net/mlx5e: Add refcount to VXLAN structure

Browse source

[ Upstream commit 23f4cc2cd9 ]

A refcount mechanism must be implemented in order to prevent unwanted
scenarios such as:
- Open an IPv4 VXLAN interface
- Open an IPv6 VXLAN interface (different socket)
- Remove one of the interfaces

With current implementation, the UDP port will be removed from our VXLAN
database and turn off the offloads for the other interface, which is
still active.
The reference count mechanism will only allow UDP port removals once all
consumers are gone.

Fixes: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Gal Pressman 2017-12-03 13:58:50 +02:00 • committed by Greg Kroah-Hartman

parent 597181622e

commit c4d0e614c1

2 changed files with 28 additions and 23 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

54

drivers/net/ethernet/mellanox/mlx5/core/vxlan.c

View file

1

drivers/net/ethernet/mellanox/mlx5/core/vxlan.h

View file