Re: Intel QAT 8970 accel card on ARM Ampere Server

[Patrick Robb <probb@iol.unh.edu>]

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Hi Ruifeng,

Okay, thanks for the update. I'll build a new kernel just like before, but
with this patch added too. And, I know it shouldn't matter, but I'll avoid
statically building in the qat modules this go around.

Thanks,
Patrick

On Tue, Nov 14, 2023 at 2:35 AM Ruifeng Wang <Ruifeng.Wang@arm.com> wrote:

> Hi Patrick,
>
>
>
> It seems kernel v5.15 has a defect on this. A similar issue was fixed by
> commit:
>
> 40da865381ad ("crypto: qat - remove unneeded packed attribute")
>
>
>
> Could you patch the kernel and try again?
>
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40da865381ad061ab75a7a9da469ed4e623bdfeb
>
>
>
> Thanks,
>
> Ruifeng
>
>
>
> *From: *Patrick Robb <probb@iol.unh.edu>
> *Date: *Friday, November 3, 2023 at 6:01 AM
> *To: *Juraj Linkeš <juraj.linkes@pantheon.tech>
> *Cc: *Dharmik Jayesh Thakkar <DharmikJayesh.Thakkar@arm.com>, David
> Marchand <david.marchand@redhat.com>, Ruifeng Wang <Ruifeng.Wang@arm.com>,
> Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>, ci@dpdk.org <
> ci@dpdk.org>, nd <nd@arm.com>
> *Subject: *Re: Intel QAT 8970 accel card on ARM Ampere Server
>
> On Wed, Oct 11, 2023 at 4:13 PM Patrick Robb <probb@iol.unh.edu> wrote:
>
>
>
> root@arm-ampere-dut:~# echo 16 >
> /sys/bus/pci/drivers/c6xx/0000:03:00.0/sriov_numvfs
> Segmentation fault (core dumped)
>
>
>
> Hi Aaron,
>
>
>
> Thanks for offering to take a look. I'm not sure if you've seen the rest
> of this conversation already from it being on the ci mailing list or not,
> but modinfo looks good for qat_c62x andqat_c62xvf after the custom kernel
> was built. From there, it should be possible to bind some VFs for each PF
> on the QAT card, per documentation here
> https://doc.dpdk.org/guides/cryptodevs/qat.html but it results in a seg
> fault like you see above. Let me know if you have any ideas.
>


-- 

Patrick Robb

Technical Service Manager

UNH InterOperability Laboratory

21 Madbury Rd, Suite 100, Durham, NH 03824

www.iol.unh.edu

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