orking at all (especially if used with
> > 'swiotlb=force iommu=soft').
> >
> > As Prashant Sreedharan explains it: "the driver [tg3] uses
> > DEFINE_DMA_UNMAP_ADDR(), dma_unmap_addr_set() to keep a copy of the dma
> > "mapping" and dma_unm
On Thu, 2015-04-16 at 18:15 +0100, Ian Jackson wrote:
> Michael Chan writes ("Re: tg3 NIC driver bug in 3.14.x under Xen [and 3 more
> messages]"):
> > On Thu, 2015-04-16 at 09:24 -0300, casca...@linux.vnet.ibm.com wrote:
> > > Yes, this looks like the driver is not syncing the DMA buffers. Unmap
On 4/15/2015 3:54 AM, Ian Jackson wrote:
Prashant writes ("Re: tg3 NIC driver bug in 3.14.x under Xen [and 3 more
messages]"):
I tried to reproduce the problem on 32 bit 3.14.34 stable kernel
baremetal, with iommu=soft swiotlb=force but no luck, no drops or
errors. I did not try w
On 4/10/2015 8:06 AM, Ian Jackson wrote:
(I switched to a different test box "elbling1" with the same symptoms:
~25% packet loss in ping under 64-bit Xen with 32-bit x86 Linux; 100%
loss Linux x86 32-bit baremetal with `iommu=soft swiotlb=force'. In
each case I had disabled the bridge setup so w
rop counter is updated at few places in the
driver. Please use the attached debug patch and provide the logs
>From 777363eb77bddd52b9983c0025fed8b4ec151417 Mon Sep 17 00:00:00 2001
From: Prashant Sreedharan
Date: Thu, 9 Apr 2015 10:52:17 -0700
Subject: [stable: 3.14.37]tg3: debug_patch
---
On Thu, 2015-04-09 at 12:11 +0100, Ian Jackson wrote:
> Prashant Sreedharan writes ("Re: tg3 NIC driver bug in 3.14.x under Xen [and
> 3 more messages]"):
> > On Wed, 2015-04-08 at 14:59 +0100, Ian Jackson wrote:
> > > Ian Jackson writes ("Re: tg3 NIC driver bu
On Wed, 2015-04-08 at 14:59 +0100, Ian Jackson wrote:
> Thanks to Konrad, Michael and Prashant for your attention.
>
>
> Prashant Sreedharan writes ("Re: tg3 NIC driver bug in 3.14.x under Xen"):
> > Ian, in your previous mail you indicated there are no drops or
On Tue, 2015-04-07 at 16:21 -0700, Michael Chan wrote:
> On Tue, 2015-04-07 at 19:13 +0100, Ian Jackson wrote:
> > root@bedbug:~# ethtool -S xenbr0 | grep -v ': 0$'
> > no stats available
> > root@bedbug:~#
>
> Please provide ethtool -S on the tg3 device.
Ian, in your previous mail you indicated
