RDMA/hns: Fix simultaneous reset and resource deregistration

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I87LFL



--------------------------------------------------------------------------

In the current solution, the pseudo WC enables the user-mode
to detect the device error in advance and releases context
resources. As a result, there is a high probability that
hardware reset and context resource release occur at the same
time. During the hardware reset, the MBOX cannot instruct the
hardware to stop accessing the memory, but the corresponding
resources are released during the reset. The hardware is
unaware that the driver has freed resources. Therefore, the
remaining tasks of the hardware access invalid memory, and
the RAS alarm is reported.

If the driver detects above scenario, the driver will not
release the resources.Instead, record it in a linked list.
Wait for the roce driver to uninstall before releasing it.
In this way, the hardware does not access the invalid memory,
and the driver does not cause memory leakage.

Fixes: 306b8c76 ("RDMA/hns: Do not destroy QP resources in the hw resetting phase")
Signed-off-by: wenglianfa <wenglianfa@huawei.com>