X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fdpaa2%2Frte_pmd_dpaa2.h;h=7052d9da940687ecbad0f09d4870e896e562b2e0;hb=8ba325b051eaad293c6eae2f5dbbe1d3e997d636;hp=57de27f21b51a69cf7c1eb7585ba8f0f0724ea79;hpb=1def64c2d79e07eb3ec73f5d1ca797e512a3e4d5;p=dpdk.git

diff --git a/drivers/net/dpaa2/rte_pmd_dpaa2.h b/drivers/net/dpaa2/rte_pmd_dpaa2.h
index 57de27f21b..7052d9da94 100644
--- a/drivers/net/dpaa2/rte_pmd_dpaa2.h
+++ b/drivers/net/dpaa2/rte_pmd_dpaa2.h
@@ -59,4 +59,32 @@ rte_pmd_dpaa2_mux_flow_create(uint32_t dpdmux_id,
 			      struct rte_flow_item *pattern[],
 			      struct rte_flow_action *actions[]);
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ * Create a custom hash key on basis of offset of start of packet and size.
+ * for e.g. if we need GRE packets (non-vlan and without any extra headers)
+ * to be hashed on basis of inner IP header, we will provide offset as:
+ * 14 (eth) + 20 (IP) + 4 (GRE) + 12 (Inner Src offset) = 50 and size
+ * as 8 bytes.
+ *
+ * @param port_id
+ *    The port identifier of the Ethernet device.
+ * @param offset
+ *    Offset from the start of packet which needs to be included to
+ *    calculate hash
+ * @param size
+ *    Size of the hash input key
+ *
+ * @return
+ *   - 0 if successful.
+ *   - Negative in case of failure.
+ */
+__rte_experimental
+int
+rte_pmd_dpaa2_set_custom_hash(uint16_t port_id,
+			      uint16_t offset,
+			      uint8_t size);
+
 #endif /* _RTE_PMD_DPAA2_H */