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Currently the underlying RDMA device is chosen at transport set-up time. But it will soon be at connect time instead. The maximum size of a transport header is based on device capabilities. Thus transport header buffers have to be allocated _after_ the underlying device has been chosen (via address and route resolution); ie, in the connect worker. Thus, move the allocation of transport header buffers to the connect worker, after the point at which the underlying RDMA device has been chosen. This also means the RDMA device is available to do a DMA mapping of these buffers at connect time, instead of in the hot I/O path. Make that optimization as well. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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.