netdev - Re: [PATCH net-next v2 10/10] gve: Implement queue api

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Date: Thu, 9 May 2024 10:46:54 -0700
From: David Wei <dw@...idwei.uk>
To: Mina Almasry <almasrymina@...gle.com>
Cc: Shailend Chand <shailend@...gle.com>, netdev@...r.kernel.org,
 davem@...emloft.net, edumazet@...gle.com, hramamurthy@...gle.com,
 jeroendb@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 pkaligineedi@...gle.com, rushilg@...gle.com, willemb@...gle.com,
 ziweixiao@...gle.com
Subject: Re: [PATCH net-next v2 10/10] gve: Implement queue api

On 2024-05-08 10:09, Mina Almasry wrote:
> On Tue, May 7, 2024 at 2:06 PM David Wei <dw@...idwei.uk> wrote:
>>
>> On 2024-05-06 11:47, Mina Almasry wrote:
>>> On Mon, May 6, 2024 at 11:09 AM David Wei <dw@...idwei.uk> wrote:
>>>>
>>>> On 2024-05-01 16:25, Shailend Chand wrote:
>>>>> The new netdev queue api is implemented for gve.
>>>>>
>>>>> Tested-by: Mina Almasry <almasrymina@...gle.com>
>>>>> Reviewed-by:  Mina Almasry <almasrymina@...gle.com>
>>>>> Reviewed-by: Praveen Kaligineedi <pkaligineedi@...gle.com>
>>>>> Reviewed-by: Harshitha Ramamurthy <hramamurthy@...gle.com>
>>>>> Signed-off-by: Shailend Chand <shailend@...gle.com>
>>>>> ---
>>>>>  drivers/net/ethernet/google/gve/gve.h        |   6 +
>>>>>  drivers/net/ethernet/google/gve/gve_dqo.h    |   6 +
>>>>>  drivers/net/ethernet/google/gve/gve_main.c   | 177 +++++++++++++++++--
>>>>>  drivers/net/ethernet/google/gve/gve_rx.c     |  12 +-
>>>>>  drivers/net/ethernet/google/gve/gve_rx_dqo.c |  12 +-
>>>>>  5 files changed, 189 insertions(+), 24 deletions(-)
>>>>>
>>>>
>>>> [...]
>>>>
>>>>> +static const struct netdev_queue_mgmt_ops gve_queue_mgmt_ops = {
>>>>> +     .ndo_queue_mem_size     =       sizeof(struct gve_rx_ring),
>>>>> +     .ndo_queue_mem_alloc    =       gve_rx_queue_mem_alloc,
>>>>> +     .ndo_queue_mem_free     =       gve_rx_queue_mem_free,
>>>>> +     .ndo_queue_start        =       gve_rx_queue_start,
>>>>> +     .ndo_queue_stop         =       gve_rx_queue_stop,
>>>>> +};
>>>>
>>>> Shailend, Mina, do you have code that calls the ndos somewhere?
>>>
>>> I plan to rebase the devmem TCP series on top of these ndos and submit
>>> that, likely sometime this week. The ndos should be used from an
>>> updated version of [RFC,net-next,v8,04/14] netdev: support binding
>>> dma-buf to netdevice
>>
>> Now that queue API ndos have merged, could you please send this as a
>> separate series and put it somewhere where it can be re-used e.g.
>> netdev_rx_queue.c?
>>
> 
> Definitely happy to put it in a generic place like netdev_rx_queue.c
> like you did, but slight pushback to putting it into its own series.
> With the ndos merged finally, I can take our devmem TCP series out of
> RFC and I am eager to do so. Making it dependent on a change that is
> in another series means it must remain RFC.
> 
> What I can do here is put this change into its own patch in the devmem
> TCP series. Once that is reviewed the maintainers may apply that patch
> out of the series. I can also put it in its own series and keep devmem
> TCP in RFC for now if you insist :D

No, that's fine. Please put it at the front of the series once you're
ready. I'll cherrypick it into our series.

> 
>