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35 #include <rte_common.h>
36 #include <rte_cycles.h>
37 #include <rte_lcore.h>
39 #include <rte_keepalive.h>
40 #include <rte_malloc.h>
41 #include <rte_cycles.h>
43 struct rte_keepalive {
45 enum rte_keepalive_state {
50 } __rte_cache_aligned state_flags[RTE_KEEPALIVE_MAXCORES];
52 /** Last-seen-alive timestamps */
53 uint64_t last_alive[RTE_KEEPALIVE_MAXCORES];
57 * Indexed by core id, non-zero if the core should be checked.
59 uint8_t active_cores[RTE_KEEPALIVE_MAXCORES];
61 /** Dead core handler. */
62 rte_keepalive_failure_callback_t callback;
65 * Dead core handler app data.
66 * Pointer is passed to dead core handler.
74 print_trace(const char *msg, struct rte_keepalive *keepcfg, int idx_core)
76 RTE_LOG(INFO, EAL, "%sLast seen %" PRId64 "ms ago.\n",
78 ((rte_rdtsc() - keepcfg->last_alive[idx_core])*1000)
84 rte_keepalive_dispatch_pings(__rte_unused void *ptr_timer,
87 struct rte_keepalive *keepcfg = ptr_data;
90 for (idx_core = 0; idx_core < RTE_KEEPALIVE_MAXCORES; idx_core++) {
91 if (keepcfg->active_cores[idx_core] == 0)
94 switch (keepcfg->state_flags[idx_core]) {
95 case ALIVE: /* Alive */
96 keepcfg->state_flags[idx_core] = MISSING;
97 keepcfg->last_alive[idx_core] = rte_rdtsc();
99 case MISSING: /* MIA */
100 print_trace("Core MIA. ", keepcfg, idx_core);
101 keepcfg->state_flags[idx_core] = DEAD;
103 case DEAD: /* Dead */
104 keepcfg->state_flags[idx_core] = GONE;
105 print_trace("Core died. ", keepcfg, idx_core);
106 if (keepcfg->callback)
108 keepcfg->callback_data,
112 case GONE: /* Buried */
118 struct rte_keepalive *
119 rte_keepalive_create(rte_keepalive_failure_callback_t callback,
122 struct rte_keepalive *keepcfg;
124 keepcfg = rte_zmalloc("RTE_EAL_KEEPALIVE",
125 sizeof(struct rte_keepalive),
126 RTE_CACHE_LINE_SIZE);
127 if (keepcfg != NULL) {
128 keepcfg->callback = callback;
129 keepcfg->callback_data = data;
130 keepcfg->tsc_initial = rte_rdtsc();
131 keepcfg->tsc_mhz = rte_get_tsc_hz() / 1000;
137 rte_keepalive_register_core(struct rte_keepalive *keepcfg, const int id_core)
139 if (id_core < RTE_KEEPALIVE_MAXCORES) {
140 keepcfg->active_cores[id_core] = 1;
141 keepcfg->last_alive[id_core] = rte_rdtsc();
146 rte_keepalive_mark_alive(struct rte_keepalive *keepcfg)
148 keepcfg->state_flags[rte_lcore_id()] = ALIVE;