#include "mlx5_utils.h"
-
-/********************* MLX5 list ************************/
-
-static struct mlx5_list_entry *
-mlx5_list_default_create_cb(struct mlx5_list *list,
- struct mlx5_list_entry *entry __rte_unused,
- void *ctx __rte_unused)
-{
- return mlx5_malloc(MLX5_MEM_ZERO, list->entry_sz, 0, SOCKET_ID_ANY);
-}
-
-static void
-mlx5_list_default_remove_cb(struct mlx5_list *list __rte_unused,
- struct mlx5_list_entry *entry)
-{
- mlx5_free(entry);
-}
-
-int
-mlx5_list_create(struct mlx5_list *list, const char *name,
- uint32_t entry_size, void *ctx,
- mlx5_list_create_cb cb_create,
- mlx5_list_match_cb cb_match,
- mlx5_list_remove_cb cb_remove)
-{
- MLX5_ASSERT(list);
- if (!cb_match || (!cb_create ^ !cb_remove))
- return -1;
- if (name)
- snprintf(list->name, sizeof(list->name), "%s", name);
- list->entry_sz = entry_size;
- list->ctx = ctx;
- list->cb_create = cb_create ? cb_create : mlx5_list_default_create_cb;
- list->cb_match = cb_match;
- list->cb_remove = cb_remove ? cb_remove : mlx5_list_default_remove_cb;
- rte_rwlock_init(&list->lock);
- DRV_LOG(DEBUG, "mlx5 list %s initialized.", list->name);
- LIST_INIT(&list->head);
- return 0;
-}
-
-static struct mlx5_list_entry *
-__list_lookup(struct mlx5_list *list, void *ctx, bool reuse)
-{
- struct mlx5_list_entry *entry;
-
- LIST_FOREACH(entry, &list->head, next) {
- if (list->cb_match(list, entry, ctx))
- continue;
- if (reuse) {
- __atomic_add_fetch(&entry->ref_cnt, 1,
- __ATOMIC_RELAXED);
- DRV_LOG(DEBUG, "mlx5 list %s entry %p ref++: %u.",
- list->name, (void *)entry, entry->ref_cnt);
- }
- break;
- }
- return entry;
-}
-
-static struct mlx5_list_entry *
-list_lookup(struct mlx5_list *list, void *ctx, bool reuse)
-{
- struct mlx5_list_entry *entry;
-
- rte_rwlock_read_lock(&list->lock);
- entry = __list_lookup(list, ctx, reuse);
- rte_rwlock_read_unlock(&list->lock);
- return entry;
-}
-
-struct mlx5_list_entry *
-mlx5_list_lookup(struct mlx5_list *list, void *ctx)
-{
- return list_lookup(list, ctx, false);
-}
-
-struct mlx5_list_entry *
-mlx5_list_register(struct mlx5_list *list, void *ctx)
-{
- struct mlx5_list_entry *entry;
- uint32_t prev_gen_cnt = 0;
-
- MLX5_ASSERT(list);
- prev_gen_cnt = __atomic_load_n(&list->gen_cnt, __ATOMIC_ACQUIRE);
- /* Lookup with read lock, reuse if found. */
- entry = list_lookup(list, ctx, true);
- if (entry)
- return entry;
- /* Not found, append with write lock - block read from other threads. */
- rte_rwlock_write_lock(&list->lock);
- /* If list changed by other threads before lock, search again. */
- if (prev_gen_cnt != __atomic_load_n(&list->gen_cnt, __ATOMIC_ACQUIRE)) {
- /* Lookup and reuse w/o read lock. */
- entry = __list_lookup(list, ctx, true);
- if (entry)
- goto done;
- }
- entry = list->cb_create(list, entry, ctx);
- if (!entry) {
- DRV_LOG(ERR, "Failed to init mlx5 list %s entry %p.",
- list->name, (void *)entry);
- goto done;
- }
- entry->ref_cnt = 1;
- LIST_INSERT_HEAD(&list->head, entry, next);
- __atomic_add_fetch(&list->gen_cnt, 1, __ATOMIC_RELEASE);
- __atomic_add_fetch(&list->count, 1, __ATOMIC_ACQUIRE);
- DRV_LOG(DEBUG, "mlx5 list %s entry %p new: %u.",
- list->name, (void *)entry, entry->ref_cnt);
-done:
- rte_rwlock_write_unlock(&list->lock);
- return entry;
-}
-
-int
-mlx5_list_unregister(struct mlx5_list *list,
- struct mlx5_list_entry *entry)
-{
- rte_rwlock_write_lock(&list->lock);
- MLX5_ASSERT(entry && entry->next.le_prev);
- DRV_LOG(DEBUG, "mlx5 list %s entry %p ref--: %u.",
- list->name, (void *)entry, entry->ref_cnt);
- if (--entry->ref_cnt) {
- rte_rwlock_write_unlock(&list->lock);
- return 1;
- }
- __atomic_add_fetch(&list->gen_cnt, 1, __ATOMIC_ACQUIRE);
- __atomic_sub_fetch(&list->count, 1, __ATOMIC_ACQUIRE);
- LIST_REMOVE(entry, next);
- list->cb_remove(list, entry);
- rte_rwlock_write_unlock(&list->lock);
- DRV_LOG(DEBUG, "mlx5 list %s entry %p removed.",
- list->name, (void *)entry);
- return 0;
-}
-
-void
-mlx5_list_destroy(struct mlx5_list *list)
-{
- struct mlx5_list_entry *entry;
-
- MLX5_ASSERT(list);
- /* no LIST_FOREACH_SAFE, using while instead */
- while (!LIST_EMPTY(&list->head)) {
- entry = LIST_FIRST(&list->head);
- LIST_REMOVE(entry, next);
- list->cb_remove(list, entry);
- DRV_LOG(DEBUG, "mlx5 list %s entry %p destroyed.",
- list->name, (void *)entry);
- }
- memset(list, 0, sizeof(*list));
-}
-
-uint32_t
-mlx5_list_get_entry_num(struct mlx5_list *list)
-{
- MLX5_ASSERT(list);
- return __atomic_load_n(&list->count, __ATOMIC_RELAXED);
-}
-
/********************* Indexed pool **********************/
static inline void
/* Enqueue half of the index to global. */
ts_idx = mlx5_trunk_idx_offset_get(pool, trunk_idx) + 1;
fetch_size = trunk->free >> 1;
+ if (fetch_size > pool->cfg.per_core_cache)
+ fetch_size = trunk->free - pool->cfg.per_core_cache;
for (i = 0; i < fetch_size; i++)
lc->idx[i] = ts_idx + i;
lc->len = fetch_size;
rte_spinlock_unlock(&tbl->sl);
return ret;
}
-
-int32_t
-mlx5_l3t_prepare_entry(struct mlx5_l3t_tbl *tbl, uint32_t idx,
- union mlx5_l3t_data *data,
- mlx5_l3t_alloc_callback_fn cb, void *ctx)
-{
- int32_t ret;
-
- rte_spinlock_lock(&tbl->sl);
- /* Check if entry data is ready. */
- ret = __l3t_get_entry(tbl, idx, data);
- if (!ret) {
- switch (tbl->type) {
- case MLX5_L3T_TYPE_WORD:
- if (data->word)
- goto out;
- break;
- case MLX5_L3T_TYPE_DWORD:
- if (data->dword)
- goto out;
- break;
- case MLX5_L3T_TYPE_QWORD:
- if (data->qword)
- goto out;
- break;
- default:
- if (data->ptr)
- goto out;
- break;
- }
- }
- /* Entry data is not ready, use user callback to create it. */
- ret = cb(ctx, data);
- if (ret)
- goto out;
- /* Save the new allocated data to entry. */
- ret = __l3t_set_entry(tbl, idx, data);
-out:
- rte_spinlock_unlock(&tbl->sl);
- return ret;
-}
git.droids-corp.org / dpdk.git / blobdiff