diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/lag.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag.c | 118 |
1 files changed, 62 insertions, 56 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index 93052b07c76c..874c70e8cc54 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -42,13 +42,12 @@ * Beware of lock dependencies (preferably, no locks should be acquired * under it). */ -static DEFINE_MUTEX(lag_mutex); +static DEFINE_SPINLOCK(lag_lock); static int mlx5_cmd_create_lag(struct mlx5_core_dev *dev, u8 remap_port1, u8 remap_port2) { - u32 in[MLX5_ST_SZ_DW(create_lag_in)] = {0}; - u32 out[MLX5_ST_SZ_DW(create_lag_out)] = {0}; + u32 in[MLX5_ST_SZ_DW(create_lag_in)] = {}; void *lag_ctx = MLX5_ADDR_OF(create_lag_in, in, ctx); MLX5_SET(create_lag_in, in, opcode, MLX5_CMD_OP_CREATE_LAG); @@ -56,14 +55,13 @@ static int mlx5_cmd_create_lag(struct mlx5_core_dev *dev, u8 remap_port1, MLX5_SET(lagc, lag_ctx, tx_remap_affinity_1, remap_port1); MLX5_SET(lagc, lag_ctx, tx_remap_affinity_2, remap_port2); - return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); + return mlx5_cmd_exec_in(dev, create_lag, in); } static int mlx5_cmd_modify_lag(struct mlx5_core_dev *dev, u8 remap_port1, u8 remap_port2) { - u32 in[MLX5_ST_SZ_DW(modify_lag_in)] = {0}; - u32 out[MLX5_ST_SZ_DW(modify_lag_out)] = {0}; + u32 in[MLX5_ST_SZ_DW(modify_lag_in)] = {}; void *lag_ctx = MLX5_ADDR_OF(modify_lag_in, in, ctx); MLX5_SET(modify_lag_in, in, opcode, MLX5_CMD_OP_MODIFY_LAG); @@ -72,52 +70,29 @@ static int mlx5_cmd_modify_lag(struct mlx5_core_dev *dev, u8 remap_port1, MLX5_SET(lagc, lag_ctx, tx_remap_affinity_1, remap_port1); MLX5_SET(lagc, lag_ctx, tx_remap_affinity_2, remap_port2); - return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); -} - -static int mlx5_cmd_destroy_lag(struct mlx5_core_dev *dev) -{ - u32 in[MLX5_ST_SZ_DW(destroy_lag_in)] = {0}; - u32 out[MLX5_ST_SZ_DW(destroy_lag_out)] = {0}; - - MLX5_SET(destroy_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_LAG); - - return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); + return mlx5_cmd_exec_in(dev, modify_lag, in); } int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev) { - u32 in[MLX5_ST_SZ_DW(create_vport_lag_in)] = {0}; - u32 out[MLX5_ST_SZ_DW(create_vport_lag_out)] = {0}; + u32 in[MLX5_ST_SZ_DW(create_vport_lag_in)] = {}; MLX5_SET(create_vport_lag_in, in, opcode, MLX5_CMD_OP_CREATE_VPORT_LAG); - return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); + return mlx5_cmd_exec_in(dev, create_vport_lag, in); } EXPORT_SYMBOL(mlx5_cmd_create_vport_lag); int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev) { - u32 in[MLX5_ST_SZ_DW(destroy_vport_lag_in)] = {0}; - u32 out[MLX5_ST_SZ_DW(destroy_vport_lag_out)] = {0}; + u32 in[MLX5_ST_SZ_DW(destroy_vport_lag_in)] = {}; MLX5_SET(destroy_vport_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_VPORT_LAG); - return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); + return mlx5_cmd_exec_in(dev, destroy_vport_lag, in); } EXPORT_SYMBOL(mlx5_cmd_destroy_vport_lag); -static int mlx5_cmd_query_cong_counter(struct mlx5_core_dev *dev, - bool reset, void *out, int out_size) -{ - u32 in[MLX5_ST_SZ_DW(query_cong_statistics_in)] = { }; - - MLX5_SET(query_cong_statistics_in, in, opcode, - MLX5_CMD_OP_QUERY_CONG_STATISTICS); - MLX5_SET(query_cong_statistics_in, in, clear, reset); - return mlx5_cmd_exec(dev, in, sizeof(in), out, out_size); -} - int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev, struct net_device *ndev) { @@ -232,12 +207,14 @@ int mlx5_activate_lag(struct mlx5_lag *ldev, static int mlx5_deactivate_lag(struct mlx5_lag *ldev) { struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev; + u32 in[MLX5_ST_SZ_DW(destroy_lag_in)] = {}; bool roce_lag = __mlx5_lag_is_roce(ldev); int err; ldev->flags &= ~MLX5_LAG_MODE_FLAGS; - err = mlx5_cmd_destroy_lag(dev0); + MLX5_SET(destroy_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_LAG); + err = mlx5_cmd_exec_in(dev0, destroy_lag, in); if (err) { if (roce_lag) { mlx5_core_err(dev0, @@ -297,9 +274,9 @@ static void mlx5_do_bond(struct mlx5_lag *ldev) if (!dev0 || !dev1) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); tracker = ldev->tracker; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); do_bond = tracker.is_bonded && mlx5_lag_check_prereq(ldev); @@ -481,9 +458,9 @@ static int mlx5_lag_netdev_event(struct notifier_block *this, break; } - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev->tracker = tracker; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); if (changed) mlx5_queue_bond_work(ldev, 0); @@ -525,7 +502,7 @@ static void mlx5_lag_dev_add_pf(struct mlx5_lag *ldev, if (fn >= MLX5_MAX_PORTS) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev->pf[fn].dev = dev; ldev->pf[fn].netdev = netdev; ldev->tracker.netdev_state[fn].link_up = 0; @@ -533,7 +510,7 @@ static void mlx5_lag_dev_add_pf(struct mlx5_lag *ldev, dev->priv.lag = ldev; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); } static void mlx5_lag_dev_remove_pf(struct mlx5_lag *ldev, @@ -548,11 +525,11 @@ static void mlx5_lag_dev_remove_pf(struct mlx5_lag *ldev, if (i == MLX5_MAX_PORTS) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); memset(&ldev->pf[i], 0, sizeof(*ldev->pf)); dev->priv.lag = NULL; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); } /* Must be called with intf_mutex held */ @@ -630,10 +607,10 @@ bool mlx5_lag_is_roce(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_roce(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -644,10 +621,10 @@ bool mlx5_lag_is_active(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_active(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -658,10 +635,10 @@ bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_sriov(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -687,7 +664,7 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) struct net_device *ndev = NULL; struct mlx5_lag *ldev; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); if (!(ldev && __mlx5_lag_is_roce(ldev))) @@ -704,12 +681,36 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) dev_hold(ndev); unlock: - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return ndev; } EXPORT_SYMBOL(mlx5_lag_get_roce_netdev); +u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev, + struct net_device *slave) +{ + struct mlx5_lag *ldev; + u8 port = 0; + + spin_lock(&lag_lock); + ldev = mlx5_lag_dev_get(dev); + if (!(ldev && __mlx5_lag_is_roce(ldev))) + goto unlock; + + if (ldev->pf[MLX5_LAG_P1].netdev == slave) + port = MLX5_LAG_P1; + else + port = MLX5_LAG_P2; + + port = ldev->v2p_map[port]; + +unlock: + spin_unlock(&lag_lock); + return port; +} +EXPORT_SYMBOL(mlx5_lag_get_slave_port); + bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv) { struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, @@ -746,7 +747,7 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev, memset(values, 0, sizeof(*values) * num_counters); - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); if (ldev && __mlx5_lag_is_roce(ldev)) { num_ports = MLX5_MAX_PORTS; @@ -756,18 +757,23 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev, num_ports = 1; mdev[MLX5_LAG_P1] = dev; } + spin_unlock(&lag_lock); for (i = 0; i < num_ports; ++i) { - ret = mlx5_cmd_query_cong_counter(mdev[i], false, out, outlen); + u32 in[MLX5_ST_SZ_DW(query_cong_statistics_in)] = {}; + + MLX5_SET(query_cong_statistics_in, in, opcode, + MLX5_CMD_OP_QUERY_CONG_STATISTICS); + ret = mlx5_cmd_exec_inout(mdev[i], query_cong_statistics, in, + out); if (ret) - goto unlock; + goto free; for (j = 0; j < num_counters; ++j) values[j] += be64_to_cpup((__be64 *)(out + offsets[j])); } -unlock: - mutex_unlock(&lag_mutex); +free: kvfree(out); return ret; } |