1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Header Parser definitions for Marvell PPv2 Network Controller 4 * 5 * Copyright (C) 2014 Marvell 6 * 7 * Marcin Wojtas <mw@semihalf.com> 8 */ 9 #ifndef _MVPP2_PRS_H_ 10 #define _MVPP2_PRS_H_ 11 12 #include <linux/kernel.h> 13 #include <linux/netdevice.h> 14 #include <linux/platform_device.h> 15 16 #include "mvpp2.h" 17 18 /* Parser constants */ 19 #define MVPP2_PRS_TCAM_SRAM_SIZE 256 20 #define MVPP2_PRS_TCAM_WORDS 6 21 #define MVPP2_PRS_SRAM_WORDS 4 22 #define MVPP2_PRS_FLOW_ID_SIZE 64 23 #define MVPP2_PRS_FLOW_ID_MASK 0x3f 24 #define MVPP2_PRS_TCAM_ENTRY_INVALID 1 25 #define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5) 26 #define MVPP2_PRS_IPV4_HEAD 0x40 27 #define MVPP2_PRS_IPV4_HEAD_MASK 0xf0 28 #define MVPP2_PRS_IPV4_MC 0xe0 29 #define MVPP2_PRS_IPV4_MC_MASK 0xf0 30 #define MVPP2_PRS_IPV4_BC_MASK 0xff 31 #define MVPP2_PRS_IPV4_IHL 0x5 32 #define MVPP2_PRS_IPV4_IHL_MASK 0xf 33 #define MVPP2_PRS_IPV6_MC 0xff 34 #define MVPP2_PRS_IPV6_MC_MASK 0xff 35 #define MVPP2_PRS_IPV6_HOP_MASK 0xff 36 #define MVPP2_PRS_TCAM_PROTO_MASK 0xff 37 #define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f 38 #define MVPP2_PRS_DBL_VLANS_MAX 100 39 #define MVPP2_PRS_CAST_MASK BIT(0) 40 #define MVPP2_PRS_MCAST_VAL BIT(0) 41 #define MVPP2_PRS_UCAST_VAL 0x0 42 43 /* Tcam structure: 44 * - lookup ID - 4 bits 45 * - port ID - 1 byte 46 * - additional information - 1 byte 47 * - header data - 8 bytes 48 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0). 49 */ 50 #define MVPP2_PRS_AI_BITS 8 51 #define MVPP2_PRS_AI_MASK 0xff 52 #define MVPP2_PRS_PORT_MASK 0xff 53 #define MVPP2_PRS_LU_MASK 0xf 54 55 /* TCAM entries in registers are accessed using 16 data bits + 16 enable bits */ 56 #define MVPP2_PRS_BYTE_TO_WORD(byte) ((byte) / 2) 57 #define MVPP2_PRS_BYTE_IN_WORD(byte) ((byte) % 2) 58 59 #define MVPP2_PRS_TCAM_EN(data) ((data) << 16) 60 #define MVPP2_PRS_TCAM_AI_WORD 4 61 #define MVPP2_PRS_TCAM_AI(ai) (ai) 62 #define MVPP2_PRS_TCAM_AI_EN(ai) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_AI(ai)) 63 #define MVPP2_PRS_TCAM_PORT_WORD 4 64 #define MVPP2_PRS_TCAM_PORT(p) ((p) << 8) 65 #define MVPP2_PRS_TCAM_PORT_EN(p) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_PORT(p)) 66 #define MVPP2_PRS_TCAM_LU_WORD 5 67 #define MVPP2_PRS_TCAM_LU(lu) (lu) 68 #define MVPP2_PRS_TCAM_LU_EN(lu) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_LU(lu)) 69 #define MVPP2_PRS_TCAM_INV_WORD 5 70 71 #define MVPP2_PRS_VID_TCAM_BYTE 2 72 73 /* TCAM range for unicast and multicast filtering. We have 25 entries per port, 74 * with 4 dedicated to UC filtering and the rest to multicast filtering. 75 * Additionnally we reserve one entry for the broadcast address, and one for 76 * each port's own address. 77 */ 78 #define MVPP2_PRS_MAC_UC_MC_FILT_MAX 25 79 #define MVPP2_PRS_MAC_RANGE_SIZE 80 80 81 /* Number of entries per port dedicated to UC and MC filtering */ 82 #define MVPP2_PRS_MAC_UC_FILT_MAX 4 83 #define MVPP2_PRS_MAC_MC_FILT_MAX (MVPP2_PRS_MAC_UC_MC_FILT_MAX - \ 84 MVPP2_PRS_MAC_UC_FILT_MAX) 85 86 /* There is a TCAM range reserved for VLAN filtering entries, range size is 33 87 * 10 VLAN ID filter entries per port 88 * 1 default VLAN filter entry per port 89 * It is assumed that there are 3 ports for filter, not including loopback port 90 */ 91 #define MVPP2_PRS_VLAN_FILT_MAX 11 92 #define MVPP2_PRS_VLAN_FILT_RANGE_SIZE 33 93 94 #define MVPP2_PRS_VLAN_FILT_MAX_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 2) 95 #define MVPP2_PRS_VLAN_FILT_DFLT_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 1) 96 97 /* Tcam entries ID */ 98 #define MVPP2_PE_DROP_ALL 0 99 #define MVPP2_PE_FIRST_FREE_TID 1 100 101 /* MAC filtering range */ 102 #define MVPP2_PE_MAC_RANGE_END (MVPP2_PE_VID_FILT_RANGE_START - 1) 103 #define MVPP2_PE_MAC_RANGE_START (MVPP2_PE_MAC_RANGE_END - \ 104 MVPP2_PRS_MAC_RANGE_SIZE + 1) 105 /* VLAN filtering range */ 106 #define MVPP2_PE_VID_FILT_RANGE_END (MVPP2_PRS_TCAM_SRAM_SIZE - 31) 107 #define MVPP2_PE_VID_FILT_RANGE_START (MVPP2_PE_VID_FILT_RANGE_END - \ 108 MVPP2_PRS_VLAN_FILT_RANGE_SIZE + 1) 109 #define MVPP2_PE_LAST_FREE_TID (MVPP2_PE_MAC_RANGE_START - 1) 110 #define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30) 111 #define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 29) 112 #define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28) 113 #define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 27) 114 #define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 22) 115 #define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 21) 116 #define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 20) 117 #define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 19) 118 #define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18) 119 #define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17) 120 #define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16) 121 #define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15) 122 #define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14) 123 #define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 13) 124 #define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 12) 125 #define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 11) 126 #define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 10) 127 #define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 9) 128 #define MVPP2_PE_VID_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 8) 129 #define MVPP2_PE_VID_EDSA_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 7) 130 #define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 6) 131 #define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 5) 132 /* reserved */ 133 #define MVPP2_PE_MAC_MC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 3) 134 #define MVPP2_PE_MAC_UC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2) 135 #define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1) 136 137 #define MVPP2_PRS_VID_PORT_FIRST(port) (MVPP2_PE_VID_FILT_RANGE_START + \ 138 ((port) * MVPP2_PRS_VLAN_FILT_MAX)) 139 #define MVPP2_PRS_VID_PORT_LAST(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ 140 + MVPP2_PRS_VLAN_FILT_MAX_ENTRY) 141 /* Index of default vid filter for given port */ 142 #define MVPP2_PRS_VID_PORT_DFLT(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ 143 + MVPP2_PRS_VLAN_FILT_DFLT_ENTRY) 144 145 /* Sram structure 146 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0). 147 */ 148 #define MVPP2_PRS_SRAM_RI_OFFS 0 149 #define MVPP2_PRS_SRAM_RI_WORD 0 150 #define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32 151 #define MVPP2_PRS_SRAM_RI_CTRL_WORD 1 152 #define MVPP2_PRS_SRAM_RI_CTRL_BITS 32 153 #define MVPP2_PRS_SRAM_SHIFT_OFFS 64 154 #define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72 155 #define MVPP2_PRS_SRAM_SHIFT_MASK 0xff 156 #define MVPP2_PRS_SRAM_UDF_OFFS 73 157 #define MVPP2_PRS_SRAM_UDF_BITS 8 158 #define MVPP2_PRS_SRAM_UDF_MASK 0xff 159 #define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81 160 #define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82 161 #define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7 162 #define MVPP2_PRS_SRAM_UDF_TYPE_L3 1 163 #define MVPP2_PRS_SRAM_UDF_TYPE_L4 4 164 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85 165 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3 166 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1 167 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2 168 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3 169 #define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87 170 #define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2 171 #define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3 172 #define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0 173 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2 174 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3 175 #define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89 176 #define MVPP2_PRS_SRAM_AI_OFFS 90 177 #define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98 178 #define MVPP2_PRS_SRAM_AI_CTRL_BITS 8 179 #define MVPP2_PRS_SRAM_AI_MASK 0xff 180 #define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106 181 #define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf 182 #define MVPP2_PRS_SRAM_LU_DONE_BIT 110 183 #define MVPP2_PRS_SRAM_LU_GEN_BIT 111 184 185 /* Sram result info bits assignment */ 186 #define MVPP2_PRS_RI_MAC_ME_MASK 0x1 187 #define MVPP2_PRS_RI_DSA_MASK 0x2 188 #define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3)) 189 #define MVPP2_PRS_RI_VLAN_NONE 0x0 190 #define MVPP2_PRS_RI_VLAN_SINGLE BIT(2) 191 #define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3) 192 #define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3)) 193 #define MVPP2_PRS_RI_CPU_CODE_MASK 0x70 194 #define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4) 195 #define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10)) 196 #define MVPP2_PRS_RI_L2_UCAST 0x0 197 #define MVPP2_PRS_RI_L2_MCAST BIT(9) 198 #define MVPP2_PRS_RI_L2_BCAST BIT(10) 199 #define MVPP2_PRS_RI_PPPOE_MASK 0x800 200 #define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14)) 201 #define MVPP2_PRS_RI_L3_UN 0x0 202 #define MVPP2_PRS_RI_L3_IP4 BIT(12) 203 #define MVPP2_PRS_RI_L3_IP4_OPT BIT(13) 204 #define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13)) 205 #define MVPP2_PRS_RI_L3_IP6 BIT(14) 206 #define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14)) 207 #define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14)) 208 #define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16)) 209 #define MVPP2_PRS_RI_L3_UCAST 0x0 210 #define MVPP2_PRS_RI_L3_MCAST BIT(15) 211 #define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16)) 212 #define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000 213 #define MVPP2_PRS_RI_IP_FRAG_TRUE BIT(17) 214 #define MVPP2_PRS_RI_UDF3_MASK 0x300000 215 #define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21) 216 #define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000 217 #define MVPP2_PRS_RI_L4_TCP BIT(22) 218 #define MVPP2_PRS_RI_L4_UDP BIT(23) 219 #define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23)) 220 #define MVPP2_PRS_RI_UDF7_MASK 0x60000000 221 #define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29) 222 #define MVPP2_PRS_RI_DROP_MASK 0x80000000 223 224 #define MVPP2_PRS_IP_MASK (MVPP2_PRS_RI_L3_PROTO_MASK | \ 225 MVPP2_PRS_RI_IP_FRAG_MASK | \ 226 MVPP2_PRS_RI_L4_PROTO_MASK) 227 228 /* Sram additional info bits assignment */ 229 #define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0) 230 #define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0) 231 #define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1) 232 #define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2) 233 #define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3) 234 #define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4) 235 #define MVPP2_PRS_SINGLE_VLAN_AI 0 236 #define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7) 237 #define MVPP2_PRS_EDSA_VID_AI_BIT BIT(0) 238 239 /* DSA/EDSA type */ 240 #define MVPP2_PRS_TAGGED true 241 #define MVPP2_PRS_UNTAGGED false 242 #define MVPP2_PRS_EDSA true 243 #define MVPP2_PRS_DSA false 244 245 /* MAC entries, shadow udf */ 246 enum mvpp2_prs_udf { 247 MVPP2_PRS_UDF_MAC_DEF, 248 MVPP2_PRS_UDF_MAC_RANGE, 249 MVPP2_PRS_UDF_L2_DEF, 250 MVPP2_PRS_UDF_L2_DEF_COPY, 251 MVPP2_PRS_UDF_L2_USER, 252 }; 253 254 /* Lookup ID */ 255 enum mvpp2_prs_lookup { 256 MVPP2_PRS_LU_MH, 257 MVPP2_PRS_LU_MAC, 258 MVPP2_PRS_LU_DSA, 259 MVPP2_PRS_LU_VLAN, 260 MVPP2_PRS_LU_VID, 261 MVPP2_PRS_LU_L2, 262 MVPP2_PRS_LU_PPPOE, 263 MVPP2_PRS_LU_IP4, 264 MVPP2_PRS_LU_IP6, 265 MVPP2_PRS_LU_FLOWS, 266 MVPP2_PRS_LU_LAST, 267 }; 268 269 struct mvpp2_prs_entry { 270 u32 index; 271 u32 tcam[MVPP2_PRS_TCAM_WORDS]; 272 u32 sram[MVPP2_PRS_SRAM_WORDS]; 273 }; 274 275 struct mvpp2_prs_result_info { 276 u32 ri; 277 u32 ri_mask; 278 }; 279 280 struct mvpp2_prs_shadow { 281 bool valid; 282 bool finish; 283 284 /* Lookup ID */ 285 int lu; 286 287 /* User defined offset */ 288 int udf; 289 290 /* Result info */ 291 u32 ri; 292 u32 ri_mask; 293 }; 294 295 int mvpp2_prs_default_init(struct platform_device *pdev, struct mvpp2 *priv); 296 297 int mvpp2_prs_init_from_hw(struct mvpp2 *priv, struct mvpp2_prs_entry *pe, 298 int tid); 299 300 unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe); 301 302 void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe, 303 unsigned int offs, unsigned char *byte, 304 unsigned char *enable); 305 306 int mvpp2_prs_mac_da_accept(struct mvpp2_port *port, const u8 *da, bool add); 307 308 int mvpp2_prs_tag_mode_set(struct mvpp2 *priv, int port, int type); 309 310 int mvpp2_prs_add_flow(struct mvpp2 *priv, int flow, u32 ri, u32 ri_mask); 311 312 int mvpp2_prs_def_flow(struct mvpp2_port *port); 313 314 void mvpp2_prs_vid_enable_filtering(struct mvpp2_port *port); 315 316 void mvpp2_prs_vid_disable_filtering(struct mvpp2_port *port); 317 318 int mvpp2_prs_vid_entry_add(struct mvpp2_port *port, u16 vid); 319 320 void mvpp2_prs_vid_entry_remove(struct mvpp2_port *port, u16 vid); 321 322 void mvpp2_prs_vid_remove_all(struct mvpp2_port *port); 323 324 void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, 325 enum mvpp2_prs_l2_cast l2_cast, bool add); 326 327 void mvpp2_prs_mac_del_all(struct mvpp2_port *port); 328 329 int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da); 330 331 int mvpp2_prs_hits(struct mvpp2 *priv, int index); 332 333 #endif 334