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NVMeOF controller in the passsthru mode is capable of handling wide set of admin commands including vender specific passhtru admin comands. The vendor specific admin commands are used to read the large drive logs and can take longer than default NVMe commands, i.e. for passthru requests the timeout value may differ from the passthru controller's default timeout values (nvme-core:admin_timeout). Add a configfs attribute so that user can set the admin timeout values. In case if this configfs value is not set nvme_alloc_request() will set the ADMIN_TIMEOUT value when request queuedata is NULL. Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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 Restructured Text 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.