diff options
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/devices/dpdk/dpdk_priv.h | 1 | ||||
| -rw-r--r-- | vnet/vnet/devices/dpdk/init.c | 147 |
2 files changed, 81 insertions, 67 deletions
diff --git a/vnet/vnet/devices/dpdk/dpdk_priv.h b/vnet/vnet/devices/dpdk/dpdk_priv.h index e284503eff2..a0fa38a4712 100644 --- a/vnet/vnet/devices/dpdk/dpdk_priv.h +++ b/vnet/vnet/devices/dpdk/dpdk_priv.h @@ -45,7 +45,6 @@ _(force-ranks, r) _(huge-dir) \ _(proc-type) \ _(file-prefix) \ -_(socket-mem) \ _(vdev) static inline u32 diff --git a/vnet/vnet/devices/dpdk/init.c b/vnet/vnet/devices/dpdk/init.c index 716377c198f..58bc7a1e40a 100644 --- a/vnet/vnet/devices/dpdk/init.c +++ b/vnet/vnet/devices/dpdk/init.c @@ -783,38 +783,6 @@ dpdk_bind_devices_to_uio (dpdk_main_t * dm) vec_free (pci_addr); } -static u32 -get_node_free_hugepages_num (u32 node, u32 page_size) -{ - FILE * fp; - u8 * tmp; - - tmp = format (0, "/sys/devices/system/node/node%u/hugepages/hugepages-%ukB/" - "free_hugepages%c", node, page_size, 0); - fp = fopen ((char *) tmp, "r"); - vec_free(tmp); - - if (fp != NULL) - { - u8 * buffer = 0; - u32 pages_avail = 0; - - vec_validate (buffer, 256-1); - if (fgets ((char *)buffer, 256, fp)) - { - unformat_input_t in; - unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer)); - unformat(&in, "%u", &pages_avail); - unformat_free (&in); - } - vec_free(buffer); - fclose(fp); - return pages_avail; - } - - return 0; -} - static clib_error_t * dpdk_config (vlib_main_t * vm, unformat_input_t * input) { @@ -910,6 +878,8 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input) ; else if (unformat (input, "uio-driver %s", &dm->uio_driver_name)) ; + else if (unformat (input, "socket-mem %s", &socket_mem)) + ; else if (unformat (input, "vhost-user-coalesce-frames %d", &dm->vhost_coalesce_frames)) ; else if (unformat (input, "vhost-user-coalesce-time %f", &dm->vhost_coalesce_time)) @@ -937,8 +907,6 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input) huge_dir = 1; \ else if (!strncmp(#a, "file-prefix", 11)) \ file_prefix = 1; \ - else if (!strncmp(#a, "socket-mem", 10)) \ - socket_mem = vec_dup (s); \ tmp = format (0, "--%s%c", #a, 0); \ vec_add1 (dm->eal_init_args, tmp); \ vec_add1 (s, 0); \ @@ -982,56 +950,97 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input) } if (!dm->uio_driver_name) - dm->uio_driver_name = format (0, "igb_uio"); + dm->uio_driver_name = format (0, "igb_uio%c", 0); /* * Use 1G huge pages if available. */ if (!no_huge && !huge_dir) { - uword * mem_by_socket = hash_create (0, sizeof (uword)); - uword c; + u32 x, * mem_by_socket = 0; + uword c = 0; u8 use_1g = 1; u8 use_2m = 1; + u8 less_than_1g = 1; int rv; umount(DEFAULT_HUGE_DIR); /* Process "socket-mem" parameter value */ if (vec_len (socket_mem)) - { - unformat_input_t in; - unformat_init_vector(&in, socket_mem); - unformat(&in, "%U", unformat_socket_mem, &mem_by_socket); - unformat_free(&in); - } + { + unformat_input_t in; + unformat_init_vector(&in, socket_mem); + while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT) + { + if (unformat (&in, "%u,", &x)) + ; + else if (unformat (&in, "%u", &x)) + ; + else if (unformat (&in, ",")) + x = 0; + else + break; + + vec_add1(mem_by_socket, x); + + if (x > 1023) + less_than_1g = 0; + } + unformat_free(&in); + } else - use_1g = 0; + { + clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ( + { + vec_validate(mem_by_socket, c); + mem_by_socket[c] = 512; /* default per-socket mem */ + } + )); + } /* check if available enough 1GB pages for each socket */ - clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ({ - uword * p = hash_get (mem_by_socket, c); - if (p) - { - u32 mem = p[0]; - if (mem) - { - u32 pages_num_1g = mem / 1024; - u32 pages_num_2m = mem / 2; - u32 pages_avail; - - pages_avail = get_node_free_hugepages_num(c, 1048576); - if (!pages_avail || !(pages_avail >= pages_num_1g)) - use_1g = 0; - - pages_avail = get_node_free_hugepages_num(c, 2048); - if (!pages_avail || !(pages_avail >= pages_num_2m)) - use_2m = 0; - } - } + clib_bitmap_foreach (c, tm->cpu_socket_bitmap, ( + { + u32 pages_avail, page_size, mem; + u8 *s = 0; + char * path = "/sys/devices/system/node/node%u/hugepages/" + "hugepages-%ukB/free_hugepages%c"; + + vec_validate(mem_by_socket, c); + mem = mem_by_socket[c]; + + page_size = 1024; + pages_avail = 0; + s = format (s, path, c, page_size * 1024, 0); + read_sys_fs ((char *) s, "%u", &pages_avail); + vec_reset_length (s); + + if (page_size * pages_avail < mem) + use_1g = 0; + + page_size = 2; + pages_avail = 0; + s = format (s, path, c, page_size * 1024, 0); + read_sys_fs ((char *) s, "%u", &pages_avail); + vec_reset_length (s); + + if (page_size * pages_avail < mem) + use_2m = 0; + + vec_free(s); })); + _vec_len (mem_by_socket) = c + 1; - hash_free (mem_by_socket); + /* regenerate socket_mem string */ + vec_free (socket_mem); + vec_foreach_index (x, mem_by_socket) + socket_mem = format (socket_mem, "%s%u", + socket_mem ? "," : "", + mem_by_socket[x]); + socket_mem = format (socket_mem, "%c", 0); + + vec_free (mem_by_socket); rv = mkdir(VPP_RUN_DIR, 0755); if (rv && errno != EEXIST) @@ -1049,7 +1058,7 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input) goto done; } - if (use_1g) + if (use_1g && !(less_than_1g && use_2m)) { rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G"); } @@ -1156,6 +1165,12 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input) tmp = format (0, "%u%c", tm->main_lcore, 0); vec_add1 (dm->eal_init_args, tmp); + /* set socket-mem */ + tmp = format (0, "--socket-mem%c", 0); + vec_add1 (dm->eal_init_args, tmp); + tmp = format (0, "%s%c", socket_mem, 0); + vec_add1 (dm->eal_init_args, tmp); + /* NULL terminate the "argv" vector, in case of stupidity */ vec_add1 (dm->eal_init_args, 0); _vec_len(dm->eal_init_args) -= 1; |