From: Thomas Monjalon <thomas@monjalon.net>
To: Jerin Jacob <jerinjacobk@gmail.com>
Cc: dev@dpdk.org, Shahaf Shuler <shahafs@mellanox.com>,
Stephen Hemminger <stephen@networkplumber.org>,
Andrew Rybchenko <arybchenko@solarflare.com>,
Ferruh Yigit <ferruh.yigit@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 0/3] ethdev: configure SR-IOV VF from host
Date: Fri, 01 Nov 2019 01:24:43 +0100 [thread overview]
Message-ID: <1727016.NX2bq4Vah3@xps> (raw)
In-Reply-To: <CALBAE1P3TkPtpE7eVaKOwoC5bq_HdkJK+HawRXCiQFz=E0KXMw@mail.gmail.com>
30/10/2019 10:24, Jerin Jacob:
> On Wed, Oct 30, 2019 at 12:52 PM Shahaf Shuler <shahafs@mellanox.com> wrote:
> > Wednesday, October 30, 2019 6:09 AM, Jerin Jacob:
> > > Subject: Re: [dpdk-dev] [PATCH v2 0/3] ethdev: configure SR-IOV VF from
> > > host
> > >
> > > On Wed, Oct 30, 2019 at 12:21 AM Thomas Monjalon
> > > <thomas@monjalon.net> wrote:
> > > >
> > > > In a virtual environment, the network controller may have to configure
> > > > some SR-IOV VF parameters for security reasons.
> > >
> > > Just to understand, Could you explain more details/examples for security
> > > reasons?
> > >
> > > >
> > > > When the PF (host port) is driven by DPDK (OVS-DPDK case), we face two
> > > > different cases:
> > > > - driver is bifurcated (Mellanox case),
> > > > so the VF can be configured via the kernel.
> > > > - driver is on top of UIO or VFIO, so DPDK API is required,
> > >
> > > Not true. Both UIO and VFIO are NOT allowed to create SRIOV VF from the
> > > PF device.
> > > It is only allowed through igb-uio out of tree driver without iommu support.
> >
> > Per my understanding Thomas proposal is not to create the VFs
> > from the PF device. it is to configure their network attributes
> > from the PF after they have been created.
>
> Yes. My question is without creating the VF, How do you control them?
We can create the VF via the kernel PF driver, before binding the PF to VFIO.
next prev parent reply other threads:[~2019-11-01 0:24 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 15:06 [dpdk-dev] [RFC] " Thomas Monjalon
2019-08-15 15:34 ` Jerin Jacob Kollanukkaran
2019-08-15 17:59 ` Thomas Monjalon
2019-08-29 15:02 ` Iremonger, Bernard
2019-09-04 8:23 ` Thomas Monjalon
2019-10-29 18:50 ` [dpdk-dev] [PATCH v2 0/3] " Thomas Monjalon
2019-10-29 18:50 ` [dpdk-dev] [PATCH v2 1/3] ethdev: identify " Thomas Monjalon
2019-10-29 18:50 ` [dpdk-dev] [PATCH v2 2/3] ethdev: set VF MAC address " Thomas Monjalon
2019-11-01 0:18 ` [dpdk-dev] [RFC PATCH] net/i[xgb|40]e: " Thomas Monjalon
2019-10-29 18:50 ` [dpdk-dev] [PATCH v2 3/3] net/mlx5: " Thomas Monjalon
2019-10-30 4:08 ` [dpdk-dev] [PATCH v2 0/3] ethdev: configure SR-IOV VF " Jerin Jacob
2019-10-30 7:22 ` Shahaf Shuler
2019-10-30 9:24 ` Jerin Jacob
2019-11-01 0:24 ` Thomas Monjalon [this message]
2019-11-01 9:06 ` Ilya Maximets
2019-11-01 9:56 ` Ilya Maximets
2019-10-30 8:56 ` Thomas Monjalon
2019-10-30 9:15 ` Jerin Jacob
2019-11-01 0:33 ` Thomas Monjalon
2019-11-01 11:01 ` Jerin Jacob
2019-11-01 13:25 ` Jerin Jacob
2019-11-03 6:31 ` Shahaf Shuler
2019-10-30 15:07 ` Ilya Maximets
2019-10-30 15:49 ` Thomas Monjalon
2019-10-30 16:09 ` Ilya Maximets
2019-10-30 21:42 ` Thomas Monjalon
2019-11-01 9:32 ` Ilya Maximets
2019-11-03 6:48 ` Shahaf Shuler
2019-11-03 15:27 ` Ananyev, Konstantin
2019-11-03 22:09 ` Thomas Monjalon
2019-11-07 14:44 ` Thomas Monjalon
2019-11-04 10:28 ` Ilya Maximets
2019-11-04 14:30 ` Asaf Penso
2019-11-04 14:58 ` Ilya Maximets
2019-11-04 20:33 ` Shahaf Shuler
2019-11-05 12:15 ` Ilya Maximets
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=1727016.NX2bq4Vah3@xps \
--to=thomas@monjalon.net \
--cc=arybchenko@solarflare.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=jerinjacobk@gmail.com \
--cc=shahafs@mellanox.com \
--cc=stephen@networkplumber.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).