Cc: xiyou.wangcong, linux-kernel, netdev
From: Pete Clements <clem@clem.clem-digital.net>
Date: Mon, 22 Sep 2014 14:30:36 -0400 (EDT)
>
> Thanks. Does not patch. Code looks not to be in the rc6 that Linus
> put out. Guess there is more to come. (This is what I believe is
> the segment in rc6 -- at line 2179.)
>
> vp->tx_ring[entry].frag[i+1].addr =
> cpu_to_le32(skb_frag_dma_map(
> &VORTEX_PCI(vp)->dev,
> frag,
> frag->page_offset, frag->size, DMA_TO_DEVICE));
Just simply change the frag->page_offset argument to zero.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-09-22 19:07 UTC | newest]
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2014-09-22 15:53 ` Corrupt Network Packets -- 3.17-rc5/rc6 Cong Wang
2014-09-22 17:24 ` Pete Clements
2014-09-22 17:38 ` David Miller
2014-09-22 18:30 ` Pete Clements
2014-09-22 19:07 ` David Miller
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