From: Christoph Hellwig <hch@infradead.org>
To: Mina Almasry <almasrymina@google.com>
Cc: "Shailend Chand" <shailend@google.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-arch@vger.kernel.org,
linux-kselftest@vger.kernel.org, bpf@vger.kernel.org,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Jeroen de Borst" <jeroendb@google.com>,
"Praveen Kaligineedi" <pkaligineedi@google.com>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"David Ahern" <dsahern@kernel.org>,
"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
"Shuah Khan" <shuah@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Yunsheng Lin" <linyunsheng@huawei.com>,
"Harshitha Ramamurthy" <hramamurthy@google.com>,
"Shakeel Butt" <shakeelb@google.com>,
"Jason Gunthorpe" <jgg@nvidia.com>
Subject: Re: [net-next v1 00/16] Device Memory TCP
Date: Mon, 11 Dec 2023 21:58:07 -0800 [thread overview]
Message-ID: <ZXf2b/Bmupwm9LaD@infradead.org> (raw)
In-Reply-To: <20231208005250.2910004-1-almasrymina@google.com>
Please don't spread scatterlists further. They are a bad data structure
that mix input data (page, offset, len) and output data (phys_addr,
dma_offset, dma_len), and do in a horrible way for iommmu mappings that
can coalesce. Jason and coworkers have been looking into the long
overdue API to better support batch mapping of better data structures,
and this is a prime example of new code that should be using.
next prev parent reply other threads:[~2023-12-12 5:58 UTC|newest]
Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-08 0:52 [net-next v1 00/16] Device Memory TCP Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 01/16] net: page_pool: factor out releasing DMA from releasing the page Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-10 3:49 ` Shakeel Butt
2023-12-10 3:49 ` Shakeel Butt
2023-12-12 8:11 ` Ilias Apalodimas
2023-12-12 8:11 ` Ilias Apalodimas
2023-12-08 0:52 ` [net-next v1 02/16] net: page_pool: create hooks for custom page providers Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-12 8:07 ` Ilias Apalodimas
2023-12-12 8:07 ` Ilias Apalodimas
2023-12-12 14:47 ` Mina Almasry
2023-12-12 14:47 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 03/16] queue_api: define queue api Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-14 1:15 ` Jakub Kicinski
2023-12-14 1:15 ` Jakub Kicinski
2023-12-08 0:52 ` [net-next v1 04/16] gve: implement " Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2024-03-05 11:45 ` Arnd Bergmann
2023-12-08 0:52 ` [net-next v1 05/16] net: netdev netlink api to bind dma-buf to a net device Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-14 1:17 ` Jakub Kicinski
2023-12-14 1:17 ` Jakub Kicinski
2023-12-08 0:52 ` [net-next v1 06/16] netdev: support binding dma-buf to netdevice Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 15:40 ` kernel test robot
2023-12-08 15:40 ` kernel test robot
2023-12-08 16:02 ` kernel test robot
2023-12-08 16:02 ` kernel test robot
2023-12-08 17:48 ` David Ahern
2023-12-08 17:48 ` David Ahern
2023-12-08 19:22 ` Mina Almasry
2023-12-08 19:22 ` Mina Almasry
2023-12-08 20:32 ` Mina Almasry
2023-12-08 20:32 ` Mina Almasry
2023-12-09 23:29 ` David Ahern
2023-12-09 23:29 ` David Ahern
2023-12-11 2:19 ` Mina Almasry
2023-12-11 2:19 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 07/16] netdev: netdevice devmem allocator Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 17:56 ` David Ahern
2023-12-08 17:56 ` David Ahern
2023-12-08 19:27 ` Mina Almasry
2023-12-08 19:27 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 08/16] memory-provider: dmabuf devmem memory provider Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 22:48 ` Pavel Begunkov
2023-12-08 22:48 ` Pavel Begunkov
2023-12-08 23:25 ` Mina Almasry
2023-12-08 23:25 ` Mina Almasry
2023-12-10 3:03 ` Pavel Begunkov
2023-12-10 3:03 ` Pavel Begunkov
2023-12-11 2:30 ` Mina Almasry
2023-12-11 2:30 ` Mina Almasry
2023-12-11 20:35 ` Pavel Begunkov
2023-12-11 20:35 ` Pavel Begunkov
2023-12-14 20:03 ` Mina Almasry
2023-12-14 20:03 ` Mina Almasry
2023-12-19 23:55 ` Pavel Begunkov
2023-12-19 23:55 ` Pavel Begunkov
2023-12-08 23:05 ` Pavel Begunkov
2023-12-08 23:05 ` Pavel Begunkov
2023-12-12 12:25 ` Jason Gunthorpe
2023-12-12 12:25 ` Jason Gunthorpe
2023-12-12 13:07 ` Christoph Hellwig
2023-12-12 14:26 ` Mina Almasry
2023-12-12 14:26 ` Mina Almasry
2023-12-12 14:39 ` Jason Gunthorpe
2023-12-12 14:39 ` Jason Gunthorpe
2023-12-12 14:58 ` Mina Almasry
2023-12-12 14:58 ` Mina Almasry
2023-12-12 15:08 ` Jason Gunthorpe
2023-12-12 15:08 ` Jason Gunthorpe
2023-12-13 1:09 ` Mina Almasry
2023-12-13 1:09 ` Mina Almasry
2023-12-13 2:19 ` David Ahern
2023-12-13 2:19 ` David Ahern
2023-12-13 7:49 ` Yinjun Zhang
2023-12-13 7:49 ` Yinjun Zhang
2023-12-08 0:52 ` [net-next v1 09/16] page_pool: device memory support Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 9:30 ` Yunsheng Lin
2023-12-08 9:30 ` Yunsheng Lin
2023-12-08 16:05 ` Mina Almasry
2023-12-08 16:05 ` Mina Almasry
2023-12-11 2:04 ` Yunsheng Lin
2023-12-11 2:04 ` Yunsheng Lin
2023-12-11 2:26 ` Mina Almasry
2023-12-11 2:26 ` Mina Almasry
2023-12-11 4:04 ` Mina Almasry
2023-12-11 4:04 ` Mina Almasry
2023-12-11 11:51 ` Yunsheng Lin
2023-12-11 11:51 ` Yunsheng Lin
2023-12-11 18:14 ` Mina Almasry
2023-12-11 18:14 ` Mina Almasry
2023-12-12 11:17 ` Yunsheng Lin
2023-12-12 11:17 ` Yunsheng Lin
2023-12-12 14:28 ` Mina Almasry
2023-12-12 14:28 ` Mina Almasry
2023-12-13 11:48 ` Yunsheng Lin
2023-12-13 11:48 ` Yunsheng Lin
2023-12-13 7:52 ` Mina Almasry
2023-12-13 7:52 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 10/16] page_pool: don't release iov on elevanted refcount Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 11/16] net: support non paged skb frags Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 12/16] net: add support for skbs with unreadable frags Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 13/16] tcp: RX path for devmem TCP Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 15:40 ` kernel test robot
2023-12-08 15:40 ` kernel test robot
2023-12-08 17:55 ` David Ahern
2023-12-08 17:55 ` David Ahern
2023-12-08 19:23 ` Mina Almasry
2023-12-08 19:23 ` Mina Almasry
2023-12-08 0:52 ` [net-next v1 14/16] net: add SO_DEVMEM_DONTNEED setsockopt to release RX frags Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-12 19:08 ` Simon Horman
2023-12-12 19:08 ` Simon Horman
2023-12-08 0:52 ` [net-next v1 15/16] net: add devmem TCP documentation Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-12 19:14 ` Simon Horman
2023-12-12 19:14 ` Simon Horman
2023-12-08 0:52 ` [net-next v1 16/16] selftests: add ncdevmem, netcat for devmem TCP Mina Almasry
2023-12-08 0:52 ` Mina Almasry
2023-12-08 1:47 ` [net-next v1 00/16] Device Memory TCP Mina Almasry
2023-12-08 1:47 ` Mina Almasry
2023-12-08 17:57 ` David Ahern
2023-12-08 17:57 ` David Ahern
2023-12-08 19:31 ` Mina Almasry
2023-12-08 19:31 ` Mina Almasry
2023-12-10 3:48 ` Shakeel Butt
2023-12-10 3:48 ` Shakeel Butt
2023-12-12 5:58 ` Christoph Hellwig [this message]
2023-12-14 6:20 ` patchwork-bot+netdevbpf
2023-12-14 6:20 ` patchwork-bot+netdevbpf
2023-12-14 6:48 ` Christoph Hellwig
2023-12-14 6:51 ` Mina Almasry
2023-12-14 6:51 ` Mina Almasry
2023-12-14 6:59 ` Christoph Hellwig
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