crypto: crypto4xx - fix stalls under heavy load

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If the crypto4xx device is continuously loaded by dm-crypt
and ipsec work, it will start to work intermittent after a
few (between 20-30) seconds, hurting throughput and latency.

This patch contains various stability improvements in order
to fix this issue. So far, the hardware has survived more
than a day without suffering any stalls under the continuous
load.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Christian Lamparter 2017-10-04 01:00:13 +02:00 • committed by Herbert Xu

parent 64e1062b23

commit 4b5b79998a

2 changed files with 21 additions and 15 deletions

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33

drivers/crypto/amcc/crypto4xx_core.c

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3

drivers/crypto/amcc/crypto4xx_reg_def.h

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