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crypto: hisilicon - support querying the capability register

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Query the capability register status of accelerator devices
(SEC, HPRE and ZIP) through the debugfs interface, for example:
cat cap_regs. The purpose is to improve the robustness and
locability of hardware devices and drivers.

Signed-off-by: Qi Tao <taoqi10@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Qi Tao
2024-10-26 17:46:51 +08:00
committed by Herbert Xu
parent acb0ed8432
commit 2a69297eed
12 changed files with 396 additions and 111 deletions
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7
Documentation/ABI/testing/debugfs-hisi-sec
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@@ -157,3 +157,10 @@ Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of completed but marked error requests
to be received.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/cap_regs
Date: Oct 2024
Contact: linux-crypto@vger.kernel.org
Description: Dump the values of the qm and sec capability bit registers and
support the query of device specifications to facilitate fault locating.
Available for both PF and VF, and take no other effect on SEC.