X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_timer%2Frte_timer.c;h=89f27074f82344076b1f3476d608edd1d3c26a6a;hb=b80924d677c77ec023a0585c27004ba250045d11;hp=9f2e921a8ae489b2ffa8830f55d15d88130bf98b;hpb=0efd46d7955de6a7b5d011fcac51bd42a8e6409b;p=dpdk.git diff --git a/lib/librte_timer/rte_timer.c b/lib/librte_timer/rte_timer.c index 9f2e921a8a..89f27074f8 100644 --- a/lib/librte_timer/rte_timer.c +++ b/lib/librte_timer/rte_timer.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -24,7 +25,7 @@ #include #include #include -#include +#include #include "rte_timer.h" @@ -60,13 +61,12 @@ struct rte_timer_data { }; #define RTE_MAX_DATA_ELS 64 +static const struct rte_memzone *rte_timer_data_mz; +static int *volatile rte_timer_mz_refcnt; static struct rte_timer_data *rte_timer_data_arr; static const uint32_t default_data_id; static uint32_t rte_timer_subsystem_initialized; -/* For maintaining older interfaces for a period */ -static struct rte_timer_data default_timer_data; - /* when debug is enabled, store some statistics */ #ifdef RTE_LIBRTE_TIMER_DEBUG #define __TIMER_STAT_ADD(priv_timer, name, n) do { \ @@ -81,7 +81,8 @@ static struct rte_timer_data default_timer_data; static inline int timer_data_valid(uint32_t id) { - return !!(rte_timer_data_arr[id].internal_flags & FL_ALLOCATED); + return rte_timer_data_arr && + (rte_timer_data_arr[id].internal_flags & FL_ALLOCATED); } /* validate ID and retrieve timer data pointer, or return error value */ @@ -91,7 +92,7 @@ timer_data_valid(uint32_t id) timer_data = &rte_timer_data_arr[id]; \ } while (0) -int __rte_experimental +int rte_timer_data_alloc(uint32_t *id_ptr) { int i; @@ -115,7 +116,7 @@ rte_timer_data_alloc(uint32_t *id_ptr) return -ENOSPC; } -int __rte_experimental +int rte_timer_data_dealloc(uint32_t id) { struct rte_timer_data *timer_data; @@ -126,22 +127,6 @@ rte_timer_data_dealloc(uint32_t id) return 0; } -void -rte_timer_subsystem_init_v20(void) -{ - unsigned lcore_id; - struct priv_timer *priv_timer = default_timer_data.priv_timer; - - /* since priv_timer is static, it's zeroed by default, so only init some - * fields. - */ - for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id ++) { - rte_spinlock_init(&priv_timer[lcore_id].list_lock); - priv_timer[lcore_id].prev_lcore = lcore_id; - } -} -VERSION_SYMBOL(rte_timer_subsystem_init, _v20, 2.0); - /* Init the timer library. Allocate an array of timer data structs in shared * memory, and allocate the zeroth entry for use with original timer * APIs. Since the intersection of the sets of lcore ids in primary and @@ -149,64 +134,74 @@ VERSION_SYMBOL(rte_timer_subsystem_init, _v20, 2.0); * multiple processes. */ int -rte_timer_subsystem_init_v1905(void) +rte_timer_subsystem_init(void) { const struct rte_memzone *mz; struct rte_timer_data *data; int i, lcore_id; static const char *mz_name = "rte_timer_mz"; + const size_t data_arr_size = + RTE_MAX_DATA_ELS * sizeof(*rte_timer_data_arr); + const size_t mem_size = data_arr_size + sizeof(*rte_timer_mz_refcnt); + bool do_full_init = true; if (rte_timer_subsystem_initialized) return -EALREADY; - if (rte_eal_process_type() != RTE_PROC_PRIMARY) { - mz = rte_memzone_lookup(mz_name); - if (mz == NULL) - return -EEXIST; - - rte_timer_data_arr = mz->addr; - - rte_timer_data_arr[default_data_id].internal_flags |= - FL_ALLOCATED; - - rte_timer_subsystem_initialized = 1; - - return 0; - } + rte_mcfg_timer_lock(); - mz = rte_memzone_reserve_aligned(mz_name, - RTE_MAX_DATA_ELS * sizeof(*rte_timer_data_arr), - SOCKET_ID_ANY, 0, RTE_CACHE_LINE_SIZE); - if (mz == NULL) - return -ENOMEM; + mz = rte_memzone_lookup(mz_name); + if (mz == NULL) { + mz = rte_memzone_reserve_aligned(mz_name, mem_size, + SOCKET_ID_ANY, 0, RTE_CACHE_LINE_SIZE); + if (mz == NULL) { + rte_mcfg_timer_unlock(); + return -ENOMEM; + } + do_full_init = true; + } else + do_full_init = false; + rte_timer_data_mz = mz; rte_timer_data_arr = mz->addr; - - for (i = 0; i < RTE_MAX_DATA_ELS; i++) { - data = &rte_timer_data_arr[i]; - - for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { - rte_spinlock_init( - &data->priv_timer[lcore_id].list_lock); - data->priv_timer[lcore_id].prev_lcore = lcore_id; + rte_timer_mz_refcnt = (void *)((char *)mz->addr + data_arr_size); + + if (do_full_init) { + for (i = 0; i < RTE_MAX_DATA_ELS; i++) { + data = &rte_timer_data_arr[i]; + + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; + lcore_id++) { + rte_spinlock_init( + &data->priv_timer[lcore_id].list_lock); + data->priv_timer[lcore_id].prev_lcore = + lcore_id; + } } } rte_timer_data_arr[default_data_id].internal_flags |= FL_ALLOCATED; + (*rte_timer_mz_refcnt)++; + + rte_mcfg_timer_unlock(); rte_timer_subsystem_initialized = 1; return 0; } -MAP_STATIC_SYMBOL(int rte_timer_subsystem_init(void), - rte_timer_subsystem_init_v1905); -BIND_DEFAULT_SYMBOL(rte_timer_subsystem_init, _v1905, 19.05); -void __rte_experimental +void rte_timer_subsystem_finalize(void) { - if (rte_timer_data_arr) - rte_free(rte_timer_data_arr); + if (!rte_timer_subsystem_initialized) + return; + + rte_mcfg_timer_lock(); + + if (--(*rte_timer_mz_refcnt) == 0) + rte_memzone_free(rte_timer_data_mz); + + rte_mcfg_timer_unlock(); rte_timer_subsystem_initialized = 0; } @@ -534,44 +529,15 @@ __rte_timer_reset(struct rte_timer *tim, uint64_t expire, /* Reset and start the timer associated with the timer handle tim */ int -rte_timer_reset_v20(struct rte_timer *tim, uint64_t ticks, - enum rte_timer_type type, unsigned int tim_lcore, - rte_timer_cb_t fct, void *arg) -{ - uint64_t cur_time = rte_get_timer_cycles(); - uint64_t period; - - if (unlikely((tim_lcore != (unsigned)LCORE_ID_ANY) && - !(rte_lcore_is_enabled(tim_lcore) || - rte_lcore_has_role(tim_lcore, ROLE_SERVICE)))) - return -1; - - if (type == PERIODICAL) - period = ticks; - else - period = 0; - - return __rte_timer_reset(tim, cur_time + ticks, period, tim_lcore, - fct, arg, 0, &default_timer_data); -} -VERSION_SYMBOL(rte_timer_reset, _v20, 2.0); - -int -rte_timer_reset_v1905(struct rte_timer *tim, uint64_t ticks, +rte_timer_reset(struct rte_timer *tim, uint64_t ticks, enum rte_timer_type type, unsigned int tim_lcore, rte_timer_cb_t fct, void *arg) { return rte_timer_alt_reset(default_data_id, tim, ticks, type, tim_lcore, fct, arg); } -MAP_STATIC_SYMBOL(int rte_timer_reset(struct rte_timer *tim, uint64_t ticks, - enum rte_timer_type type, - unsigned int tim_lcore, - rte_timer_cb_t fct, void *arg), - rte_timer_reset_v1905); -BIND_DEFAULT_SYMBOL(rte_timer_reset, _v1905, 19.05); - -int __rte_experimental + +int rte_timer_alt_reset(uint32_t timer_data_id, struct rte_timer *tim, uint64_t ticks, enum rte_timer_type type, unsigned int tim_lcore, rte_timer_cb_t fct, void *arg) @@ -640,22 +606,12 @@ __rte_timer_stop(struct rte_timer *tim, int local_is_locked, /* Stop the timer associated with the timer handle tim */ int -rte_timer_stop_v20(struct rte_timer *tim) -{ - return __rte_timer_stop(tim, 0, &default_timer_data); -} -VERSION_SYMBOL(rte_timer_stop, _v20, 2.0); - -int -rte_timer_stop_v1905(struct rte_timer *tim) +rte_timer_stop(struct rte_timer *tim) { return rte_timer_alt_stop(default_data_id, tim); } -MAP_STATIC_SYMBOL(int rte_timer_stop(struct rte_timer *tim), - rte_timer_stop_v1905); -BIND_DEFAULT_SYMBOL(rte_timer_stop, _v1905, 19.05); -int __rte_experimental +int rte_timer_alt_stop(uint32_t timer_data_id, struct rte_timer *tim) { struct rte_timer_data *timer_data; @@ -799,15 +755,8 @@ __rte_timer_manage(struct rte_timer_data *timer_data) priv_timer[lcore_id].running_tim = NULL; } -void -rte_timer_manage_v20(void) -{ - __rte_timer_manage(&default_timer_data); -} -VERSION_SYMBOL(rte_timer_manage, _v20, 2.0); - int -rte_timer_manage_v1905(void) +rte_timer_manage(void) { struct rte_timer_data *timer_data; @@ -817,10 +766,8 @@ rte_timer_manage_v1905(void) return 0; } -MAP_STATIC_SYMBOL(int rte_timer_manage(void), rte_timer_manage_v1905); -BIND_DEFAULT_SYMBOL(rte_timer_manage, _v1905, 19.05); -int __rte_experimental +int rte_timer_alt_manage(uint32_t timer_data_id, unsigned int *poll_lcores, int nb_poll_lcores, @@ -993,7 +940,7 @@ rte_timer_alt_manage(uint32_t timer_data_id, } /* Walk pending lists, stopping timers and calling user-specified function */ -int __rte_experimental +int rte_timer_stop_all(uint32_t timer_data_id, unsigned int *walk_lcores, int nb_walk_lcores, rte_timer_stop_all_cb_t f, void *f_arg) @@ -1030,6 +977,33 @@ rte_timer_stop_all(uint32_t timer_data_id, unsigned int *walk_lcores, return 0; } +int64_t +rte_timer_next_ticks(void) +{ + unsigned int lcore_id = rte_lcore_id(); + struct rte_timer_data *timer_data; + struct priv_timer *priv_timer; + const struct rte_timer *tm; + uint64_t cur_time; + int64_t left = -ENOENT; + + TIMER_DATA_VALID_GET_OR_ERR_RET(default_data_id, timer_data, -EINVAL); + + priv_timer = timer_data->priv_timer; + cur_time = rte_get_timer_cycles(); + + rte_spinlock_lock(&priv_timer[lcore_id].list_lock); + tm = priv_timer[lcore_id].pending_head.sl_next[0]; + if (tm) { + left = tm->expire - cur_time; + if (left < 0) + left = 0; + } + rte_spinlock_unlock(&priv_timer[lcore_id].list_lock); + + return left; +} + /* dump statistics about timers */ static void __rte_timer_dump_stats(struct rte_timer_data *timer_data __rte_unused, FILE *f) @@ -1056,23 +1030,13 @@ __rte_timer_dump_stats(struct rte_timer_data *timer_data __rte_unused, FILE *f) #endif } -void -rte_timer_dump_stats_v20(FILE *f) -{ - __rte_timer_dump_stats(&default_timer_data, f); -} -VERSION_SYMBOL(rte_timer_dump_stats, _v20, 2.0); - int -rte_timer_dump_stats_v1905(FILE *f) +rte_timer_dump_stats(FILE *f) { return rte_timer_alt_dump_stats(default_data_id, f); } -MAP_STATIC_SYMBOL(int rte_timer_dump_stats(FILE *f), - rte_timer_dump_stats_v1905); -BIND_DEFAULT_SYMBOL(rte_timer_dump_stats, _v1905, 19.05); -int __rte_experimental +int rte_timer_alt_dump_stats(uint32_t timer_data_id __rte_unused, FILE *f) { struct rte_timer_data *timer_data;