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Wed, 03 Apr 2024 02:38:35 -0700 (PDT) Message-ID: <8164b02f-adb4-495d-af81-9264aa700771@linaro.org> Date: Wed, 3 Apr 2024 11:38:34 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] migration, docs: mark RDMA migration as deprecated To: Li Zhijian , qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Thomas Huth , =?UTF-8?Q?Daniel_P_=2E_Berrang=C3=A9?= , Yu Zhang References: <20240401035947.3310834-1-lizhijian@fujitsu.com> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20240401035947.3310834-1-lizhijian@fujitsu.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=philmd@linaro.org; helo=mail-wm1-x32a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 1/4/24 05:59, Li Zhijian wrote: > Except for RDMA migration, other parts of the RDMA subsystem have been > removed since 9.1. > > Due to the lack of unit tests and CI tests for RDMA migration, int the > past developing cycles, a few fatal errors were introduced and broke the > RDMA migration, and these issues[1][2] were not fixed until some time later. > > Modern network cards (TCP/IP) can also provide high bandwidth > (similar to RDMA) to handle the large amount of data generated during > migration. > > Issue a warning to inform the end users of the RDMA migration status. > > [1] https://lore.kernel.org/r/20230920090412.726725-1-lizhijian@fujitsu.com > [2] https://lore.kernel.org/r/CAHEcVy7HXSwn4Ow_Kog+Q+TN6f_kMeiCHevz1qGM-fbxBPp1hQ@mail.gmail.com > > CC: Peter Xu > CC: Philippe Mathieu-Daudé > CC: Fabiano Rosas > CC: Thomas Huth > CC: Daniel P. Berrangé > CC: Yu Zhang > Signed-off-by: Li Zhijian > --- > docs/about/deprecated.rst | 15 +++++++++++++++ > migration/migration.c | 1 + > 2 files changed, 16 insertions(+) Reviewed-by: Philippe Mathieu-Daudé