From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Or Gerlitz <gerlitz.or@gmail.com>
Cc: Eli Cohen <eli@mellanox.com>, Huy Nguyen <huyn@mellanox.com>,
Doug Ledford <dledford@redhat.com>,
Eugenia Emantayev <eugenia@mellanox.com>,
Hal Rosenstock <hal.rosenstock@gmail.com>,
Sean Hefty <sean.hefty@intel.com>,
Yishai Hadas <yishaih@mellanox.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
Linux Netdev List <netdev@vger.kernel.org>,
Paul Mackerras <paulus@samba.org>,
Carol L Soto <clsoto@us.ibm.com>,
Yevgeny Petrilin <yevgenyp@mellanox.com>,
Brian J King <bjking1@us.ibm.com>
Subject: Re: [RFC PATCH kernel] Revert "net/mlx4_core: Set UAR page size to 4KB regardless of system page size"
Date: Thu, 17 Mar 2016 12:40:34 +1100 [thread overview]
Message-ID: <56EA0B12.3070901@ozlabs.ru> (raw)
In-Reply-To: <CAJ3xEMgorN4r-Ls66rc3VwUBi=uhb==ih2=43ujrbPC=ts8E5g@mail.gmail.com>
On 03/16/2016 08:45 PM, Or Gerlitz wrote:
> On Wed, Mar 16, 2016 at 10:34 AM, Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
>
>> Oh. ok. It also looks like even with the reverted patch, mlx4 VF does not
>> work in a guest:
>
> So where is the breakage point for you? does 4.4 works? if not, what?
Ah, my bad. It is unrelated to the kernel version.
I tried passing a PF to a guest while its VFs are already passed to another
guest and see how exactly it blows up (AER/EEH were thrown but the host
recovered => good) but this left the device in a weird state when I could
not use VF in a guest anymore but it seemed to keep working on the host.
It seems like the actual adapter does not reset completely when the machine
is rebooted, I had unplug/replug power cables to fix this.
--
Alexey
next prev parent reply other threads:[~2016-03-17 1:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-15 10:19 [RFC PATCH kernel] Revert "net/mlx4_core: Set UAR page size to 4KB regardless of system page size" Alexey Kardashevskiy
2016-03-15 10:40 ` Or Gerlitz
2016-03-15 12:18 ` Christoph Hellwig
2016-03-15 14:23 ` Or Gerlitz
2016-03-15 15:29 ` Christoph Hellwig
2016-03-16 1:52 ` Alexey Kardashevskiy
2016-03-16 2:07 ` Alexey Kardashevskiy
2016-03-16 5:10 ` Eli Cohen
2016-03-16 5:49 ` Alexey Kardashevskiy
2016-03-16 6:09 ` Eli Cohen
2016-03-16 8:34 ` Alexey Kardashevskiy
2016-03-16 9:45 ` Or Gerlitz
2016-03-17 1:40 ` Alexey Kardashevskiy [this message]
2016-03-17 5:05 ` Or Gerlitz
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