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Add support for SoCs from the mt7621 family. These all have 2 GMAC ports, both of which are attached to the same internal 1000MBit switch. Currently we only support GMAC1 as the sole CPU port. MT7621 is very similar to MT7620 with only a few registers having different offsets. MT7621 is the first SoC to have the new QDMA engine builtin. The older PDMA engine is also present. unfortunatley, to get the best performance we need to run RX on PDMA and TX on QDMA. This SoC is also the first to have TX vlan offloading and TSO6 support. NeilBrown: the driver didn't work when I tested, so I changed it to match known-working code as much as possible. This included converting to the PDMA engine for TX. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Michael Lee <igvtee@gmail.com> Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.