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a309218ace
Increment the allocation order of the descriptor ring every time we run out of descriptors up to a maximum of allocation order specified by the module parameter 'ioat_max_alloc_order'. After each idle period decrement the allocation order to a minimum order of 'ioat_ring_alloc_order' (i.e. the default ring size, tunable as a module parameter). Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>