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d99dc602e2
This patch implements the mechanism to accelerate the transmit side of a multiple transmit queue RDMA netdev by submitting the packets to the SDMA engine directly instead of sending through the verbs layer. This patch also changes the UD/SEND_ONLY op to output the entropy value in byte 0 of deth[1]. UD/SEND_ONLY_WITH_IMMEDIATE uses the previous behavior with no entropy value being output. The code in the ipoib rdma netdev which submits tx requests upon successful submission will call trace_sdma_output_ibhdr to output the ibhdr to the trace buffer. Link: https://lore.kernel.org/r/20200511160548.173205.45616.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Gary Leshner <Gary.S.Leshner@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.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.