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On the SPARC platform we need to use the DMA_ATTR_WEAK_ORDERING attribute in our Rx path dma mapping in order to get the expected performance out of the receive path. Adding it to the Tx path has little effect, so that's not a part of this patch. Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Reviewed-by: Tushar Dave <tushar.n.dave@oracle.com> Reviewed-by: Tom Saeger <tom.saeger@oracle.com> Acked-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.