[dpdk-dev] [PATCH v2 5/5] mbuf: switch vlan_tci and reserved2 fields
Bruce Richardson
bruce.richardson at intel.com
Tue Sep 23 13:08:17 CEST 2014
Move the vlan_tci field up by two bytes in the mbuf data structure. This
has two effects:
* Ensures the the ixgbe vector driver places the vlan tag in the correct
place in the mbuf.
* Allows a second vlan tag field, if one is added in the future, to be
placed after the existing vlan field, rather than before.
Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
lib/librte_mbuf/rte_mbuf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 9e70d3b..68304cc 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -159,8 +159,8 @@ struct rte_mbuf {
uint16_t reserved2; /**< Unused field. Required for padding */
uint16_t data_len; /**< Amount of data in segment buffer. */
uint32_t pkt_len; /**< Total pkt len: sum of all segments. */
- uint16_t reserved;
uint16_t vlan_tci; /**< VLAN Tag Control Identifier (CPU order) */
+ uint16_t reserved;
union {
uint32_t rss; /**< RSS hash result if RSS enabled */
struct {
--
1.9.3
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