When using --no-huge mode, dynamic allocation is not supported.
Because of this limitation, the option --legacy-mem is implied
and -m may be needed to specify the amount of memory to allocate.
Otherwise the default amount MEMSIZE_IF_NO_HUGE_PAGE will be allocated.
Signed-off-by: Thomas Monjalon <tho...@monjalon.net>
---
v2:
- user-oriented message
- trigger warning on any legacy mem option
---
lib/librte_eal/common/eal_common_options.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/librte_eal/common/eal_common_options.c
b/lib/librte_eal/common/eal_common_options.c
index 24e36cf23..5e489041a 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -1592,6 +1592,10 @@ eal_check_common_options(struct internal_config
*internal_cfg)
"with --"OPT_MATCH_ALLOCATIONS"\n");
return -1;
}
+ if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
+ RTE_LOG(NOTICE, EAL, "Selected memory layout is static, "
+ "allocation can be increased with the option -m\n");
+ }
return 0;
}
--
2.21.0
