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RDMA/hns: Fix the chip hanging caused by sending mailbox&CMQ during reset

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On hi08 chip, There is a possibility of chip hanging and some errors when
sending mailbox & doorbell during reset.  We can fix it by prohibiting
mailbox and doorbell during reset and reset occurred to ensure that
hardware can work normally.

Fixes: a04ff739f2 ("RDMA/hns: Add command queue support for hip08 RoCE driver")
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Wei Hu (Xavier) 2019-02-03 20:43:14 +08:00 • committed by Jason Gunthorpe
commit 6a04aed6af
4 changed files with 167 additions and 13 deletions
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