fb6c541d37
In this patch, we also update perf and identify examples. If there is no local nvme device info parsing, we will set dpdk initialization with no-pci choice. Change-Id: I58b2d291b7b53894aeb194a16798ff1c72cf25b4 Signed-off-by: Ziye Yang <optimistyzy@gmail.com> Reviewed-on: https://review.gerrithub.io/365361 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
289 lines
6.9 KiB
C
289 lines
6.9 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "env_internal.h"
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#include <rte_config.h>
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#include <rte_eal.h>
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#define SPDK_ENV_DPDK_DEFAULT_NAME "spdk"
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#define SPDK_ENV_DPDK_DEFAULT_SHM_ID -1
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#define SPDK_ENV_DPDK_DEFAULT_MEM_SIZE -1
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#define SPDK_ENV_DPDK_DEFAULT_MASTER_CORE -1
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#define SPDK_ENV_DPDK_DEFAULT_MEM_CHANNEL -1
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#define SPDK_ENV_DPDK_DEFAULT_CORE_MASK "0x1"
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static char *
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_sprintf_alloc(const char *format, ...)
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{
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va_list args;
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va_list args_copy;
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char *buf;
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size_t bufsize;
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int rc;
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va_start(args, format);
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/* Try with a small buffer first. */
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bufsize = 32;
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/* Limit maximum buffer size to something reasonable so we don't loop forever. */
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while (bufsize <= 1024 * 1024) {
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buf = malloc(bufsize);
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if (buf == NULL) {
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va_end(args);
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return NULL;
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}
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va_copy(args_copy, args);
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rc = vsnprintf(buf, bufsize, format, args_copy);
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va_end(args_copy);
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/*
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* If vsnprintf() returned a count within our current buffer size, we are done.
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* The count does not include the \0 terminator, so rc == bufsize is not OK.
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*/
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if (rc >= 0 && (size_t)rc < bufsize) {
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va_end(args);
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return buf;
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}
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/*
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* vsnprintf() should return the required space, but some libc versions do not
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* implement this correctly, so just double the buffer size and try again.
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*
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* We don't need the data in buf, so rather than realloc(), use free() and malloc()
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* again to avoid a copy.
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*/
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free(buf);
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bufsize *= 2;
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}
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va_end(args);
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return NULL;
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}
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void
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spdk_env_opts_init(struct spdk_env_opts *opts)
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{
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if (!opts) {
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return;
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}
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memset(opts, 0, sizeof(*opts));
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opts->name = SPDK_ENV_DPDK_DEFAULT_NAME;
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opts->core_mask = SPDK_ENV_DPDK_DEFAULT_CORE_MASK;
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opts->shm_id = SPDK_ENV_DPDK_DEFAULT_SHM_ID;
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opts->dpdk_mem_size = SPDK_ENV_DPDK_DEFAULT_MEM_SIZE;
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opts->dpdk_master_core = SPDK_ENV_DPDK_DEFAULT_MASTER_CORE;
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opts->dpdk_mem_channel = SPDK_ENV_DPDK_DEFAULT_MEM_CHANNEL;
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}
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static void
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spdk_free_args(char **args, int argcount)
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{
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int i;
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assert(args != NULL);
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for (i = 0; i < argcount; i++) {
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assert(args[i] != NULL);
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free(args[i]);
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}
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free(args);
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}
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static char **
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spdk_push_arg(char *args[], int *argcount, char *arg)
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{
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char **tmp;
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if (arg == NULL) {
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return NULL;
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}
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tmp = realloc(args, sizeof(char *) * (*argcount + 1));
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if (tmp == NULL) {
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spdk_free_args(args, *argcount);
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return NULL;
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}
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tmp[*argcount] = arg;
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(*argcount)++;
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return tmp;
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}
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static int
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spdk_build_eal_cmdline(const struct spdk_env_opts *opts, char **out[])
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{
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int argcount = 0;
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char **args;
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if (out == NULL) {
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return -1;
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}
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*out = NULL;
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args = NULL;
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/* set the program name */
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("%s", opts->name));
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if (args == NULL) {
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return -1;
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}
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/* set the coremask */
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("-c %s", opts->core_mask));
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if (args == NULL) {
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return -1;
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}
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/* set the memory channel number */
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if (opts->dpdk_mem_channel > 0) {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("-n %d", opts->dpdk_mem_channel));
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if (args == NULL) {
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return -1;
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}
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}
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/* set the memory size */
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if (opts->dpdk_mem_size > 0) {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("-m %d", opts->dpdk_mem_size));
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if (args == NULL) {
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return -1;
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}
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}
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/* set the master core */
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if (opts->dpdk_master_core > 0) {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--master-lcore=%d",
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opts->dpdk_master_core));
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if (args == NULL) {
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return -1;
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}
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}
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/* set no pci if enabled */
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if (opts->no_pci) {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--no-pci"));
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if (args == NULL) {
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return -1;
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}
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}
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#ifdef __linux__
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if (opts->shm_id < 0) {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--file-prefix=spdk_pid%d",
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getpid()));
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if (args == NULL) {
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return -1;
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}
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} else {
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--file-prefix=spdk%d",
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opts->shm_id));
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if (args == NULL) {
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return -1;
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}
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/* set the base virtual address */
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--base-virtaddr=0x1000000000"));
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if (args == NULL) {
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return -1;
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}
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/* set the process type */
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args = spdk_push_arg(args, &argcount, _sprintf_alloc("--proc-type=auto"));
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if (args == NULL) {
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return -1;
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}
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}
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#endif
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*out = args;
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return argcount;
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}
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void spdk_env_init(const struct spdk_env_opts *opts)
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{
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char **args = NULL;
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char **dpdk_args = NULL;
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int argcount, i, rc;
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int orig_optind;
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argcount = spdk_build_eal_cmdline(opts, &args);
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if (argcount <= 0) {
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fprintf(stderr, "Invalid arguments to initialize DPDK\n");
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exit(-1);
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}
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printf("Starting %s initialization...\n", rte_version());
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printf("[ DPDK EAL parameters: ");
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for (i = 0; i < argcount; i++) {
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printf("%s ", args[i]);
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}
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printf("]\n");
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/* DPDK rearranges the array we pass to it, so make a copy
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* before passing so we can still free the individual strings
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* correctly.
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*/
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dpdk_args = calloc(argcount, sizeof(char *));
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if (dpdk_args == NULL) {
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fprintf(stderr, "Failed to allocate dpdk_args\n");
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exit(-1);
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}
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memcpy(dpdk_args, args, sizeof(char *) * argcount);
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fflush(stdout);
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orig_optind = optind;
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optind = 1;
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rc = rte_eal_init(argcount, dpdk_args);
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optind = orig_optind;
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spdk_free_args(args, argcount);
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free(dpdk_args);
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if (rc < 0) {
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fprintf(stderr, "Failed to initialize DPDK\n");
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exit(-1);
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}
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spdk_vtophys_register_dpdk_mem();
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}
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