From: Liang Ma <liangma@liangbit.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Question about enable CBDMA with ioat PMD ?
Date: Wed, 14 Apr 2021 11:37:48 +0100 [thread overview]
Message-ID: <YHbF/ERzZ0mO7oiI@C02F33EJML85> (raw)
In-Reply-To: <20210413182441.GC1185@bricha3-MOBL.ger.corp.intel.com>
On Tue, Apr 13, 2021 at 07:24:41PM +0100, Bruce Richardson wrote:
> On Tue, Apr 13, 2021 at 06:36:38PM +0100, Liang Ma wrote:
> > Hi Bruce,
> > I look into current IOAT PMD. I found that looks only support the
> > latest DSA device which is part of SPR(Please correct me if I'm wrong).
> > However, there still is lots existing CPU that support previous CBDMA
> > Intel Quick-DATA technology. SPDK enable those device with uio.
> > Any hint to enable those CBDMA device with IOAT PMD ?
> >
>
> Hi Liang,
>
> These devices are still supported by the driver. In the latest releases the
> new device support was added but no older device support was removed.
> Please let us know if you do hit any problems with running it on the CBDMA
> HW devices, because it should all still be working as before.
>
> Regards,
> /Bruce
Hi Bruce,
I hit a problem with CBDMA enabling.
1. I follow the DPDK IOAT driver Doc, I bind 0000.04.0 device with
dpdk-devbind.py
2. I run dpdk-test without any parameter then dpdk-test complain with
EAL: VFIO support initialized
EAL: 0000:00:04.0 VFIO group is not viable! Not all devices in IOMMU
group bound to VFIO or unbound
Requested device 0000:00:04.0 cannot be used
3. kernel boot parameter include the "intel_iommu=on"
If I still need some extra iommu settings for CBDMA device ?
Regards
Liang
next prev parent reply other threads:[~2021-04-14 10:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-13 17:36 Liang Ma
2021-04-13 18:24 ` Bruce Richardson
2021-04-14 10:37 ` Liang Ma [this message]
2021-04-14 10:48 ` Bruce Richardson
2021-04-14 12:52 ` Liang Ma
2021-04-14 13:21 ` Bruce Richardson
2021-04-14 13:45 ` Liang Ma
2021-04-14 13:49 ` Bruce Richardson
2021-04-14 15:33 ` Burakov, Anatoly
2021-04-18 15:00 ` Liang Ma
2021-04-14 15:31 ` Burakov, Anatoly
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YHbF/ERzZ0mO7oiI@C02F33EJML85 \
--to=liangma@liangbit.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).