[ovs-dev] [PATCH 1/5] lib/dp-packet: init the mbuf to zero when build with DPDK
Michael Qiu
qdy220091330 at gmail.com
Mon Jun 19 05:28:59 UTC 2017
From: Michael Qiu <qiudayu at chinac.com>
When building with DPDK, and using xmalloc() to get a new packet,
field mbuf of the packet will not be initialized, but it's very important for
DPDK port when copying the data to DPDK mbuf, because if ol_flags
and other info are random values, DPDK driver may hang.
Signed-off-by: Michael Qiu <qiudayu at chinac.com>
---
lib/dp-packet.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/dp-packet.c b/lib/dp-packet.c
index 67aa406..ee2c449 100644
--- a/lib/dp-packet.c
+++ b/lib/dp-packet.c
@@ -134,6 +134,9 @@ struct dp_packet *
dp_packet_new(size_t size)
{
struct dp_packet *b = xmalloc(sizeof *b);
+#ifdef DPDK_NETDEV
+ memset(&(b->mbuf), 0, sizeof(struct rte_mbuf));
+#endif
dp_packet_init(b, size);
return b;
}
--
1.8.3.1
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