Re: [ [PATCH v2] 00/13] Add virtio support in arm/arm64

[Santosh Shukla <sshukla@mvista.com>]

On Wed, Dec 16, 2015 at 2:17 PM, David Marchand
<david.marchand@6wind.com> wrote:
> Hello Santosh,
>
> On Wed, Dec 16, 2015 at 8:48 AM, Santosh Shukla <sshukla@mvista.com> wrote:
>>
>> Hi Yuanhan, Huawei and Others.
>>
>> I got arch specific review comment from arm maintainers and I am waiting
>> for your review feedback on virtio specific patches? Is v3 patch and
>> virtio
>> iopci bar mapping to user-space approach ok with all? Thanks.
>
>
> Please, don't forget to CC me as well.
>
> I did something similar for powerpc, but there was no need to add any
> remapping in igb_uio.

Is it for mapping iopci bar? does that includes virtio

For detailed explanation refer [1]

[1] http://dpdk.org/dev/patchwork/patch/9365/

> Is there something specific to arm that makes it impossible to reuse
> resources mmapping from /sys ?

/sysfs wont map resource0, it could map resource1 i.e. iomem but
virtio header resides in iopci bar region so iomem memory wont be
effective /  invalid addr. For that someone to explicitly map iopci
region thus this code/pach.

> I can send a patch that should do the job for eal.
>

Pl. send then, My patches are waiting for review for quite a long
time. It will be good if you send now.

> I am a bit short on time and will be on holidays for two weeks, so I can't
> look at these patches before January.
>
>
> Regards,
> --
> David Marchand