On 7/25/19 7:57 AM, simei wrote:
From: Simei Su <simei...@intel.com>
Currently, there are DEFAULT,TOEPLITZ and SIMPLE_XOR hash funtion.
To support symmetric hash by rte_flow RSS action, this patch adds
new hash function "Symmetric Toeplitz" which is supported by some hardware.
Isn't it a question of key to achieve symmetry?
I.e. hash algorithm (function) is still the same - Toeplitz, but
hash key makes the result symmetric (i.e. equal for flows in both
directions - swap transport ports and IPv4/6 addresses).
Signed-off-by: Simei Su <simei...@intel.com>
---
lib/librte_ethdev/rte_flow.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index f3a8fb1..2a0e6d5 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -1744,6 +1744,7 @@ enum rte_eth_hash_function {
RTE_ETH_HASH_FUNCTION_DEFAULT = 0,
RTE_ETH_HASH_FUNCTION_TOEPLITZ, /**< Toeplitz */
RTE_ETH_HASH_FUNCTION_SIMPLE_XOR, /**< Simple XOR */
+ RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ, /**< Symmetric Toeplitz */
RTE_ETH_HASH_FUNCTION_MAX,
};
