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

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Message-ID: <36dc2b93-e519-4ff5-93b2-62a767ad0528@kernel.dk>
Date: Wed, 9 Oct 2024 12:09:51 -0600
From: Jens Axboe <axboe@...nel.dk>
To: David Wei <dw@...idwei.uk>, io-uring@...r.kernel.org,
 netdev@...r.kernel.org
Cc: Pavel Begunkov <asml.silence@...il.com>, Jakub Kicinski
 <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jesper Dangaard Brouer <hawk@...nel.org>, David Ahern <dsahern@...nel.org>,
 Mina Almasry <almasrymina@...gle.com>
Subject: Re: [PATCH v1 09/15] io_uring/zcrx: add interface queue and refill
 queue

On 10/9/24 11:50 AM, Jens Axboe wrote:
>> +struct io_uring_zcrx_rqe {
>> +	__u64	off;
>> +	__u32	len;
>> +	__u32	__pad;
>> +};
>> +
>> +struct io_uring_zcrx_cqe {
>> +	__u64	off;
>> +	__u64	__pad;
>> +};
> 
> Would be nice to avoid padding for this one as it doubles its size. But
> at the same time, always nice to have padding for future proofing...

Ah nevermind, I see it mirrors the io_uring_cqe itself. Disregard.

-- 
Jens Axboe