Williams, Dan J wrote: > ioat3.2 adds xor offload support for up to 8 sources. It can also > perform an xor-zero-sum operation to validate whether all given sources > sum to zero, without writing to a destination. Xor descriptors differ > from memcpy in that one operation may require multiple descriptors > depending on the number of sources. When the number of sources exceeds > 5 an extended descriptor is needed. These descriptors need to be > accounted for when updating the DMA_COUNT register. > > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> > --- Signed-off-by: Maciej Sosnowski <maciej.sosnowski@xxxxxxxxx>-- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
