Amir Levy | 479cfdd | 2017-10-26 12:23:14 +0300 | [diff] [blame^] | 1 | /* Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #ifndef _IPAHAL_NAT_I_H_ |
| 14 | #define _IPAHAL_NAT_I_H_ |
| 15 | |
| 16 | #include <linux/msm_ipa.h> |
| 17 | |
| 18 | /* ----------------------- IPv4 NAT Table Entry ------------------------- |
| 19 | * |
| 20 | * ----------------------------------------------------------------------- |
| 21 | * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| 22 | * ----------------------------------------------------------------------- |
| 23 | * | Target IP(4B) | Private IP(4B) | |
| 24 | * ----------------------------------------------------------------------- |
| 25 | * |Target Port(2B) |Private Port(2B)| Public Port(2B) | Next Index(2B) | |
| 26 | * ----------------------------------------------------------------------- |
| 27 | * |Proto| TimeStamp(3B) | Flags(2B) |IP check sum Diff| |
| 28 | * |(1B) | |EN|Redirect|Resv | (2B) | |
| 29 | * ----------------------------------------------------------------------- |
| 30 | * |TCP/UDP checksum| PDN info(2B) | SW Specific Parameters(4B) | |
| 31 | * | diff (2B) |Info|Resv |index table entry| prev index | |
| 32 | * ----------------------------------------------------------------------- |
| 33 | */ |
| 34 | struct ipa_nat_hw_ipv4_entry { |
| 35 | /* An IP address can't be bit-field, because its address is used */ |
| 36 | u32 private_ip; |
| 37 | u32 target_ip; |
| 38 | |
| 39 | u32 next_index : 16; |
| 40 | u32 public_port : 16; |
| 41 | u32 private_port : 16; |
| 42 | u32 target_port : 16; |
| 43 | u32 ip_chksum : 16; |
| 44 | |
| 45 | u32 rsvd1 : 14; |
| 46 | u32 redirect : 1; |
| 47 | u32 enable : 1; |
| 48 | |
| 49 | u32 time_stamp : 24; |
| 50 | u32 protocol : 8; |
| 51 | |
| 52 | u32 prev_index : 16; |
| 53 | u32 indx_tbl_entry : 16; |
| 54 | |
| 55 | u32 rsvd2 : 12; |
| 56 | u32 pdn_index : 4; /* IPA 4.0 and greater */ |
| 57 | |
| 58 | u32 tcp_udp_chksum : 16; |
| 59 | }; |
| 60 | |
| 61 | /*--- IPV4 NAT Index Table Entry -- |
| 62 | *--------------------------------- |
| 63 | *| 3 | 2 | 1 | 0 | |
| 64 | *--------------------------------- |
| 65 | *|next index(2B) |table entry(2B)| |
| 66 | *--------------------------------- |
| 67 | */ |
| 68 | struct ipa_nat_hw_indx_entry { |
| 69 | u16 tbl_entry; |
| 70 | u16 next_index; |
| 71 | }; |
| 72 | |
| 73 | /** |
| 74 | * struct ipa_nat_hw_pdn_entry - IPA PDN config table entry |
| 75 | * @public_ip: the PDN's public ip |
| 76 | * @src_metadata: the PDN's metadata to be replaced for source NAT |
| 77 | * @dst_metadata: the PDN's metadata to be replaced for destination NAT |
| 78 | * @resrvd: reserved field |
| 79 | * --------------------------------- |
| 80 | * | 3 | 2 | 1 | 0 | |
| 81 | * --------------------------------- |
| 82 | * | public_ip (4B) | |
| 83 | * --------------------------------- |
| 84 | * | src_metadata (4B) | |
| 85 | * --------------------------------- |
| 86 | * | dst_metadata (4B) | |
| 87 | * --------------------------------- |
| 88 | * | resrvd (4B) | |
| 89 | * --------------------------------- |
| 90 | */ |
| 91 | struct ipa_nat_hw_pdn_entry { |
| 92 | u32 public_ip; |
| 93 | u32 src_metadata; |
| 94 | u32 dst_metadata; |
| 95 | u32 resrvd; |
| 96 | }; |
| 97 | |
| 98 | /*------------------------- IPV6CT Table Entry ------------------------------ |
| 99 | *----------------------------------------------------------------------------- |
| 100 | *| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| 101 | *----------------------------------------------------------------------------- |
| 102 | *| Outbound Src IPv6 Address (8 LSB Bytes) | |
| 103 | *----------------------------------------------------------------------------- |
| 104 | *| Outbound Src IPv6 Address (8 MSB Bytes) | |
| 105 | *----------------------------------------------------------------------------- |
| 106 | *| Outbound Dest IPv6 Address (8 LSB Bytes) | |
| 107 | *----------------------------------------------------------------------------- |
| 108 | *| Outbound Dest IPv6 Address (8 MSB Bytes) | |
| 109 | *----------------------------------------------------------------------------- |
| 110 | *|Protocol| TimeStamp (3B) | Flags (2B) |Reserved (2B) | |
| 111 | *| (1B) | |Enable|Redirect|Resv | | |
| 112 | *----------------------------------------------------------------------------- |
| 113 | *|Reserved|Direction(1B)|Src Port(2B)| Dest Port (2B) |Next Index(2B)| |
| 114 | *| (1B) |IN|OUT|Resv | | | | |
| 115 | *----------------------------------------------------------------------------- |
| 116 | *| SW Specific Parameters(4B) | Reserved (4B) | |
| 117 | *| Prev Index (2B) |Reserved(2B)| | |
| 118 | *----------------------------------------------------------------------------- |
| 119 | *| Reserved (8B) | |
| 120 | *----------------------------------------------------------------------------- |
| 121 | */ |
| 122 | struct ipa_nat_hw_ipv6ct_entry { |
| 123 | /* An IP address can't be bit-field, because its address is used */ |
| 124 | u64 src_ipv6_lsb; |
| 125 | u64 src_ipv6_msb; |
| 126 | u64 dest_ipv6_lsb; |
| 127 | u64 dest_ipv6_msb; |
| 128 | |
| 129 | u64 rsvd1 : 30; |
| 130 | u64 redirect : 1; |
| 131 | u64 enable : 1; |
| 132 | |
| 133 | u64 time_stamp : 24; |
| 134 | u64 protocol : 8; |
| 135 | |
| 136 | u64 next_index : 16; |
| 137 | u64 dest_port : 16; |
| 138 | u64 src_port : 16; |
| 139 | u64 rsvd2 : 6; |
| 140 | u64 out_allowed : 1; |
| 141 | u64 in_allowed : 1; |
| 142 | u64 rsvd3 : 8; |
| 143 | |
| 144 | u64 rsvd4 : 48; |
| 145 | u64 prev_index : 16; |
| 146 | |
| 147 | u64 rsvd5 : 64; |
| 148 | }; |
| 149 | |
| 150 | int ipahal_nat_init(enum ipa_hw_type ipa_hw_type); |
| 151 | |
| 152 | #endif /* _IPAHAL_NAT_I_H_ */ |
| 153 | |