*/
#include <rte_malloc.h>
-#include <rte_hash_crc.h>
#include <mlx5_malloc.h>
#include "mlx5_utils.h"
-/********************* Hash List **********************/
-
-static struct mlx5_hlist_entry *
-mlx5_hlist_default_create_cb(struct mlx5_hlist *h, uint64_t key __rte_unused,
- void *ctx __rte_unused)
-{
- return mlx5_malloc(MLX5_MEM_ZERO, h->entry_sz, 0, SOCKET_ID_ANY);
-}
-
-static void
-mlx5_hlist_default_remove_cb(struct mlx5_hlist *h __rte_unused,
- struct mlx5_hlist_entry *entry)
-{
- mlx5_free(entry);
-}
-
-struct mlx5_hlist *
-mlx5_hlist_create(const char *name, uint32_t size, uint32_t entry_size,
- uint32_t flags, mlx5_hlist_create_cb cb_create,
- mlx5_hlist_match_cb cb_match, mlx5_hlist_remove_cb cb_remove)
-{
- struct mlx5_hlist *h;
- uint32_t act_size;
- uint32_t alloc_size;
- uint32_t i;
-
- if (!size || !cb_match || (!cb_create ^ !cb_remove))
- return NULL;
- /* Align to the next power of 2, 32bits integer is enough now. */
- if (!rte_is_power_of_2(size)) {
- act_size = rte_align32pow2(size);
- DRV_LOG(WARNING, "Size 0x%" PRIX32 " is not power of 2, will "
- "be aligned to 0x%" PRIX32 ".", size, act_size);
- } else {
- act_size = size;
- }
- alloc_size = sizeof(struct mlx5_hlist) +
- sizeof(struct mlx5_hlist_bucket) * act_size;
- /* Using zmalloc, then no need to initialize the heads. */
- h = mlx5_malloc(MLX5_MEM_ZERO, alloc_size, RTE_CACHE_LINE_SIZE,
- SOCKET_ID_ANY);
- if (!h) {
- DRV_LOG(ERR, "No memory for hash list %s creation",
- name ? name : "None");
- return NULL;
- }
- if (name)
- snprintf(h->name, MLX5_HLIST_NAMESIZE, "%s", name);
- h->table_sz = act_size;
- h->mask = act_size - 1;
- h->entry_sz = entry_size;
- h->direct_key = !!(flags & MLX5_HLIST_DIRECT_KEY);
- h->write_most = !!(flags & MLX5_HLIST_WRITE_MOST);
- h->cb_create = cb_create ? cb_create : mlx5_hlist_default_create_cb;
- h->cb_match = cb_match;
- h->cb_remove = cb_remove ? cb_remove : mlx5_hlist_default_remove_cb;
- for (i = 0; i < act_size; i++)
- rte_rwlock_init(&h->buckets[i].lock);
- DRV_LOG(DEBUG, "Hash list with %s size 0x%" PRIX32 " is created.",
- h->name, act_size);
- return h;
-}
-
-static struct mlx5_hlist_entry *
-__hlist_lookup(struct mlx5_hlist *h, uint64_t key, uint32_t idx,
- void *ctx, bool reuse)
-{
- struct mlx5_hlist_head *first;
- struct mlx5_hlist_entry *node;
-
- MLX5_ASSERT(h);
- first = &h->buckets[idx].head;
- LIST_FOREACH(node, first, next) {
- if (!h->cb_match(h, node, key, ctx)) {
- if (reuse) {
- __atomic_add_fetch(&node->ref_cnt, 1,
- __ATOMIC_RELAXED);
- DRV_LOG(DEBUG, "Hash list %s entry %p "
- "reuse: %u.",
- h->name, (void *)node, node->ref_cnt);
- }
- break;
- }
- }
- return node;
-}
-
-static struct mlx5_hlist_entry *
-hlist_lookup(struct mlx5_hlist *h, uint64_t key, uint32_t idx,
- void *ctx, bool reuse)
-{
- struct mlx5_hlist_entry *node;
-
- MLX5_ASSERT(h);
- rte_rwlock_read_lock(&h->buckets[idx].lock);
- node = __hlist_lookup(h, key, idx, ctx, reuse);
- rte_rwlock_read_unlock(&h->buckets[idx].lock);
- return node;
-}
-
-struct mlx5_hlist_entry *
-mlx5_hlist_lookup(struct mlx5_hlist *h, uint64_t key, void *ctx)
-{
- uint32_t idx;
-
- if (h->direct_key)
- idx = (uint32_t)(key & h->mask);
- else
- idx = rte_hash_crc_8byte(key, 0) & h->mask;
- return hlist_lookup(h, key, idx, ctx, false);
-}
-
-struct mlx5_hlist_entry*
-mlx5_hlist_register(struct mlx5_hlist *h, uint64_t key, void *ctx)
-{
- uint32_t idx;
- struct mlx5_hlist_head *first;
- struct mlx5_hlist_bucket *b;
- struct mlx5_hlist_entry *entry;
- uint32_t prev_gen_cnt = 0;
-
- if (h->direct_key)
- idx = (uint32_t)(key & h->mask);
- else
- idx = rte_hash_crc_8byte(key, 0) & h->mask;
- MLX5_ASSERT(h);
- b = &h->buckets[idx];
- /* Use write lock directly for write-most list. */
- if (!h->write_most) {
- prev_gen_cnt = __atomic_load_n(&b->gen_cnt, __ATOMIC_ACQUIRE);
- entry = hlist_lookup(h, key, idx, ctx, true);
- if (entry)
- return entry;
- }
- rte_rwlock_write_lock(&b->lock);
- /* Check if the list changed by other threads. */
- if (h->write_most ||
- prev_gen_cnt != __atomic_load_n(&b->gen_cnt, __ATOMIC_ACQUIRE)) {
- entry = __hlist_lookup(h, key, idx, ctx, true);
- if (entry)
- goto done;
- }
- first = &b->head;
- entry = h->cb_create(h, key, ctx);
- if (!entry) {
- rte_errno = ENOMEM;
- DRV_LOG(DEBUG, "Can't allocate hash list %s entry.", h->name);
- goto done;
- }
- entry->idx = idx;
- entry->ref_cnt = 1;
- LIST_INSERT_HEAD(first, entry, next);
- __atomic_add_fetch(&b->gen_cnt, 1, __ATOMIC_ACQ_REL);
- DRV_LOG(DEBUG, "Hash list %s entry %p new: %u.",
- h->name, (void *)entry, entry->ref_cnt);
-done:
- rte_rwlock_write_unlock(&b->lock);
- return entry;
-}
-
-int
-mlx5_hlist_unregister(struct mlx5_hlist *h, struct mlx5_hlist_entry *entry)
-{
- uint32_t idx = entry->idx;
-
- rte_rwlock_write_lock(&h->buckets[idx].lock);
- MLX5_ASSERT(entry && entry->ref_cnt && entry->next.le_prev);
- DRV_LOG(DEBUG, "Hash list %s entry %p deref: %u.",
- h->name, (void *)entry, entry->ref_cnt);
- if (--entry->ref_cnt) {
- rte_rwlock_write_unlock(&h->buckets[idx].lock);
- return 1;
- }
- LIST_REMOVE(entry, next);
- /* Set to NULL to get rid of removing action for more than once. */
- entry->next.le_prev = NULL;
- h->cb_remove(h, entry);
- rte_rwlock_write_unlock(&h->buckets[idx].lock);
- DRV_LOG(DEBUG, "Hash list %s entry %p removed.",
- h->name, (void *)entry);
- return 0;
-}
-
-void
-mlx5_hlist_destroy(struct mlx5_hlist *h)
-{
- uint32_t idx;
- struct mlx5_hlist_entry *entry;
-
- MLX5_ASSERT(h);
- for (idx = 0; idx < h->table_sz; ++idx) {
- /* No LIST_FOREACH_SAFE, using while instead. */
- while (!LIST_EMPTY(&h->buckets[idx].head)) {
- entry = LIST_FIRST(&h->buckets[idx].head);
- LIST_REMOVE(entry, next);
- /*
- * The owner of whole element which contains data entry
- * is the user, so it's the user's duty to do the clean
- * up and the free work because someone may not put the
- * hlist entry at the beginning(suggested to locate at
- * the beginning). Or else the default free function
- * will be used.
- */
- h->cb_remove(h, entry);
- }
- }
- mlx5_free(h);
-}
-
-/********************* Cache list ************************/
-
-static struct mlx5_cache_entry *
-mlx5_clist_default_create_cb(struct mlx5_cache_list *list,
- struct mlx5_cache_entry *entry __rte_unused,
- void *ctx __rte_unused)
-{
- return mlx5_malloc(MLX5_MEM_ZERO, list->entry_sz, 0, SOCKET_ID_ANY);
-}
-
-static void
-mlx5_clist_default_remove_cb(struct mlx5_cache_list *list __rte_unused,
- struct mlx5_cache_entry *entry)
-{
- mlx5_free(entry);
-}
-
-int
-mlx5_cache_list_init(struct mlx5_cache_list *list, const char *name,
- uint32_t entry_size, void *ctx,
- mlx5_cache_create_cb cb_create,
- mlx5_cache_match_cb cb_match,
- mlx5_cache_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_clist_default_create_cb;
- list->cb_match = cb_match;
- list->cb_remove = cb_remove ? cb_remove : mlx5_clist_default_remove_cb;
- rte_rwlock_init(&list->lock);
- DRV_LOG(DEBUG, "Cache list %s initialized.", list->name);
- LIST_INIT(&list->head);
- return 0;
-}
-
-static struct mlx5_cache_entry *
-__cache_lookup(struct mlx5_cache_list *list, void *ctx, bool reuse)
-{
- struct mlx5_cache_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, "Cache list %s entry %p ref++: %u.",
- list->name, (void *)entry, entry->ref_cnt);
- }
- break;
- }
- return entry;
-}
-
-static struct mlx5_cache_entry *
-cache_lookup(struct mlx5_cache_list *list, void *ctx, bool reuse)
-{
- struct mlx5_cache_entry *entry;
-
- rte_rwlock_read_lock(&list->lock);
- entry = __cache_lookup(list, ctx, reuse);
- rte_rwlock_read_unlock(&list->lock);
- return entry;
-}
-
-struct mlx5_cache_entry *
-mlx5_cache_lookup(struct mlx5_cache_list *list, void *ctx)
-{
- return cache_lookup(list, ctx, false);
-}
-
-struct mlx5_cache_entry *
-mlx5_cache_register(struct mlx5_cache_list *list, void *ctx)
-{
- struct mlx5_cache_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 = cache_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 = __cache_lookup(list, ctx, true);
- if (entry)
- goto done;
- }
- entry = list->cb_create(list, entry, ctx);
- if (!entry) {
- DRV_LOG(ERR, "Failed to init cache 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, "Cache list %s entry %p new: %u.",
- list->name, (void *)entry, entry->ref_cnt);
-done:
- rte_rwlock_write_unlock(&list->lock);
- return entry;
-}
-
-int
-mlx5_cache_unregister(struct mlx5_cache_list *list,
- struct mlx5_cache_entry *entry)
-{
- rte_rwlock_write_lock(&list->lock);
- MLX5_ASSERT(entry && entry->next.le_prev);
- DRV_LOG(DEBUG, "Cache 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, "Cache list %s entry %p removed.",
- list->name, (void *)entry);
- return 0;
-}
-
-void
-mlx5_cache_list_destroy(struct mlx5_cache_list *list)
-{
- struct mlx5_cache_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, "Cache list %s entry %p destroyed.",
- list->name, (void *)entry);
- }
- memset(list, 0, sizeof(*list));
-}
-
-uint32_t
-mlx5_cache_list_get_entry_num(struct mlx5_cache_list *list)
-{
- MLX5_ASSERT(list);
- return __atomic_load_n(&list->count, __ATOMIC_RELAXED);
-}
-
/********************* Indexed pool **********************/
static inline void
mlx5_ipool_lock(struct mlx5_indexed_pool *pool)
{
if (pool->cfg.need_lock)
- rte_spinlock_lock(&pool->lock);
+ rte_spinlock_lock(&pool->rsz_lock);
}
static inline void
mlx5_ipool_unlock(struct mlx5_indexed_pool *pool)
{
if (pool->cfg.need_lock)
- rte_spinlock_unlock(&pool->lock);
+ rte_spinlock_unlock(&pool->rsz_lock);
}
static inline uint32_t
uint32_t i;
if (!cfg || (!cfg->malloc ^ !cfg->free) ||
+ (cfg->per_core_cache && cfg->release_mem_en) ||
(cfg->trunk_size && ((cfg->trunk_size & (cfg->trunk_size - 1)) ||
((__builtin_ffs(cfg->trunk_size) + TRUNK_IDX_BITS) > 32))))
return NULL;
pool->cfg.malloc = mlx5_malloc;
pool->cfg.free = mlx5_free;
}
- pool->free_list = TRUNK_INVALID;
if (pool->cfg.need_lock)
- rte_spinlock_init(&pool->lock);
+ rte_spinlock_init(&pool->rsz_lock);
/*
* Initialize the dynamic grow trunk size lookup table to have a quick
* lookup for the trunk entry index offset.
if (i > 0)
pool->grow_tbl[i] += pool->grow_tbl[i - 1];
}
+ if (!pool->cfg.max_idx)
+ pool->cfg.max_idx =
+ mlx5_trunk_idx_offset_get(pool, TRUNK_MAX_IDX + 1);
+ if (!cfg->per_core_cache)
+ pool->free_list = TRUNK_INVALID;
+ rte_spinlock_init(&pool->lcore_lock);
return pool;
}
size_t trunk_size = 0;
size_t data_size;
size_t bmp_size;
- uint32_t idx;
+ uint32_t idx, cur_max_idx, i;
- if (pool->n_trunk_valid == TRUNK_MAX_IDX)
+ cur_max_idx = mlx5_trunk_idx_offset_get(pool, pool->n_trunk_valid);
+ if (pool->n_trunk_valid == TRUNK_MAX_IDX ||
+ cur_max_idx >= pool->cfg.max_idx)
return -ENOMEM;
if (pool->n_trunk_valid == pool->n_trunk) {
/* No free trunk flags, expand trunk list. */
trunk->bmp = rte_bitmap_init_with_all_set(data_size, &trunk->data
[RTE_CACHE_LINE_ROUNDUP(data_size * pool->cfg.size)],
bmp_size);
+ /* Clear the overhead bits in the trunk if it happens. */
+ if (cur_max_idx + data_size > pool->cfg.max_idx) {
+ for (i = pool->cfg.max_idx - cur_max_idx; i < data_size; i++)
+ rte_bitmap_clear(trunk->bmp, i);
+ }
MLX5_ASSERT(trunk->bmp);
pool->n_trunk_valid++;
#ifdef POOL_DEBUG
return 0;
}
+static inline struct mlx5_indexed_cache *
+mlx5_ipool_update_global_cache(struct mlx5_indexed_pool *pool, int cidx)
+{
+ struct mlx5_indexed_cache *gc, *lc, *olc = NULL;
+
+ lc = pool->cache[cidx]->lc;
+ gc = __atomic_load_n(&pool->gc, __ATOMIC_RELAXED);
+ if (gc && lc != gc) {
+ mlx5_ipool_lock(pool);
+ if (lc && !(--lc->ref_cnt))
+ olc = lc;
+ lc = pool->gc;
+ lc->ref_cnt++;
+ pool->cache[cidx]->lc = lc;
+ mlx5_ipool_unlock(pool);
+ if (olc)
+ pool->cfg.free(olc);
+ }
+ return lc;
+}
+
+static uint32_t
+mlx5_ipool_allocate_from_global(struct mlx5_indexed_pool *pool, int cidx)
+{
+ struct mlx5_indexed_trunk *trunk;
+ struct mlx5_indexed_cache *p, *lc, *olc = NULL;
+ size_t trunk_size = 0;
+ size_t data_size;
+ uint32_t cur_max_idx, trunk_idx, trunk_n;
+ uint32_t fetch_size, ts_idx, i;
+ int n_grow;
+
+check_again:
+ p = NULL;
+ fetch_size = 0;
+ /*
+ * Fetch new index from global if possible. First round local
+ * cache will be NULL.
+ */
+ lc = pool->cache[cidx]->lc;
+ mlx5_ipool_lock(pool);
+ /* Try to update local cache first. */
+ if (likely(pool->gc)) {
+ if (lc != pool->gc) {
+ if (lc && !(--lc->ref_cnt))
+ olc = lc;
+ lc = pool->gc;
+ lc->ref_cnt++;
+ pool->cache[cidx]->lc = lc;
+ }
+ if (lc->len) {
+ /* Use the updated local cache to fetch index. */
+ fetch_size = pool->cfg.per_core_cache >> 2;
+ if (lc->len < fetch_size)
+ fetch_size = lc->len;
+ lc->len -= fetch_size;
+ memcpy(pool->cache[cidx]->idx, &lc->idx[lc->len],
+ sizeof(uint32_t) * fetch_size);
+ }
+ }
+ mlx5_ipool_unlock(pool);
+ if (unlikely(olc)) {
+ pool->cfg.free(olc);
+ olc = NULL;
+ }
+ if (fetch_size) {
+ pool->cache[cidx]->len = fetch_size - 1;
+ return pool->cache[cidx]->idx[pool->cache[cidx]->len];
+ }
+ trunk_idx = lc ? __atomic_load_n(&lc->n_trunk_valid,
+ __ATOMIC_ACQUIRE) : 0;
+ trunk_n = lc ? lc->n_trunk : 0;
+ cur_max_idx = mlx5_trunk_idx_offset_get(pool, trunk_idx);
+ /* Check if index reach maximum. */
+ if (trunk_idx == TRUNK_MAX_IDX ||
+ cur_max_idx >= pool->cfg.max_idx)
+ return 0;
+ /* No enough space in trunk array, resize the trunks array. */
+ if (trunk_idx == trunk_n) {
+ n_grow = trunk_idx ? trunk_idx :
+ RTE_CACHE_LINE_SIZE / sizeof(void *);
+ cur_max_idx = mlx5_trunk_idx_offset_get(pool, trunk_n + n_grow);
+ /* Resize the trunk array. */
+ p = pool->cfg.malloc(0, ((trunk_idx + n_grow) *
+ sizeof(struct mlx5_indexed_trunk *)) +
+ (cur_max_idx * sizeof(uint32_t)) + sizeof(*p),
+ RTE_CACHE_LINE_SIZE, rte_socket_id());
+ if (!p)
+ return 0;
+ p->trunks = (struct mlx5_indexed_trunk **)&p->idx[cur_max_idx];
+ if (lc)
+ memcpy(p->trunks, lc->trunks, trunk_idx *
+ sizeof(struct mlx5_indexed_trunk *));
+#ifdef RTE_LIBRTE_MLX5_DEBUG
+ memset(RTE_PTR_ADD(p->trunks, trunk_idx * sizeof(void *)), 0,
+ n_grow * sizeof(void *));
+#endif
+ p->n_trunk_valid = trunk_idx;
+ p->n_trunk = trunk_n + n_grow;
+ p->len = 0;
+ }
+ /* Prepare the new trunk. */
+ trunk_size = sizeof(*trunk);
+ data_size = mlx5_trunk_size_get(pool, trunk_idx);
+ trunk_size += RTE_CACHE_LINE_ROUNDUP(data_size * pool->cfg.size);
+ trunk = pool->cfg.malloc(0, trunk_size,
+ RTE_CACHE_LINE_SIZE, rte_socket_id());
+ if (unlikely(!trunk)) {
+ pool->cfg.free(p);
+ return 0;
+ }
+ trunk->idx = trunk_idx;
+ trunk->free = data_size;
+ mlx5_ipool_lock(pool);
+ /*
+ * Double check if trunks has been updated or have available index.
+ * During the new trunk allocate, index may still be flushed to the
+ * global cache. So also need to check the pool->gc->len.
+ */
+ if (pool->gc && (lc != pool->gc ||
+ lc->n_trunk_valid != trunk_idx ||
+ pool->gc->len)) {
+ mlx5_ipool_unlock(pool);
+ if (p)
+ pool->cfg.free(p);
+ pool->cfg.free(trunk);
+ goto check_again;
+ }
+ /* Resize the trunk array and update local cache first. */
+ if (p) {
+ if (lc && !(--lc->ref_cnt))
+ olc = lc;
+ lc = p;
+ lc->ref_cnt = 1;
+ pool->cache[cidx]->lc = lc;
+ __atomic_store_n(&pool->gc, p, __ATOMIC_RELAXED);
+ }
+ /* Add trunk to trunks array. */
+ lc->trunks[trunk_idx] = trunk;
+ __atomic_fetch_add(&lc->n_trunk_valid, 1, __ATOMIC_RELAXED);
+ /* Enqueue half of the index to global. */
+ ts_idx = mlx5_trunk_idx_offset_get(pool, trunk_idx) + 1;
+ fetch_size = trunk->free >> 1;
+ for (i = 0; i < fetch_size; i++)
+ lc->idx[i] = ts_idx + i;
+ lc->len = fetch_size;
+ mlx5_ipool_unlock(pool);
+ /* Copy left half - 1 to local cache index array. */
+ pool->cache[cidx]->len = trunk->free - fetch_size - 1;
+ ts_idx += fetch_size;
+ for (i = 0; i < pool->cache[cidx]->len; i++)
+ pool->cache[cidx]->idx[i] = ts_idx + i;
+ if (olc)
+ pool->cfg.free(olc);
+ return ts_idx + i;
+}
+
+static void *
+_mlx5_ipool_get_cache(struct mlx5_indexed_pool *pool, int cidx, uint32_t idx)
+{
+ struct mlx5_indexed_trunk *trunk;
+ struct mlx5_indexed_cache *lc;
+ uint32_t trunk_idx;
+ uint32_t entry_idx;
+
+ MLX5_ASSERT(idx);
+ if (unlikely(!pool->cache[cidx])) {
+ pool->cache[cidx] = pool->cfg.malloc(MLX5_MEM_ZERO,
+ sizeof(struct mlx5_ipool_per_lcore) +
+ (pool->cfg.per_core_cache * sizeof(uint32_t)),
+ RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
+ if (!pool->cache[cidx]) {
+ DRV_LOG(ERR, "Ipool cache%d allocate failed\n", cidx);
+ return NULL;
+ }
+ }
+ lc = mlx5_ipool_update_global_cache(pool, cidx);
+ idx -= 1;
+ trunk_idx = mlx5_trunk_idx_get(pool, idx);
+ trunk = lc->trunks[trunk_idx];
+ MLX5_ASSERT(trunk);
+ entry_idx = idx - mlx5_trunk_idx_offset_get(pool, trunk_idx);
+ return &trunk->data[entry_idx * pool->cfg.size];
+}
+
+static void *
+mlx5_ipool_get_cache(struct mlx5_indexed_pool *pool, uint32_t idx)
+{
+ void *entry;
+ int cidx;
+
+ cidx = rte_lcore_index(rte_lcore_id());
+ if (unlikely(cidx == -1)) {
+ cidx = RTE_MAX_LCORE;
+ rte_spinlock_lock(&pool->lcore_lock);
+ }
+ entry = _mlx5_ipool_get_cache(pool, cidx, idx);
+ if (unlikely(cidx == RTE_MAX_LCORE))
+ rte_spinlock_unlock(&pool->lcore_lock);
+ return entry;
+}
+
+
+static void *
+_mlx5_ipool_malloc_cache(struct mlx5_indexed_pool *pool, int cidx,
+ uint32_t *idx)
+{
+ if (unlikely(!pool->cache[cidx])) {
+ pool->cache[cidx] = pool->cfg.malloc(MLX5_MEM_ZERO,
+ sizeof(struct mlx5_ipool_per_lcore) +
+ (pool->cfg.per_core_cache * sizeof(uint32_t)),
+ RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
+ if (!pool->cache[cidx]) {
+ DRV_LOG(ERR, "Ipool cache%d allocate failed\n", cidx);
+ return NULL;
+ }
+ } else if (pool->cache[cidx]->len) {
+ pool->cache[cidx]->len--;
+ *idx = pool->cache[cidx]->idx[pool->cache[cidx]->len];
+ return _mlx5_ipool_get_cache(pool, cidx, *idx);
+ }
+ /* Not enough idx in global cache. Keep fetching from global. */
+ *idx = mlx5_ipool_allocate_from_global(pool, cidx);
+ if (unlikely(!(*idx)))
+ return NULL;
+ return _mlx5_ipool_get_cache(pool, cidx, *idx);
+}
+
+static void *
+mlx5_ipool_malloc_cache(struct mlx5_indexed_pool *pool, uint32_t *idx)
+{
+ void *entry;
+ int cidx;
+
+ cidx = rte_lcore_index(rte_lcore_id());
+ if (unlikely(cidx == -1)) {
+ cidx = RTE_MAX_LCORE;
+ rte_spinlock_lock(&pool->lcore_lock);
+ }
+ entry = _mlx5_ipool_malloc_cache(pool, cidx, idx);
+ if (unlikely(cidx == RTE_MAX_LCORE))
+ rte_spinlock_unlock(&pool->lcore_lock);
+ return entry;
+}
+
+static void
+_mlx5_ipool_free_cache(struct mlx5_indexed_pool *pool, int cidx, uint32_t idx)
+{
+ struct mlx5_ipool_per_lcore *ilc;
+ struct mlx5_indexed_cache *gc, *olc = NULL;
+ uint32_t reclaim_num = 0;
+
+ MLX5_ASSERT(idx);
+ /*
+ * When index was allocated on core A but freed on core B. In this
+ * case check if local cache on core B was allocated before.
+ */
+ if (unlikely(!pool->cache[cidx])) {
+ pool->cache[cidx] = pool->cfg.malloc(MLX5_MEM_ZERO,
+ sizeof(struct mlx5_ipool_per_lcore) +
+ (pool->cfg.per_core_cache * sizeof(uint32_t)),
+ RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
+ if (!pool->cache[cidx]) {
+ DRV_LOG(ERR, "Ipool cache%d allocate failed\n", cidx);
+ return;
+ }
+ }
+ /* Try to enqueue to local index cache. */
+ if (pool->cache[cidx]->len < pool->cfg.per_core_cache) {
+ pool->cache[cidx]->idx[pool->cache[cidx]->len] = idx;
+ pool->cache[cidx]->len++;
+ return;
+ }
+ ilc = pool->cache[cidx];
+ reclaim_num = pool->cfg.per_core_cache >> 2;
+ ilc->len -= reclaim_num;
+ /* Local index cache full, try with global index cache. */
+ mlx5_ipool_lock(pool);
+ gc = pool->gc;
+ if (ilc->lc != gc) {
+ if (!(--ilc->lc->ref_cnt))
+ olc = ilc->lc;
+ gc->ref_cnt++;
+ ilc->lc = gc;
+ }
+ memcpy(&gc->idx[gc->len], &ilc->idx[ilc->len],
+ reclaim_num * sizeof(uint32_t));
+ gc->len += reclaim_num;
+ mlx5_ipool_unlock(pool);
+ if (olc)
+ pool->cfg.free(olc);
+ pool->cache[cidx]->idx[pool->cache[cidx]->len] = idx;
+ pool->cache[cidx]->len++;
+}
+
+static void
+mlx5_ipool_free_cache(struct mlx5_indexed_pool *pool, uint32_t idx)
+{
+ int cidx;
+
+ cidx = rte_lcore_index(rte_lcore_id());
+ if (unlikely(cidx == -1)) {
+ cidx = RTE_MAX_LCORE;
+ rte_spinlock_lock(&pool->lcore_lock);
+ }
+ _mlx5_ipool_free_cache(pool, cidx, idx);
+ if (unlikely(cidx == RTE_MAX_LCORE))
+ rte_spinlock_unlock(&pool->lcore_lock);
+}
+
void *
mlx5_ipool_malloc(struct mlx5_indexed_pool *pool, uint32_t *idx)
{
uint32_t iidx = 0;
void *p;
+ if (pool->cfg.per_core_cache)
+ return mlx5_ipool_malloc_cache(pool, idx);
mlx5_ipool_lock(pool);
if (pool->free_list == TRUNK_INVALID) {
/* If no available trunks, grow new. */
if (!idx)
return;
+ if (pool->cfg.per_core_cache) {
+ mlx5_ipool_free_cache(pool, idx);
+ return;
+ }
idx -= 1;
mlx5_ipool_lock(pool);
trunk_idx = mlx5_trunk_idx_get(pool, idx);
if (!idx)
return NULL;
+ if (pool->cfg.per_core_cache)
+ return mlx5_ipool_get_cache(pool, idx);
idx -= 1;
mlx5_ipool_lock(pool);
trunk_idx = mlx5_trunk_idx_get(pool, idx);
int
mlx5_ipool_destroy(struct mlx5_indexed_pool *pool)
{
- struct mlx5_indexed_trunk **trunks;
- uint32_t i;
+ struct mlx5_indexed_trunk **trunks = NULL;
+ struct mlx5_indexed_cache *gc = pool->gc;
+ uint32_t i, n_trunk_valid = 0;
MLX5_ASSERT(pool);
mlx5_ipool_lock(pool);
- trunks = pool->trunks;
- for (i = 0; i < pool->n_trunk; i++) {
+ if (pool->cfg.per_core_cache) {
+ for (i = 0; i <= RTE_MAX_LCORE; i++) {
+ /*
+ * Free only old global cache. Pool gc will be
+ * freed at last.
+ */
+ if (pool->cache[i]) {
+ if (pool->cache[i]->lc &&
+ pool->cache[i]->lc != pool->gc &&
+ (!(--pool->cache[i]->lc->ref_cnt)))
+ pool->cfg.free(pool->cache[i]->lc);
+ pool->cfg.free(pool->cache[i]);
+ }
+ }
+ if (gc) {
+ trunks = gc->trunks;
+ n_trunk_valid = gc->n_trunk_valid;
+ }
+ } else {
+ gc = NULL;
+ trunks = pool->trunks;
+ n_trunk_valid = pool->n_trunk_valid;
+ }
+ for (i = 0; i < n_trunk_valid; i++) {
if (trunks[i])
pool->cfg.free(trunks[i]);
}
- if (!pool->trunks)
- pool->cfg.free(pool->trunks);
+ if (!gc && trunks)
+ pool->cfg.free(trunks);
+ if (gc)
+ pool->cfg.free(gc);
mlx5_ipool_unlock(pool);
mlx5_free(pool);
return 0;
}
+void
+mlx5_ipool_flush_cache(struct mlx5_indexed_pool *pool)
+{
+ uint32_t i, j;
+ struct mlx5_indexed_cache *gc;
+ struct rte_bitmap *ibmp;
+ uint32_t bmp_num, mem_size;
+
+ if (!pool->cfg.per_core_cache)
+ return;
+ gc = pool->gc;
+ if (!gc)
+ return;
+ /* Reset bmp. */
+ bmp_num = mlx5_trunk_idx_offset_get(pool, gc->n_trunk_valid);
+ mem_size = rte_bitmap_get_memory_footprint(bmp_num);
+ pool->bmp_mem = pool->cfg.malloc(MLX5_MEM_ZERO, mem_size,
+ RTE_CACHE_LINE_SIZE, rte_socket_id());
+ if (!pool->bmp_mem) {
+ DRV_LOG(ERR, "Ipool bitmap mem allocate failed.\n");
+ return;
+ }
+ ibmp = rte_bitmap_init_with_all_set(bmp_num, pool->bmp_mem, mem_size);
+ if (!ibmp) {
+ pool->cfg.free(pool->bmp_mem);
+ pool->bmp_mem = NULL;
+ DRV_LOG(ERR, "Ipool bitmap create failed.\n");
+ return;
+ }
+ pool->ibmp = ibmp;
+ /* Clear global cache. */
+ for (i = 0; i < gc->len; i++)
+ rte_bitmap_clear(ibmp, gc->idx[i] - 1);
+ /* Clear core cache. */
+ for (i = 0; i < RTE_MAX_LCORE + 1; i++) {
+ struct mlx5_ipool_per_lcore *ilc = pool->cache[i];
+
+ if (!ilc)
+ continue;
+ for (j = 0; j < ilc->len; j++)
+ rte_bitmap_clear(ibmp, ilc->idx[j] - 1);
+ }
+}
+
+static void *
+mlx5_ipool_get_next_cache(struct mlx5_indexed_pool *pool, uint32_t *pos)
+{
+ struct rte_bitmap *ibmp;
+ uint64_t slab = 0;
+ uint32_t iidx = *pos;
+
+ ibmp = pool->ibmp;
+ if (!ibmp || !rte_bitmap_scan(ibmp, &iidx, &slab)) {
+ if (pool->bmp_mem) {
+ pool->cfg.free(pool->bmp_mem);
+ pool->bmp_mem = NULL;
+ pool->ibmp = NULL;
+ }
+ return NULL;
+ }
+ iidx += __builtin_ctzll(slab);
+ rte_bitmap_clear(ibmp, iidx);
+ iidx++;
+ *pos = iidx;
+ return mlx5_ipool_get_cache(pool, iidx);
+}
+
+void *
+mlx5_ipool_get_next(struct mlx5_indexed_pool *pool, uint32_t *pos)
+{
+ uint32_t idx = *pos;
+ void *entry;
+
+ if (pool->cfg.per_core_cache)
+ return mlx5_ipool_get_next_cache(pool, pos);
+ while (idx <= mlx5_trunk_idx_offset_get(pool, pool->n_trunk)) {
+ entry = mlx5_ipool_get(pool, idx);
+ if (entry) {
+ *pos = idx;
+ return entry;
+ }
+ idx++;
+ }
+ return NULL;
+}
+
void
mlx5_ipool_dump(struct mlx5_indexed_pool *pool)
{
git.droids-corp.org / dpdk.git / blobdiff