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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: jerinj@marvell.com, dev@dpdk.org, Ray Kinsella <mdr@ashroe.eu>,
	Neil Horman <nhorman@tuxdriver.com>,
	John McNamara <john.mcnamara@intel.com>,
	Marko Kovacevic <marko.kovacevic@intel.com>
Cc: thomas@monjalon.net, david.marchand@redhat.com
Subject: Re: [dpdk-dev] [PATCH v2] doc: announce the removal of legacy virtio support
Date: Mon, 25 May 2020 09:33:14 +0200
Message-ID: <25d32839-a0e9-5d47-1354-a330c5d49831@redhat.com> (raw)
In-Reply-To: <20200525054606.4187060-1-jerinj@marvell.com>

Hi Jerrin,

I think what was agreed wasn't to remove Legacy Virtio support,
but instead remove support for probing legacy Virtio devices when they
are not bound to any Kernel drivers.

It should still be possible to use these legacy Virtio devices when
bound to VFIO or UIO.

Regards,
Maximle

On 5/25/20 7:46 AM, jerinj@marvell.com wrote:
> From: Jerin Jacob <jerinj@marvell.com>
> 
> The legacy virtio feature is not architecture agnostics.
> It relies on x86 IO port scheme support for its working.
> 
> The legacy virtio is only the consumer of RTE_KDRV_NONE in DPDK PCI
> subsystem. Legacy virtio removal will also optimize DPDK PCI enumeration
> management as it does not need to probe RTE_KDRV_NONE based
> devices anymore.
> 
> Legacy virtio feature removal is planned in the v20.11 release.
> 
> More details at http://patches.dpdk.org/patch/69351/
> 
> Cc: maxime.coquelin@redhat.com
> Cc: david.marchand@redhat.com
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
> ---
>  doc/guides/rel_notes/deprecation.rst | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index cf8b1eb7b..79a03432c 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -107,3 +107,11 @@ Deprecation Notices
>    Python 2 support will be completely removed in 20.11.
>    In 20.08, explicit deprecation warnings will be displayed when running
>    scripts with Python 2.
> +
> +* virtio: The legacy virtio feature is not architecture agnostics.
> +  It relies on x86 IO port scheme support for its working.
> +  The legacy virtio is only the consumer of RTE_KDRV_NONE in DPDK PCI subsystem.
> +  Legacy virtio removal will also optimize DPDK PCI enumeration management as
> +  it does not need to probe RTE_KDRV_NONE based devices anymore.
> +  Legacy virtio feature removal is planned in the v20.11 release.
> +  More details at http://patches.dpdk.org/patch/69351/
> 


  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-23 14:07 [dpdk-dev] [PATCH] doc: announce the deprecation " jerinj
2020-05-24 23:44 ` Thomas Monjalon
2020-05-25  5:37   ` Jerin Jacob
2020-05-25  5:46 ` [dpdk-dev] [PATCH v2] doc: announce the removal " jerinj
2020-05-25  7:33   ` Maxime Coquelin [this message]
2020-05-25  7:52     ` Jerin Jacob
2020-05-25  8:15   ` [dpdk-dev] [PATCH v3] doc: announce the removal of RTE_KDRV_NONE based probe jerinj
2020-05-25  8:20     ` Maxime Coquelin
2020-05-26 14:44       ` Olivier Matz
2020-05-26 15:04         ` Thomas Monjalon

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