1 /* 2 * Copyright (c) 2017-2018 Cavium, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 * 29 */ 30 31 32 #ifndef __ETH_COMMON__ 33 #define __ETH_COMMON__ 34 /********************/ 35 /* ETH FW CONSTANTS */ 36 /********************/ 37 38 /* FP HSI version. FP HSI is compatible if (fwVer.major == drvVer.major && fwVer.minor >= drvVer.minor) */ 39 #define ETH_HSI_VER_MAJOR 3 /* ETH FP HSI Major version */ 40 #define ETH_HSI_VER_MINOR 10 /* ETH FP HSI Minor version */ 41 42 #define ETH_HSI_VER_NO_PKT_LEN_TUNN 5 /* Alias for 8.7.x.x/8.8.x.x ETH FP HSI MINOR version. In this version driver is not required to set pkt_len field in eth_tx_1st_bd struct, and tunneling offload is not supported. */ 43 44 #define ETH_CACHE_LINE_SIZE 64 45 #define ETH_RX_CQE_GAP 32 46 #define ETH_MAX_RAMROD_PER_CON 8 47 #define ETH_TX_BD_PAGE_SIZE_BYTES 4096 48 #define ETH_RX_BD_PAGE_SIZE_BYTES 4096 49 #define ETH_RX_CQE_PAGE_SIZE_BYTES 4096 50 #define ETH_RX_NUM_NEXT_PAGE_BDS 2 51 52 /* Limitation for Tunneled LSO Packets on the offset (in bytes) of the inner IP header (relevant to LSO for tunneled packet): */ 53 #define ETH_MAX_TUNN_LSO_INNER_IPV4_OFFSET 253 /* Offset is limited to 253 bytes (inclusive). */ 54 #define ETH_MAX_TUNN_LSO_INNER_IPV6_OFFSET 251 /* Offset is limited to 251 bytes (inclusive). */ 55 56 #define ETH_TX_MIN_BDS_PER_NON_LSO_PKT 1 57 #define ETH_TX_MAX_BDS_PER_NON_LSO_PACKET 18 58 #define ETH_TX_MAX_BDS_PER_LSO_PACKET 255 59 #define ETH_TX_MAX_LSO_HDR_NBD 4 60 #define ETH_TX_MIN_BDS_PER_LSO_PKT 3 61 #define ETH_TX_MIN_BDS_PER_TUNN_IPV6_WITH_EXT_PKT 3 62 #define ETH_TX_MIN_BDS_PER_IPV6_WITH_EXT_PKT 2 63 #define ETH_TX_MIN_BDS_PER_PKT_W_LOOPBACK_MODE 2 64 #define ETH_TX_MAX_NON_LSO_PKT_LEN (9700 - (4 + 4 + 12 + 8)) /* (QM_REG_TASKBYTECRDCOST_0, QM_VOQ_BYTE_CRD_TASK_COST) - (VLAN-TAG + CRC + IPG + PREAMBLE) */ 65 #define ETH_TX_MAX_LSO_HDR_BYTES 510 66 #define ETH_TX_LSO_WINDOW_BDS_NUM (18 - 1) /* Number of BDs to consider for LSO sliding window restriction is (ETH_TX_LSO_WINDOW_BDS_NUM - hdr_nbd) */ 67 #define ETH_TX_LSO_WINDOW_MIN_LEN 9700 /* Minimum data length (in bytes) in LSO sliding window */ 68 #define ETH_TX_MAX_LSO_PAYLOAD_LEN 0xFE000 /* Maximum LSO packet TCP payload length (in bytes) */ 69 #define ETH_TX_NUM_SAME_AS_LAST_ENTRIES 320 /* Number of same-as-last resources in tx switching */ 70 #define ETH_TX_INACTIVE_SAME_AS_LAST 0xFFFF /* Value for a connection for which same as last feature is disabled */ 71 72 #define ETH_NUM_STATISTIC_COUNTERS MAX_NUM_VPORTS /* Maximum number of statistics counters */ 73 #define ETH_NUM_STATISTIC_COUNTERS_DOUBLE_VF_ZONE (ETH_NUM_STATISTIC_COUNTERS - MAX_NUM_VFS/2) /* Maximum number of statistics counters when doubled VF zone used */ 74 #define ETH_NUM_STATISTIC_COUNTERS_QUAD_VF_ZONE (ETH_NUM_STATISTIC_COUNTERS - 3*MAX_NUM_VFS/4) /* Maximum number of statistics counters when quad VF zone used */ 75 76 #define ETH_RX_MAX_BUFF_PER_PKT 5 /* Maximum number of buffers, used for RX packet placement */ 77 #define ETH_RX_BD_THRESHOLD 12 /* Minimum number of free BDs in RX ring, that guarantee receiving of at least one RX packet. */ 78 79 /* num of MAC/VLAN filters */ 80 #define ETH_NUM_MAC_FILTERS 512 81 #define ETH_NUM_VLAN_FILTERS 512 82 83 /* approx. multicast constants */ 84 #define ETH_MULTICAST_BIN_FROM_MAC_SEED 0 /* CRC seed for multicast bin calculation */ 85 #define ETH_MULTICAST_MAC_BINS 256 86 #define ETH_MULTICAST_MAC_BINS_IN_REGS (ETH_MULTICAST_MAC_BINS / 32) 87 88 /* ethernet vport update constants */ 89 #define ETH_FILTER_RULES_COUNT 10 90 #define ETH_RSS_IND_TABLE_ENTRIES_NUM 128 /* number of RSS indirection table entries, per Vport) */ 91 #define ETH_RSS_KEY_SIZE_REGS 10 /* Length of RSS key (in regs) */ 92 #define ETH_RSS_ENGINE_NUM_K2 207 /* number of available RSS engines in K2 */ 93 #define ETH_RSS_ENGINE_NUM_BB 127 /* number of available RSS engines in BB */ 94 95 /* TPA constants */ 96 #define ETH_TPA_MAX_AGGS_NUM 64 /* Maximum number of open TPA aggregations */ 97 #define ETH_TPA_CQE_START_LEN_LIST_SIZE ETH_RX_MAX_BUFF_PER_PKT /* Maximum number of additional buffers, reported by TPA-start CQE */ 98 #define ETH_TPA_CQE_CONT_LEN_LIST_SIZE 6 /* Maximum number of buffers, reported by TPA-continue CQE */ 99 #define ETH_TPA_CQE_END_LEN_LIST_SIZE 4 /* Maximum number of buffers, reported by TPA-end CQE */ 100 101 /* Control frame check constants */ 102 #define ETH_CTL_FRAME_ETH_TYPE_NUM 4 /* Number of etherType values configured by the driver for control frame check */ 103 104 /* GFS constants */ 105 #define ETH_GFT_TRASHCAN_VPORT 0x1FF /* GFT drop flow vport number */ 106 107 108 109 /* 110 * Destination port mode 111 */ 112 enum dest_port_mode 113 { 114 DEST_PORT_PHY /* Send to physical port. */, 115 DEST_PORT_LOOPBACK /* Send to loopback port. */, 116 DEST_PORT_PHY_LOOPBACK /* Send to physical and loopback port. */, 117 DEST_PORT_DROP /* Drop the packet in PBF. */, 118 MAX_DEST_PORT_MODE 119 }; 120 121 122 /* 123 * Ethernet address type 124 */ 125 enum eth_addr_type 126 { 127 BROADCAST_ADDRESS, 128 MULTICAST_ADDRESS, 129 UNICAST_ADDRESS, 130 UNKNOWN_ADDRESS, 131 MAX_ETH_ADDR_TYPE 132 }; 133 134 135 struct eth_tx_1st_bd_flags 136 { 137 u8 bitfields; 138 #define ETH_TX_1ST_BD_FLAGS_START_BD_MASK 0x1 /* Set to 1 in the first BD. (for debug) */ 139 #define ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT 0 140 #define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_MASK 0x1 /* Do not allow additional VLAN manipulations on this packet. */ 141 #define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_SHIFT 1 142 #define ETH_TX_1ST_BD_FLAGS_IP_CSUM_MASK 0x1 /* Recalculate IP checksum. For tunneled packet - relevant to inner header. */ 143 #define ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT 2 144 #define ETH_TX_1ST_BD_FLAGS_L4_CSUM_MASK 0x1 /* Recalculate TCP/UDP checksum. For tunneled packet - relevant to inner header. */ 145 #define ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT 3 146 #define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_MASK 0x1 /* If set, insert VLAN tag from vlan field to the packet. For tunneled packet - relevant to outer header. */ 147 #define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT 4 148 #define ETH_TX_1ST_BD_FLAGS_LSO_MASK 0x1 /* If set, this is an LSO packet. Note: For Tunneled LSO packets, the offset of the inner IPV4 (and IPV6) header is limited to 253 (and 251 respectively) bytes, inclusive. */ 149 #define ETH_TX_1ST_BD_FLAGS_LSO_SHIFT 5 150 #define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_MASK 0x1 /* Recalculate Tunnel IP Checksum (if Tunnel IP Header is IPv4) */ 151 #define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT 6 152 #define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK 0x1 /* Recalculate Tunnel UDP/GRE Checksum (Depending on Tunnel Type) */ 153 #define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT 7 154 }; 155 156 /* 157 * The parsing information data for the first tx bd of a given packet. 158 */ 159 struct eth_tx_data_1st_bd 160 { 161 __le16 vlan /* VLAN tag to insert to packet (if enabled by vlan_insertion flag). */; 162 u8 nbds /* Number of BDs in packet. Should be at least 1 in non-LSO packet and at least 3 in LSO (or Tunnel with IPv6+ext) packet. */; 163 struct eth_tx_1st_bd_flags bd_flags; 164 __le16 bitfields; 165 #define ETH_TX_DATA_1ST_BD_TUNN_FLAG_MASK 0x1 /* Indicates a tunneled packet. Must be set for encapsulated packet. */ 166 #define ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT 0 167 #define ETH_TX_DATA_1ST_BD_RESERVED0_MASK 0x1 168 #define ETH_TX_DATA_1ST_BD_RESERVED0_SHIFT 1 169 #define ETH_TX_DATA_1ST_BD_PKT_LEN_MASK 0x3FFF /* Total packet length - must be filled for non-LSO packets. */ 170 #define ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT 2 171 }; 172 173 /* 174 * The parsing information data for the second tx bd of a given packet. 175 */ 176 struct eth_tx_data_2nd_bd 177 { 178 __le16 tunn_ip_size /* For tunnel with IPv6+ext - Tunnel header IP datagram length (in BYTEs) */; 179 __le16 bitfields1; 180 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK 0xF /* For Tunnel header with IPv6 ext. - Inner L2 Header Size (in 2-byte WORDs) */ 181 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_SHIFT 0 182 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_MASK 0x3 /* For Tunnel header with IPv6 ext. - Inner L2 Header MAC DA Type (use enum eth_addr_type) */ 183 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_SHIFT 4 184 #define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_MASK 0x3 /* Destination port mode. (use enum dest_port_mode) */ 185 #define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_SHIFT 6 186 #define ETH_TX_DATA_2ND_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */ 187 #define ETH_TX_DATA_2ND_BD_START_BD_SHIFT 8 188 #define ETH_TX_DATA_2ND_BD_TUNN_TYPE_MASK 0x3 /* For Tunnel header with IPv6 ext. - Tunnel Type (use enum eth_tx_tunn_type) */ 189 #define ETH_TX_DATA_2ND_BD_TUNN_TYPE_SHIFT 9 190 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_MASK 0x1 /* For LSO / Tunnel header with IPv6+ext - Set if inner header is IPv6 */ 191 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_SHIFT 11 192 #define ETH_TX_DATA_2ND_BD_IPV6_EXT_MASK 0x1 /* In tunneling mode - Set to 1 when the Inner header is IPv6 with extension. Otherwise set to 1 if the header is IPv6 with extension. */ 193 #define ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT 12 194 #define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_MASK 0x1 /* Set to 1 if Tunnel (outer = encapsulating) header has IPv6 ext. (Note: 3rd BD is required, hence EDPM does not support Tunnel [outer] header with Ipv6Ext) */ 195 #define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_SHIFT 13 196 #define ETH_TX_DATA_2ND_BD_L4_UDP_MASK 0x1 /* Set if (inner) L4 protocol is UDP. (Required when IPv6+ext (or tunnel with inner or outer Ipv6+ext) and l4_csum is set) */ 197 #define ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT 14 198 #define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_MASK 0x1 /* The pseudo header checksum type in the L4 checksum field. Required when IPv6+ext and l4_csum is set. (use enum eth_l4_pseudo_checksum_mode) */ 199 #define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT 15 200 __le16 bitfields2; 201 #define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK 0x1FFF /* For inner/outer header IPv6+ext - (inner) L4 header offset (in 2-byte WORDs). For regular packet - offset from the beginning of the packet. For tunneled packet - offset from the beginning of the inner header */ 202 #define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT 0 203 #define ETH_TX_DATA_2ND_BD_RESERVED0_MASK 0x7 204 #define ETH_TX_DATA_2ND_BD_RESERVED0_SHIFT 13 205 }; 206 207 /* 208 * Firmware data for L2-EDPM packet. 209 */ 210 struct eth_edpm_fw_data 211 { 212 struct eth_tx_data_1st_bd data_1st_bd /* Parsing information data from the 1st BD. */; 213 struct eth_tx_data_2nd_bd data_2nd_bd /* Parsing information data from the 2nd BD. */; 214 __le32 reserved; 215 }; 216 217 218 /* 219 * tunneling parsing flags 220 */ 221 struct eth_tunnel_parsing_flags 222 { 223 u8 flags; 224 #define ETH_TUNNEL_PARSING_FLAGS_TYPE_MASK 0x3 /* 0 - no tunneling, 1 - GENEVE, 2 - GRE, 3 - VXLAN (use enum eth_rx_tunn_type) */ 225 #define ETH_TUNNEL_PARSING_FLAGS_TYPE_SHIFT 0 226 #define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_MASK 0x1 /* If it s not an encapsulated packet then put 0x0. If it s an encapsulated packet but the tenant-id doesn t exist then put 0x0. Else put 0x1 */ 227 #define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_SHIFT 2 228 #define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_MASK 0x3 /* Type of the next header above the tunneling: 0 - unknown, 1 - L2, 2 - Ipv4, 3 - IPv6 (use enum tunnel_next_protocol) */ 229 #define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_SHIFT 3 230 #define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_MASK 0x1 /* The result of comparing the DA-ip of the tunnel header. */ 231 #define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_SHIFT 5 232 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK 0x1 233 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT 6 234 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_MASK 0x1 235 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_SHIFT 7 236 }; 237 238 /* 239 * PMD flow control bits 240 */ 241 struct eth_pmd_flow_flags 242 { 243 u8 flags; 244 #define ETH_PMD_FLOW_FLAGS_VALID_MASK 0x1 /* CQE valid bit */ 245 #define ETH_PMD_FLOW_FLAGS_VALID_SHIFT 0 246 #define ETH_PMD_FLOW_FLAGS_TOGGLE_MASK 0x1 /* CQE ring toggle bit */ 247 #define ETH_PMD_FLOW_FLAGS_TOGGLE_SHIFT 1 248 #define ETH_PMD_FLOW_FLAGS_RESERVED_MASK 0x3F 249 #define ETH_PMD_FLOW_FLAGS_RESERVED_SHIFT 2 250 }; 251 252 /* 253 * Regular ETH Rx FP CQE. 254 */ 255 struct eth_fast_path_rx_reg_cqe 256 { 257 u8 type /* CQE type (use enum eth_rx_cqe_type) */; 258 u8 bitfields; 259 #define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_MASK 0x7 /* Type of calculated RSS hash (use enum rss_hash_type) */ 260 #define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_SHIFT 0 261 #define ETH_FAST_PATH_RX_REG_CQE_TC_MASK 0xF /* Traffic Class */ 262 #define ETH_FAST_PATH_RX_REG_CQE_TC_SHIFT 3 263 #define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_MASK 0x1 264 #define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_SHIFT 7 265 __le16 pkt_len /* Total packet length (from the parser) */; 266 struct parsing_and_err_flags pars_flags /* Parsing and error flags from the parser */; 267 __le16 vlan_tag /* 802.1q VLAN tag */; 268 __le32 rss_hash /* RSS hash result */; 269 __le16 len_on_first_bd /* Number of bytes placed on first BD */; 270 u8 placement_offset /* Offset of placement from BD start */; 271 struct eth_tunnel_parsing_flags tunnel_pars_flags /* Tunnel Parsing Flags */; 272 u8 bd_num /* Number of BDs, used for packet */; 273 u8 reserved; 274 __le16 flow_id /* aRFS flow ID. */; 275 u8 reserved1[11]; 276 struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */; 277 }; 278 279 280 /* 281 * TPA-continue ETH Rx FP CQE. 282 */ 283 struct eth_fast_path_rx_tpa_cont_cqe 284 { 285 u8 type /* CQE type (use enum eth_rx_cqe_type) */; 286 u8 tpa_agg_index /* TPA aggregation index */; 287 __le16 len_list[ETH_TPA_CQE_CONT_LEN_LIST_SIZE] /* List of the segment sizes */; 288 u8 reserved; 289 u8 reserved1 /* FW reserved. */; 290 __le16 reserved2[ETH_TPA_CQE_CONT_LEN_LIST_SIZE] /* FW reserved. */; 291 u8 reserved3[3]; 292 struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */; 293 }; 294 295 296 /* 297 * TPA-end ETH Rx FP CQE . 298 */ 299 struct eth_fast_path_rx_tpa_end_cqe 300 { 301 u8 type /* CQE type (use enum eth_rx_cqe_type) */; 302 u8 tpa_agg_index /* TPA aggregation index */; 303 __le16 total_packet_len /* Total aggregated packet length */; 304 u8 num_of_bds /* Total number of BDs comprising the packet */; 305 u8 end_reason /* Aggregation end reason. Use enum eth_tpa_end_reason */; 306 __le16 num_of_coalesced_segs /* Number of coalesced TCP segments */; 307 __le32 ts_delta /* TCP timestamp delta */; 308 __le16 len_list[ETH_TPA_CQE_END_LEN_LIST_SIZE] /* List of the segment sizes */; 309 __le16 reserved3[ETH_TPA_CQE_END_LEN_LIST_SIZE] /* FW reserved. */; 310 __le16 reserved1; 311 u8 reserved2 /* FW reserved. */; 312 struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */; 313 }; 314 315 316 /* 317 * TPA-start ETH Rx FP CQE. 318 */ 319 struct eth_fast_path_rx_tpa_start_cqe 320 { 321 u8 type /* CQE type (use enum eth_rx_cqe_type) */; 322 u8 bitfields; 323 #define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_MASK 0x7 /* Type of calculated RSS hash (use enum rss_hash_type) */ 324 #define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_SHIFT 0 325 #define ETH_FAST_PATH_RX_TPA_START_CQE_TC_MASK 0xF /* Traffic Class */ 326 #define ETH_FAST_PATH_RX_TPA_START_CQE_TC_SHIFT 3 327 #define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_MASK 0x1 328 #define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_SHIFT 7 329 __le16 seg_len /* Segment length (packetLen from the parser) */; 330 struct parsing_and_err_flags pars_flags /* Parsing and error flags from the parser */; 331 __le16 vlan_tag /* 802.1q VLAN tag */; 332 __le32 rss_hash /* RSS hash result */; 333 __le16 len_on_first_bd /* Number of bytes placed on first BD */; 334 u8 placement_offset /* Offset of placement from BD start */; 335 struct eth_tunnel_parsing_flags tunnel_pars_flags /* Tunnel Parsing Flags */; 336 u8 tpa_agg_index /* TPA aggregation index */; 337 u8 header_len /* Packet L2+L3+L4 header length */; 338 __le16 ext_bd_len_list[ETH_TPA_CQE_START_LEN_LIST_SIZE] /* Additional BDs length list. */; 339 __le16 flow_id /* aRFS flow ID. */; 340 u8 reserved; 341 struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */; 342 }; 343 344 345 /* 346 * The L4 pseudo checksum mode for Ethernet 347 */ 348 enum eth_l4_pseudo_checksum_mode 349 { 350 ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH /* Pseudo Header checksum on packet is calculated with the correct packet length field. */, 351 ETH_L4_PSEUDO_CSUM_ZERO_LENGTH /* Pseudo Header checksum on packet is calculated with zero length field. */, 352 MAX_ETH_L4_PSEUDO_CHECKSUM_MODE 353 }; 354 355 356 357 struct eth_rx_bd 358 { 359 struct regpair addr /* single continues buffer */; 360 }; 361 362 363 /* 364 * regular ETH Rx SP CQE 365 */ 366 struct eth_slow_path_rx_cqe 367 { 368 u8 type /* CQE type (use enum eth_rx_cqe_type) */; 369 u8 ramrod_cmd_id; 370 u8 error_flag; 371 u8 reserved[25]; 372 __le16 echo; 373 u8 reserved1; 374 struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */; 375 }; 376 377 /* 378 * union for all ETH Rx CQE types 379 */ 380 union eth_rx_cqe 381 { 382 struct eth_fast_path_rx_reg_cqe fast_path_regular /* Regular FP CQE */; 383 struct eth_fast_path_rx_tpa_start_cqe fast_path_tpa_start /* TPA-start CQE */; 384 struct eth_fast_path_rx_tpa_cont_cqe fast_path_tpa_cont /* TPA-continue CQE */; 385 struct eth_fast_path_rx_tpa_end_cqe fast_path_tpa_end /* TPA-end CQE */; 386 struct eth_slow_path_rx_cqe slow_path /* SP CQE */; 387 }; 388 389 390 /* 391 * ETH Rx CQE type 392 */ 393 enum eth_rx_cqe_type 394 { 395 ETH_RX_CQE_TYPE_UNUSED, 396 ETH_RX_CQE_TYPE_REGULAR /* Regular FP ETH Rx CQE */, 397 ETH_RX_CQE_TYPE_SLOW_PATH /* Slow path ETH Rx CQE */, 398 ETH_RX_CQE_TYPE_TPA_START /* TPA start ETH Rx CQE */, 399 ETH_RX_CQE_TYPE_TPA_CONT /* TPA Continue ETH Rx CQE */, 400 ETH_RX_CQE_TYPE_TPA_END /* TPA end ETH Rx CQE */, 401 MAX_ETH_RX_CQE_TYPE 402 }; 403 404 405 /* 406 * Wrapper for PD RX CQE - used in order to cover full cache line when writing CQE 407 */ 408 struct eth_rx_pmd_cqe 409 { 410 union eth_rx_cqe cqe /* CQE data itself */; 411 u8 reserved[ETH_RX_CQE_GAP]; 412 }; 413 414 415 /* 416 * Eth RX Tunnel Type 417 */ 418 enum eth_rx_tunn_type 419 { 420 ETH_RX_NO_TUNN /* No Tunnel. */, 421 ETH_RX_TUNN_GENEVE /* GENEVE Tunnel. */, 422 ETH_RX_TUNN_GRE /* GRE Tunnel. */, 423 ETH_RX_TUNN_VXLAN /* VXLAN Tunnel. */, 424 MAX_ETH_RX_TUNN_TYPE 425 }; 426 427 428 429 /* 430 * Aggregation end reason. 431 */ 432 enum eth_tpa_end_reason 433 { 434 ETH_AGG_END_UNUSED, 435 ETH_AGG_END_SP_UPDATE /* SP configuration update */, 436 ETH_AGG_END_MAX_LEN /* Maximum aggregation length or maximum buffer number used. */, 437 ETH_AGG_END_LAST_SEG /* TCP PSH flag or TCP payload length below continue threshold. */, 438 ETH_AGG_END_TIMEOUT /* Timeout expiration. */, 439 ETH_AGG_END_NOT_CONSISTENT /* Packet header not consistency: different IPv4 TOS, TTL or flags, IPv6 TC, Hop limit or Flow label, TCP header length or TS options. In GRO different TS value, SMAC, DMAC, ackNum, windowSize or VLAN */, 440 ETH_AGG_END_OUT_OF_ORDER /* Out of order or retransmission packet: sequence, ack or timestamp not consistent with previous segment. */, 441 ETH_AGG_END_NON_TPA_SEG /* Next segment cant be aggregated due to LLC/SNAP, IP error, IP fragment, IPv4 options, IPv6 extension, IP ECN = CE, TCP errors, TCP options, zero TCP payload length , TCP flags or not supported tunnel header options. */, 442 MAX_ETH_TPA_END_REASON 443 }; 444 445 446 447 /* 448 * The first tx bd of a given packet 449 */ 450 struct eth_tx_1st_bd 451 { 452 struct regpair addr /* Single continuous buffer */; 453 __le16 nbytes /* Number of bytes in this BD. */; 454 struct eth_tx_data_1st_bd data /* Parsing information data. */; 455 }; 456 457 458 459 /* 460 * The second tx bd of a given packet 461 */ 462 struct eth_tx_2nd_bd 463 { 464 struct regpair addr /* Single continuous buffer */; 465 __le16 nbytes /* Number of bytes in this BD. */; 466 struct eth_tx_data_2nd_bd data /* Parsing information data. */; 467 }; 468 469 470 /* 471 * The parsing information data for the third tx bd of a given packet. 472 */ 473 struct eth_tx_data_3rd_bd 474 { 475 __le16 lso_mss /* For LSO packet - the MSS in bytes. */; 476 __le16 bitfields; 477 #define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK 0xF /* For LSO with inner/outer IPv6+ext - TCP header length (in 4-byte WORDs) */ 478 #define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT 0 479 #define ETH_TX_DATA_3RD_BD_HDR_NBD_MASK 0xF /* LSO - number of BDs which contain headers. value should be in range (1..ETH_TX_MAX_LSO_HDR_NBD). */ 480 #define ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT 4 481 #define ETH_TX_DATA_3RD_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */ 482 #define ETH_TX_DATA_3RD_BD_START_BD_SHIFT 8 483 #define ETH_TX_DATA_3RD_BD_RESERVED0_MASK 0x7F 484 #define ETH_TX_DATA_3RD_BD_RESERVED0_SHIFT 9 485 u8 tunn_l4_hdr_start_offset_w /* For tunnel with IPv6+ext - Pointer to the tunnel L4 Header (in 2-byte WORDs) */; 486 u8 tunn_hdr_size_w /* For tunnel with IPv6+ext - Total size of the Tunnel Header (in 2-byte WORDs) */; 487 }; 488 489 /* 490 * The third tx bd of a given packet 491 */ 492 struct eth_tx_3rd_bd 493 { 494 struct regpair addr /* Single continuous buffer */; 495 __le16 nbytes /* Number of bytes in this BD. */; 496 struct eth_tx_data_3rd_bd data /* Parsing information data. */; 497 }; 498 499 500 /* 501 * Complementary information for the regular tx bd of a given packet. 502 */ 503 struct eth_tx_data_bd 504 { 505 __le16 reserved0; 506 __le16 bitfields; 507 #define ETH_TX_DATA_BD_RESERVED1_MASK 0xFF 508 #define ETH_TX_DATA_BD_RESERVED1_SHIFT 0 509 #define ETH_TX_DATA_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */ 510 #define ETH_TX_DATA_BD_START_BD_SHIFT 8 511 #define ETH_TX_DATA_BD_RESERVED2_MASK 0x7F 512 #define ETH_TX_DATA_BD_RESERVED2_SHIFT 9 513 __le16 reserved3; 514 }; 515 516 /* 517 * The common regular TX BD ring element 518 */ 519 struct eth_tx_bd 520 { 521 struct regpair addr /* Single continuous buffer */; 522 __le16 nbytes /* Number of bytes in this BD. */; 523 struct eth_tx_data_bd data /* Complementary information. */; 524 }; 525 526 527 union eth_tx_bd_types 528 { 529 struct eth_tx_1st_bd first_bd /* The first tx bd of a given packet */; 530 struct eth_tx_2nd_bd second_bd /* The second tx bd of a given packet */; 531 struct eth_tx_3rd_bd third_bd /* The third tx bd of a given packet */; 532 struct eth_tx_bd reg_bd /* The common non-special bd */; 533 }; 534 535 536 537 538 539 540 /* 541 * Eth Tx Tunnel Type 542 */ 543 enum eth_tx_tunn_type 544 { 545 ETH_TX_TUNN_GENEVE /* GENEVE Tunnel. */, 546 ETH_TX_TUNN_TTAG /* T-Tag Tunnel. */, 547 ETH_TX_TUNN_GRE /* GRE Tunnel. */, 548 ETH_TX_TUNN_VXLAN /* VXLAN Tunnel. */, 549 MAX_ETH_TX_TUNN_TYPE 550 }; 551 552 553 /* 554 * Ystorm Queue Zone 555 */ 556 struct xstorm_eth_queue_zone 557 { 558 struct coalescing_timeset int_coalescing_timeset /* Tx interrupt coalescing TimeSet */; 559 u8 reserved[7]; 560 }; 561 562 563 /* 564 * ETH doorbell data 565 */ 566 struct eth_db_data 567 { 568 u8 params; 569 #define ETH_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */ 570 #define ETH_DB_DATA_DEST_SHIFT 0 571 #define ETH_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */ 572 #define ETH_DB_DATA_AGG_CMD_SHIFT 2 573 #define ETH_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */ 574 #define ETH_DB_DATA_BYPASS_EN_SHIFT 4 575 #define ETH_DB_DATA_RESERVED_MASK 0x1 576 #define ETH_DB_DATA_RESERVED_SHIFT 5 577 #define ETH_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */ 578 #define ETH_DB_DATA_AGG_VAL_SEL_SHIFT 6 579 u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */; 580 __le16 bd_prod; 581 }; 582 583 584 /* 585 * RSS hash type 586 */ 587 enum rss_hash_type 588 { 589 RSS_HASH_TYPE_DEFAULT=0, 590 RSS_HASH_TYPE_IPV4=1, 591 RSS_HASH_TYPE_TCP_IPV4=2, 592 RSS_HASH_TYPE_IPV6=3, 593 RSS_HASH_TYPE_TCP_IPV6=4, 594 RSS_HASH_TYPE_UDP_IPV4=5, 595 RSS_HASH_TYPE_UDP_IPV6=6, 596 MAX_RSS_HASH_TYPE 597 }; 598 599 #endif /* __ETH_COMMON__ */ 600