diff mbox series

[v3,02/11] eal: improve options usage text

Message ID 20210312181720.242252-3-thomas@monjalon.net (mailing list archive)
State Superseded, archived
Delegated to: David Marchand
Headers show
Series improve options help | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Thomas Monjalon March 12, 2021, 6:17 p.m. UTC
The description of the EAL options was printed before the application
description provided via the hook.
It is better to let the application print the global syntax
and describes the detail of the EAL options below.

Also, some useless lines are removed,
and the alignment of few options is fixed.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 lib/librte_eal/common/eal_common_options.c | 11 +++++------
 lib/librte_eal/freebsd/eal.c               |  8 ++++----
 lib/librte_eal/linux/eal.c                 | 12 ++++++------
 lib/librte_eal/windows/eal.c               | 10 ++++------
 4 files changed, 19 insertions(+), 22 deletions(-)
diff mbox series

Patch

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index 622c7bc429..0635b0d4ce 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -2022,8 +2022,7 @@  rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
 void
 eal_common_usage(void)
 {
-	printf("[options]\n\n"
-	       "EAL common options:\n"
+	printf("EAL common options:\n"
 	       "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
 	       "  -l CORELIST         List of cores to run on\n"
 	       "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
@@ -2053,7 +2052,7 @@  eal_common_usage(void)
 	       "  --"OPT_VDEV"              Add a virtual device.\n"
 	       "                      The argument format is <driver><id>[,key=val,...]\n"
 	       "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
-	       "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
+	       "  --"OPT_IOVA_MODE"         Set IOVA mode. 'pa' for IOVA_PA\n"
 	       "                      'va' for IOVA_VA\n"
 	       "  -d LIB.so|DIR       Add a driver or driver directory\n"
 	       "                      (can be used multiple times)\n"
@@ -2092,11 +2091,11 @@  eal_common_usage(void)
 #endif /* !RTE_EXEC_ENV_WINDOWS */
 	       "  -v                  Display version information on startup\n"
 	       "  -h, --help          This help\n"
-	       "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
+	       "  --"OPT_IN_MEMORY"         Operate entirely in memory. This will\n"
 	       "                      disable secondary process support\n"
 	       "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
-	       "  --"OPT_TELEMETRY"   Enable telemetry support (on by default)\n"
-	       "  --"OPT_NO_TELEMETRY"   Disable telemetry support\n"
+	       "  --"OPT_TELEMETRY"         Enable telemetry support (on by default)\n"
+	       "  --"OPT_NO_TELEMETRY"      Disable telemetry support\n"
 	       "  --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
 	       "\nEAL options for DEBUG use only:\n"
 	       "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
diff --git a/lib/librte_eal/freebsd/eal.c b/lib/librte_eal/freebsd/eal.c
index afbbb1c523..f466616566 100644
--- a/lib/librte_eal/freebsd/eal.c
+++ b/lib/librte_eal/freebsd/eal.c
@@ -421,13 +421,13 @@  eal_usage(const char *prgname)
 {
 	rte_usage_hook_t hook = eal_get_application_usage_hook();
 
-	printf("\nUsage: %s ", prgname);
-	eal_common_usage();
-	/* Allow the application to print its usage message too if hook is set */
 	if (hook) {
-		printf("===== Application Usage =====\n\n");
+		/* Print application usage through EAL options parsing. */
 		(hook)(prgname);
+		printf("\n");
 	}
+
+	eal_common_usage();
 }
 
 static inline size_t
diff --git a/lib/librte_eal/linux/eal.c b/lib/librte_eal/linux/eal.c
index bc966150a5..7c1d296192 100644
--- a/lib/librte_eal/linux/eal.c
+++ b/lib/librte_eal/linux/eal.c
@@ -534,7 +534,12 @@  eal_usage(const char *prgname)
 {
 	rte_usage_hook_t hook = eal_get_application_usage_hook();
 
-	printf("\nUsage: %s ", prgname);
+	if (hook) {
+		/* Print application usage through EAL options parsing. */
+		(hook)(prgname);
+		printf("\n");
+	}
+
 	eal_common_usage();
 	printf("EAL Linux options:\n"
 	       "  --"OPT_SOCKET_MEM"        Memory to allocate on sockets (comma separated values)\n"
@@ -548,11 +553,6 @@  eal_usage(const char *prgname)
 	       "  --"OPT_SINGLE_FILE_SEGMENTS" Put all hugepage memory in single files\n"
 	       "  --"OPT_MATCH_ALLOCATIONS" Free hugepages exactly as allocated\n"
 	       "\n");
-	/* Allow the application to print its usage message too if hook is set */
-	if (hook) {
-		printf("===== Application Usage =====\n\n");
-		(hook)(prgname);
-	}
 }
 
 static int
diff --git a/lib/librte_eal/windows/eal.c b/lib/librte_eal/windows/eal.c
index 2fc3d6141c..ec13ac1a9f 100644
--- a/lib/librte_eal/windows/eal.c
+++ b/lib/librte_eal/windows/eal.c
@@ -79,15 +79,13 @@  eal_usage(const char *prgname)
 {
 	rte_usage_hook_t hook = eal_get_application_usage_hook();
 
-	printf("\nUsage: %s ", prgname);
-	eal_common_usage();
-	/* Allow the application to print its usage message too
-	 * if hook is set
-	 */
 	if (hook) {
-		printf("===== Application Usage =====\n\n");
+		/* Print application usage through EAL options parsing. */
 		(hook)(prgname);
+		printf("\n");
 	}
+
+	eal_common_usage();
 }
 
 /* Parse the arguments for --log-level only */