1 | /* |
2 | * This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux. |
3 | * |
4 | * Copyright (c) 2017 Chelsio Communications, Inc. All rights reserved. |
5 | * |
6 | * This software is available to you under a choice of one of two |
7 | * licenses. You may choose to be licensed under the terms of the GNU |
8 | * General Public License (GPL) Version 2, available from the file |
9 | * COPYING in the main directory of this source tree, or the |
10 | * OpenIB.org BSD license below: |
11 | * |
12 | * Redistribution and use in source and binary forms, with or |
13 | * without modification, are permitted provided that the following |
14 | * conditions are met: |
15 | * |
16 | * - Redistributions of source code must retain the above |
17 | * copyright notice, this list of conditions and the following |
18 | * disclaimer. |
19 | * |
20 | * - Redistributions in binary form must reproduce the above |
21 | * copyright notice, this list of conditions and the following |
22 | * disclaimer in the documentation and/or other materials |
23 | * provided with the distribution. |
24 | * |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
32 | * SOFTWARE. |
33 | */ |
34 | |
35 | #ifndef __CXGB4_TC_FLOWER_H |
36 | #define __CXGB4_TC_FLOWER_H |
37 | |
38 | #include <net/pkt_cls.h> |
39 | |
40 | struct ch_tc_flower_stats { |
41 | u64 prev_packet_count; |
42 | u64 packet_count; |
43 | u64 byte_count; |
44 | u64 last_used; |
45 | }; |
46 | |
47 | struct ch_tc_flower_entry { |
48 | struct ch_filter_specification fs; |
49 | struct ch_tc_flower_stats stats; |
50 | unsigned long tc_flower_cookie; |
51 | struct rhash_head node; |
52 | struct rcu_head rcu; |
53 | spinlock_t lock; /* lock for stats */ |
54 | u32 filter_id; |
55 | }; |
56 | |
57 | enum { |
58 | ETH_DMAC_31_0, /* dmac bits 0.. 31 */ |
59 | ETH_DMAC_47_32, /* dmac bits 32..47 */ |
60 | ETH_SMAC_15_0, /* smac bits 0.. 15 */ |
61 | ETH_SMAC_47_16, /* smac bits 16..47 */ |
62 | |
63 | IP4_SRC, /* 32-bit IPv4 src */ |
64 | IP4_DST, /* 32-bit IPv4 dst */ |
65 | |
66 | IP6_SRC_31_0, /* src bits 0.. 31 */ |
67 | IP6_SRC_63_32, /* src bits 63.. 32 */ |
68 | IP6_SRC_95_64, /* src bits 95.. 64 */ |
69 | IP6_SRC_127_96, /* src bits 127..96 */ |
70 | |
71 | IP6_DST_31_0, /* dst bits 0.. 31 */ |
72 | IP6_DST_63_32, /* dst bits 63.. 32 */ |
73 | IP6_DST_95_64, /* dst bits 95.. 64 */ |
74 | IP6_DST_127_96, /* dst bits 127..96 */ |
75 | |
76 | TCP_SPORT, /* 16-bit TCP sport */ |
77 | TCP_DPORT, /* 16-bit TCP dport */ |
78 | |
79 | UDP_SPORT, /* 16-bit UDP sport */ |
80 | UDP_DPORT, /* 16-bit UDP dport */ |
81 | }; |
82 | |
83 | struct ch_tc_pedit_fields { |
84 | u8 field; |
85 | u8 size; |
86 | u32 offset; |
87 | }; |
88 | |
89 | #define PEDIT_FIELDS(type, field, size, fs_field, offset) \ |
90 | { type## field, size, \ |
91 | offsetof(struct ch_filter_specification, fs_field) + (offset) } |
92 | |
93 | #define PEDIT_ETH_DMAC_MASK 0xffff |
94 | #define PEDIT_TCP_UDP_SPORT_MASK 0xffff |
95 | #define PEDIT_ETH_DMAC_31_0 0x0 |
96 | #define PEDIT_ETH_DMAC_47_32_SMAC_15_0 0x4 |
97 | #define PEDIT_ETH_SMAC_47_16 0x8 |
98 | #define PEDIT_IP4_SRC 0xC |
99 | #define PEDIT_IP4_DST 0x10 |
100 | #define PEDIT_IP6_SRC_31_0 0x8 |
101 | #define PEDIT_IP6_SRC_63_32 0xC |
102 | #define PEDIT_IP6_SRC_95_64 0x10 |
103 | #define PEDIT_IP6_SRC_127_96 0x14 |
104 | #define PEDIT_IP6_DST_31_0 0x18 |
105 | #define PEDIT_IP6_DST_63_32 0x1C |
106 | #define PEDIT_IP6_DST_95_64 0x20 |
107 | #define PEDIT_IP6_DST_127_96 0x24 |
108 | #define PEDIT_TCP_SPORT_DPORT 0x0 |
109 | #define PEDIT_UDP_SPORT_DPORT 0x0 |
110 | |
111 | enum cxgb4_action_natmode_flags { |
112 | CXGB4_ACTION_NATMODE_NONE = 0, |
113 | CXGB4_ACTION_NATMODE_DIP = (1 << 0), |
114 | CXGB4_ACTION_NATMODE_SIP = (1 << 1), |
115 | CXGB4_ACTION_NATMODE_DPORT = (1 << 2), |
116 | CXGB4_ACTION_NATMODE_SPORT = (1 << 3), |
117 | }; |
118 | |
119 | /* TC PEDIT action to NATMODE translation entry */ |
120 | struct cxgb4_natmode_config { |
121 | enum chip_type chip; |
122 | u8 flags; |
123 | u8 natmode; |
124 | }; |
125 | |
126 | void cxgb4_process_flow_actions(struct net_device *in, |
127 | struct flow_action *actions, |
128 | struct ch_filter_specification *fs); |
129 | int cxgb4_validate_flow_actions(struct net_device *dev, |
130 | struct flow_action *actions, |
131 | struct netlink_ext_ack *extack, |
132 | u8 matchall_filter); |
133 | |
134 | int cxgb4_tc_flower_replace(struct net_device *dev, |
135 | struct flow_cls_offload *cls); |
136 | int cxgb4_tc_flower_destroy(struct net_device *dev, |
137 | struct flow_cls_offload *cls); |
138 | int cxgb4_tc_flower_stats(struct net_device *dev, |
139 | struct flow_cls_offload *cls); |
140 | int cxgb4_flow_rule_replace(struct net_device *dev, struct flow_rule *rule, |
141 | u32 tc_prio, struct netlink_ext_ack *extack, |
142 | struct ch_filter_specification *fs, u32 *tid); |
143 | int cxgb4_flow_rule_destroy(struct net_device *dev, u32 tc_prio, |
144 | struct ch_filter_specification *fs, int tid); |
145 | |
146 | int cxgb4_init_tc_flower(struct adapter *adap); |
147 | void cxgb4_cleanup_tc_flower(struct adapter *adap); |
148 | #endif /* __CXGB4_TC_FLOWER_H */ |
149 | |