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-rw-r--r--vpp/stats/stats.c943
-rw-r--r--vpp/stats/stats.h70
2 files changed, 1013 insertions, 0 deletions
diff --git a/vpp/stats/stats.c b/vpp/stats/stats.c
new file mode 100644
index 00000000..3bebaf9e
--- /dev/null
+++ b/vpp/stats/stats.c
@@ -0,0 +1,943 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <stats/stats.h>
+#include <signal.h>
+#include <vlib/threads.h>
+
+#define STATS_DEBUG 0
+
+stats_main_t stats_main;
+
+#include <vnet/ip/ip.h>
+
+#include <api/vpe_msg_enum.h>
+
+#define f64_endian(a)
+#define f64_print(a,b)
+
+#define vl_typedefs /* define message structures */
+#include <api/vpe_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <api/vpe_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <api/vpe_all_api_h.h>
+#undef vl_printfun
+
+#define foreach_stats_msg \
+_(WANT_STATS, want_stats) \
+_(WANT_STATS_REPLY, want_stats_reply) \
+_(VNET_INTERFACE_COUNTERS, vnet_interface_counters) \
+_(VNET_IP4_FIB_COUNTERS, vnet_ip4_fib_counters) \
+_(VNET_IP6_FIB_COUNTERS, vnet_ip6_fib_counters)
+
+/* These constants ensure msg sizes <= 1024, aka ring allocation */
+#define SIMPLE_COUNTER_BATCH_SIZE 126
+#define COMBINED_COUNTER_BATCH_SIZE 63
+#define IP4_FIB_COUNTER_BATCH_SIZE 48
+#define IP6_FIB_COUNTER_BATCH_SIZE 30
+
+/* 5ms */
+#define STATS_RELEASE_DELAY_NS (1000 * 1000 * 5)
+/* ns/us us/ms */
+
+void dslock (stats_main_t *sm, int release_hint, int tag)
+{
+ u32 thread_id;
+ data_structure_lock_t *l = sm->data_structure_lock;
+
+ if(PREDICT_FALSE(l == 0))
+ return;
+
+ thread_id = os_get_cpu_number();
+ if (l->lock && l->thread_id == thread_id) {
+ l->count++;
+ return;
+ }
+
+ if (release_hint)
+ l->release_hint++;
+
+ while (__sync_lock_test_and_set (&l->lock, 1))
+ /* zzzz */ ;
+ l->tag = tag;
+ l->thread_id = thread_id;
+ l->count = 1;
+}
+
+void dsunlock (stats_main_t *sm)
+{
+ u32 thread_id;
+ data_structure_lock_t *l = sm->data_structure_lock;
+
+ if(PREDICT_FALSE(l == 0))
+ return;
+
+ thread_id = os_get_cpu_number();
+ ASSERT (l->lock && l->thread_id == thread_id);
+ l->count--;
+ if (l->count == 0) {
+ l->tag = -l->tag;
+ l->release_hint = 0;
+ CLIB_MEMORY_BARRIER();
+ l->lock = 0;
+ }
+}
+
+static void do_simple_interface_counters (stats_main_t * sm)
+{
+ vl_api_vnet_interface_counters_t * mp = 0;
+ vnet_interface_main_t * im = sm->interface_main;
+ api_main_t * am = sm->api_main;
+ vl_shmem_hdr_t *shmem_hdr = am->shmem_hdr;
+ unix_shared_memory_queue_t * q = shmem_hdr->vl_input_queue;
+ vlib_simple_counter_main_t * cm;
+ u32 items_this_message = 0;
+ u64 v, *vp = 0;
+ int i;
+
+ /*
+ * Prevent interface registration from expanding / moving the vectors...
+ * That tends never to happen, so we can hold this lock for a while.
+ */
+ vnet_interface_counter_lock (im);
+
+ vec_foreach (cm, im->sw_if_counters) {
+
+ for (i = 0; i < vec_len (cm->maxi); i++) {
+ if (mp == 0) {
+ items_this_message = clib_min (SIMPLE_COUNTER_BATCH_SIZE,
+ vec_len (cm->maxi) - i);
+
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof (*mp) + items_this_message * sizeof (v));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_INTERFACE_COUNTERS);
+ mp->vnet_counter_type = cm - im->sw_if_counters;
+ mp->is_combined = 0;
+ mp->first_sw_if_index = htonl (i);
+ mp->count = 0;
+ vp = (u64 *) mp->data;
+ }
+ v = vlib_get_simple_counter (cm, i);
+ clib_mem_unaligned (vp, u64) = clib_host_to_net_u64 (v);
+ vp++;
+ mp->count++;
+ if (mp->count == items_this_message) {
+ mp->count = htonl (items_this_message);
+ /* Send to the main thread... */
+ vl_msg_api_send_shmem (q, (u8 *)&mp);
+ mp = 0;
+ }
+ }
+ ASSERT (mp == 0);
+ }
+ vnet_interface_counter_unlock (im);
+}
+
+static void do_combined_interface_counters (stats_main_t * sm)
+{
+ vl_api_vnet_interface_counters_t * mp = 0;
+ vnet_interface_main_t * im = sm->interface_main;
+ api_main_t * am = sm->api_main;
+ vl_shmem_hdr_t *shmem_hdr = am->shmem_hdr;
+ unix_shared_memory_queue_t * q = shmem_hdr->vl_input_queue;
+ vlib_combined_counter_main_t * cm;
+ u32 items_this_message = 0;
+ vlib_counter_t v, *vp = 0;
+ int i;
+
+ vnet_interface_counter_lock (im);
+
+ vec_foreach (cm, im->combined_sw_if_counters) {
+
+ for (i = 0; i < vec_len (cm->maxi); i++) {
+ if (mp == 0) {
+ items_this_message = clib_min (COMBINED_COUNTER_BATCH_SIZE,
+ vec_len (cm->maxi) - i);
+
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof (*mp) + items_this_message * sizeof (v));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_INTERFACE_COUNTERS);
+ mp->vnet_counter_type = cm - im->combined_sw_if_counters;
+ mp->is_combined = 1;
+ mp->first_sw_if_index = htonl (i);
+ mp->count = 0;
+ vp = (vlib_counter_t *)mp->data;
+ }
+ vlib_get_combined_counter (cm, i, &v);
+ clib_mem_unaligned (&vp->packets, u64)
+ = clib_host_to_net_u64 (v.packets);
+ clib_mem_unaligned (&vp->bytes, u64)
+ = clib_host_to_net_u64 (v.bytes);
+ vp++;
+ mp->count++;
+ if (mp->count == items_this_message) {
+ mp->count = htonl (items_this_message);
+ /* Send to the main thread... */
+ vl_msg_api_send_shmem (q, (u8 *)&mp);
+ mp = 0;
+ }
+ }
+ ASSERT (mp == 0);
+ }
+ vnet_interface_counter_unlock (im);
+}
+
+/* from .../vnet/vnet/ip/lookup.c. Yuck */
+typedef CLIB_PACKED (struct {
+ ip4_address_t address;
+
+ u32 address_length : 6;
+
+ u32 index : 26;
+}) ip4_route_t;
+
+static void ip46_fib_stats_delay (stats_main_t * sm, u32 sec, u32 nsec)
+{
+ struct timespec _req, *req = &_req;
+ struct timespec _rem, *rem = &_rem;
+
+ req->tv_sec = sec;
+ req->tv_nsec = nsec;
+ while (1) {
+ if (nanosleep (req, rem) == 0)
+ break;
+ *req = *rem;
+ if (errno == EINTR)
+ continue;
+ clib_unix_warning ("nanosleep");
+ break;
+ }
+}
+
+static void do_ip4_fibs (stats_main_t * sm)
+{
+ ip4_main_t * im4 = &ip4_main;
+ api_main_t * am = sm->api_main;
+ vl_shmem_hdr_t *shmem_hdr = am->shmem_hdr;
+ unix_shared_memory_queue_t * q = shmem_hdr->vl_input_queue;
+ static ip4_route_t * routes;
+ ip4_route_t * r;
+ ip4_fib_t * fib;
+ ip_lookup_main_t * lm = &im4->lookup_main;
+ static uword * results;
+ vl_api_vnet_ip4_fib_counters_t * mp = 0;
+ u32 items_this_message;
+ vl_api_ip4_fib_counter_t *ctrp = 0;
+ u32 start_at_fib_index = 0;
+ int i;
+
+again:
+ vec_foreach (fib, im4->fibs) {
+ /* We may have bailed out due to control-plane activity */
+ while ((fib - im4->fibs) < start_at_fib_index)
+ continue;
+
+ if (mp == 0) {
+ items_this_message = IP4_FIB_COUNTER_BATCH_SIZE;
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof(*mp) +
+ items_this_message*sizeof(vl_api_ip4_fib_counter_t));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_IP4_FIB_COUNTERS);
+ mp->count = 0;
+ mp->vrf_id = ntohl(fib->table_id);
+ ctrp = (vl_api_ip4_fib_counter_t *)mp->c;
+ } else {
+ /* happens if the last FIB was empty... */
+ ASSERT(mp->count == 0);
+ mp->vrf_id = ntohl(fib->table_id);
+ }
+
+ dslock (sm, 0 /* release hint */, 1 /* tag */);
+
+ vec_reset_length (routes);
+ vec_reset_length (results);
+
+ for (i = 0; i < ARRAY_LEN (fib->adj_index_by_dst_address); i++) {
+ uword * hash = fib->adj_index_by_dst_address[i];
+ hash_pair_t * p;
+ ip4_route_t x;
+
+ x.address_length = i;
+
+ hash_foreach_pair (p, hash,
+ ({
+ x.address.data_u32 = p->key;
+ if (lm->fib_result_n_words > 1) {
+ x.index = vec_len (results);
+ vec_add (results, p->value, lm->fib_result_n_words);
+ }
+ else
+ x.index = p->value[0];
+
+ vec_add1 (routes, x);
+ if (sm->data_structure_lock->release_hint) {
+ start_at_fib_index = fib - im4->fibs;
+ dsunlock (sm);
+ ip46_fib_stats_delay (sm, 0 /* sec */,
+ STATS_RELEASE_DELAY_NS);
+ mp->count = 0;
+ ctrp = (vl_api_ip4_fib_counter_t *)mp->c;
+ goto again;
+ }
+ }));
+ }
+
+ vec_foreach (r, routes) {
+ vlib_counter_t c, sum;
+ uword i, j, n_left, n_nhs, adj_index, * result = 0;
+ ip_adjacency_t * adj;
+ ip_multipath_next_hop_t * nhs, tmp_nhs[1];
+
+ adj_index = r->index;
+ if (lm->fib_result_n_words > 1) {
+ result = vec_elt_at_index (results, adj_index);
+ adj_index = result[0];
+ }
+
+ adj = ip_get_adjacency (lm, adj_index);
+ if (adj->n_adj == 1) {
+ nhs = &tmp_nhs[0];
+ nhs[0].next_hop_adj_index = ~0; /* not used */
+ nhs[0].weight = 1;
+ n_nhs = 1;
+ } else {
+ ip_multipath_adjacency_t * madj;
+ madj = vec_elt_at_index (lm->multipath_adjacencies,
+ adj->heap_handle);
+ nhs = heap_elt_at_index
+ (lm->next_hop_heap,
+ madj->normalized_next_hops.heap_offset);
+ n_nhs = madj->normalized_next_hops.count;
+ }
+
+ n_left = nhs[0].weight;
+ vlib_counter_zero (&sum);
+ for (i = j = 0; i < adj->n_adj; i++) {
+ n_left -= 1;
+ vlib_get_combined_counter (&lm->adjacency_counters,
+ adj_index + i, &c);
+ vlib_counter_add (&sum, &c);
+ /*
+ * If we're done with this adj and it has actually
+ * seen at least one packet, send it.
+ */
+ if (n_left == 0 && sum.packets > 0) {
+
+ /* already in net byte order */
+ ctrp->address = r->address.as_u32;
+ ctrp->address_length = r->address_length;
+ ctrp->packets = clib_host_to_net_u64 (sum.packets);
+ ctrp->bytes = clib_host_to_net_u64(sum.bytes);
+ mp->count++;
+ ctrp++;
+
+ if (mp->count == items_this_message) {
+ mp->count = htonl (items_this_message);
+ /*
+ * If the main thread's input queue is stuffed,
+ * drop the data structure lock (which the main thread
+ * may want), and take a pause.
+ */
+ unix_shared_memory_queue_lock (q);
+ if (unix_shared_memory_queue_is_full (q)) {
+ dsunlock (sm);
+ vl_msg_api_send_shmem_nolock (q, (u8 *)&mp);
+ unix_shared_memory_queue_unlock (q);
+ mp = 0;
+ ip46_fib_stats_delay (sm, 0 /* sec */,
+ STATS_RELEASE_DELAY_NS);
+ goto again;
+ }
+ vl_msg_api_send_shmem_nolock (q, (u8 *)&mp);
+ unix_shared_memory_queue_unlock (q);
+
+ items_this_message = IP4_FIB_COUNTER_BATCH_SIZE;
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof(*mp) +
+ items_this_message*
+ sizeof(vl_api_ip4_fib_counter_t));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_IP4_FIB_COUNTERS);
+ mp->count = 0;
+ mp->vrf_id = ntohl(fib->table_id);
+ ctrp = (vl_api_ip4_fib_counter_t *)mp->c;
+ }
+
+ j++;
+ if (j < n_nhs) {
+ n_left = nhs[j].weight;
+ vlib_counter_zero (&sum);
+ }
+ }
+ } /* for each (mp or single) adj */
+ if (sm->data_structure_lock->release_hint) {
+ start_at_fib_index = fib - im4->fibs;
+ dsunlock (sm);
+ ip46_fib_stats_delay (sm, 0 /* sec */, STATS_RELEASE_DELAY_NS);
+ mp->count = 0;
+ ctrp = (vl_api_ip4_fib_counter_t *)mp->c;
+ goto again;
+ }
+ } /* vec_foreach (routes) */
+
+ dsunlock(sm);
+
+ /* Flush any data from this fib */
+ if (mp->count) {
+ mp->count = htonl (mp->count);
+ vl_msg_api_send_shmem (q, (u8 *)&mp);
+ mp = 0;
+ }
+ } /* vec_foreach (fib) */
+ /* If e.g. the last FIB had no reportable routes, free the buffer */
+ if (mp)
+ vl_msg_api_free (mp);
+}
+
+typedef struct {
+ ip6_address_t address;
+ u32 address_length;
+ u32 index;
+} ip6_route_t;
+
+typedef struct {
+ u32 fib_index;
+ ip6_route_t ** routep;
+ stats_main_t * sm;
+} add_routes_in_fib_arg_t;
+
+static void add_routes_in_fib (BVT(clib_bihash_kv) * kvp, void *arg)
+{
+ add_routes_in_fib_arg_t * ap = arg;
+ stats_main_t * sm = ap->sm;
+
+ if (sm->data_structure_lock->release_hint)
+ clib_longjmp (&sm->jmp_buf, 1);
+
+ if (kvp->key[2]>>32 == ap->fib_index)
+ {
+ ip6_address_t *addr;
+ ip6_route_t * r;
+ addr = (ip6_address_t *) kvp;
+ vec_add2 (*ap->routep, r, 1);
+ r->address = addr[0];
+ r->address_length = kvp->key[2] & 0xFF;
+ r->index = kvp->value;
+ }
+}
+
+static void do_ip6_fibs (stats_main_t * sm)
+{
+ ip6_main_t * im6 = &ip6_main;
+ api_main_t * am = sm->api_main;
+ vl_shmem_hdr_t *shmem_hdr = am->shmem_hdr;
+ unix_shared_memory_queue_t * q = shmem_hdr->vl_input_queue;
+ static ip6_route_t * routes;
+ ip6_route_t * r;
+ ip6_fib_t * fib;
+ ip_lookup_main_t * lm = &im6->lookup_main;
+ static uword * results;
+ vl_api_vnet_ip6_fib_counters_t * mp = 0;
+ u32 items_this_message;
+ vl_api_ip6_fib_counter_t *ctrp = 0;
+ u32 start_at_fib_index = 0;
+ BVT(clib_bihash) * h = &im6->ip6_lookup_table;
+ add_routes_in_fib_arg_t _a, *a=&_a;
+
+again:
+ vec_foreach (fib, im6->fibs) {
+ /* We may have bailed out due to control-plane activity */
+ while ((fib - im6->fibs) < start_at_fib_index)
+ continue;
+
+ if (mp == 0) {
+ items_this_message = IP6_FIB_COUNTER_BATCH_SIZE;
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof(*mp) +
+ items_this_message*sizeof(vl_api_ip6_fib_counter_t));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_IP6_FIB_COUNTERS);
+ mp->count = 0;
+ mp->vrf_id = ntohl(fib->table_id);
+ ctrp = (vl_api_ip6_fib_counter_t *)mp->c;
+ }
+
+ dslock (sm, 0 /* release hint */, 1 /* tag */);
+
+ vec_reset_length (routes);
+ vec_reset_length (results);
+
+ a->fib_index = fib - im6->fibs;
+ a->routep = &routes;
+ a->sm = sm;
+
+ if (clib_setjmp(&sm->jmp_buf, 0) == 0)
+ {
+ start_at_fib_index = fib - im6->fibs;
+ BV(clib_bihash_foreach_key_value_pair)(h, add_routes_in_fib, a);
+ }
+ else
+ {
+ dsunlock (sm);
+ ip46_fib_stats_delay (sm, 0 /* sec */,
+ STATS_RELEASE_DELAY_NS);
+ mp->count = 0;
+ ctrp = (vl_api_ip6_fib_counter_t *)mp->c;
+ goto again;
+ }
+
+ vec_foreach (r, routes) {
+ vlib_counter_t c, sum;
+ uword i, j, n_left, n_nhs, adj_index, * result = 0;
+ ip_adjacency_t * adj;
+ ip_multipath_next_hop_t * nhs, tmp_nhs[1];
+
+ adj_index = r->index;
+ if (lm->fib_result_n_words > 1) {
+ result = vec_elt_at_index (results, adj_index);
+ adj_index = result[0];
+ }
+
+ adj = ip_get_adjacency (lm, adj_index);
+ if (adj->n_adj == 1) {
+ nhs = &tmp_nhs[0];
+ nhs[0].next_hop_adj_index = ~0; /* not used */
+ nhs[0].weight = 1;
+ n_nhs = 1;
+ } else {
+ ip_multipath_adjacency_t * madj;
+ madj = vec_elt_at_index (lm->multipath_adjacencies,
+ adj->heap_handle);
+ nhs = heap_elt_at_index
+ (lm->next_hop_heap,
+ madj->normalized_next_hops.heap_offset);
+ n_nhs = madj->normalized_next_hops.count;
+ }
+
+ n_left = nhs[0].weight;
+ vlib_counter_zero (&sum);
+ for (i = j = 0; i < adj->n_adj; i++) {
+ n_left -= 1;
+ vlib_get_combined_counter (&lm->adjacency_counters,
+ adj_index + i, &c);
+ vlib_counter_add (&sum, &c);
+ if (n_left == 0 && sum.packets > 0) {
+
+ /* already in net byte order */
+ ctrp->address[0] = r->address.as_u64[0];
+ ctrp->address[1] = r->address.as_u64[1];
+ ctrp->address_length = (u8) r->address_length;
+ ctrp->packets = clib_host_to_net_u64 (sum.packets);
+ ctrp->bytes = clib_host_to_net_u64(sum.bytes);
+ mp->count++;
+ ctrp++;
+
+ if (mp->count == items_this_message) {
+ mp->count = htonl (items_this_message);
+ /*
+ * If the main thread's input queue is stuffed,
+ * drop the data structure lock (which the main thread
+ * may want), and take a pause.
+ */
+ unix_shared_memory_queue_lock (q);
+ if (unix_shared_memory_queue_is_full (q)) {
+ dsunlock (sm);
+ vl_msg_api_send_shmem_nolock (q, (u8 *)&mp);
+ unix_shared_memory_queue_unlock (q);
+ mp = 0;
+ ip46_fib_stats_delay (sm, 0 /* sec */,
+ STATS_RELEASE_DELAY_NS);
+ goto again;
+ }
+ vl_msg_api_send_shmem_nolock (q, (u8 *)&mp);
+ unix_shared_memory_queue_unlock (q);
+
+ items_this_message = IP6_FIB_COUNTER_BATCH_SIZE;
+ mp = vl_msg_api_alloc_as_if_client
+ (sizeof(*mp) +
+ items_this_message*
+ sizeof(vl_api_ip6_fib_counter_t));
+ mp->_vl_msg_id = ntohs (VL_API_VNET_IP6_FIB_COUNTERS);
+ mp->count = 0;
+ mp->vrf_id = ntohl(fib->table_id);
+ ctrp = (vl_api_ip6_fib_counter_t *)mp->c;
+ }
+
+ j++;
+ if (j < n_nhs) {
+ n_left = nhs[j].weight;
+ vlib_counter_zero (&sum);
+ }
+ }
+ } /* for each (mp or single) adj */
+ if (sm->data_structure_lock->release_hint) {
+ start_at_fib_index = fib - im6->fibs;
+ dsunlock (sm);
+ ip46_fib_stats_delay (sm, 0 /* sec */, STATS_RELEASE_DELAY_NS);
+ mp->count = 0;
+ ctrp = (vl_api_ip6_fib_counter_t *)mp->c;
+ goto again;
+ }
+ } /* vec_foreach (routes) */
+
+ dsunlock(sm);
+
+ /* Flush any data from this fib */
+ if (mp->count) {
+ mp->count = htonl (mp->count);
+ vl_msg_api_send_shmem (q, (u8 *)&mp);
+ mp = 0;
+ }
+ } /* vec_foreach (fib) */
+ /* If e.g. the last FIB had no reportable routes, free the buffer */
+ if (mp)
+ vl_msg_api_free (mp);
+}
+
+static void stats_thread_fn (void *arg)
+{
+ stats_main_t *sm = &stats_main;
+ vlib_worker_thread_t *w = (vlib_worker_thread_t *)arg;
+
+ /* stats thread wants no signals. */
+ {
+ sigset_t s;
+ sigfillset (&s);
+ pthread_sigmask (SIG_SETMASK, &s, 0);
+ }
+
+ clib_mem_set_heap (w->thread_mheap);
+
+ while (1) {
+ /* 10 second poll interval */
+ ip46_fib_stats_delay (sm, 10 /* secs */, 0 /* nsec */);
+
+ if (! (sm->enable_poller))
+ continue;
+ do_simple_interface_counters (sm);
+ do_combined_interface_counters (sm);
+ do_ip4_fibs (sm);
+ do_ip6_fibs (sm);
+ }
+}
+
+static void vl_api_vnet_interface_counters_t_handler (
+ vl_api_vnet_interface_counters_t *mp)
+{
+ vpe_client_registration_t *reg;
+ stats_main_t * sm = &stats_main;
+ unix_shared_memory_queue_t *q, *q_prev = NULL;
+ vl_api_vnet_interface_counters_t *mp_copy = NULL;
+ u32 mp_size;
+
+#if STATS_DEBUG > 0
+ char *counter_name;
+ u32 count, sw_if_index;
+ int i;
+#endif
+
+ mp_size = sizeof (*mp) + (ntohl(mp->count) *
+ (mp->is_combined ? sizeof (vlib_counter_t) : sizeof (u64)));
+
+ pool_foreach(reg, sm->stats_registrations,
+ ({
+ q = vl_api_client_index_to_input_queue (reg->client_index);
+ if (q) {
+ if (q_prev && (q_prev->cursize < q_prev->maxsize)) {
+ mp_copy = vl_msg_api_alloc_as_if_client(mp_size);
+ memcpy(mp_copy, mp, mp_size);
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ mp = mp_copy;
+ }
+ q_prev = q;
+ }
+ }));
+
+#if STATS_DEBUG > 0
+ count = ntohl (mp->count);
+ sw_if_index = ntohl (mp->first_sw_if_index);
+ if (mp->is_combined == 0) {
+ u64 * vp, v;
+ vp = (u64 *) mp->data;
+
+ switch (mp->vnet_counter_type) {
+ case VNET_INTERFACE_COUNTER_DROP:
+ counter_name = "drop";
+ break;
+ case VNET_INTERFACE_COUNTER_PUNT:
+ counter_name = "punt";
+ break;
+ case VNET_INTERFACE_COUNTER_IP4:
+ counter_name = "ip4";
+ break;
+ case VNET_INTERFACE_COUNTER_IP6:
+ counter_name = "ip6";
+ break;
+ case VNET_INTERFACE_COUNTER_RX_NO_BUF:
+ counter_name = "rx-no-buff";
+ break;
+ case VNET_INTERFACE_COUNTER_RX_MISS:,
+ counter_name = "rx-miss";
+ break;
+ case VNET_INTERFACE_COUNTER_RX_ERROR:,
+ counter_name = "rx-error (fifo-full)";
+ break;
+ case VNET_INTERFACE_COUNTER_TX_ERROR:,
+ counter_name = "tx-error (fifo-full)";
+ break;
+ default:
+ counter_name = "bogus";
+ break;
+ }
+ for (i = 0; i < count; i++) {
+ v = clib_mem_unaligned (vp, u64);
+ v = clib_net_to_host_u64 (v);
+ vp++;
+ fformat (stdout, "%U.%s %lld\n", format_vnet_sw_if_index_name,
+ sm->vnet_main, sw_if_index, counter_name, v);
+ sw_if_index++;
+ }
+ } else {
+ vlib_counter_t *vp;
+ u64 packets, bytes;
+ vp = (vlib_counter_t *) mp->data;
+
+ switch (mp->vnet_counter_type) {
+ case VNET_INTERFACE_COUNTER_RX:
+ counter_name = "rx";
+ break;
+ case VNET_INTERFACE_COUNTER_TX:
+ counter_name = "tx";
+ break;
+ default:
+ counter_name = "bogus";
+ break;
+ }
+ for (i = 0; i < count; i++) {
+ packets = clib_mem_unaligned (&vp->packets, u64);
+ packets = clib_net_to_host_u64 (packets);
+ bytes = clib_mem_unaligned (&vp->bytes, u64);
+ bytes = clib_net_to_host_u64 (bytes);
+ vp++;
+ fformat (stdout, "%U.%s.packets %lld\n",
+ format_vnet_sw_if_index_name,
+ sm->vnet_main, sw_if_index, counter_name, packets);
+ fformat (stdout, "%U.%s.bytes %lld\n",
+ format_vnet_sw_if_index_name,
+ sm->vnet_main, sw_if_index, counter_name, bytes);
+ sw_if_index++;
+ }
+ }
+#endif
+ if (q_prev &&
+ (q_prev->cursize < q_prev->maxsize)) {
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ } else {
+ vl_msg_api_free (mp);
+ }
+}
+
+static void vl_api_vnet_ip4_fib_counters_t_handler (
+ vl_api_vnet_ip4_fib_counters_t *mp)
+{
+ vpe_client_registration_t *reg;
+ stats_main_t * sm = &stats_main;
+ unix_shared_memory_queue_t *q, *q_prev = NULL;
+ vl_api_vnet_ip4_fib_counters_t *mp_copy = NULL;
+ u32 mp_size;
+
+ mp_size = sizeof(*mp_copy) +
+ ntohl(mp->count) * sizeof(vl_api_ip4_fib_counter_t);
+
+ pool_foreach(reg, sm->stats_registrations,
+ ({
+ q = vl_api_client_index_to_input_queue (reg->client_index);
+ if (q) {
+ if (q_prev && (q_prev->cursize < q_prev->maxsize)) {
+ mp_copy = vl_msg_api_alloc_as_if_client(mp_size);
+ memcpy(mp_copy, mp, mp_size);
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ mp = mp_copy;
+ }
+ q_prev = q;
+ }
+ }));
+ if (q_prev &&
+ (q_prev->cursize < q_prev->maxsize)) {
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ } else {
+ vl_msg_api_free (mp);
+ }
+}
+
+static void vl_api_vnet_ip6_fib_counters_t_handler (
+ vl_api_vnet_ip6_fib_counters_t *mp)
+{
+ vpe_client_registration_t *reg;
+ stats_main_t * sm = &stats_main;
+ unix_shared_memory_queue_t *q, *q_prev = NULL;
+ vl_api_vnet_ip6_fib_counters_t *mp_copy = NULL;
+ u32 mp_size;
+
+ mp_size = sizeof(*mp_copy) +
+ ntohl(mp->count) * sizeof(vl_api_ip6_fib_counter_t);
+
+ pool_foreach(reg, sm->stats_registrations,
+ ({
+ q = vl_api_client_index_to_input_queue (reg->client_index);
+ if (q) {
+ if (q_prev && (q_prev->cursize < q_prev->maxsize)) {
+ mp_copy = vl_msg_api_alloc_as_if_client(mp_size);
+ memcpy(mp_copy, mp, mp_size);
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ mp = mp_copy;
+ }
+ q_prev = q;
+ }
+ }));
+ if (q_prev &&
+ (q_prev->cursize < q_prev->maxsize)) {
+ vl_msg_api_send_shmem (q_prev, (u8 *)&mp);
+ } else {
+ vl_msg_api_free (mp);
+ }
+}
+
+static void vl_api_want_stats_reply_t_handler (vl_api_want_stats_reply_t *mp)
+{ clib_warning ("BUG"); }
+
+static void vl_api_want_stats_t_handler (
+ vl_api_want_stats_t *mp)
+{
+ stats_main_t *sm = &stats_main;
+ vpe_client_registration_t *rp;
+ vl_api_want_stats_reply_t *rmp;
+ uword *p;
+ i32 retval = 0;
+ unix_shared_memory_queue_t *q;
+
+ p = hash_get (sm->stats_registration_hash, mp->client_index);
+ if (p) {
+ if (mp->enable_disable) {
+ clib_warning ("pid %d: already enabled...", mp->pid);
+ retval = -2;
+ goto reply;
+ } else {
+ rp = pool_elt_at_index (sm->stats_registrations, p[0]);
+ pool_put (sm->stats_registrations, rp);
+ hash_unset (sm->stats_registration_hash, mp->client_index);
+ goto reply;
+ }
+ }
+ if (mp->enable_disable == 0) {
+ clib_warning ("pid %d: already disabled...", mp->pid);
+ retval = -3;
+ goto reply;
+ }
+ pool_get (sm->stats_registrations, rp);
+ rp->client_index = mp->client_index;
+ rp->client_pid = mp->pid;
+ hash_set (sm->stats_registration_hash, rp->client_index,
+ rp - sm->stats_registrations);
+
+reply:
+ if (pool_elts(sm->stats_registrations))
+ sm->enable_poller = 1;
+ else
+ sm->enable_poller = 0;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+
+ if (!q)
+ return;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs(VL_API_WANT_STATS_REPLY);
+ rmp->context = mp->context;
+ rmp->retval = retval;
+
+ vl_msg_api_send_shmem (q, (u8 *)&rmp);
+}
+
+int stats_memclnt_delete_callback (u32 client_index)
+{
+ vpe_client_registration_t *rp;
+ stats_main_t *sm = &stats_main;
+ uword * p;
+
+ p = hash_get (sm->stats_registration_hash, client_index);
+ if (p) {
+ rp = pool_elt_at_index (sm->stats_registrations, p[0]);
+ pool_put (sm->stats_registrations, rp);
+ hash_unset (sm->stats_registration_hash, client_index);
+ }
+
+ return 0;
+}
+
+#define vl_api_vnet_ip4_fib_counters_t_endian vl_noop_handler
+#define vl_api_vnet_ip4_fib_counters_t_print vl_noop_handler
+#define vl_api_vnet_ip6_fib_counters_t_endian vl_noop_handler
+#define vl_api_vnet_ip6_fib_counters_t_print vl_noop_handler
+
+static clib_error_t * stats_init (vlib_main_t * vm)
+{
+ stats_main_t * sm = &stats_main;
+ api_main_t * am = &api_main;
+ void *vlib_worker_thread_bootstrap_fn (void *arg);
+
+ sm->vlib_main = vm;
+ sm->vnet_main = vnet_get_main();
+ sm->interface_main = &vnet_get_main()->interface_main;
+ sm->api_main = am;
+ sm->stats_poll_interval_in_seconds = 10;
+ sm->data_structure_lock =
+ clib_mem_alloc_aligned (sizeof(data_structure_lock_t),
+ CLIB_CACHE_LINE_BYTES);
+ memset(sm->data_structure_lock, 0, sizeof (*sm->data_structure_lock));
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 0 /* do NOT trace! */);
+ foreach_stats_msg;
+#undef _
+
+ /* tell the msg infra not to free these messages... */
+ am->message_bounce [VL_API_VNET_INTERFACE_COUNTERS] = 1;
+ am->message_bounce [VL_API_VNET_IP4_FIB_COUNTERS] = 1;
+ am->message_bounce [VL_API_VNET_IP6_FIB_COUNTERS] = 1;
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (stats_init);
+
+VLIB_REGISTER_THREAD (stats_thread_reg, static) = {
+ .name = "stats",
+ .function = stats_thread_fn,
+ .fixed_count = 1,
+ .count = 1,
+ .no_data_structure_clone = 1,
+ .use_pthreads = 1,
+ .mheap_size = 2<<20,
+};
diff --git a/vpp/stats/stats.h b/vpp/stats/stats.h
new file mode 100644
index 00000000..d6046a42
--- /dev/null
+++ b/vpp/stats/stats.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __included_stats_h__
+#define __included_stats_h__
+
+#include <time.h>
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/interface.h>
+#include <pthread.h>
+#include <vlib/threads.h>
+#include <vlib/unix/unix.h>
+#include <vlibmemory/api.h>
+#include <vlibmemory/unix_shared_memory_queue.h>
+
+typedef struct {
+ u32 client_index; /* in memclnt registration pool */
+ u32 client_pid;
+} vpe_client_registration_t;
+
+typedef struct {
+ volatile u32 lock;
+ volatile u32 release_hint;
+ u32 thread_id;
+ u32 count;
+ int tag;
+} data_structure_lock_t;
+
+typedef struct {
+ void *mheap;
+ pthread_t thread_self;
+ pthread_t thread_handle;
+
+ u32 stats_poll_interval_in_seconds;
+ u32 enable_poller;
+
+ uword *stats_registration_hash;
+ vpe_client_registration_t *stats_registrations;
+
+ /* control-plane data structure lock */
+ data_structure_lock_t * data_structure_lock;
+
+ /* bail out of FIB walk if set */
+ clib_longjmp_t jmp_buf;
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+ vnet_interface_main_t * interface_main;
+ api_main_t * api_main;
+} stats_main_t;
+
+stats_main_t stats_main;
+
+void dslock (stats_main_t *sm, int release_hint, int tag);
+void dsunlock (stats_main_t *sm);
+
+#endif /* __included_stats_h__ */