From: Jakub Kicinski <kuba@kernel.org>
To: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: netdev@vger.kernel.org, "Björn Töpel" <bjorn@kernel.org>,
"Magnus Karlsson" <magnus.karlsson@intel.com>,
"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
"Jonathan Lemon" <jonathan.lemon@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
bpf@vger.kernel.org, virtualization@lists.linux-foundation.org,
"Michael S. Tsirkin" <mst@redhat.com>,
"Guenter Roeck" <linux@roeck-us.net>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Jens Axboe" <axboe@kernel.dk>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Christoph Hellwig" <hch@infradead.org>
Subject: Re: [PATCH net-next] xsk: introduce xsk_dma_ops
Date: Fri, 21 Apr 2023 06:50:59 -0700 [thread overview]
Message-ID: <20230421065059.1bc78133@kernel.org> (raw)
In-Reply-To: <1682062264.418752-2-xuanzhuo@linux.alibaba.com>
On Fri, 21 Apr 2023 15:31:04 +0800 Xuan Zhuo wrote:
> I am not particularly familiar with dma-bufs. I want to know if this mechanism
> can solve the problem of virtio-net.
>
> I saw this framework, allowing the driver do something inside the ops of
> dma-bufs.
>
> If so, is it possible to propose a new patch based on dma-bufs?
I haven't looked in detail, maybe Olek has? AFAIU you'd need to rework
uAPI of XSK to allow user to pass in a dma-buf region rather than just
a user VA. So it may be a larger effort but architecturally it may be
the right solution.
next prev parent reply other threads:[~2023-04-21 13:51 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-17 3:27 [PATCH net-next] xsk: introduce xsk_dma_ops Xuan Zhuo
2023-04-17 3:27 ` Xuan Zhuo
2023-04-17 4:24 ` Christoph Hellwig
2023-04-17 4:24 ` Christoph Hellwig
2023-04-17 5:58 ` Xuan Zhuo
2023-04-17 5:58 ` Xuan Zhuo
2023-04-17 18:56 ` Jakub Kicinski
2023-04-17 18:57 ` Jakub Kicinski
2023-04-18 1:07 ` Jason Wang
2023-04-18 1:07 ` Jason Wang
2023-04-18 1:19 ` Jakub Kicinski
2023-04-18 2:19 ` Xuan Zhuo
2023-04-18 2:19 ` Xuan Zhuo
2023-04-18 2:54 ` Jakub Kicinski
2023-04-18 5:01 ` Christoph Hellwig
2023-04-18 5:01 ` Christoph Hellwig
2023-04-18 6:19 ` Jakub Kicinski
2023-04-19 5:16 ` Christoph Hellwig
2023-04-19 5:16 ` Christoph Hellwig
2023-04-19 13:14 ` Alexander Lobakin
2023-04-19 13:40 ` Xuan Zhuo
2023-04-19 13:40 ` Xuan Zhuo
2023-04-20 6:16 ` Christoph Hellwig
2023-04-20 6:16 ` Christoph Hellwig
2023-04-20 13:59 ` Alexander Lobakin
2023-04-20 16:15 ` Christoph Hellwig
2023-04-20 16:15 ` Christoph Hellwig
2023-04-20 16:42 ` Alexander Lobakin
2023-05-01 4:28 ` Christoph Hellwig
2023-05-01 4:28 ` Christoph Hellwig
2023-04-19 16:45 ` Jakub Kicinski
2023-04-20 6:19 ` Christoph Hellwig
2023-04-20 6:19 ` Christoph Hellwig
2023-04-20 9:11 ` Xuan Zhuo
2023-04-20 9:11 ` Xuan Zhuo
2023-04-20 16:18 ` Christoph Hellwig
2023-04-20 16:18 ` Christoph Hellwig
2023-04-25 8:12 ` Michael S. Tsirkin
2023-04-25 8:12 ` Michael S. Tsirkin
2023-05-01 4:16 ` Christoph Hellwig
2023-05-01 4:16 ` Christoph Hellwig
2023-04-20 14:13 ` Jakub Kicinski
2023-04-21 7:31 ` Xuan Zhuo
2023-04-21 7:31 ` Xuan Zhuo
2023-04-21 13:50 ` Jakub Kicinski [this message]
2023-04-23 1:54 ` Xuan Zhuo
2023-04-23 1:54 ` Xuan Zhuo
2023-04-24 15:28 ` Jakub Kicinski
2023-04-24 15:28 ` Alexander Lobakin
2023-04-25 2:11 ` Xuan Zhuo
2023-04-25 2:11 ` Xuan Zhuo
2023-04-18 2:15 ` Xuan Zhuo
2023-04-18 2:15 ` Xuan Zhuo
2023-04-17 6:38 ` kernel test robot
2023-04-17 6:38 ` kernel test robot
2023-04-17 6:43 ` Michael S. Tsirkin
2023-04-17 6:43 ` Michael S. Tsirkin
2023-04-17 6:48 ` Xuan Zhuo
2023-04-17 6:48 ` Xuan Zhuo
2023-04-17 6:48 ` kernel test robot
2023-04-17 6:48 ` kernel test robot
2023-04-19 13:22 ` Alexander Lobakin
2023-04-19 13:42 ` Xuan Zhuo
2023-04-19 13:42 ` Xuan Zhuo
2023-04-20 6:12 ` Christoph Hellwig
2023-04-20 6:12 ` Christoph Hellwig
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