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