[dpdk-dev] [PATCH 04/10] ethdev: reuse header definition in flow pattern item VXLAN
Ivan Malov
ivan.malov at oktetlabs.ru
Fri Mar 12 10:31:37 CET 2021
One ought to reuse existing header structs in flow items.
Signed-off-by: Ivan Malov <ivan.malov at oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton at xilinx.com>
---
lib/librte_ethdev/rte_flow.h | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index b9b349669..56c97829c 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -25,6 +25,7 @@
#include <rte_sctp.h>
#include <rte_tcp.h>
#include <rte_udp.h>
+#include <rte_vxlan.h>
#include <rte_byteorder.h>
#include <rte_esp.h>
#include <rte_higig.h>
@@ -954,18 +955,31 @@ static const struct rte_flow_item_sctp rte_flow_item_sctp_mask = {
* RTE_FLOW_ITEM_TYPE_VXLAN.
*
* Matches a VXLAN header (RFC 7348).
+ *
+ * Fields @p flags, @p rsvd0, @p vni and @rsvd1 are left here for compatibility.
+ * Consumers of this item definition are encouraged to use field @p hdr instead.
*/
+RTE_STD_C11
struct rte_flow_item_vxlan {
- uint8_t flags; /**< Normally 0x08 (I flag). */
- uint8_t rsvd0[3]; /**< Reserved, normally 0x000000. */
- uint8_t vni[3]; /**< VXLAN identifier. */
- uint8_t rsvd1; /**< Reserved, normally 0x00. */
+ union {
+ struct {
+ /*
+ * These fields are retained for compatibility.
+ * Please switch to the new header field below.
+ */
+ uint8_t flags; /**< Normally 0x08 (I flag). */
+ uint8_t rsvd0[3]; /**< Reserved, normally 0x000000. */
+ uint8_t vni[3]; /**< VXLAN identifier. */
+ uint8_t rsvd1; /**< Reserved, normally 0x00. */
+ };
+ struct rte_vxlan_hdr hdr;
+ };
};
/** Default mask for RTE_FLOW_ITEM_TYPE_VXLAN. */
#ifndef __cplusplus
static const struct rte_flow_item_vxlan rte_flow_item_vxlan_mask = {
- .vni = "\xff\xff\xff",
+ .hdr.vx_vni = RTE_BE32(__builtin_constant_p(0xffffff << 8)),
};
#endif
--
2.20.1
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