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44219b6029
This adds support for one possible new protection information format introduced in TP4068 (and integrated in NVMe 2.0): the 64-bit CRC guard and 48-bit reference tag. This version does not support storage tags. Like the CRC16 support already present, this uses a software implementation of CRC64 (so it is naturally pretty slow). But its good enough for verification purposes. This may go nicely hand-in-hand with the support that Keith submitted for the Linux kernel[1]. [1]: https://lore.kernel.org/linux-nvme/20220126165214.GA1782352@dhcp-10-100-145-180.wdc.com/T/ Reviewed-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Naveen Nagar <naveen.n1@samsung.com> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>