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 void cxgb4_process_flow_actions(struct net_device *in, 112 struct flow_action *actions, 113 struct ch_filter_specification *fs); 114 int cxgb4_validate_flow_actions(struct net_device *dev, 115 struct flow_action *actions, 116 struct netlink_ext_ack *extack, 117 u8 matchall_filter); 118 119 int cxgb4_tc_flower_replace(struct net_device *dev, 120 struct flow_cls_offload *cls); 121 int cxgb4_tc_flower_destroy(struct net_device *dev, 122 struct flow_cls_offload *cls); 123 int cxgb4_tc_flower_stats(struct net_device *dev, 124 struct flow_cls_offload *cls); 125 int cxgb4_flow_rule_replace(struct net_device *dev, struct flow_rule *rule, 126 u32 tc_prio, struct netlink_ext_ack *extack, 127 struct ch_filter_specification *fs, u32 *tid); 128 int cxgb4_flow_rule_destroy(struct net_device *dev, u32 tc_prio, 129 struct ch_filter_specification *fs, int tid); 130 131 int cxgb4_init_tc_flower(struct adapter *adap); 132 void cxgb4_cleanup_tc_flower(struct adapter *adap); 133 #endif /* __CXGB4_TC_FLOWER_H */ 134