[dpdk-dev] [PATCH 5/5] mbuf: support to dump free_flags for dynamic flag

[Xiaolong Ye]

Add support to dump free_flags as below format:

Free bit in mbuf->ol_flags (0 = occupied, 1 = free):
  0000: 0 0 0 0 0 0 0 0
  0008: 0 0 0 0 0 0 0 0
  0010: 0 0 0 0 0 0 0 1
  0018: 1 1 1 1 1 1 1 1
  0020: 1 1 1 1 1 1 1 1
  0028: 1 0 0 0 0 0 0 0
  0030: 0 0 0 0 0 0 0 0
  0038: 0 0 0 0 0 0 0 0

Signed-off-by: Xiaolong Ye <xiaolong.ye at intel.com>
---
 lib/librte_mbuf/rte_mbuf_dyn.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/librte_mbuf/rte_mbuf_dyn.c b/lib/librte_mbuf/rte_mbuf_dyn.c
index f071651acf..538a43f695 100644
--- a/lib/librte_mbuf/rte_mbuf_dyn.c
+++ b/lib/librte_mbuf/rte_mbuf_dyn.c
@@ -559,5 +559,13 @@ void rte_mbuf_dyn_dump(FILE *out)
 		fprintf(out, "%2.2x%s", shm->free_space[i],
 			(i % 8 != 7) ? " " : "\n");
 	}
+	fprintf(out, "Free bit in mbuf->ol_flags (0 = occupied, 1 = free):\n");
+	for (i = 0; i < sizeof(uint64_t) * CHAR_BIT; i++) {
+		if ((i % 8) == 0)
+			fprintf(out, "  %4.4zx: ", i);
+		fprintf(out, "%1.1x%s", (shm->free_flags & (1ULL << i)) ? 1 : 0,
+			(i % 8 != 7) ? " " : "\n");
+	}
+
 	rte_mcfg_tailq_write_unlock();
 }
-- 
2.17.1