The directory /var/log may not be writable in a container's
read-only mode. To address this issue, use the DPDK runtime
directory as an alternative when /var/log is not writable.
Cc: bi...@nvidia.com
Cc: dsosnow...@nvidia.com
Cc: step...@networkplumber.org
Cc: julien.meun...@nokia.com
Signed-off-by: Yang Ming <ming.1.y...@nokia-sbell.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 33 ++++++++++++++++++++++++---------
1 file changed, 24 insertions(+), 9 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 9c075f6a56..9e63d38524 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -6,12 +6,14 @@
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
+#include <unistd.h>
#include <rte_mbuf.h>
#include <rte_mempool.h>
#include <rte_prefetch.h>
#include <rte_common.h>
#include <rte_branch_prediction.h>
+#include <rte_eal.h>
#include <rte_ether.h>
#include <rte_cycles.h>
#include <rte_flow.h>
@@ -411,20 +413,33 @@ mlx5_dump_debug_information(const char *fname, const char
*hex_title,
{
FILE *fd;
- MKSTR(path, "%s/%s", MLX5_SYSTEM_LOG_DIR, fname);
- fd = fopen(path, "a+");
- if (!fd) {
- DRV_LOG(WARNING, "cannot open %s for debug dump", path);
- MKSTR(path2, "./%s", fname);
+ if (access(MLX5_SYSTEM_LOG_DIR, W_OK) == 0) {
+ MKSTR(path, "%s/%s", MLX5_SYSTEM_LOG_DIR, fname);
+ fd = fopen(path, "a+");
+ if (!fd)
+ DRV_LOG(WARNING, "cannot open %s for debug dump", path);
+ else
+ DRV_LOG(INFO, "New debug dump in file %s", path);
+ } else {
+ MKSTR(path2, "%s/%s", rte_eal_get_runtime_dir(), fname);
fd = fopen(path2, "a+");
+ if (!fd)
+ DRV_LOG(WARNING, "cannot open %s for debug dump",
path2);
+ else
+ DRV_LOG(INFO, "New debug dump in file %s", path2);
+ }
+
+ if (!fd) {
+ MKSTR(path3, "./%s", fname);
+ fd = fopen(path3, "a+");
if (!fd) {
- DRV_LOG(ERR, "cannot open %s for debug dump", path2);
+ DRV_LOG(ERR, "cannot open %s for debug dump", path3);
return;
+ } else {
+ DRV_LOG(INFO, "New debug dump in file %s", path3);
}
- DRV_LOG(INFO, "New debug dump in file %s", path2);
- } else {
- DRV_LOG(INFO, "New debug dump in file %s", path);
}
+
if (hex_title)
rte_hexdump(fd, hex_title, buf, hex_len);
else
--
2.34.1
