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| author |   Eric Biggers <ebiggers@google.com> | 2025-02-16 14:55:30 -0800 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2025-03-10 09:29:27 -0700 |
| commit | 511484fa881e8ce32fda63c5c3d3492394dbddda (patch) | |
| tree | 7a8b10bf4afde887ab36d987f160a496c188e47f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | riscv/crc-t10dif: add Zbc optimized CRC-T10DIF function (diff) | |
| download | linux-rng-511484fa881e8ce32fda63c5c3d3492394dbddda.tar.xz linux-rng-511484fa881e8ce32fda63c5c3d3492394dbddda.zip | |
riscv/crc64: add Zbc optimized CRC64 functions
Wire up crc64_be_arch() and crc64_nvme_arch() for 64-bit RISC-V using
crc-clmul-template.h. This greatly improves the performance of these
CRCs on Zbc-capable CPUs in 64-bit kernels.
These optimized CRC64 functions are not yet supported in 32-bit kernels,
since crc-clmul-template.h assumes that the CRC fits in an unsigned
long. That implementation limitation could be addressed, but it would
add a fair bit of complexity, so it has been omitted for now.
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250216225530.306980-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
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