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 (santi_leon@yahoo.com)                                  */
   6 /*  Thomas Falcon (tlfalcon@linux.vnet.ibm.com)                           */
   7 /*  John Allen (jallen@linux.vnet.ibm.com)                                */
   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      10
  43
  44 #define IBMVNIC_TSO_BUF_SZ      65536
  45 #define IBMVNIC_TSO_BUFS        64
  46 #define IBMVNIC_TSO_POOL_MASK   0x80000000
  47
  48 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
  49 #define IBMVNIC_BUFFER_HLEN 500
  50
  51 struct ibmvnic_login_buffer {
  52         __be32 len;
  53         __be32 version;
  54 #define INITIAL_VERSION_LB 1
  55         __be32 num_txcomp_subcrqs;
  56         __be32 off_txcomp_subcrqs;
  57         __be32 num_rxcomp_subcrqs;
  58         __be32 off_rxcomp_subcrqs;
  59         __be32 login_rsp_ioba;
  60         __be32 login_rsp_len;
  61         __be32 client_data_offset;
  62         __be32 client_data_len;
  63 } __packed __aligned(8);
  64
  65 struct ibmvnic_login_rsp_buffer {
  66         __be32 len;
  67         __be32 version;
  68 #define INITIAL_VERSION_LRB 1
  69         __be32 num_txsubm_subcrqs;
  70         __be32 off_txsubm_subcrqs;
  71         __be32 num_rxadd_subcrqs;
  72         __be32 off_rxadd_subcrqs;
  73         __be32 off_rxadd_buff_size;
  74         __be32 num_supp_tx_desc;
  75         __be32 off_supp_tx_desc;
  76 } __packed __aligned(8);
  77
  78 struct ibmvnic_query_ip_offload_buffer {
  79         __be32 len;
  80         __be32 version;
  81 #define INITIAL_VERSION_IOB 1
  82         u8 ipv4_chksum;
  83         u8 ipv6_chksum;
  84         u8 tcp_ipv4_chksum;
  85         u8 tcp_ipv6_chksum;
  86         u8 udp_ipv4_chksum;
  87         u8 udp_ipv6_chksum;
  88         u8 large_tx_ipv4;
  89         u8 large_tx_ipv6;
  90         u8 large_rx_ipv4;
  91         u8 large_rx_ipv6;
  92         u8 reserved1[14];
  93         __be16 max_ipv4_header_size;
  94         __be16 max_ipv6_header_size;
  95         __be16 max_tcp_header_size;
  96         __be16 max_udp_header_size;
  97         __be32 max_large_tx_size;
  98         __be32 max_large_rx_size;
  99         u8 reserved2[16];
 100         u8 ipv6_extension_header;
 101 #define IPV6_EH_NOT_SUPPORTED   0x00
 102 #define IPV6_EH_SUPPORTED_LIM   0x01
 103 #define IPV6_EH_SUPPORTED       0xFF
 104         u8 tcp_pseudosum_req;
 105 #define TCP_PS_NOT_REQUIRED     0x00
 106 #define TCP_PS_REQUIRED         0x01
 107         u8 reserved3[30];
 108         __be16 num_ipv6_ext_headers;
 109         __be32 off_ipv6_ext_headers;
 110         u8 reserved4[154];
 111 } __packed __aligned(8);
 112
 113 struct ibmvnic_control_ip_offload_buffer {
 114         __be32 len;
 115         __be32 version;
 116 #define INITIAL_VERSION_IOB 1
 117         u8 ipv4_chksum;
 118         u8 ipv6_chksum;
 119         u8 tcp_ipv4_chksum;
 120         u8 tcp_ipv6_chksum;
 121         u8 udp_ipv4_chksum;
 122         u8 udp_ipv6_chksum;
 123         u8 large_tx_ipv4;
 124         u8 large_tx_ipv6;
 125         u8 bad_packet_rx;
 126         u8 large_rx_ipv4;
 127         u8 large_rx_ipv6;
 128         u8 reserved4[111];
 129 } __packed __aligned(8);
 130
 131 struct ibmvnic_fw_component {
 132         u8 name[48];
 133         __be32 trace_buff_size;
 134         u8 correlator;
 135         u8 trace_level;
 136         u8 parent_correlator;
 137         u8 error_check_level;
 138         u8 trace_on;
 139         u8 reserved[7];
 140         u8 description[192];
 141 } __packed __aligned(8);
 142
 143 struct ibmvnic_fw_trace_entry {
 144         __be32 trace_id;
 145         u8 num_valid_data;
 146         u8 reserved[3];
 147         __be64 pmc_registers;
 148         __be64 timebase;
 149         __be64 trace_data[5];
 150 } __packed __aligned(8);
 151
 152 struct ibmvnic_statistics {
 153         __be32 version;
 154         __be32 promiscuous;
 155         __be64 rx_packets;
 156         __be64 rx_bytes;
 157         __be64 tx_packets;
 158         __be64 tx_bytes;
 159         __be64 ucast_tx_packets;
 160         __be64 ucast_rx_packets;
 161         __be64 mcast_tx_packets;
 162         __be64 mcast_rx_packets;
 163         __be64 bcast_tx_packets;
 164         __be64 bcast_rx_packets;
 165         __be64 align_errors;
 166         __be64 fcs_errors;
 167         __be64 single_collision_frames;
 168         __be64 multi_collision_frames;
 169         __be64 sqe_test_errors;
 170         __be64 deferred_tx;
 171         __be64 late_collisions;
 172         __be64 excess_collisions;
 173         __be64 internal_mac_tx_errors;
 174         __be64 carrier_sense;
 175         __be64 too_long_frames;
 176         __be64 internal_mac_rx_errors;
 177         u8 reserved[72];
 178 } __packed __aligned(8);
 179
 180 #define NUM_TX_STATS 3
 181 struct ibmvnic_tx_queue_stats {
 182         u64 packets;
 183         u64 bytes;
 184         u64 dropped_packets;
 185 };
 186
 187 #define NUM_RX_STATS 3
 188 struct ibmvnic_rx_queue_stats {
 189         u64 packets;
 190         u64 bytes;
 191         u64 interrupts;
 192 };
 193
 194 struct ibmvnic_acl_buffer {
 195         __be32 len;
 196         __be32 version;
 197 #define INITIAL_VERSION_IOB 1
 198         u8 mac_acls_restrict;
 199         u8 vlan_acls_restrict;
 200         u8 reserved1[22];
 201         __be32 num_mac_addrs;
 202         __be32 offset_mac_addrs;
 203         __be32 num_vlan_ids;
 204         __be32 offset_vlan_ids;
 205         u8 reserved2[80];
 206 } __packed __aligned(8);
 207
 208 /* descriptors have been changed, how should this be defined?  1? 4? */
 209
 210 #define IBMVNIC_TX_DESC_VERSIONS 3
 211
 212 /* is this still needed? */
 213 struct ibmvnic_tx_comp_desc {
 214         u8 first;
 215         u8 num_comps;
 216         __be16 rcs[5];
 217         __be32 correlators[5];
 218 } __packed __aligned(8);
 219
 220 /* some flags that included in v0 descriptor, which is gone
 221  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
 222  * and only in some offload_flags variable that doesn't seem
 223  * to be used anywhere, can probably be removed?
 224  */
 225
 226 #define IBMVNIC_TCP_CHKSUM              0x20
 227 #define IBMVNIC_UDP_CHKSUM              0x08
 228
 229 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
 230
 231 struct ibmvnic_tx_desc {
 232         u8 first;
 233         u8 type;
 234
 235 #define IBMVNIC_TX_DESC 0x10
 236         u8 n_crq_elem;
 237         u8 n_sge;
 238         u8 flags1;
 239 #define IBMVNIC_TX_COMP_NEEDED          0x80
 240 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 241 #define IBMVNIC_TX_LSO                  0x20
 242 #define IBMVNIC_TX_PROT_TCP             0x10
 243 #define IBMVNIC_TX_PROT_UDP             0x08
 244 #define IBMVNIC_TX_PROT_IPV4            0x04
 245 #define IBMVNIC_TX_PROT_IPV6            0x02
 246 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 247         u8 flags2;
 248 #define IBMVNIC_TX_VLAN_INSERT          0x80
 249         __be16 mss;
 250         u8 reserved[4];
 251         __be32 correlator;
 252         __be16 vlan_id;
 253         __be16 dma_reg;
 254         __be32 sge_len;
 255         __be64 ioba;
 256 } __packed __aligned(8);
 257
 258 struct ibmvnic_hdr_desc {
 259         u8 first;
 260         u8 type;
 261 #define IBMVNIC_HDR_DESC                0x11
 262         u8 len;
 263         u8 l2_len;
 264         __be16 l3_len;
 265         u8 l4_len;
 266         u8 flag;
 267         u8 data[24];
 268 } __packed __aligned(8);
 269
 270 struct ibmvnic_hdr_ext_desc {
 271         u8 first;
 272         u8 type;
 273 #define IBMVNIC_HDR_EXT_DESC            0x12
 274         u8 len;
 275         u8 data[29];
 276 } __packed __aligned(8);
 277
 278 struct ibmvnic_sge_desc {
 279         u8 first;
 280         u8 type;
 281 #define IBMVNIC_SGE_DESC                0x30
 282         __be16 sge1_dma_reg;
 283         __be32 sge1_len;
 284         __be64 sge1_ioba;
 285         __be16 reserved;
 286         __be16 sge2_dma_reg;
 287         __be32 sge2_len;
 288         __be64 sge2_ioba;
 289 } __packed __aligned(8);
 290
 291 struct ibmvnic_rx_comp_desc {
 292         u8 first;
 293         u8 flags;
 294 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 295 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 296 #define IBMVNIC_END_FRAME                       0x20
 297 #define IBMVNIC_EXACT_MC                        0x10
 298 #define IBMVNIC_VLAN_STRIPPED                   0x08
 299         __be16 off_frame_data;
 300         __be32 len;
 301         __be64 correlator;
 302         __be16 vlan_tci;
 303         __be16 rc;
 304         u8 reserved[12];
 305 } __packed __aligned(8);
 306
 307 struct ibmvnic_generic_scrq {
 308         u8 first;
 309         u8 reserved[31];
 310 } __packed __aligned(8);
 311
 312 struct ibmvnic_rx_buff_add_desc {
 313         u8 first;
 314         u8 reserved[7];
 315         __be64 correlator;
 316         __be32 ioba;
 317         u8 map_id;
 318         __be32 len:24;
 319         u8 reserved2[8];
 320 } __packed __aligned(8);
 321
 322 struct ibmvnic_rc {
 323         u8 code; /* one of enum ibmvnic_rc_codes */
 324         u8 detailed_data[3];
 325 } __packed __aligned(4);
 326
 327 struct ibmvnic_generic_crq {
 328         u8 first;
 329         u8 cmd;
 330         u8 params[10];
 331         struct ibmvnic_rc rc;
 332 } __packed __aligned(8);
 333
 334 struct ibmvnic_version_exchange {
 335         u8 first;
 336         u8 cmd;
 337         __be16 version;
 338 #define IBMVNIC_INITIAL_VERSION 1
 339         u8 reserved[8];
 340         struct ibmvnic_rc rc;
 341 } __packed __aligned(8);
 342
 343 struct ibmvnic_capability {
 344         u8 first;
 345         u8 cmd;
 346         __be16 capability; /* one of ibmvnic_capabilities */
 347         __be64 number;
 348         struct ibmvnic_rc rc;
 349 } __packed __aligned(8);
 350
 351 struct ibmvnic_login {
 352         u8 first;
 353         u8 cmd;
 354         u8 reserved[6];
 355         __be32 ioba;
 356         __be32 len;
 357 } __packed __aligned(8);
 358
 359 struct ibmvnic_phys_parms {
 360         u8 first;
 361         u8 cmd;
 362         u8 flags1;
 363 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 364 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 365 #define IBMVNIC_PROMISC         0x20
 366 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 367 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 368 #define IBMVNIC_FULL_DUPLEX     0x04
 369 #define IBMVNIC_HALF_DUPLEX     0x02
 370 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 371         u8 flags2;
 372 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 373         __be32 speed;
 374 #define IBMVNIC_AUTONEG         0x80
 375 #define IBMVNIC_10MBPS          0x40
 376 #define IBMVNIC_100MBPS         0x20
 377 #define IBMVNIC_1GBPS           0x10
 378 #define IBMVNIC_10GBPS          0x08
 379         __be32 mtu;
 380         struct ibmvnic_rc rc;
 381 } __packed __aligned(8);
 382
 383 struct ibmvnic_logical_link_state {
 384         u8 first;
 385         u8 cmd;
 386         u8 link_state;
 387 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 388 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 389 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 390         u8 reserved[9];
 391         struct ibmvnic_rc rc;
 392 } __packed __aligned(8);
 393
 394 struct ibmvnic_query_ip_offload {
 395         u8 first;
 396         u8 cmd;
 397         u8 reserved[2];
 398         __be32 len;
 399         __be32 ioba;
 400         struct ibmvnic_rc rc;
 401 } __packed __aligned(8);
 402
 403 struct ibmvnic_control_ip_offload {
 404         u8 first;
 405         u8 cmd;
 406         u8 reserved[2];
 407         __be32 ioba;
 408         __be32 len;
 409         struct ibmvnic_rc rc;
 410 } __packed __aligned(8);
 411
 412 struct ibmvnic_request_dump_size {
 413         u8 first;
 414         u8 cmd;
 415         u8 reserved[6];
 416         __be32 len;
 417         struct ibmvnic_rc rc;
 418 } __packed __aligned(8);
 419
 420 struct ibmvnic_request_dump {
 421         u8 first;
 422         u8 cmd;
 423         u8 reserved1[2];
 424         __be32 ioba;
 425         __be32 len;
 426         u8 reserved2[4];
 427 } __packed __aligned(8);
 428
 429 struct ibmvnic_request_dump_rsp {
 430         u8 first;
 431         u8 cmd;
 432         u8 reserved[6];
 433         __be32 dumped_len;
 434         struct ibmvnic_rc rc;
 435 } __packed __aligned(8);
 436
 437 struct ibmvnic_request_ras_comp_num {
 438         u8 first;
 439         u8 cmd;
 440         u8 reserved1[2];
 441         __be32 num_components;
 442         u8 reserved2[4];
 443         struct ibmvnic_rc rc;
 444 } __packed __aligned(8);
 445
 446 struct ibmvnic_request_ras_comps {
 447         u8 first;
 448         u8 cmd;
 449         u8 reserved[2];
 450         __be32 ioba;
 451         __be32 len;
 452         struct ibmvnic_rc rc;
 453 } __packed __aligned(8);
 454
 455 struct ibmvnic_control_ras {
 456         u8 first;
 457         u8 cmd;
 458         u8 correlator;
 459         u8 level;
 460         u8 op;
 461 #define IBMVNIC_TRACE_LEVEL     1
 462 #define IBMVNIC_ERROR_LEVEL     2
 463 #define IBMVNIC_TRACE_PAUSE     3
 464 #define IBMVNIC_TRACE_RESUME    4
 465 #define IBMVNIC_TRACE_ON                5
 466 #define IBMVNIC_TRACE_OFF               6
 467 #define IBMVNIC_CHG_TRACE_BUFF_SZ       7
 468         u8 trace_buff_sz[3];
 469         u8 reserved[4];
 470         struct ibmvnic_rc rc;
 471 } __packed __aligned(8);
 472
 473 struct ibmvnic_collect_fw_trace {
 474         u8 first;
 475         u8 cmd;
 476         u8 correlator;
 477         u8 reserved;
 478         __be32 ioba;
 479         __be32 len;
 480         struct ibmvnic_rc rc;
 481 } __packed __aligned(8);
 482
 483 struct ibmvnic_request_statistics {
 484         u8 first;
 485         u8 cmd;
 486         u8 flags;
 487 #define IBMVNIC_PHYSICAL_PORT   0x80
 488         u8 reserved1;
 489         __be32 ioba;
 490         __be32 len;
 491         u8 reserved[4];
 492 } __packed __aligned(8);
 493
 494 struct ibmvnic_request_debug_stats {
 495         u8 first;
 496         u8 cmd;
 497         u8 reserved[2];
 498         __be32 ioba;
 499         __be32 len;
 500         struct ibmvnic_rc rc;
 501 } __packed __aligned(8);
 502
 503 struct ibmvnic_error_indication {
 504         u8 first;
 505         u8 cmd;
 506         u8 flags;
 507 #define IBMVNIC_FATAL_ERROR     0x80
 508         u8 reserved1;
 509         __be32 error_id;
 510         __be32 detail_error_sz;
 511         __be16 error_cause;
 512         u8 reserved2[2];
 513 } __packed __aligned(8);
 514
 515 struct ibmvnic_request_error_info {
 516         u8 first;
 517         u8 cmd;
 518         u8 reserved[2];
 519         __be32 ioba;
 520         __be32 len;
 521         __be32 error_id;
 522 } __packed __aligned(8);
 523
 524 struct ibmvnic_request_error_rsp {
 525         u8 first;
 526         u8 cmd;
 527         u8 reserved[2];
 528         __be32 error_id;
 529         __be32 len;
 530         struct ibmvnic_rc rc;
 531 } __packed __aligned(8);
 532
 533 struct ibmvnic_link_state_indication {
 534         u8 first;
 535         u8 cmd;
 536         u8 reserved1[2];
 537         u8 phys_link_state;
 538         u8 logical_link_state;
 539         u8 reserved2[10];
 540 } __packed __aligned(8);
 541
 542 struct ibmvnic_change_mac_addr {
 543         u8 first;
 544         u8 cmd;
 545         u8 mac_addr[6];
 546         u8 reserved[4];
 547         struct ibmvnic_rc rc;
 548 } __packed __aligned(8);
 549
 550 struct ibmvnic_multicast_ctrl {
 551         u8 first;
 552         u8 cmd;
 553         u8 mac_addr[6];
 554         u8 flags;
 555 #define IBMVNIC_ENABLE_MC               0x80
 556 #define IBMVNIC_DISABLE_MC              0x40
 557 #define IBMVNIC_ENABLE_ALL              0x20
 558 #define IBMVNIC_DISABLE_ALL     0x10
 559         u8 reserved1;
 560         __be16 reserved2; /* was num_enabled_mc_addr; */
 561         struct ibmvnic_rc rc;
 562 } __packed __aligned(8);
 563
 564 struct ibmvnic_get_vpd_size {
 565         u8 first;
 566         u8 cmd;
 567         u8 reserved[14];
 568 } __packed __aligned(8);
 569
 570 struct ibmvnic_get_vpd_size_rsp {
 571         u8 first;
 572         u8 cmd;
 573         u8 reserved[2];
 574         __be64 len;
 575         struct ibmvnic_rc rc;
 576 } __packed __aligned(8);
 577
 578 struct ibmvnic_get_vpd {
 579         u8 first;
 580         u8 cmd;
 581         u8 reserved1[2];
 582         __be32 ioba;
 583         __be32 len;
 584         u8 reserved[4];
 585 } __packed __aligned(8);
 586
 587 struct ibmvnic_get_vpd_rsp {
 588         u8 first;
 589         u8 cmd;
 590         u8 reserved[10];
 591         struct ibmvnic_rc rc;
 592 } __packed __aligned(8);
 593
 594 struct ibmvnic_acl_change_indication {
 595         u8 first;
 596         u8 cmd;
 597         __be16 change_type;
 598 #define IBMVNIC_MAC_ACL 0
 599 #define IBMVNIC_VLAN_ACL 1
 600         u8 reserved[12];
 601 } __packed __aligned(8);
 602
 603 struct ibmvnic_acl_query {
 604         u8 first;
 605         u8 cmd;
 606         u8 reserved1[2];
 607         __be32 ioba;
 608         __be32 len;
 609         u8 reserved2[4];
 610 } __packed __aligned(8);
 611
 612 struct ibmvnic_tune {
 613         u8 first;
 614         u8 cmd;
 615         u8 reserved1[2];
 616         __be32 ioba;
 617         __be32 len;
 618         u8 reserved2[4];
 619 } __packed __aligned(8);
 620
 621 struct ibmvnic_request_map {
 622         u8 first;
 623         u8 cmd;
 624         u8 reserved1;
 625         u8 map_id;
 626         __be32 ioba;
 627         __be32 len;
 628         u8 reserved2[4];
 629 } __packed __aligned(8);
 630
 631 struct ibmvnic_request_map_rsp {
 632         u8 first;
 633         u8 cmd;
 634         u8 reserved1;
 635         u8 map_id;
 636         u8 reserved2[8];
 637         struct ibmvnic_rc rc;
 638 } __packed __aligned(8);
 639
 640 struct ibmvnic_request_unmap {
 641         u8 first;
 642         u8 cmd;
 643         u8 reserved1;
 644         u8 map_id;
 645         u8 reserved2[12];
 646 } __packed __aligned(8);
 647
 648 struct ibmvnic_request_unmap_rsp {
 649         u8 first;
 650         u8 cmd;
 651         u8 reserved1;
 652         u8 map_id;
 653         u8 reserved2[8];
 654         struct ibmvnic_rc rc;
 655 } __packed __aligned(8);
 656
 657 struct ibmvnic_query_map {
 658         u8 first;
 659         u8 cmd;
 660         u8 reserved[14];
 661 } __packed __aligned(8);
 662
 663 struct ibmvnic_query_map_rsp {
 664         u8 first;
 665         u8 cmd;
 666         u8 reserved;
 667         u8 page_size;
 668         __be32 tot_pages;
 669         __be32 free_pages;
 670         struct ibmvnic_rc rc;
 671 } __packed __aligned(8);
 672
 673 union ibmvnic_crq {
 674         struct ibmvnic_generic_crq generic;
 675         struct ibmvnic_version_exchange version_exchange;
 676         struct ibmvnic_version_exchange version_exchange_rsp;
 677         struct ibmvnic_capability query_capability;
 678         struct ibmvnic_capability query_capability_rsp;
 679         struct ibmvnic_capability request_capability;
 680         struct ibmvnic_capability request_capability_rsp;
 681         struct ibmvnic_login login;
 682         struct ibmvnic_generic_crq login_rsp;
 683         struct ibmvnic_phys_parms query_phys_parms;
 684         struct ibmvnic_phys_parms query_phys_parms_rsp;
 685         struct ibmvnic_phys_parms query_phys_capabilities;
 686         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 687         struct ibmvnic_phys_parms set_phys_parms;
 688         struct ibmvnic_phys_parms set_phys_parms_rsp;
 689         struct ibmvnic_logical_link_state logical_link_state;
 690         struct ibmvnic_logical_link_state logical_link_state_rsp;
 691         struct ibmvnic_query_ip_offload query_ip_offload;
 692         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 693         struct ibmvnic_control_ip_offload control_ip_offload;
 694         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 695         struct ibmvnic_request_dump_size request_dump_size;
 696         struct ibmvnic_request_dump_size request_dump_size_rsp;
 697         struct ibmvnic_request_dump request_dump;
 698         struct ibmvnic_request_dump_rsp request_dump_rsp;
 699         struct ibmvnic_request_ras_comp_num request_ras_comp_num;
 700         struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
 701         struct ibmvnic_request_ras_comps request_ras_comps;
 702         struct ibmvnic_request_ras_comps request_ras_comps_rsp;
 703         struct ibmvnic_control_ras control_ras;
 704         struct ibmvnic_control_ras control_ras_rsp;
 705         struct ibmvnic_collect_fw_trace collect_fw_trace;
 706         struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
 707         struct ibmvnic_request_statistics request_statistics;
 708         struct ibmvnic_generic_crq request_statistics_rsp;
 709         struct ibmvnic_request_debug_stats request_debug_stats;
 710         struct ibmvnic_request_debug_stats request_debug_stats_rsp;
 711         struct ibmvnic_error_indication error_indication;
 712         struct ibmvnic_request_error_info request_error_info;
 713         struct ibmvnic_request_error_rsp request_error_rsp;
 714         struct ibmvnic_link_state_indication link_state_indication;
 715         struct ibmvnic_change_mac_addr change_mac_addr;
 716         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 717         struct ibmvnic_multicast_ctrl multicast_ctrl;
 718         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 719         struct ibmvnic_get_vpd_size get_vpd_size;
 720         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 721         struct ibmvnic_get_vpd get_vpd;
 722         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 723         struct ibmvnic_acl_change_indication acl_change_indication;
 724         struct ibmvnic_acl_query acl_query;
 725         struct ibmvnic_generic_crq acl_query_rsp;
 726         struct ibmvnic_tune tune;
 727         struct ibmvnic_generic_crq tune_rsp;
 728         struct ibmvnic_request_map request_map;
 729         struct ibmvnic_request_map_rsp request_map_rsp;
 730         struct ibmvnic_request_unmap request_unmap;
 731         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 732         struct ibmvnic_query_map query_map;
 733         struct ibmvnic_query_map_rsp query_map_rsp;
 734 };
 735
 736 enum ibmvnic_rc_codes {
 737         SUCCESS = 0,
 738         PARTIALSUCCESS = 1,
 739         PERMISSION = 2,
 740         NOMEMORY = 3,
 741         PARAMETER = 4,
 742         UNKNOWNCOMMAND = 5,
 743         ABORTED = 6,
 744         INVALIDSTATE = 7,
 745         INVALIDIOBA = 8,
 746         INVALIDLENGTH = 9,
 747         UNSUPPORTEDOPTION = 10,
 748 };
 749
 750 enum ibmvnic_capabilities {
 751         MIN_TX_QUEUES = 1,
 752         MIN_RX_QUEUES = 2,
 753         MIN_RX_ADD_QUEUES = 3,
 754         MAX_TX_QUEUES = 4,
 755         MAX_RX_QUEUES = 5,
 756         MAX_RX_ADD_QUEUES = 6,
 757         REQ_TX_QUEUES = 7,
 758         REQ_RX_QUEUES = 8,
 759         REQ_RX_ADD_QUEUES = 9,
 760         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 761         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 762         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 763         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 764         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 765         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 766         TCP_IP_OFFLOAD = 16,
 767         PROMISC_REQUESTED = 17,
 768         PROMISC_SUPPORTED = 18,
 769         MIN_MTU = 19,
 770         MAX_MTU = 20,
 771         REQ_MTU = 21,
 772         MAX_MULTICAST_FILTERS = 22,
 773         VLAN_HEADER_INSERTION = 23,
 774         RX_VLAN_HEADER_INSERTION = 24,
 775         MAX_TX_SG_ENTRIES = 25,
 776         RX_SG_SUPPORTED = 26,
 777         RX_SG_REQUESTED = 27,
 778         OPT_TX_COMP_SUB_QUEUES = 28,
 779         OPT_RX_COMP_QUEUES = 29,
 780         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 781         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 782         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 783         TX_RX_DESC_REQ = 33,
 784 };
 785
 786 enum ibmvnic_error_cause {
 787         ADAPTER_PROBLEM = 0,
 788         BUS_PROBLEM = 1,
 789         FW_PROBLEM = 2,
 790         DD_PROBLEM = 3,
 791         EEH_RECOVERY = 4,
 792         FW_UPDATED = 5,
 793         LOW_MEMORY = 6,
 794 };
 795
 796 enum ibmvnic_commands {
 797         VERSION_EXCHANGE = 0x01,
 798         VERSION_EXCHANGE_RSP = 0x81,
 799         QUERY_CAPABILITY = 0x02,
 800         QUERY_CAPABILITY_RSP = 0x82,
 801         REQUEST_CAPABILITY = 0x03,
 802         REQUEST_CAPABILITY_RSP = 0x83,
 803         LOGIN = 0x04,
 804         LOGIN_RSP = 0x84,
 805         QUERY_PHYS_PARMS = 0x05,
 806         QUERY_PHYS_PARMS_RSP = 0x85,
 807         QUERY_PHYS_CAPABILITIES = 0x06,
 808         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 809         SET_PHYS_PARMS = 0x07,
 810         SET_PHYS_PARMS_RSP = 0x87,
 811         ERROR_INDICATION = 0x08,
 812         REQUEST_ERROR_INFO = 0x09,
 813         REQUEST_ERROR_RSP = 0x89,
 814         LOGICAL_LINK_STATE = 0x0C,
 815         LOGICAL_LINK_STATE_RSP = 0x8C,
 816         REQUEST_STATISTICS = 0x0D,
 817         REQUEST_STATISTICS_RSP = 0x8D,
 818         COLLECT_FW_TRACE = 0x11,
 819         COLLECT_FW_TRACE_RSP = 0x91,
 820         LINK_STATE_INDICATION = 0x12,
 821         CHANGE_MAC_ADDR = 0x13,
 822         CHANGE_MAC_ADDR_RSP = 0x93,
 823         MULTICAST_CTRL = 0x14,
 824         MULTICAST_CTRL_RSP = 0x94,
 825         GET_VPD_SIZE = 0x15,
 826         GET_VPD_SIZE_RSP = 0x95,
 827         GET_VPD = 0x16,
 828         GET_VPD_RSP = 0x96,
 829         TUNE = 0x17,
 830         TUNE_RSP = 0x97,
 831         QUERY_IP_OFFLOAD = 0x18,
 832         QUERY_IP_OFFLOAD_RSP = 0x98,
 833         CONTROL_IP_OFFLOAD = 0x19,
 834         CONTROL_IP_OFFLOAD_RSP = 0x99,
 835         ACL_CHANGE_INDICATION = 0x1A,
 836         ACL_QUERY = 0x1B,
 837         ACL_QUERY_RSP = 0x9B,
 838         QUERY_MAP = 0x1D,
 839         QUERY_MAP_RSP = 0x9D,
 840         REQUEST_MAP = 0x1E,
 841         REQUEST_MAP_RSP = 0x9E,
 842         REQUEST_UNMAP = 0x1F,
 843         REQUEST_UNMAP_RSP = 0x9F,
 844         VLAN_CTRL = 0x20,
 845         VLAN_CTRL_RSP = 0xA0,
 846 };
 847
 848 enum ibmvnic_crq_type {
 849         IBMVNIC_CRQ_CMD                 = 0x80,
 850         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 851         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 852         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 853         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 854 };
 855
 856 enum ibmvfc_crq_format {
 857         IBMVNIC_CRQ_INIT                 = 0x01,
 858         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 859         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 860         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 861 };
 862
 863 struct ibmvnic_crq_queue {
 864         union ibmvnic_crq *msgs;
 865         int size, cur;
 866         dma_addr_t msg_token;
 867         spinlock_t lock;
 868 };
 869
 870 union sub_crq {
 871         struct ibmvnic_generic_scrq generic;
 872         struct ibmvnic_tx_comp_desc tx_comp;
 873         struct ibmvnic_tx_desc v1;
 874         struct ibmvnic_hdr_desc hdr;
 875         struct ibmvnic_hdr_ext_desc hdr_ext;
 876         struct ibmvnic_sge_desc sge;
 877         struct ibmvnic_rx_comp_desc rx_comp;
 878         struct ibmvnic_rx_buff_add_desc rx_add;
 879 };
 880
 881 struct ibmvnic_sub_crq_queue {
 882         union sub_crq *msgs;
 883         int size, cur;
 884         dma_addr_t msg_token;
 885         unsigned long crq_num;
 886         unsigned long hw_irq;
 887         unsigned int irq;
 888         unsigned int pool_index;
 889         int scrq_num;
 890         spinlock_t lock;
 891         struct sk_buff *rx_skb_top;
 892         struct ibmvnic_adapter *adapter;
 893         atomic_t used;
 894 };
 895
 896 struct ibmvnic_long_term_buff {
 897         unsigned char *buff;
 898         dma_addr_t addr;
 899         u64 size;
 900         u8 map_id;
 901 };
 902
 903 struct ibmvnic_tx_buff {
 904         struct sk_buff *skb;
 905         dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
 906         unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
 907         int index;
 908         int pool_index;
 909         bool last_frag;
 910         union sub_crq indir_arr[6];
 911         u8 hdr_data[140];
 912         dma_addr_t indir_dma;
 913         int num_entries;
 914 };
 915
 916 struct ibmvnic_tx_pool {
 917         struct ibmvnic_tx_buff *tx_buff;
 918         int *free_map;
 919         int consumer_index;
 920         int producer_index;
 921         struct ibmvnic_long_term_buff long_term_buff;
 922         int num_buffers;
 923         int buf_size;
 924 };
 925
 926 struct ibmvnic_rx_buff {
 927         struct sk_buff *skb;
 928         dma_addr_t dma;
 929         unsigned char *data;
 930         int size;
 931         int pool_index;
 932 };
 933
 934 struct ibmvnic_rx_pool {
 935         struct ibmvnic_rx_buff *rx_buff;
 936         int size;
 937         int index;
 938         int buff_size;
 939         atomic_t available;
 940         int *free_map;
 941         int next_free;
 942         int next_alloc;
 943         int active;
 944         struct ibmvnic_long_term_buff long_term_buff;
 945 };
 946
 947 struct ibmvnic_error_buff {
 948         char *buff;
 949         dma_addr_t dma;
 950         int len;
 951         struct list_head list;
 952         __be32 error_id;
 953 };
 954
 955 struct ibmvnic_vpd {
 956         unsigned char *buff;
 957         dma_addr_t dma_addr;
 958         u64 len;
 959 };
 960
 961 enum vnic_state {VNIC_PROBING = 1,
 962                  VNIC_PROBED,
 963                  VNIC_OPENING,
 964                  VNIC_OPEN,
 965                  VNIC_CLOSING,
 966                  VNIC_CLOSED,
 967                  VNIC_REMOVING,
 968                  VNIC_REMOVED};
 969
 970 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 971                            VNIC_RESET_MOBILITY,
 972                            VNIC_RESET_FATAL,
 973                            VNIC_RESET_NON_FATAL,
 974                            VNIC_RESET_TIMEOUT,
 975                            VNIC_RESET_CHANGE_PARAM};
 976
 977 struct ibmvnic_rwi {
 978         enum ibmvnic_reset_reason reset_reason;
 979         struct list_head list;
 980 };
 981
 982 struct ibmvnic_tunables {
 983         u64 rx_queues;
 984         u64 tx_queues;
 985         u64 rx_entries;
 986         u64 tx_entries;
 987         u64 mtu;
 988         struct sockaddr mac;
 989 };
 990
 991 struct ibmvnic_adapter {
 992         struct vio_dev *vdev;
 993         struct net_device *netdev;
 994         struct ibmvnic_crq_queue crq;
 995         u8 mac_addr[ETH_ALEN];
 996         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 997         dma_addr_t ip_offload_tok;
 998         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 999         dma_addr_t ip_offload_ctrl_tok;
1000         u32 msg_enable;
1001
1002         /* Vital Product Data (VPD) */
1003         struct ibmvnic_vpd *vpd;
1004         char fw_version[32];
1005
1006         /* Statistics */
1007         struct ibmvnic_statistics stats;
1008         dma_addr_t stats_token;
1009         struct completion stats_done;
1010         spinlock_t stats_lock;
1011         int replenish_no_mem;
1012         int replenish_add_buff_success;
1013         int replenish_add_buff_failure;
1014         int replenish_task_cycles;
1015         int tx_send_failed;
1016         int tx_map_failed;
1017
1018         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
1019         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
1020
1021         int phys_link_state;
1022         int logical_link_state;
1023
1024         /* login data */
1025         struct ibmvnic_login_buffer *login_buf;
1026         dma_addr_t login_buf_token;
1027         int login_buf_sz;
1028
1029         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1030         dma_addr_t login_rsp_buf_token;
1031         int login_rsp_buf_sz;
1032
1033         atomic_t running_cap_crqs;
1034         bool wait_capability;
1035
1036         struct ibmvnic_sub_crq_queue **tx_scrq;
1037         struct ibmvnic_sub_crq_queue **rx_scrq;
1038         bool renegotiate;
1039
1040         /* rx structs */
1041         struct napi_struct *napi;
1042         struct ibmvnic_rx_pool *rx_pool;
1043         u64 promisc;
1044
1045         struct ibmvnic_tx_pool *tx_pool;
1046         struct ibmvnic_tx_pool *tso_pool;
1047         struct completion init_done;
1048         int init_done_rc;
1049
1050         struct list_head errors;
1051         spinlock_t error_list_lock;
1052
1053         struct completion fw_done;
1054         int fw_done_rc;
1055
1056         struct completion reset_done;
1057         int reset_done_rc;
1058         bool wait_for_reset;
1059
1060         /* partner capabilities */
1061         u64 min_tx_queues;
1062         u64 min_rx_queues;
1063         u64 min_rx_add_queues;
1064         u64 max_tx_queues;
1065         u64 max_rx_queues;
1066         u64 max_rx_add_queues;
1067         u64 req_tx_queues;
1068         u64 req_rx_queues;
1069         u64 req_rx_add_queues;
1070         u64 min_tx_entries_per_subcrq;
1071         u64 min_rx_add_entries_per_subcrq;
1072         u64 max_tx_entries_per_subcrq;
1073         u64 max_rx_add_entries_per_subcrq;
1074         u64 req_tx_entries_per_subcrq;
1075         u64 req_rx_add_entries_per_subcrq;
1076         u64 tcp_ip_offload;
1077         u64 promisc_requested;
1078         u64 promisc_supported;
1079         u64 min_mtu;
1080         u64 max_mtu;
1081         u64 req_mtu;
1082         u64 max_multicast_filters;
1083         u64 vlan_header_insertion;
1084         u64 rx_vlan_header_insertion;
1085         u64 max_tx_sg_entries;
1086         u64 rx_sg_supported;
1087         u64 rx_sg_requested;
1088         u64 opt_tx_comp_sub_queues;
1089         u64 opt_rx_comp_queues;
1090         u64 opt_rx_bufadd_q_per_rx_comp_q;
1091         u64 opt_tx_entries_per_subcrq;
1092         u64 opt_rxba_entries_per_subcrq;
1093         __be64 tx_rx_desc_req;
1094         u8 map_id;
1095         u32 num_active_rx_scrqs;
1096         u32 num_active_rx_pools;
1097         u32 num_active_rx_napi;
1098         u32 num_active_tx_scrqs;
1099         u32 num_active_tx_pools;
1100
1101         struct tasklet_struct tasklet;
1102         enum vnic_state state;
1103         enum ibmvnic_reset_reason reset_reason;
1104         struct mutex reset_lock, rwi_lock;
1105         struct list_head rwi_list;
1106         struct work_struct ibmvnic_reset;
1107         bool resetting;
1108         bool napi_enabled, from_passive_init;
1109
1110         bool mac_change_pending;
1111
1112         struct ibmvnic_tunables desired;
1113         struct ibmvnic_tunables fallback;
1114 };