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In several situations the CM may send a reply to a received MAD without the reply being directly linked with a cm_id. For example, it may send a REJ in response to a REQ which does not match a listener. Or, it may send a DREP in response to a DREQ if the cm_id has already been destroyed. This can happen if the original DREP was lost and the DREQ was retried. When such a response MAD completes, it updates a counter tracking how many MADs were retried. However, not all response MADs issued directly by the CM may be retries. The REJ mentioned in the example above is such a case. To distinguish between responses which were retries versus those that are not, the send_handler performs the following check: is a retry if the response is not associated with a cm_id and the response is not a REJ message. Replace this indirect method of checking if a response is a retry with an explicit check. Note that these retries are generated directly by the CM, rather than retried by the MAD layer. This change will be needed by later changes which would otherwise break the indirect check. Signed-off-by: Sean Hefty <shefty@nvidia.com> Signed-off-by: Or Har-Toov <ohartoov@nvidia.com> Signed-off-by: Vlad Dumitrescu <vdumitrescu@nvidia.com> Link: https://patch.msgid.link/1ee6e2a68f8de1992b9da23aa1d7e3f9f25e0036.1731495873.git.leon@kernel.org Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.