RDMA/hns: Recover 1bit-ECC error of RAM on chip

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Since ECC memory maintains a memory system immune to single-bit errors,
add support for correcting the 1bit-ECC error, which prevents a 1bit-ECC
error become an uncorrected type error. When a 1bit-ECC error happens in
the internal ram of the ROCE engine, such as the QPC table, as a 1bit-ECC
error caused by reading, the ROCE engine only corrects those 1bit ECC
errors by writing.

Link: https://lore.kernel.org/r/20220714134353.16700-6-liangwenpeng@huawei.com
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Haoyue Xu 2022-07-14 21:43:53 +08:00 • committed by Leon Romanovsky

parent 75e4e716f7

commit 2de949abd6

3 changed files with 193 additions and 2 deletions

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1

drivers/infiniband/hw/hns/hns_roce_device.h

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182

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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12

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

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