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From: Jens Axboe <[email protected]>
To: David Wei <[email protected]>,
	[email protected], [email protected]
Cc: Pavel Begunkov <[email protected]>,
	Jakub Kicinski <[email protected]>, Paolo Abeni <[email protected]>,
	"David S. Miller" <[email protected]>,
	Eric Dumazet <[email protected]>,
	Jesper Dangaard Brouer <[email protected]>,
	David Ahern <[email protected]>,
	Mina Almasry <[email protected]>
Subject: Re: [RFC PATCH v3 10/20] io_uring: setup ZC for an Rx queue when registering an ifq
Date: Wed, 20 Dec 2023 09:06:27 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 12/19/23 2:03 PM, David Wei wrote:
> From: David Wei <[email protected]>
> 
> This patch sets up ZC for an Rx queue in a net device when an ifq is
> registered with io_uring. The Rx queue is specified in the registration
> struct.
> 
> For now since there is only one ifq, its destruction is implicit during
> io_uring cleanup.
> 
> Signed-off-by: David Wei <[email protected]>
> ---
>  io_uring/zc_rx.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 43 insertions(+), 2 deletions(-)
> 
> diff --git a/io_uring/zc_rx.c b/io_uring/zc_rx.c
> index 7e3e6f6d446b..259e08a34ab2 100644
> --- a/io_uring/zc_rx.c
> +++ b/io_uring/zc_rx.c
> @@ -4,6 +4,7 @@
>  #include <linux/errno.h>
>  #include <linux/mm.h>
>  #include <linux/io_uring.h>
> +#include <linux/netdevice.h>
>  
>  #include <uapi/linux/io_uring.h>
>  
> @@ -11,6 +12,34 @@
>  #include "kbuf.h"
>  #include "zc_rx.h"
>  
> +typedef int (*bpf_op_t)(struct net_device *dev, struct netdev_bpf *bpf);

Let's get rid of this, since it isn't even typedef'ed on the networking
side. Doesn't really buy us anything, and it's only used once anyway.

-- 
Jens Axboe


  reply	other threads:[~2023-12-20 16:06 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-19 21:03 [RFC PATCH v3 00/20] Zero copy Rx using io_uring David Wei
2023-12-19 21:03 ` [RFC PATCH v3 01/20] net: page_pool: add ppiov mangling helper David Wei
2023-12-19 23:22   ` Mina Almasry
2023-12-19 23:59     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 02/20] tcp: don't allow non-devmem originated ppiov David Wei
2023-12-19 23:24   ` Mina Almasry
2023-12-20  1:29     ` Pavel Begunkov
2024-01-02 16:11       ` Mina Almasry
2023-12-19 21:03 ` [RFC PATCH v3 03/20] net: page pool: rework ppiov life cycle David Wei
2023-12-19 23:35   ` Mina Almasry
2023-12-20  0:49     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 04/20] net: enable napi_pp_put_page for ppiov David Wei
2023-12-19 21:03 ` [RFC PATCH v3 05/20] net: page_pool: add ->scrub mem provider callback David Wei
2023-12-19 21:03 ` [RFC PATCH v3 06/20] io_uring: separate header for exported net bits David Wei
2023-12-20 16:01   ` Jens Axboe
2023-12-19 21:03 ` [RFC PATCH v3 07/20] io_uring: add interface queue David Wei
2023-12-20 16:13   ` Jens Axboe
2023-12-20 16:23     ` Pavel Begunkov
2023-12-21  1:44     ` David Wei
2023-12-21 17:57   ` Willem de Bruijn
2023-12-30 16:25     ` Pavel Begunkov
2023-12-31 22:25       ` Willem de Bruijn
2023-12-19 21:03 ` [RFC PATCH v3 08/20] io_uring: add mmap support for shared ifq ringbuffers David Wei
2023-12-20 16:13   ` Jens Axboe
2023-12-19 21:03 ` [RFC PATCH v3 09/20] netdev: add XDP_SETUP_ZC_RX command David Wei
2023-12-19 21:03 ` [RFC PATCH v3 10/20] io_uring: setup ZC for an Rx queue when registering an ifq David Wei
2023-12-20 16:06   ` Jens Axboe [this message]
2023-12-20 16:24     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 11/20] io_uring/zcrx: implement socket registration David Wei
2023-12-19 21:03 ` [RFC PATCH v3 12/20] io_uring: add ZC buf and pool David Wei
2023-12-19 21:03 ` [RFC PATCH v3 13/20] io_uring: implement pp memory provider for zc rx David Wei
2023-12-19 23:44   ` Mina Almasry
2023-12-20  0:39     ` Pavel Begunkov
2023-12-21 19:36   ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 14/20] net: page pool: add io_uring memory provider David Wei
2023-12-19 23:39   ` Mina Almasry
2023-12-20  0:04     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 15/20] io_uring: add io_recvzc request David Wei
2023-12-20 16:27   ` Jens Axboe
2023-12-20 17:04     ` Pavel Begunkov
2023-12-20 18:09       ` Jens Axboe
2023-12-21 18:59         ` Pavel Begunkov
2023-12-21 21:32           ` Jens Axboe
2023-12-30 21:15             ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 16/20] net: execute custom callback from napi David Wei
2023-12-19 21:03 ` [RFC PATCH v3 17/20] io_uring/zcrx: add copy fallback David Wei
2023-12-19 21:03 ` [RFC PATCH v3 18/20] veth: add support for io_uring zc rx David Wei
2023-12-19 21:03 ` [RFC PATCH v3 19/20] net: page pool: generalise ppiov dma address get David Wei
2023-12-21 19:51   ` Mina Almasry
2023-12-19 21:03 ` [RFC PATCH v3 20/20] bnxt: enable io_uring zc page pool David Wei

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