diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/devlink.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c index 3261d0dc1104..d7d8a68ef23d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c @@ -7,6 +7,8 @@ #include "fw_reset.h" #include "fs_core.h" #include "eswitch.h" +#include "sf/dev/dev.h" +#include "sf/sf.h" static int mlx5_devlink_flash_update(struct devlink *devlink, struct devlink_flash_update_params *params, @@ -127,6 +129,22 @@ static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = devlink_priv(devlink); + bool sf_dev_allocated; + + sf_dev_allocated = mlx5_sf_dev_allocated(dev); + if (sf_dev_allocated) { + /* Reload results in deleting SF device which further results in + * unregistering devlink instance while holding devlink_mutext. + * Hence, do not support reload. + */ + NL_SET_ERR_MSG_MOD(extack, "reload is unsupported when SFs are allocated\n"); + return -EOPNOTSUPP; + } + + if (mlx5_lag_is_active(dev)) { + NL_SET_ERR_MSG_MOD(extack, "reload is unsupported in Lag mode\n"); + return -EOPNOTSUPP; + } switch (action) { case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: @@ -168,6 +186,91 @@ static int mlx5_devlink_reload_up(struct devlink *devlink, enum devlink_reload_a return 0; } +static struct mlx5_devlink_trap *mlx5_find_trap_by_id(struct mlx5_core_dev *dev, int trap_id) +{ + struct mlx5_devlink_trap *dl_trap; + + list_for_each_entry(dl_trap, &dev->priv.traps, list) + if (dl_trap->trap.id == trap_id) + return dl_trap; + + return NULL; +} + +static int mlx5_devlink_trap_init(struct devlink *devlink, const struct devlink_trap *trap, + void *trap_ctx) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + struct mlx5_devlink_trap *dl_trap; + + dl_trap = kzalloc(sizeof(*dl_trap), GFP_KERNEL); + if (!dl_trap) + return -ENOMEM; + + dl_trap->trap.id = trap->id; + dl_trap->trap.action = DEVLINK_TRAP_ACTION_DROP; + dl_trap->item = trap_ctx; + + if (mlx5_find_trap_by_id(dev, trap->id)) { + kfree(dl_trap); + mlx5_core_err(dev, "Devlink trap: Trap 0x%x already found", trap->id); + return -EEXIST; + } + + list_add_tail(&dl_trap->list, &dev->priv.traps); + return 0; +} + +static void mlx5_devlink_trap_fini(struct devlink *devlink, const struct devlink_trap *trap, + void *trap_ctx) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + struct mlx5_devlink_trap *dl_trap; + + dl_trap = mlx5_find_trap_by_id(dev, trap->id); + if (!dl_trap) { + mlx5_core_err(dev, "Devlink trap: Missing trap id 0x%x", trap->id); + return; + } + list_del(&dl_trap->list); + kfree(dl_trap); +} + +static int mlx5_devlink_trap_action_set(struct devlink *devlink, + const struct devlink_trap *trap, + enum devlink_trap_action action, + struct netlink_ext_ack *extack) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + enum devlink_trap_action action_orig; + struct mlx5_devlink_trap *dl_trap; + int err = 0; + + dl_trap = mlx5_find_trap_by_id(dev, trap->id); + if (!dl_trap) { + mlx5_core_err(dev, "Devlink trap: Set action on invalid trap id 0x%x", trap->id); + err = -EINVAL; + goto out; + } + + if (action != DEVLINK_TRAP_ACTION_DROP && action != DEVLINK_TRAP_ACTION_TRAP) { + err = -EOPNOTSUPP; + goto out; + } + + if (action == dl_trap->trap.action) + goto out; + + action_orig = dl_trap->trap.action; + dl_trap->trap.action = action; + err = mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_TYPE_TRAP, + &dl_trap->trap); + if (err) + dl_trap->trap.action = action_orig; +out: + return err; +} + static const struct devlink_ops mlx5_devlink_ops = { #ifdef CONFIG_MLX5_ESWITCH .eswitch_mode_set = mlx5_devlink_eswitch_mode_set, @@ -179,6 +282,12 @@ static const struct devlink_ops mlx5_devlink_ops = { .port_function_hw_addr_get = mlx5_devlink_port_function_hw_addr_get, .port_function_hw_addr_set = mlx5_devlink_port_function_hw_addr_set, #endif +#ifdef CONFIG_MLX5_SF_MANAGER + .port_new = mlx5_devlink_sf_port_new, + .port_del = mlx5_devlink_sf_port_del, + .port_fn_state_get = mlx5_devlink_sf_port_fn_state_get, + .port_fn_state_set = mlx5_devlink_sf_port_fn_state_set, +#endif .flash_update = mlx5_devlink_flash_update, .info_get = mlx5_devlink_info_get, .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | @@ -186,8 +295,59 @@ static const struct devlink_ops mlx5_devlink_ops = { .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), .reload_down = mlx5_devlink_reload_down, .reload_up = mlx5_devlink_reload_up, + .trap_init = mlx5_devlink_trap_init, + .trap_fini = mlx5_devlink_trap_fini, + .trap_action_set = mlx5_devlink_trap_action_set, }; +void mlx5_devlink_trap_report(struct mlx5_core_dev *dev, int trap_id, struct sk_buff *skb, + struct devlink_port *dl_port) +{ + struct devlink *devlink = priv_to_devlink(dev); + struct mlx5_devlink_trap *dl_trap; + + dl_trap = mlx5_find_trap_by_id(dev, trap_id); + if (!dl_trap) { + mlx5_core_err(dev, "Devlink trap: Report on invalid trap id 0x%x", trap_id); + return; + } + + if (dl_trap->trap.action != DEVLINK_TRAP_ACTION_TRAP) { + mlx5_core_dbg(dev, "Devlink trap: Trap id %d has action %d", trap_id, + dl_trap->trap.action); + return; + } + devlink_trap_report(devlink, skb, dl_trap->item, dl_port, NULL); +} + +int mlx5_devlink_trap_get_num_active(struct mlx5_core_dev *dev) +{ + struct mlx5_devlink_trap *dl_trap; + int count = 0; + + list_for_each_entry(dl_trap, &dev->priv.traps, list) + if (dl_trap->trap.action == DEVLINK_TRAP_ACTION_TRAP) + count++; + + return count; +} + +int mlx5_devlink_traps_get_action(struct mlx5_core_dev *dev, int trap_id, + enum devlink_trap_action *action) +{ + struct mlx5_devlink_trap *dl_trap; + + dl_trap = mlx5_find_trap_by_id(dev, trap_id); + if (!dl_trap) { + mlx5_core_err(dev, "Devlink trap: Get action on invalid trap id 0x%x", + trap_id); + return -EINVAL; + } + + *action = dl_trap->trap.action; + return 0; +} + struct devlink *mlx5_devlink_alloc(void) { return devlink_alloc(&mlx5_devlink_ops, sizeof(struct mlx5_core_dev)); @@ -273,6 +433,10 @@ static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id, NL_SET_ERR_MSG_MOD(extack, "Device doesn't support RoCE"); return -EOPNOTSUPP; } + if (mlx5_core_is_mp_slave(dev) || mlx5_lag_is_active(dev)) { + NL_SET_ERR_MSG_MOD(extack, "Multi port slave/Lag device can't configure RoCE"); + return -EOPNOTSUPP; + } return 0; } @@ -358,6 +522,49 @@ static void mlx5_devlink_set_params_init_values(struct devlink *devlink) #endif } +#define MLX5_TRAP_DROP(_id, _group_id) \ + DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) + +static const struct devlink_trap mlx5_traps_arr[] = { + MLX5_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS), + MLX5_TRAP_DROP(DMAC_FILTER, L2_DROPS), +}; + +static const struct devlink_trap_group mlx5_trap_groups_arr[] = { + DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0), +}; + +static int mlx5_devlink_traps_register(struct devlink *devlink) +{ + struct mlx5_core_dev *core_dev = devlink_priv(devlink); + int err; + + err = devlink_trap_groups_register(devlink, mlx5_trap_groups_arr, + ARRAY_SIZE(mlx5_trap_groups_arr)); + if (err) + return err; + + err = devlink_traps_register(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr), + &core_dev->priv); + if (err) + goto err_trap_group; + return 0; + +err_trap_group: + devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr, + ARRAY_SIZE(mlx5_trap_groups_arr)); + return err; +} + +static void mlx5_devlink_traps_unregister(struct devlink *devlink) +{ + devlink_traps_unregister(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr)); + devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr, + ARRAY_SIZE(mlx5_trap_groups_arr)); +} + int mlx5_devlink_register(struct devlink *devlink, struct device *dev) { int err; @@ -372,8 +579,16 @@ int mlx5_devlink_register(struct devlink *devlink, struct device *dev) goto params_reg_err; mlx5_devlink_set_params_init_values(devlink); devlink_params_publish(devlink); + + err = mlx5_devlink_traps_register(devlink); + if (err) + goto traps_reg_err; + return 0; +traps_reg_err: + devlink_params_unregister(devlink, mlx5_devlink_params, + ARRAY_SIZE(mlx5_devlink_params)); params_reg_err: devlink_unregister(devlink); return err; @@ -381,6 +596,7 @@ params_reg_err: void mlx5_devlink_unregister(struct devlink *devlink) { + mlx5_devlink_traps_unregister(devlink); devlink_params_unregister(devlink, mlx5_devlink_params, ARRAY_SIZE(mlx5_devlink_params)); devlink_unregister(devlink); |