diff mbox

[dpdk-dev,RFC,01/10] eal: add --no-shared-files option

Message ID a5a8f937e3e74d892a884189d2c245556e42eb8c.1527776837.git.anatoly.burakov@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers

Checks

Context Check Description
ci/checkpatch warning coding style issues
ci/Intel-compilation success Compilation OK

Commit Message

Anatoly Burakov May 31, 2018, 2:32 p.m. UTC 
  This command-line option will cause DPDK to not create any shared
files at runtime, including any shared configuration or hugetlbfs
files. This is useful for debug purposes, as well as for certain
use cases like containers.

Currently, this option does nothing.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 lib/librte_eal/common/eal_common_options.c | 7 +++++++
 lib/librte_eal/common/eal_internal_cfg.h   | 1 +
 lib/librte_eal/common/eal_options.h        | 2 ++
 3 files changed, 10 insertions(+)
diff mbox

Patch

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index ecebb2923..38df094de 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -66,6 +66,7 @@  eal_long_options[] = {
 	{OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
 	{OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
 	{OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
+	{OPT_NO_SHARED_FILES,   0, NULL, OPT_NO_SHARED_FILES_NUM  },
 	{OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
 	{OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
 	{OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
@@ -1165,6 +1166,10 @@  eal_parse_common_option(int opt, const char *optarg,
 		conf->no_shconf = 1;
 		break;
 
+	case OPT_NO_SHARED_FILES_NUM:
+		conf->no_shared_files = 1;
+		break;
+
 	case OPT_PROC_TYPE_NUM:
 		conf->process_type = eal_parse_proc_type(optarg);
 		break;
@@ -1370,6 +1375,8 @@  eal_common_usage(void)
 	       "                      Set specific log level\n"
 	       "  -v                  Display version information on startup\n"
 	       "  -h, --help          This help\n"
+	       "  --"OPT_NO_SHARED_FILES"   Do not create any shared files (config, hugetlbfs, etc.).\n"
+	       "                      This disables secondary process support\n"
 	       "\nEAL options for DEBUG use only:\n"
 	       "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
 	       "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
diff --git a/lib/librte_eal/common/eal_internal_cfg.h b/lib/librte_eal/common/eal_internal_cfg.h
index c4cbf3acd..3fc71bb49 100644
--- a/lib/librte_eal/common/eal_internal_cfg.h
+++ b/lib/librte_eal/common/eal_internal_cfg.h
@@ -41,6 +41,7 @@  struct internal_config {
 	volatile unsigned vmware_tsc_map; /**< true to use VMware TSC mapping
 										* instead of native TSC */
 	volatile unsigned no_shconf;      /**< true if there is no shared config */
+	volatile unsigned no_shared_files; /**< true if there are no shared files to be created*/
 	volatile unsigned create_uio_dev; /**< true to create /dev/uioX devices */
 	volatile enum rte_proc_type_t process_type; /**< multi-process proc type */
 	/** true to try allocating memory on specific sockets */
diff --git a/lib/librte_eal/common/eal_options.h b/lib/librte_eal/common/eal_options.h
index 211ae06ae..b0d9d6819 100644
--- a/lib/librte_eal/common/eal_options.h
+++ b/lib/librte_eal/common/eal_options.h
@@ -45,6 +45,8 @@  enum {
 	OPT_NO_PCI_NUM,
 #define OPT_NO_SHCONF         "no-shconf"
 	OPT_NO_SHCONF_NUM,
+#define OPT_NO_SHARED_FILES   "no-shared-files"
+	OPT_NO_SHARED_FILES_NUM,
 #define OPT_SOCKET_MEM        "socket-mem"
 	OPT_SOCKET_MEM_NUM,
 #define OPT_SYSLOG            "syslog"