]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
net/mlx5e: IPoIB, Modify add/remove underlay QPN flows
authorAlex Vesker <valex@mellanox.com>
Thu, 6 Jul 2017 12:40:32 +0000 (15:40 +0300)
committerSaeed Mahameed <saeedm@mellanox.com>
Thu, 27 Jul 2017 13:40:16 +0000 (16:40 +0300)
commit58569ef8f619761548e7d198f59e8ebe3af91d04
tree50b68373421f82e9d12acacd5b8b80d458e37bb1
parent219c81f7d1d5a89656cb3b53d3b4e11e93608d80
net/mlx5e: IPoIB, Modify add/remove underlay QPN flows

On interface remove, the clean-up was done incorrectly causing
an error in the log:
"SET_FLOW_TABLE_ROOT(0x92f) op_mod(0x0) failed...syndrome (0x7e9f14)"

This was caused by the following flow:
-ndo_uninit:
 Move QP state to RST (this disconnects the QP from FT),
 the QP cannot be attached to any FT unless it is in RTS.

-mlx5_rdma_netdev_free:
 cleanup_rx: Destroy FT
 cleanup_tx: Destroy QP and remove QPN from FT

This caused a problem when destroying current FT we tried to
re-attach the QP to the next FT which is not needed.

The correct flow is:
-mlx5_rdma_netdev_free:
cleanup_rx: remove QPN from FT & Destroy FT
cleanup_tx: Destroy QP

Fixes: 508541146af1 ("net/mlx5: Use underlay QPN from the root name space")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c