diff options
Diffstat (limited to 'drivers/net/mlx5/mlx5_flow.c')
| -rw-r--r-- | drivers/net/mlx5/mlx5_flow.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 578d003..d4d956f 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -1913,6 +1913,95 @@ mlx5_flow_validate_item_gre(const struct rte_flow_item *item, } /** + * Validate Geneve item. + * + * @param[in] item + * Item specification. + * @param[in] itemFlags + * Bit-fields that holds the items detected until now. + * @param[in] enPriv + * Pointer to the private data structure. + * @param[out] error + * Pointer to error structure. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ + +int +mlx5_flow_validate_item_geneve(const struct rte_flow_item *item, + uint64_t item_flags, + struct rte_eth_dev *dev, + struct rte_flow_error *error) +{ + struct mlx5_priv *priv = dev->data->dev_private; + const struct rte_flow_item_geneve *spec = item->spec; + const struct rte_flow_item_geneve *mask = item->mask; + int ret; + uint16_t gbhdr; + uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ? + MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0; + const struct rte_flow_item_geneve nic_mask = { + .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80), + .vni = "\xff\xff\xff", + .protocol = RTE_BE16(UINT16_MAX), + }; + + if (!(priv->config.hca_attr.flex_parser_protocols & + MLX5_HCA_FLEX_GENEVE_ENABLED) || + !priv->config.hca_attr.tunnel_stateless_geneve_rx) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "L3 Geneve is not enabled by device" + " parameter and/or not configured in" + " firmware"); + if (item_flags & MLX5_FLOW_LAYER_TUNNEL) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "multiple tunnel layers not" + " supported"); + /* + * Verify only UDPv4 is present as defined in + * https://tools.ietf.org/html/rfc7348 + */ + if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "no outer UDP layer found"); + if (!mask) + mask = &rte_flow_item_geneve_mask; + ret = mlx5_flow_item_acceptable + (item, (const uint8_t *)mask, + (const uint8_t *)&nic_mask, + sizeof(struct rte_flow_item_geneve), error); + if (ret) + return ret; + if (spec) { + gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0); + if (MLX5_GENEVE_VER_VAL(gbhdr) || + MLX5_GENEVE_CRITO_VAL(gbhdr) || + MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Geneve protocol unsupported" + " fields are being used"); + if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len) + return rte_flow_error_set + (error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Unsupported Geneve options length"); + } + if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) + return rte_flow_error_set + (error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ITEM, item, + "Geneve tunnel must be fully defined"); + return 0; +} + +/** * Validate MPLS item. * * @param[in] dev |