drivers/event/octeontx/timvf_evdev.c

   1 /*
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  * Copyright(c) 2017 Cavium, Inc
   4  */
   5
   6 #include "timvf_evdev.h"
   7
   8 int otx_logtype_timvf;
   9
  10 RTE_INIT(otx_timvf_init_log);
  11 static void
  12 otx_timvf_init_log(void)
  13 {
  14         otx_logtype_timvf = rte_log_register("pmd.event.octeontx.timer");
  15         if (otx_logtype_timvf >= 0)
  16                 rte_log_set_level(otx_logtype_timvf, RTE_LOG_NOTICE);
  17 }
  18
  19 static void
  20 timvf_ring_info_get(const struct rte_event_timer_adapter *adptr,
  21                 struct rte_event_timer_adapter_info *adptr_info)
  22 {
  23         struct timvf_ring *timr = adptr->data->adapter_priv;
  24         adptr_info->max_tmo_ns = timr->max_tout;
  25         adptr_info->min_resolution_ns = timr->tck_nsec;
  26         rte_memcpy(&adptr_info->conf, &adptr->data->conf,
  27                         sizeof(struct rte_event_timer_adapter_conf));
  28 }
  29
  30 static int
  31 timvf_ring_create(struct rte_event_timer_adapter *adptr)
  32 {
  33         char pool_name[25];
  34         int ret;
  35         uint64_t nb_timers;
  36         struct rte_event_timer_adapter_conf *rcfg = &adptr->data->conf;
  37         struct timvf_ring *timr;
  38         struct timvf_info tinfo;
  39         const char *mempool_ops;
  40
  41         if (timvf_info(&tinfo) < 0)
  42                 return -ENODEV;
  43
  44         if (adptr->data->id >= tinfo.total_timvfs)
  45                 return -ENODEV;
  46
  47         timr = rte_zmalloc("octeontx_timvf_priv",
  48                         sizeof(struct timvf_ring), 0);
  49         if (timr == NULL)
  50                 return -ENOMEM;
  51
  52         adptr->data->adapter_priv = timr;
  53         /* Check config parameters. */
  54         if ((rcfg->clk_src != RTE_EVENT_TIMER_ADAPTER_CPU_CLK) &&
  55                         (!rcfg->timer_tick_ns ||
  56                          rcfg->timer_tick_ns < TIM_MIN_INTERVAL)) {
  57                 timvf_log_err("Too low timer ticks");
  58                 goto cfg_err;
  59         }
  60
  61         timr->clk_src = (int) rcfg->clk_src;
  62         timr->tim_ring_id = adptr->data->id;
  63         timr->tck_nsec = rcfg->timer_tick_ns;
  64         timr->max_tout = rcfg->max_tmo_ns;
  65         timr->nb_bkts = (timr->max_tout / timr->tck_nsec);
  66         timr->vbar0 = timvf_bar(timr->tim_ring_id, 0);
  67         timr->bkt_pos = (uint8_t *)timr->vbar0 + TIM_VRING_REL;
  68         nb_timers = rcfg->nb_timers;
  69         timr->get_target_bkt = bkt_mod;
  70
  71         timr->nb_chunks = nb_timers / nb_chunk_slots;
  72
  73         timr->bkt = rte_zmalloc("octeontx_timvf_bucket",
  74                         (timr->nb_bkts) * sizeof(struct tim_mem_bucket),
  75                         0);
  76         if (timr->bkt == NULL)
  77                 goto mem_err;
  78
  79         snprintf(pool_name, 30, "timvf_chunk_pool%d", timr->tim_ring_id);
  80         timr->chunk_pool = (void *)rte_mempool_create_empty(pool_name,
  81                         timr->nb_chunks, TIM_CHUNK_SIZE, 0, 0, rte_socket_id(),
  82                         0);
  83
  84         if (!timr->chunk_pool) {
  85                 rte_free(timr->bkt);
  86                 timvf_log_err("Unable to create chunkpool.");
  87                 return -ENOMEM;
  88         }
  89
  90         mempool_ops = rte_mbuf_best_mempool_ops();
  91         ret = rte_mempool_set_ops_byname(timr->chunk_pool,
  92                         mempool_ops, NULL);
  93
  94         if (ret != 0) {
  95                 timvf_log_err("Unable to set chunkpool ops.");
  96                 goto mem_err;
  97         }
  98
  99         ret = rte_mempool_populate_default(timr->chunk_pool);
 100         if (ret < 0) {
 101                 timvf_log_err("Unable to set populate chunkpool.");
 102                 goto mem_err;
 103         }
 104         timvf_write64(0, (uint8_t *)timr->vbar0 + TIM_VRING_BASE);
 105         timvf_write64(0, (uint8_t *)timr->vbar0 + TIM_VF_NRSPERR_INT);
 106         timvf_write64(0, (uint8_t *)timr->vbar0 + TIM_VF_NRSPERR_INT_W1S);
 107         timvf_write64(0x7, (uint8_t *)timr->vbar0 + TIM_VF_NRSPERR_ENA_W1C);
 108         timvf_write64(0x7, (uint8_t *)timr->vbar0 + TIM_VF_NRSPERR_ENA_W1S);
 109
 110         return 0;
 111 mem_err:
 112         rte_free(timr);
 113         return -ENOMEM;
 114 cfg_err:
 115         rte_free(timr);
 116         return -EINVAL;
 117 }
 118
 119 static int
 120 timvf_ring_free(struct rte_event_timer_adapter *adptr)
 121 {
 122         struct timvf_ring *timr = adptr->data->adapter_priv;
 123         rte_mempool_free(timr->chunk_pool);
 124         rte_free(timr->bkt);
 125         rte_free(adptr->data->adapter_priv);
 126         return 0;
 127 }
 128
 129 static struct rte_event_timer_adapter_ops timvf_ops = {
 130         .init           = timvf_ring_create,
 131         .uninit         = timvf_ring_free,
 132         .get_info       = timvf_ring_info_get,
 133 };
 134
 135 int
 136 timvf_timer_adapter_caps_get(const struct rte_eventdev *dev, uint64_t flags,
 137                 uint32_t *caps, const struct rte_event_timer_adapter_ops **ops,
 138                 uint8_t enable_stats)
 139 {
 140         RTE_SET_USED(dev);
 141         RTE_SET_USED(flags);
 142         RTE_SET_USED(enable_stats);
 143         *caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT;
 144         *ops = &timvf_ops;
 145         return -EINVAL;
 146 }