diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw')
12 files changed, 442 insertions, 166 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c index faa63ea9b83e..1915fa41c622 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c @@ -95,7 +95,7 @@ struct mlxsw_afa_set { */ has_trap:1, has_police:1; - unsigned int ref_count; + refcount_t ref_count; struct mlxsw_afa_set *next; /* Pointer to the next set. */ struct mlxsw_afa_set *prev; /* Pointer to the previous set, * note that set may have multiple @@ -120,7 +120,7 @@ struct mlxsw_afa_fwd_entry { struct rhash_head ht_node; struct mlxsw_afa_fwd_entry_ht_key ht_key; u32 kvdl_index; - unsigned int ref_count; + refcount_t ref_count; }; static const struct rhashtable_params mlxsw_afa_fwd_entry_ht_params = { @@ -282,7 +282,7 @@ static struct mlxsw_afa_set *mlxsw_afa_set_create(bool is_first) /* Need to initialize the set to pass by default */ mlxsw_afa_set_goto_set(set, MLXSW_AFA_SET_GOTO_BINDING_CMD_TERM, 0); set->ht_key.is_first = is_first; - set->ref_count = 1; + refcount_set(&set->ref_count, 1); return set; } @@ -330,7 +330,7 @@ static void mlxsw_afa_set_unshare(struct mlxsw_afa *mlxsw_afa, static void mlxsw_afa_set_put(struct mlxsw_afa *mlxsw_afa, struct mlxsw_afa_set *set) { - if (--set->ref_count) + if (!refcount_dec_and_test(&set->ref_count)) return; if (set->shared) mlxsw_afa_set_unshare(mlxsw_afa, set); @@ -350,7 +350,7 @@ static struct mlxsw_afa_set *mlxsw_afa_set_get(struct mlxsw_afa *mlxsw_afa, set = rhashtable_lookup_fast(&mlxsw_afa->set_ht, &orig_set->ht_key, mlxsw_afa_set_ht_params); if (set) { - set->ref_count++; + refcount_inc(&set->ref_count); mlxsw_afa_set_put(mlxsw_afa, orig_set); } else { set = orig_set; @@ -564,7 +564,7 @@ mlxsw_afa_fwd_entry_create(struct mlxsw_afa *mlxsw_afa, u16 local_port) if (!fwd_entry) return ERR_PTR(-ENOMEM); fwd_entry->ht_key.local_port = local_port; - fwd_entry->ref_count = 1; + refcount_set(&fwd_entry->ref_count, 1); err = rhashtable_insert_fast(&mlxsw_afa->fwd_entry_ht, &fwd_entry->ht_node, @@ -607,7 +607,7 @@ mlxsw_afa_fwd_entry_get(struct mlxsw_afa *mlxsw_afa, u16 local_port) fwd_entry = rhashtable_lookup_fast(&mlxsw_afa->fwd_entry_ht, &ht_key, mlxsw_afa_fwd_entry_ht_params); if (fwd_entry) { - fwd_entry->ref_count++; + refcount_inc(&fwd_entry->ref_count); return fwd_entry; } return mlxsw_afa_fwd_entry_create(mlxsw_afa, local_port); @@ -616,7 +616,7 @@ mlxsw_afa_fwd_entry_get(struct mlxsw_afa *mlxsw_afa, u16 local_port) static void mlxsw_afa_fwd_entry_put(struct mlxsw_afa *mlxsw_afa, struct mlxsw_afa_fwd_entry *fwd_entry) { - if (--fwd_entry->ref_count) + if (!refcount_dec_and_test(&fwd_entry->ref_count)) return; mlxsw_afa_fwd_entry_destroy(mlxsw_afa, fwd_entry); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c index 0d5e6f9b466e..947500f8ed71 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c @@ -5,6 +5,7 @@ #include <linux/slab.h> #include <linux/list.h> #include <linux/errno.h> +#include <linux/refcount.h> #include "item.h" #include "core_acl_flex_keys.h" @@ -107,7 +108,7 @@ EXPORT_SYMBOL(mlxsw_afk_destroy); struct mlxsw_afk_key_info { struct list_head list; - unsigned int ref_count; + refcount_t ref_count; unsigned int blocks_count; int element_to_block[MLXSW_AFK_ELEMENT_MAX]; /* index is element, value * is index inside "blocks" @@ -334,7 +335,7 @@ mlxsw_afk_key_info_create(struct mlxsw_afk *mlxsw_afk, if (err) goto err_picker; list_add(&key_info->list, &mlxsw_afk->key_info_list); - key_info->ref_count = 1; + refcount_set(&key_info->ref_count, 1); return key_info; err_picker: @@ -356,7 +357,7 @@ mlxsw_afk_key_info_get(struct mlxsw_afk *mlxsw_afk, key_info = mlxsw_afk_key_info_find(mlxsw_afk, elusage); if (key_info) { - key_info->ref_count++; + refcount_inc(&key_info->ref_count); return key_info; } return mlxsw_afk_key_info_create(mlxsw_afk, elusage); @@ -365,7 +366,7 @@ EXPORT_SYMBOL(mlxsw_afk_key_info_get); void mlxsw_afk_key_info_put(struct mlxsw_afk_key_info *key_info) { - if (--key_info->ref_count) + if (!refcount_dec_and_test(&key_info->ref_count)) return; mlxsw_afk_key_info_destroy(key_info); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/minimal.c b/drivers/net/ethernet/mellanox/mlxsw/minimal.c index 6b98c3287b49..f0ceb196a6ce 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/minimal.c +++ b/drivers/net/ethernet/mellanox/mlxsw/minimal.c @@ -708,7 +708,6 @@ static const struct i2c_device_id mlxsw_m_i2c_id[] = { static struct i2c_driver mlxsw_m_i2c_driver = { .driver.name = "mlxsw_minimal", - .class = I2C_CLASS_HWMON, .id_table = mlxsw_m_i2c_id, }; diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 5d3413636a62..bb642e9bb6cf 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -176,13 +176,15 @@ MLXSW_ITEM32(tx, hdr, fid, 0x08, 16, 16); MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, - unsigned int counter_index, u64 *packets, - u64 *bytes) + unsigned int counter_index, bool clear, + u64 *packets, u64 *bytes) { + enum mlxsw_reg_mgpc_opcode op = clear ? MLXSW_REG_MGPC_OPCODE_CLEAR : + MLXSW_REG_MGPC_OPCODE_NOP; char mgpc_pl[MLXSW_REG_MGPC_LEN]; int err; - mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP, + mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, op, MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); if (err) @@ -2695,23 +2697,18 @@ static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) static int mlxsw_sp_lag_pgt_init(struct mlxsw_sp *mlxsw_sp) { char sgcr_pl[MLXSW_REG_SGCR_LEN]; - u16 max_lag; int err; if (mlxsw_core_lag_mode(mlxsw_sp->core) != MLXSW_CMD_MBOX_CONFIG_PROFILE_LAG_MODE_SW) return 0; - err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag); - if (err) - return err; - /* In DDD mode, which we by default use, each LAG entry is 8 PGT * entries. The LAG table address needs to be 8-aligned, but that ought * to be the case, since the LAG table is allocated first. */ err = mlxsw_sp_pgt_mid_alloc_range(mlxsw_sp, &mlxsw_sp->lag_pgt_base, - max_lag * 8); + mlxsw_sp->max_lag * 8); if (err) return err; if (WARN_ON_ONCE(mlxsw_sp->lag_pgt_base % 8)) { @@ -2728,33 +2725,31 @@ static int mlxsw_sp_lag_pgt_init(struct mlxsw_sp *mlxsw_sp) err_mid_alloc_range: mlxsw_sp_pgt_mid_free_range(mlxsw_sp, mlxsw_sp->lag_pgt_base, - max_lag * 8); + mlxsw_sp->max_lag * 8); return err; } static void mlxsw_sp_lag_pgt_fini(struct mlxsw_sp *mlxsw_sp) { - u16 max_lag; - int err; - if (mlxsw_core_lag_mode(mlxsw_sp->core) != MLXSW_CMD_MBOX_CONFIG_PROFILE_LAG_MODE_SW) return; - err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag); - if (err) - return; - mlxsw_sp_pgt_mid_free_range(mlxsw_sp, mlxsw_sp->lag_pgt_base, - max_lag * 8); + mlxsw_sp->max_lag * 8); } #define MLXSW_SP_LAG_SEED_INIT 0xcafecafe +struct mlxsw_sp_lag { + struct net_device *dev; + refcount_t ref_count; + u16 lag_id; +}; + static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) { char slcr_pl[MLXSW_REG_SLCR_LEN]; - u16 max_lag; u32 seed; int err; @@ -2773,7 +2768,7 @@ static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) if (err) return err; - err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag); + err = mlxsw_core_max_lag(mlxsw_sp->core, &mlxsw_sp->max_lag); if (err) return err; @@ -2784,7 +2779,7 @@ static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) if (err) return err; - mlxsw_sp->lags = kcalloc(max_lag, sizeof(struct mlxsw_sp_upper), + mlxsw_sp->lags = kcalloc(mlxsw_sp->max_lag, sizeof(struct mlxsw_sp_lag), GFP_KERNEL); if (!mlxsw_sp->lags) { err = -ENOMEM; @@ -4269,19 +4264,48 @@ mlxsw_sp_port_lag_uppers_cleanup(struct mlxsw_sp_port *mlxsw_sp_port, } } -static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) +static struct mlxsw_sp_lag * +mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, struct net_device *lag_dev, + struct netlink_ext_ack *extack) { char sldr_pl[MLXSW_REG_SLDR_LEN]; + struct mlxsw_sp_lag *lag; + u16 lag_id; + int i, err; + + for (i = 0; i < mlxsw_sp->max_lag; i++) { + if (!mlxsw_sp->lags[i].dev) + break; + } + + if (i == mlxsw_sp->max_lag) { + NL_SET_ERR_MSG_MOD(extack, + "Exceeded number of supported LAG devices"); + return ERR_PTR(-EBUSY); + } + lag_id = i; mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); - return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); + if (err) + return ERR_PTR(err); + + lag = &mlxsw_sp->lags[lag_id]; + lag->lag_id = lag_id; + lag->dev = lag_dev; + refcount_set(&lag->ref_count, 1); + + return lag; } -static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) +static int +mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_lag *lag) { char sldr_pl[MLXSW_REG_SLDR_LEN]; - mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); + lag->dev = NULL; + + mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag->lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); } @@ -4329,34 +4353,44 @@ static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); } -static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, - struct net_device *lag_dev, - u16 *p_lag_id) +static struct mlxsw_sp_lag * +mlxsw_sp_lag_find(struct mlxsw_sp *mlxsw_sp, struct net_device *lag_dev) { - struct mlxsw_sp_upper *lag; - int free_lag_id = -1; - u16 max_lag; - int err, i; + int i; - err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag); - if (err) - return err; + for (i = 0; i < mlxsw_sp->max_lag; i++) { + if (!mlxsw_sp->lags[i].dev) + continue; - for (i = 0; i < max_lag; i++) { - lag = mlxsw_sp_lag_get(mlxsw_sp, i); - if (lag->ref_count) { - if (lag->dev == lag_dev) { - *p_lag_id = i; - return 0; - } - } else if (free_lag_id < 0) { - free_lag_id = i; - } + if (mlxsw_sp->lags[i].dev == lag_dev) + return &mlxsw_sp->lags[i]; } - if (free_lag_id < 0) - return -EBUSY; - *p_lag_id = free_lag_id; - return 0; + + return NULL; +} + +static struct mlxsw_sp_lag * +mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, struct net_device *lag_dev, + struct netlink_ext_ack *extack) +{ + struct mlxsw_sp_lag *lag; + + lag = mlxsw_sp_lag_find(mlxsw_sp, lag_dev); + if (lag) { + refcount_inc(&lag->ref_count); + return lag; + } + + return mlxsw_sp_lag_create(mlxsw_sp, lag_dev, extack); +} + +static void +mlxsw_sp_lag_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_lag *lag) +{ + if (!refcount_dec_and_test(&lag->ref_count)) + return; + + mlxsw_sp_lag_destroy(mlxsw_sp, lag); } static bool @@ -4365,12 +4399,6 @@ mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, struct netdev_lag_upper_info *lag_upper_info, struct netlink_ext_ack *extack) { - u16 lag_id; - - if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) { - NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported LAG devices"); - return false; - } if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type"); return false; @@ -4482,22 +4510,16 @@ static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; - struct mlxsw_sp_upper *lag; + struct mlxsw_sp_lag *lag; u16 lag_id; u8 port_index; int err; - err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); - if (err) - return err; - lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); - if (!lag->ref_count) { - err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); - if (err) - return err; - lag->dev = lag_dev; - } + lag = mlxsw_sp_lag_get(mlxsw_sp, lag_dev, extack); + if (IS_ERR(lag)) + return PTR_ERR(lag); + lag_id = lag->lag_id; err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); if (err) return err; @@ -4515,7 +4537,6 @@ static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, mlxsw_sp_port->local_port); mlxsw_sp_port->lag_id = lag_id; mlxsw_sp_port->lagged = 1; - lag->ref_count++; err = mlxsw_sp_fid_port_join_lag(mlxsw_sp_port); if (err) @@ -4542,7 +4563,6 @@ err_replay: err_router_join: mlxsw_sp_fid_port_leave_lag(mlxsw_sp_port); err_fid_port_join_lag: - lag->ref_count--; mlxsw_sp_port->lagged = 0; mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, mlxsw_sp_port->local_port); @@ -4550,8 +4570,7 @@ err_fid_port_join_lag: err_col_port_add: mlxsw_sp_lag_uppers_bridge_leave(mlxsw_sp_port, lag_dev); err_lag_uppers_bridge_join: - if (!lag->ref_count) - mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); + mlxsw_sp_lag_put(mlxsw_sp, lag); return err; } @@ -4560,12 +4579,11 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; u16 lag_id = mlxsw_sp_port->lag_id; - struct mlxsw_sp_upper *lag; + struct mlxsw_sp_lag *lag; if (!mlxsw_sp_port->lagged) return; - lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); - WARN_ON(lag->ref_count == 0); + lag = &mlxsw_sp->lags[lag_id]; mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); @@ -4579,13 +4597,11 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, mlxsw_sp_fid_port_leave_lag(mlxsw_sp_port); - if (lag->ref_count == 1) - mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); + mlxsw_sp_lag_put(mlxsw_sp, lag); mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, mlxsw_sp_port->local_port); mlxsw_sp_port->lagged = 0; - lag->ref_count--; /* Make sure untagged frames are allowed to ingress */ mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index a0c9775fa955..3beb5d0847ab 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -78,11 +78,6 @@ struct mlxsw_sp_span_entry; enum mlxsw_sp_l3proto; union mlxsw_sp_l3addr; -struct mlxsw_sp_upper { - struct net_device *dev; - unsigned int ref_count; -}; - enum mlxsw_sp_rif_type { MLXSW_SP_RIF_TYPE_SUBPORT, MLXSW_SP_RIF_TYPE_VLAN, @@ -136,6 +131,7 @@ struct mlxsw_sp_span_ops; struct mlxsw_sp_qdisc_state; struct mlxsw_sp_mall_entry; struct mlxsw_sp_pgt; +struct mlxsw_sp_lag; struct mlxsw_sp_port_mapping { u8 module; @@ -164,7 +160,8 @@ struct mlxsw_sp { const struct mlxsw_bus_info *bus_info; unsigned char base_mac[ETH_ALEN]; const unsigned char *mac_mask; - struct mlxsw_sp_upper *lags; + struct mlxsw_sp_lag *lags; + u16 max_lag; struct mlxsw_sp_port_mapping *port_mapping; struct mlxsw_sp_port_mapping_events port_mapping_events; struct rhashtable sample_trigger_ht; @@ -257,12 +254,6 @@ struct mlxsw_sp_fid_core_ops { void (*fini)(struct mlxsw_sp *mlxsw_sp); }; -static inline struct mlxsw_sp_upper * -mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id) -{ - return &mlxsw_sp->lags[lag_id]; -} - struct mlxsw_sp_port_pcpu_stats { u64 rx_packets; u64 rx_bytes; @@ -715,8 +706,8 @@ int mlxsw_sp_port_kill_vid(struct net_device *dev, int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, u16 vid_end, bool is_member, bool untagged); int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, - unsigned int counter_index, u64 *packets, - u64 *bytes); + unsigned int counter_index, bool clear, + u64 *packets, u64 *bytes); int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int *p_counter_index); void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c index 7c59c8a13584..3e70cee4d2f3 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c @@ -9,6 +9,7 @@ #include <linux/rhashtable.h> #include <linux/netdevice.h> #include <linux/mutex.h> +#include <linux/refcount.h> #include <net/net_namespace.h> #include <net/tc_act/tc_vlan.h> @@ -55,7 +56,7 @@ struct mlxsw_sp_acl_ruleset { struct rhash_head ht_node; /* Member of acl HT */ struct mlxsw_sp_acl_ruleset_ht_key ht_key; struct rhashtable rule_ht; - unsigned int ref_count; + refcount_t ref_count; unsigned int min_prio; unsigned int max_prio; unsigned long priv[]; @@ -99,7 +100,7 @@ static bool mlxsw_sp_acl_ruleset_is_singular(const struct mlxsw_sp_acl_ruleset *ruleset) { /* We hold a reference on ruleset ourselves */ - return ruleset->ref_count == 2; + return refcount_read(&ruleset->ref_count) == 2; } int mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp, @@ -176,7 +177,7 @@ mlxsw_sp_acl_ruleset_create(struct mlxsw_sp *mlxsw_sp, ruleset = kzalloc(alloc_size, GFP_KERNEL); if (!ruleset) return ERR_PTR(-ENOMEM); - ruleset->ref_count = 1; + refcount_set(&ruleset->ref_count, 1); ruleset->ht_key.block = block; ruleset->ht_key.chain_index = chain_index; ruleset->ht_key.ops = ops; @@ -222,13 +223,13 @@ static void mlxsw_sp_acl_ruleset_destroy(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp_acl_ruleset_ref_inc(struct mlxsw_sp_acl_ruleset *ruleset) { - ruleset->ref_count++; + refcount_inc(&ruleset->ref_count); } static void mlxsw_sp_acl_ruleset_ref_dec(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_ruleset *ruleset) { - if (--ruleset->ref_count) + if (!refcount_dec_and_test(&ruleset->ref_count)) return; mlxsw_sp_acl_ruleset_destroy(mlxsw_sp, ruleset); } @@ -1023,7 +1024,7 @@ int mlxsw_sp_acl_rule_get_stats(struct mlxsw_sp *mlxsw_sp, rulei = mlxsw_sp_acl_rule_rulei(rule); if (rulei->counter_valid) { err = mlxsw_sp_flow_counter_get(mlxsw_sp, rulei->counter_index, - ¤t_packets, + false, ¤t_packets, ¤t_bytes); if (err) return err; diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c index 50ea1eff02b2..f20052776b3f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c @@ -9,6 +9,7 @@ #include <linux/rhashtable.h> #include <linux/netdevice.h> #include <linux/mutex.h> +#include <linux/refcount.h> #include <net/devlink.h> #include <trace/events/mlxsw.h> @@ -155,7 +156,7 @@ struct mlxsw_sp_acl_tcam_vregion { struct mlxsw_sp_acl_tcam_rehash_ctx ctx; } rehash; struct mlxsw_sp *mlxsw_sp; - unsigned int ref_count; + refcount_t ref_count; }; struct mlxsw_sp_acl_tcam_vchunk; @@ -176,7 +177,7 @@ struct mlxsw_sp_acl_tcam_vchunk { unsigned int priority; /* Priority within the vregion and group */ struct mlxsw_sp_acl_tcam_vgroup *vgroup; struct mlxsw_sp_acl_tcam_vregion *vregion; - unsigned int ref_count; + refcount_t ref_count; }; struct mlxsw_sp_acl_tcam_entry { @@ -769,7 +770,7 @@ mlxsw_sp_acl_tcam_vregion_create(struct mlxsw_sp *mlxsw_sp, vregion->tcam = tcam; vregion->mlxsw_sp = mlxsw_sp; vregion->vgroup = vgroup; - vregion->ref_count = 1; + refcount_set(&vregion->ref_count, 1); vregion->key_info = mlxsw_afk_key_info_get(afk, elusage); if (IS_ERR(vregion->key_info)) { @@ -856,7 +857,7 @@ mlxsw_sp_acl_tcam_vregion_get(struct mlxsw_sp *mlxsw_sp, */ return ERR_PTR(-EOPNOTSUPP); } - vregion->ref_count++; + refcount_inc(&vregion->ref_count); return vregion; } @@ -871,7 +872,7 @@ static void mlxsw_sp_acl_tcam_vregion_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_tcam_vregion *vregion) { - if (--vregion->ref_count) + if (!refcount_dec_and_test(&vregion->ref_count)) return; mlxsw_sp_acl_tcam_vregion_destroy(mlxsw_sp, vregion); } @@ -924,7 +925,7 @@ mlxsw_sp_acl_tcam_vchunk_create(struct mlxsw_sp *mlxsw_sp, INIT_LIST_HEAD(&vchunk->ventry_list); vchunk->priority = priority; vchunk->vgroup = vgroup; - vchunk->ref_count = 1; + refcount_set(&vchunk->ref_count, 1); vregion = mlxsw_sp_acl_tcam_vregion_get(mlxsw_sp, vgroup, priority, elusage); @@ -1008,7 +1009,7 @@ mlxsw_sp_acl_tcam_vchunk_get(struct mlxsw_sp *mlxsw_sp, if (WARN_ON(!mlxsw_afk_key_info_subset(vchunk->vregion->key_info, elusage))) return ERR_PTR(-EINVAL); - vchunk->ref_count++; + refcount_inc(&vchunk->ref_count); return vchunk; } return mlxsw_sp_acl_tcam_vchunk_create(mlxsw_sp, vgroup, @@ -1019,7 +1020,7 @@ static void mlxsw_sp_acl_tcam_vchunk_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_tcam_vchunk *vchunk) { - if (--vchunk->ref_count) + if (!refcount_dec_and_test(&vchunk->ref_count)) return; mlxsw_sp_acl_tcam_vchunk_destroy(mlxsw_sp, vchunk); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c index c8a356accdf8..ca80af06465f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c @@ -1181,9 +1181,11 @@ static int mlxsw_sp_dpipe_table_adj_counters_update(void *priv, bool enable) char ratr_pl[MLXSW_REG_RATR_LEN]; struct mlxsw_sp *mlxsw_sp = priv; struct mlxsw_sp_nexthop *nh; + unsigned int n_done = 0; u32 adj_hash_index = 0; u32 adj_index = 0; u32 adj_size = 0; + int err; mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router) { if (!mlxsw_sp_nexthop_is_forward(nh) || @@ -1192,15 +1194,27 @@ static int mlxsw_sp_dpipe_table_adj_counters_update(void *priv, bool enable) mlxsw_sp_nexthop_indexes(nh, &adj_index, &adj_size, &adj_hash_index); - if (enable) - mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); - else - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + if (enable) { + err = mlxsw_sp_nexthop_counter_enable(mlxsw_sp, nh); + if (err) + goto err_counter_enable; + } else { + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); + } mlxsw_sp_nexthop_eth_update(mlxsw_sp, adj_index + adj_hash_index, nh, true, ratr_pl); + n_done++; } return 0; + +err_counter_enable: + mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router) { + if (!n_done--) + break; + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); + } + return err; } static u64 diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_mr_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_mr_tcam.c index 221aa6a474eb..01d81ae3662a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_mr_tcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_mr_tcam.c @@ -361,7 +361,7 @@ static int mlxsw_sp_mr_tcam_route_stats(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_mr_tcam_route *route = route_priv; return mlxsw_sp_flow_counter_get(mlxsw_sp, route->counter_index, - packets, bytes); + false, packets, bytes); } static int diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 7164f9e6370f..40ba314fbc72 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -19,6 +19,7 @@ #include <linux/net_namespace.h> #include <linux/mutex.h> #include <linux/genalloc.h> +#include <linux/xarray.h> #include <net/netevent.h> #include <net/neighbour.h> #include <net/arp.h> @@ -501,7 +502,7 @@ struct mlxsw_sp_rt6 { struct mlxsw_sp_lpm_tree { u8 id; /* tree ID */ - unsigned int ref_count; + refcount_t ref_count; enum mlxsw_sp_l3proto proto; unsigned long prefix_ref_count[MLXSW_SP_PREFIX_COUNT]; struct mlxsw_sp_prefix_usage prefix_usage; @@ -578,7 +579,7 @@ mlxsw_sp_lpm_tree_find_unused(struct mlxsw_sp *mlxsw_sp) for (i = 0; i < mlxsw_sp->router->lpm.tree_count; i++) { lpm_tree = &mlxsw_sp->router->lpm.trees[i]; - if (lpm_tree->ref_count == 0) + if (refcount_read(&lpm_tree->ref_count) == 0) return lpm_tree; } return NULL; @@ -654,7 +655,7 @@ mlxsw_sp_lpm_tree_create(struct mlxsw_sp *mlxsw_sp, sizeof(lpm_tree->prefix_usage)); memset(&lpm_tree->prefix_ref_count, 0, sizeof(lpm_tree->prefix_ref_count)); - lpm_tree->ref_count = 1; + refcount_set(&lpm_tree->ref_count, 1); return lpm_tree; err_left_struct_set: @@ -678,7 +679,7 @@ mlxsw_sp_lpm_tree_get(struct mlxsw_sp *mlxsw_sp, for (i = 0; i < mlxsw_sp->router->lpm.tree_count; i++) { lpm_tree = &mlxsw_sp->router->lpm.trees[i]; - if (lpm_tree->ref_count != 0 && + if (refcount_read(&lpm_tree->ref_count) && lpm_tree->proto == proto && mlxsw_sp_prefix_usage_eq(&lpm_tree->prefix_usage, prefix_usage)) { @@ -691,14 +692,15 @@ mlxsw_sp_lpm_tree_get(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp_lpm_tree_hold(struct mlxsw_sp_lpm_tree *lpm_tree) { - lpm_tree->ref_count++; + refcount_inc(&lpm_tree->ref_count); } static void mlxsw_sp_lpm_tree_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_lpm_tree *lpm_tree) { - if (--lpm_tree->ref_count == 0) - mlxsw_sp_lpm_tree_destroy(mlxsw_sp, lpm_tree); + if (!refcount_dec_and_test(&lpm_tree->ref_count)) + return; + mlxsw_sp_lpm_tree_destroy(mlxsw_sp, lpm_tree); } #define MLXSW_SP_LPM_TREE_MIN 1 /* tree 0 is reserved */ @@ -2250,7 +2252,7 @@ int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp, return -EINVAL; return mlxsw_sp_flow_counter_get(mlxsw_sp, neigh_entry->counter_index, - p_counter, NULL); + false, p_counter, NULL); } static struct mlxsw_sp_neigh_entry * @@ -3048,6 +3050,8 @@ struct mlxsw_sp_nexthop_key { struct fib_nh *fib_nh; }; +struct mlxsw_sp_nexthop_counter; + struct mlxsw_sp_nexthop { struct list_head neigh_list_node; /* member of neigh entry list */ struct list_head crif_list_node; @@ -3079,8 +3083,8 @@ struct mlxsw_sp_nexthop { struct mlxsw_sp_neigh_entry *neigh_entry; struct mlxsw_sp_ipip_entry *ipip_entry; }; - unsigned int counter_index; - bool counter_valid; + struct mlxsw_sp_nexthop_counter *counter; + u32 id; /* NH ID for members of a NH object group. */ }; static struct net_device * @@ -3105,8 +3109,10 @@ struct mlxsw_sp_nexthop_group_info { int sum_norm_weight; u8 adj_index_valid:1, gateway:1, /* routes using the group use a gateway */ - is_resilient:1; + is_resilient:1, + hw_stats:1; struct list_head list; /* member in nh_res_grp_list */ + struct xarray nexthop_counters; struct mlxsw_sp_nexthop nexthops[] __counted_by(count); }; @@ -3150,39 +3156,148 @@ struct mlxsw_sp_nexthop_group { bool can_destroy; }; -void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp, +struct mlxsw_sp_nexthop_counter { + unsigned int counter_index; + refcount_t ref_count; +}; + +static struct mlxsw_sp_nexthop_counter * +mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp) +{ + struct mlxsw_sp_nexthop_counter *nhct; + int err; + + nhct = kzalloc(sizeof(*nhct), GFP_KERNEL); + if (!nhct) + return ERR_PTR(-ENOMEM); + + err = mlxsw_sp_flow_counter_alloc(mlxsw_sp, &nhct->counter_index); + if (err) + goto err_counter_alloc; + + refcount_set(&nhct->ref_count, 1); + return nhct; + +err_counter_alloc: + kfree(nhct); + return ERR_PTR(err); +} + +static void +mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop_counter *nhct) +{ + mlxsw_sp_flow_counter_free(mlxsw_sp, nhct->counter_index); + kfree(nhct); +} + +static struct mlxsw_sp_nexthop_counter * +mlxsw_sp_nexthop_sh_counter_get(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop *nh) +{ + struct mlxsw_sp_nexthop_group *nh_grp = nh->nhgi->nh_grp; + struct mlxsw_sp_nexthop_counter *nhct; + void *ptr; + int err; + + nhct = xa_load(&nh_grp->nhgi->nexthop_counters, nh->id); + if (nhct) { + refcount_inc(&nhct->ref_count); + return nhct; + } + + nhct = mlxsw_sp_nexthop_counter_alloc(mlxsw_sp); + if (IS_ERR(nhct)) + return nhct; + + ptr = xa_store(&nh_grp->nhgi->nexthop_counters, nh->id, nhct, + GFP_KERNEL); + if (IS_ERR(ptr)) { + err = PTR_ERR(ptr); + goto err_store; + } + + return nhct; + +err_store: + mlxsw_sp_nexthop_counter_free(mlxsw_sp, nhct); + return ERR_PTR(err); +} + +static void mlxsw_sp_nexthop_sh_counter_put(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop *nh) +{ + struct mlxsw_sp_nexthop_group *nh_grp = nh->nhgi->nh_grp; + struct mlxsw_sp_nexthop_counter *nhct; + + nhct = xa_load(&nh_grp->nhgi->nexthop_counters, nh->id); + if (WARN_ON(!nhct)) + return; + + if (!refcount_dec_and_test(&nhct->ref_count)) + return; + + xa_erase(&nh_grp->nhgi->nexthop_counters, nh->id); + mlxsw_sp_nexthop_counter_free(mlxsw_sp, nhct); +} + +int mlxsw_sp_nexthop_counter_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop *nh) { + const char *table_adj = MLXSW_SP_DPIPE_TABLE_NAME_ADJ; + struct mlxsw_sp_nexthop_counter *nhct; struct devlink *devlink; + bool dpipe_stats; + + if (nh->counter) + return 0; devlink = priv_to_devlink(mlxsw_sp->core); - if (!devlink_dpipe_table_counter_enabled(devlink, - MLXSW_SP_DPIPE_TABLE_NAME_ADJ)) - return; + dpipe_stats = devlink_dpipe_table_counter_enabled(devlink, table_adj); + if (!(nh->nhgi->hw_stats || dpipe_stats)) + return 0; - if (mlxsw_sp_flow_counter_alloc(mlxsw_sp, &nh->counter_index)) - return; + if (nh->id) + nhct = mlxsw_sp_nexthop_sh_counter_get(mlxsw_sp, nh); + else + nhct = mlxsw_sp_nexthop_counter_alloc(mlxsw_sp); + if (IS_ERR(nhct)) + return PTR_ERR(nhct); - nh->counter_valid = true; + nh->counter = nhct; + return 0; } -void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_nexthop *nh) +void mlxsw_sp_nexthop_counter_disable(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop *nh) { - if (!nh->counter_valid) + if (!nh->counter) return; - mlxsw_sp_flow_counter_free(mlxsw_sp, nh->counter_index); - nh->counter_valid = false; + + if (nh->id) + mlxsw_sp_nexthop_sh_counter_put(mlxsw_sp, nh); + else + mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh->counter); + nh->counter = NULL; +} + +static int mlxsw_sp_nexthop_counter_update(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop *nh) +{ + if (nh->nhgi->hw_stats) + return mlxsw_sp_nexthop_counter_enable(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); + return 0; } int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop *nh, u64 *p_counter) { - if (!nh->counter_valid) + if (!nh->counter) return -EINVAL; - return mlxsw_sp_flow_counter_get(mlxsw_sp, nh->counter_index, - p_counter, NULL); + return mlxsw_sp_flow_counter_get(mlxsw_sp, nh->counter->counter_index, + true, p_counter, NULL); } struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router, @@ -3655,8 +3770,9 @@ static int __mlxsw_sp_nexthop_eth_update(struct mlxsw_sp *mlxsw_sp, WARN_ON_ONCE(1); return -EINVAL; } - if (nh->counter_valid) - mlxsw_reg_ratr_counter_pack(ratr_pl, nh->counter_index, true); + if (nh->counter) + mlxsw_reg_ratr_counter_pack(ratr_pl, nh->counter->counter_index, + true); else mlxsw_reg_ratr_counter_pack(ratr_pl, 0, false); @@ -3743,6 +3859,7 @@ mlxsw_sp_nexthop_group_update(struct mlxsw_sp *mlxsw_sp, nh = &nhgi->nexthops[i]; if (!nh->should_offload) { + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); nh->offloaded = 0; continue; } @@ -3750,6 +3867,10 @@ mlxsw_sp_nexthop_group_update(struct mlxsw_sp *mlxsw_sp, if (nh->update || reallocate) { int err = 0; + err = mlxsw_sp_nexthop_counter_update(mlxsw_sp, nh); + if (err) + return err; + err = mlxsw_sp_nexthop_update(mlxsw_sp, adj_index, nh, true, ratr_pl); if (err) @@ -4506,7 +4627,10 @@ static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp, if (err) return err; - mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); + err = mlxsw_sp_nexthop_counter_enable(mlxsw_sp, nh); + if (err) + goto err_counter_enable; + list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list); if (!dev) @@ -4530,7 +4654,8 @@ static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp, err_nexthop_neigh_init: list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); +err_counter_enable: mlxsw_sp_nexthop_remove(mlxsw_sp, nh); return err; } @@ -4540,7 +4665,7 @@ static void mlxsw_sp_nexthop4_fini(struct mlxsw_sp *mlxsw_sp, { mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); mlxsw_sp_nexthop_remove(mlxsw_sp, nh); } @@ -5005,9 +5130,9 @@ mlxsw_sp_nexthop_obj_init(struct mlxsw_sp *mlxsw_sp, break; } - mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list); nh->ifindex = dev->ifindex; + nh->id = nh_obj->id; err = mlxsw_sp_nexthop_type_init(mlxsw_sp, nh, dev); if (err) @@ -5029,7 +5154,6 @@ mlxsw_sp_nexthop_obj_init(struct mlxsw_sp *mlxsw_sp, err_type_init: list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); return err; } @@ -5040,7 +5164,7 @@ static void mlxsw_sp_nexthop_obj_fini(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_nexthop_obj_blackhole_fini(mlxsw_sp, nh); mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); nh->should_offload = 0; } @@ -5052,6 +5176,7 @@ mlxsw_sp_nexthop_obj_group_info_init(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop_group_info *nhgi; struct mlxsw_sp_nexthop *nh; bool is_resilient = false; + bool hw_stats = false; unsigned int nhs; int err, i; @@ -5061,9 +5186,11 @@ mlxsw_sp_nexthop_obj_group_info_init(struct mlxsw_sp *mlxsw_sp, break; case NH_NOTIFIER_INFO_TYPE_GRP: nhs = info->nh_grp->num_nh; + hw_stats = info->nh_grp->hw_stats; break; case NH_NOTIFIER_INFO_TYPE_RES_TABLE: nhs = info->nh_res_table->num_nh_buckets; + hw_stats = info->nh_res_table->hw_stats; is_resilient = true; break; default: @@ -5078,6 +5205,10 @@ mlxsw_sp_nexthop_obj_group_info_init(struct mlxsw_sp *mlxsw_sp, nhgi->gateway = mlxsw_sp_nexthop_obj_is_gateway(mlxsw_sp, info); nhgi->is_resilient = is_resilient; nhgi->count = nhs; + nhgi->hw_stats = hw_stats; + + xa_init_flags(&nhgi->nexthop_counters, XA_FLAGS_ALLOC1); + for (i = 0; i < nhgi->count; i++) { struct nh_notifier_single_info *nh_obj; int weight; @@ -5160,6 +5291,8 @@ mlxsw_sp_nexthop_obj_group_info_fini(struct mlxsw_sp *mlxsw_sp, } mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); WARN_ON_ONCE(nhgi->adj_index_valid); + WARN_ON(!xa_empty(&nhgi->nexthop_counters)); + xa_destroy(&nhgi->nexthop_counters); kfree(nhgi); } @@ -5299,6 +5432,43 @@ err_out: return err; } +static int mlxsw_sp_nexthop_obj_res_group_pre(struct mlxsw_sp *mlxsw_sp, + struct nh_notifier_info *info) +{ + struct nh_notifier_grp_info *grp_info = info->nh_grp; + struct mlxsw_sp_nexthop_group_info *nhgi; + struct mlxsw_sp_nexthop_group *nh_grp; + int err; + int i; + + nh_grp = mlxsw_sp_nexthop_obj_group_lookup(mlxsw_sp, info->id); + if (!nh_grp) + return 0; + nhgi = nh_grp->nhgi; + + if (nhgi->hw_stats == grp_info->hw_stats) + return 0; + + nhgi->hw_stats = grp_info->hw_stats; + + for (i = 0; i < nhgi->count; i++) { + struct mlxsw_sp_nexthop *nh = &nhgi->nexthops[i]; + + if (nh->offloaded) + nh->update = 1; + } + + err = mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); + if (err) + goto err_group_refresh; + + return 0; + +err_group_refresh: + nhgi->hw_stats = !grp_info->hw_stats; + return err; +} + static int mlxsw_sp_nexthop_obj_new(struct mlxsw_sp *mlxsw_sp, struct nh_notifier_info *info) { @@ -5475,6 +5645,79 @@ err_nexthop_obj_init: return err; } +static void +mlxsw_sp_nexthop_obj_mp_hw_stats_get(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop_group_info *nhgi, + struct nh_notifier_grp_hw_stats_info *info) +{ + int nhi; + + for (nhi = 0; nhi < info->num_nh; nhi++) { + struct mlxsw_sp_nexthop *nh = &nhgi->nexthops[nhi]; + u64 packets; + int err; + + err = mlxsw_sp_nexthop_counter_get(mlxsw_sp, nh, &packets); + if (err) + continue; + + nh_grp_hw_stats_report_delta(info, nhi, packets); + } +} + +static void +mlxsw_sp_nexthop_obj_res_hw_stats_get(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop_group_info *nhgi, + struct nh_notifier_grp_hw_stats_info *info) +{ + int nhi = -1; + int bucket; + + for (bucket = 0; bucket < nhgi->count; bucket++) { + struct mlxsw_sp_nexthop *nh = &nhgi->nexthops[bucket]; + u64 packets; + int err; + + if (nhi == -1 || info->stats[nhi].id != nh->id) { + for (nhi = 0; nhi < info->num_nh; nhi++) + if (info->stats[nhi].id == nh->id) + break; + if (WARN_ON_ONCE(nhi == info->num_nh)) { + nhi = -1; + continue; + } + } + + err = mlxsw_sp_nexthop_counter_get(mlxsw_sp, nh, &packets); + if (err) + continue; + + nh_grp_hw_stats_report_delta(info, nhi, packets); + } +} + +static void mlxsw_sp_nexthop_obj_hw_stats_get(struct mlxsw_sp *mlxsw_sp, + struct nh_notifier_info *info) +{ + struct mlxsw_sp_nexthop_group_info *nhgi; + struct mlxsw_sp_nexthop_group *nh_grp; + + if (info->type != NH_NOTIFIER_INFO_TYPE_GRP_HW_STATS) + return; + + nh_grp = mlxsw_sp_nexthop_obj_group_lookup(mlxsw_sp, info->id); + if (!nh_grp) + return; + nhgi = nh_grp->nhgi; + + if (nhgi->is_resilient) + mlxsw_sp_nexthop_obj_res_hw_stats_get(mlxsw_sp, nhgi, + info->nh_grp_hw_stats); + else + mlxsw_sp_nexthop_obj_mp_hw_stats_get(mlxsw_sp, nhgi, + info->nh_grp_hw_stats); +} + static int mlxsw_sp_nexthop_obj_event(struct notifier_block *nb, unsigned long event, void *ptr) { @@ -5490,6 +5733,10 @@ static int mlxsw_sp_nexthop_obj_event(struct notifier_block *nb, mutex_lock(&router->lock); switch (event) { + case NEXTHOP_EVENT_RES_TABLE_PRE_REPLACE: + err = mlxsw_sp_nexthop_obj_res_group_pre(router->mlxsw_sp, + info); + break; case NEXTHOP_EVENT_REPLACE: err = mlxsw_sp_nexthop_obj_new(router->mlxsw_sp, info); break; @@ -5500,6 +5747,9 @@ static int mlxsw_sp_nexthop_obj_event(struct notifier_block *nb, err = mlxsw_sp_nexthop_obj_bucket_replace(router->mlxsw_sp, info); break; + case NEXTHOP_EVENT_HW_STATS_REPORT_DELTA: + mlxsw_sp_nexthop_obj_hw_stats_get(router->mlxsw_sp, info); + break; default: break; } @@ -6733,7 +6983,10 @@ static int mlxsw_sp_nexthop6_init(struct mlxsw_sp *mlxsw_sp, #if IS_ENABLED(CONFIG_IPV6) nh->neigh_tbl = &nd_tbl; #endif - mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); + + err = mlxsw_sp_nexthop_counter_enable(mlxsw_sp, nh); + if (err) + return err; list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list); @@ -6749,7 +7002,7 @@ static int mlxsw_sp_nexthop6_init(struct mlxsw_sp *mlxsw_sp, err_nexthop_type_init: list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); return err; } @@ -6758,7 +7011,7 @@ static void mlxsw_sp_nexthop6_fini(struct mlxsw_sp *mlxsw_sp, { mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); list_del(&nh->router_list_node); - mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); + mlxsw_sp_nexthop_counter_disable(mlxsw_sp, nh); } static bool mlxsw_sp_rt6_is_gateway(const struct mlxsw_sp *mlxsw_sp, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h index ed3b628caafe..0432c7cc6b07 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h @@ -156,10 +156,10 @@ int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp, int mlxsw_sp_nexthop_eth_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, struct mlxsw_sp_nexthop *nh, bool force, char *ratr_pl); -void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp, +int mlxsw_sp_nexthop_counter_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop *nh); -void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_nexthop *nh); +void mlxsw_sp_nexthop_counter_disable(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nexthop *nh); static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1, const union mlxsw_sp_l3addr *addr2) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 6c749c148148..6397ff0dc951 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -61,7 +61,7 @@ struct mlxsw_sp_bridge_port { struct mlxsw_sp_bridge_device *bridge_device; struct list_head list; struct list_head vlans_list; - unsigned int ref_count; + refcount_t ref_count; u8 stp_state; unsigned long flags; bool mrouter; @@ -495,7 +495,7 @@ mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device, BR_MCAST_FLOOD; INIT_LIST_HEAD(&bridge_port->vlans_list); list_add(&bridge_port->list, &bridge_device->ports_list); - bridge_port->ref_count = 1; + refcount_set(&bridge_port->ref_count, 1); err = switchdev_bridge_port_offload(brport_dev, mlxsw_sp_port->dev, NULL, NULL, NULL, false, extack); @@ -531,7 +531,7 @@ mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge, bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev); if (bridge_port) { - bridge_port->ref_count++; + refcount_inc(&bridge_port->ref_count); return bridge_port; } @@ -558,7 +558,7 @@ static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge, { struct mlxsw_sp_bridge_device *bridge_device; - if (--bridge_port->ref_count != 0) + if (!refcount_dec_and_test(&bridge_port->ref_count)) return; bridge_device = bridge_port->bridge_device; mlxsw_sp_bridge_port_destroy(bridge_port); |