From: David S. Miller Date: Fri, 25 May 2018 02:19:26 +0000 (-0400) Subject: Merge branch 'ibmvnic-Failover-hardening' X-Git-Tag: v4.19~872^2~149 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=49a473f5b5f54f33e0bd8618158d33f83153c921;p=platform%2Fkernel%2Flinux-rpi.git Merge branch 'ibmvnic-Failover-hardening' Thomas Falcon says: ==================== ibmvnic: Failover hardening Introduce additional transport event hardening to handle events during device reset. In the driver's current state, if a transport event is received during device reset, it can cause the device to become unresponsive as invalid operations are processed as the backing device context changes. After a transport event, the device expects a request to begin the initialization process. If the driver is still processing a previously queued device reset in this state, it is likely to fail as firmware will reject any commands other than the one to initialize the client driver's Command-Response Queue. Instead of failing and becoming dormant, the driver will make one more attempt to recover and continue operation. This is achieved by setting a state flag, which if true will direct the driver to clean up all allocated resources and perform a hard reset in an attempt to bring the driver back to an operational state. ==================== Signed-off-by: David S. Miller --- 49a473f5b5f54f33e0bd8618158d33f83153c921