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Intents are nothing but pre-allocated buffers of appropriate size that are allocated on the local side and communicated to the remote side and the remote stores the list of intent ids that it is informed. Later when remote side is intenting to send data, it picks up a right intent (based on the size) and sends the data buffer and the intent id. Local side receives the data and copies it to the local intent buffer. The whole idea is to avoid stalls on the transport for allocating memory, used for copy based transports. When the remote request to allocate buffers using CMD_RX_INTENT_REQ, we allocate buffers of requested size, store the buffer id locally and also communicate the intent id to the remote. Acked-by: Arun Kumar Neelakantam <aneela@codeaurora.org> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> |
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README
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.