Daniel Jurgens c8de98d55d net/mlx5: Fix race for multiple RoCE enable ...

[ Upstream commit 734dc065fc ]

There are two potential problems with the existing implementation.

1. Enable and disable can race after the atomic operations.
2. If a command fails the refcount is left in an inconsistent state.

Introduce a lock and perform error checking.

Fixes: a6f7d2aff6 ("net/mlx5: Add support for multiple RoCE enable")
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-12 12:31:09 +02:00

..

cmd.h

net/mlx5_core: Fix Mellanox copyright note

2015-04-02 16:33:42 -04:00

cq.h

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2017-11-15 14:54:53 -08:00

device.h

net/mlx5: Add MLX5_SET16 and MLX5_GET16

2017-11-04 21:24:42 -07:00

doorbell.h

IB/mlx5: Use blue flame register allocator in mlx5_ib

2017-01-09 20:25:08 +02:00

driver.h

net/mlx5: Fix race for multiple RoCE enable

2018-04-12 12:31:09 +02:00

fs.h

net/mlx5: Use underlay QPN from the root name space

2017-05-14 13:33:45 +03:00

mlx5_ifc_fpga.h

net/mlx5: Accel, Add IPSec acceleration interface

2017-06-27 16:36:47 +03:00

mlx5_ifc.h

{net,ib}/mlx5: Don't disable local loopback multicast traffic when needed

2018-01-12 00:52:42 +02:00

port.h

net/mlx5: QPTS and QPDPM register firmware command support

2017-11-04 21:26:21 -07:00

qp.h

net/mlx5e: Add 802.1ad VLAN insertion support

2017-11-09 13:27:35 +09:00

srq.h

net/mlx5: Add XRQ support

2017-08-29 08:30:20 -04:00

transobj.h

IB/mlx5: Support setting Ethernet priority for Raw Packet QPs

2016-01-21 12:01:09 -05:00

vport.h

net/mlx5: Add raw ethernet local loopback firmware command

2017-07-24 10:26:16 -04:00