From: Christoph Hellwig <hch@lst.de>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Aurelien Aptel <aaptel@nvidia.com>,
linux-nvme@lists.infradead.org, netdev@vger.kernel.org,
sagi@grimberg.me, hch@lst.de, kbusch@kernel.org, axboe@fb.com,
chaitanyak@nvidia.com, davem@davemloft.net
Subject: Re: [PATCH v25 00/20] nvme-tcp receive offloads
Date: Fri, 31 May 2024 08:11:42 +0200 [thread overview]
Message-ID: <20240531061142.GB17723@lst.de> (raw)
In-Reply-To: <20240530183906.4534c029@kernel.org>
FYI, I still absolutely detest this code. I know people want to
avoid the page copy for NVMe over TCP (or any TCP based storage
protocols for that matter), but having these weird vendors specific
hooks all the way up into the application protocol are just horrible.
IETF has standardized a generic data placement protocol, which is
part of iWarp. Even if folks don't like RDMA it exists to solve
exactly these kinds of problems of data placement. And if we can't
arse folks into standard data placement methods we at least need it
vendor independent and without hooks into the actual protocol
driver.
next prev parent reply other threads:[~2024-05-31 6:11 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-29 16:00 [PATCH v25 00/20] nvme-tcp receive offloads Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 01/20] net: Introduce direct data placement tcp offload Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 02/20] netlink: add new family to manage ULP_DDP enablement and stats Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 03/20] iov_iter: skip copy if src == dst for direct data placement Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 04/20] net/tls,core: export get_netdev_for_sock Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 05/20] nvme-tcp: Add DDP offload control path Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 06/20] nvme-tcp: Add DDP data-path Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 07/20] nvme-tcp: RX DDGST offload Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 08/20] nvme-tcp: Deal with netdevice DOWN events Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 09/20] Documentation: add ULP DDP offload documentation Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 10/20] net/mlx5e: Rename from tls to transport static params Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 11/20] net/mlx5e: Refactor ico sq polling to get budget Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 12/20] net/mlx5: Add NVMEoTCP caps, HW bits, 128B CQE and enumerations Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 13/20] net/mlx5e: NVMEoTCP, offload initialization Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 14/20] net/mlx5e: TCP flow steering for nvme-tcp acceleration Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 15/20] net/mlx5e: NVMEoTCP, use KLM UMRs for buffer registration Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 16/20] net/mlx5e: NVMEoTCP, queue init/teardown Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 17/20] net/mlx5e: NVMEoTCP, ddp setup and resync Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 18/20] net/mlx5e: NVMEoTCP, async ddp invalidation Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 19/20] net/mlx5e: NVMEoTCP, data-path for DDP+DDGST offload Aurelien Aptel
2024-05-29 16:00 ` [PATCH v25 20/20] net/mlx5e: NVMEoTCP, statistics Aurelien Aptel
2024-05-31 1:39 ` [PATCH v25 00/20] nvme-tcp receive offloads Jakub Kicinski
2024-05-31 6:11 ` Christoph Hellwig [this message]
2024-06-03 7:09 ` Sagi Grimberg
2024-06-10 12:29 ` Christoph Hellwig
2024-06-10 14:30 ` Sagi Grimberg
2024-06-11 6:41 ` Christoph Hellwig
2024-06-11 11:01 ` Sagi Grimberg
2024-06-15 21:34 ` David Laight
2024-06-10 10:07 ` Sagi Grimberg
2024-06-10 13:23 ` Aurelien Aptel
2024-06-26 15:21 ` Aurelien Aptel
2024-06-26 15:50 ` Jakub Kicinski
2024-06-26 19:34 ` Chaitanya Kulkarni
2024-06-26 19:43 ` Jakub Kicinski
2024-06-26 20:10 ` Chaitanya Kulkarni
2024-06-26 20:14 ` Jakub Kicinski
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