net/mlx5: add C++ include guard to public header

[dpdk.git] / drivers / net / mlx5 / rte_pmd_mlx5.h

diff --git a/drivers/net/mlx5/rte_pmd_mlx5.h b/drivers/net/mlx5/rte_pmd_mlx5.h
index 8c69228..fc37a38 100644 (file)
--- a/drivers/net/mlx5/rte_pmd_mlx5.h
+++ b/drivers/net/mlx5/rte_pmd_mlx5.h
@@ -13,6 +13,10 @@
  * dynamic flags.
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define RTE_PMD_MLX5_FINE_GRANULARITY_INLINE "mlx5_fine_granularity_inline"
 
 /**
@@ -32,4 +36,33 @@
 __rte_experimental
 int rte_pmd_mlx5_get_dyn_flag_names(char *names[], unsigned int n);
 
+#define MLX5_DOMAIN_BIT_NIC_RX (1 << 0) /**< NIC RX domain bit mask. */
+#define MLX5_DOMAIN_BIT_NIC_TX (1 << 1) /**< NIC TX domain bit mask. */
+#define MLX5_DOMAIN_BIT_FDB    (1 << 2) /**< FDB (TX + RX) domain bit mask. */
+
+/**
+ * Synchronize the flows to make them take effort on hardware.
+ * It only supports DR flows now. For DV and Verbs flows, there is no need to
+ * call this function, and a success will return directly in case of Verbs.
+ *
+ * @param[in] port_id
+ *   The port identifier of the Ethernet device.
+ * @param[in] domains
+ *   Refer to "/usr/include/infiniband/mlx5dv.h".
+ *   Bitmask of domains in which the synchronization will be done.
+ *   MLX5_DOMAIN_BIT* macros are used to specify the domains.
+ *   An ADD or OR operation could be used to synchronize flows in more than
+ *   one domain per call.
+ *
+ * @return
+ *   - (0) if successful.
+ *   - Negative value if an error.
+ */
+__rte_experimental
+int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif