/*
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* Copyright (c) 2016, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/netdevice.h>
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/vport.h>
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#include "mlx5_core.h"
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#include "eswitch.h"
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#include "lag.h"
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#include "lag_mp.h"
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/* General purpose, use for short periods of time.
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* Beware of lock dependencies (preferably, no locks should be acquired
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* under it).
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*/
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static DEFINE_SPINLOCK(lag_lock);
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static int mlx5_cmd_create_lag(struct mlx5_core_dev *dev, u8 remap_port1,
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u8 remap_port2)
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{
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u32 in[MLX5_ST_SZ_DW(create_lag_in)] = {};
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void *lag_ctx = MLX5_ADDR_OF(create_lag_in, in, ctx);
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MLX5_SET(create_lag_in, in, opcode, MLX5_CMD_OP_CREATE_LAG);
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MLX5_SET(lagc, lag_ctx, tx_remap_affinity_1, remap_port1);
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MLX5_SET(lagc, lag_ctx, tx_remap_affinity_2, remap_port2);
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return mlx5_cmd_exec_in(dev, create_lag, in);
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}
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static int mlx5_cmd_modify_lag(struct mlx5_core_dev *dev, u8 remap_port1,
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u8 remap_port2)
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{
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u32 in[MLX5_ST_SZ_DW(modify_lag_in)] = {};
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void *lag_ctx = MLX5_ADDR_OF(modify_lag_in, in, ctx);
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MLX5_SET(modify_lag_in, in, opcode, MLX5_CMD_OP_MODIFY_LAG);
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MLX5_SET(modify_lag_in, in, field_select, 0x1);
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MLX5_SET(lagc, lag_ctx, tx_remap_affinity_1, remap_port1);
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MLX5_SET(lagc, lag_ctx, tx_remap_affinity_2, remap_port2);
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return mlx5_cmd_exec_in(dev, modify_lag, in);
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}
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int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev)
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{
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u32 in[MLX5_ST_SZ_DW(create_vport_lag_in)] = {};
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MLX5_SET(create_vport_lag_in, in, opcode, MLX5_CMD_OP_CREATE_VPORT_LAG);
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return mlx5_cmd_exec_in(dev, create_vport_lag, in);
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}
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EXPORT_SYMBOL(mlx5_cmd_create_vport_lag);
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int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev)
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{
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u32 in[MLX5_ST_SZ_DW(destroy_vport_lag_in)] = {};
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MLX5_SET(destroy_vport_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_VPORT_LAG);
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return mlx5_cmd_exec_in(dev, destroy_vport_lag, in);
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}
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EXPORT_SYMBOL(mlx5_cmd_destroy_vport_lag);
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int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
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struct net_device *ndev)
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{
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int i;
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for (i = 0; i < MLX5_MAX_PORTS; i++)
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if (ldev->pf[i].netdev == ndev)
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return i;
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return -ENOENT;
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}
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static bool __mlx5_lag_is_roce(struct mlx5_lag *ldev)
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{
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return !!(ldev->flags & MLX5_LAG_FLAG_ROCE);
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}
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static bool __mlx5_lag_is_sriov(struct mlx5_lag *ldev)
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{
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return !!(ldev->flags & MLX5_LAG_FLAG_SRIOV);
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}
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static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
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u8 *port1, u8 *port2)
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{
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bool p1en;
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bool p2en;
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p1en = tracker->netdev_state[MLX5_LAG_P1].tx_enabled &&
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tracker->netdev_state[MLX5_LAG_P1].link_up;
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p2en = tracker->netdev_state[MLX5_LAG_P2].tx_enabled &&
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tracker->netdev_state[MLX5_LAG_P2].link_up;
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*port1 = 1;
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*port2 = 2;
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if ((!p1en && !p2en) || (p1en && p2en))
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return;
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if (p1en)
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*port2 = 1;
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else
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*port1 = 2;
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}
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void mlx5_modify_lag(struct mlx5_lag *ldev,
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struct lag_tracker *tracker)
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{
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struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
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u8 v2p_port1, v2p_port2;
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int err;
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mlx5_infer_tx_affinity_mapping(tracker, &v2p_port1,
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&v2p_port2);
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if (v2p_port1 != ldev->v2p_map[MLX5_LAG_P1] ||
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v2p_port2 != ldev->v2p_map[MLX5_LAG_P2]) {
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ldev->v2p_map[MLX5_LAG_P1] = v2p_port1;
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ldev->v2p_map[MLX5_LAG_P2] = v2p_port2;
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mlx5_core_info(dev0, "modify lag map port 1:%d port 2:%d",
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ldev->v2p_map[MLX5_LAG_P1],
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ldev->v2p_map[MLX5_LAG_P2]);
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err = mlx5_cmd_modify_lag(dev0, v2p_port1, v2p_port2);
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if (err)
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mlx5_core_err(dev0,
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"Failed to modify LAG (%d)\n",
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err);
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}
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}
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static int mlx5_create_lag(struct mlx5_lag *ldev,
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struct lag_tracker *tracker)
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{
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struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
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int err;
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mlx5_infer_tx_affinity_mapping(tracker, &ldev->v2p_map[MLX5_LAG_P1],
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&ldev->v2p_map[MLX5_LAG_P2]);
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mlx5_core_info(dev0, "lag map port 1:%d port 2:%d",
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ldev->v2p_map[MLX5_LAG_P1], ldev->v2p_map[MLX5_LAG_P2]);
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err = mlx5_cmd_create_lag(dev0, ldev->v2p_map[MLX5_LAG_P1],
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ldev->v2p_map[MLX5_LAG_P2]);
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if (err)
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mlx5_core_err(dev0,
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"Failed to create LAG (%d)\n",
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err);
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return err;
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}
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int mlx5_activate_lag(struct mlx5_lag *ldev,
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struct lag_tracker *tracker,
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u8 flags)
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{
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bool roce_lag = !!(flags & MLX5_LAG_FLAG_ROCE);
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struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
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int err;
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err = mlx5_create_lag(ldev, tracker);
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if (err) {
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if (roce_lag) {
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mlx5_core_err(dev0,
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"Failed to activate RoCE LAG\n");
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} else {
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mlx5_core_err(dev0,
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"Failed to activate VF LAG\n"
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"Make sure all VFs are unbound prior to VF LAG activation or deactivation\n");
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}
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return err;
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}
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ldev->flags |= flags;
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return 0;
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}
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static int mlx5_deactivate_lag(struct mlx5_lag *ldev)
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{
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struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
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u32 in[MLX5_ST_SZ_DW(destroy_lag_in)] = {};
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bool roce_lag = __mlx5_lag_is_roce(ldev);
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int err;
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ldev->flags &= ~MLX5_LAG_MODE_FLAGS;
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MLX5_SET(destroy_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_LAG);
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err = mlx5_cmd_exec_in(dev0, destroy_lag, in);
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if (err) {
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if (roce_lag) {
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mlx5_core_err(dev0,
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"Failed to deactivate RoCE LAG; driver restart required\n");
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} else {
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mlx5_core_err(dev0,
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"Failed to deactivate VF LAG; driver restart required\n"
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"Make sure all VFs are unbound prior to VF LAG activation or deactivation\n");
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}
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}
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return err;
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}
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static bool mlx5_lag_check_prereq(struct mlx5_lag *ldev)
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{
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if (!ldev->pf[MLX5_LAG_P1].dev || !ldev->pf[MLX5_LAG_P2].dev)
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return false;
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#ifdef CONFIG_MLX5_ESWITCH
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return mlx5_esw_lag_prereq(ldev->pf[MLX5_LAG_P1].dev,
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ldev->pf[MLX5_LAG_P2].dev);
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#else
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return (!mlx5_sriov_is_enabled(ldev->pf[MLX5_LAG_P1].dev) &&
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!mlx5_sriov_is_enabled(ldev->pf[MLX5_LAG_P2].dev));
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#endif
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}
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static void mlx5_lag_add_ib_devices(struct mlx5_lag *ldev)
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{
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int i;
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for (i = 0; i < MLX5_MAX_PORTS; i++)
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if (ldev->pf[i].dev)
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mlx5_add_dev_by_protocol(ldev->pf[i].dev,
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MLX5_INTERFACE_PROTOCOL_IB);
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}
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static void mlx5_lag_remove_ib_devices(struct mlx5_lag *ldev)
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{
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int i;
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for (i = 0; i < MLX5_MAX_PORTS; i++)
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if (ldev->pf[i].dev)
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mlx5_remove_dev_by_protocol(ldev->pf[i].dev,
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MLX5_INTERFACE_PROTOCOL_IB);
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}
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static void mlx5_do_bond(struct mlx5_lag *ldev)
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{
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struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
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struct mlx5_core_dev *dev1 = ldev->pf[MLX5_LAG_P2].dev;
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struct lag_tracker tracker = { };
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bool do_bond, roce_lag;
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int err;
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if (!mlx5_lag_is_ready(ldev))
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return;
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spin_lock(&lag_lock);
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tracker = ldev->tracker;
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spin_unlock(&lag_lock);
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do_bond = tracker.is_bonded && mlx5_lag_check_prereq(ldev);
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if (do_bond && !__mlx5_lag_is_active(ldev)) {
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roce_lag = !mlx5_sriov_is_enabled(dev0) &&
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!mlx5_sriov_is_enabled(dev1);
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#ifdef CONFIG_MLX5_ESWITCH
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roce_lag &= dev0->priv.eswitch->mode == MLX5_ESWITCH_NONE &&
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dev1->priv.eswitch->mode == MLX5_ESWITCH_NONE;
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#endif
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if (roce_lag)
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mlx5_lag_remove_ib_devices(ldev);
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err = mlx5_activate_lag(ldev, &tracker,
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roce_lag ? MLX5_LAG_FLAG_ROCE :
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MLX5_LAG_FLAG_SRIOV);
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if (err) {
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if (roce_lag)
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mlx5_lag_add_ib_devices(ldev);
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return;
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}
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if (roce_lag) {
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mlx5_add_dev_by_protocol(dev0, MLX5_INTERFACE_PROTOCOL_IB);
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mlx5_nic_vport_enable_roce(dev1);
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}
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} else if (do_bond && __mlx5_lag_is_active(ldev)) {
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mlx5_modify_lag(ldev, &tracker);
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} else if (!do_bond && __mlx5_lag_is_active(ldev)) {
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roce_lag = __mlx5_lag_is_roce(ldev);
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if (roce_lag) {
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mlx5_remove_dev_by_protocol(dev0, MLX5_INTERFACE_PROTOCOL_IB);
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mlx5_nic_vport_disable_roce(dev1);
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}
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err = mlx5_deactivate_lag(ldev);
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if (err)
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return;
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if (roce_lag)
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mlx5_lag_add_ib_devices(ldev);
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}
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}
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static void mlx5_queue_bond_work(struct mlx5_lag *ldev, unsigned long delay)
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{
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queue_delayed_work(ldev->wq, &ldev->bond_work, delay);
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}
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static void mlx5_do_bond_work(struct work_struct *work)
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{
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struct delayed_work *delayed_work = to_delayed_work(work);
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struct mlx5_lag *ldev = container_of(delayed_work, struct mlx5_lag,
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bond_work);
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int status;
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status = mlx5_dev_list_trylock();
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if (!status) {
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/* 1 sec delay. */
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mlx5_queue_bond_work(ldev, HZ);
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return;
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}
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mlx5_do_bond(ldev);
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mlx5_dev_list_unlock();
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}
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static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
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struct lag_tracker *tracker,
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struct net_device *ndev,
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struct netdev_notifier_changeupper_info *info)
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{
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struct net_device *upper = info->upper_dev, *ndev_tmp;
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struct netdev_lag_upper_info *lag_upper_info = NULL;
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bool is_bonded, is_in_lag, mode_supported;
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int bond_status = 0;
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int num_slaves = 0;
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int changed = 0;
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int idx;
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if (!netif_is_lag_master(upper))
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return 0;
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if (info->linking)
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lag_upper_info = info->upper_info;
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/* The event may still be of interest if the slave does not belong to
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* us, but is enslaved to a master which has one or more of our netdevs
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* as slaves (e.g., if a new slave is added to a master that bonds two
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* of our netdevs, we should unbond).
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*/
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rcu_read_lock();
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for_each_netdev_in_bond_rcu(upper, ndev_tmp) {
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idx = mlx5_lag_dev_get_netdev_idx(ldev, ndev_tmp);
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if (idx >= 0)
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bond_status |= (1 << idx);
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num_slaves++;
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}
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rcu_read_unlock();
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/* None of this lagdev's netdevs are slaves of this master. */
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if (!(bond_status & 0x3))
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return 0;
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if (lag_upper_info)
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tracker->tx_type = lag_upper_info->tx_type;
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/* Determine bonding status:
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* A device is considered bonded if both its physical ports are slaves
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* of the same lag master, and only them.
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*/
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is_in_lag = num_slaves == MLX5_MAX_PORTS && bond_status == 0x3;
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/* Lag mode must be activebackup or hash. */
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mode_supported = tracker->tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP ||
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tracker->tx_type == NETDEV_LAG_TX_TYPE_HASH;
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is_bonded = is_in_lag && mode_supported;
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if (tracker->is_bonded != is_bonded) {
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tracker->is_bonded = is_bonded;
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changed = 1;
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}
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if (!is_in_lag)
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return changed;
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if (!mlx5_lag_is_ready(ldev))
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NL_SET_ERR_MSG_MOD(info->info.extack,
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"Can't activate LAG offload, PF is configured with more than 64 VFs");
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else if (!mode_supported)
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NL_SET_ERR_MSG_MOD(info->info.extack,
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"Can't activate LAG offload, TX type isn't supported");
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return changed;
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}
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static int mlx5_handle_changelowerstate_event(struct mlx5_lag *ldev,
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struct lag_tracker *tracker,
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struct net_device *ndev,
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struct netdev_notifier_changelowerstate_info *info)
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{
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struct netdev_lag_lower_state_info *lag_lower_info;
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int idx;
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if (!netif_is_lag_port(ndev))
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return 0;
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idx = mlx5_lag_dev_get_netdev_idx(ldev, ndev);
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if (idx < 0)
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return 0;
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/* This information is used to determine virtual to physical
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* port mapping.
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*/
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lag_lower_info = info->lower_state_info;
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if (!lag_lower_info)
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return 0;
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tracker->netdev_state[idx] = *lag_lower_info;
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return 1;
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}
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static int mlx5_lag_netdev_event(struct notifier_block *this,
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unsigned long event, void *ptr)
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{
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struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
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struct lag_tracker tracker;
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struct mlx5_lag *ldev;
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int changed = 0;
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if ((event != NETDEV_CHANGEUPPER) && (event != NETDEV_CHANGELOWERSTATE))
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return NOTIFY_DONE;
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ldev = container_of(this, struct mlx5_lag, nb);
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tracker = ldev->tracker;
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switch (event) {
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case NETDEV_CHANGEUPPER:
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changed = mlx5_handle_changeupper_event(ldev, &tracker, ndev,
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ptr);
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break;
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case NETDEV_CHANGELOWERSTATE:
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changed = mlx5_handle_changelowerstate_event(ldev, &tracker,
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ndev, ptr);
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break;
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}
|
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spin_lock(&lag_lock);
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ldev->tracker = tracker;
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spin_unlock(&lag_lock);
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if (changed)
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mlx5_queue_bond_work(ldev, 0);
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return NOTIFY_DONE;
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}
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static struct mlx5_lag *mlx5_lag_dev_alloc(void)
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{
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struct mlx5_lag *ldev;
|
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ldev = kzalloc(sizeof(*ldev), GFP_KERNEL);
|
if (!ldev)
|
return NULL;
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ldev->wq = create_singlethread_workqueue("mlx5_lag");
|
if (!ldev->wq) {
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kfree(ldev);
|
return NULL;
|
}
|
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INIT_DELAYED_WORK(&ldev->bond_work, mlx5_do_bond_work);
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return ldev;
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}
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static void mlx5_lag_dev_free(struct mlx5_lag *ldev)
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{
|
destroy_workqueue(ldev->wq);
|
kfree(ldev);
|
}
|
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static int mlx5_lag_dev_add_pf(struct mlx5_lag *ldev,
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struct mlx5_core_dev *dev,
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struct net_device *netdev)
|
{
|
unsigned int fn = PCI_FUNC(dev->pdev->devfn);
|
|
if (fn >= MLX5_MAX_PORTS)
|
return -EPERM;
|
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spin_lock(&lag_lock);
|
ldev->pf[fn].dev = dev;
|
ldev->pf[fn].netdev = netdev;
|
ldev->tracker.netdev_state[fn].link_up = 0;
|
ldev->tracker.netdev_state[fn].tx_enabled = 0;
|
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dev->priv.lag = ldev;
|
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spin_unlock(&lag_lock);
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return fn;
|
}
|
|
static void mlx5_lag_dev_remove_pf(struct mlx5_lag *ldev,
|
struct mlx5_core_dev *dev)
|
{
|
int i;
|
|
for (i = 0; i < MLX5_MAX_PORTS; i++)
|
if (ldev->pf[i].dev == dev)
|
break;
|
|
if (i == MLX5_MAX_PORTS)
|
return;
|
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spin_lock(&lag_lock);
|
memset(&ldev->pf[i], 0, sizeof(*ldev->pf));
|
|
dev->priv.lag = NULL;
|
spin_unlock(&lag_lock);
|
}
|
|
/* Must be called with intf_mutex held */
|
void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
|
{
|
struct mlx5_lag *ldev = NULL;
|
struct mlx5_core_dev *tmp_dev;
|
int i, err;
|
|
if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
|
!MLX5_CAP_GEN(dev, lag_master) ||
|
MLX5_CAP_GEN(dev, num_lag_ports) != MLX5_MAX_PORTS)
|
return;
|
|
tmp_dev = mlx5_get_next_phys_dev(dev);
|
if (tmp_dev)
|
ldev = tmp_dev->priv.lag;
|
|
if (!ldev) {
|
ldev = mlx5_lag_dev_alloc();
|
if (!ldev) {
|
mlx5_core_err(dev, "Failed to alloc lag dev\n");
|
return;
|
}
|
}
|
|
if (mlx5_lag_dev_add_pf(ldev, dev, netdev) < 0)
|
return;
|
|
for (i = 0; i < MLX5_MAX_PORTS; i++)
|
if (!ldev->pf[i].dev)
|
break;
|
|
if (i >= MLX5_MAX_PORTS)
|
ldev->flags |= MLX5_LAG_FLAG_READY;
|
|
if (!ldev->nb.notifier_call) {
|
ldev->nb.notifier_call = mlx5_lag_netdev_event;
|
if (register_netdevice_notifier_net(&init_net, &ldev->nb)) {
|
ldev->nb.notifier_call = NULL;
|
mlx5_core_err(dev, "Failed to register LAG netdev notifier\n");
|
}
|
}
|
|
err = mlx5_lag_mp_init(ldev);
|
if (err)
|
mlx5_core_err(dev, "Failed to init multipath lag err=%d\n",
|
err);
|
}
|
|
/* Must be called with intf_mutex held */
|
void mlx5_lag_remove(struct mlx5_core_dev *dev)
|
{
|
struct mlx5_lag *ldev;
|
int i;
|
|
ldev = mlx5_lag_dev_get(dev);
|
if (!ldev)
|
return;
|
|
if (__mlx5_lag_is_active(ldev))
|
mlx5_deactivate_lag(ldev);
|
|
mlx5_lag_dev_remove_pf(ldev, dev);
|
|
ldev->flags &= ~MLX5_LAG_FLAG_READY;
|
|
for (i = 0; i < MLX5_MAX_PORTS; i++)
|
if (ldev->pf[i].dev)
|
break;
|
|
if (i == MLX5_MAX_PORTS) {
|
if (ldev->nb.notifier_call) {
|
unregister_netdevice_notifier_net(&init_net, &ldev->nb);
|
ldev->nb.notifier_call = NULL;
|
}
|
mlx5_lag_mp_cleanup(ldev);
|
cancel_delayed_work_sync(&ldev->bond_work);
|
mlx5_lag_dev_free(ldev);
|
}
|
}
|
|
bool mlx5_lag_is_roce(struct mlx5_core_dev *dev)
|
{
|
struct mlx5_lag *ldev;
|
bool res;
|
|
spin_lock(&lag_lock);
|
ldev = mlx5_lag_dev_get(dev);
|
res = ldev && __mlx5_lag_is_roce(ldev);
|
spin_unlock(&lag_lock);
|
|
return res;
|
}
|
EXPORT_SYMBOL(mlx5_lag_is_roce);
|
|
bool mlx5_lag_is_active(struct mlx5_core_dev *dev)
|
{
|
struct mlx5_lag *ldev;
|
bool res;
|
|
spin_lock(&lag_lock);
|
ldev = mlx5_lag_dev_get(dev);
|
res = ldev && __mlx5_lag_is_active(ldev);
|
spin_unlock(&lag_lock);
|
|
return res;
|
}
|
EXPORT_SYMBOL(mlx5_lag_is_active);
|
|
bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev)
|
{
|
struct mlx5_lag *ldev;
|
bool res;
|
|
spin_lock(&lag_lock);
|
ldev = mlx5_lag_dev_get(dev);
|
res = ldev && __mlx5_lag_is_sriov(ldev);
|
spin_unlock(&lag_lock);
|
|
return res;
|
}
|
EXPORT_SYMBOL(mlx5_lag_is_sriov);
|
|
void mlx5_lag_update(struct mlx5_core_dev *dev)
|
{
|
struct mlx5_lag *ldev;
|
|
mlx5_dev_list_lock();
|
ldev = mlx5_lag_dev_get(dev);
|
if (!ldev)
|
goto unlock;
|
|
mlx5_do_bond(ldev);
|
|
unlock:
|
mlx5_dev_list_unlock();
|
}
|
|
struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev)
|
{
|
struct net_device *ndev = NULL;
|
struct mlx5_lag *ldev;
|
|
spin_lock(&lag_lock);
|
ldev = mlx5_lag_dev_get(dev);
|
|
if (!(ldev && __mlx5_lag_is_roce(ldev)))
|
goto unlock;
|
|
if (ldev->tracker.tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP) {
|
ndev = ldev->tracker.netdev_state[MLX5_LAG_P1].tx_enabled ?
|
ldev->pf[MLX5_LAG_P1].netdev :
|
ldev->pf[MLX5_LAG_P2].netdev;
|
} else {
|
ndev = ldev->pf[MLX5_LAG_P1].netdev;
|
}
|
if (ndev)
|
dev_hold(ndev);
|
|
unlock:
|
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,
|
priv);
|
struct mlx5_lag *ldev;
|
|
if (intf->protocol != MLX5_INTERFACE_PROTOCOL_IB)
|
return true;
|
|
ldev = mlx5_lag_dev_get(dev);
|
if (!ldev || !__mlx5_lag_is_roce(ldev) ||
|
ldev->pf[MLX5_LAG_P1].dev == dev)
|
return true;
|
|
/* If bonded, we do not add an IB device for PF1. */
|
return false;
|
}
|
|
int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
|
u64 *values,
|
int num_counters,
|
size_t *offsets)
|
{
|
int outlen = MLX5_ST_SZ_BYTES(query_cong_statistics_out);
|
struct mlx5_core_dev *mdev[MLX5_MAX_PORTS];
|
struct mlx5_lag *ldev;
|
int num_ports;
|
int ret, i, j;
|
void *out;
|
|
out = kvzalloc(outlen, GFP_KERNEL);
|
if (!out)
|
return -ENOMEM;
|
|
memset(values, 0, sizeof(*values) * num_counters);
|
|
spin_lock(&lag_lock);
|
ldev = mlx5_lag_dev_get(dev);
|
if (ldev && __mlx5_lag_is_roce(ldev)) {
|
num_ports = MLX5_MAX_PORTS;
|
mdev[MLX5_LAG_P1] = ldev->pf[MLX5_LAG_P1].dev;
|
mdev[MLX5_LAG_P2] = ldev->pf[MLX5_LAG_P2].dev;
|
} else {
|
num_ports = 1;
|
mdev[MLX5_LAG_P1] = dev;
|
}
|
spin_unlock(&lag_lock);
|
|
for (i = 0; i < num_ports; ++i) {
|
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 free;
|
|
for (j = 0; j < num_counters; ++j)
|
values[j] += be64_to_cpup((__be64 *)(out + offsets[j]));
|
}
|
|
free:
|
kvfree(out);
|
return ret;
|
}
|
EXPORT_SYMBOL(mlx5_lag_query_cong_counters);
|
