diff options
Diffstat (limited to 'app/test-pmd/mempool_anon.c')
| -rw-r--r-- | app/test-pmd/mempool_anon.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/app/test-pmd/mempool_anon.c b/app/test-pmd/mempool_anon.c deleted file mode 100644 index 47304329..00000000 --- a/app/test-pmd/mempool_anon.c +++ /dev/null @@ -1,201 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include "mempool_osdep.h" -#include <rte_errno.h> - -#ifdef RTE_EXEC_ENV_LINUXAPP - -#include <fcntl.h> -#include <unistd.h> -#include <sys/mman.h> - - -#define PAGEMAP_FNAME "/proc/self/pagemap" - -/* - * the pfn (page frame number) are bits 0-54 (see pagemap.txt in linux - * Documentation). - */ -#define PAGEMAP_PFN_BITS 54 -#define PAGEMAP_PFN_MASK RTE_LEN2MASK(PAGEMAP_PFN_BITS, phys_addr_t) - - -static int -get_phys_map(void *va, phys_addr_t pa[], uint32_t pg_num, uint32_t pg_sz) -{ - int32_t fd, rc; - uint32_t i, nb; - off_t ofs; - - ofs = (uintptr_t)va / pg_sz * sizeof(*pa); - nb = pg_num * sizeof(*pa); - - if ((fd = open(PAGEMAP_FNAME, O_RDONLY)) < 0) - return ENOENT; - - if ((rc = pread(fd, pa, nb, ofs)) < 0 || (rc -= nb) != 0) { - - RTE_LOG(ERR, USER1, "failed read of %u bytes from \'%s\' " - "at offset %zu, error code: %d\n", - nb, PAGEMAP_FNAME, (size_t)ofs, errno); - rc = ENOENT; - } - - close(fd); - - for (i = 0; i != pg_num; i++) - pa[i] = (pa[i] & PAGEMAP_PFN_MASK) * pg_sz; - - return rc; -} - -struct rte_mempool * -mempool_anon_create(const char *name, unsigned elt_num, unsigned elt_size, - unsigned cache_size, unsigned private_data_size, - rte_mempool_ctor_t *mp_init, void *mp_init_arg, - rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg, - int socket_id, unsigned flags) -{ - struct rte_mempool *mp; - phys_addr_t *pa; - char *va, *uv; - uint32_t n, pg_num, pg_shift, pg_sz, total_size; - size_t sz; - ssize_t usz; - int32_t rc; - - rc = ENOMEM; - mp = NULL; - - pg_sz = getpagesize(); - if (rte_is_power_of_2(pg_sz) == 0) { - rte_errno = EINVAL; - return mp; - } - - pg_shift = rte_bsf32(pg_sz); - - total_size = rte_mempool_calc_obj_size(elt_size, flags, NULL); - - /* calc max memory size and max number of pages needed. */ - sz = rte_mempool_xmem_size(elt_num, total_size, pg_shift); - pg_num = sz >> pg_shift; - - /* get chunk of virtually continuos memory.*/ - if ((va = mmap(NULL, sz, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS | MAP_LOCKED, - -1, 0)) == MAP_FAILED) { - RTE_LOG(ERR, USER1, "%s(%s) failed mmap of %zu bytes, " - "error code: %d\n", - __func__, name, sz, errno); - rte_errno = rc; - return mp; - } - - /* extract physical mappings of the allocated memory. */ - if ((pa = calloc(pg_num, sizeof (*pa))) != NULL && - (rc = get_phys_map(va, pa, pg_num, pg_sz)) == 0) { - - /* - * Check that allocated size is big enough to hold elt_num - * objects and a calcualte how many bytes are actually required. - */ - - if ((usz = rte_mempool_xmem_usage(va, elt_num, total_size, pa, - pg_num, pg_shift)) < 0) { - - n = -usz; - rc = ENOENT; - RTE_LOG(ERR, USER1, "%s(%s) only %u objects from %u " - "requested can be created over " - "mmaped region %p of %zu bytes\n", - __func__, name, n, elt_num, va, sz); - } else { - - /* unmap unused pages if any */ - if ((size_t)usz < sz) { - - uv = va + usz; - usz = sz - usz; - - RTE_LOG(INFO, USER1, - "%s(%s): unmap unused %zu of %zu " - "mmaped bytes @%p\n", - __func__, name, (size_t)usz, sz, uv); - munmap(uv, usz); - sz -= usz; - pg_num = sz >> pg_shift; - } - - if ((mp = rte_mempool_xmem_create(name, elt_num, - elt_size, cache_size, private_data_size, - mp_init, mp_init_arg, - obj_init, obj_init_arg, - socket_id, flags, va, pa, pg_num, - pg_shift)) != NULL) - - RTE_VERIFY(elt_num == mp->size); - } - } - - if (mp == NULL) { - munmap(va, sz); - rte_errno = rc; - } - - free(pa); - return mp; -} - -#else /* RTE_EXEC_ENV_LINUXAPP */ - - -struct rte_mempool * -mempool_anon_create(__rte_unused const char *name, - __rte_unused unsigned elt_num, __rte_unused unsigned elt_size, - __rte_unused unsigned cache_size, - __rte_unused unsigned private_data_size, - __rte_unused rte_mempool_ctor_t *mp_init, - __rte_unused void *mp_init_arg, - __rte_unused rte_mempool_obj_ctor_t *obj_init, - __rte_unused void *obj_init_arg, - __rte_unused int socket_id, __rte_unused unsigned flags) -{ - rte_errno = ENOTSUP; - return NULL; -} - -#endif /* RTE_EXEC_ENV_LINUXAPP */ |