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net/mlx5e: Retrieve the switchdev id from the firmware only once 

Avoid firmware command execution each time the switchdev HW ID attr get
call is made. We do that by reading the ID (PF NIC MAC) only once at
load time and store it on the representor structure.

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 2016-08-18 21:09:08 +03:00 committed by David S. Miller
parent 1dbd0d373a
commit dbe413e3bb
3 changed files with 8 additions and 3 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -3387,6 +3387,7 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
queue_work(priv->wq, &priv->set_rx_mode_work);
if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
mlx5_query_nic_vport_mac_address(mdev, 0, rep.hw_id);
rep.load = mlx5e_nic_rep_load;
rep.unload = mlx5e_nic_rep_unload;
rep.vport = 0;
@ -3505,16 +3506,20 @@ 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;
u8 mac[ETH_ALEN];
if (!MLX5_CAP_GEN(mdev, vport_group_manager))
return;
mlx5_query_nic_vport_mac_address(mdev, 0, mac);
for (vport = 1; vport < total_vfs; vport++) {
struct mlx5_eswitch_rep rep;
rep.load = mlx5e_vport_rep_load;
rep.unload = mlx5e_vport_rep_unload;
rep.vport = vport;
ether_addr_copy(rep.hw_id, mac);
mlx5_eswitch_register_vport_rep(esw, &rep);
}
}

5
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
View File

@ -135,17 +135,16 @@ static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
int mlx5e_attr_get(struct net_device *dev, struct switchdev_attr *attr)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5_eswitch_rep *rep = priv->ppriv;
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
u8 mac[ETH_ALEN];
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
mlx5_query_nic_vport_mac_address(priv->mdev, 0, mac);
attr->u.ppid.id_len = ETH_ALEN;
memcpy(&attr->u.ppid.id, &mac, ETH_ALEN);
ether_addr_copy(attr->u.ppid.id, rep->hw_id);
break;
default:
return -EOPNOTSUPP;

1
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -174,6 +174,7 @@ struct mlx5_eswitch_rep {
void *priv_data;
struct list_head vport_sqs_list;
bool valid;
u8 hw_id[ETH_ALEN];
};
struct mlx5_esw_offload {