char pool_name[25];
int rc;
+ cache_sz /= rte_lcore_count();
/* Create chunk pool. */
if (rcfg->flags & RTE_EVENT_TIMER_ADAPTER_F_SP_PUT) {
mp_flags = MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET;
cache_sz = RTE_MEMPOOL_CACHE_MAX_SIZE;
if (!tim_ring->disable_npa) {
- /* NPA need not have cache as free is not visible to SW */
tim_ring->chunk_pool = rte_mempool_create_empty(pool_name,
tim_ring->nb_chunks, tim_ring->chunk_sz,
- 0, 0, rte_socket_id(), mp_flags);
+ cache_sz, 0, rte_socket_id(), mp_flags);
if (tim_ring->chunk_pool == NULL) {
otx2_err("Unable to create chunkpool.");
struct tim_ring_req *free_req;
struct tim_lf_alloc_req *req;
struct tim_lf_alloc_rsp *rsp;
- uint64_t nb_timers;
- int rc;
+ int i, rc;
if (dev == NULL)
return -ENODEV;
tim_ring->max_tout = rcfg->max_tmo_ns;
tim_ring->nb_bkts = (tim_ring->max_tout / tim_ring->tck_nsec);
tim_ring->chunk_sz = dev->chunk_sz;
- nb_timers = rcfg->nb_timers;
+ tim_ring->nb_timers = rcfg->nb_timers;
tim_ring->disable_npa = dev->disable_npa;
tim_ring->enable_stats = dev->enable_stats;
- tim_ring->nb_chunks = nb_timers / OTX2_TIM_NB_CHUNK_SLOTS(
+ for (i = 0; i < dev->ring_ctl_cnt ; i++) {
+ struct otx2_tim_ctl *ring_ctl = &dev->ring_ctl_data[i];
+
+ if (ring_ctl->ring == tim_ring->ring_id) {
+ tim_ring->chunk_sz = ring_ctl->chunk_slots ?
+ ((uint32_t)(ring_ctl->chunk_slots + 1) *
+ OTX2_TIM_CHUNK_ALIGNMENT) : tim_ring->chunk_sz;
+ tim_ring->enable_stats = ring_ctl->enable_stats;
+ tim_ring->disable_npa = ring_ctl->disable_npa;
+ }
+ }
+
+ tim_ring->nb_chunks = tim_ring->nb_timers / OTX2_TIM_NB_CHUNK_SLOTS(
tim_ring->chunk_sz);
tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
tim_optimze_bkt_param(tim_ring);
}
- tim_ring->nb_chunks = tim_ring->nb_chunks * tim_ring->nb_bkts;
+ if (tim_ring->disable_npa)
+ tim_ring->nb_chunks = tim_ring->nb_chunks * tim_ring->nb_bkts;
+ else
+ tim_ring->nb_chunks = tim_ring->nb_chunks + tim_ring->nb_bkts;
+
/* Create buckets. */
tim_ring->bkt = rte_zmalloc("otx2_tim_bucket", (tim_ring->nb_bkts) *
sizeof(struct otx2_tim_bkt),
tim_set_fp_ops(tim_ring);
/* Update SSO xae count. */
- sso_updt_xae_cnt(sso_pmd_priv(dev->event_dev), (void *)&nb_timers,
+ sso_updt_xae_cnt(sso_pmd_priv(dev->event_dev), (void *)tim_ring,
RTE_EVENT_TYPE_TIMER);
sso_xae_reconfigure(dev->event_dev);
+ otx2_tim_dbg("Total memory used %"PRIu64"MB\n",
+ (uint64_t)(((tim_ring->nb_chunks * tim_ring->chunk_sz)
+ + (tim_ring->nb_bkts * sizeof(struct otx2_tim_bkt))) /
+ BIT_ULL(20)));
+
return rc;
chnk_mem_err:
return rc;
}
+static void
+otx2_tim_calibrate_start_tsc(struct otx2_tim_ring *tim_ring)
+{
+#define OTX2_TIM_CALIB_ITER 1E6
+ uint32_t real_bkt, bucket;
+ int icount, ecount = 0;
+ uint64_t bkt_cyc;
+
+ for (icount = 0; icount < OTX2_TIM_CALIB_ITER; icount++) {
+ real_bkt = otx2_read64(tim_ring->base + TIM_LF_RING_REL) >> 44;
+ bkt_cyc = rte_rdtsc();
+ bucket = (bkt_cyc - tim_ring->ring_start_cyc) /
+ tim_ring->tck_int;
+ bucket = bucket % (tim_ring->nb_bkts);
+ tim_ring->ring_start_cyc = bkt_cyc - (real_bkt *
+ tim_ring->tck_int);
+ if (bucket != real_bkt)
+ ecount++;
+ }
+ tim_ring->last_updt_cyc = bkt_cyc;
+ otx2_tim_dbg("Bucket mispredict %3.2f distance %d\n",
+ 100 - (((double)(icount - ecount) / (double)icount) * 100),
+ bucket - real_bkt);
+}
+
+static int
+otx2_tim_ring_start(const struct rte_event_timer_adapter *adptr)
+{
+ struct otx2_tim_ring *tim_ring = adptr->data->adapter_priv;
+ struct otx2_tim_evdev *dev = tim_priv_get();
+ struct tim_enable_rsp *rsp;
+ struct tim_ring_req *req;
+ int rc;
+
+ if (dev == NULL)
+ return -ENODEV;
+
+ req = otx2_mbox_alloc_msg_tim_enable_ring(dev->mbox);
+ req->ring = tim_ring->ring_id;
+
+ rc = otx2_mbox_process_msg(dev->mbox, (void **)&rsp);
+ if (rc < 0) {
+ tim_err_desc(rc);
+ goto fail;
+ }
+#ifdef RTE_ARM_EAL_RDTSC_USE_PMU
+ uint64_t tenns_stmp, tenns_diff;
+ uint64_t pmu_stmp;
+
+ pmu_stmp = rte_rdtsc();
+ asm volatile("mrs %0, cntvct_el0" : "=r" (tenns_stmp));
+
+ tenns_diff = tenns_stmp - rsp->timestarted;
+ pmu_stmp = pmu_stmp - (NSEC2TICK(tenns_diff * 10, rte_get_timer_hz()));
+ tim_ring->ring_start_cyc = pmu_stmp;
+#else
+ tim_ring->ring_start_cyc = rsp->timestarted;
+#endif
+ tim_ring->tck_int = NSEC2TICK(tim_ring->tck_nsec, rte_get_timer_hz());
+ tim_ring->tot_int = tim_ring->tck_int * tim_ring->nb_bkts;
+ tim_ring->fast_div = rte_reciprocal_value_u64(tim_ring->tck_int);
+
+ otx2_tim_calibrate_start_tsc(tim_ring);
+
+fail:
+ return rc;
+}
+
+static int
+otx2_tim_ring_stop(const struct rte_event_timer_adapter *adptr)
+{
+ struct otx2_tim_ring *tim_ring = adptr->data->adapter_priv;
+ struct otx2_tim_evdev *dev = tim_priv_get();
+ struct tim_ring_req *req;
+ int rc;
+
+ if (dev == NULL)
+ return -ENODEV;
+
+ req = otx2_mbox_alloc_msg_tim_disable_ring(dev->mbox);
+ req->ring = tim_ring->ring_id;
+
+ rc = otx2_mbox_process(dev->mbox);
+ if (rc < 0) {
+ tim_err_desc(rc);
+ rc = -EBUSY;
+ }
+
+ return rc;
+}
+
static int
otx2_tim_ring_free(struct rte_event_timer_adapter *adptr)
{
struct otx2_tim_evdev *dev = tim_priv_get();
RTE_SET_USED(flags);
+
if (dev == NULL)
return -ENODEV;
otx2_tim_ops.init = otx2_tim_ring_create;
otx2_tim_ops.uninit = otx2_tim_ring_free;
+ otx2_tim_ops.start = otx2_tim_ring_start;
+ otx2_tim_ops.stop = otx2_tim_ring_stop;
otx2_tim_ops.get_info = otx2_tim_ring_info_get;
if (dev->enable_stats) {
#define OTX2_TIM_DISABLE_NPA "tim_disable_npa"
#define OTX2_TIM_CHNK_SLOTS "tim_chnk_slots"
#define OTX2_TIM_STATS_ENA "tim_stats_ena"
+#define OTX2_TIM_RINGS_LMT "tim_rings_lmt"
+#define OTX2_TIM_RING_CTL "tim_ring_ctl"
+
+static void
+tim_parse_ring_param(char *value, void *opaque)
+{
+ struct otx2_tim_evdev *dev = opaque;
+ struct otx2_tim_ctl ring_ctl = {0};
+ char *tok = strtok(value, "-");
+ struct otx2_tim_ctl *old_ptr;
+ uint16_t *val;
+
+ val = (uint16_t *)&ring_ctl;
+
+ if (!strlen(value))
+ return;
+
+ while (tok != NULL) {
+ *val = atoi(tok);
+ tok = strtok(NULL, "-");
+ val++;
+ }
+
+ if (val != (&ring_ctl.enable_stats + 1)) {
+ otx2_err(
+ "Invalid ring param expected [ring-chunk_sz-disable_npa-enable_stats]");
+ return;
+ }
+
+ dev->ring_ctl_cnt++;
+ old_ptr = dev->ring_ctl_data;
+ dev->ring_ctl_data = rte_realloc(dev->ring_ctl_data,
+ sizeof(struct otx2_tim_ctl) *
+ dev->ring_ctl_cnt, 0);
+ if (dev->ring_ctl_data == NULL) {
+ dev->ring_ctl_data = old_ptr;
+ dev->ring_ctl_cnt--;
+ return;
+ }
+
+ dev->ring_ctl_data[dev->ring_ctl_cnt - 1] = ring_ctl;
+}
+
+static void
+tim_parse_ring_ctl_list(const char *value, void *opaque)
+{
+ char *s = strdup(value);
+ char *start = NULL;
+ char *end = NULL;
+ char *f = s;
+
+ while (*s) {
+ if (*s == '[')
+ start = s;
+ else if (*s == ']')
+ end = s;
+
+ if (start && start < end) {
+ *end = 0;
+ tim_parse_ring_param(start + 1, opaque);
+ start = end;
+ s = end;
+ }
+ s++;
+ }
+
+ free(f);
+}
+
+static int
+tim_parse_kvargs_dict(const char *key, const char *value, void *opaque)
+{
+ RTE_SET_USED(key);
+
+ /* Dict format [ring-chunk_sz-disable_npa-enable_stats] use '-' as ','
+ * isn't allowed. 0 represents default.
+ */
+ tim_parse_ring_ctl_list(value, opaque);
+
+ return 0;
+}
static void
tim_parse_devargs(struct rte_devargs *devargs, struct otx2_tim_evdev *dev)
&parse_kvargs_value, &dev->chunk_slots);
rte_kvargs_process(kvlist, OTX2_TIM_STATS_ENA, &parse_kvargs_flag,
&dev->enable_stats);
+ rte_kvargs_process(kvlist, OTX2_TIM_RINGS_LMT, &parse_kvargs_value,
+ &dev->min_ring_cnt);
+ rte_kvargs_process(kvlist, OTX2_TIM_RING_CTL,
+ &tim_parse_kvargs_dict, &dev);
+
+ rte_kvargs_free(kvlist);
}
void
goto mz_free;
}
- dev->nb_rings = rsrc_cnt->tim;
+ dev->nb_rings = dev->min_ring_cnt ?
+ RTE_MIN(dev->min_ring_cnt, rsrc_cnt->tim) : rsrc_cnt->tim;
if (!dev->nb_rings) {
otx2_tim_dbg("No TIM Logical functions provisioned.");
git.droids-corp.org / dpdk.git / blobdiff