eal/windows: add missing SPDX license tag

[dpdk.git] / drivers / bus / dpaa / rte_dpaa_bus.h

diff --git a/drivers/bus/dpaa/rte_dpaa_bus.h b/drivers/bus/dpaa/rte_dpaa_bus.h
index fdaa63a..48d5cf4 100644 (file)
--- a/drivers/bus/dpaa/rte_dpaa_bus.h
+++ b/drivers/bus/dpaa/rte_dpaa_bus.h
@@ -7,6 +7,7 @@
 #define __RTE_DPAA_BUS_H__
 
 #include <rte_bus.h>
+#include <rte_mbuf_dyn.h>
 #include <rte_mempool.h>
 #include <dpaax_iova_table.h>
 
@@ -16,6 +17,33 @@
 #include <fsl_bman.h>
 #include <netcfg.h>
 
+/* This sequence number field is used to store event entry index for
+ * driver specific usage. For parallel mode queues, invalid
+ * index will be set and for atomic mode queues, valid value
+ * ranging from 1 to 16.
+ */
+#define DPAA_INVALID_MBUF_SEQN  0
+
+typedef uint32_t dpaa_seqn_t;
+extern int dpaa_seqn_dynfield_offset;
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Read dpaa sequence number from mbuf.
+ *
+ * @param mbuf Structure to read from.
+ * @return pointer to dpaa sequence number.
+ */
+__rte_experimental
+static inline dpaa_seqn_t *
+dpaa_seqn(struct rte_mbuf *mbuf)
+{
+       return RTE_MBUF_DYNFIELD(mbuf, dpaa_seqn_dynfield_offset,
+               dpaa_seqn_t *);
+}
+
 #define DPAA_MEMPOOL_OPS_NAME  "dpaa"
 
 #define DEV_TO_DPAA_DEVICE(ptr)        \