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From: Pavel Begunkov <[email protected]>
To: Mina Almasry <[email protected]>, David Wei <[email protected]>
Cc: [email protected], [email protected],
	Jens Axboe <[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]>
Subject: Re: [RFC PATCH v3 14/20] net: page pool: add io_uring memory provider
Date: Wed, 20 Dec 2023 00:04:13 +0000	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAHS8izP0-BtwxJpO3A_th+XAgpVokz4FGFct9RCRFBrK4YiLNQ@mail.gmail.com>

On 12/19/23 23:39, Mina Almasry wrote:
> On Tue, Dec 19, 2023 at 1:04 PM David Wei <[email protected]> wrote:
>>
>> From: Pavel Begunkov <[email protected]>
>>
>> Allow creating a special io_uring pp memory providers, which will be for
>> implementing io_uring zerocopy receive.
>>
>> Signed-off-by: Pavel Begunkov <[email protected]>
>> Signed-off-by: David Wei <[email protected]>
> 
> For your non-RFC versions, I think maybe you want to do a patch by
> patch make W=1. I suspect this patch would build fail, because the
> next patch adds the io_uring_pp_zc_ops. You're likely skipping this
> step because this is an RFC, which is fine.

Hmm? io_uring_pp_zc_ops is added is Patch 13, used in Patch 14.
Compiles well.


>> ---
>>   include/net/page_pool/types.h | 1 +
>>   net/core/page_pool.c          | 6 ++++++
>>   2 files changed, 7 insertions(+)
>>
>> diff --git a/include/net/page_pool/types.h b/include/net/page_pool/types.h
>> index fd846cac9fb6..f54ee759e362 100644
>> --- a/include/net/page_pool/types.h
>> +++ b/include/net/page_pool/types.h
>> @@ -129,6 +129,7 @@ struct mem_provider;
>>   enum pp_memory_provider_type {
>>          __PP_MP_NONE, /* Use system allocator directly */
>>          PP_MP_DMABUF_DEVMEM, /* dmabuf devmem provider */
>> +       PP_MP_IOU_ZCRX, /* io_uring zerocopy receive provider */
>>   };
>>
>>   struct pp_memory_provider_ops {
>> diff --git a/net/core/page_pool.c b/net/core/page_pool.c
>> index 9e3073d61a97..ebf5ff009d9d 100644
>> --- a/net/core/page_pool.c
>> +++ b/net/core/page_pool.c
>> @@ -21,6 +21,7 @@
>>   #include <linux/ethtool.h>
>>   #include <linux/netdevice.h>
>>   #include <linux/genalloc.h>
>> +#include <linux/io_uring/net.h>
>>
>>   #include <trace/events/page_pool.h>
>>
>> @@ -242,6 +243,11 @@ static int page_pool_init(struct page_pool *pool,
>>          case PP_MP_DMABUF_DEVMEM:
>>                  pool->mp_ops = &dmabuf_devmem_ops;
>>                  break;
>> +#if defined(CONFIG_IO_URING)
>> +       case PP_MP_IOU_ZCRX:
>> +               pool->mp_ops = &io_uring_pp_zc_ops;
>> +               break;
>> +#endif
>>          default:
>>                  err = -EINVAL;
>>                  goto free_ptr_ring;
>> --
>> 2.39.3
>>
> 
> 
> --
> Thanks,
> Mina

-- 
Pavel Begunkov

  reply	other threads:[~2023-12-20  0:09 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
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 [this message]
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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