[PATCH 1/4] net/mlx5: add table insertion type and hash function

[Alexander Kozyrev]

Pass the insertion type and hash calculation function of a table
to the mlx5 PMD driver. Create appropriate table as requested.
Note that 16-bit checksum hash calculation is not supported yet.

Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_hw.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index 20c71ff7f0..8002c88e4a 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -154,6 +154,23 @@ static const struct rte_flow_item_eth 
ctrl_rx_eth_bcast_spec = {
        .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
        .type = 0,
 };
+static inline enum mlx5dr_matcher_insert_mode
+flow_hw_matcher_insert_mode_get(enum rte_flow_table_insertion_type insert_type)
+{
+       if (insert_type == RTE_FLOW_TABLE_INSERTION_TYPE_PATTERN)
+               return MLX5DR_MATCHER_INSERT_BY_HASH;
+       else
+               return MLX5DR_MATCHER_INSERT_BY_INDEX;
+}
+
+static inline enum mlx5dr_matcher_distribute_mode
+flow_hw_matcher_distribute_mode_get(enum rte_flow_table_hash_func hash_func)
+{
+       if (hash_func == RTE_FLOW_TABLE_HASH_FUNC_LINEAR)
+               return MLX5DR_MATCHER_DISTRIBUTE_BY_LINEAR;
+       else
+               return MLX5DR_MATCHER_DISTRIBUTE_BY_HASH;
+}
 
 /**
  * Set the hash fields according to the @p rss_desc information.
@@ -3052,7 +3069,7 @@ flow_hw_table_create(struct rte_eth_dev *dev,
                .type = "mlx5_hw_table_flow",
        };
        struct mlx5_list_entry *ge;
-       uint32_t i, max_tpl = MLX5_HW_TBL_MAX_ITEM_TEMPLATE;
+       uint32_t i = 0, max_tpl = MLX5_HW_TBL_MAX_ITEM_TEMPLATE;
        uint32_t nb_flows = rte_align32pow2(attr->nb_flows);
        bool port_started = !!dev->data->dev_started;
        int err;
@@ -3093,6 +3110,13 @@ flow_hw_table_create(struct rte_eth_dev *dev,
        matcher_attr.priority = attr->flow_attr.priority;
        matcher_attr.optimize_using_rule_idx = true;
        matcher_attr.mode = MLX5DR_MATCHER_RESOURCE_MODE_RULE;
+       matcher_attr.insert_mode = 
flow_hw_matcher_insert_mode_get(attr->insertion_type);
+       if (attr->hash_func == RTE_FLOW_TABLE_HASH_FUNC_CRC16) {
+               DRV_LOG(ERR, "16-bit checksum hash type is not supported");
+               rte_errno = ENOTSUP;
+               goto it_error;
+       }
+       matcher_attr.distribute_mode = 
flow_hw_matcher_distribute_mode_get(attr->hash_func);
        matcher_attr.rule.num_log = rte_log2_u32(nb_flows);
        /* Build the item template. */
        for (i = 0; i < nb_item_templates; i++) {
-- 
2.18.2