OpenCloudOS-Kernel/drivers/infiniband
Tadeusz Struk ebc9ca43e1 IB/core: Allow QP state transition from reset to error
Playing with IP-O-IB interface can trigger a warning message:
"ib0: Failed to modify QP to ERROR state" to be logged.
This happens when the QP is in IB_QPS_RESET state and the stack
is trying to transition it to IB_QPS_ERR state in ipoib_ib_dev_stop().

According to the IB spec, Table 91 - "QP State Transition Properties"
it looks like the transition from reset to error is valid:

Transition: Any State to Error
Required Attributes: None
Optional Attributes: None allowed
Actions: Queue processing is stopped. Work Requests pending or in
process are completed in error, when possible.

This patch allows the transition and quiets the message.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-17 21:21:30 -04:00
..
core IB/core: Allow QP state transition from reset to error 2017-07-17 21:21:30 -04:00
hw IB/hns: Fix for checkpatch.pl comment style warnings 2017-07-17 21:21:29 -04:00
sw IB/rxe: Set dma_mask and coherent_dma_mask 2017-07-17 21:21:27 -04:00
ulp IB/ipoib: Let lower driver handle get_stats64 call 2017-07-17 21:21:26 -04:00
Kconfig IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev 2017-04-20 12:01:38 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00