diff options
| -rw-r--r-- | Documentation/networking/batman-adv.txt | 5 | ||||
| -rw-r--r-- | net/batman-adv/bat_iv_ogm.c | 10 | ||||
| -rw-r--r-- | net/batman-adv/main.c | 2 | ||||
| -rw-r--r-- | net/batman-adv/main.h | 27 | ||||
| -rw-r--r-- | net/batman-adv/routing.c | 11 | ||||
| -rw-r--r-- | net/batman-adv/soft-interface.c | 66 | ||||
| -rw-r--r-- | net/batman-adv/translation-table.c | 8 | ||||
| -rw-r--r-- | net/batman-adv/types.h | 17 |
8 files changed, 143 insertions, 3 deletions
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt index 75a592365af9..8f3ae4a6147e 100644 --- a/Documentation/networking/batman-adv.txt +++ b/Documentation/networking/batman-adv.txt @@ -211,6 +211,11 @@ The debug output can be changed at runtime using the file will enable debug messages for when routes change. +Counters for different types of packets entering and leaving the +batman-adv module are available through ethtool: + +# ethtool --statistics bat0 + BATCTL ------ diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index ec351199c652..99ec218df7f2 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -196,8 +196,12 @@ static void bat_iv_ogm_send_to_if(struct forw_packet *forw_packet, /* create clone because function is called more than once */ skb = skb_clone(forw_packet->skb, GFP_ATOMIC); - if (skb) + if (skb) { + batadv_inc_counter(bat_priv, BAT_CNT_MGMT_TX); + batadv_add_counter(bat_priv, BAT_CNT_MGMT_TX_BYTES, + skb->len + ETH_HLEN); send_skb_packet(skb, hard_iface, broadcast_addr); + } } /* send a batman ogm packet */ @@ -1203,6 +1207,10 @@ static int bat_iv_ogm_receive(struct sk_buff *skb, if (bat_priv->bat_algo_ops->bat_ogm_emit != bat_iv_ogm_emit) return NET_RX_DROP; + batadv_inc_counter(bat_priv, BAT_CNT_MGMT_RX); + batadv_add_counter(bat_priv, BAT_CNT_MGMT_RX_BYTES, + skb->len + ETH_HLEN); + packet_len = skb_headlen(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb); packet_buff = skb->data; diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 083a2993efe4..bd83aa4e7c87 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -153,6 +153,8 @@ void mesh_free(struct net_device *soft_iface) bla_free(bat_priv); + free_percpu(bat_priv->bat_counters); + atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); } diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 630bbe8968ca..6e0cbdc48321 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -138,6 +138,7 @@ enum dbg_level { #include <linux/kthread.h> /* kernel threads */ #include <linux/pkt_sched.h> /* schedule types */ #include <linux/workqueue.h> /* workqueue */ +#include <linux/percpu.h> #include <linux/slab.h> #include <net/sock.h> /* struct sock */ #include <linux/jiffies.h> @@ -242,4 +243,30 @@ static inline bool has_timed_out(unsigned long timestamp, unsigned int timeout) _dummy > smallest_signed_int(_dummy); }) #define seq_after(x, y) seq_before(y, x) +/* Stop preemption on local cpu while incrementing the counter */ +static inline void batadv_add_counter(struct bat_priv *bat_priv, size_t idx, + size_t count) +{ + int cpu = get_cpu(); + per_cpu_ptr(bat_priv->bat_counters, cpu)[idx] += count; + put_cpu(); +} + +#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) + +/* Sum and return the cpu-local counters for index 'idx' */ +static inline uint64_t batadv_sum_counter(struct bat_priv *bat_priv, size_t idx) +{ + uint64_t *counters; + int cpu; + int sum = 0; + + for_each_possible_cpu(cpu) { + counters = per_cpu_ptr(bat_priv->bat_counters, cpu); + sum += counters[idx]; + } + + return sum; +} + #endif /* _NET_BATMAN_ADV_MAIN_H_ */ diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 015471d801b4..369604c99a46 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -600,6 +600,8 @@ int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) switch (tt_query->flags & TT_QUERY_TYPE_MASK) { case TT_REQUEST: + batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_RX); + /* If we cannot provide an answer the tt_request is * forwarded */ if (!send_tt_response(bat_priv, tt_query)) { @@ -612,6 +614,8 @@ int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) } break; case TT_RESPONSE: + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_RX); + if (is_my_mac(tt_query->dst)) { /* packet needs to be linearized to access the TT * changes */ @@ -665,6 +669,8 @@ int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if) if (is_broadcast_ether_addr(ethhdr->h_source)) goto out; + batadv_inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_RX); + roam_adv_packet = (struct roam_adv_packet *)skb->data; if (!is_my_mac(roam_adv_packet->dst)) @@ -872,6 +878,11 @@ static int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if) /* decrement ttl */ unicast_packet->header.ttl--; + /* Update stats counter */ + batadv_inc_counter(bat_priv, BAT_CNT_FORWARD); + batadv_add_counter(bat_priv, BAT_CNT_FORWARD_BYTES, + skb->len + ETH_HLEN); + /* route it */ send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = NET_RX_SUCCESS; diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 6e2530b02043..304a7ba09e03 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -45,6 +45,10 @@ static void bat_get_drvinfo(struct net_device *dev, static u32 bat_get_msglevel(struct net_device *dev); static void bat_set_msglevel(struct net_device *dev, u32 value); static u32 bat_get_link(struct net_device *dev); +static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); +static void batadv_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data); +static int batadv_get_sset_count(struct net_device *dev, int stringset); static const struct ethtool_ops bat_ethtool_ops = { .get_settings = bat_get_settings, @@ -52,6 +56,9 @@ static const struct ethtool_ops bat_ethtool_ops = { .get_msglevel = bat_get_msglevel, .set_msglevel = bat_set_msglevel, .get_link = bat_get_link, + .get_strings = batadv_get_strings, + .get_ethtool_stats = batadv_get_ethtool_stats, + .get_sset_count = batadv_get_sset_count, }; int my_skb_head_push(struct sk_buff *skb, unsigned int len) @@ -399,13 +406,18 @@ struct net_device *softif_create(const char *name) bat_priv->primary_if = NULL; bat_priv->num_ifaces = 0; + bat_priv->bat_counters = __alloc_percpu(sizeof(uint64_t) * BAT_CNT_NUM, + __alignof__(uint64_t)); + if (!bat_priv->bat_counters) + goto unreg_soft_iface; + ret = bat_algo_select(bat_priv, bat_routing_algo); if (ret < 0) - goto unreg_soft_iface; + goto free_bat_counters; ret = sysfs_add_meshif(soft_iface); if (ret < 0) - goto unreg_soft_iface; + goto free_bat_counters; ret = debugfs_add_meshif(soft_iface); if (ret < 0) @@ -421,6 +433,8 @@ unreg_debugfs: debugfs_del_meshif(soft_iface); unreg_sysfs: sysfs_del_meshif(soft_iface); +free_bat_counters: + free_percpu(bat_priv->bat_counters); unreg_soft_iface: unregister_netdevice(soft_iface); return NULL; @@ -486,3 +500,51 @@ static u32 bat_get_link(struct net_device *dev) { return 1; } + +/* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 + * Declare each description string in struct.name[] to get fixed sized buffer + * and compile time checking for strings longer than ETH_GSTRING_LEN. + */ +static const struct { + const char name[ETH_GSTRING_LEN]; +} bat_counters_strings[] = { + { "forward" }, + { "forward_bytes" }, + { "mgmt_tx" }, + { "mgmt_tx_bytes" }, + { "mgmt_rx" }, + { "mgmt_rx_bytes" }, + { "tt_request_tx" }, + { "tt_request_rx" }, + { "tt_response_tx" }, + { "tt_response_rx" }, + { "tt_roam_adv_tx" }, + { "tt_roam_adv_rx" }, +}; + +static void batadv_get_strings(struct net_device *dev, uint32_t stringset, + uint8_t *data) +{ + if (stringset == ETH_SS_STATS) + memcpy(data, bat_counters_strings, + sizeof(bat_counters_strings)); +} + +static void batadv_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, + uint64_t *data) +{ + struct bat_priv *bat_priv = netdev_priv(dev); + int i; + + for (i = 0; i < BAT_CNT_NUM; i++) + data[i] = batadv_sum_counter(bat_priv, i); +} + +static int batadv_get_sset_count(struct net_device *dev, int stringset) +{ + if (stringset == ETH_SS_STATS) + return BAT_CNT_NUM; + + return -EOPNOTSUPP; +} diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index a66c2dcd1088..ca53542e1e8e 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1356,6 +1356,8 @@ static int send_tt_request(struct bat_priv *bat_priv, dst_orig_node->orig, neigh_node->addr, (full_table ? 'F' : '.')); + batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_TX); + send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; @@ -1480,6 +1482,8 @@ static bool send_other_tt_response(struct bat_priv *bat_priv, res_dst_orig_node->orig, neigh_node->addr, req_dst_orig_node->orig, req_ttvn); + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); + send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = true; goto out; @@ -1596,6 +1600,8 @@ static bool send_my_tt_response(struct bat_priv *bat_priv, orig_node->orig, neigh_node->addr, (tt_response->flags & TT_FULL_TABLE ? 'F' : '.')); + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); + send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = true; goto out; @@ -1895,6 +1901,8 @@ static void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client, "Sending ROAMING_ADV to %pM (client %pM) via %pM\n", orig_node->orig, client, neigh_node->addr); + batadv_inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_TX); + send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 547dc339f33d..6b569debc1a6 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -148,9 +148,26 @@ struct bcast_duplist_entry { }; #endif +enum bat_counters { + BAT_CNT_FORWARD, + BAT_CNT_FORWARD_BYTES, + BAT_CNT_MGMT_TX, + BAT_CNT_MGMT_TX_BYTES, + BAT_CNT_MGMT_RX, + BAT_CNT_MGMT_RX_BYTES, + BAT_CNT_TT_REQUEST_TX, + BAT_CNT_TT_REQUEST_RX, + BAT_CNT_TT_RESPONSE_TX, + BAT_CNT_TT_RESPONSE_RX, + BAT_CNT_TT_ROAM_ADV_TX, + BAT_CNT_TT_ROAM_ADV_RX, + BAT_CNT_NUM, +}; + struct bat_priv { atomic_t mesh_state; struct net_device_stats stats; + uint64_t __percpu *bat_counters; /* Per cpu counters */ atomic_t aggregated_ogms; /* boolean */ atomic_t bonding; /* boolean */ atomic_t fragmentation; /* boolean */ |