From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: Hemant Agrawal <hemant.agrawal@nxp.com>, <dev@dpdk.org>,
<jianbo.liu@linaro.org>, <santosh.shukla@caviumnetworks.com>,
<thomas.monjalon@6wind.com>
Subject: Re: [PATCHv3 1/2] config/armv8a: disable igb_uio
Date: Thu, 12 May 2016 08:30:01 +0530 [thread overview]
Message-ID: <20160512030000.GA3084@localhost.localdomain> (raw)
In-Reply-To: <20160511112559.69dcff13@xeon-e3>
On Wed, May 11, 2016 at 11:25:59AM -0700, Stephen Hemminger wrote:
> On Wed, 11 May 2016 22:32:16 +0530
> Jerin Jacob <jerin.jacob@caviumnetworks.com> wrote:
>
> > On Wed, May 11, 2016 at 08:22:59AM -0700, Stephen Hemminger wrote:
> > > On Wed, 11 May 2016 19:17:58 +0530
> > > Hemant Agrawal <hemant.agrawal@nxp.com> wrote:
> > >
> > > > IGB_UIO not supported for arm64 arch in kernel so disable.
> > > >
> > > > Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> > > > Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
> > >
> > > Really, I have use IGB_UIO on ARM64
> >
> > May I know what is the technical use case for igb_uio on arm64
> > which cannot be addressed through vfio or vfioionommu.
>
> I was running on older kernel which did not support vfioionommu mode.
That way if we see older and latest kernel does not have ibg_uio(due to
sysfs mmap issue) support .If you are back-porting the changes
I recommend to back port vfioionommu changes to old kernel.
If it comes to out of tree then dpdk out of tree configuration can also set
CONFIG_RTE_EAL_IGB_UIO or even while configuring dpdk.
IMO, It is better to keep arm64 dpdk.org changes inline with
upstream arm64 linux kernel changes.
What do you think?
next prev parent reply other threads:[~2016-05-12 3:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-11 13:47 [PATCHv3 1/2] config/armv8a: disable igb_uio Hemant Agrawal
2016-05-11 13:47 ` [PATCHv3 2/2] mk: Introduce NXP dpaa2 architecture based on armv8-a Hemant Agrawal
2016-05-11 15:22 ` [PATCHv3 1/2] config/armv8a: disable igb_uio Stephen Hemminger
2016-05-11 16:57 ` Santosh Shukla
2016-05-11 17:02 ` Jerin Jacob
2016-05-11 18:25 ` Stephen Hemminger
2016-05-12 2:01 ` Jianbo Liu
2016-05-12 3:17 ` Santosh Shukla
2016-05-12 3:42 ` Jianbo Liu
2016-05-12 5:06 ` Santosh Shukla
2016-05-12 5:54 ` Jianbo Liu
2016-05-12 8:57 ` Santosh Shukla
2016-05-12 9:52 ` Jianbo Liu
2016-05-12 10:31 ` Santosh Shukla
2016-05-13 1:43 ` Jianbo Liu
2016-05-13 3:37 ` Hemant Agrawal
2016-05-13 7:47 ` Jerin Jacob
2016-05-13 10:09 ` Jianbo Liu
2016-05-12 3:00 ` Jerin Jacob [this message]
2016-05-13 12:50 ` Thomas Monjalon
2016-05-13 13:11 ` Santosh Shukla
2016-05-18 14:28 ` Thomas Monjalon
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