Re: [PATCH v1 09/15] io_uring/zcrx: add interface queue and refill queue

Pavel Begunkov
2024-10-11T22:10:56Z

On 10/9/24 18:50, Jens Axboe wrote:
> On 10/7/24 4:15 PM, David Wei wrote:
>> From: David Wei <davidhwei@meta.com>
...
>> diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
>> index adc2524fd8e3..567cdb89711e 100644
>> --- a/include/uapi/linux/io_uring.h
>> +++ b/include/uapi/linux/io_uring.h
>> @@ -595,6 +597,9 @@ enum io_uring_register_op {
>> IORING_REGISTER_NAPI = 27,
>> IORING_UNREGISTER_NAPI = 28,
>>
>> + /* register a netdev hw rx queue for zerocopy */
>> + IORING_REGISTER_ZCRX_IFQ = 29,
>> +
>
> Will need to change as the current tree has moved a bit beyond this. Not
> a huge deal, just an FYI as it obviously impacts userspace too.

Forgot to mention, I'll rebase it for completness for next iteration,
but I expect it'll need staging a branch with net/ changes shared
b/w pulled in both trees and taking io_uring bits after on top or
something similar. We can probably deal with all such io_uring
conflicts at that time.

--
Pavel Begunkov