Add a new API to expose GENEVE option FW information to DR layer.
Signed-off-by: Michael Baum <michae...@nvidia.com>
---
drivers/net/mlx5/mlx5_flow.h | 28 +++++++++
drivers/net/mlx5/mlx5_flow_geneve.c | 94 +++++++++++++++++++++++++++++
2 files changed, 122 insertions(+)
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 4bfc218175..dca3cacb65 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -1766,6 +1766,34 @@ flow_hw_get_reg_id_from_ctx(void *dr_ctx,
return REG_NON;
}
+/**
+ * Get GENEVE TLV option FW information according type and class.
+ *
+ * @param[in] dr_ctx
+ * Pointer to HW steering DR context.
+ * @param[in] type
+ * GENEVE TLV option type.
+ * @param[in] class
+ * GENEVE TLV option class.
+ * @param[out] hl_ok_bit
+ * Pointer to header layout structure describing OK bit FW information.
+ * @param[out] num_of_dws
+ * Pointer to fill inside the size of 'hl_dws' array.
+ * @param[out] hl_dws
+ * Pointer to header layout array describing data DWs FW information.
+ * @param[out] ok_bit_on_class
+ * Pointer to an indicator whether OK bit includes class along with type.
+ *
+ * @return
+ * 0 on success, negative errno otherwise and rte_errno is set.
+ */
+int
+mlx5_get_geneve_hl_data(const void *dr_ctx, uint8_t type, uint16_t class,
+ struct mlx5_hl_data ** const hl_ok_bit,
+ uint8_t *num_of_dws,
+ struct mlx5_hl_data ** const hl_dws,
+ bool *ok_bit_on_class);
+
void *
mlx5_geneve_tlv_parser_create(uint16_t port_id,
const struct rte_pmd_mlx5_geneve_tlv tlv_list[],
diff --git a/drivers/net/mlx5/mlx5_flow_geneve.c
b/drivers/net/mlx5/mlx5_flow_geneve.c
index f23fb31aa0..2d593b70ba 100644
--- a/drivers/net/mlx5/mlx5_flow_geneve.c
+++ b/drivers/net/mlx5/mlx5_flow_geneve.c
@@ -58,6 +58,100 @@ struct mlx5_geneve_tlv_options {
RTE_ATOMIC(uint32_t) refcnt;
};
+/**
+ * Check if type and class is matching to given GENEVE TLV option.
+ *
+ * @param type
+ * GENEVE option type.
+ * @param class
+ * GENEVE option class.
+ * @param option
+ * Pointer to GENEVE TLV option structure.
+ *
+ * @return
+ * True if this type and class match to this option, false otherwise.
+ */
+static inline bool
+option_match_type_and_class(uint8_t type, uint16_t class,
+ struct mlx5_geneve_tlv_option *option)
+{
+ if (type != option->type)
+ return false;
+ if (option->class_mode == 1 && option->class != class)
+ return false;
+ return true;
+}
+
+/**
+ * Get GENEVE TLV option matching to given type and class.
+ *
+ * @param priv
+ * Pointer to port's private data.
+ * @param type
+ * GENEVE option type.
+ * @param class
+ * GENEVE option class.
+ *
+ * @return
+ * Pointer to option structure if exist, NULL otherwise and rte_errno is set.
+ */
+static struct mlx5_geneve_tlv_option *
+mlx5_geneve_tlv_option_get(const struct mlx5_priv *priv, uint8_t type,
+ uint16_t class)
+{
+ struct mlx5_geneve_tlv_options *options;
+ uint8_t i;
+
+ if (priv->tlv_options == NULL) {
+ DRV_LOG(ERR,
+ "Port %u doesn't have configured GENEVE TLV options.",
+ priv->dev_data->port_id);
+ rte_errno = EINVAL;
+ return NULL;
+ }
+ options = priv->tlv_options;
+ MLX5_ASSERT(options != NULL);
+ for (i = 0; i < options->nb_options; ++i) {
+ struct mlx5_geneve_tlv_option *option = &options->options[i];
+
+ if (option_match_type_and_class(type, class, option))
+ return option;
+ }
+ DRV_LOG(ERR, "TLV option type %u class %u doesn't exist.", type, class);
+ rte_errno = ENOENT;
+ return NULL;
+}
+
+int
+mlx5_get_geneve_hl_data(const void *dr_ctx, uint8_t type, uint16_t class,
+ struct mlx5_hl_data ** const hl_ok_bit,
+ uint8_t *num_of_dws,
+ struct mlx5_hl_data ** const hl_dws,
+ bool *ok_bit_on_class)
+{
+ uint16_t port_id;
+
+ MLX5_ETH_FOREACH_DEV(port_id, NULL) {
+ struct mlx5_priv *priv;
+ struct mlx5_geneve_tlv_option *option;
+
+ priv = rte_eth_devices[port_id].data->dev_private;
+ if (priv->dr_ctx != dr_ctx)
+ continue;
+ /* Find specific option inside list. */
+ option = mlx5_geneve_tlv_option_get(priv, type, class);
+ if (option == NULL)
+ return -rte_errno;
+ *hl_ok_bit = &option->hl_ok_bit;
+ *hl_dws = option->match_data;
+ *num_of_dws = option->match_data_size;
+ *ok_bit_on_class = !!(option->class_mode == 1);
+ return 0;
+ }
+ DRV_LOG(ERR, "DR CTX %p doesn't belong to any DPDK port.", dr_ctx);
+ return -EINVAL;
+}
+
/**
* Create single GENEVE TLV option sample.
*
--
2.25.1
