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The first step toward using NAPI in the UD/TX flow is to separate between two flows, the NAPI and the xmit, meaning no use of shared variables between both flows. This patch takes out the tx_outstanding variable that was used in both flows and instead the driver uses the 2 cyclic ring variables: tx_head and tx_tail, tx_head used in the xmit flow and tx_tail in the NAPI flow. Cc: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reviewed-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.