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net/mlx4: Implement vxlan ndo calls 

Add implementation for the add/del vxlan port ndo calls, using the
CONFIG_DEV firmware command.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2014-03-27 14:02:04 +02:00 committed by David S. Miller
parent d18f141a1a
commit 1b136de120
4 changed files with 91 additions and 5 deletions
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86
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -39,6 +39,7 @@
#include <linux/hash.h>
#include <net/ip.h>
#include <net/busy_poll.h>
#include <net/vxlan.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
@ -1665,7 +1666,7 @@ int mlx4_en_start_port(struct net_device *dev)
}
if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC);
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
if (err) {
en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
err);
@ -1697,6 +1698,8 @@ int mlx4_en_start_port(struct net_device *dev)
mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS)
vxlan_get_rx_port(dev);
priv->port_up = true;
netif_tx_start_all_queues(dev);
netif_device_attach(dev);
@ -2264,6 +2267,81 @@ static int mlx4_en_get_phys_port_id(struct net_device *dev,
return 0;
}
static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
{
int ret;
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
vxlan_add_task);
ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
if (ret)
goto out;
ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
VXLAN_STEER_BY_OUTER_MAC, 1);
out:
if (ret)
en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
}
static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
{
int ret;
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
vxlan_del_task);
ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
VXLAN_STEER_BY_OUTER_MAC, 0);
if (ret)
en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
priv->vxlan_port = 0;
}
static void mlx4_en_add_vxlan_port(struct net_device *dev,
sa_family_t sa_family, __be16 port)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
__be16 current_port;
if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS))
return;
if (sa_family == AF_INET6)
return;
current_port = priv->vxlan_port;
if (current_port && current_port != port) {
en_warn(priv, "vxlan port %d configured, can't add port %d\n",
ntohs(current_port), ntohs(port));
return;
}
priv->vxlan_port = port;
queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
}
static void mlx4_en_del_vxlan_port(struct net_device *dev,
sa_family_t sa_family, __be16 port)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
__be16 current_port;
if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
return;
if (sa_family == AF_INET6)
return;
current_port = priv->vxlan_port;
if (current_port != port) {
en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
return;
}
queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
}
static const struct net_device_ops mlx4_netdev_ops = {
.ndo_open = mlx4_en_open,
.ndo_stop = mlx4_en_close,
@ -2290,6 +2368,8 @@ static const struct net_device_ops mlx4_netdev_ops = {
.ndo_busy_poll = mlx4_en_low_latency_recv,
#endif
.ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
.ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
.ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
};
static const struct net_device_ops mlx4_netdev_ops_master = {
@ -2381,6 +2461,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
#ifdef CONFIG_MLX4_EN_DCB
if (!mlx4_is_slave(priv->mdev->dev)) {
if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
@ -2514,7 +2596,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
}
if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC);
err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
if (err) {
en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
err);

3
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -559,6 +559,8 @@ struct mlx4_en_priv {
struct work_struct linkstate_task;
struct delayed_work stats_task;
struct delayed_work service_task;
struct work_struct vxlan_add_task;
struct work_struct vxlan_del_task;
struct mlx4_en_perf_stats pstats;
struct mlx4_en_pkt_stats pkstats;
struct mlx4_en_port_stats port_stats;
@ -585,6 +587,7 @@ struct mlx4_en_priv {
struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT];
#endif
u64 tunnel_reg_id;
__be16 vxlan_port;
};
enum mlx4_en_wol {

5
drivers/net/ethernet/mellanox/mlx4/port.c
View File

@ -988,7 +988,7 @@ struct mlx4_set_port_vxlan_context {
u8 steering;
};
int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering)
int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering, int enable)
{
int err;
u32 in_mod;
@ -1002,7 +1002,8 @@ int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering)
memset(context, 0, sizeof(*context));
context->modify_flags = VXLAN_ENABLE_MODIFY | VXLAN_STEERING_MODIFY;
context->enable_flags = VXLAN_ENABLE;
if (enable)
context->enable_flags = VXLAN_ENABLE;
context->steering = steering;
in_mod = MLX4_SET_PORT_VXLAN << 8 | port;

2
include/linux/mlx4/device.h
View File

@ -1142,7 +1142,7 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
u8 *pg, u16 *ratelimit);
int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering);
int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering, int enable);
int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx);
int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);