Enhance the logs related to mbuf pool creation. Display an info level
log when creating the mbuf, and display the error as a string on failure.
After the patch, we have:
[...]
EAL: probe driver: 8086:10fb rte_ixgbe_pmd
USER1: create a new mbuf pool <mbuf_pool_socket_0>: n=331456, \
size=2176, socket=0
EAL: Error - exiting with code: 1
Cause: Creation of mbuf pool for socket 0 failed: Cannot allocate \
memory
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
app/test-pmd/testpmd.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 9d11830..a585aad 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -49,6 +49,7 @@
#include <inttypes.h>
#include <rte_common.h>
+#include <rte_errno.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_debug.h>
@@ -415,6 +416,10 @@ mbuf_pool_create(uint16_t mbuf_seg_size, unsigned nb_mbuf,
mb_size = sizeof(struct rte_mbuf) + mbuf_seg_size;
mbuf_poolname_build(socket_id, pool_name, sizeof(pool_name));
+ RTE_LOG(INFO, USER1,
+ "create a new mbuf pool <%s>: n=%u, size=%u, socket=%u\n",
+ pool_name, nb_mbuf, mbuf_seg_size, socket_id);
+
#ifdef RTE_LIBRTE_PMD_XENVIRT
rte_mp = rte_mempool_gntalloc_create(pool_name, nb_mbuf, mb_size,
(unsigned) mb_mempool_cache,
@@ -446,8 +451,9 @@ mbuf_pool_create(uint16_t mbuf_seg_size, unsigned nb_mbuf,
}
if (rte_mp == NULL) {
- rte_exit(EXIT_FAILURE, "Creation of mbuf pool for socket %u "
- "failed\n", socket_id);
+ rte_exit(EXIT_FAILURE,
+ "Creation of mbuf pool for socket %u failed: %s\n",
+ socket_id, rte_strerror(rte_errno));
} else if (verbose_level > 0) {
rte_mempool_dump(stdout, rte_mp);
}
--
2.8.0.rc3
