-/**
- * Convert verbs RSS types to their DPDK equivalents.
- *
- * This function returns a group of RSS DPDK types given their equivalent group
- * of verbs types.
- * For example both source IPv4 and destination IPv4 verbs types are converted
- * into their equivalent RSS group types. If each of these verbs types existed
- * exclusively - no conversion would take place.
- *
- * @param types
- * RSS hash types in verbs format.
- *
- * @return
- * DPDK RSS hash fields supported by mlx4.
- */
-uint64_t
-mlx4_ibv_to_rss_types(uint64_t types)
-{
- enum { IPV4, IPV6, IPV4_TCP, IPV6_TCP, IPV4_UDP, IPV6_UDP};
-
- static const uint64_t in[] = {
- [IPV4] = MLX4_IBV_IPV4_HF,
- [IPV6] = MLX4_IBV_IPV6_HF,
- [IPV4_TCP] = MLX4_IBV_IPV4_HF | MLX4_IBV_TCP_HF,
- [IPV6_TCP] = MLX4_IBV_IPV6_HF | MLX4_IBV_TCP_HF,
- [IPV4_UDP] = MLX4_IBV_IPV4_HF | MLX4_IBV_UDP_HF,
- [IPV6_UDP] = MLX4_IBV_IPV6_HF | MLX4_IBV_UDP_HF,
- };
- static const uint64_t out[RTE_DIM(in)] = {
- [IPV4] = MLX4_RSS_IPV4_HF,
- [IPV6] = MLX4_RSS_IPV6_HF,
- [IPV4_TCP] = MLX4_RSS_IPV4_HF | MLX4_RSS_IPV4_TCP_HF,
- [IPV6_TCP] = MLX4_RSS_IPV6_HF | MLX4_RSS_IPV6_TCP_HF,
- [IPV4_UDP] = MLX4_RSS_IPV4_HF | MLX4_RSS_IPV4_UDP_HF,
- [IPV6_UDP] = MLX4_RSS_IPV6_HF | MLX4_RSS_IPV6_UDP_HF,
- };
- uint64_t conv = 0;
- unsigned int i;
-
- for (i = 0; i != RTE_DIM(in); ++i)
- if ((types & in[i]) == in[i])
- conv |= out[i];
- return conv;
-}
-