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net/mlx5: Add Representors registration API

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Introduce E-Switch registration/unregister representors functions.

Those functions are called by the mlx5e driver when the PF NIC is
created upon pci probe action regardless of the E-Switch mode (NONE,
LEGACY or OFFLOADS).

Adding basic E-Switch database that will hold the vport represntors
upon creation.

This patch doesn't add any new functionality.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hadar Hen Zion 2016-07-01 14:51:08 +03:00 committed by David S. Miller
parent 6bfd390ba5
commit 127ea380ac
5 changed files with 97 additions and 7 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -571,7 +571,7 @@ enum {
struct mlx5e_profile {
void (*init)(struct mlx5_core_dev *mdev,
struct net_device *netdev,
const struct mlx5e_profile *profile);
const struct mlx5e_profile *profile, void *ppriv);
void (*cleanup)(struct mlx5e_priv *priv);
int (*init_rx)(struct mlx5e_priv *priv);
void (*cleanup_rx)(struct mlx5e_priv *priv);
@ -618,6 +618,7 @@ struct mlx5e_priv {
struct mlx5e_tstamp tstamp;
u16 q_counter;
const struct mlx5e_profile *profile;
void *ppriv;
};
enum mlx5e_link_mode {

60
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -2880,7 +2880,8 @@ void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev,
struct net_device *netdev,
const struct mlx5e_profile *profile)
const struct mlx5e_profile *profile,
void *ppriv)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
u32 link_speed = 0;
@ -2962,6 +2963,7 @@ static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev,
priv->netdev = netdev;
priv->params.num_channels = profile->max_nch(mdev);
priv->profile = profile;
priv->ppriv = ppriv;
#ifdef CONFIG_MLX5_CORE_EN_DCB
mlx5e_ets_init(priv);
@ -3126,18 +3128,25 @@ static int mlx5e_create_umr_mkey(struct mlx5e_priv *priv)
static void mlx5e_nic_init(struct mlx5_core_dev *mdev,
struct net_device *netdev,
const struct mlx5e_profile *profile)
const struct mlx5e_profile *profile,
void *ppriv)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
mlx5e_build_nic_netdev_priv(mdev, netdev, profile);
mlx5e_build_nic_netdev_priv(mdev, netdev, profile, ppriv);
mlx5e_build_nic_netdev(netdev);
mlx5e_vxlan_init(priv);
}
static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5_eswitch *esw = mdev->priv.eswitch;
mlx5e_vxlan_cleanup(priv);
if (MLX5_CAP_GEN(mdev, vport_group_manager))
mlx5_eswitch_unregister_vport_rep(esw, 0);
}
static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
@ -3229,6 +3238,8 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
{
struct net_device *netdev = priv->netdev;
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5_eswitch *esw = mdev->priv.eswitch;
struct mlx5_eswitch_rep rep;
if (mlx5e_vxlan_allowed(mdev)) {
rtnl_lock();
@ -3238,6 +3249,12 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
mlx5e_enable_async_events(priv);
queue_work(priv->wq, &priv->set_rx_mode_work);
if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
rep.vport = 0;
rep.priv_data = priv;
mlx5_eswitch_register_vport_rep(esw, &rep);
}
}
static void mlx5e_nic_disable(struct mlx5e_priv *priv)
@ -3261,7 +3278,7 @@ static const struct mlx5e_profile mlx5e_nic_profile = {
};
static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
const struct mlx5e_profile *profile)
const struct mlx5e_profile *profile, void *ppriv)
{
struct net_device *netdev;
struct mlx5e_priv *priv;
@ -3276,7 +3293,7 @@ static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
return NULL;
}
profile->init(mdev, netdev, profile);
profile->init(mdev, netdev, profile, ppriv);
netif_carrier_off(netdev);
@ -3343,8 +3360,27 @@ static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
return NULL;
}
static void mlx5e_register_vport_rep(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
int total_vfs = MLX5_TOTAL_VPORTS(mdev);
int vport;
if (!MLX5_CAP_GEN(mdev, vport_group_manager))
return;
for (vport = 1; vport < total_vfs; vport++) {
struct mlx5_eswitch_rep rep;
rep.vport = vport;
mlx5_eswitch_register_vport_rep(esw, &rep);
}
}
static void *mlx5e_add(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
void *ppriv = NULL;
void *ret;
if (mlx5e_check_required_hca_cap(mdev))
@ -3353,7 +3389,12 @@ static void *mlx5e_add(struct mlx5_core_dev *mdev)
if (mlx5e_create_mdev_resources(mdev))
return NULL;
ret = mlx5e_create_netdev(mdev, &mlx5e_nic_profile);
mlx5e_register_vport_rep(mdev);
if (MLX5_CAP_GEN(mdev, vport_group_manager))
ppriv = &esw->offloads.vport_reps[0];
ret = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, ppriv);
if (!ret) {
mlx5e_destroy_mdev_resources(mdev);
return NULL;
@ -3394,9 +3435,16 @@ static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, struct mlx5e_priv *
static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
int total_vfs = MLX5_TOTAL_VPORTS(mdev);
struct mlx5e_priv *priv = vpriv;
int vport;
mlx5e_destroy_netdev(mdev, priv);
for (vport = 1; vport < total_vfs; vport++)
mlx5_eswitch_unregister_vport_rep(esw, vport);
mlx5e_destroy_mdev_resources(mdev);
}

10
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -1663,6 +1663,14 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
goto abort;
}
esw->offloads.vport_reps =
kzalloc(total_vports * sizeof(struct mlx5_eswitch_rep),
GFP_KERNEL);
if (!esw->offloads.vport_reps) {
err = -ENOMEM;
goto abort;
}
mutex_init(&esw->state_lock);
for (vport_num = 0; vport_num < total_vports; vport_num++) {
@ -1687,6 +1695,7 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
destroy_workqueue(esw->work_queue);
kfree(esw->l2_table.bitmap);
kfree(esw->vports);
kfree(esw->offloads.vport_reps);
kfree(esw);
return err;
}
@ -1704,6 +1713,7 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
destroy_workqueue(esw->work_queue);
kfree(esw->l2_table.bitmap);
kfree(esw->mc_promisc);
kfree(esw->offloads.vport_reps);
kfree(esw->vports);
kfree(esw);
}

12
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -156,9 +156,17 @@ enum {
SRIOV_OFFLOADS
};
struct mlx5_eswitch_rep {
u16 vport;
void *priv_data;
bool valid;
};
struct mlx5_esw_offload {
struct mlx5_flow_table *ft_offloads;
struct mlx5_flow_group *vport_rx_group;
struct mlx5_eswitch_rep *vport_reps;
};
struct mlx5_eswitch {
@ -208,6 +216,10 @@ mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32 tirn)
int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode);
int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
struct mlx5_eswitch_rep *rep);
void mlx5_eswitch_unregister_vport_rep(struct mlx5_eswitch *esw,
int vport);
#define MLX5_DEBUG_ESWITCH_MASK BIT(3)

19
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -451,3 +451,22 @@ int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
return 0;
}
void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
struct mlx5_eswitch_rep *rep)
{
struct mlx5_esw_offload *offloads = &esw->offloads;
memcpy(&offloads->vport_reps[rep->vport], rep,
sizeof(struct mlx5_eswitch_rep));
offloads->vport_reps[rep->vport].valid = true;
}
void mlx5_eswitch_unregister_vport_rep(struct mlx5_eswitch *esw,
int vport)
{
struct mlx5_esw_offload *offloads = &esw->offloads;
offloads->vport_reps[vport].valid = false;
}