Michael J. Ruhl d623500b3c IB/hfi1: Fix context recovery when PBC has an UnsupportedVL ... If a packet stream uses an UnsupportedVL (virtual lane), the send engine will not send the packet, and it will not indicate that an error has occurred. This will cause the packet stream to block. HFI has 8 virtual lanes available for packet streams. Each lane can be enabled or disabled using the UnsupportedVL mask. If a lane is disabled, adding a packet to the send context must be disallowed. The current mask for determining unsupported VLs defaults to 0 (allow all). This is incorrect. Only the VLs that are defined should be allowed. Determine which VLs are disabled (mtu == 0), and set the appropriate unsupported bit in the mask. The correct mask will allow the send engine to error on the invalid VL, and error recovery will work correctly. Cc: <stable@vger.kernel.org> # 4.9.x+ Fixes: 7724105686 ("IB/hfi1: add driver files") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Lukasz Odzioba <lukasz.odzioba@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>		2018-09-20 19:24:51 -06:00
..
core	RDMA/uverbs: Fix validity check for modify QP	2018-09-20 16:47:30 -06:00
hw	IB/hfi1: Fix context recovery when PBC has an UnsupportedVL	2018-09-20 19:24:51 -06:00
sw	Linux 4.18	2018-08-16 13:12:00 -06:00
ulp	IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop	2018-09-19 15:28:24 -06:00
Kconfig	IB/ucm: fix UCM link error	2018-08-21 16:56:32 -06:00
Makefile	IB/rdmavt: Create module framework and handle driver registration	2016-03-10 20:37:04 -05:00