From: Xiaoyu Min Date: Tue, 16 Oct 2018 08:14:30 +0000 (+0000) Subject: net/mlx5: rewrite TTL by E-Switch X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a7cb5bcd281e286bb77f54acb61f59046a66c465;p=dpdk.git net/mlx5: rewrite TTL by E-Switch Offload following modify TTL actions to E-Switch via TC-Flower driver - RTE_FLOW_ACTION_TYPE_SET_TTL - RTE_FLOW_ACTION_TYPE_DEC_TTL The corresponding IP protocol rte_flow_item_ipv[4|6] must be present in rte_flow pattern otherwith PMD return error The example testpmd commands are: flow create 0 transfer ingress pattern eth / ipv4 / udp dst is 7000 / end actions dec_ttl / port_id id 1 / end flow create 0 transfer ingress pattern eth / ipv4 / udp dst is 7001 / end actions set_ttl ttl_value 10 / port_id id 1 / end Signed-off-by: Xiaoyu Min Acked-by: Yongseok Koh --- diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h index 094f6668fa..cccafe52de 100644 --- a/drivers/net/mlx5/mlx5_flow.h +++ b/drivers/net/mlx5/mlx5_flow.h @@ -85,6 +85,8 @@ #define MLX5_FLOW_ACTION_SET_TP_SRC (1u << 15) #define MLX5_FLOW_ACTION_SET_TP_DST (1u << 16) #define MLX5_FLOW_ACTION_JUMP (1u << 17) +#define MLX5_FLOW_ACTION_SET_TTL (1u << 18) +#define MLX5_FLOW_ACTION_DEC_TTL (1u << 19) #define MLX5_FLOW_FATE_ACTIONS \ (MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS) diff --git a/drivers/net/mlx5/mlx5_flow_tcf.c b/drivers/net/mlx5/mlx5_flow_tcf.c index 4b51a854e8..3adcf189ea 100644 --- a/drivers/net/mlx5/mlx5_flow_tcf.c +++ b/drivers/net/mlx5/mlx5_flow_tcf.c @@ -231,6 +231,10 @@ struct tc_pedit_sel { #define TP_PORT_LEN 2 /* Transport Port (UDP/TCP) Length */ #endif +#ifndef TTL_LEN +#define TTL_LEN 1 +#endif + /** Empty masks for known item types. */ static const union { struct rte_flow_item_port_id port_id; @@ -319,12 +323,14 @@ struct flow_tcf_ptoi { #define MLX5_TCF_PEDIT_ACTIONS \ (MLX5_FLOW_ACTION_SET_IPV4_SRC | MLX5_FLOW_ACTION_SET_IPV4_DST | \ MLX5_FLOW_ACTION_SET_IPV6_SRC | MLX5_FLOW_ACTION_SET_IPV6_DST | \ - MLX5_FLOW_ACTION_SET_TP_SRC | MLX5_FLOW_ACTION_SET_TP_DST) + MLX5_FLOW_ACTION_SET_TP_SRC | MLX5_FLOW_ACTION_SET_TP_DST | \ + MLX5_FLOW_ACTION_SET_TTL | MLX5_FLOW_ACTION_DEC_TTL) #define MLX5_TCF_CONFIG_ACTIONS \ (MLX5_FLOW_ACTION_PORT_ID | MLX5_FLOW_ACTION_JUMP | \ MLX5_FLOW_ACTION_OF_PUSH_VLAN | MLX5_FLOW_ACTION_OF_SET_VLAN_VID | \ - MLX5_FLOW_ACTION_OF_SET_VLAN_PCP | MLX5_TCF_PEDIT_ACTIONS) + MLX5_FLOW_ACTION_OF_SET_VLAN_PCP | \ + (MLX5_TCF_PEDIT_ACTIONS & ~MLX5_FLOW_ACTION_DEC_TTL)) #define MAX_PEDIT_KEYS 128 #define SZ_PEDIT_KEY_VAL 4 @@ -344,6 +350,46 @@ struct pedit_parser { }; +/** + * Set pedit key of decrease/set ttl + * + * @param[in] actions + * pointer to action specification + * @param[in,out] p_parser + * pointer to pedit_parser + * @param[in] item_flags + * flags of all items presented + */ +static void +flow_tcf_pedit_key_set_dec_ttl(const struct rte_flow_action *actions, + struct pedit_parser *p_parser, + uint64_t item_flags) +{ + int idx = p_parser->sel.nkeys; + + p_parser->keys[idx].mask = 0xFFFFFF00; + if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4) { + p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP4; + p_parser->keys[idx].off = + offsetof(struct ipv4_hdr, time_to_live); + } + if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV6) { + p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6; + p_parser->keys[idx].off = + offsetof(struct ipv6_hdr, hop_limits); + } + if (actions->type == RTE_FLOW_ACTION_TYPE_DEC_TTL) { + p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_ADD; + p_parser->keys[idx].val = 0x000000FF; + } else { + p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET; + p_parser->keys[idx].val = + (__u32)((const struct rte_flow_action_set_ttl *) + actions->conf)->ttl_value; + } + p_parser->sel.nkeys = (++idx); +} + /** * Set pedit key of transport (TCP/UDP) port value * @@ -479,6 +525,11 @@ flow_tcf_create_pedit_mnl_msg(struct nlmsghdr *nl, flow_tcf_pedit_key_set_tp_port(*actions, &p_parser, item_flags); break; + case RTE_FLOW_ACTION_TYPE_SET_TTL: + case RTE_FLOW_ACTION_TYPE_DEC_TTL: + flow_tcf_pedit_key_set_dec_ttl(*actions, + &p_parser, item_flags); + break; default: goto pedit_mnl_msg_done; } @@ -559,6 +610,14 @@ flow_tcf_get_pedit_actions_size(const struct rte_flow_action **actions, keys += NUM_OF_PEDIT_KEYS(TP_PORT_LEN); flags |= MLX5_FLOW_ACTION_SET_TP_DST; break; + case RTE_FLOW_ACTION_TYPE_SET_TTL: + keys += NUM_OF_PEDIT_KEYS(TTL_LEN); + flags |= MLX5_FLOW_ACTION_SET_TTL; + break; + case RTE_FLOW_ACTION_TYPE_DEC_TTL: + keys += NUM_OF_PEDIT_KEYS(TTL_LEN); + flags |= MLX5_FLOW_ACTION_DEC_TTL; + break; default: goto get_pedit_action_size_done; } @@ -1096,6 +1155,12 @@ flow_tcf_validate(struct rte_eth_dev *dev, case RTE_FLOW_ACTION_TYPE_SET_TP_DST: current_action_flag = MLX5_FLOW_ACTION_SET_TP_DST; break; + case RTE_FLOW_ACTION_TYPE_SET_TTL: + current_action_flag = MLX5_FLOW_ACTION_SET_TTL; + break; + case RTE_FLOW_ACTION_TYPE_DEC_TTL: + current_action_flag = MLX5_FLOW_ACTION_DEC_TTL; + break; default: return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, @@ -1198,6 +1263,16 @@ flow_tcf_validate(struct rte_eth_dev *dev, return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "no fate action is found"); + if (action_flags & + (MLX5_FLOW_ACTION_SET_TTL | MLX5_FLOW_ACTION_DEC_TTL)) { + if (!(item_flags & + (MLX5_FLOW_LAYER_OUTER_L3_IPV4 | + MLX5_FLOW_LAYER_OUTER_L3_IPV6))) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, + actions, + "no IP found in pattern"); + } return 0; } @@ -1357,6 +1432,8 @@ action_of_vlan: case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST: case RTE_FLOW_ACTION_TYPE_SET_TP_SRC: case RTE_FLOW_ACTION_TYPE_SET_TP_DST: + case RTE_FLOW_ACTION_TYPE_SET_TTL: + case RTE_FLOW_ACTION_TYPE_DEC_TTL: size += flow_tcf_get_pedit_actions_size(&actions, &flags); break; @@ -1933,6 +2010,8 @@ override_na_vlan_priority: case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST: case RTE_FLOW_ACTION_TYPE_SET_TP_SRC: case RTE_FLOW_ACTION_TYPE_SET_TP_DST: + case RTE_FLOW_ACTION_TYPE_SET_TTL: + case RTE_FLOW_ACTION_TYPE_DEC_TTL: na_act_index = mnl_attr_nest_start(nlh, na_act_index_cur++); flow_tcf_create_pedit_mnl_msg(nlh,