It is recommended to read CSTS when there is a timeout.
If CSTS.CFS (Controller Fatal Status) is set, we should
reset the controller.
But if an admin command on a fabrics controller times
out, reading CSTS submits another fabrics command that
could also timeout. Even worse, we are recursively
polling the admin queue for completions in this case.
Fixes issue #1716.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I23d31f6302375c52eba6f4370748d622fbd25ca7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5513
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
6d9d3f87e3