renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-20 11:13:58 +08:00
Code

net/mlx5: Add multipath mode

Browse Source 
In order to offload ecmp-on-host scheme where next-hop routes are used,
we will make use of HW LAG. Add accessor function to let upper layers
in the driver to realize if the lag acts in multi-path mode.

Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Roi Dayan 2019-02-21 18:24:48 +02:00 committed by Saeed Mahameed
parent e6ee5e7166
commit 724b509ca0
4 changed files with 28 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/mellanox/mlx5/core/Makefile
View File

@ -30,7 +30,7 @@ mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
mlx5_core-$(CONFIG_MLX5_EN_ARFS) += en_arfs.o
mlx5_core-$(CONFIG_MLX5_EN_RXNFC) += en_fs_ethtool.o
mlx5_core-$(CONFIG_MLX5_CORE_EN_DCB) += en_dcbnl.o en/port_buffer.o
mlx5_core-$(CONFIG_MLX5_ESWITCH) += en_rep.o en_tc.o en/tc_tun.o lib/port_tun.o
mlx5_core-$(CONFIG_MLX5_ESWITCH) += en_rep.o en_tc.o en/tc_tun.o lib/port_tun.o lag_mp.o
#
# Core extra

4
drivers/net/ethernet/mellanox/mlx5/core/lag.h
View File

@ -9,9 +9,11 @@
enum {
MLX5_LAG_FLAG_ROCE = 1 << 0,
MLX5_LAG_FLAG_SRIOV = 1 << 1,
MLX5_LAG_FLAG_MULTIPATH = 1 << 2,
};
#define MLX5_LAG_MODE_FLAGS (MLX5_LAG_FLAG_ROCE | MLX5_LAG_FLAG_SRIOV)
#define MLX5_LAG_MODE_FLAGS (MLX5_LAG_FLAG_ROCE | MLX5_LAG_FLAG_SRIOV |\
MLX5_LAG_FLAG_MULTIPATH)
struct lag_func {
struct mlx5_core_dev *dev;

23
drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c Normal file
View File

@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2019 Mellanox Technologies. */
#include <linux/netdevice.h>
#include "lag.h"
#include "mlx5_core.h"
#include "eswitch.h"
static bool __mlx5_lag_is_multipath(struct mlx5_lag *ldev)
{
return !!(ldev->flags & MLX5_LAG_FLAG_MULTIPATH);
}
bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev)
{
struct mlx5_lag *ldev;
bool res;
ldev = mlx5_lag_dev_get(dev);
res = ldev && __mlx5_lag_is_multipath(ldev);
return res;
}

1
include/linux/mlx5/driver.h
View File

@ -1041,6 +1041,7 @@ int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev);
bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,