The GENEVE TLV option matching flows must be created
using a translation function.
This function checks whether we already created a Devx
object for the matching and either creates the objects
or updates the reference counter.
Signed-off-by: Shiri Kuzin <shi...@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
---
drivers/net/mlx5/mlx5_flow.h | 2 +-
drivers/net/mlx5/mlx5_flow_dv.c | 85 +++++++++++++++++++++++++++++++++
2 files changed, 86 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index e52f902448..ed112246ed 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -329,7 +329,7 @@ enum mlx5_feature_name {
#define MLX5_GENEVE_VER_VAL(a) \
(((a) >> (MLX5_GENEVE_VER_SHIFT)) & (MLX5_GENEVE_VER_MASK))
#define MLX5_GENEVE_OPTLEN_MASK 0x3F
-#define MLX5_GENEVE_OPTLEN_SHIFT 7
+#define MLX5_GENEVE_OPTLEN_SHIFT 8
#define MLX5_GENEVE_OPTLEN_VAL(a) \
(((a) >> (MLX5_GENEVE_OPTLEN_SHIFT)) & (MLX5_GENEVE_OPTLEN_MASK))
#define MLX5_GENEVE_OAMF_MASK 0x1
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index ba10b7c706..9c080b5c8f 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -7340,6 +7340,80 @@ flow_dev_geneve_tlv_option_resource_register(struct
rte_eth_dev *dev,
return ret;
}
+/**
+ * Add Geneve TLV option item to matcher.
+ *
+ * @param[in, out] dev
+ * Pointer to rte_eth_dev structure.
+ * @param[in, out] matcher
+ * Flow matcher.
+ * @param[in, out] key
+ * Flow matcher value.
+ * @param[in] item
+ * Flow pattern to translate.
+ * @param[out] error
+ * Pointer to error structure.
+ */
+static int
+flow_dv_translate_item_geneve_opt(struct rte_eth_dev *dev, void *matcher,
+ void *key, const struct rte_flow_item *item,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_item_geneve_opt *geneve_opt_m = item->mask;
+ const struct rte_flow_item_geneve_opt *geneve_opt_v = item->spec;
+ void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
+ void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
+ void *misc3_m = MLX5_ADDR_OF(fte_match_param, matcher,
+ misc_parameters_3);
+ void *misc3_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters_3);
+ rte_be32_t opt_data_key = 0, opt_data_mask = 0;
+ int ret = 0;
+
+ if (!geneve_opt_v)
+ return -1;
+ if (!geneve_opt_m)
+ geneve_opt_m = &rte_flow_item_geneve_opt_mask;
+ ret = flow_dev_geneve_tlv_option_resource_register(dev, item,
+ error);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create geneve_tlv_obj");
+ return ret;
+ }
+ /*
+ * Set the option length in GENEVE header if not requested.
+ * The GENEVE TLV option length is expressed by the option length field
+ * in the GENEVE header.
+ * If the option length was not requested but the GENEVE TLV option item
+ * is present we set the option length field implicitly.
+ */
+ if (!MLX5_GET16(fte_match_set_misc, misc_m, geneve_opt_len)) {
+ MLX5_SET(fte_match_set_misc, misc_m, geneve_opt_len,
+ MLX5_GENEVE_OPTLEN_MASK);
+ MLX5_SET(fte_match_set_misc, misc_v, geneve_opt_len,
+ geneve_opt_v->option_len + 1);
+ }
+ /* Set the data. */
+ if (geneve_opt_v->data) {
+ memcpy(&opt_data_key, geneve_opt_v->data,
+ RTE_MIN((uint32_t)(geneve_opt_v->option_len * 4),
+ sizeof(opt_data_key)));
+ MLX5_ASSERT((uint32_t)(geneve_opt_v->option_len * 4) <=
+ sizeof(opt_data_key));
+ memcpy(&opt_data_mask, geneve_opt_m->data,
+ RTE_MIN((uint32_t)(geneve_opt_v->option_len * 4),
+ sizeof(opt_data_mask)));
+ MLX5_ASSERT((uint32_t)(geneve_opt_v->option_len * 4) <=
+ sizeof(opt_data_mask));
+ MLX5_SET(fte_match_set_misc3, misc3_m,
+ geneve_tlv_option_0_data,
+ rte_be_to_cpu_32(opt_data_mask));
+ MLX5_SET(fte_match_set_misc3, misc3_v,
+ geneve_tlv_option_0_data,
+ rte_be_to_cpu_32(opt_data_key & opt_data_mask));
+ }
+ return ret;
+}
+
/**
* Add MPLS item to matcher and to the value.
*
@@ -10587,6 +10661,17 @@ flow_dv_translate(struct rte_eth_dev *dev,
matcher.priority = MLX5_TUNNEL_PRIO_GET(rss_desc);
last_item = MLX5_FLOW_LAYER_GENEVE;
break;
+ case RTE_FLOW_ITEM_TYPE_GENEVE_OPT:
+ ret = flow_dv_translate_item_geneve_opt(dev, match_mask,
+ match_value,
+ items, error);
+ if (ret)
+ return rte_flow_error_set(error, -ret,
+ RTE_FLOW_ERROR_TYPE_ITEM, NULL,
+ "cannot create GENEVE TLV option");
+ flow->geneve_tlv_option = 1;
+ last_item = MLX5_FLOW_LAYER_GENEVE_OPT;
+ break;
case RTE_FLOW_ITEM_TYPE_MPLS:
flow_dv_translate_item_mpls(match_mask, match_value,
items, last_item, tunnel);
--
2.21.0
