[RFC PATCH v3 0/3] Async nvme passthrough over io_uring

[Jens Axboe]

On 3/17/21 3:31 AM, Kanchan Joshi wrote:
> On Tue, Mar 16, 2021 at 9:31 PM Jens Axboe <axboe at kernel.dk> wrote:
>>
>> On 3/16/21 8:01 AM, Kanchan Joshi wrote:
>>> This series adds async passthrough capability for nvme block-dev over
>>> iouring_cmd. The patches are on top of Jens uring-cmd branch:
>>> https://git.kernel.dk/cgit/linux-block/log/?h=io_uring-fops.v3
>>>
>>> Application is expected to allocate passthrough command structure, set
>>> it up traditionally, and pass its address via "block_uring_cmd->addr".
>>> On completion, CQE is posted with completion-status after any ioctl
>>> specific buffer/field update.
>>
>> Do you have a test app? I'd be curious to try and add support for this
>> to t/io_uring from fio just to run some perf numbers.
> 
> Yes Jens. Need to do a couple of things to make it public, will post it today.

Sounds good! I commented on 1/3, I think it can be simplified and
cleaned up quite a bit, which is great. Then let's base it on top of v4
that I posted, let me know if you run into any issues with that.

-- 
Jens Axboe