net/mlx5: Implement RoCE LAG feature
Available on dual port cards only, this feature keeps
track, using netdev LAG events, of the bonding
and link status of each port's PF netdev.
When both of the card's PF netdevs are enslaved to the
same bond/team master, and only them, LAG state
is active.
During LAG, only one IB device is present for both ports.
In addition to the above, this commit includes FW commands
used for managing the LAG, new facilities for adding and removing
a single device by interface, and port remap functionality according to
bond events.
Please note that this feature is currently used only for mimicking
Ethernet bonding for RoCE - netdevs functionality is not altered,
and their bonding continues to be managed solely by bond/team driver.
Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 0ea78b5..ed983b8 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -477,6 +477,7 @@
};
struct mlx5_eswitch;
+struct mlx5_lag;
struct mlx5_rl_entry {
u32 rate;
@@ -550,6 +551,7 @@
struct mlx5_flow_steering *steering;
struct mlx5_eswitch *eswitch;
struct mlx5_core_sriov sriov;
+ struct mlx5_lag *lag;
unsigned long pci_dev_data;
struct mlx5_fc_stats fc_stats;
struct mlx5_rl_table rl_table;
@@ -942,6 +944,8 @@
void mlx5_unregister_interface(struct mlx5_interface *intf);
int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
+bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
+
struct mlx5_profile {
u64 mask;
u8 log_max_qp;