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net/mlx5e: Vxlan, reflect 4789 UDP port default addition to software database

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The hardware offloads 4789 UDP port (default VXLAN port) automatically.
Add it to the software database as well in order to reflect the hardware
state appropriately.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Gal Pressman 2018-01-17 11:02:31 +02:00 committed by Saeed Mahameed
parent 1f3ed383fb
commit a082c4f4f0
1 changed files with 27 additions and 13 deletions
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40
drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
View file

@ -36,12 +36,20 @@
#include "mlx5_core.h"
#include "vxlan.h"
static void mlx5e_vxlan_add_port(struct mlx5e_priv *priv, u16 port);
void mlx5e_vxlan_init(struct mlx5e_priv *priv)
{
struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
spin_lock_init(&vxlan_db->lock);
INIT_RADIX_TREE(&vxlan_db->tree, GFP_ATOMIC);
if (mlx5e_vxlan_allowed(priv->mdev))
/* Hardware adds 4789 by default.
* Lockless since we are the only hash table consumers, wq and TX are disabled.
*/
mlx5e_vxlan_add_port(priv, 4789);
}
static int mlx5e_vxlan_core_add_port_cmd(struct mlx5_core_dev *mdev, u16 port)
@ -78,25 +86,20 @@ struct mlx5e_vxlan *mlx5e_vxlan_lookup_port(struct mlx5e_priv *priv, u16 port)
return vxlan;
}
static void mlx5e_vxlan_add_port(struct work_struct *work)
static void mlx5e_vxlan_add_port(struct mlx5e_priv *priv, u16 port)
{
struct mlx5e_vxlan_work *vxlan_work =
container_of(work, struct mlx5e_vxlan_work, work);
struct mlx5e_priv *priv = vxlan_work->priv;
struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
u16 port = vxlan_work->port;
struct mlx5e_vxlan *vxlan;
int err;
mutex_lock(&priv->state_lock);
vxlan = mlx5e_vxlan_lookup_port(priv, port);
if (vxlan) {
atomic_inc(&vxlan->refcount);
goto free_work;
return;
}
if (mlx5e_vxlan_core_add_port_cmd(priv->mdev, port))
goto free_work;
return;
vxlan = kzalloc(sizeof(*vxlan), GFP_KERNEL);
if (!vxlan)
@ -111,18 +114,29 @@ static void mlx5e_vxlan_add_port(struct work_struct *work)
if (err)
goto err_free;
goto free_work;
return;
err_free:
kfree(vxlan);
err_delete_port:
mlx5e_vxlan_core_del_port_cmd(priv->mdev, port);
free_work:
}
static void mlx5e_vxlan_add_work(struct work_struct *work)
{
struct mlx5e_vxlan_work *vxlan_work =
container_of(work, struct mlx5e_vxlan_work, work);
struct mlx5e_priv *priv = vxlan_work->priv;
u16 port = vxlan_work->port;
mutex_lock(&priv->state_lock);
mlx5e_vxlan_add_port(priv, port);
mutex_unlock(&priv->state_lock);
kfree(vxlan_work);
}
static void mlx5e_vxlan_del_port(struct work_struct *work)
static void mlx5e_vxlan_del_work(struct work_struct *work)
{
struct mlx5e_vxlan_work *vxlan_work =
container_of(work, struct mlx5e_vxlan_work, work);
@ -164,9 +178,9 @@ void mlx5e_vxlan_queue_work(struct mlx5e_priv *priv, sa_family_t sa_family,
return;
if (add)
INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_port);
INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_work);
else
INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_port);
INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_work);
vxlan_work->priv = priv;
vxlan_work->port = port;