diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c | 147 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h | 4 |
2 files changed, 110 insertions, 41 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c index 7b2ddc49a04d..f87135ee69ee 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c @@ -17,6 +17,13 @@ struct mlxsw_sp_trap_policer_item { u16 hw_id; }; +struct mlxsw_sp_trap_group_item { + struct devlink_trap_group group; + u16 hw_group_id; + u8 priority; + u8 tc; +}; + /* All driver-specific traps must be documented in * Documentation/networking/devlink/mlxsw.rst */ @@ -188,11 +195,31 @@ mlxsw_sp_trap_policer_items_arr[] = { }, }; -static const struct devlink_trap_group mlxsw_sp_trap_groups_arr[] = { - DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 1), - DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 1), - DEVLINK_TRAP_GROUP_GENERIC(TUNNEL_DROPS, 1), - DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 1), +static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = { + { + .group = DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 1), + .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L2_DISCARDS, + .priority = 0, + .tc = 1, + }, + { + .group = DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 1), + .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS, + .priority = 0, + .tc = 1, + }, + { + .group = DEVLINK_TRAP_GROUP_GENERIC(TUNNEL_DROPS, 1), + .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS, + .priority = 0, + .tc = 1, + }, + { + .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 1), + .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS, + .priority = 0, + .tc = 1, + }, }; static const struct devlink_trap mlxsw_sp_traps_arr[] = { @@ -332,6 +359,20 @@ mlxsw_sp_trap_policer_item_lookup(struct mlxsw_sp *mlxsw_sp, u32 id) return NULL; } +static struct mlxsw_sp_trap_group_item * +mlxsw_sp_trap_group_item_lookup(struct mlxsw_sp *mlxsw_sp, u16 id) +{ + struct mlxsw_sp_trap *trap = mlxsw_sp->trap; + int i; + + for (i = 0; i < trap->groups_count; i++) { + if (trap->group_items_arr[i].group.id == id) + return &trap->group_items_arr[i]; + } + + return NULL; +} + static int mlxsw_sp_trap_cpu_policers_set(struct mlxsw_sp *mlxsw_sp) { char qpcr_pl[MLXSW_REG_QPCR_LEN]; @@ -452,9 +493,57 @@ static void mlxsw_sp_trap_policers_fini(struct mlxsw_sp *mlxsw_sp) mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp); } +static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp) +{ + struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); + const struct mlxsw_sp_trap_group_item *group_item; + struct mlxsw_sp_trap *trap = mlxsw_sp->trap; + int err, i; + + trap->group_items_arr = kmemdup(mlxsw_sp_trap_group_items_arr, + sizeof(mlxsw_sp_trap_group_items_arr), + GFP_KERNEL); + if (!trap->group_items_arr) + return -ENOMEM; + + trap->groups_count = ARRAY_SIZE(mlxsw_sp_trap_group_items_arr); + + for (i = 0; i < trap->groups_count; i++) { + group_item = &trap->group_items_arr[i]; + err = devlink_trap_groups_register(devlink, &group_item->group, + 1); + if (err) + goto err_trap_group_register; + } + + return 0; + +err_trap_group_register: + for (i--; i >= 0; i--) { + group_item = &trap->group_items_arr[i]; + devlink_trap_groups_unregister(devlink, &group_item->group, 1); + } + kfree(trap->group_items_arr); + return err; +} + +static void mlxsw_sp_trap_groups_fini(struct mlxsw_sp *mlxsw_sp) +{ + struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); + struct mlxsw_sp_trap *trap = mlxsw_sp->trap; + int i; + + for (i = trap->groups_count - 1; i >= 0; i--) { + const struct mlxsw_sp_trap_group_item *group_item; + + group_item = &trap->group_items_arr[i]; + devlink_trap_groups_unregister(devlink, &group_item->group, 1); + } + kfree(trap->group_items_arr); +} + int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp) { - size_t groups_count = ARRAY_SIZE(mlxsw_sp_trap_groups_arr); struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); int err; @@ -474,10 +563,9 @@ int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp) if (err) return err; - err = devlink_trap_groups_register(devlink, mlxsw_sp_trap_groups_arr, - groups_count); + err = mlxsw_sp_trap_groups_init(mlxsw_sp); if (err) - goto err_trap_groups_register; + goto err_trap_groups_init; err = devlink_traps_register(devlink, mlxsw_sp_traps_arr, ARRAY_SIZE(mlxsw_sp_traps_arr), mlxsw_sp); @@ -487,22 +575,19 @@ int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp) return 0; err_traps_register: - devlink_trap_groups_unregister(devlink, mlxsw_sp_trap_groups_arr, - groups_count); -err_trap_groups_register: + mlxsw_sp_trap_groups_fini(mlxsw_sp); +err_trap_groups_init: mlxsw_sp_trap_policers_fini(mlxsw_sp); return err; } void mlxsw_sp_devlink_traps_fini(struct mlxsw_sp *mlxsw_sp) { - size_t groups_count = ARRAY_SIZE(mlxsw_sp_trap_groups_arr); struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); devlink_traps_unregister(devlink, mlxsw_sp_traps_arr, ARRAY_SIZE(mlxsw_sp_traps_arr)); - devlink_trap_groups_unregister(devlink, mlxsw_sp_trap_groups_arr, - groups_count); + mlxsw_sp_trap_groups_fini(mlxsw_sp); mlxsw_sp_trap_policers_fini(mlxsw_sp); } @@ -582,33 +667,12 @@ __mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core, { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); u16 hw_policer_id = MLXSW_REG_HTGT_INVALID_POLICER; + const struct mlxsw_sp_trap_group_item *group_item; char htgt_pl[MLXSW_REG_HTGT_LEN]; - u8 priority, tc, group_id; - - switch (group->id) { - case DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS: - group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L2_DISCARDS; - priority = 0; - tc = 1; - break; - case DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS: - group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS; - priority = 0; - tc = 1; - break; - case DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS: - group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS; - priority = 0; - tc = 1; - break; - case DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS: - group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS; - priority = 0; - tc = 1; - break; - default: + + group_item = mlxsw_sp_trap_group_item_lookup(mlxsw_sp, group->id); + if (WARN_ON(!group_item)) return -EINVAL; - } if (policer_id) { struct mlxsw_sp_trap_policer_item *policer_item; @@ -620,7 +684,8 @@ __mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core, hw_policer_id = policer_item->hw_id; } - mlxsw_reg_htgt_pack(htgt_pl, group_id, hw_policer_id, priority, tc); + mlxsw_reg_htgt_pack(htgt_pl, group_item->hw_group_id, hw_policer_id, + group_item->priority, group_item->tc); return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h index 8be8482d82ac..1280f8bc617a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h @@ -10,6 +10,10 @@ struct mlxsw_sp_trap { struct mlxsw_sp_trap_policer_item *policer_items_arr; u64 policers_count; /* Number of registered policers */ + + struct mlxsw_sp_trap_group_item *group_items_arr; + u64 groups_count; /* Number of registered groups */ + u64 max_policers; unsigned long policers_usage[]; /* Usage bitmap */ }; |