dmaengine: idxd: Set defaults for GRPCFG traffic class
Set GRPCFG traffic class to value of 1 for best performance on current generation of accelerators. Also add override option to allow experimentation. Sysfs knobs are disabled for DSA/IAX gen1 devices. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162681373005.1968485.3761065664382799202.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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