LoongArch: Add checksum optimization for 64-bit system

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LoongArch platform is 64-bit system, which supports 8-bytes memory
accessing, but generic checksum functions use 4-byte memory access.
So add 8-bytes memory access optimization for checksum functions on
LoongArch. And the code comes from arm64 system.

When network hw checksum is disabled, iperf performance improves about
10% with this patch.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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This commit is contained in:

Bibo Mao 2023-05-01 17:19:43 +08:00 • committed by Huacai Chen

parent 8941e93ca5

commit 69e3a6aa6b

3 changed files with 208 additions and 1 deletions

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66

arch/loongarch/include/asm/checksum.h

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2

arch/loongarch/lib/Makefile

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141

arch/loongarch/lib/csum.c

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