1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019, Intel Corporation. */ 3 4 #include "ice_common.h" 5 #include "ice_flow.h" 6 7 /* Describe properties of a protocol header field */ 8 struct ice_flow_field_info { 9 enum ice_flow_seg_hdr hdr; 10 s16 off; /* Offset from start of a protocol header, in bits */ 11 u16 size; /* Size of fields in bits */ 12 u16 mask; /* 16-bit mask for field */ 13 }; 14 15 #define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \ 16 .hdr = _hdr, \ 17 .off = (_offset_bytes) * BITS_PER_BYTE, \ 18 .size = (_size_bytes) * BITS_PER_BYTE, \ 19 .mask = 0, \ 20 } 21 22 #define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \ 23 .hdr = _hdr, \ 24 .off = (_offset_bytes) * BITS_PER_BYTE, \ 25 .size = (_size_bytes) * BITS_PER_BYTE, \ 26 .mask = _mask, \ 27 } 28 29 /* Table containing properties of supported protocol header fields */ 30 static const 31 struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = { 32 /* Ether */ 33 /* ICE_FLOW_FIELD_IDX_ETH_DA */ 34 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN), 35 /* ICE_FLOW_FIELD_IDX_ETH_SA */ 36 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN), 37 /* ICE_FLOW_FIELD_IDX_S_VLAN */ 38 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, sizeof(__be16)), 39 /* ICE_FLOW_FIELD_IDX_C_VLAN */ 40 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, sizeof(__be16)), 41 /* ICE_FLOW_FIELD_IDX_ETH_TYPE */ 42 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, sizeof(__be16)), 43 /* IPv4 / IPv6 */ 44 /* ICE_FLOW_FIELD_IDX_IPV4_DSCP */ 45 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV4, 0, 1, 0x00fc), 46 /* ICE_FLOW_FIELD_IDX_IPV6_DSCP */ 47 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV6, 0, 1, 0x0ff0), 48 /* ICE_FLOW_FIELD_IDX_IPV4_TTL */ 49 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0xff00), 50 /* ICE_FLOW_FIELD_IDX_IPV4_PROT */ 51 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0x00ff), 52 /* ICE_FLOW_FIELD_IDX_IPV6_TTL */ 53 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0x00ff), 54 /* ICE_FLOW_FIELD_IDX_IPV6_PROT */ 55 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0xff00), 56 /* ICE_FLOW_FIELD_IDX_IPV4_SA */ 57 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, sizeof(struct in_addr)), 58 /* ICE_FLOW_FIELD_IDX_IPV4_DA */ 59 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, sizeof(struct in_addr)), 60 /* ICE_FLOW_FIELD_IDX_IPV6_SA */ 61 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)), 62 /* ICE_FLOW_FIELD_IDX_IPV6_DA */ 63 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, sizeof(struct in6_addr)), 64 /* Transport */ 65 /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */ 66 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)), 67 /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */ 68 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, sizeof(__be16)), 69 /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */ 70 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, sizeof(__be16)), 71 /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */ 72 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, sizeof(__be16)), 73 /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */ 74 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, sizeof(__be16)), 75 /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */ 76 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)), 77 /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */ 78 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, 1), 79 /* ARP */ 80 /* ICE_FLOW_FIELD_IDX_ARP_SIP */ 81 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, sizeof(struct in_addr)), 82 /* ICE_FLOW_FIELD_IDX_ARP_DIP */ 83 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, sizeof(struct in_addr)), 84 /* ICE_FLOW_FIELD_IDX_ARP_SHA */ 85 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN), 86 /* ICE_FLOW_FIELD_IDX_ARP_DHA */ 87 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN), 88 /* ICE_FLOW_FIELD_IDX_ARP_OP */ 89 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, sizeof(__be16)), 90 /* ICMP */ 91 /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */ 92 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, 1), 93 /* ICE_FLOW_FIELD_IDX_ICMP_CODE */ 94 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, 1), 95 /* GRE */ 96 /* ICE_FLOW_FIELD_IDX_GRE_KEYID */ 97 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12, 98 sizeof_field(struct gre_full_hdr, key)), 99 /* GTP */ 100 /* ICE_FLOW_FIELD_IDX_GTPC_TEID */ 101 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPC_TEID, 12, sizeof(__be32)), 102 /* ICE_FLOW_FIELD_IDX_GTPU_IP_TEID */ 103 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_IP, 12, sizeof(__be32)), 104 /* ICE_FLOW_FIELD_IDX_GTPU_EH_TEID */ 105 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_EH, 12, sizeof(__be32)), 106 /* ICE_FLOW_FIELD_IDX_GTPU_EH_QFI */ 107 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_EH, 22, sizeof(__be16), 108 0x3f00), 109 /* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */ 110 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12, sizeof(__be32)), 111 /* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */ 112 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12, sizeof(__be32)), 113 /* PPPoE */ 114 /* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */ 115 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2, sizeof(__be16)), 116 /* PFCP */ 117 /* ICE_FLOW_FIELD_IDX_PFCP_SEID */ 118 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PFCP_SESSION, 12, sizeof(__be64)), 119 /* L2TPv3 */ 120 /* ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID */ 121 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV3, 0, sizeof(__be32)), 122 /* ESP */ 123 /* ICE_FLOW_FIELD_IDX_ESP_SPI */ 124 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ESP, 0, sizeof(__be32)), 125 /* AH */ 126 /* ICE_FLOW_FIELD_IDX_AH_SPI */ 127 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_AH, 4, sizeof(__be32)), 128 /* NAT_T_ESP */ 129 /* ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI */ 130 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8, sizeof(__be32)), 131 }; 132 133 /* Bitmaps indicating relevant packet types for a particular protocol header 134 * 135 * Packet types for packets with an Outer/First/Single MAC header 136 */ 137 static const u32 ice_ptypes_mac_ofos[] = { 138 0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB, 139 0x0000077E, 0x00000000, 0x00000000, 0x00000000, 140 0x00400000, 0x03FFF000, 0x7FFFFFE0, 0x00000000, 141 0x00000000, 0x00000000, 0x00000000, 0x00000000, 142 0x00000000, 0x00000000, 0x00000000, 0x00000000, 143 0x00000000, 0x00000000, 0x00000000, 0x00000000, 144 0x00000000, 0x00000000, 0x00000000, 0x00000000, 145 0x00000000, 0x00000000, 0x00000000, 0x00000000, 146 }; 147 148 /* Packet types for packets with an Innermost/Last MAC VLAN header */ 149 static const u32 ice_ptypes_macvlan_il[] = { 150 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000, 151 0x0000077E, 0x00000000, 0x00000000, 0x00000000, 152 0x00000000, 0x00000000, 0x00000000, 0x00000000, 153 0x00000000, 0x00000000, 0x00000000, 0x00000000, 154 0x00000000, 0x00000000, 0x00000000, 0x00000000, 155 0x00000000, 0x00000000, 0x00000000, 0x00000000, 156 0x00000000, 0x00000000, 0x00000000, 0x00000000, 157 0x00000000, 0x00000000, 0x00000000, 0x00000000, 158 }; 159 160 /* Packet types for packets with an Outer/First/Single IPv4 header, does NOT 161 * include IPv4 other PTYPEs 162 */ 163 static const u32 ice_ptypes_ipv4_ofos[] = { 164 0x1DC00000, 0x04000800, 0x00000000, 0x00000000, 165 0x00000000, 0x00000155, 0x00000000, 0x00000000, 166 0x00000000, 0x000FC000, 0x00000000, 0x00000000, 167 0x00000000, 0x00000000, 0x00000000, 0x00000000, 168 0x00000000, 0x00000000, 0x00000000, 0x00000000, 169 0x00000000, 0x00000000, 0x00000000, 0x00000000, 170 0x00000000, 0x00000000, 0x00000000, 0x00000000, 171 0x00000000, 0x00000000, 0x00000000, 0x00000000, 172 }; 173 174 /* Packet types for packets with an Outer/First/Single IPv4 header, includes 175 * IPv4 other PTYPEs 176 */ 177 static const u32 ice_ptypes_ipv4_ofos_all[] = { 178 0x1DC00000, 0x04000800, 0x00000000, 0x00000000, 179 0x00000000, 0x00000155, 0x00000000, 0x00000000, 180 0x00000000, 0x000FC000, 0x83E0F800, 0x00000101, 181 0x00000000, 0x00000000, 0x00000000, 0x00000000, 182 0x00000000, 0x00000000, 0x00000000, 0x00000000, 183 0x00000000, 0x00000000, 0x00000000, 0x00000000, 184 0x00000000, 0x00000000, 0x00000000, 0x00000000, 185 0x00000000, 0x00000000, 0x00000000, 0x00000000, 186 }; 187 188 /* Packet types for packets with an Innermost/Last IPv4 header */ 189 static const u32 ice_ptypes_ipv4_il[] = { 190 0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B, 191 0x0000000E, 0x00000000, 0x00000000, 0x00000000, 192 0x00000000, 0x00000000, 0x001FF800, 0x00000000, 193 0x00000000, 0x00000000, 0x00000000, 0x00000000, 194 0x00000000, 0x00000000, 0x00000000, 0x00000000, 195 0x00000000, 0x00000000, 0x00000000, 0x00000000, 196 0x00000000, 0x00000000, 0x00000000, 0x00000000, 197 0x00000000, 0x00000000, 0x00000000, 0x00000000, 198 }; 199 200 /* Packet types for packets with an Outer/First/Single IPv6 header, does NOT 201 * include IPv6 other PTYPEs 202 */ 203 static const u32 ice_ptypes_ipv6_ofos[] = { 204 0x00000000, 0x00000000, 0x77000000, 0x10002000, 205 0x00000000, 0x000002AA, 0x00000000, 0x00000000, 206 0x00000000, 0x03F00000, 0x00000000, 0x00000000, 207 0x00000000, 0x00000000, 0x00000000, 0x00000000, 208 0x00000000, 0x00000000, 0x00000000, 0x00000000, 209 0x00000000, 0x00000000, 0x00000000, 0x00000000, 210 0x00000000, 0x00000000, 0x00000000, 0x00000000, 211 0x00000000, 0x00000000, 0x00000000, 0x00000000, 212 }; 213 214 /* Packet types for packets with an Outer/First/Single IPv6 header, includes 215 * IPv6 other PTYPEs 216 */ 217 static const u32 ice_ptypes_ipv6_ofos_all[] = { 218 0x00000000, 0x00000000, 0x77000000, 0x10002000, 219 0x00000000, 0x000002AA, 0x00000000, 0x00000000, 220 0x00080F00, 0x03F00000, 0x7C1F0000, 0x00000206, 221 0x00000000, 0x00000000, 0x00000000, 0x00000000, 222 0x00000000, 0x00000000, 0x00000000, 0x00000000, 223 0x00000000, 0x00000000, 0x00000000, 0x00000000, 224 0x00000000, 0x00000000, 0x00000000, 0x00000000, 225 0x00000000, 0x00000000, 0x00000000, 0x00000000, 226 }; 227 228 /* Packet types for packets with an Innermost/Last IPv6 header */ 229 static const u32 ice_ptypes_ipv6_il[] = { 230 0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000, 231 0x00000770, 0x00000000, 0x00000000, 0x00000000, 232 0x00000000, 0x00000000, 0x7FE00000, 0x00000000, 233 0x00000000, 0x00000000, 0x00000000, 0x00000000, 234 0x00000000, 0x00000000, 0x00000000, 0x00000000, 235 0x00000000, 0x00000000, 0x00000000, 0x00000000, 236 0x00000000, 0x00000000, 0x00000000, 0x00000000, 237 0x00000000, 0x00000000, 0x00000000, 0x00000000, 238 }; 239 240 /* Packet types for packets with an Outer/First/Single IPv4 header - no L4 */ 241 static const u32 ice_ptypes_ipv4_ofos_no_l4[] = { 242 0x10C00000, 0x04000800, 0x00000000, 0x00000000, 243 0x00000000, 0x00000000, 0x00000000, 0x00000000, 244 0x00000000, 0x00000000, 0x00000000, 0x00000000, 245 0x00000000, 0x00000000, 0x00000000, 0x00000000, 246 0x00000000, 0x00000000, 0x00000000, 0x00000000, 247 0x00000000, 0x00000000, 0x00000000, 0x00000000, 248 0x00000000, 0x00000000, 0x00000000, 0x00000000, 249 0x00000000, 0x00000000, 0x00000000, 0x00000000, 250 }; 251 252 /* Packet types for packets with an Outermost/First ARP header */ 253 static const u32 ice_ptypes_arp_of[] = { 254 0x00000800, 0x00000000, 0x00000000, 0x00000000, 255 0x00000000, 0x00000000, 0x00000000, 0x00000000, 256 0x00000000, 0x00000000, 0x00000000, 0x00000000, 257 0x00000000, 0x00000000, 0x00000000, 0x00000000, 258 0x00000000, 0x00000000, 0x00000000, 0x00000000, 259 0x00000000, 0x00000000, 0x00000000, 0x00000000, 260 0x00000000, 0x00000000, 0x00000000, 0x00000000, 261 0x00000000, 0x00000000, 0x00000000, 0x00000000, 262 }; 263 264 /* Packet types for packets with an Innermost/Last IPv4 header - no L4 */ 265 static const u32 ice_ptypes_ipv4_il_no_l4[] = { 266 0x60000000, 0x18043008, 0x80000002, 0x6010c021, 267 0x00000008, 0x00000000, 0x00000000, 0x00000000, 268 0x00000000, 0x00000000, 0x00000000, 0x00000000, 269 0x00000000, 0x00000000, 0x00000000, 0x00000000, 270 0x00000000, 0x00000000, 0x00000000, 0x00000000, 271 0x00000000, 0x00000000, 0x00000000, 0x00000000, 272 0x00000000, 0x00000000, 0x00000000, 0x00000000, 273 0x00000000, 0x00000000, 0x00000000, 0x00000000, 274 }; 275 276 /* Packet types for packets with an Outer/First/Single IPv6 header - no L4 */ 277 static const u32 ice_ptypes_ipv6_ofos_no_l4[] = { 278 0x00000000, 0x00000000, 0x43000000, 0x10002000, 279 0x00000000, 0x00000000, 0x00000000, 0x00000000, 280 0x00000000, 0x00000000, 0x00000000, 0x00000000, 281 0x00000000, 0x00000000, 0x00000000, 0x00000000, 282 0x00000000, 0x00000000, 0x00000000, 0x00000000, 283 0x00000000, 0x00000000, 0x00000000, 0x00000000, 284 0x00000000, 0x00000000, 0x00000000, 0x00000000, 285 0x00000000, 0x00000000, 0x00000000, 0x00000000, 286 }; 287 288 /* Packet types for packets with an Innermost/Last IPv6 header - no L4 */ 289 static const u32 ice_ptypes_ipv6_il_no_l4[] = { 290 0x00000000, 0x02180430, 0x0000010c, 0x086010c0, 291 0x00000430, 0x00000000, 0x00000000, 0x00000000, 292 0x00000000, 0x00000000, 0x00000000, 0x00000000, 293 0x00000000, 0x00000000, 0x00000000, 0x00000000, 294 0x00000000, 0x00000000, 0x00000000, 0x00000000, 295 0x00000000, 0x00000000, 0x00000000, 0x00000000, 296 0x00000000, 0x00000000, 0x00000000, 0x00000000, 297 0x00000000, 0x00000000, 0x00000000, 0x00000000, 298 }; 299 300 /* UDP Packet types for non-tunneled packets or tunneled 301 * packets with inner UDP. 302 */ 303 static const u32 ice_ptypes_udp_il[] = { 304 0x81000000, 0x20204040, 0x04000010, 0x80810102, 305 0x00000040, 0x00000000, 0x00000000, 0x00000000, 306 0x00000000, 0x00410000, 0x90842000, 0x00000007, 307 0x00000000, 0x00000000, 0x00000000, 0x00000000, 308 0x00000000, 0x00000000, 0x00000000, 0x00000000, 309 0x00000000, 0x00000000, 0x00000000, 0x00000000, 310 0x00000000, 0x00000000, 0x00000000, 0x00000000, 311 0x00000000, 0x00000000, 0x00000000, 0x00000000, 312 }; 313 314 /* Packet types for packets with an Innermost/Last TCP header */ 315 static const u32 ice_ptypes_tcp_il[] = { 316 0x04000000, 0x80810102, 0x10000040, 0x02040408, 317 0x00000102, 0x00000000, 0x00000000, 0x00000000, 318 0x00000000, 0x00820000, 0x21084000, 0x00000000, 319 0x00000000, 0x00000000, 0x00000000, 0x00000000, 320 0x00000000, 0x00000000, 0x00000000, 0x00000000, 321 0x00000000, 0x00000000, 0x00000000, 0x00000000, 322 0x00000000, 0x00000000, 0x00000000, 0x00000000, 323 0x00000000, 0x00000000, 0x00000000, 0x00000000, 324 }; 325 326 /* Packet types for packets with an Innermost/Last SCTP header */ 327 static const u32 ice_ptypes_sctp_il[] = { 328 0x08000000, 0x01020204, 0x20000081, 0x04080810, 329 0x00000204, 0x00000000, 0x00000000, 0x00000000, 330 0x00000000, 0x01040000, 0x00000000, 0x00000000, 331 0x00000000, 0x00000000, 0x00000000, 0x00000000, 332 0x00000000, 0x00000000, 0x00000000, 0x00000000, 333 0x00000000, 0x00000000, 0x00000000, 0x00000000, 334 0x00000000, 0x00000000, 0x00000000, 0x00000000, 335 0x00000000, 0x00000000, 0x00000000, 0x00000000, 336 }; 337 338 /* Packet types for packets with an Outermost/First ICMP header */ 339 static const u32 ice_ptypes_icmp_of[] = { 340 0x10000000, 0x00000000, 0x00000000, 0x00000000, 341 0x00000000, 0x00000000, 0x00000000, 0x00000000, 342 0x00000000, 0x00000000, 0x00000000, 0x00000000, 343 0x00000000, 0x00000000, 0x00000000, 0x00000000, 344 0x00000000, 0x00000000, 0x00000000, 0x00000000, 345 0x00000000, 0x00000000, 0x00000000, 0x00000000, 346 0x00000000, 0x00000000, 0x00000000, 0x00000000, 347 0x00000000, 0x00000000, 0x00000000, 0x00000000, 348 }; 349 350 /* Packet types for packets with an Innermost/Last ICMP header */ 351 static const u32 ice_ptypes_icmp_il[] = { 352 0x00000000, 0x02040408, 0x40000102, 0x08101020, 353 0x00000408, 0x00000000, 0x00000000, 0x00000000, 354 0x00000000, 0x00000000, 0x42108000, 0x00000000, 355 0x00000000, 0x00000000, 0x00000000, 0x00000000, 356 0x00000000, 0x00000000, 0x00000000, 0x00000000, 357 0x00000000, 0x00000000, 0x00000000, 0x00000000, 358 0x00000000, 0x00000000, 0x00000000, 0x00000000, 359 0x00000000, 0x00000000, 0x00000000, 0x00000000, 360 }; 361 362 /* Packet types for packets with an Outermost/First GRE header */ 363 static const u32 ice_ptypes_gre_of[] = { 364 0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000, 365 0x0000017E, 0x00000000, 0x00000000, 0x00000000, 366 0x00000000, 0x00000000, 0x00000000, 0x00000000, 367 0x00000000, 0x00000000, 0x00000000, 0x00000000, 368 0x00000000, 0x00000000, 0x00000000, 0x00000000, 369 0x00000000, 0x00000000, 0x00000000, 0x00000000, 370 0x00000000, 0x00000000, 0x00000000, 0x00000000, 371 0x00000000, 0x00000000, 0x00000000, 0x00000000, 372 }; 373 374 /* Packet types for packets with an Innermost/Last MAC header */ 375 static const u32 ice_ptypes_mac_il[] = { 376 0x00000000, 0x00000000, 0x00000000, 0x00000000, 377 0x00000000, 0x00000000, 0x00000000, 0x00000000, 378 0x00000000, 0x00000000, 0x00000000, 0x00000000, 379 0x00000000, 0x00000000, 0x00000000, 0x00000000, 380 0x00000000, 0x00000000, 0x00000000, 0x00000000, 381 0x00000000, 0x00000000, 0x00000000, 0x00000000, 382 0x00000000, 0x00000000, 0x00000000, 0x00000000, 383 0x00000000, 0x00000000, 0x00000000, 0x00000000, 384 }; 385 386 /* Packet types for GTPC */ 387 static const u32 ice_ptypes_gtpc[] = { 388 0x00000000, 0x00000000, 0x00000000, 0x00000000, 389 0x00000000, 0x00000000, 0x00000000, 0x00000000, 390 0x00000000, 0x00000000, 0x00000180, 0x00000000, 391 0x00000000, 0x00000000, 0x00000000, 0x00000000, 392 0x00000000, 0x00000000, 0x00000000, 0x00000000, 393 0x00000000, 0x00000000, 0x00000000, 0x00000000, 394 0x00000000, 0x00000000, 0x00000000, 0x00000000, 395 0x00000000, 0x00000000, 0x00000000, 0x00000000, 396 }; 397 398 /* Packet types for GTPC with TEID */ 399 static const u32 ice_ptypes_gtpc_tid[] = { 400 0x00000000, 0x00000000, 0x00000000, 0x00000000, 401 0x00000000, 0x00000000, 0x00000000, 0x00000000, 402 0x00000000, 0x00000000, 0x00000060, 0x00000000, 403 0x00000000, 0x00000000, 0x00000000, 0x00000000, 404 0x00000000, 0x00000000, 0x00000000, 0x00000000, 405 0x00000000, 0x00000000, 0x00000000, 0x00000000, 406 0x00000000, 0x00000000, 0x00000000, 0x00000000, 407 0x00000000, 0x00000000, 0x00000000, 0x00000000, 408 }; 409 410 /* Packet types for GTPU */ 411 static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = { 412 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, 413 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 414 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 415 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 416 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 417 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, 418 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 419 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 420 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 421 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 422 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, 423 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 424 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 425 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 426 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH }, 427 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, 428 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 429 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, 430 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, 431 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH }, 432 }; 433 434 static const struct ice_ptype_attributes ice_attr_gtpu_down[] = { 435 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 436 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 437 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 438 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 439 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 440 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 441 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 442 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 443 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 444 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 445 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 446 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 447 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 448 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 449 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 450 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 451 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 452 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 453 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 454 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK }, 455 }; 456 457 static const struct ice_ptype_attributes ice_attr_gtpu_up[] = { 458 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, 459 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 460 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 461 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, 462 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK }, 463 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, 464 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 465 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 466 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, 467 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK }, 468 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, 469 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 470 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 471 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, 472 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK }, 473 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, 474 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 475 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, 476 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, 477 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK }, 478 }; 479 480 static const u32 ice_ptypes_gtpu[] = { 481 0x00000000, 0x00000000, 0x00000000, 0x00000000, 482 0x00000000, 0x00000000, 0x00000000, 0x00000000, 483 0x00000000, 0x00000000, 0x7FFFFE00, 0x00000000, 484 0x00000000, 0x00000000, 0x00000000, 0x00000000, 485 0x00000000, 0x00000000, 0x00000000, 0x00000000, 486 0x00000000, 0x00000000, 0x00000000, 0x00000000, 487 0x00000000, 0x00000000, 0x00000000, 0x00000000, 488 0x00000000, 0x00000000, 0x00000000, 0x00000000, 489 }; 490 491 /* Packet types for PPPoE */ 492 static const u32 ice_ptypes_pppoe[] = { 493 0x00000000, 0x00000000, 0x00000000, 0x00000000, 494 0x00000000, 0x00000000, 0x00000000, 0x00000000, 495 0x00000000, 0x03ffe000, 0x00000000, 0x00000000, 496 0x00000000, 0x00000000, 0x00000000, 0x00000000, 497 0x00000000, 0x00000000, 0x00000000, 0x00000000, 498 0x00000000, 0x00000000, 0x00000000, 0x00000000, 499 0x00000000, 0x00000000, 0x00000000, 0x00000000, 500 0x00000000, 0x00000000, 0x00000000, 0x00000000, 501 }; 502 503 /* Packet types for packets with PFCP NODE header */ 504 static const u32 ice_ptypes_pfcp_node[] = { 505 0x00000000, 0x00000000, 0x00000000, 0x00000000, 506 0x00000000, 0x00000000, 0x00000000, 0x00000000, 507 0x00000000, 0x00000000, 0x80000000, 0x00000002, 508 0x00000000, 0x00000000, 0x00000000, 0x00000000, 509 0x00000000, 0x00000000, 0x00000000, 0x00000000, 510 0x00000000, 0x00000000, 0x00000000, 0x00000000, 511 0x00000000, 0x00000000, 0x00000000, 0x00000000, 512 0x00000000, 0x00000000, 0x00000000, 0x00000000, 513 }; 514 515 /* Packet types for packets with PFCP SESSION header */ 516 static const u32 ice_ptypes_pfcp_session[] = { 517 0x00000000, 0x00000000, 0x00000000, 0x00000000, 518 0x00000000, 0x00000000, 0x00000000, 0x00000000, 519 0x00000000, 0x00000000, 0x00000000, 0x00000005, 520 0x00000000, 0x00000000, 0x00000000, 0x00000000, 521 0x00000000, 0x00000000, 0x00000000, 0x00000000, 522 0x00000000, 0x00000000, 0x00000000, 0x00000000, 523 0x00000000, 0x00000000, 0x00000000, 0x00000000, 524 0x00000000, 0x00000000, 0x00000000, 0x00000000, 525 }; 526 527 /* Packet types for L2TPv3 */ 528 static const u32 ice_ptypes_l2tpv3[] = { 529 0x00000000, 0x00000000, 0x00000000, 0x00000000, 530 0x00000000, 0x00000000, 0x00000000, 0x00000000, 531 0x00000000, 0x00000000, 0x00000000, 0x00000300, 532 0x00000000, 0x00000000, 0x00000000, 0x00000000, 533 0x00000000, 0x00000000, 0x00000000, 0x00000000, 534 0x00000000, 0x00000000, 0x00000000, 0x00000000, 535 0x00000000, 0x00000000, 0x00000000, 0x00000000, 536 0x00000000, 0x00000000, 0x00000000, 0x00000000, 537 }; 538 539 /* Packet types for ESP */ 540 static const u32 ice_ptypes_esp[] = { 541 0x00000000, 0x00000000, 0x00000000, 0x00000000, 542 0x00000000, 0x00000003, 0x00000000, 0x00000000, 543 0x00000000, 0x00000000, 0x00000000, 0x00000000, 544 0x00000000, 0x00000000, 0x00000000, 0x00000000, 545 0x00000000, 0x00000000, 0x00000000, 0x00000000, 546 0x00000000, 0x00000000, 0x00000000, 0x00000000, 547 0x00000000, 0x00000000, 0x00000000, 0x00000000, 548 0x00000000, 0x00000000, 0x00000000, 0x00000000, 549 }; 550 551 /* Packet types for AH */ 552 static const u32 ice_ptypes_ah[] = { 553 0x00000000, 0x00000000, 0x00000000, 0x00000000, 554 0x00000000, 0x0000000C, 0x00000000, 0x00000000, 555 0x00000000, 0x00000000, 0x00000000, 0x00000000, 556 0x00000000, 0x00000000, 0x00000000, 0x00000000, 557 0x00000000, 0x00000000, 0x00000000, 0x00000000, 558 0x00000000, 0x00000000, 0x00000000, 0x00000000, 559 0x00000000, 0x00000000, 0x00000000, 0x00000000, 560 0x00000000, 0x00000000, 0x00000000, 0x00000000, 561 }; 562 563 /* Packet types for packets with NAT_T ESP header */ 564 static const u32 ice_ptypes_nat_t_esp[] = { 565 0x00000000, 0x00000000, 0x00000000, 0x00000000, 566 0x00000000, 0x00000030, 0x00000000, 0x00000000, 567 0x00000000, 0x00000000, 0x00000000, 0x00000000, 568 0x00000000, 0x00000000, 0x00000000, 0x00000000, 569 0x00000000, 0x00000000, 0x00000000, 0x00000000, 570 0x00000000, 0x00000000, 0x00000000, 0x00000000, 571 0x00000000, 0x00000000, 0x00000000, 0x00000000, 572 0x00000000, 0x00000000, 0x00000000, 0x00000000, 573 }; 574 575 static const u32 ice_ptypes_mac_non_ip_ofos[] = { 576 0x00000846, 0x00000000, 0x00000000, 0x00000000, 577 0x00000000, 0x00000000, 0x00000000, 0x00000000, 578 0x00400000, 0x03FFF000, 0x00000000, 0x00000000, 579 0x00000000, 0x00000000, 0x00000000, 0x00000000, 580 0x00000000, 0x00000000, 0x00000000, 0x00000000, 581 0x00000000, 0x00000000, 0x00000000, 0x00000000, 582 0x00000000, 0x00000000, 0x00000000, 0x00000000, 583 0x00000000, 0x00000000, 0x00000000, 0x00000000, 584 }; 585 586 /* Manage parameters and info. used during the creation of a flow profile */ 587 struct ice_flow_prof_params { 588 enum ice_block blk; 589 u16 entry_length; /* # of bytes formatted entry will require */ 590 u8 es_cnt; 591 struct ice_flow_prof *prof; 592 593 /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0 594 * This will give us the direction flags. 595 */ 596 struct ice_fv_word es[ICE_MAX_FV_WORDS]; 597 /* attributes can be used to add attributes to a particular PTYPE */ 598 const struct ice_ptype_attributes *attr; 599 u16 attr_cnt; 600 601 u16 mask[ICE_MAX_FV_WORDS]; 602 DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX); 603 }; 604 605 #define ICE_FLOW_RSS_HDRS_INNER_MASK \ 606 (ICE_FLOW_SEG_HDR_PPPOE | ICE_FLOW_SEG_HDR_GTPC | \ 607 ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_GTPU | \ 608 ICE_FLOW_SEG_HDR_PFCP_SESSION | ICE_FLOW_SEG_HDR_L2TPV3 | \ 609 ICE_FLOW_SEG_HDR_ESP | ICE_FLOW_SEG_HDR_AH | \ 610 ICE_FLOW_SEG_HDR_NAT_T_ESP) 611 612 #define ICE_FLOW_SEG_HDRS_L2_MASK \ 613 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN) 614 #define ICE_FLOW_SEG_HDRS_L3_MASK \ 615 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP) 616 #define ICE_FLOW_SEG_HDRS_L4_MASK \ 617 (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \ 618 ICE_FLOW_SEG_HDR_SCTP) 619 /* mask for L4 protocols that are NOT part of IPv4/6 OTHER PTYPE groups */ 620 #define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER \ 621 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) 622 623 /** 624 * ice_flow_val_hdrs - validates packet segments for valid protocol headers 625 * @segs: array of one or more packet segments that describe the flow 626 * @segs_cnt: number of packet segments provided 627 */ 628 static enum ice_status 629 ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt) 630 { 631 u8 i; 632 633 for (i = 0; i < segs_cnt; i++) { 634 /* Multiple L3 headers */ 635 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK && 636 !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK)) 637 return ICE_ERR_PARAM; 638 639 /* Multiple L4 headers */ 640 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK && 641 !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)) 642 return ICE_ERR_PARAM; 643 } 644 645 return 0; 646 } 647 648 /* Sizes of fixed known protocol headers without header options */ 649 #define ICE_FLOW_PROT_HDR_SZ_MAC 14 650 #define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2) 651 #define ICE_FLOW_PROT_HDR_SZ_IPV4 20 652 #define ICE_FLOW_PROT_HDR_SZ_IPV6 40 653 #define ICE_FLOW_PROT_HDR_SZ_ARP 28 654 #define ICE_FLOW_PROT_HDR_SZ_ICMP 8 655 #define ICE_FLOW_PROT_HDR_SZ_TCP 20 656 #define ICE_FLOW_PROT_HDR_SZ_UDP 8 657 #define ICE_FLOW_PROT_HDR_SZ_SCTP 12 658 659 /** 660 * ice_flow_calc_seg_sz - calculates size of a packet segment based on headers 661 * @params: information about the flow to be processed 662 * @seg: index of packet segment whose header size is to be determined 663 */ 664 static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg) 665 { 666 u16 sz; 667 668 /* L2 headers */ 669 sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ? 670 ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC; 671 672 /* L3 headers */ 673 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) 674 sz += ICE_FLOW_PROT_HDR_SZ_IPV4; 675 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6) 676 sz += ICE_FLOW_PROT_HDR_SZ_IPV6; 677 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP) 678 sz += ICE_FLOW_PROT_HDR_SZ_ARP; 679 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK) 680 /* An L3 header is required if L4 is specified */ 681 return 0; 682 683 /* L4 headers */ 684 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP) 685 sz += ICE_FLOW_PROT_HDR_SZ_ICMP; 686 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP) 687 sz += ICE_FLOW_PROT_HDR_SZ_TCP; 688 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP) 689 sz += ICE_FLOW_PROT_HDR_SZ_UDP; 690 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP) 691 sz += ICE_FLOW_PROT_HDR_SZ_SCTP; 692 693 return sz; 694 } 695 696 /** 697 * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments 698 * @params: information about the flow to be processed 699 * 700 * This function identifies the packet types associated with the protocol 701 * headers being present in packet segments of the specified flow profile. 702 */ 703 static enum ice_status 704 ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params) 705 { 706 struct ice_flow_prof *prof; 707 u8 i; 708 709 memset(params->ptypes, 0xff, sizeof(params->ptypes)); 710 711 prof = params->prof; 712 713 for (i = 0; i < params->prof->segs_cnt; i++) { 714 const unsigned long *src; 715 u32 hdrs; 716 717 hdrs = prof->segs[i].hdrs; 718 719 if (hdrs & ICE_FLOW_SEG_HDR_ETH) { 720 src = !i ? (const unsigned long *)ice_ptypes_mac_ofos : 721 (const unsigned long *)ice_ptypes_mac_il; 722 bitmap_and(params->ptypes, params->ptypes, src, 723 ICE_FLOW_PTYPE_MAX); 724 } 725 726 if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) { 727 src = (const unsigned long *)ice_ptypes_macvlan_il; 728 bitmap_and(params->ptypes, params->ptypes, src, 729 ICE_FLOW_PTYPE_MAX); 730 } 731 732 if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) { 733 bitmap_and(params->ptypes, params->ptypes, 734 (const unsigned long *)ice_ptypes_arp_of, 735 ICE_FLOW_PTYPE_MAX); 736 } 737 738 if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && 739 (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { 740 src = i ? (const unsigned long *)ice_ptypes_ipv4_il : 741 (const unsigned long *)ice_ptypes_ipv4_ofos_all; 742 bitmap_and(params->ptypes, params->ptypes, src, 743 ICE_FLOW_PTYPE_MAX); 744 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && 745 (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { 746 src = i ? (const unsigned long *)ice_ptypes_ipv6_il : 747 (const unsigned long *)ice_ptypes_ipv6_ofos_all; 748 bitmap_and(params->ptypes, params->ptypes, src, 749 ICE_FLOW_PTYPE_MAX); 750 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && 751 !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { 752 src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos_no_l4 : 753 (const unsigned long *)ice_ptypes_ipv4_il_no_l4; 754 bitmap_and(params->ptypes, params->ptypes, src, 755 ICE_FLOW_PTYPE_MAX); 756 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) { 757 src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos : 758 (const unsigned long *)ice_ptypes_ipv4_il; 759 bitmap_and(params->ptypes, params->ptypes, src, 760 ICE_FLOW_PTYPE_MAX); 761 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && 762 !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { 763 src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos_no_l4 : 764 (const unsigned long *)ice_ptypes_ipv6_il_no_l4; 765 bitmap_and(params->ptypes, params->ptypes, src, 766 ICE_FLOW_PTYPE_MAX); 767 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) { 768 src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos : 769 (const unsigned long *)ice_ptypes_ipv6_il; 770 bitmap_and(params->ptypes, params->ptypes, src, 771 ICE_FLOW_PTYPE_MAX); 772 } 773 774 if (hdrs & ICE_FLOW_SEG_HDR_ETH_NON_IP) { 775 src = (const unsigned long *)ice_ptypes_mac_non_ip_ofos; 776 bitmap_and(params->ptypes, params->ptypes, src, 777 ICE_FLOW_PTYPE_MAX); 778 } else if (hdrs & ICE_FLOW_SEG_HDR_PPPOE) { 779 src = (const unsigned long *)ice_ptypes_pppoe; 780 bitmap_and(params->ptypes, params->ptypes, src, 781 ICE_FLOW_PTYPE_MAX); 782 } else { 783 src = (const unsigned long *)ice_ptypes_pppoe; 784 bitmap_andnot(params->ptypes, params->ptypes, src, 785 ICE_FLOW_PTYPE_MAX); 786 } 787 788 if (hdrs & ICE_FLOW_SEG_HDR_UDP) { 789 src = (const unsigned long *)ice_ptypes_udp_il; 790 bitmap_and(params->ptypes, params->ptypes, src, 791 ICE_FLOW_PTYPE_MAX); 792 } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) { 793 bitmap_and(params->ptypes, params->ptypes, 794 (const unsigned long *)ice_ptypes_tcp_il, 795 ICE_FLOW_PTYPE_MAX); 796 } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) { 797 src = (const unsigned long *)ice_ptypes_sctp_il; 798 bitmap_and(params->ptypes, params->ptypes, src, 799 ICE_FLOW_PTYPE_MAX); 800 } 801 802 if (hdrs & ICE_FLOW_SEG_HDR_ICMP) { 803 src = !i ? (const unsigned long *)ice_ptypes_icmp_of : 804 (const unsigned long *)ice_ptypes_icmp_il; 805 bitmap_and(params->ptypes, params->ptypes, src, 806 ICE_FLOW_PTYPE_MAX); 807 } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) { 808 if (!i) { 809 src = (const unsigned long *)ice_ptypes_gre_of; 810 bitmap_and(params->ptypes, params->ptypes, 811 src, ICE_FLOW_PTYPE_MAX); 812 } 813 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC) { 814 src = (const unsigned long *)ice_ptypes_gtpc; 815 bitmap_and(params->ptypes, params->ptypes, src, 816 ICE_FLOW_PTYPE_MAX); 817 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC_TEID) { 818 src = (const unsigned long *)ice_ptypes_gtpc_tid; 819 bitmap_and(params->ptypes, params->ptypes, src, 820 ICE_FLOW_PTYPE_MAX); 821 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_DWN) { 822 src = (const unsigned long *)ice_ptypes_gtpu; 823 bitmap_and(params->ptypes, params->ptypes, src, 824 ICE_FLOW_PTYPE_MAX); 825 826 /* Attributes for GTP packet with downlink */ 827 params->attr = ice_attr_gtpu_down; 828 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down); 829 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP) { 830 src = (const unsigned long *)ice_ptypes_gtpu; 831 bitmap_and(params->ptypes, params->ptypes, src, 832 ICE_FLOW_PTYPE_MAX); 833 834 /* Attributes for GTP packet with uplink */ 835 params->attr = ice_attr_gtpu_up; 836 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up); 837 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH) { 838 src = (const unsigned long *)ice_ptypes_gtpu; 839 bitmap_and(params->ptypes, params->ptypes, src, 840 ICE_FLOW_PTYPE_MAX); 841 842 /* Attributes for GTP packet with Extension Header */ 843 params->attr = ice_attr_gtpu_eh; 844 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_eh); 845 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) { 846 src = (const unsigned long *)ice_ptypes_gtpu; 847 bitmap_and(params->ptypes, params->ptypes, src, 848 ICE_FLOW_PTYPE_MAX); 849 } else if (hdrs & ICE_FLOW_SEG_HDR_L2TPV3) { 850 src = (const unsigned long *)ice_ptypes_l2tpv3; 851 bitmap_and(params->ptypes, params->ptypes, src, 852 ICE_FLOW_PTYPE_MAX); 853 } else if (hdrs & ICE_FLOW_SEG_HDR_ESP) { 854 src = (const unsigned long *)ice_ptypes_esp; 855 bitmap_and(params->ptypes, params->ptypes, src, 856 ICE_FLOW_PTYPE_MAX); 857 } else if (hdrs & ICE_FLOW_SEG_HDR_AH) { 858 src = (const unsigned long *)ice_ptypes_ah; 859 bitmap_and(params->ptypes, params->ptypes, src, 860 ICE_FLOW_PTYPE_MAX); 861 } else if (hdrs & ICE_FLOW_SEG_HDR_NAT_T_ESP) { 862 src = (const unsigned long *)ice_ptypes_nat_t_esp; 863 bitmap_and(params->ptypes, params->ptypes, src, 864 ICE_FLOW_PTYPE_MAX); 865 } 866 867 if (hdrs & ICE_FLOW_SEG_HDR_PFCP) { 868 if (hdrs & ICE_FLOW_SEG_HDR_PFCP_NODE) 869 src = (const unsigned long *)ice_ptypes_pfcp_node; 870 else 871 src = (const unsigned long *)ice_ptypes_pfcp_session; 872 873 bitmap_and(params->ptypes, params->ptypes, src, 874 ICE_FLOW_PTYPE_MAX); 875 } else { 876 src = (const unsigned long *)ice_ptypes_pfcp_node; 877 bitmap_andnot(params->ptypes, params->ptypes, src, 878 ICE_FLOW_PTYPE_MAX); 879 880 src = (const unsigned long *)ice_ptypes_pfcp_session; 881 bitmap_andnot(params->ptypes, params->ptypes, src, 882 ICE_FLOW_PTYPE_MAX); 883 } 884 } 885 886 return 0; 887 } 888 889 /** 890 * ice_flow_xtract_fld - Create an extraction sequence entry for the given field 891 * @hw: pointer to the HW struct 892 * @params: information about the flow to be processed 893 * @seg: packet segment index of the field to be extracted 894 * @fld: ID of field to be extracted 895 * @match: bit field of all fields 896 * 897 * This function determines the protocol ID, offset, and size of the given 898 * field. It then allocates one or more extraction sequence entries for the 899 * given field, and fill the entries with protocol ID and offset information. 900 */ 901 static enum ice_status 902 ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params, 903 u8 seg, enum ice_flow_field fld, u64 match) 904 { 905 enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX; 906 enum ice_prot_id prot_id = ICE_PROT_ID_INVAL; 907 u8 fv_words = hw->blk[params->blk].es.fvw; 908 struct ice_flow_fld_info *flds; 909 u16 cnt, ese_bits, i; 910 u16 sib_mask = 0; 911 u16 mask; 912 u16 off; 913 914 flds = params->prof->segs[seg].fields; 915 916 switch (fld) { 917 case ICE_FLOW_FIELD_IDX_ETH_DA: 918 case ICE_FLOW_FIELD_IDX_ETH_SA: 919 case ICE_FLOW_FIELD_IDX_S_VLAN: 920 case ICE_FLOW_FIELD_IDX_C_VLAN: 921 prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL; 922 break; 923 case ICE_FLOW_FIELD_IDX_ETH_TYPE: 924 prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL; 925 break; 926 case ICE_FLOW_FIELD_IDX_IPV4_DSCP: 927 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; 928 break; 929 case ICE_FLOW_FIELD_IDX_IPV6_DSCP: 930 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; 931 break; 932 case ICE_FLOW_FIELD_IDX_IPV4_TTL: 933 case ICE_FLOW_FIELD_IDX_IPV4_PROT: 934 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; 935 936 /* TTL and PROT share the same extraction seq. entry. 937 * Each is considered a sibling to the other in terms of sharing 938 * the same extraction sequence entry. 939 */ 940 if (fld == ICE_FLOW_FIELD_IDX_IPV4_TTL) 941 sib = ICE_FLOW_FIELD_IDX_IPV4_PROT; 942 else if (fld == ICE_FLOW_FIELD_IDX_IPV4_PROT) 943 sib = ICE_FLOW_FIELD_IDX_IPV4_TTL; 944 945 /* If the sibling field is also included, that field's 946 * mask needs to be included. 947 */ 948 if (match & BIT(sib)) 949 sib_mask = ice_flds_info[sib].mask; 950 break; 951 case ICE_FLOW_FIELD_IDX_IPV6_TTL: 952 case ICE_FLOW_FIELD_IDX_IPV6_PROT: 953 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; 954 955 /* TTL and PROT share the same extraction seq. entry. 956 * Each is considered a sibling to the other in terms of sharing 957 * the same extraction sequence entry. 958 */ 959 if (fld == ICE_FLOW_FIELD_IDX_IPV6_TTL) 960 sib = ICE_FLOW_FIELD_IDX_IPV6_PROT; 961 else if (fld == ICE_FLOW_FIELD_IDX_IPV6_PROT) 962 sib = ICE_FLOW_FIELD_IDX_IPV6_TTL; 963 964 /* If the sibling field is also included, that field's 965 * mask needs to be included. 966 */ 967 if (match & BIT(sib)) 968 sib_mask = ice_flds_info[sib].mask; 969 break; 970 case ICE_FLOW_FIELD_IDX_IPV4_SA: 971 case ICE_FLOW_FIELD_IDX_IPV4_DA: 972 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; 973 break; 974 case ICE_FLOW_FIELD_IDX_IPV6_SA: 975 case ICE_FLOW_FIELD_IDX_IPV6_DA: 976 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; 977 break; 978 case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT: 979 case ICE_FLOW_FIELD_IDX_TCP_DST_PORT: 980 case ICE_FLOW_FIELD_IDX_TCP_FLAGS: 981 prot_id = ICE_PROT_TCP_IL; 982 break; 983 case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT: 984 case ICE_FLOW_FIELD_IDX_UDP_DST_PORT: 985 prot_id = ICE_PROT_UDP_IL_OR_S; 986 break; 987 case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT: 988 case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT: 989 prot_id = ICE_PROT_SCTP_IL; 990 break; 991 case ICE_FLOW_FIELD_IDX_GTPC_TEID: 992 case ICE_FLOW_FIELD_IDX_GTPU_IP_TEID: 993 case ICE_FLOW_FIELD_IDX_GTPU_UP_TEID: 994 case ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID: 995 case ICE_FLOW_FIELD_IDX_GTPU_EH_TEID: 996 case ICE_FLOW_FIELD_IDX_GTPU_EH_QFI: 997 /* GTP is accessed through UDP OF protocol */ 998 prot_id = ICE_PROT_UDP_OF; 999 break; 1000 case ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID: 1001 prot_id = ICE_PROT_PPPOE; 1002 break; 1003 case ICE_FLOW_FIELD_IDX_PFCP_SEID: 1004 prot_id = ICE_PROT_UDP_IL_OR_S; 1005 break; 1006 case ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID: 1007 prot_id = ICE_PROT_L2TPV3; 1008 break; 1009 case ICE_FLOW_FIELD_IDX_ESP_SPI: 1010 prot_id = ICE_PROT_ESP_F; 1011 break; 1012 case ICE_FLOW_FIELD_IDX_AH_SPI: 1013 prot_id = ICE_PROT_ESP_2; 1014 break; 1015 case ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI: 1016 prot_id = ICE_PROT_UDP_IL_OR_S; 1017 break; 1018 case ICE_FLOW_FIELD_IDX_ARP_SIP: 1019 case ICE_FLOW_FIELD_IDX_ARP_DIP: 1020 case ICE_FLOW_FIELD_IDX_ARP_SHA: 1021 case ICE_FLOW_FIELD_IDX_ARP_DHA: 1022 case ICE_FLOW_FIELD_IDX_ARP_OP: 1023 prot_id = ICE_PROT_ARP_OF; 1024 break; 1025 case ICE_FLOW_FIELD_IDX_ICMP_TYPE: 1026 case ICE_FLOW_FIELD_IDX_ICMP_CODE: 1027 /* ICMP type and code share the same extraction seq. entry */ 1028 prot_id = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) ? 1029 ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL; 1030 sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ? 1031 ICE_FLOW_FIELD_IDX_ICMP_CODE : 1032 ICE_FLOW_FIELD_IDX_ICMP_TYPE; 1033 break; 1034 case ICE_FLOW_FIELD_IDX_GRE_KEYID: 1035 prot_id = ICE_PROT_GRE_OF; 1036 break; 1037 default: 1038 return ICE_ERR_NOT_IMPL; 1039 } 1040 1041 /* Each extraction sequence entry is a word in size, and extracts a 1042 * word-aligned offset from a protocol header. 1043 */ 1044 ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE; 1045 1046 flds[fld].xtrct.prot_id = prot_id; 1047 flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) * 1048 ICE_FLOW_FV_EXTRACT_SZ; 1049 flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits); 1050 flds[fld].xtrct.idx = params->es_cnt; 1051 flds[fld].xtrct.mask = ice_flds_info[fld].mask; 1052 1053 /* Adjust the next field-entry index after accommodating the number of 1054 * entries this field consumes 1055 */ 1056 cnt = DIV_ROUND_UP(flds[fld].xtrct.disp + ice_flds_info[fld].size, 1057 ese_bits); 1058 1059 /* Fill in the extraction sequence entries needed for this field */ 1060 off = flds[fld].xtrct.off; 1061 mask = flds[fld].xtrct.mask; 1062 for (i = 0; i < cnt; i++) { 1063 /* Only consume an extraction sequence entry if there is no 1064 * sibling field associated with this field or the sibling entry 1065 * already extracts the word shared with this field. 1066 */ 1067 if (sib == ICE_FLOW_FIELD_IDX_MAX || 1068 flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL || 1069 flds[sib].xtrct.off != off) { 1070 u8 idx; 1071 1072 /* Make sure the number of extraction sequence required 1073 * does not exceed the block's capability 1074 */ 1075 if (params->es_cnt >= fv_words) 1076 return ICE_ERR_MAX_LIMIT; 1077 1078 /* some blocks require a reversed field vector layout */ 1079 if (hw->blk[params->blk].es.reverse) 1080 idx = fv_words - params->es_cnt - 1; 1081 else 1082 idx = params->es_cnt; 1083 1084 params->es[idx].prot_id = prot_id; 1085 params->es[idx].off = off; 1086 params->mask[idx] = mask | sib_mask; 1087 params->es_cnt++; 1088 } 1089 1090 off += ICE_FLOW_FV_EXTRACT_SZ; 1091 } 1092 1093 return 0; 1094 } 1095 1096 /** 1097 * ice_flow_xtract_raws - Create extract sequence entries for raw bytes 1098 * @hw: pointer to the HW struct 1099 * @params: information about the flow to be processed 1100 * @seg: index of packet segment whose raw fields are to be extracted 1101 */ 1102 static enum ice_status 1103 ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params, 1104 u8 seg) 1105 { 1106 u16 fv_words; 1107 u16 hdrs_sz; 1108 u8 i; 1109 1110 if (!params->prof->segs[seg].raws_cnt) 1111 return 0; 1112 1113 if (params->prof->segs[seg].raws_cnt > 1114 ARRAY_SIZE(params->prof->segs[seg].raws)) 1115 return ICE_ERR_MAX_LIMIT; 1116 1117 /* Offsets within the segment headers are not supported */ 1118 hdrs_sz = ice_flow_calc_seg_sz(params, seg); 1119 if (!hdrs_sz) 1120 return ICE_ERR_PARAM; 1121 1122 fv_words = hw->blk[params->blk].es.fvw; 1123 1124 for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) { 1125 struct ice_flow_seg_fld_raw *raw; 1126 u16 off, cnt, j; 1127 1128 raw = ¶ms->prof->segs[seg].raws[i]; 1129 1130 /* Storing extraction information */ 1131 raw->info.xtrct.prot_id = ICE_PROT_MAC_OF_OR_S; 1132 raw->info.xtrct.off = (raw->off / ICE_FLOW_FV_EXTRACT_SZ) * 1133 ICE_FLOW_FV_EXTRACT_SZ; 1134 raw->info.xtrct.disp = (raw->off % ICE_FLOW_FV_EXTRACT_SZ) * 1135 BITS_PER_BYTE; 1136 raw->info.xtrct.idx = params->es_cnt; 1137 1138 /* Determine the number of field vector entries this raw field 1139 * consumes. 1140 */ 1141 cnt = DIV_ROUND_UP(raw->info.xtrct.disp + 1142 (raw->info.src.last * BITS_PER_BYTE), 1143 (ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE)); 1144 off = raw->info.xtrct.off; 1145 for (j = 0; j < cnt; j++) { 1146 u16 idx; 1147 1148 /* Make sure the number of extraction sequence required 1149 * does not exceed the block's capability 1150 */ 1151 if (params->es_cnt >= hw->blk[params->blk].es.count || 1152 params->es_cnt >= ICE_MAX_FV_WORDS) 1153 return ICE_ERR_MAX_LIMIT; 1154 1155 /* some blocks require a reversed field vector layout */ 1156 if (hw->blk[params->blk].es.reverse) 1157 idx = fv_words - params->es_cnt - 1; 1158 else 1159 idx = params->es_cnt; 1160 1161 params->es[idx].prot_id = raw->info.xtrct.prot_id; 1162 params->es[idx].off = off; 1163 params->es_cnt++; 1164 off += ICE_FLOW_FV_EXTRACT_SZ; 1165 } 1166 } 1167 1168 return 0; 1169 } 1170 1171 /** 1172 * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments 1173 * @hw: pointer to the HW struct 1174 * @params: information about the flow to be processed 1175 * 1176 * This function iterates through all matched fields in the given segments, and 1177 * creates an extraction sequence for the fields. 1178 */ 1179 static enum ice_status 1180 ice_flow_create_xtrct_seq(struct ice_hw *hw, 1181 struct ice_flow_prof_params *params) 1182 { 1183 struct ice_flow_prof *prof = params->prof; 1184 enum ice_status status = 0; 1185 u8 i; 1186 1187 for (i = 0; i < prof->segs_cnt; i++) { 1188 u64 match = params->prof->segs[i].match; 1189 enum ice_flow_field j; 1190 1191 for_each_set_bit(j, (unsigned long *)&match, 1192 ICE_FLOW_FIELD_IDX_MAX) { 1193 status = ice_flow_xtract_fld(hw, params, i, j, match); 1194 if (status) 1195 return status; 1196 clear_bit(j, (unsigned long *)&match); 1197 } 1198 1199 /* Process raw matching bytes */ 1200 status = ice_flow_xtract_raws(hw, params, i); 1201 if (status) 1202 return status; 1203 } 1204 1205 return status; 1206 } 1207 1208 /** 1209 * ice_flow_proc_segs - process all packet segments associated with a profile 1210 * @hw: pointer to the HW struct 1211 * @params: information about the flow to be processed 1212 */ 1213 static enum ice_status 1214 ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) 1215 { 1216 enum ice_status status; 1217 1218 status = ice_flow_proc_seg_hdrs(params); 1219 if (status) 1220 return status; 1221 1222 status = ice_flow_create_xtrct_seq(hw, params); 1223 if (status) 1224 return status; 1225 1226 switch (params->blk) { 1227 case ICE_BLK_FD: 1228 case ICE_BLK_RSS: 1229 status = 0; 1230 break; 1231 default: 1232 return ICE_ERR_NOT_IMPL; 1233 } 1234 1235 return status; 1236 } 1237 1238 #define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001 1239 #define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002 1240 #define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004 1241 1242 /** 1243 * ice_flow_find_prof_conds - Find a profile matching headers and conditions 1244 * @hw: pointer to the HW struct 1245 * @blk: classification stage 1246 * @dir: flow direction 1247 * @segs: array of one or more packet segments that describe the flow 1248 * @segs_cnt: number of packet segments provided 1249 * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI) 1250 * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*) 1251 */ 1252 static struct ice_flow_prof * 1253 ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk, 1254 enum ice_flow_dir dir, struct ice_flow_seg_info *segs, 1255 u8 segs_cnt, u16 vsi_handle, u32 conds) 1256 { 1257 struct ice_flow_prof *p, *prof = NULL; 1258 1259 mutex_lock(&hw->fl_profs_locks[blk]); 1260 list_for_each_entry(p, &hw->fl_profs[blk], l_entry) 1261 if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) && 1262 segs_cnt && segs_cnt == p->segs_cnt) { 1263 u8 i; 1264 1265 /* Check for profile-VSI association if specified */ 1266 if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) && 1267 ice_is_vsi_valid(hw, vsi_handle) && 1268 !test_bit(vsi_handle, p->vsis)) 1269 continue; 1270 1271 /* Protocol headers must be checked. Matched fields are 1272 * checked if specified. 1273 */ 1274 for (i = 0; i < segs_cnt; i++) 1275 if (segs[i].hdrs != p->segs[i].hdrs || 1276 ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) && 1277 segs[i].match != p->segs[i].match)) 1278 break; 1279 1280 /* A match is found if all segments are matched */ 1281 if (i == segs_cnt) { 1282 prof = p; 1283 break; 1284 } 1285 } 1286 mutex_unlock(&hw->fl_profs_locks[blk]); 1287 1288 return prof; 1289 } 1290 1291 /** 1292 * ice_flow_find_prof_id - Look up a profile with given profile ID 1293 * @hw: pointer to the HW struct 1294 * @blk: classification stage 1295 * @prof_id: unique ID to identify this flow profile 1296 */ 1297 static struct ice_flow_prof * 1298 ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id) 1299 { 1300 struct ice_flow_prof *p; 1301 1302 list_for_each_entry(p, &hw->fl_profs[blk], l_entry) 1303 if (p->id == prof_id) 1304 return p; 1305 1306 return NULL; 1307 } 1308 1309 /** 1310 * ice_dealloc_flow_entry - Deallocate flow entry memory 1311 * @hw: pointer to the HW struct 1312 * @entry: flow entry to be removed 1313 */ 1314 static void 1315 ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry) 1316 { 1317 if (!entry) 1318 return; 1319 1320 if (entry->entry) 1321 devm_kfree(ice_hw_to_dev(hw), entry->entry); 1322 1323 devm_kfree(ice_hw_to_dev(hw), entry); 1324 } 1325 1326 /** 1327 * ice_flow_rem_entry_sync - Remove a flow entry 1328 * @hw: pointer to the HW struct 1329 * @blk: classification stage 1330 * @entry: flow entry to be removed 1331 */ 1332 static enum ice_status 1333 ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk, 1334 struct ice_flow_entry *entry) 1335 { 1336 if (!entry) 1337 return ICE_ERR_BAD_PTR; 1338 1339 list_del(&entry->l_entry); 1340 1341 ice_dealloc_flow_entry(hw, entry); 1342 1343 return 0; 1344 } 1345 1346 /** 1347 * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields 1348 * @hw: pointer to the HW struct 1349 * @blk: classification stage 1350 * @dir: flow direction 1351 * @prof_id: unique ID to identify this flow profile 1352 * @segs: array of one or more packet segments that describe the flow 1353 * @segs_cnt: number of packet segments provided 1354 * @prof: stores the returned flow profile added 1355 * 1356 * Assumption: the caller has acquired the lock to the profile list 1357 */ 1358 static enum ice_status 1359 ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, 1360 enum ice_flow_dir dir, u64 prof_id, 1361 struct ice_flow_seg_info *segs, u8 segs_cnt, 1362 struct ice_flow_prof **prof) 1363 { 1364 struct ice_flow_prof_params *params; 1365 enum ice_status status; 1366 u8 i; 1367 1368 if (!prof) 1369 return ICE_ERR_BAD_PTR; 1370 1371 params = kzalloc(sizeof(*params), GFP_KERNEL); 1372 if (!params) 1373 return ICE_ERR_NO_MEMORY; 1374 1375 params->prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*params->prof), 1376 GFP_KERNEL); 1377 if (!params->prof) { 1378 status = ICE_ERR_NO_MEMORY; 1379 goto free_params; 1380 } 1381 1382 /* initialize extraction sequence to all invalid (0xff) */ 1383 for (i = 0; i < ICE_MAX_FV_WORDS; i++) { 1384 params->es[i].prot_id = ICE_PROT_INVALID; 1385 params->es[i].off = ICE_FV_OFFSET_INVAL; 1386 } 1387 1388 params->blk = blk; 1389 params->prof->id = prof_id; 1390 params->prof->dir = dir; 1391 params->prof->segs_cnt = segs_cnt; 1392 1393 /* Make a copy of the segments that need to be persistent in the flow 1394 * profile instance 1395 */ 1396 for (i = 0; i < segs_cnt; i++) 1397 memcpy(¶ms->prof->segs[i], &segs[i], sizeof(*segs)); 1398 1399 status = ice_flow_proc_segs(hw, params); 1400 if (status) { 1401 ice_debug(hw, ICE_DBG_FLOW, "Error processing a flow's packet segments\n"); 1402 goto out; 1403 } 1404 1405 /* Add a HW profile for this flow profile */ 1406 status = ice_add_prof(hw, blk, prof_id, (u8 *)params->ptypes, 1407 params->attr, params->attr_cnt, params->es, 1408 params->mask); 1409 if (status) { 1410 ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n"); 1411 goto out; 1412 } 1413 1414 INIT_LIST_HEAD(¶ms->prof->entries); 1415 mutex_init(¶ms->prof->entries_lock); 1416 *prof = params->prof; 1417 1418 out: 1419 if (status) 1420 devm_kfree(ice_hw_to_dev(hw), params->prof); 1421 free_params: 1422 kfree(params); 1423 1424 return status; 1425 } 1426 1427 /** 1428 * ice_flow_rem_prof_sync - remove a flow profile 1429 * @hw: pointer to the hardware structure 1430 * @blk: classification stage 1431 * @prof: pointer to flow profile to remove 1432 * 1433 * Assumption: the caller has acquired the lock to the profile list 1434 */ 1435 static enum ice_status 1436 ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk, 1437 struct ice_flow_prof *prof) 1438 { 1439 enum ice_status status; 1440 1441 /* Remove all remaining flow entries before removing the flow profile */ 1442 if (!list_empty(&prof->entries)) { 1443 struct ice_flow_entry *e, *t; 1444 1445 mutex_lock(&prof->entries_lock); 1446 1447 list_for_each_entry_safe(e, t, &prof->entries, l_entry) { 1448 status = ice_flow_rem_entry_sync(hw, blk, e); 1449 if (status) 1450 break; 1451 } 1452 1453 mutex_unlock(&prof->entries_lock); 1454 } 1455 1456 /* Remove all hardware profiles associated with this flow profile */ 1457 status = ice_rem_prof(hw, blk, prof->id); 1458 if (!status) { 1459 list_del(&prof->l_entry); 1460 mutex_destroy(&prof->entries_lock); 1461 devm_kfree(ice_hw_to_dev(hw), prof); 1462 } 1463 1464 return status; 1465 } 1466 1467 /** 1468 * ice_flow_assoc_prof - associate a VSI with a flow profile 1469 * @hw: pointer to the hardware structure 1470 * @blk: classification stage 1471 * @prof: pointer to flow profile 1472 * @vsi_handle: software VSI handle 1473 * 1474 * Assumption: the caller has acquired the lock to the profile list 1475 * and the software VSI handle has been validated 1476 */ 1477 static enum ice_status 1478 ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk, 1479 struct ice_flow_prof *prof, u16 vsi_handle) 1480 { 1481 enum ice_status status = 0; 1482 1483 if (!test_bit(vsi_handle, prof->vsis)) { 1484 status = ice_add_prof_id_flow(hw, blk, 1485 ice_get_hw_vsi_num(hw, 1486 vsi_handle), 1487 prof->id); 1488 if (!status) 1489 set_bit(vsi_handle, prof->vsis); 1490 else 1491 ice_debug(hw, ICE_DBG_FLOW, "HW profile add failed, %d\n", 1492 status); 1493 } 1494 1495 return status; 1496 } 1497 1498 /** 1499 * ice_flow_disassoc_prof - disassociate a VSI from a flow profile 1500 * @hw: pointer to the hardware structure 1501 * @blk: classification stage 1502 * @prof: pointer to flow profile 1503 * @vsi_handle: software VSI handle 1504 * 1505 * Assumption: the caller has acquired the lock to the profile list 1506 * and the software VSI handle has been validated 1507 */ 1508 static enum ice_status 1509 ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, 1510 struct ice_flow_prof *prof, u16 vsi_handle) 1511 { 1512 enum ice_status status = 0; 1513 1514 if (test_bit(vsi_handle, prof->vsis)) { 1515 status = ice_rem_prof_id_flow(hw, blk, 1516 ice_get_hw_vsi_num(hw, 1517 vsi_handle), 1518 prof->id); 1519 if (!status) 1520 clear_bit(vsi_handle, prof->vsis); 1521 else 1522 ice_debug(hw, ICE_DBG_FLOW, "HW profile remove failed, %d\n", 1523 status); 1524 } 1525 1526 return status; 1527 } 1528 1529 /** 1530 * ice_flow_add_prof - Add a flow profile for packet segments and matched fields 1531 * @hw: pointer to the HW struct 1532 * @blk: classification stage 1533 * @dir: flow direction 1534 * @prof_id: unique ID to identify this flow profile 1535 * @segs: array of one or more packet segments that describe the flow 1536 * @segs_cnt: number of packet segments provided 1537 * @prof: stores the returned flow profile added 1538 */ 1539 enum ice_status 1540 ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, 1541 u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, 1542 struct ice_flow_prof **prof) 1543 { 1544 enum ice_status status; 1545 1546 if (segs_cnt > ICE_FLOW_SEG_MAX) 1547 return ICE_ERR_MAX_LIMIT; 1548 1549 if (!segs_cnt) 1550 return ICE_ERR_PARAM; 1551 1552 if (!segs) 1553 return ICE_ERR_BAD_PTR; 1554 1555 status = ice_flow_val_hdrs(segs, segs_cnt); 1556 if (status) 1557 return status; 1558 1559 mutex_lock(&hw->fl_profs_locks[blk]); 1560 1561 status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt, 1562 prof); 1563 if (!status) 1564 list_add(&(*prof)->l_entry, &hw->fl_profs[blk]); 1565 1566 mutex_unlock(&hw->fl_profs_locks[blk]); 1567 1568 return status; 1569 } 1570 1571 /** 1572 * ice_flow_rem_prof - Remove a flow profile and all entries associated with it 1573 * @hw: pointer to the HW struct 1574 * @blk: the block for which the flow profile is to be removed 1575 * @prof_id: unique ID of the flow profile to be removed 1576 */ 1577 enum ice_status 1578 ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id) 1579 { 1580 struct ice_flow_prof *prof; 1581 enum ice_status status; 1582 1583 mutex_lock(&hw->fl_profs_locks[blk]); 1584 1585 prof = ice_flow_find_prof_id(hw, blk, prof_id); 1586 if (!prof) { 1587 status = ICE_ERR_DOES_NOT_EXIST; 1588 goto out; 1589 } 1590 1591 /* prof becomes invalid after the call */ 1592 status = ice_flow_rem_prof_sync(hw, blk, prof); 1593 1594 out: 1595 mutex_unlock(&hw->fl_profs_locks[blk]); 1596 1597 return status; 1598 } 1599 1600 /** 1601 * ice_flow_add_entry - Add a flow entry 1602 * @hw: pointer to the HW struct 1603 * @blk: classification stage 1604 * @prof_id: ID of the profile to add a new flow entry to 1605 * @entry_id: unique ID to identify this flow entry 1606 * @vsi_handle: software VSI handle for the flow entry 1607 * @prio: priority of the flow entry 1608 * @data: pointer to a data buffer containing flow entry's match values/masks 1609 * @entry_h: pointer to buffer that receives the new flow entry's handle 1610 */ 1611 enum ice_status 1612 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id, 1613 u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio, 1614 void *data, u64 *entry_h) 1615 { 1616 struct ice_flow_entry *e = NULL; 1617 struct ice_flow_prof *prof; 1618 enum ice_status status; 1619 1620 /* No flow entry data is expected for RSS */ 1621 if (!entry_h || (!data && blk != ICE_BLK_RSS)) 1622 return ICE_ERR_BAD_PTR; 1623 1624 if (!ice_is_vsi_valid(hw, vsi_handle)) 1625 return ICE_ERR_PARAM; 1626 1627 mutex_lock(&hw->fl_profs_locks[blk]); 1628 1629 prof = ice_flow_find_prof_id(hw, blk, prof_id); 1630 if (!prof) { 1631 status = ICE_ERR_DOES_NOT_EXIST; 1632 } else { 1633 /* Allocate memory for the entry being added and associate 1634 * the VSI to the found flow profile 1635 */ 1636 e = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*e), GFP_KERNEL); 1637 if (!e) 1638 status = ICE_ERR_NO_MEMORY; 1639 else 1640 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); 1641 } 1642 1643 mutex_unlock(&hw->fl_profs_locks[blk]); 1644 if (status) 1645 goto out; 1646 1647 e->id = entry_id; 1648 e->vsi_handle = vsi_handle; 1649 e->prof = prof; 1650 e->priority = prio; 1651 1652 switch (blk) { 1653 case ICE_BLK_FD: 1654 case ICE_BLK_RSS: 1655 break; 1656 default: 1657 status = ICE_ERR_NOT_IMPL; 1658 goto out; 1659 } 1660 1661 mutex_lock(&prof->entries_lock); 1662 list_add(&e->l_entry, &prof->entries); 1663 mutex_unlock(&prof->entries_lock); 1664 1665 *entry_h = ICE_FLOW_ENTRY_HNDL(e); 1666 1667 out: 1668 if (status && e) { 1669 if (e->entry) 1670 devm_kfree(ice_hw_to_dev(hw), e->entry); 1671 devm_kfree(ice_hw_to_dev(hw), e); 1672 } 1673 1674 return status; 1675 } 1676 1677 /** 1678 * ice_flow_rem_entry - Remove a flow entry 1679 * @hw: pointer to the HW struct 1680 * @blk: classification stage 1681 * @entry_h: handle to the flow entry to be removed 1682 */ 1683 enum ice_status ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk, 1684 u64 entry_h) 1685 { 1686 struct ice_flow_entry *entry; 1687 struct ice_flow_prof *prof; 1688 enum ice_status status = 0; 1689 1690 if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL) 1691 return ICE_ERR_PARAM; 1692 1693 entry = ICE_FLOW_ENTRY_PTR(entry_h); 1694 1695 /* Retain the pointer to the flow profile as the entry will be freed */ 1696 prof = entry->prof; 1697 1698 if (prof) { 1699 mutex_lock(&prof->entries_lock); 1700 status = ice_flow_rem_entry_sync(hw, blk, entry); 1701 mutex_unlock(&prof->entries_lock); 1702 } 1703 1704 return status; 1705 } 1706 1707 /** 1708 * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer 1709 * @seg: packet segment the field being set belongs to 1710 * @fld: field to be set 1711 * @field_type: type of the field 1712 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from 1713 * entry's input buffer 1714 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's 1715 * input buffer 1716 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from 1717 * entry's input buffer 1718 * 1719 * This helper function stores information of a field being matched, including 1720 * the type of the field and the locations of the value to match, the mask, and 1721 * the upper-bound value in the start of the input buffer for a flow entry. 1722 * This function should only be used for fixed-size data structures. 1723 * 1724 * This function also opportunistically determines the protocol headers to be 1725 * present based on the fields being set. Some fields cannot be used alone to 1726 * determine the protocol headers present. Sometimes, fields for particular 1727 * protocol headers are not matched. In those cases, the protocol headers 1728 * must be explicitly set. 1729 */ 1730 static void 1731 ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld, 1732 enum ice_flow_fld_match_type field_type, u16 val_loc, 1733 u16 mask_loc, u16 last_loc) 1734 { 1735 u64 bit = BIT_ULL(fld); 1736 1737 seg->match |= bit; 1738 if (field_type == ICE_FLOW_FLD_TYPE_RANGE) 1739 seg->range |= bit; 1740 1741 seg->fields[fld].type = field_type; 1742 seg->fields[fld].src.val = val_loc; 1743 seg->fields[fld].src.mask = mask_loc; 1744 seg->fields[fld].src.last = last_loc; 1745 1746 ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr); 1747 } 1748 1749 /** 1750 * ice_flow_set_fld - specifies locations of field from entry's input buffer 1751 * @seg: packet segment the field being set belongs to 1752 * @fld: field to be set 1753 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from 1754 * entry's input buffer 1755 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's 1756 * input buffer 1757 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from 1758 * entry's input buffer 1759 * @range: indicate if field being matched is to be in a range 1760 * 1761 * This function specifies the locations, in the form of byte offsets from the 1762 * start of the input buffer for a flow entry, from where the value to match, 1763 * the mask value, and upper value can be extracted. These locations are then 1764 * stored in the flow profile. When adding a flow entry associated with the 1765 * flow profile, these locations will be used to quickly extract the values and 1766 * create the content of a match entry. This function should only be used for 1767 * fixed-size data structures. 1768 */ 1769 void 1770 ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld, 1771 u16 val_loc, u16 mask_loc, u16 last_loc, bool range) 1772 { 1773 enum ice_flow_fld_match_type t = range ? 1774 ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG; 1775 1776 ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc); 1777 } 1778 1779 /** 1780 * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf 1781 * @seg: packet segment the field being set belongs to 1782 * @off: offset of the raw field from the beginning of the segment in bytes 1783 * @len: length of the raw pattern to be matched 1784 * @val_loc: location of the value to match from entry's input buffer 1785 * @mask_loc: location of mask value from entry's input buffer 1786 * 1787 * This function specifies the offset of the raw field to be match from the 1788 * beginning of the specified packet segment, and the locations, in the form of 1789 * byte offsets from the start of the input buffer for a flow entry, from where 1790 * the value to match and the mask value to be extracted. These locations are 1791 * then stored in the flow profile. When adding flow entries to the associated 1792 * flow profile, these locations can be used to quickly extract the values to 1793 * create the content of a match entry. This function should only be used for 1794 * fixed-size data structures. 1795 */ 1796 void 1797 ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len, 1798 u16 val_loc, u16 mask_loc) 1799 { 1800 if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) { 1801 seg->raws[seg->raws_cnt].off = off; 1802 seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE; 1803 seg->raws[seg->raws_cnt].info.src.val = val_loc; 1804 seg->raws[seg->raws_cnt].info.src.mask = mask_loc; 1805 /* The "last" field is used to store the length of the field */ 1806 seg->raws[seg->raws_cnt].info.src.last = len; 1807 } 1808 1809 /* Overflows of "raws" will be handled as an error condition later in 1810 * the flow when this information is processed. 1811 */ 1812 seg->raws_cnt++; 1813 } 1814 1815 #define ICE_FLOW_RSS_SEG_HDR_L2_MASKS \ 1816 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN) 1817 1818 #define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \ 1819 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6) 1820 1821 #define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \ 1822 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) 1823 1824 #define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \ 1825 (ICE_FLOW_RSS_SEG_HDR_L2_MASKS | \ 1826 ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \ 1827 ICE_FLOW_RSS_SEG_HDR_L4_MASKS) 1828 1829 /** 1830 * ice_flow_set_rss_seg_info - setup packet segments for RSS 1831 * @segs: pointer to the flow field segment(s) 1832 * @hash_fields: fields to be hashed on for the segment(s) 1833 * @flow_hdr: protocol header fields within a packet segment 1834 * 1835 * Helper function to extract fields from hash bitmap and use flow 1836 * header value to set flow field segment for further use in flow 1837 * profile entry or removal. 1838 */ 1839 static enum ice_status 1840 ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields, 1841 u32 flow_hdr) 1842 { 1843 u64 val; 1844 u8 i; 1845 1846 for_each_set_bit(i, (unsigned long *)&hash_fields, 1847 ICE_FLOW_FIELD_IDX_MAX) 1848 ice_flow_set_fld(segs, (enum ice_flow_field)i, 1849 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, 1850 ICE_FLOW_FLD_OFF_INVAL, false); 1851 1852 ICE_FLOW_SET_HDRS(segs, flow_hdr); 1853 1854 if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS & 1855 ~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER) 1856 return ICE_ERR_PARAM; 1857 1858 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); 1859 if (val && !is_power_of_2(val)) 1860 return ICE_ERR_CFG; 1861 1862 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); 1863 if (val && !is_power_of_2(val)) 1864 return ICE_ERR_CFG; 1865 1866 return 0; 1867 } 1868 1869 /** 1870 * ice_rem_vsi_rss_list - remove VSI from RSS list 1871 * @hw: pointer to the hardware structure 1872 * @vsi_handle: software VSI handle 1873 * 1874 * Remove the VSI from all RSS configurations in the list. 1875 */ 1876 void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle) 1877 { 1878 struct ice_rss_cfg *r, *tmp; 1879 1880 if (list_empty(&hw->rss_list_head)) 1881 return; 1882 1883 mutex_lock(&hw->rss_locks); 1884 list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) 1885 if (test_and_clear_bit(vsi_handle, r->vsis)) 1886 if (bitmap_empty(r->vsis, ICE_MAX_VSI)) { 1887 list_del(&r->l_entry); 1888 devm_kfree(ice_hw_to_dev(hw), r); 1889 } 1890 mutex_unlock(&hw->rss_locks); 1891 } 1892 1893 /** 1894 * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI 1895 * @hw: pointer to the hardware structure 1896 * @vsi_handle: software VSI handle 1897 * 1898 * This function will iterate through all flow profiles and disassociate 1899 * the VSI from that profile. If the flow profile has no VSIs it will 1900 * be removed. 1901 */ 1902 enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle) 1903 { 1904 const enum ice_block blk = ICE_BLK_RSS; 1905 struct ice_flow_prof *p, *t; 1906 enum ice_status status = 0; 1907 1908 if (!ice_is_vsi_valid(hw, vsi_handle)) 1909 return ICE_ERR_PARAM; 1910 1911 if (list_empty(&hw->fl_profs[blk])) 1912 return 0; 1913 1914 mutex_lock(&hw->rss_locks); 1915 list_for_each_entry_safe(p, t, &hw->fl_profs[blk], l_entry) 1916 if (test_bit(vsi_handle, p->vsis)) { 1917 status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle); 1918 if (status) 1919 break; 1920 1921 if (bitmap_empty(p->vsis, ICE_MAX_VSI)) { 1922 status = ice_flow_rem_prof(hw, blk, p->id); 1923 if (status) 1924 break; 1925 } 1926 } 1927 mutex_unlock(&hw->rss_locks); 1928 1929 return status; 1930 } 1931 1932 /** 1933 * ice_rem_rss_list - remove RSS configuration from list 1934 * @hw: pointer to the hardware structure 1935 * @vsi_handle: software VSI handle 1936 * @prof: pointer to flow profile 1937 * 1938 * Assumption: lock has already been acquired for RSS list 1939 */ 1940 static void 1941 ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) 1942 { 1943 struct ice_rss_cfg *r, *tmp; 1944 1945 /* Search for RSS hash fields associated to the VSI that match the 1946 * hash configurations associated to the flow profile. If found 1947 * remove from the RSS entry list of the VSI context and delete entry. 1948 */ 1949 list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) 1950 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && 1951 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) { 1952 clear_bit(vsi_handle, r->vsis); 1953 if (bitmap_empty(r->vsis, ICE_MAX_VSI)) { 1954 list_del(&r->l_entry); 1955 devm_kfree(ice_hw_to_dev(hw), r); 1956 } 1957 return; 1958 } 1959 } 1960 1961 /** 1962 * ice_add_rss_list - add RSS configuration to list 1963 * @hw: pointer to the hardware structure 1964 * @vsi_handle: software VSI handle 1965 * @prof: pointer to flow profile 1966 * 1967 * Assumption: lock has already been acquired for RSS list 1968 */ 1969 static enum ice_status 1970 ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) 1971 { 1972 struct ice_rss_cfg *r, *rss_cfg; 1973 1974 list_for_each_entry(r, &hw->rss_list_head, l_entry) 1975 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && 1976 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) { 1977 set_bit(vsi_handle, r->vsis); 1978 return 0; 1979 } 1980 1981 rss_cfg = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rss_cfg), 1982 GFP_KERNEL); 1983 if (!rss_cfg) 1984 return ICE_ERR_NO_MEMORY; 1985 1986 rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match; 1987 rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs; 1988 set_bit(vsi_handle, rss_cfg->vsis); 1989 1990 list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head); 1991 1992 return 0; 1993 } 1994 1995 #define ICE_FLOW_PROF_HASH_S 0 1996 #define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S) 1997 #define ICE_FLOW_PROF_HDR_S 32 1998 #define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S) 1999 #define ICE_FLOW_PROF_ENCAP_S 63 2000 #define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S)) 2001 2002 #define ICE_RSS_OUTER_HEADERS 1 2003 #define ICE_RSS_INNER_HEADERS 2 2004 2005 /* Flow profile ID format: 2006 * [0:31] - Packet match fields 2007 * [32:62] - Protocol header 2008 * [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled 2009 */ 2010 #define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \ 2011 ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ 2012 (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \ 2013 ((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0))) 2014 2015 /** 2016 * ice_add_rss_cfg_sync - add an RSS configuration 2017 * @hw: pointer to the hardware structure 2018 * @vsi_handle: software VSI handle 2019 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure 2020 * @addl_hdrs: protocol header fields 2021 * @segs_cnt: packet segment count 2022 * 2023 * Assumption: lock has already been acquired for RSS list 2024 */ 2025 static enum ice_status 2026 ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, 2027 u32 addl_hdrs, u8 segs_cnt) 2028 { 2029 const enum ice_block blk = ICE_BLK_RSS; 2030 struct ice_flow_prof *prof = NULL; 2031 struct ice_flow_seg_info *segs; 2032 enum ice_status status; 2033 2034 if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX) 2035 return ICE_ERR_PARAM; 2036 2037 segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); 2038 if (!segs) 2039 return ICE_ERR_NO_MEMORY; 2040 2041 /* Construct the packet segment info from the hashed fields */ 2042 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds, 2043 addl_hdrs); 2044 if (status) 2045 goto exit; 2046 2047 /* Search for a flow profile that has matching headers, hash fields 2048 * and has the input VSI associated to it. If found, no further 2049 * operations required and exit. 2050 */ 2051 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, 2052 vsi_handle, 2053 ICE_FLOW_FIND_PROF_CHK_FLDS | 2054 ICE_FLOW_FIND_PROF_CHK_VSI); 2055 if (prof) 2056 goto exit; 2057 2058 /* Check if a flow profile exists with the same protocol headers and 2059 * associated with the input VSI. If so disassociate the VSI from 2060 * this profile. The VSI will be added to a new profile created with 2061 * the protocol header and new hash field configuration. 2062 */ 2063 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, 2064 vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI); 2065 if (prof) { 2066 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); 2067 if (!status) 2068 ice_rem_rss_list(hw, vsi_handle, prof); 2069 else 2070 goto exit; 2071 2072 /* Remove profile if it has no VSIs associated */ 2073 if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) { 2074 status = ice_flow_rem_prof(hw, blk, prof->id); 2075 if (status) 2076 goto exit; 2077 } 2078 } 2079 2080 /* Search for a profile that has same match fields only. If this 2081 * exists then associate the VSI to this profile. 2082 */ 2083 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, 2084 vsi_handle, 2085 ICE_FLOW_FIND_PROF_CHK_FLDS); 2086 if (prof) { 2087 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); 2088 if (!status) 2089 status = ice_add_rss_list(hw, vsi_handle, prof); 2090 goto exit; 2091 } 2092 2093 /* Create a new flow profile with generated profile and packet 2094 * segment information. 2095 */ 2096 status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, 2097 ICE_FLOW_GEN_PROFID(hashed_flds, 2098 segs[segs_cnt - 1].hdrs, 2099 segs_cnt), 2100 segs, segs_cnt, &prof); 2101 if (status) 2102 goto exit; 2103 2104 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); 2105 /* If association to a new flow profile failed then this profile can 2106 * be removed. 2107 */ 2108 if (status) { 2109 ice_flow_rem_prof(hw, blk, prof->id); 2110 goto exit; 2111 } 2112 2113 status = ice_add_rss_list(hw, vsi_handle, prof); 2114 2115 exit: 2116 kfree(segs); 2117 return status; 2118 } 2119 2120 /** 2121 * ice_add_rss_cfg - add an RSS configuration with specified hashed fields 2122 * @hw: pointer to the hardware structure 2123 * @vsi_handle: software VSI handle 2124 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure 2125 * @addl_hdrs: protocol header fields 2126 * 2127 * This function will generate a flow profile based on fields associated with 2128 * the input fields to hash on, the flow type and use the VSI number to add 2129 * a flow entry to the profile. 2130 */ 2131 enum ice_status 2132 ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, 2133 u32 addl_hdrs) 2134 { 2135 enum ice_status status; 2136 2137 if (hashed_flds == ICE_HASH_INVALID || 2138 !ice_is_vsi_valid(hw, vsi_handle)) 2139 return ICE_ERR_PARAM; 2140 2141 mutex_lock(&hw->rss_locks); 2142 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs, 2143 ICE_RSS_OUTER_HEADERS); 2144 if (!status) 2145 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, 2146 addl_hdrs, ICE_RSS_INNER_HEADERS); 2147 mutex_unlock(&hw->rss_locks); 2148 2149 return status; 2150 } 2151 2152 /** 2153 * ice_rem_rss_cfg_sync - remove an existing RSS configuration 2154 * @hw: pointer to the hardware structure 2155 * @vsi_handle: software VSI handle 2156 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove 2157 * @addl_hdrs: Protocol header fields within a packet segment 2158 * @segs_cnt: packet segment count 2159 * 2160 * Assumption: lock has already been acquired for RSS list 2161 */ 2162 static enum ice_status 2163 ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, 2164 u32 addl_hdrs, u8 segs_cnt) 2165 { 2166 const enum ice_block blk = ICE_BLK_RSS; 2167 struct ice_flow_seg_info *segs; 2168 struct ice_flow_prof *prof; 2169 enum ice_status status; 2170 2171 segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); 2172 if (!segs) 2173 return ICE_ERR_NO_MEMORY; 2174 2175 /* Construct the packet segment info from the hashed fields */ 2176 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds, 2177 addl_hdrs); 2178 if (status) 2179 goto out; 2180 2181 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, 2182 vsi_handle, 2183 ICE_FLOW_FIND_PROF_CHK_FLDS); 2184 if (!prof) { 2185 status = ICE_ERR_DOES_NOT_EXIST; 2186 goto out; 2187 } 2188 2189 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); 2190 if (status) 2191 goto out; 2192 2193 /* Remove RSS configuration from VSI context before deleting 2194 * the flow profile. 2195 */ 2196 ice_rem_rss_list(hw, vsi_handle, prof); 2197 2198 if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) 2199 status = ice_flow_rem_prof(hw, blk, prof->id); 2200 2201 out: 2202 kfree(segs); 2203 return status; 2204 } 2205 2206 /** 2207 * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields 2208 * @hw: pointer to the hardware structure 2209 * @vsi_handle: software VSI handle 2210 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove 2211 * @addl_hdrs: Protocol header fields within a packet segment 2212 * 2213 * This function will lookup the flow profile based on the input 2214 * hash field bitmap, iterate through the profile entry list of 2215 * that profile and find entry associated with input VSI to be 2216 * removed. Calls are made to underlying flow s which will APIs 2217 * turn build or update buffers for RSS XLT1 section. 2218 */ 2219 enum ice_status __maybe_unused 2220 ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, 2221 u32 addl_hdrs) 2222 { 2223 enum ice_status status; 2224 2225 if (hashed_flds == ICE_HASH_INVALID || 2226 !ice_is_vsi_valid(hw, vsi_handle)) 2227 return ICE_ERR_PARAM; 2228 2229 mutex_lock(&hw->rss_locks); 2230 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs, 2231 ICE_RSS_OUTER_HEADERS); 2232 if (!status) 2233 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, 2234 addl_hdrs, ICE_RSS_INNER_HEADERS); 2235 mutex_unlock(&hw->rss_locks); 2236 2237 return status; 2238 } 2239 2240 /* Mapping of AVF hash bit fields to an L3-L4 hash combination. 2241 * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash, 2242 * convert its values to their appropriate flow L3, L4 values. 2243 */ 2244 #define ICE_FLOW_AVF_RSS_IPV4_MASKS \ 2245 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \ 2246 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4)) 2247 #define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \ 2248 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \ 2249 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP)) 2250 #define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \ 2251 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \ 2252 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \ 2253 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP)) 2254 #define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \ 2255 (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \ 2256 ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) 2257 2258 #define ICE_FLOW_AVF_RSS_IPV6_MASKS \ 2259 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \ 2260 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6)) 2261 #define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \ 2262 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ 2263 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \ 2264 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP)) 2265 #define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \ 2266 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \ 2267 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP)) 2268 #define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \ 2269 (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \ 2270 ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) 2271 2272 /** 2273 * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver 2274 * @hw: pointer to the hardware structure 2275 * @vsi_handle: software VSI handle 2276 * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure 2277 * 2278 * This function will take the hash bitmap provided by the AVF driver via a 2279 * message, convert it to ICE-compatible values, and configure RSS flow 2280 * profiles. 2281 */ 2282 enum ice_status 2283 ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) 2284 { 2285 enum ice_status status = 0; 2286 u64 hash_flds; 2287 2288 if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID || 2289 !ice_is_vsi_valid(hw, vsi_handle)) 2290 return ICE_ERR_PARAM; 2291 2292 /* Make sure no unsupported bits are specified */ 2293 if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS | 2294 ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)) 2295 return ICE_ERR_CFG; 2296 2297 hash_flds = avf_hash; 2298 2299 /* Always create an L3 RSS configuration for any L4 RSS configuration */ 2300 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) 2301 hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS; 2302 2303 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) 2304 hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS; 2305 2306 /* Create the corresponding RSS configuration for each valid hash bit */ 2307 while (hash_flds) { 2308 u64 rss_hash = ICE_HASH_INVALID; 2309 2310 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) { 2311 if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) { 2312 rss_hash = ICE_FLOW_HASH_IPV4; 2313 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS; 2314 } else if (hash_flds & 2315 ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) { 2316 rss_hash = ICE_FLOW_HASH_IPV4 | 2317 ICE_FLOW_HASH_TCP_PORT; 2318 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS; 2319 } else if (hash_flds & 2320 ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) { 2321 rss_hash = ICE_FLOW_HASH_IPV4 | 2322 ICE_FLOW_HASH_UDP_PORT; 2323 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS; 2324 } else if (hash_flds & 2325 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) { 2326 rss_hash = ICE_FLOW_HASH_IPV4 | 2327 ICE_FLOW_HASH_SCTP_PORT; 2328 hash_flds &= 2329 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP); 2330 } 2331 } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) { 2332 if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) { 2333 rss_hash = ICE_FLOW_HASH_IPV6; 2334 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS; 2335 } else if (hash_flds & 2336 ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) { 2337 rss_hash = ICE_FLOW_HASH_IPV6 | 2338 ICE_FLOW_HASH_TCP_PORT; 2339 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS; 2340 } else if (hash_flds & 2341 ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) { 2342 rss_hash = ICE_FLOW_HASH_IPV6 | 2343 ICE_FLOW_HASH_UDP_PORT; 2344 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS; 2345 } else if (hash_flds & 2346 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) { 2347 rss_hash = ICE_FLOW_HASH_IPV6 | 2348 ICE_FLOW_HASH_SCTP_PORT; 2349 hash_flds &= 2350 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP); 2351 } 2352 } 2353 2354 if (rss_hash == ICE_HASH_INVALID) 2355 return ICE_ERR_OUT_OF_RANGE; 2356 2357 status = ice_add_rss_cfg(hw, vsi_handle, rss_hash, 2358 ICE_FLOW_SEG_HDR_NONE); 2359 if (status) 2360 break; 2361 } 2362 2363 return status; 2364 } 2365 2366 /** 2367 * ice_replay_rss_cfg - replay RSS configurations associated with VSI 2368 * @hw: pointer to the hardware structure 2369 * @vsi_handle: software VSI handle 2370 */ 2371 enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) 2372 { 2373 enum ice_status status = 0; 2374 struct ice_rss_cfg *r; 2375 2376 if (!ice_is_vsi_valid(hw, vsi_handle)) 2377 return ICE_ERR_PARAM; 2378 2379 mutex_lock(&hw->rss_locks); 2380 list_for_each_entry(r, &hw->rss_list_head, l_entry) { 2381 if (test_bit(vsi_handle, r->vsis)) { 2382 status = ice_add_rss_cfg_sync(hw, vsi_handle, 2383 r->hashed_flds, 2384 r->packet_hdr, 2385 ICE_RSS_OUTER_HEADERS); 2386 if (status) 2387 break; 2388 status = ice_add_rss_cfg_sync(hw, vsi_handle, 2389 r->hashed_flds, 2390 r->packet_hdr, 2391 ICE_RSS_INNER_HEADERS); 2392 if (status) 2393 break; 2394 } 2395 } 2396 mutex_unlock(&hw->rss_locks); 2397 2398 return status; 2399 } 2400 2401 /** 2402 * ice_get_rss_cfg - returns hashed fields for the given header types 2403 * @hw: pointer to the hardware structure 2404 * @vsi_handle: software VSI handle 2405 * @hdrs: protocol header type 2406 * 2407 * This function will return the match fields of the first instance of flow 2408 * profile having the given header types and containing input VSI 2409 */ 2410 u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs) 2411 { 2412 u64 rss_hash = ICE_HASH_INVALID; 2413 struct ice_rss_cfg *r; 2414 2415 /* verify if the protocol header is non zero and VSI is valid */ 2416 if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle)) 2417 return ICE_HASH_INVALID; 2418 2419 mutex_lock(&hw->rss_locks); 2420 list_for_each_entry(r, &hw->rss_list_head, l_entry) 2421 if (test_bit(vsi_handle, r->vsis) && 2422 r->packet_hdr == hdrs) { 2423 rss_hash = r->hashed_flds; 2424 break; 2425 } 2426 mutex_unlock(&hw->rss_locks); 2427 2428 return rss_hash; 2429 } 2430