mainline inclusion
  from mainline-5.14
  commit fae21608
  category: bugfix
  bugzilla: https://gitee.com/openeuler/kernel/issues/I5LODY
  CVE: N/A

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

  commit fae21608 upstream.

  The IOC firmware assumes that the host driver is still alive after shutdown
  and continues to post events to host memory (due to faulty expander phy
  links, etc). This leads to 0x2666 (a bus fault occurred during a host-IOC
  memory access).

  Perform an IOC soft reset as part of shutdown to disable event posting.

  Link: https://lore.kernel.org/r/20210705145951.32258-1-sreekanth.reddy@broadcom.comSigned-off-by: NSreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: NFengfei.Xi <xi.fengfei@h3c.com>