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From: Bruce Richardson <bruce.richardson@intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: Thomas Monjalon <thomas@monjalon.net>,
	Stephen Hemminger <stephen@networkplumber.org>,
	dev@dpdk.org, david.marchand@redhat.com, ferruh.yigit@intel.com,
	jerinj@marvell.com
Subject: Re: [dpdk-dev] [PATCH v2] kernel: remove igb_uio
Date: Mon, 5 Oct 2020 10:56:37 +0100	[thread overview]
Message-ID: <20201005095637.GA1335@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <e7234791-1638-afab-94d1-3a438d255ad7@redhat.com>

On Mon, Oct 05, 2020 at 11:11:40AM +0200, Maxime Coquelin wrote:
> 
> 
> On 10/5/20 10:57 AM, Thomas Monjalon wrote:
> > 24/09/2020 07:41, Stephen Hemminger:
> >> On Fri, 11 Sep 2020 17:54:48 +0200
> >> Thomas Monjalon <thomas@monjalon.net> wrote:
> >>
> >>> As decided in the Technical Board in November 2019,
> >>> the kernel module igb_uio is moved to the dpdk-kmods repository
> >>> in the /linux/igb_uio/ directory.
> >>>
> >>> Minutes of Technical Board meeting:
> >>> https://mails.dpdk.org/archives/dev/2019-November/151763.html
> >>>
> >>> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> >>> ---
> >>> v2: update few docs (including release notes)
> >>
> >> Good so far:
> >> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
> >>
> >> You may want to address all the references to igb_uio in guides/nics
> >>
> >> ark.rst
> >> axgbe.rst
> >> bnx2x.rst
> >> bnxt.rst
> >> build_and_test.rst
> >> ena.rst
> >> enic.rst
> >> features.rst
> >> hns3.rst
> >> i40e.rst
> >> intel_vf.rst
> >> ixgbe.rst
> >> liquidio.rst
> >> mlx4.rst
> >> mlx5.rst
> >> nfp.rst
> >> qede.rst
> >> virtio.rst
> > 
> > igb_uio is still available.
> > A next step in deprecation might be to remove igb_uio references.
> > 
> >> What about drivers like ark which don't mention vfio?
> > 
> > They should be updated by their maintainer.
> > 
> >> Does virtio still require igb_uio? or x86 I/O port for doorbell?
> >> Or is this just stale language.
> > 
> > Maxime, any update on the use of igb_uio with virtio?
> 
> For sure Virtio don't require igb_uio, I always use vfio myself.
> It seems the doc needs an update, I'll try to look at it later in this
> release.
> 

Another gap I believe we need to close is that we need some instructions in
the GSG for using vfio in noiommu mode, for those running in VMs without an
emulated iommu. The VM case is the big one where using regular VFIO may
cause problems. I do see in the GSG one mention that it's possible to use
VFIO without an IOMMU, but no instructions on how to do so.

/Bruce

  reply	other threads:[~2020-10-05  9:56 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-07 22:50 [dpdk-dev] [PATCH] " Thomas Monjalon
2020-09-08  0:14 ` Thomas Monjalon
2020-09-08  8:25   ` Bruce Richardson
2020-09-08  9:27     ` Thomas Monjalon
2020-09-08  9:34       ` Bruce Richardson
2020-09-08  9:46         ` Thomas Monjalon
2020-09-08 12:06 ` Ferruh Yigit
2020-09-11 12:22   ` Thomas Monjalon
2020-09-11 15:54 ` [dpdk-dev] [PATCH v2] " Thomas Monjalon
2020-09-11 16:22   ` Ferruh Yigit
2020-09-12  8:55     ` Thomas Monjalon
2020-09-14  9:47       ` Ferruh Yigit
2020-09-24  5:41   ` Stephen Hemminger
2020-10-05  8:57     ` Thomas Monjalon
2020-10-05  9:11       ` Maxime Coquelin
2020-10-05  9:56         ` Bruce Richardson [this message]
2020-10-10  7:23         ` 谢华伟(此时此刻)
2020-10-05  9:38 ` [dpdk-dev] [PATCH v3] " Thomas Monjalon
2020-10-05  9:42 ` [dpdk-dev] [PATCH v4] kernel/linux: " Thomas Monjalon
2020-10-05 10:14   ` Andrew Rybchenko
2020-10-05 11:14     ` Jerin Jacob
2020-10-06 10:16   ` Ferruh Yigit
2020-10-06 10:54     ` Thomas Monjalon
2020-10-06 11:09       ` Ferruh Yigit
2020-10-06 12:49         ` Thomas Monjalon
2020-10-06 12:54         ` Thomas Monjalon

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