From: Jakub Kicinski <[email protected]>
To: Pavel Begunkov <[email protected]>
Cc: David Wei <[email protected]>,
[email protected], [email protected],
Jens Axboe <[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]>,
Stanislav Fomichev <[email protected]>,
Joe Damato <[email protected]>,
Pedro Tammela <[email protected]>
Subject: Re: [PATCH net-next v10 01/22] net: make page_pool_ref_netmem work with net iovs
Date: Wed, 15 Jan 2025 18:48:50 -0800 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On Thu, 16 Jan 2025 02:12:06 +0000 Pavel Begunkov wrote:
> On 1/16/25 00:30, Jakub Kicinski wrote:
> > On Wed, 8 Jan 2025 14:06:22 -0800 David Wei wrote:
> >> From: Pavel Begunkov <[email protected]>
> >>
> >> page_pool_ref_netmem() should work with either netmem representation, but
> >> currently it casts to a page with netmem_to_page(), which will fail with
> >> net iovs. Use netmem_get_pp_ref_count_ref() instead.
> >
> > This is a fix, right? If we try to coalesce a cloned netmem skb
> > we'll crash.
>
> True, I missed it it's actually used.
I'll add:
Fixes: 8ab79ed50cf1 ("page_pool: devmem support")
and we'll send it to Linus tomorrow. Hope that's okay.
next prev parent reply other threads:[~2025-01-16 2:48 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-08 22:06 [PATCH net-next v10 00/22] io_uring zero copy rx David Wei
2025-01-08 22:06 ` [PATCH net-next v10 01/22] net: make page_pool_ref_netmem work with net iovs David Wei
2025-01-16 0:30 ` Jakub Kicinski
2025-01-16 2:12 ` Pavel Begunkov
2025-01-16 2:48 ` Jakub Kicinski [this message]
2025-01-16 16:45 ` Pavel Begunkov
2025-01-08 22:06 ` [PATCH net-next v10 02/22] net: page_pool: don't cast mp param to devmem David Wei
2025-01-08 22:06 ` [PATCH net-next v10 03/22] net: prefix devmem specific helpers David Wei
2025-01-08 22:06 ` [PATCH net-next v10 04/22] net: generalise net_iov chunk owners David Wei
2025-01-16 0:31 ` Jakub Kicinski
2025-01-08 22:06 ` [PATCH net-next v10 05/22] net: page pool: export page_pool_set_dma_addr_netmem() David Wei
2025-01-16 0:35 ` Jakub Kicinski
2025-01-16 0:39 ` Jakub Kicinski
2025-01-16 2:12 ` Pavel Begunkov
2025-01-08 22:06 ` [PATCH net-next v10 06/22] net: page_pool: create hooks for custom memory providers David Wei
2025-01-16 0:44 ` Jakub Kicinski
2025-01-16 2:25 ` Pavel Begunkov
2025-01-08 22:06 ` [PATCH net-next v10 07/22] netdev: add io_uring memory provider info David Wei
2025-01-16 0:45 ` Jakub Kicinski
2025-01-08 22:06 ` [PATCH net-next v10 08/22] net: page_pool: add callback for mp info printing David Wei
2025-01-16 0:46 ` Jakub Kicinski
2025-01-08 22:06 ` [PATCH net-next v10 09/22] net: page_pool: add a mp hook to unregister_netdevice* David Wei
2025-01-08 22:06 ` [PATCH net-next v10 10/22] net: prepare for non devmem TCP memory providers David Wei
2025-01-08 22:06 ` [PATCH net-next v10 11/22] net: page_pool: add memory provider helpers David Wei
2025-01-16 0:49 ` Jakub Kicinski
2025-01-08 22:06 ` [PATCH net-next v10 12/22] io_uring/zcrx: add interface queue and refill queue David Wei
2025-01-08 22:06 ` [PATCH net-next v10 13/22] io_uring/zcrx: add io_zcrx_area David Wei
2025-01-08 22:06 ` [PATCH net-next v10 14/22] io_uring/zcrx: grab a net device David Wei
2025-01-16 1:06 ` Jakub Kicinski
2025-01-16 2:33 ` Pavel Begunkov
2025-01-16 3:12 ` Jakub Kicinski
2025-01-16 16:46 ` Pavel Begunkov
2025-01-08 22:06 ` [PATCH net-next v10 15/22] io_uring/zcrx: implement zerocopy receive pp memory provider David Wei
2025-01-13 22:32 ` Jens Axboe
2025-01-08 22:06 ` [PATCH net-next v10 16/22] io_uring/zcrx: dma-map area for the device David Wei
2025-01-08 22:06 ` [PATCH net-next v10 17/22] io_uring/zcrx: add io_recvzc request David Wei
2025-01-08 22:06 ` [PATCH net-next v10 18/22] io_uring/zcrx: set pp memory provider for an rx queue David Wei
2025-01-16 1:12 ` Jakub Kicinski
2025-01-16 2:27 ` Pavel Begunkov
2025-01-08 22:06 ` [PATCH net-next v10 19/22] io_uring/zcrx: throttle receive requests David Wei
2025-01-08 22:06 ` [PATCH net-next v10 20/22] io_uring/zcrx: add copy fallback David Wei
2025-01-08 22:06 ` [PATCH net-next v10 21/22] net: add documentation for io_uring zcrx David Wei
2025-01-08 22:06 ` [PATCH net-next v10 22/22] io_uring/zcrx: add selftest David Wei
2025-01-09 17:33 ` Stanislav Fomichev
2025-01-09 17:50 ` David Wei
2025-01-13 21:32 ` Pavel Begunkov
2025-01-14 0:11 ` Stanislav Fomichev
2025-01-16 0:53 ` Jakub Kicinski
2025-01-16 22:58 ` David Wei
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