diff options
Diffstat (limited to 'lib/librte_mempool/rte_mempool.c')
-rw-r--r-- | lib/librte_mempool/rte_mempool.c | 210 |
1 files changed, 6 insertions, 204 deletions
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c index 8c8b9f80..03e6b5f7 100644 --- a/lib/librte_mempool/rte_mempool.c +++ b/lib/librte_mempool/rte_mempool.c @@ -225,93 +225,6 @@ rte_mempool_calc_obj_size(uint32_t elt_size, uint32_t flags, return sz->total_size; } - -/* - * Internal function to calculate required memory chunk size shared - * by default implementation of the corresponding callback and - * deprecated external function. - */ -size_t -rte_mempool_calc_mem_size_helper(uint32_t elt_num, size_t total_elt_sz, - uint32_t pg_shift) -{ - size_t obj_per_page, pg_num, pg_sz; - - if (total_elt_sz == 0) - return 0; - - if (pg_shift == 0) - return total_elt_sz * elt_num; - - pg_sz = (size_t)1 << pg_shift; - obj_per_page = pg_sz / total_elt_sz; - if (obj_per_page == 0) - return RTE_ALIGN_CEIL(total_elt_sz, pg_sz) * elt_num; - - pg_num = (elt_num + obj_per_page - 1) / obj_per_page; - return pg_num << pg_shift; -} - -/* - * Calculate maximum amount of memory required to store given number of objects. - */ -size_t -rte_mempool_xmem_size(uint32_t elt_num, size_t total_elt_sz, uint32_t pg_shift, - __rte_unused unsigned int flags) -{ - return rte_mempool_calc_mem_size_helper(elt_num, total_elt_sz, - pg_shift); -} - -/* - * Calculate how much memory would be actually required with the - * given memory footprint to store required number of elements. - */ -ssize_t -rte_mempool_xmem_usage(__rte_unused void *vaddr, uint32_t elt_num, - size_t total_elt_sz, const rte_iova_t iova[], uint32_t pg_num, - uint32_t pg_shift, __rte_unused unsigned int flags) -{ - uint32_t elt_cnt = 0; - rte_iova_t start, end; - uint32_t iova_idx; - size_t pg_sz = (size_t)1 << pg_shift; - - /* if iova is NULL, assume contiguous memory */ - if (iova == NULL) { - start = 0; - end = pg_sz * pg_num; - iova_idx = pg_num; - } else { - start = iova[0]; - end = iova[0] + pg_sz; - iova_idx = 1; - } - while (elt_cnt < elt_num) { - - if (end - start >= total_elt_sz) { - /* enough contiguous memory, add an object */ - start += total_elt_sz; - elt_cnt++; - } else if (iova_idx < pg_num) { - /* no room to store one obj, add a page */ - if (end == iova[iova_idx]) { - end += pg_sz; - } else { - start = iova[iova_idx]; - end = iova[iova_idx] + pg_sz; - } - iova_idx++; - - } else { - /* no more page, return how many elements fit */ - return -(size_t)elt_cnt; - } - } - - return (size_t)iova_idx << pg_shift; -} - /* free a memchunk allocated with rte_memzone_reserve() */ static void rte_mempool_memchunk_mz_free(__rte_unused struct rte_mempool_memhdr *memhdr, @@ -423,63 +336,6 @@ fail: return ret; } -int -rte_mempool_populate_phys(struct rte_mempool *mp, char *vaddr, - phys_addr_t paddr, size_t len, rte_mempool_memchunk_free_cb_t *free_cb, - void *opaque) -{ - return rte_mempool_populate_iova(mp, vaddr, paddr, len, free_cb, opaque); -} - -/* Add objects in the pool, using a table of physical pages. Return the - * number of objects added, or a negative value on error. - */ -int -rte_mempool_populate_iova_tab(struct rte_mempool *mp, char *vaddr, - const rte_iova_t iova[], uint32_t pg_num, uint32_t pg_shift, - rte_mempool_memchunk_free_cb_t *free_cb, void *opaque) -{ - uint32_t i, n; - int ret, cnt = 0; - size_t pg_sz = (size_t)1 << pg_shift; - - /* mempool must not be populated */ - if (mp->nb_mem_chunks != 0) - return -EEXIST; - - if (mp->flags & MEMPOOL_F_NO_IOVA_CONTIG) - return rte_mempool_populate_iova(mp, vaddr, RTE_BAD_IOVA, - pg_num * pg_sz, free_cb, opaque); - - for (i = 0; i < pg_num && mp->populated_size < mp->size; i += n) { - - /* populate with the largest group of contiguous pages */ - for (n = 1; (i + n) < pg_num && - iova[i + n - 1] + pg_sz == iova[i + n]; n++) - ; - - ret = rte_mempool_populate_iova(mp, vaddr + i * pg_sz, - iova[i], n * pg_sz, free_cb, opaque); - if (ret < 0) { - rte_mempool_free_memchunks(mp); - return ret; - } - /* no need to call the free callback for next chunks */ - free_cb = NULL; - cnt += ret; - } - return cnt; -} - -int -rte_mempool_populate_phys_tab(struct rte_mempool *mp, char *vaddr, - const phys_addr_t paddr[], uint32_t pg_num, uint32_t pg_shift, - rte_mempool_memchunk_free_cb_t *free_cb, void *opaque) -{ - return rte_mempool_populate_iova_tab(mp, vaddr, paddr, pg_num, pg_shift, - free_cb, opaque); -} - /* Populate the mempool with a virtual area. Return the number of * objects added, or a negative value on error. */ @@ -916,6 +772,12 @@ rte_mempool_create_empty(const char *name, unsigned n, unsigned elt_size, mempool_list = RTE_TAILQ_CAST(rte_mempool_tailq.head, rte_mempool_list); + /* asked for zero items */ + if (n == 0) { + rte_errno = EINVAL; + return NULL; + } + /* asked cache too big */ if (cache_size > RTE_MEMPOOL_CACHE_MAX_SIZE || CALC_CACHE_FLUSHTHRESH(cache_size) > n) { @@ -1065,66 +927,6 @@ rte_mempool_create(const char *name, unsigned n, unsigned elt_size, return NULL; } -/* - * Create the mempool over already allocated chunk of memory. - * That external memory buffer can consists of physically disjoint pages. - * Setting vaddr to NULL, makes mempool to fallback to rte_mempool_create() - * behavior. - */ -struct rte_mempool * -rte_mempool_xmem_create(const char *name, unsigned n, unsigned elt_size, - unsigned cache_size, unsigned private_data_size, - rte_mempool_ctor_t *mp_init, void *mp_init_arg, - rte_mempool_obj_cb_t *obj_init, void *obj_init_arg, - int socket_id, unsigned flags, void *vaddr, - const rte_iova_t iova[], uint32_t pg_num, uint32_t pg_shift) -{ - struct rte_mempool *mp = NULL; - int ret; - - /* no virtual address supplied, use rte_mempool_create() */ - if (vaddr == NULL) - return rte_mempool_create(name, n, elt_size, cache_size, - private_data_size, mp_init, mp_init_arg, - obj_init, obj_init_arg, socket_id, flags); - - /* check that we have both VA and PA */ - if (iova == NULL) { - rte_errno = EINVAL; - return NULL; - } - - /* Check that pg_shift parameter is valid. */ - if (pg_shift > MEMPOOL_PG_SHIFT_MAX) { - rte_errno = EINVAL; - return NULL; - } - - mp = rte_mempool_create_empty(name, n, elt_size, cache_size, - private_data_size, socket_id, flags); - if (mp == NULL) - return NULL; - - /* call the mempool priv initializer */ - if (mp_init) - mp_init(mp, mp_init_arg); - - ret = rte_mempool_populate_iova_tab(mp, vaddr, iova, pg_num, pg_shift, - NULL, NULL); - if (ret < 0 || ret != (int)mp->size) - goto fail; - - /* call the object initializers */ - if (obj_init) - rte_mempool_obj_iter(mp, obj_init, obj_init_arg); - - return mp; - - fail: - rte_mempool_free(mp); - return NULL; -} - /* Return the number of entries in the mempool */ unsigned int rte_mempool_avail_count(const struct rte_mempool *mp) |