From 21174f2a5cf93fe92fac74ea5a93b51b67e5dd38 Mon Sep 17 00:00:00 2001 From: Adrien Mazarguil Date: Fri, 13 Jul 2018 11:40:47 +0200 Subject: [PATCH] net/mlx5: add port ID pattern item to switch flow rules This enables flow rules to match traffic coming from a different DPDK port ID associated with the device (PORT_ID pattern item), mainly for the convenience of applications that want to deal with a single port ID for all flow rules associated with some physical device. Testpmd example: - Creating a flow rule on port ID 1 to consume all traffic from port ID 0 and direct it to port ID 2: flow create 1 ingress transfer pattern port_id id is 0 / end actions port_id id 2 / end Signed-off-by: Adrien Mazarguil Acked-by: Nelio Laranjeiro Acked-by: Yongseok Koh --- drivers/net/mlx5/mlx5_nl_flow.c | 57 ++++++++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-) diff --git a/drivers/net/mlx5/mlx5_nl_flow.c b/drivers/net/mlx5/mlx5_nl_flow.c index 6c7bf7119f..9bad1a418b 100644 --- a/drivers/net/mlx5/mlx5_nl_flow.c +++ b/drivers/net/mlx5/mlx5_nl_flow.c @@ -154,6 +154,7 @@ enum mlx5_nl_flow_trans { ATTR, PATTERN, ITEM_VOID, + ITEM_PORT_ID, ITEM_ETH, ITEM_VLAN, ITEM_IPV4, @@ -174,7 +175,7 @@ enum mlx5_nl_flow_trans { #define TRANS(...) (const enum mlx5_nl_flow_trans []){ __VA_ARGS__, INVALID, } #define PATTERN_COMMON \ - ITEM_VOID, ACTIONS + ITEM_VOID, ITEM_PORT_ID, ACTIONS #define ACTIONS_COMMON \ ACTION_VOID, ACTION_OF_POP_VLAN, ACTION_OF_PUSH_VLAN, \ ACTION_OF_SET_VLAN_VID, ACTION_OF_SET_VLAN_PCP @@ -188,6 +189,7 @@ static const enum mlx5_nl_flow_trans *const mlx5_nl_flow_trans[] = { [ATTR] = TRANS(PATTERN), [PATTERN] = TRANS(ITEM_ETH, PATTERN_COMMON), [ITEM_VOID] = TRANS(BACK), + [ITEM_PORT_ID] = TRANS(BACK), [ITEM_ETH] = TRANS(ITEM_IPV4, ITEM_IPV6, ITEM_VLAN, PATTERN_COMMON), [ITEM_VLAN] = TRANS(ITEM_IPV4, ITEM_IPV6, PATTERN_COMMON), [ITEM_IPV4] = TRANS(ITEM_TCP, ITEM_UDP, PATTERN_COMMON), @@ -207,6 +209,7 @@ static const enum mlx5_nl_flow_trans *const mlx5_nl_flow_trans[] = { /** Empty masks for known item types. */ static const union { + struct rte_flow_item_port_id port_id; struct rte_flow_item_eth eth; struct rte_flow_item_vlan vlan; struct rte_flow_item_ipv4 ipv4; @@ -217,6 +220,7 @@ static const union { /** Supported masks for known item types. */ static const struct { + struct rte_flow_item_port_id port_id; struct rte_flow_item_eth eth; struct rte_flow_item_vlan vlan; struct rte_flow_item_ipv4 ipv4; @@ -224,6 +228,9 @@ static const struct { struct rte_flow_item_tcp tcp; struct rte_flow_item_udp udp; } mlx5_nl_flow_mask_supported = { + .port_id = { + .id = 0xffffffff, + }, .eth = { .type = RTE_BE16(0xffff), .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", @@ -378,6 +385,7 @@ mlx5_nl_flow_transpose(void *buf, const struct rte_flow_action *action; unsigned int n; uint32_t act_index_cur; + bool in_port_id_set; bool eth_type_set; bool vlan_present; bool vlan_eth_type_set; @@ -396,6 +404,7 @@ init: action = actions; n = 0; act_index_cur = 0; + in_port_id_set = false; eth_type_set = false; vlan_present = false; vlan_eth_type_set = false; @@ -409,6 +418,7 @@ init: trans: switch (trans[n++]) { union { + const struct rte_flow_item_port_id *port_id; const struct rte_flow_item_eth *eth; const struct rte_flow_item_vlan *vlan; const struct rte_flow_item_ipv4 *ipv4; @@ -510,6 +520,51 @@ trans: goto trans; ++item; break; + case ITEM_PORT_ID: + if (item->type != RTE_FLOW_ITEM_TYPE_PORT_ID) + goto trans; + mask.port_id = mlx5_nl_flow_item_mask + (item, &rte_flow_item_port_id_mask, + &mlx5_nl_flow_mask_supported.port_id, + &mlx5_nl_flow_mask_empty.port_id, + sizeof(mlx5_nl_flow_mask_supported.port_id), error); + if (!mask.port_id) + return -rte_errno; + if (mask.port_id == &mlx5_nl_flow_mask_empty.port_id) { + in_port_id_set = 1; + ++item; + break; + } + spec.port_id = item->spec; + if (mask.port_id->id && mask.port_id->id != 0xffffffff) + return rte_flow_error_set + (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM_MASK, + mask.port_id, + "no support for partial mask on" + " \"id\" field"); + if (!mask.port_id->id) + i = 0; + else + for (i = 0; ptoi[i].ifindex; ++i) + if (ptoi[i].port_id == spec.port_id->id) + break; + if (!ptoi[i].ifindex) + return rte_flow_error_set + (error, ENODEV, RTE_FLOW_ERROR_TYPE_ITEM_SPEC, + spec.port_id, + "missing data to convert port ID to ifindex"); + tcm = mnl_nlmsg_get_payload(buf); + if (in_port_id_set && + ptoi[i].ifindex != (unsigned int)tcm->tcm_ifindex) + return rte_flow_error_set + (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM_SPEC, + spec.port_id, + "cannot match traffic for several port IDs" + " through a single flow rule"); + tcm->tcm_ifindex = ptoi[i].ifindex; + in_port_id_set = 1; + ++item; + break; case ITEM_ETH: if (item->type != RTE_FLOW_ITEM_TYPE_ETH) goto trans; -- 2.20.1