From: David Marchand <david.marchand@redhat.com>
To: Dharmik Jayesh Thakkar <DharmikJayesh.Thakkar@arm.com>,
Patrick Robb <probb@iol.unh.edu>
Cc: "Ruifeng Wang" <Ruifeng.Wang@arm.com>,
"Juraj Linkeš" <juraj.linkes@pantheon.tech>,
"Honnappa Nagarahalli" <Honnappa.Nagarahalli@arm.com>,
"ci@dpdk.org" <ci@dpdk.org>, nd <nd@arm.com>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"Maxime Coquelin" <maxime.coquelin@redhat.com>
Subject: Re: Intel QAT 8970 accel card on ARM Ampere Server
Date: Tue, 10 Oct 2023 17:12:13 +0200 [thread overview]
Message-ID: <CAJFAV8xkzgmq4WnHmVUytVQex_V49Tyj4bc7=av4asqMjHsSqQ@mail.gmail.com> (raw)
In-Reply-To: <AS4PR08MB755341A61645AADDCBA037D4F7CDA@AS4PR08MB7553.eurprd08.prod.outlook.com>
On Tue, Oct 10, 2023 at 5:03 PM Dharmik Jayesh Thakkar
<DharmikJayesh.Thakkar@arm.com> wrote:
> > > On kernel vers. 5.9+ we need to load the vfio-pci driver with the
> > > additional parameter disable_denylist=1
> >
> > o_O
> > I did not know this option, but it scares me a bit, reading its description.
> > Could you please elaborate why this is needed?
> >
> >
>
> Details for adding QAT to denylist provided in the below commit:
> https://github.com/torvalds/linux/commit/50173329c8cc0c892eaa7a9d0f0692ac39cd7b04
Dharmik,
Ok, thanks.
That matches what I found in the qat documentation:
http://doc.dpdk.org/guides/cryptodevs/qat.html#binding-the-available-vfs-to-the-vfio-pci-driver
Patrick,
Sorry for jumping in this thread, but to be clear, this
disable_denylist option is really specific to this model of
quickassist crypto card.
It must not be enabled in other setups using vfio.
--
David Marchand
next prev parent reply other threads:[~2023-10-10 15:12 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-31 17:13 Patrick Robb
2023-08-04 9:48 ` Ruifeng Wang
2023-08-08 7:07 ` Juraj Linkeš
2023-08-08 7:11 ` Ruifeng Wang
2023-08-11 21:18 ` Patrick Robb
2023-08-21 8:45 ` Juraj Linkeš
2023-08-30 0:05 ` Patrick Robb
2023-09-01 21:30 ` Patrick Robb
2023-09-11 8:13 ` Juraj Linkeš
2023-09-20 18:28 ` Patrick Robb
2023-09-25 15:19 ` Ruifeng Wang
2023-10-09 16:34 ` Patrick Robb
2023-10-10 2:28 ` Patrick Robb
2023-10-10 3:55 ` Dharmik Jayesh Thakkar
2023-10-10 7:25 ` David Marchand
2023-10-10 15:03 ` Dharmik Jayesh Thakkar
2023-10-10 15:12 ` David Marchand [this message]
2023-10-10 15:59 ` Patrick Robb
2023-10-10 21:50 ` Dharmik Jayesh Thakkar
2023-10-11 8:14 ` Juraj Linkeš
2023-10-11 20:13 ` Patrick Robb
2023-11-02 22:00 ` Patrick Robb
2023-11-14 7:34 ` Ruifeng Wang
2023-11-14 14:36 ` Patrick Robb
2024-02-27 6:58 ` Patrick Robb
2024-02-27 13:50 ` Honnappa Nagarahalli
2024-02-28 20:00 ` Patrick Robb
2024-02-28 20:40 ` Honnappa Nagarahalli
2024-03-07 5:27 ` Patrick Robb
2024-03-07 7:56 ` David Marchand
2023-10-11 11:51 ` David Marchand
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