drivers/net/ethernet/ibm/ibmvnic.h

   1 /**************************************************************************/
   2 /*                                                                        */
   3 /*  IBM System i and System p Virtual NIC Device Driver                   */
   4 /*  Copyright (C) 2014 IBM Corp.                                          */
   5 /*  Santiago Leon ([email protected])                                  */
   6 /*  Thomas Falcon ([email protected])                           */
   7 /*  John Allen ([email protected])                                */
   8 /*                                                                        */
   9 /*  This program is free software; you can redistribute it and/or modify  */
  10 /*  it under the terms of the GNU General Public License as published by  */
  11 /*  the Free Software Foundation; either version 2 of the License, or     */
  12 /*  (at your option) any later version.                                   */
  13 /*                                                                        */
  14 /*  This program is distributed in the hope that it will be useful,       */
  15 /*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
  16 /*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
  17 /*  GNU General Public License for more details.                          */
  18 /*                                                                        */
  19 /*  You should have received a copy of the GNU General Public License     */
  20 /*  along with this program.                                              */
  21 /*                                                                        */
  22 /* This module contains the implementation of a virtual ethernet device   */
  23 /* for use with IBM i/pSeries LPAR Linux.  It utilizes the logical LAN    */
  24 /* option of the RS/6000 Platform Architecture to interface with virtual */
  25 /* ethernet NICs that are presented to the partition by the hypervisor.   */
  26 /*                                                                        */
  27 /**************************************************************************/
  28
  29 #define IBMVNIC_NAME            "ibmvnic"
  30 #define IBMVNIC_DRIVER_VERSION  "1.0.1"
  31 #define IBMVNIC_INVALID_MAP     -1
  32 #define IBMVNIC_STATS_TIMEOUT   1
  33 #define IBMVNIC_INIT_FAILED     2
  34
  35 /* basic structures plus 100 2k buffers */
  36 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT  610305
  37
  38 /* Initial module_parameters */
  39 #define IBMVNIC_RX_WEIGHT               16
  40 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
  41 #define IBMVNIC_BUFFS_PER_POOL  100
  42 #define IBMVNIC_MAX_QUEUES      16
  43 #define IBMVNIC_MAX_QUEUE_SZ   4096
  44
  45 #define IBMVNIC_TSO_BUF_SZ      65536
  46 #define IBMVNIC_TSO_BUFS        64
  47 #define IBMVNIC_TSO_POOL_MASK   0x80000000
  48
  49 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
  50 #define IBMVNIC_BUFFER_HLEN 500
  51
  52 static const char ibmvnic_priv_flags[][ETH_GSTRING_LEN] = {
  53 #define IBMVNIC_USE_SERVER_MAXES 0x1
  54         "use-server-maxes"
  55 };
  56
  57 struct ibmvnic_login_buffer {
  58         __be32 len;
  59         __be32 version;
  60 #define INITIAL_VERSION_LB 1
  61         __be32 num_txcomp_subcrqs;
  62         __be32 off_txcomp_subcrqs;
  63         __be32 num_rxcomp_subcrqs;
  64         __be32 off_rxcomp_subcrqs;
  65         __be32 login_rsp_ioba;
  66         __be32 login_rsp_len;
  67         __be32 client_data_offset;
  68         __be32 client_data_len;
  69 } __packed __aligned(8);
  70
  71 struct ibmvnic_login_rsp_buffer {
  72         __be32 len;
  73         __be32 version;
  74 #define INITIAL_VERSION_LRB 1
  75         __be32 num_txsubm_subcrqs;
  76         __be32 off_txsubm_subcrqs;
  77         __be32 num_rxadd_subcrqs;
  78         __be32 off_rxadd_subcrqs;
  79         __be32 off_rxadd_buff_size;
  80         __be32 num_supp_tx_desc;
  81         __be32 off_supp_tx_desc;
  82 } __packed __aligned(8);
  83
  84 struct ibmvnic_query_ip_offload_buffer {
  85         __be32 len;
  86         __be32 version;
  87 #define INITIAL_VERSION_IOB 1
  88         u8 ipv4_chksum;
  89         u8 ipv6_chksum;
  90         u8 tcp_ipv4_chksum;
  91         u8 tcp_ipv6_chksum;
  92         u8 udp_ipv4_chksum;
  93         u8 udp_ipv6_chksum;
  94         u8 large_tx_ipv4;
  95         u8 large_tx_ipv6;
  96         u8 large_rx_ipv4;
  97         u8 large_rx_ipv6;
  98         u8 reserved1[14];
  99         __be16 max_ipv4_header_size;
 100         __be16 max_ipv6_header_size;
 101         __be16 max_tcp_header_size;
 102         __be16 max_udp_header_size;
 103         __be32 max_large_tx_size;
 104         __be32 max_large_rx_size;
 105         u8 reserved2[16];
 106         u8 ipv6_extension_header;
 107 #define IPV6_EH_NOT_SUPPORTED   0x00
 108 #define IPV6_EH_SUPPORTED_LIM   0x01
 109 #define IPV6_EH_SUPPORTED       0xFF
 110         u8 tcp_pseudosum_req;
 111 #define TCP_PS_NOT_REQUIRED     0x00
 112 #define TCP_PS_REQUIRED         0x01
 113         u8 reserved3[30];
 114         __be16 num_ipv6_ext_headers;
 115         __be32 off_ipv6_ext_headers;
 116         u8 reserved4[154];
 117 } __packed __aligned(8);
 118
 119 struct ibmvnic_control_ip_offload_buffer {
 120         __be32 len;
 121         __be32 version;
 122 #define INITIAL_VERSION_IOB 1
 123         u8 ipv4_chksum;
 124         u8 ipv6_chksum;
 125         u8 tcp_ipv4_chksum;
 126         u8 tcp_ipv6_chksum;
 127         u8 udp_ipv4_chksum;
 128         u8 udp_ipv6_chksum;
 129         u8 large_tx_ipv4;
 130         u8 large_tx_ipv6;
 131         u8 bad_packet_rx;
 132         u8 large_rx_ipv4;
 133         u8 large_rx_ipv6;
 134         u8 reserved4[111];
 135 } __packed __aligned(8);
 136
 137 struct ibmvnic_fw_component {
 138         u8 name[48];
 139         __be32 trace_buff_size;
 140         u8 correlator;
 141         u8 trace_level;
 142         u8 parent_correlator;
 143         u8 error_check_level;
 144         u8 trace_on;
 145         u8 reserved[7];
 146         u8 description[192];
 147 } __packed __aligned(8);
 148
 149 struct ibmvnic_fw_trace_entry {
 150         __be32 trace_id;
 151         u8 num_valid_data;
 152         u8 reserved[3];
 153         __be64 pmc_registers;
 154         __be64 timebase;
 155         __be64 trace_data[5];
 156 } __packed __aligned(8);
 157
 158 struct ibmvnic_statistics {
 159         __be32 version;
 160         __be32 promiscuous;
 161         __be64 rx_packets;
 162         __be64 rx_bytes;
 163         __be64 tx_packets;
 164         __be64 tx_bytes;
 165         __be64 ucast_tx_packets;
 166         __be64 ucast_rx_packets;
 167         __be64 mcast_tx_packets;
 168         __be64 mcast_rx_packets;
 169         __be64 bcast_tx_packets;
 170         __be64 bcast_rx_packets;
 171         __be64 align_errors;
 172         __be64 fcs_errors;
 173         __be64 single_collision_frames;
 174         __be64 multi_collision_frames;
 175         __be64 sqe_test_errors;
 176         __be64 deferred_tx;
 177         __be64 late_collisions;
 178         __be64 excess_collisions;
 179         __be64 internal_mac_tx_errors;
 180         __be64 carrier_sense;
 181         __be64 too_long_frames;
 182         __be64 internal_mac_rx_errors;
 183         u8 reserved[72];
 184 } __packed __aligned(8);
 185
 186 #define NUM_TX_STATS 3
 187 struct ibmvnic_tx_queue_stats {
 188         u64 packets;
 189         u64 bytes;
 190         u64 dropped_packets;
 191 };
 192
 193 #define NUM_RX_STATS 3
 194 struct ibmvnic_rx_queue_stats {
 195         u64 packets;
 196         u64 bytes;
 197         u64 interrupts;
 198 };
 199
 200 struct ibmvnic_acl_buffer {
 201         __be32 len;
 202         __be32 version;
 203 #define INITIAL_VERSION_IOB 1
 204         u8 mac_acls_restrict;
 205         u8 vlan_acls_restrict;
 206         u8 reserved1[22];
 207         __be32 num_mac_addrs;
 208         __be32 offset_mac_addrs;
 209         __be32 num_vlan_ids;
 210         __be32 offset_vlan_ids;
 211         u8 reserved2[80];
 212 } __packed __aligned(8);
 213
 214 /* descriptors have been changed, how should this be defined?  1? 4? */
 215
 216 #define IBMVNIC_TX_DESC_VERSIONS 3
 217
 218 /* is this still needed? */
 219 struct ibmvnic_tx_comp_desc {
 220         u8 first;
 221         u8 num_comps;
 222         __be16 rcs[5];
 223         __be32 correlators[5];
 224 } __packed __aligned(8);
 225
 226 /* some flags that included in v0 descriptor, which is gone
 227  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
 228  * and only in some offload_flags variable that doesn't seem
 229  * to be used anywhere, can probably be removed?
 230  */
 231
 232 #define IBMVNIC_TCP_CHKSUM              0x20
 233 #define IBMVNIC_UDP_CHKSUM              0x08
 234
 235 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
 236
 237 struct ibmvnic_tx_desc {
 238         u8 first;
 239         u8 type;
 240
 241 #define IBMVNIC_TX_DESC 0x10
 242         u8 n_crq_elem;
 243         u8 n_sge;
 244         u8 flags1;
 245 #define IBMVNIC_TX_COMP_NEEDED          0x80
 246 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 247 #define IBMVNIC_TX_LSO                  0x20
 248 #define IBMVNIC_TX_PROT_TCP             0x10
 249 #define IBMVNIC_TX_PROT_UDP             0x08
 250 #define IBMVNIC_TX_PROT_IPV4            0x04
 251 #define IBMVNIC_TX_PROT_IPV6            0x02
 252 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 253         u8 flags2;
 254 #define IBMVNIC_TX_VLAN_INSERT          0x80
 255         __be16 mss;
 256         u8 reserved[4];
 257         __be32 correlator;
 258         __be16 vlan_id;
 259         __be16 dma_reg;
 260         __be32 sge_len;
 261         __be64 ioba;
 262 } __packed __aligned(8);
 263
 264 struct ibmvnic_hdr_desc {
 265         u8 first;
 266         u8 type;
 267 #define IBMVNIC_HDR_DESC                0x11
 268         u8 len;
 269         u8 l2_len;
 270         __be16 l3_len;
 271         u8 l4_len;
 272         u8 flag;
 273         u8 data[24];
 274 } __packed __aligned(8);
 275
 276 struct ibmvnic_hdr_ext_desc {
 277         u8 first;
 278         u8 type;
 279 #define IBMVNIC_HDR_EXT_DESC            0x12
 280         u8 len;
 281         u8 data[29];
 282 } __packed __aligned(8);
 283
 284 struct ibmvnic_sge_desc {
 285         u8 first;
 286         u8 type;
 287 #define IBMVNIC_SGE_DESC                0x30
 288         __be16 sge1_dma_reg;
 289         __be32 sge1_len;
 290         __be64 sge1_ioba;
 291         __be16 reserved;
 292         __be16 sge2_dma_reg;
 293         __be32 sge2_len;
 294         __be64 sge2_ioba;
 295 } __packed __aligned(8);
 296
 297 struct ibmvnic_rx_comp_desc {
 298         u8 first;
 299         u8 flags;
 300 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 301 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 302 #define IBMVNIC_END_FRAME                       0x20
 303 #define IBMVNIC_EXACT_MC                        0x10
 304 #define IBMVNIC_VLAN_STRIPPED                   0x08
 305         __be16 off_frame_data;
 306         __be32 len;
 307         __be64 correlator;
 308         __be16 vlan_tci;
 309         __be16 rc;
 310         u8 reserved[12];
 311 } __packed __aligned(8);
 312
 313 struct ibmvnic_generic_scrq {
 314         u8 first;
 315         u8 reserved[31];
 316 } __packed __aligned(8);
 317
 318 struct ibmvnic_rx_buff_add_desc {
 319         u8 first;
 320         u8 reserved[7];
 321         __be64 correlator;
 322         __be32 ioba;
 323         u8 map_id;
 324         __be32 len:24;
 325         u8 reserved2[8];
 326 } __packed __aligned(8);
 327
 328 struct ibmvnic_rc {
 329         u8 code; /* one of enum ibmvnic_rc_codes */
 330         u8 detailed_data[3];
 331 } __packed __aligned(4);
 332
 333 struct ibmvnic_generic_crq {
 334         u8 first;
 335         u8 cmd;
 336         u8 params[10];
 337         struct ibmvnic_rc rc;
 338 } __packed __aligned(8);
 339
 340 struct ibmvnic_version_exchange {
 341         u8 first;
 342         u8 cmd;
 343         __be16 version;
 344 #define IBMVNIC_INITIAL_VERSION 1
 345         u8 reserved[8];
 346         struct ibmvnic_rc rc;
 347 } __packed __aligned(8);
 348
 349 struct ibmvnic_capability {
 350         u8 first;
 351         u8 cmd;
 352         __be16 capability; /* one of ibmvnic_capabilities */
 353         __be64 number;
 354         struct ibmvnic_rc rc;
 355 } __packed __aligned(8);
 356
 357 struct ibmvnic_login {
 358         u8 first;
 359         u8 cmd;
 360         u8 reserved[6];
 361         __be32 ioba;
 362         __be32 len;
 363 } __packed __aligned(8);
 364
 365 struct ibmvnic_phys_parms {
 366         u8 first;
 367         u8 cmd;
 368         u8 flags1;
 369 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 370 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 371 #define IBMVNIC_PROMISC         0x20
 372 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 373 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 374 #define IBMVNIC_FULL_DUPLEX     0x04
 375 #define IBMVNIC_HALF_DUPLEX     0x02
 376 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 377         u8 flags2;
 378 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 379         __be32 speed;
 380 #define IBMVNIC_AUTONEG         0x80
 381 #define IBMVNIC_10MBPS          0x40
 382 #define IBMVNIC_100MBPS         0x20
 383 #define IBMVNIC_1GBPS           0x10
 384 #define IBMVNIC_10GBPS          0x08
 385         __be32 mtu;
 386         struct ibmvnic_rc rc;
 387 } __packed __aligned(8);
 388
 389 struct ibmvnic_logical_link_state {
 390         u8 first;
 391         u8 cmd;
 392         u8 link_state;
 393 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 394 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 395 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 396         u8 reserved[9];
 397         struct ibmvnic_rc rc;
 398 } __packed __aligned(8);
 399
 400 struct ibmvnic_query_ip_offload {
 401         u8 first;
 402         u8 cmd;
 403         u8 reserved[2];
 404         __be32 len;
 405         __be32 ioba;
 406         struct ibmvnic_rc rc;
 407 } __packed __aligned(8);
 408
 409 struct ibmvnic_control_ip_offload {
 410         u8 first;
 411         u8 cmd;
 412         u8 reserved[2];
 413         __be32 ioba;
 414         __be32 len;
 415         struct ibmvnic_rc rc;
 416 } __packed __aligned(8);
 417
 418 struct ibmvnic_request_dump_size {
 419         u8 first;
 420         u8 cmd;
 421         u8 reserved[6];
 422         __be32 len;
 423         struct ibmvnic_rc rc;
 424 } __packed __aligned(8);
 425
 426 struct ibmvnic_request_dump {
 427         u8 first;
 428         u8 cmd;
 429         u8 reserved1[2];
 430         __be32 ioba;
 431         __be32 len;
 432         u8 reserved2[4];
 433 } __packed __aligned(8);
 434
 435 struct ibmvnic_request_dump_rsp {
 436         u8 first;
 437         u8 cmd;
 438         u8 reserved[6];
 439         __be32 dumped_len;
 440         struct ibmvnic_rc rc;
 441 } __packed __aligned(8);
 442
 443 struct ibmvnic_request_ras_comp_num {
 444         u8 first;
 445         u8 cmd;
 446         u8 reserved1[2];
 447         __be32 num_components;
 448         u8 reserved2[4];
 449         struct ibmvnic_rc rc;
 450 } __packed __aligned(8);
 451
 452 struct ibmvnic_request_ras_comps {
 453         u8 first;
 454         u8 cmd;
 455         u8 reserved[2];
 456         __be32 ioba;
 457         __be32 len;
 458         struct ibmvnic_rc rc;
 459 } __packed __aligned(8);
 460
 461 struct ibmvnic_control_ras {
 462         u8 first;
 463         u8 cmd;
 464         u8 correlator;
 465         u8 level;
 466         u8 op;
 467 #define IBMVNIC_TRACE_LEVEL     1
 468 #define IBMVNIC_ERROR_LEVEL     2
 469 #define IBMVNIC_TRACE_PAUSE     3
 470 #define IBMVNIC_TRACE_RESUME    4
 471 #define IBMVNIC_TRACE_ON                5
 472 #define IBMVNIC_TRACE_OFF               6
 473 #define IBMVNIC_CHG_TRACE_BUFF_SZ       7
 474         u8 trace_buff_sz[3];
 475         u8 reserved[4];
 476         struct ibmvnic_rc rc;
 477 } __packed __aligned(8);
 478
 479 struct ibmvnic_collect_fw_trace {
 480         u8 first;
 481         u8 cmd;
 482         u8 correlator;
 483         u8 reserved;
 484         __be32 ioba;
 485         __be32 len;
 486         struct ibmvnic_rc rc;
 487 } __packed __aligned(8);
 488
 489 struct ibmvnic_request_statistics {
 490         u8 first;
 491         u8 cmd;
 492         u8 flags;
 493 #define IBMVNIC_PHYSICAL_PORT   0x80
 494         u8 reserved1;
 495         __be32 ioba;
 496         __be32 len;
 497         u8 reserved[4];
 498 } __packed __aligned(8);
 499
 500 struct ibmvnic_request_debug_stats {
 501         u8 first;
 502         u8 cmd;
 503         u8 reserved[2];
 504         __be32 ioba;
 505         __be32 len;
 506         struct ibmvnic_rc rc;
 507 } __packed __aligned(8);
 508
 509 struct ibmvnic_error_indication {
 510         u8 first;
 511         u8 cmd;
 512         u8 flags;
 513 #define IBMVNIC_FATAL_ERROR     0x80
 514         u8 reserved1;
 515         __be32 error_id;
 516         __be32 detail_error_sz;
 517         __be16 error_cause;
 518         u8 reserved2[2];
 519 } __packed __aligned(8);
 520
 521 struct ibmvnic_link_state_indication {
 522         u8 first;
 523         u8 cmd;
 524         u8 reserved1[2];
 525         u8 phys_link_state;
 526         u8 logical_link_state;
 527         u8 reserved2[10];
 528 } __packed __aligned(8);
 529
 530 struct ibmvnic_change_mac_addr {
 531         u8 first;
 532         u8 cmd;
 533         u8 mac_addr[6];
 534         u8 reserved[4];
 535         struct ibmvnic_rc rc;
 536 } __packed __aligned(8);
 537
 538 struct ibmvnic_multicast_ctrl {
 539         u8 first;
 540         u8 cmd;
 541         u8 mac_addr[6];
 542         u8 flags;
 543 #define IBMVNIC_ENABLE_MC               0x80
 544 #define IBMVNIC_DISABLE_MC              0x40
 545 #define IBMVNIC_ENABLE_ALL              0x20
 546 #define IBMVNIC_DISABLE_ALL     0x10
 547         u8 reserved1;
 548         __be16 reserved2; /* was num_enabled_mc_addr; */
 549         struct ibmvnic_rc rc;
 550 } __packed __aligned(8);
 551
 552 struct ibmvnic_get_vpd_size {
 553         u8 first;
 554         u8 cmd;
 555         u8 reserved[14];
 556 } __packed __aligned(8);
 557
 558 struct ibmvnic_get_vpd_size_rsp {
 559         u8 first;
 560         u8 cmd;
 561         u8 reserved[2];
 562         __be64 len;
 563         struct ibmvnic_rc rc;
 564 } __packed __aligned(8);
 565
 566 struct ibmvnic_get_vpd {
 567         u8 first;
 568         u8 cmd;
 569         u8 reserved1[2];
 570         __be32 ioba;
 571         __be32 len;
 572         u8 reserved[4];
 573 } __packed __aligned(8);
 574
 575 struct ibmvnic_get_vpd_rsp {
 576         u8 first;
 577         u8 cmd;
 578         u8 reserved[10];
 579         struct ibmvnic_rc rc;
 580 } __packed __aligned(8);
 581
 582 struct ibmvnic_acl_change_indication {
 583         u8 first;
 584         u8 cmd;
 585         __be16 change_type;
 586 #define IBMVNIC_MAC_ACL 0
 587 #define IBMVNIC_VLAN_ACL 1
 588         u8 reserved[12];
 589 } __packed __aligned(8);
 590
 591 struct ibmvnic_acl_query {
 592         u8 first;
 593         u8 cmd;
 594         u8 reserved1[2];
 595         __be32 ioba;
 596         __be32 len;
 597         u8 reserved2[4];
 598 } __packed __aligned(8);
 599
 600 struct ibmvnic_tune {
 601         u8 first;
 602         u8 cmd;
 603         u8 reserved1[2];
 604         __be32 ioba;
 605         __be32 len;
 606         u8 reserved2[4];
 607 } __packed __aligned(8);
 608
 609 struct ibmvnic_request_map {
 610         u8 first;
 611         u8 cmd;
 612         u8 reserved1;
 613         u8 map_id;
 614         __be32 ioba;
 615         __be32 len;
 616         u8 reserved2[4];
 617 } __packed __aligned(8);
 618
 619 struct ibmvnic_request_map_rsp {
 620         u8 first;
 621         u8 cmd;
 622         u8 reserved1;
 623         u8 map_id;
 624         u8 reserved2[8];
 625         struct ibmvnic_rc rc;
 626 } __packed __aligned(8);
 627
 628 struct ibmvnic_request_unmap {
 629         u8 first;
 630         u8 cmd;
 631         u8 reserved1;
 632         u8 map_id;
 633         u8 reserved2[12];
 634 } __packed __aligned(8);
 635
 636 struct ibmvnic_request_unmap_rsp {
 637         u8 first;
 638         u8 cmd;
 639         u8 reserved1;
 640         u8 map_id;
 641         u8 reserved2[8];
 642         struct ibmvnic_rc rc;
 643 } __packed __aligned(8);
 644
 645 struct ibmvnic_query_map {
 646         u8 first;
 647         u8 cmd;
 648         u8 reserved[14];
 649 } __packed __aligned(8);
 650
 651 struct ibmvnic_query_map_rsp {
 652         u8 first;
 653         u8 cmd;
 654         u8 reserved;
 655         u8 page_size;
 656         __be32 tot_pages;
 657         __be32 free_pages;
 658         struct ibmvnic_rc rc;
 659 } __packed __aligned(8);
 660
 661 union ibmvnic_crq {
 662         struct ibmvnic_generic_crq generic;
 663         struct ibmvnic_version_exchange version_exchange;
 664         struct ibmvnic_version_exchange version_exchange_rsp;
 665         struct ibmvnic_capability query_capability;
 666         struct ibmvnic_capability query_capability_rsp;
 667         struct ibmvnic_capability request_capability;
 668         struct ibmvnic_capability request_capability_rsp;
 669         struct ibmvnic_login login;
 670         struct ibmvnic_generic_crq login_rsp;
 671         struct ibmvnic_phys_parms query_phys_parms;
 672         struct ibmvnic_phys_parms query_phys_parms_rsp;
 673         struct ibmvnic_phys_parms query_phys_capabilities;
 674         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 675         struct ibmvnic_phys_parms set_phys_parms;
 676         struct ibmvnic_phys_parms set_phys_parms_rsp;
 677         struct ibmvnic_logical_link_state logical_link_state;
 678         struct ibmvnic_logical_link_state logical_link_state_rsp;
 679         struct ibmvnic_query_ip_offload query_ip_offload;
 680         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 681         struct ibmvnic_control_ip_offload control_ip_offload;
 682         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 683         struct ibmvnic_request_dump_size request_dump_size;
 684         struct ibmvnic_request_dump_size request_dump_size_rsp;
 685         struct ibmvnic_request_dump request_dump;
 686         struct ibmvnic_request_dump_rsp request_dump_rsp;
 687         struct ibmvnic_request_ras_comp_num request_ras_comp_num;
 688         struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
 689         struct ibmvnic_request_ras_comps request_ras_comps;
 690         struct ibmvnic_request_ras_comps request_ras_comps_rsp;
 691         struct ibmvnic_control_ras control_ras;
 692         struct ibmvnic_control_ras control_ras_rsp;
 693         struct ibmvnic_collect_fw_trace collect_fw_trace;
 694         struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
 695         struct ibmvnic_request_statistics request_statistics;
 696         struct ibmvnic_generic_crq request_statistics_rsp;
 697         struct ibmvnic_request_debug_stats request_debug_stats;
 698         struct ibmvnic_request_debug_stats request_debug_stats_rsp;
 699         struct ibmvnic_error_indication error_indication;
 700         struct ibmvnic_link_state_indication link_state_indication;
 701         struct ibmvnic_change_mac_addr change_mac_addr;
 702         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 703         struct ibmvnic_multicast_ctrl multicast_ctrl;
 704         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 705         struct ibmvnic_get_vpd_size get_vpd_size;
 706         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 707         struct ibmvnic_get_vpd get_vpd;
 708         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 709         struct ibmvnic_acl_change_indication acl_change_indication;
 710         struct ibmvnic_acl_query acl_query;
 711         struct ibmvnic_generic_crq acl_query_rsp;
 712         struct ibmvnic_tune tune;
 713         struct ibmvnic_generic_crq tune_rsp;
 714         struct ibmvnic_request_map request_map;
 715         struct ibmvnic_request_map_rsp request_map_rsp;
 716         struct ibmvnic_request_unmap request_unmap;
 717         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 718         struct ibmvnic_query_map query_map;
 719         struct ibmvnic_query_map_rsp query_map_rsp;
 720 };
 721
 722 enum ibmvnic_rc_codes {
 723         SUCCESS = 0,
 724         PARTIALSUCCESS = 1,
 725         PERMISSION = 2,
 726         NOMEMORY = 3,
 727         PARAMETER = 4,
 728         UNKNOWNCOMMAND = 5,
 729         ABORTED = 6,
 730         INVALIDSTATE = 7,
 731         INVALIDIOBA = 8,
 732         INVALIDLENGTH = 9,
 733         UNSUPPORTEDOPTION = 10,
 734 };
 735
 736 enum ibmvnic_capabilities {
 737         MIN_TX_QUEUES = 1,
 738         MIN_RX_QUEUES = 2,
 739         MIN_RX_ADD_QUEUES = 3,
 740         MAX_TX_QUEUES = 4,
 741         MAX_RX_QUEUES = 5,
 742         MAX_RX_ADD_QUEUES = 6,
 743         REQ_TX_QUEUES = 7,
 744         REQ_RX_QUEUES = 8,
 745         REQ_RX_ADD_QUEUES = 9,
 746         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 747         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 748         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 749         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 750         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 751         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 752         TCP_IP_OFFLOAD = 16,
 753         PROMISC_REQUESTED = 17,
 754         PROMISC_SUPPORTED = 18,
 755         MIN_MTU = 19,
 756         MAX_MTU = 20,
 757         REQ_MTU = 21,
 758         MAX_MULTICAST_FILTERS = 22,
 759         VLAN_HEADER_INSERTION = 23,
 760         RX_VLAN_HEADER_INSERTION = 24,
 761         MAX_TX_SG_ENTRIES = 25,
 762         RX_SG_SUPPORTED = 26,
 763         RX_SG_REQUESTED = 27,
 764         OPT_TX_COMP_SUB_QUEUES = 28,
 765         OPT_RX_COMP_QUEUES = 29,
 766         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 767         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 768         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 769         TX_RX_DESC_REQ = 33,
 770 };
 771
 772 enum ibmvnic_error_cause {
 773         ADAPTER_PROBLEM = 0,
 774         BUS_PROBLEM = 1,
 775         FW_PROBLEM = 2,
 776         DD_PROBLEM = 3,
 777         EEH_RECOVERY = 4,
 778         FW_UPDATED = 5,
 779         LOW_MEMORY = 6,
 780 };
 781
 782 enum ibmvnic_commands {
 783         VERSION_EXCHANGE = 0x01,
 784         VERSION_EXCHANGE_RSP = 0x81,
 785         QUERY_CAPABILITY = 0x02,
 786         QUERY_CAPABILITY_RSP = 0x82,
 787         REQUEST_CAPABILITY = 0x03,
 788         REQUEST_CAPABILITY_RSP = 0x83,
 789         LOGIN = 0x04,
 790         LOGIN_RSP = 0x84,
 791         QUERY_PHYS_PARMS = 0x05,
 792         QUERY_PHYS_PARMS_RSP = 0x85,
 793         QUERY_PHYS_CAPABILITIES = 0x06,
 794         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 795         SET_PHYS_PARMS = 0x07,
 796         SET_PHYS_PARMS_RSP = 0x87,
 797         ERROR_INDICATION = 0x08,
 798         LOGICAL_LINK_STATE = 0x0C,
 799         LOGICAL_LINK_STATE_RSP = 0x8C,
 800         REQUEST_STATISTICS = 0x0D,
 801         REQUEST_STATISTICS_RSP = 0x8D,
 802         COLLECT_FW_TRACE = 0x11,
 803         COLLECT_FW_TRACE_RSP = 0x91,
 804         LINK_STATE_INDICATION = 0x12,
 805         CHANGE_MAC_ADDR = 0x13,
 806         CHANGE_MAC_ADDR_RSP = 0x93,
 807         MULTICAST_CTRL = 0x14,
 808         MULTICAST_CTRL_RSP = 0x94,
 809         GET_VPD_SIZE = 0x15,
 810         GET_VPD_SIZE_RSP = 0x95,
 811         GET_VPD = 0x16,
 812         GET_VPD_RSP = 0x96,
 813         TUNE = 0x17,
 814         TUNE_RSP = 0x97,
 815         QUERY_IP_OFFLOAD = 0x18,
 816         QUERY_IP_OFFLOAD_RSP = 0x98,
 817         CONTROL_IP_OFFLOAD = 0x19,
 818         CONTROL_IP_OFFLOAD_RSP = 0x99,
 819         ACL_CHANGE_INDICATION = 0x1A,
 820         ACL_QUERY = 0x1B,
 821         ACL_QUERY_RSP = 0x9B,
 822         QUERY_MAP = 0x1D,
 823         QUERY_MAP_RSP = 0x9D,
 824         REQUEST_MAP = 0x1E,
 825         REQUEST_MAP_RSP = 0x9E,
 826         REQUEST_UNMAP = 0x1F,
 827         REQUEST_UNMAP_RSP = 0x9F,
 828         VLAN_CTRL = 0x20,
 829         VLAN_CTRL_RSP = 0xA0,
 830 };
 831
 832 enum ibmvnic_crq_type {
 833         IBMVNIC_CRQ_CMD                 = 0x80,
 834         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 835         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 836         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 837         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 838 };
 839
 840 enum ibmvfc_crq_format {
 841         IBMVNIC_CRQ_INIT                 = 0x01,
 842         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 843         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 844         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 845 };
 846
 847 struct ibmvnic_crq_queue {
 848         union ibmvnic_crq *msgs;
 849         int size, cur;
 850         dma_addr_t msg_token;
 851         spinlock_t lock;
 852         bool active;
 853 };
 854
 855 union sub_crq {
 856         struct ibmvnic_generic_scrq generic;
 857         struct ibmvnic_tx_comp_desc tx_comp;
 858         struct ibmvnic_tx_desc v1;
 859         struct ibmvnic_hdr_desc hdr;
 860         struct ibmvnic_hdr_ext_desc hdr_ext;
 861         struct ibmvnic_sge_desc sge;
 862         struct ibmvnic_rx_comp_desc rx_comp;
 863         struct ibmvnic_rx_buff_add_desc rx_add;
 864 };
 865
 866 struct ibmvnic_sub_crq_queue {
 867         union sub_crq *msgs;
 868         int size, cur;
 869         dma_addr_t msg_token;
 870         unsigned long crq_num;
 871         unsigned long hw_irq;
 872         unsigned int irq;
 873         unsigned int pool_index;
 874         int scrq_num;
 875         spinlock_t lock;
 876         struct sk_buff *rx_skb_top;
 877         struct ibmvnic_adapter *adapter;
 878         atomic_t used;
 879 };
 880
 881 struct ibmvnic_long_term_buff {
 882         unsigned char *buff;
 883         dma_addr_t addr;
 884         u64 size;
 885         u8 map_id;
 886 };
 887
 888 struct ibmvnic_tx_buff {
 889         struct sk_buff *skb;
 890         dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
 891         unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
 892         int index;
 893         int pool_index;
 894         bool last_frag;
 895         union sub_crq indir_arr[6];
 896         u8 hdr_data[140];
 897         dma_addr_t indir_dma;
 898         int num_entries;
 899 };
 900
 901 struct ibmvnic_tx_pool {
 902         struct ibmvnic_tx_buff *tx_buff;
 903         int *free_map;
 904         int consumer_index;
 905         int producer_index;
 906         struct ibmvnic_long_term_buff long_term_buff;
 907         int num_buffers;
 908         int buf_size;
 909 };
 910
 911 struct ibmvnic_rx_buff {
 912         struct sk_buff *skb;
 913         dma_addr_t dma;
 914         unsigned char *data;
 915         int size;
 916         int pool_index;
 917 };
 918
 919 struct ibmvnic_rx_pool {
 920         struct ibmvnic_rx_buff *rx_buff;
 921         int size;
 922         int index;
 923         int buff_size;
 924         atomic_t available;
 925         int *free_map;
 926         int next_free;
 927         int next_alloc;
 928         int active;
 929         struct ibmvnic_long_term_buff long_term_buff;
 930 };
 931
 932 struct ibmvnic_vpd {
 933         unsigned char *buff;
 934         dma_addr_t dma_addr;
 935         u64 len;
 936 };
 937
 938 enum vnic_state {VNIC_PROBING = 1,
 939                  VNIC_PROBED,
 940                  VNIC_OPENING,
 941                  VNIC_OPEN,
 942                  VNIC_CLOSING,
 943                  VNIC_CLOSED,
 944                  VNIC_REMOVING,
 945                  VNIC_REMOVED};
 946
 947 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 948                            VNIC_RESET_MOBILITY,
 949                            VNIC_RESET_FATAL,
 950                            VNIC_RESET_NON_FATAL,
 951                            VNIC_RESET_TIMEOUT,
 952                            VNIC_RESET_CHANGE_PARAM};
 953
 954 struct ibmvnic_rwi {
 955         enum ibmvnic_reset_reason reset_reason;
 956         struct list_head list;
 957 };
 958
 959 struct ibmvnic_tunables {
 960         u64 rx_queues;
 961         u64 tx_queues;
 962         u64 rx_entries;
 963         u64 tx_entries;
 964         u64 mtu;
 965         struct sockaddr mac;
 966 };
 967
 968 struct ibmvnic_adapter {
 969         struct vio_dev *vdev;
 970         struct net_device *netdev;
 971         struct ibmvnic_crq_queue crq;
 972         u8 mac_addr[ETH_ALEN];
 973         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 974         dma_addr_t ip_offload_tok;
 975         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 976         dma_addr_t ip_offload_ctrl_tok;
 977         u32 msg_enable;
 978         u32 priv_flags;
 979
 980         /* Vital Product Data (VPD) */
 981         struct ibmvnic_vpd *vpd;
 982         char fw_version[32];
 983
 984         /* Statistics */
 985         struct ibmvnic_statistics stats;
 986         dma_addr_t stats_token;
 987         struct completion stats_done;
 988         spinlock_t stats_lock;
 989         int replenish_no_mem;
 990         int replenish_add_buff_success;
 991         int replenish_add_buff_failure;
 992         int replenish_task_cycles;
 993         int tx_send_failed;
 994         int tx_map_failed;
 995
 996         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
 997         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
 998
 999         int phys_link_state;
1000         int logical_link_state;
1001
1002         /* login data */
1003         struct ibmvnic_login_buffer *login_buf;
1004         dma_addr_t login_buf_token;
1005         int login_buf_sz;
1006
1007         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1008         dma_addr_t login_rsp_buf_token;
1009         int login_rsp_buf_sz;
1010
1011         atomic_t running_cap_crqs;
1012         bool wait_capability;
1013
1014         struct ibmvnic_sub_crq_queue **tx_scrq;
1015         struct ibmvnic_sub_crq_queue **rx_scrq;
1016
1017         /* rx structs */
1018         struct napi_struct *napi;
1019         struct ibmvnic_rx_pool *rx_pool;
1020         u64 promisc;
1021
1022         struct ibmvnic_tx_pool *tx_pool;
1023         struct ibmvnic_tx_pool *tso_pool;
1024         struct completion init_done;
1025         int init_done_rc;
1026
1027         struct completion fw_done;
1028         int fw_done_rc;
1029
1030         struct completion reset_done;
1031         int reset_done_rc;
1032         bool wait_for_reset;
1033
1034         /* partner capabilities */
1035         u64 min_tx_queues;
1036         u64 min_rx_queues;
1037         u64 min_rx_add_queues;
1038         u64 max_tx_queues;
1039         u64 max_rx_queues;
1040         u64 max_rx_add_queues;
1041         u64 req_tx_queues;
1042         u64 req_rx_queues;
1043         u64 req_rx_add_queues;
1044         u64 min_tx_entries_per_subcrq;
1045         u64 min_rx_add_entries_per_subcrq;
1046         u64 max_tx_entries_per_subcrq;
1047         u64 max_rx_add_entries_per_subcrq;
1048         u64 req_tx_entries_per_subcrq;
1049         u64 req_rx_add_entries_per_subcrq;
1050         u64 tcp_ip_offload;
1051         u64 promisc_requested;
1052         u64 promisc_supported;
1053         u64 min_mtu;
1054         u64 max_mtu;
1055         u64 req_mtu;
1056         u64 max_multicast_filters;
1057         u64 vlan_header_insertion;
1058         u64 rx_vlan_header_insertion;
1059         u64 max_tx_sg_entries;
1060         u64 rx_sg_supported;
1061         u64 rx_sg_requested;
1062         u64 opt_tx_comp_sub_queues;
1063         u64 opt_rx_comp_queues;
1064         u64 opt_rx_bufadd_q_per_rx_comp_q;
1065         u64 opt_tx_entries_per_subcrq;
1066         u64 opt_rxba_entries_per_subcrq;
1067         __be64 tx_rx_desc_req;
1068         u8 map_id;
1069         u32 num_active_rx_scrqs;
1070         u32 num_active_rx_pools;
1071         u32 num_active_rx_napi;
1072         u32 num_active_tx_scrqs;
1073         u32 num_active_tx_pools;
1074
1075         struct tasklet_struct tasklet;
1076         enum vnic_state state;
1077         enum ibmvnic_reset_reason reset_reason;
1078         struct mutex reset_lock, rwi_lock;
1079         struct list_head rwi_list;
1080         struct work_struct ibmvnic_reset;
1081         bool resetting;
1082         bool napi_enabled, from_passive_init;
1083
1084         bool mac_change_pending;
1085         bool failover_pending;
1086         bool force_reset_recovery;
1087
1088         struct ibmvnic_tunables desired;
1089         struct ibmvnic_tunables fallback;
1090 };