ceph/src/dpdk/drivers/net/qede/base/eth_common.h

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #ifndef __ETH_COMMON__
  10 #define __ETH_COMMON__
  11 /********************/
  12 /* ETH FW CONSTANTS */
  13 /********************/
  14
  15 /* FP HSI version. FP HSI is compatible if (fwVer.major == drvVer.major &&
  16  * fwVer.minor >= drvVer.minor)
  17  */
  18 /* ETH FP HSI Major version */
  19 #define ETH_HSI_VER_MAJOR                   3
  20 /* ETH FP HSI Minor version */
  21 #define ETH_HSI_VER_MINOR                   10
  22
  23 /* Alias for 8.7.x.x/8.8.x.x ETH FP HSI MINOR version. In this version driver
  24  * is not required to set pkt_len field in eth_tx_1st_bd struct, and tunneling
  25  * offload is not supported.
  26  */
  27 #define ETH_HSI_VER_NO_PKT_LEN_TUNN         5
  28
  29 #define ETH_CACHE_LINE_SIZE                 64
  30 #define ETH_RX_CQE_GAP                      32
  31 #define ETH_MAX_RAMROD_PER_CON              8
  32 #define ETH_TX_BD_PAGE_SIZE_BYTES           4096
  33 #define ETH_RX_BD_PAGE_SIZE_BYTES           4096
  34 #define ETH_RX_CQE_PAGE_SIZE_BYTES          4096
  35 #define ETH_RX_NUM_NEXT_PAGE_BDS            2
  36
  37 #define ETH_TX_MIN_BDS_PER_NON_LSO_PKT              1
  38 #define ETH_TX_MAX_BDS_PER_NON_LSO_PACKET           18
  39 #define ETH_TX_MAX_BDS_PER_LSO_PACKET               255
  40 #define ETH_TX_MAX_LSO_HDR_NBD                      4
  41 #define ETH_TX_MIN_BDS_PER_LSO_PKT                  3
  42 #define ETH_TX_MIN_BDS_PER_TUNN_IPV6_WITH_EXT_PKT   3
  43 #define ETH_TX_MIN_BDS_PER_IPV6_WITH_EXT_PKT        2
  44 #define ETH_TX_MIN_BDS_PER_PKT_W_LOOPBACK_MODE      2
  45 /* (QM_REG_TASKBYTECRDCOST_0, QM_VOQ_BYTE_CRD_TASK_COST) -
  46  * (VLAN-TAG + CRC + IPG + PREAMBLE)
  47  */
  48 #define ETH_TX_MAX_NON_LSO_PKT_LEN                  (9700 - (4 + 4 + 12 + 8))
  49 #define ETH_TX_MAX_LSO_HDR_BYTES                    510
  50 /* Number of BDs to consider for LSO sliding window restriction is
  51  * (ETH_TX_LSO_WINDOW_BDS_NUM - hdr_nbd)
  52  */
  53 #define ETH_TX_LSO_WINDOW_BDS_NUM                   (18 - 1)
  54 /* Minimum data length (in bytes) in LSO sliding window */
  55 #define ETH_TX_LSO_WINDOW_MIN_LEN                   9700
  56 /* Maximum LSO packet TCP payload length (in bytes) */
  57 #define ETH_TX_MAX_LSO_PAYLOAD_LEN                  0xFE000
  58 /* Number of same-as-last resources in tx switching */
  59 #define ETH_TX_NUM_SAME_AS_LAST_ENTRIES             320
  60 /* Value for a connection for which same as last feature is disabled */
  61 #define ETH_TX_INACTIVE_SAME_AS_LAST                0xFFFF
  62
  63 /* Maximum number of statistics counters */
  64 #define ETH_NUM_STATISTIC_COUNTERS                  MAX_NUM_VPORTS
  65 /* Maximum number of statistics counters when doubled VF zone used */
  66 #define ETH_NUM_STATISTIC_COUNTERS_DOUBLE_VF_ZONE \
  67         (ETH_NUM_STATISTIC_COUNTERS - MAX_NUM_VFS / 2)
  68 /* Maximum number of statistics counters when quad VF zone used */
  69 #define ETH_NUM_STATISTIC_COUNTERS_QUAD_VF_ZONE \
  70         (ETH_NUM_STATISTIC_COUNTERS - 3 * MAX_NUM_VFS / 4)
  71
  72 /* Maximum number of buffers, used for RX packet placement */
  73 #define ETH_RX_MAX_BUFF_PER_PKT             5
  74
  75 /* num of MAC/VLAN filters */
  76 #define ETH_NUM_MAC_FILTERS                 512
  77 #define ETH_NUM_VLAN_FILTERS                512
  78
  79 /* approx. multicast constants */
  80 /* CRC seed for multicast bin calculation */
  81 #define ETH_MULTICAST_BIN_FROM_MAC_SEED     0
  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 /* number of RSS indirection table entries, per Vport) */
  88 #define ETH_RSS_IND_TABLE_ENTRIES_NUM       128
  89 /* Length of RSS key (in regs) */
  90 #define ETH_RSS_KEY_SIZE_REGS               10
  91 /* number of available RSS engines in K2 */
  92 #define ETH_RSS_ENGINE_NUM_K2               207
  93 /* number of available RSS engines in BB */
  94 #define ETH_RSS_ENGINE_NUM_BB               127
  95
  96 /* TPA constants */
  97 /* Maximum number of open TPA aggregations */
  98 #define ETH_TPA_MAX_AGGS_NUM              64
  99 /* Maximum number of additional buffers, reported by TPA-start CQE */
 100 #define ETH_TPA_CQE_START_LEN_LIST_SIZE   ETH_RX_MAX_BUFF_PER_PKT
 101 /* Maximum number of buffers, reported by TPA-continue CQE */
 102 #define ETH_TPA_CQE_CONT_LEN_LIST_SIZE    6
 103 /* Maximum number of buffers, reported by TPA-end CQE */
 104 #define ETH_TPA_CQE_END_LEN_LIST_SIZE     4
 105
 106 /* Control frame check constants */
 107 /* Number of etherType values configured by driver for control frame check */
 108 #define ETH_CTL_FRAME_ETH_TYPE_NUM              4
 109
 110
 111
 112 /*
 113  * Destination port mode
 114  */
 115 enum dest_port_mode {
 116         DEST_PORT_PHY /* Send to physical port. */,
 117         DEST_PORT_LOOPBACK /* Send to loopback port. */,
 118         DEST_PORT_PHY_LOOPBACK /* Send to physical and loopback port. */,
 119         DEST_PORT_DROP /* Drop the packet in PBF. */,
 120         MAX_DEST_PORT_MODE
 121 };
 122
 123
 124 /*
 125  * Ethernet address type
 126  */
 127 enum eth_addr_type {
 128         BROADCAST_ADDRESS,
 129         MULTICAST_ADDRESS,
 130         UNICAST_ADDRESS,
 131         UNKNOWN_ADDRESS,
 132         MAX_ETH_ADDR_TYPE
 133 };
 134
 135
 136 struct eth_tx_1st_bd_flags {
 137         u8 bitfields;
 138 /* Set to 1 in the first BD. (for debug) */
 139 #define ETH_TX_1ST_BD_FLAGS_START_BD_MASK         0x1
 140 #define ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT        0
 141 /* Do not allow additional VLAN manipulations on this packet. */
 142 #define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_MASK  0x1
 143 #define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_SHIFT 1
 144 /* IP checksum recalculation in needed */
 145 #define ETH_TX_1ST_BD_FLAGS_IP_CSUM_MASK          0x1
 146 #define ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT         2
 147 /* TCP/UDP checksum recalculation in needed */
 148 #define ETH_TX_1ST_BD_FLAGS_L4_CSUM_MASK          0x1
 149 #define ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT         3
 150 /* If set, need to add the VLAN in vlan field to the packet. */
 151 #define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_MASK   0x1
 152 #define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT  4
 153 /* If set, this is an LSO packet. */
 154 #define ETH_TX_1ST_BD_FLAGS_LSO_MASK              0x1
 155 #define ETH_TX_1ST_BD_FLAGS_LSO_SHIFT             5
 156 /* Recalculate Tunnel IP Checksum (if Tunnel IP Header is IPv4) */
 157 #define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_MASK     0x1
 158 #define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT    6
 159 /* Recalculate Tunnel UDP/GRE Checksum (Depending on Tunnel Type) */
 160 #define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK     0x1
 161 #define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT    7
 162 };
 163
 164 /*
 165  * The parsing information data for the first tx bd of a given packet.
 166  */
 167 struct eth_tx_data_1st_bd {
 168         __le16 vlan /* VLAN tag to insert to packet (if needed). */;
 169 /* Number of BDs in packet. Should be at least 2 in non-LSO packet and at least
 170  * 3 in LSO (or Tunnel with IPv6+ext) packet.
 171  */
 172         u8 nbds;
 173         struct eth_tx_1st_bd_flags bd_flags;
 174         __le16 bitfields;
 175 /* Indicates a tunneled packet. Must be set for encapsulated packet. */
 176 #define ETH_TX_DATA_1ST_BD_TUNN_FLAG_MASK  0x1
 177 #define ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT 0
 178 #define ETH_TX_DATA_1ST_BD_RESERVED0_MASK  0x1
 179 #define ETH_TX_DATA_1ST_BD_RESERVED0_SHIFT 1
 180 /* Total packet length - must be filled for non-LSO packets. */
 181 #define ETH_TX_DATA_1ST_BD_PKT_LEN_MASK    0x3FFF
 182 #define ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT   2
 183 };
 184
 185 /*
 186  * The parsing information data for the second tx bd of a given packet.
 187  */
 188 struct eth_tx_data_2nd_bd {
 189 /* For tunnel with IPv6+ext - Tunnel header IP datagram length (in BYTEs) */
 190         __le16 tunn_ip_size;
 191         __le16 bitfields1;
 192 /* For Tunnel header with IPv6 ext. - Inner L2 Header Size (in 2-byte WORDs) */
 193 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK  0xF
 194 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_SHIFT 0
 195 /* For Tunnel header with IPv6 ext. - Inner L2 Header MAC DA Type
 196  * (use enum eth_addr_type)
 197  */
 198 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_MASK       0x3
 199 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_SHIFT      4
 200 /* Destination port mode. (use enum dest_port_mode) */
 201 #define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_MASK            0x3
 202 #define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_SHIFT           6
 203 /* Should be 0 in all the BDs, except the first one. (for debug) */
 204 #define ETH_TX_DATA_2ND_BD_START_BD_MASK                  0x1
 205 #define ETH_TX_DATA_2ND_BD_START_BD_SHIFT                 8
 206 /* For Tunnel header with IPv6 ext. - Tunnel Type (use enum eth_tx_tunn_type) */
 207 #define ETH_TX_DATA_2ND_BD_TUNN_TYPE_MASK                 0x3
 208 #define ETH_TX_DATA_2ND_BD_TUNN_TYPE_SHIFT                9
 209 /* For LSO / Tunnel header with IPv6+ext - Set if inner header is IPv6 */
 210 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_MASK           0x1
 211 #define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_SHIFT          11
 212 /* For LSO / Tunnel header with IPv6+ext - Set if outer header has IPv6+ext */
 213 #define ETH_TX_DATA_2ND_BD_IPV6_EXT_MASK                  0x1
 214 #define ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT                 12
 215 /* Set if Tunnel header has IPv6 ext. (3rd BD is required) */
 216 #define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_MASK             0x1
 217 #define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_SHIFT            13
 218 /* Set if (inner) L4 protocol is UDP. (Required when IPv6+ext (or tunnel with
 219  * inner or outer Ipv6+ext) and l4_csum is set)
 220  */
 221 #define ETH_TX_DATA_2ND_BD_L4_UDP_MASK                    0x1
 222 #define ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT                   14
 223 /* The pseudo header checksum type in the L4 checksum field. Required when
 224  * IPv6+ext and l4_csum is set. (use enum eth_l4_pseudo_checksum_mode)
 225  */
 226 #define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_MASK       0x1
 227 #define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT      15
 228         __le16 bitfields2;
 229 /* For inner/outer header IPv6+ext - (inner) L4 header offset (in 2-byte WORDs).
 230  * For regular packet - offset from the beginning of the packet. For tunneled
 231  * packet - offset from the beginning of the inner header
 232  */
 233 #define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK     0x1FFF
 234 #define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT    0
 235 #define ETH_TX_DATA_2ND_BD_RESERVED0_MASK                 0x7
 236 #define ETH_TX_DATA_2ND_BD_RESERVED0_SHIFT                13
 237 };
 238
 239 /*
 240  * Firmware data for L2-EDPM packet.
 241  */
 242 struct eth_edpm_fw_data {
 243 /* Parsing information data from the 1st BD. */
 244         struct eth_tx_data_1st_bd data_1st_bd;
 245 /* Parsing information data from the 2nd BD. */
 246         struct eth_tx_data_2nd_bd data_2nd_bd;
 247         __le32 reserved;
 248 };
 249
 250
 251 /*
 252  * FW debug.
 253  */
 254 struct eth_fast_path_cqe_fw_debug {
 255         __le16 reserved2 /* FW reserved. */;
 256 };
 257
 258
 259 /*
 260  * tunneling parsing flags
 261  */
 262 struct eth_tunnel_parsing_flags {
 263         u8 flags;
 264 /* 0 - no tunneling, 1 - GENEVE, 2 - GRE, 3 - VXLAN
 265  * (use enum eth_rx_tunn_type)
 266  */
 267 #define ETH_TUNNEL_PARSING_FLAGS_TYPE_MASK              0x3
 268 #define ETH_TUNNEL_PARSING_FLAGS_TYPE_SHIFT             0
 269 /*  If it s not an encapsulated packet then put 0x0. If it s an encapsulated
 270  *  packet but the tenant-id doesn t exist then put 0x0. Else put 0x1
 271  *
 272  */
 273 #define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_MASK  0x1
 274 #define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_SHIFT 2
 275 /* Type of the next header above the tunneling: 0 - unknown, 1 - L2, 2 - Ipv4,
 276  * 3 - IPv6 (use enum tunnel_next_protocol)
 277  */
 278 #define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_MASK     0x3
 279 #define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_SHIFT    3
 280 /* The result of comparing the DA-ip of the tunnel header. */
 281 #define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_MASK   0x1
 282 #define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_SHIFT  5
 283 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK     0x1
 284 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT    6
 285 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_MASK      0x1
 286 #define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_SHIFT     7
 287 };
 288
 289 /*
 290  * PMD flow control bits
 291  */
 292 struct eth_pmd_flow_flags {
 293         u8 flags;
 294 #define ETH_PMD_FLOW_FLAGS_VALID_MASK     0x1 /* CQE valid bit */
 295 #define ETH_PMD_FLOW_FLAGS_VALID_SHIFT    0
 296 #define ETH_PMD_FLOW_FLAGS_TOGGLE_MASK    0x1 /* CQE ring toggle bit */
 297 #define ETH_PMD_FLOW_FLAGS_TOGGLE_SHIFT   1
 298 #define ETH_PMD_FLOW_FLAGS_RESERVED_MASK  0x3F
 299 #define ETH_PMD_FLOW_FLAGS_RESERVED_SHIFT 2
 300 };
 301
 302 /*
 303  * Regular ETH Rx FP CQE.
 304  */
 305 struct eth_fast_path_rx_reg_cqe {
 306         u8 type /* CQE type */;
 307         u8 bitfields;
 308 /* Type of calculated RSS hash (use enum rss_hash_type) */
 309 #define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_MASK  0x7
 310 #define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_SHIFT 0
 311 /* Traffic Class */
 312 #define ETH_FAST_PATH_RX_REG_CQE_TC_MASK             0xF
 313 #define ETH_FAST_PATH_RX_REG_CQE_TC_SHIFT            3
 314 #define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_MASK      0x1
 315 #define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_SHIFT     7
 316         __le16 pkt_len /* Total packet length (from the parser) */;
 317 /* Parsing and error flags from the parser */
 318         struct parsing_and_err_flags pars_flags;
 319         __le16 vlan_tag /* 802.1q VLAN tag */;
 320         __le32 rss_hash /* RSS hash result */;
 321         __le16 len_on_first_bd /* Number of bytes placed on first BD */;
 322         u8 placement_offset /* Offset of placement from BD start */;
 323 /* Tunnel Parsing Flags */
 324         struct eth_tunnel_parsing_flags tunnel_pars_flags;
 325         u8 bd_num /* Number of BDs, used for packet */;
 326         u8 reserved[9];
 327         struct eth_fast_path_cqe_fw_debug fw_debug /* FW reserved. */;
 328         u8 reserved1[3];
 329         struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
 330 };
 331
 332
 333 /*
 334  * TPA-continue ETH Rx FP CQE.
 335  */
 336 struct eth_fast_path_rx_tpa_cont_cqe {
 337         u8 type /* CQE type */;
 338         u8 tpa_agg_index /* TPA aggregation index */;
 339 /* List of the segment sizes */
 340         __le16 len_list[ETH_TPA_CQE_CONT_LEN_LIST_SIZE];
 341         u8 reserved;
 342         u8 reserved1 /* FW reserved. */;
 343         __le16 reserved2[ETH_TPA_CQE_CONT_LEN_LIST_SIZE] /* FW reserved. */;
 344         u8 reserved3[3];
 345         struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
 346 };
 347
 348
 349 /*
 350  * TPA-end ETH Rx FP CQE .
 351  */
 352 struct eth_fast_path_rx_tpa_end_cqe {
 353         u8 type /* CQE type */;
 354         u8 tpa_agg_index /* TPA aggregation index */;
 355         __le16 total_packet_len /* Total aggregated packet length */;
 356         u8 num_of_bds /* Total number of BDs comprising the packet */;
 357 /* Aggregation end reason. Use enum eth_tpa_end_reason */
 358         u8 end_reason;
 359         __le16 num_of_coalesced_segs /* Number of coalesced TCP segments */;
 360         __le32 ts_delta /* TCP timestamp delta */;
 361 /* List of the segment sizes */
 362         __le16 len_list[ETH_TPA_CQE_END_LEN_LIST_SIZE];
 363         __le16 reserved3[ETH_TPA_CQE_END_LEN_LIST_SIZE] /* FW reserved. */;
 364         __le16 reserved1;
 365         u8 reserved2 /* FW reserved. */;
 366         struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
 367 };
 368
 369
 370 /*
 371  * TPA-start ETH Rx FP CQE.
 372  */
 373 struct eth_fast_path_rx_tpa_start_cqe {
 374         u8 type /* CQE type */;
 375         u8 bitfields;
 376 /* Type of calculated RSS hash (use enum rss_hash_type) */
 377 #define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_MASK  0x7
 378 #define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_SHIFT 0
 379 /* Traffic Class */
 380 #define ETH_FAST_PATH_RX_TPA_START_CQE_TC_MASK             0xF
 381 #define ETH_FAST_PATH_RX_TPA_START_CQE_TC_SHIFT            3
 382 #define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_MASK      0x1
 383 #define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_SHIFT     7
 384         __le16 seg_len /* Segment length (packetLen from the parser) */;
 385 /* Parsing and error flags from the parser */
 386         struct parsing_and_err_flags pars_flags;
 387         __le16 vlan_tag /* 802.1q VLAN tag */;
 388         __le32 rss_hash /* RSS hash result */;
 389         __le16 len_on_first_bd /* Number of bytes placed on first BD */;
 390         u8 placement_offset /* Offset of placement from BD start */;
 391 /* Tunnel Parsing Flags */
 392         struct eth_tunnel_parsing_flags tunnel_pars_flags;
 393         u8 tpa_agg_index /* TPA aggregation index */;
 394         u8 header_len /* Packet L2+L3+L4 header length */;
 395 /* Additional BDs length list. */
 396         __le16 ext_bd_len_list[ETH_TPA_CQE_START_LEN_LIST_SIZE];
 397         struct eth_fast_path_cqe_fw_debug fw_debug /* FW reserved. */;
 398         u8 reserved;
 399         struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
 400 };
 401
 402
 403 /*
 404  * The L4 pseudo checksum mode for Ethernet
 405  */
 406 enum eth_l4_pseudo_checksum_mode {
 407 /* Pseudo Header checksum on packet is calculated with the correct packet length
 408  * field.
 409  */
 410         ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH,
 411 /* Pseudo Header checksum on packet is calculated with zero length field. */
 412         ETH_L4_PSEUDO_CSUM_ZERO_LENGTH,
 413         MAX_ETH_L4_PSEUDO_CHECKSUM_MODE
 414 };
 415
 416
 417
 418 struct eth_rx_bd {
 419         struct regpair addr /* single continues buffer */;
 420 };
 421
 422
 423 /*
 424  * regular ETH Rx SP CQE
 425  */
 426 struct eth_slow_path_rx_cqe {
 427         u8 type /* CQE type */;
 428         u8 ramrod_cmd_id;
 429         u8 error_flag;
 430         u8 reserved[25];
 431         __le16 echo;
 432         u8 reserved1;
 433         struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
 434 };
 435
 436 /*
 437  * union for all ETH Rx CQE types
 438  */
 439 union eth_rx_cqe {
 440 /* Regular FP CQE */
 441         struct eth_fast_path_rx_reg_cqe fast_path_regular;
 442 /* TPA-start CQE */
 443         struct eth_fast_path_rx_tpa_start_cqe fast_path_tpa_start;
 444 /* TPA-continue CQE */
 445         struct eth_fast_path_rx_tpa_cont_cqe fast_path_tpa_cont;
 446 /* TPA-end CQE */
 447         struct eth_fast_path_rx_tpa_end_cqe fast_path_tpa_end;
 448         struct eth_slow_path_rx_cqe slow_path /* SP CQE */;
 449 };
 450
 451
 452 /*
 453  * ETH Rx CQE type
 454  */
 455 enum eth_rx_cqe_type {
 456         ETH_RX_CQE_TYPE_UNUSED,
 457         ETH_RX_CQE_TYPE_REGULAR /* Regular FP ETH Rx CQE */,
 458         ETH_RX_CQE_TYPE_SLOW_PATH /* Slow path ETH Rx CQE */,
 459         ETH_RX_CQE_TYPE_TPA_START /* TPA start ETH Rx CQE */,
 460         ETH_RX_CQE_TYPE_TPA_CONT /* TPA Continue ETH Rx CQE */,
 461         ETH_RX_CQE_TYPE_TPA_END /* TPA end ETH Rx CQE */,
 462         MAX_ETH_RX_CQE_TYPE
 463 };
 464
 465
 466 /*
 467  * Wrapper for PD RX CQE - used in order to cover full cache line when writing
 468  * CQE
 469  */
 470 struct eth_rx_pmd_cqe {
 471         union eth_rx_cqe cqe /* CQE data itself */;
 472         u8 reserved[ETH_RX_CQE_GAP];
 473 };
 474
 475
 476 /*
 477  * Eth RX Tunnel Type
 478  */
 479 enum eth_rx_tunn_type {
 480         ETH_RX_NO_TUNN /* No Tunnel. */,
 481         ETH_RX_TUNN_GENEVE /* GENEVE Tunnel. */,
 482         ETH_RX_TUNN_GRE /* GRE Tunnel. */,
 483         ETH_RX_TUNN_VXLAN /* VXLAN Tunnel. */,
 484         MAX_ETH_RX_TUNN_TYPE
 485 };
 486
 487
 488
 489 /*
 490  * Aggregation end reason.
 491  */
 492 enum eth_tpa_end_reason {
 493         ETH_AGG_END_UNUSED,
 494         ETH_AGG_END_SP_UPDATE /* SP configuration update */,
 495 /* Maximum aggregation length or maximum buffer number used. */
 496         ETH_AGG_END_MAX_LEN,
 497 /* TCP PSH flag or TCP payload length below continue threshold. */
 498         ETH_AGG_END_LAST_SEG,
 499         ETH_AGG_END_TIMEOUT /* Timeout expiration. */,
 500 /* Packet header not consistency: different IPv4 TOS, TTL or flags, IPv6 TC,
 501  * Hop limit or Flow label, TCP header length or TS options. In GRO different
 502  * TS value, SMAC, DMAC, ackNum, windowSize or VLAN
 503  */
 504         ETH_AGG_END_NOT_CONSISTENT,
 505 /* Out of order or retransmission packet: sequence, ack or timestamp not
 506  * consistent with previous segment.
 507  */
 508         ETH_AGG_END_OUT_OF_ORDER,
 509 /* Next segment cant be aggregated due to LLC/SNAP, IP error, IP fragment, IPv4
 510  * options, IPv6 extension, IP ECN = CE, TCP errors, TCP options, zero TCP
 511  * payload length , TCP flags or not supported tunnel header options.
 512  */
 513         ETH_AGG_END_NON_TPA_SEG,
 514         MAX_ETH_TPA_END_REASON
 515 };
 516
 517
 518
 519 /*
 520  * The first tx bd of a given packet
 521  */
 522 struct eth_tx_1st_bd {
 523         struct regpair addr /* Single continuous buffer */;
 524         __le16 nbytes /* Number of bytes in this BD. */;
 525         struct eth_tx_data_1st_bd data /* Parsing information data. */;
 526 };
 527
 528
 529
 530 /*
 531  * The second tx bd of a given packet
 532  */
 533 struct eth_tx_2nd_bd {
 534         struct regpair addr /* Single continuous buffer */;
 535         __le16 nbytes /* Number of bytes in this BD. */;
 536         struct eth_tx_data_2nd_bd data /* Parsing information data. */;
 537 };
 538
 539
 540 /*
 541  * The parsing information data for the third tx bd of a given packet.
 542  */
 543 struct eth_tx_data_3rd_bd {
 544         __le16 lso_mss /* For LSO packet - the MSS in bytes. */;
 545         __le16 bitfields;
 546 /* For LSO with inner/outer IPv6+ext - TCP header length (in 4-byte WORDs) */
 547 #define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK  0xF
 548 #define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT 0
 549 /* LSO - number of BDs which contain headers. value should be in range
 550  * (1..ETH_TX_MAX_LSO_HDR_NBD).
 551  */
 552 #define ETH_TX_DATA_3RD_BD_HDR_NBD_MASK         0xF
 553 #define ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT        4
 554 /* Should be 0 in all the BDs, except the first one. (for debug) */
 555 #define ETH_TX_DATA_3RD_BD_START_BD_MASK        0x1
 556 #define ETH_TX_DATA_3RD_BD_START_BD_SHIFT       8
 557 #define ETH_TX_DATA_3RD_BD_RESERVED0_MASK       0x7F
 558 #define ETH_TX_DATA_3RD_BD_RESERVED0_SHIFT      9
 559 /* For tunnel with IPv6+ext - Pointer to tunnel L4 Header (in 2-byte WORDs) */
 560         u8 tunn_l4_hdr_start_offset_w;
 561 /* For tunnel with IPv6+ext - Total size of Tunnel Header (in 2-byte WORDs) */
 562         u8 tunn_hdr_size_w;
 563 };
 564
 565 /*
 566  * The third tx bd of a given packet
 567  */
 568 struct eth_tx_3rd_bd {
 569         struct regpair addr /* Single continuous buffer */;
 570         __le16 nbytes /* Number of bytes in this BD. */;
 571         struct eth_tx_data_3rd_bd data /* Parsing information data. */;
 572 };
 573
 574
 575 /*
 576  * Complementary information for the regular tx bd of a given packet.
 577  */
 578 struct eth_tx_data_bd {
 579         __le16 reserved0;
 580         __le16 bitfields;
 581 #define ETH_TX_DATA_BD_RESERVED1_MASK  0xFF
 582 #define ETH_TX_DATA_BD_RESERVED1_SHIFT 0
 583 /* Should be 0 in all the BDs, except the first one. (for debug) */
 584 #define ETH_TX_DATA_BD_START_BD_MASK   0x1
 585 #define ETH_TX_DATA_BD_START_BD_SHIFT  8
 586 #define ETH_TX_DATA_BD_RESERVED2_MASK  0x7F
 587 #define ETH_TX_DATA_BD_RESERVED2_SHIFT 9
 588         __le16 reserved3;
 589 };
 590
 591 /*
 592  * The common regular TX BD ring element
 593  */
 594 struct eth_tx_bd {
 595         struct regpair addr /* Single continuous buffer */;
 596         __le16 nbytes /* Number of bytes in this BD. */;
 597         struct eth_tx_data_bd data /* Complementary information. */;
 598 };
 599
 600
 601 union eth_tx_bd_types {
 602         struct eth_tx_1st_bd first_bd /* The first tx bd of a given packet */;
 603 /* The second tx bd of a given packet */
 604         struct eth_tx_2nd_bd second_bd;
 605         struct eth_tx_3rd_bd third_bd /* The third tx bd of a given packet */;
 606         struct eth_tx_bd reg_bd /* The common non-special bd */;
 607 };
 608
 609
 610
 611
 612
 613
 614 /*
 615  * Eth Tx Tunnel Type
 616  */
 617 enum eth_tx_tunn_type {
 618         ETH_TX_TUNN_GENEVE /* GENEVE Tunnel. */,
 619         ETH_TX_TUNN_TTAG /* T-Tag Tunnel. */,
 620         ETH_TX_TUNN_GRE /* GRE Tunnel. */,
 621         ETH_TX_TUNN_VXLAN /* VXLAN Tunnel. */,
 622         MAX_ETH_TX_TUNN_TYPE
 623 };
 624
 625
 626 /*
 627  * Ystorm Queue Zone
 628  */
 629 struct xstorm_eth_queue_zone {
 630 /* Tx interrupt coalescing TimeSet */
 631         struct coalescing_timeset int_coalescing_timeset;
 632         u8 reserved[7];
 633 };
 634
 635
 636 /*
 637  * ETH doorbell data
 638  */
 639 struct eth_db_data {
 640         u8 params;
 641 /* destination of doorbell (use enum db_dest) */
 642 #define ETH_DB_DATA_DEST_MASK         0x3
 643 #define ETH_DB_DATA_DEST_SHIFT        0
 644 /* aggregative command to CM (use enum db_agg_cmd_sel) */
 645 #define ETH_DB_DATA_AGG_CMD_MASK      0x3
 646 #define ETH_DB_DATA_AGG_CMD_SHIFT     2
 647 #define ETH_DB_DATA_BYPASS_EN_MASK    0x1 /* enable QM bypass */
 648 #define ETH_DB_DATA_BYPASS_EN_SHIFT   4
 649 #define ETH_DB_DATA_RESERVED_MASK     0x1
 650 #define ETH_DB_DATA_RESERVED_SHIFT    5
 651 /* aggregative value selection */
 652 #define ETH_DB_DATA_AGG_VAL_SEL_MASK  0x3
 653 #define ETH_DB_DATA_AGG_VAL_SEL_SHIFT 6
 654 /* bit for every DQ counter flags in CM context that DQ can increment */
 655         u8 agg_flags;
 656         __le16 bd_prod;
 657 };
 658
 659 #endif /* __ETH_COMMON__ */