linux/drivers/infiniband
Andrew Boyer 07bf9627d5 IB/rxe: Wait for tasklets to finish before tearing down QP
The system may crash when a malformed request is received and
the error is detected by the responder.

NodeA: $ ibv_rc_pingpong -g 0 -d rxe0 -i 1 -n 1 -s 50000
NodeB: $ ibv_rc_pingpong -g 0 -d rxe0 -i 1 -n 1 -s 1024 <NodeA_ip>

The responder generates a receive error on node B since the incoming
SEND is oversized. If the client tears down the QP before the responder
or the completer finish running, a page fault may occur.

The fix makes the destroy operation spin until the tasks complete, which
appears to be original intent of the design.

Signed-off-by: Andrew Boyer <andrew.boyer@dell.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12 16:31:45 -05:00
..
core mm: replace get_user_pages_remote() write/force parameters with gup_flags 2016-10-19 08:12:02 -07:00
hw net/mlx5: Add multi dest support 2016-10-30 15:43:17 +02:00
sw IB/rxe: Wait for tasklets to finish before tearing down QP 2016-12-12 16:31:45 -05:00
ulp Merge of primary rdma-core code for 4.9 2016-10-09 17:04:33 -07:00
Kconfig qedr: Add RoCE driver framework 2016-10-14 15:00:10 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00