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When sending a RDMA_CM_REQUEST, the NVMe RDMA Transport Specification allows you to populate the cntlid field in the RDMA_CM_REQUEST Private Data. The cntlid is returned by the target on completion of the first RDMA_CM_REQUEST command (which creates the admin queue). The cntlid field can then be populated by the host when the I/O queues are created (using additional RDMA_CM_REQUEST commands), such that the target can perform extra validation for additional RDMA_CM_REQUEST commands. This additional error code and error message is also added, such that nvme_rdma_cm_msg() will display the proper error message if the target fails the RDMA_CM_REQUEST command because of this extra validation. Signed-off-by: Niklas Cassel <cassel@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@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.