drivers/net/ethernet/ibm/ibmvnic.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /**************************************************************************/
   3 /*                                                                        */
   4 /*  IBM System i and System p Virtual NIC Device Driver                   */
   5 /*  Copyright (C) 2014 IBM Corp.                                          */
   6 /*  Santiago Leon (santi_leon@yahoo.com)                                  */
   7 /*  Thomas Falcon (tlfalcon@linux.vnet.ibm.com)                           */
   8 /*  John Allen (jallen@linux.vnet.ibm.com)                                */
   9 /*                                                                        */
  10 /*                                                                        */
  11 /* This module contains the implementation of a virtual ethernet device   */
  12 /* for use with IBM i/pSeries LPAR Linux.  It utilizes the logical LAN    */
  13 /* option of the RS/6000 Platform Architecture to interface with virtual */
  14 /* ethernet NICs that are presented to the partition by the hypervisor.   */
  15 /*                                                                        */
  16 /**************************************************************************/
  17
  18 #define IBMVNIC_NAME            "ibmvnic"
  19 #define IBMVNIC_DRIVER_VERSION  "1.0.1"
  20 #define IBMVNIC_INVALID_MAP     -1
  21 #define IBMVNIC_STATS_TIMEOUT   1
  22 #define IBMVNIC_INIT_FAILED     2
  23 #define IBMVNIC_OPEN_FAILED     3
  24
  25 /* basic structures plus 100 2k buffers */
  26 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT  610305
  27
  28 /* Initial module_parameters */
  29 #define IBMVNIC_RX_WEIGHT               16
  30 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
  31 #define IBMVNIC_BUFFS_PER_POOL  100
  32 #define IBMVNIC_MAX_QUEUES      16
  33 #define IBMVNIC_MAX_QUEUE_SZ   4096
  34
  35 #define IBMVNIC_TSO_BUF_SZ      65536
  36 #define IBMVNIC_TSO_BUFS        64
  37 #define IBMVNIC_TSO_POOL_MASK   0x80000000
  38
  39 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
  40 #define IBMVNIC_BUFFER_HLEN 500
  41
  42 #define IBMVNIC_RESET_DELAY 100
  43
  44 struct ibmvnic_login_buffer {
  45         __be32 len;
  46         __be32 version;
  47 #define INITIAL_VERSION_LB 1
  48         __be32 num_txcomp_subcrqs;
  49         __be32 off_txcomp_subcrqs;
  50         __be32 num_rxcomp_subcrqs;
  51         __be32 off_rxcomp_subcrqs;
  52         __be32 login_rsp_ioba;
  53         __be32 login_rsp_len;
  54         __be32 client_data_offset;
  55         __be32 client_data_len;
  56 } __packed __aligned(8);
  57
  58 struct ibmvnic_login_rsp_buffer {
  59         __be32 len;
  60         __be32 version;
  61 #define INITIAL_VERSION_LRB 1
  62         __be32 num_txsubm_subcrqs;
  63         __be32 off_txsubm_subcrqs;
  64         __be32 num_rxadd_subcrqs;
  65         __be32 off_rxadd_subcrqs;
  66         __be32 off_rxadd_buff_size;
  67         __be32 num_supp_tx_desc;
  68         __be32 off_supp_tx_desc;
  69 } __packed __aligned(8);
  70
  71 struct ibmvnic_query_ip_offload_buffer {
  72         __be32 len;
  73         __be32 version;
  74 #define INITIAL_VERSION_IOB 1
  75         u8 ipv4_chksum;
  76         u8 ipv6_chksum;
  77         u8 tcp_ipv4_chksum;
  78         u8 tcp_ipv6_chksum;
  79         u8 udp_ipv4_chksum;
  80         u8 udp_ipv6_chksum;
  81         u8 large_tx_ipv4;
  82         u8 large_tx_ipv6;
  83         u8 large_rx_ipv4;
  84         u8 large_rx_ipv6;
  85         u8 reserved1[14];
  86         __be16 max_ipv4_header_size;
  87         __be16 max_ipv6_header_size;
  88         __be16 max_tcp_header_size;
  89         __be16 max_udp_header_size;
  90         __be32 max_large_tx_size;
  91         __be32 max_large_rx_size;
  92         u8 reserved2[16];
  93         u8 ipv6_extension_header;
  94 #define IPV6_EH_NOT_SUPPORTED   0x00
  95 #define IPV6_EH_SUPPORTED_LIM   0x01
  96 #define IPV6_EH_SUPPORTED       0xFF
  97         u8 tcp_pseudosum_req;
  98 #define TCP_PS_NOT_REQUIRED     0x00
  99 #define TCP_PS_REQUIRED         0x01
 100         u8 reserved3[30];
 101         __be16 num_ipv6_ext_headers;
 102         __be32 off_ipv6_ext_headers;
 103         u8 reserved4[154];
 104 } __packed __aligned(8);
 105
 106 struct ibmvnic_control_ip_offload_buffer {
 107         __be32 len;
 108         __be32 version;
 109 #define INITIAL_VERSION_IOB 1
 110         u8 ipv4_chksum;
 111         u8 ipv6_chksum;
 112         u8 tcp_ipv4_chksum;
 113         u8 tcp_ipv6_chksum;
 114         u8 udp_ipv4_chksum;
 115         u8 udp_ipv6_chksum;
 116         u8 large_tx_ipv4;
 117         u8 large_tx_ipv6;
 118         u8 bad_packet_rx;
 119         u8 large_rx_ipv4;
 120         u8 large_rx_ipv6;
 121         u8 reserved4[111];
 122 } __packed __aligned(8);
 123
 124 struct ibmvnic_fw_component {
 125         u8 name[48];
 126         __be32 trace_buff_size;
 127         u8 correlator;
 128         u8 trace_level;
 129         u8 parent_correlator;
 130         u8 error_check_level;
 131         u8 trace_on;
 132         u8 reserved[7];
 133         u8 description[192];
 134 } __packed __aligned(8);
 135
 136 struct ibmvnic_fw_trace_entry {
 137         __be32 trace_id;
 138         u8 num_valid_data;
 139         u8 reserved[3];
 140         __be64 pmc_registers;
 141         __be64 timebase;
 142         __be64 trace_data[5];
 143 } __packed __aligned(8);
 144
 145 struct ibmvnic_statistics {
 146         __be32 version;
 147         __be32 promiscuous;
 148         __be64 rx_packets;
 149         __be64 rx_bytes;
 150         __be64 tx_packets;
 151         __be64 tx_bytes;
 152         __be64 ucast_tx_packets;
 153         __be64 ucast_rx_packets;
 154         __be64 mcast_tx_packets;
 155         __be64 mcast_rx_packets;
 156         __be64 bcast_tx_packets;
 157         __be64 bcast_rx_packets;
 158         __be64 align_errors;
 159         __be64 fcs_errors;
 160         __be64 single_collision_frames;
 161         __be64 multi_collision_frames;
 162         __be64 sqe_test_errors;
 163         __be64 deferred_tx;
 164         __be64 late_collisions;
 165         __be64 excess_collisions;
 166         __be64 internal_mac_tx_errors;
 167         __be64 carrier_sense;
 168         __be64 too_long_frames;
 169         __be64 internal_mac_rx_errors;
 170         u8 reserved[72];
 171 } __packed __aligned(8);
 172
 173 #define NUM_TX_STATS 3
 174 struct ibmvnic_tx_queue_stats {
 175         u64 packets;
 176         u64 bytes;
 177         u64 dropped_packets;
 178 };
 179
 180 #define NUM_RX_STATS 3
 181 struct ibmvnic_rx_queue_stats {
 182         u64 packets;
 183         u64 bytes;
 184         u64 interrupts;
 185 };
 186
 187 struct ibmvnic_acl_buffer {
 188         __be32 len;
 189         __be32 version;
 190 #define INITIAL_VERSION_IOB 1
 191         u8 mac_acls_restrict;
 192         u8 vlan_acls_restrict;
 193         u8 reserved1[22];
 194         __be32 num_mac_addrs;
 195         __be32 offset_mac_addrs;
 196         __be32 num_vlan_ids;
 197         __be32 offset_vlan_ids;
 198         u8 reserved2[80];
 199 } __packed __aligned(8);
 200
 201 /* descriptors have been changed, how should this be defined?  1? 4? */
 202
 203 #define IBMVNIC_TX_DESC_VERSIONS 3
 204
 205 /* is this still needed? */
 206 struct ibmvnic_tx_comp_desc {
 207         u8 first;
 208         u8 num_comps;
 209         __be16 rcs[5];
 210         __be32 correlators[5];
 211 } __packed __aligned(8);
 212
 213 /* some flags that included in v0 descriptor, which is gone
 214  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
 215  * and only in some offload_flags variable that doesn't seem
 216  * to be used anywhere, can probably be removed?
 217  */
 218
 219 #define IBMVNIC_TCP_CHKSUM              0x20
 220 #define IBMVNIC_UDP_CHKSUM              0x08
 221
 222 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
 223
 224 struct ibmvnic_tx_desc {
 225         u8 first;
 226         u8 type;
 227
 228 #define IBMVNIC_TX_DESC 0x10
 229         u8 n_crq_elem;
 230         u8 n_sge;
 231         u8 flags1;
 232 #define IBMVNIC_TX_COMP_NEEDED          0x80
 233 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 234 #define IBMVNIC_TX_LSO                  0x20
 235 #define IBMVNIC_TX_PROT_TCP             0x10
 236 #define IBMVNIC_TX_PROT_UDP             0x08
 237 #define IBMVNIC_TX_PROT_IPV4            0x04
 238 #define IBMVNIC_TX_PROT_IPV6            0x02
 239 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 240         u8 flags2;
 241 #define IBMVNIC_TX_VLAN_INSERT          0x80
 242         __be16 mss;
 243         u8 reserved[4];
 244         __be32 correlator;
 245         __be16 vlan_id;
 246         __be16 dma_reg;
 247         __be32 sge_len;
 248         __be64 ioba;
 249 } __packed __aligned(8);
 250
 251 struct ibmvnic_hdr_desc {
 252         u8 first;
 253         u8 type;
 254 #define IBMVNIC_HDR_DESC                0x11
 255         u8 len;
 256         u8 l2_len;
 257         __be16 l3_len;
 258         u8 l4_len;
 259         u8 flag;
 260         u8 data[24];
 261 } __packed __aligned(8);
 262
 263 struct ibmvnic_hdr_ext_desc {
 264         u8 first;
 265         u8 type;
 266 #define IBMVNIC_HDR_EXT_DESC            0x12
 267         u8 len;
 268         u8 data[29];
 269 } __packed __aligned(8);
 270
 271 struct ibmvnic_sge_desc {
 272         u8 first;
 273         u8 type;
 274 #define IBMVNIC_SGE_DESC                0x30
 275         __be16 sge1_dma_reg;
 276         __be32 sge1_len;
 277         __be64 sge1_ioba;
 278         __be16 reserved;
 279         __be16 sge2_dma_reg;
 280         __be32 sge2_len;
 281         __be64 sge2_ioba;
 282 } __packed __aligned(8);
 283
 284 struct ibmvnic_rx_comp_desc {
 285         u8 first;
 286         u8 flags;
 287 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 288 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 289 #define IBMVNIC_END_FRAME                       0x20
 290 #define IBMVNIC_EXACT_MC                        0x10
 291 #define IBMVNIC_VLAN_STRIPPED                   0x08
 292         __be16 off_frame_data;
 293         __be32 len;
 294         __be64 correlator;
 295         __be16 vlan_tci;
 296         __be16 rc;
 297         u8 reserved[12];
 298 } __packed __aligned(8);
 299
 300 struct ibmvnic_generic_scrq {
 301         u8 first;
 302         u8 reserved[31];
 303 } __packed __aligned(8);
 304
 305 struct ibmvnic_rx_buff_add_desc {
 306         u8 first;
 307         u8 reserved[7];
 308         __be64 correlator;
 309         __be32 ioba;
 310         u8 map_id;
 311         __be32 len:24;
 312         u8 reserved2[8];
 313 } __packed __aligned(8);
 314
 315 struct ibmvnic_rc {
 316         u8 code; /* one of enum ibmvnic_rc_codes */
 317         u8 detailed_data[3];
 318 } __packed __aligned(4);
 319
 320 struct ibmvnic_generic_crq {
 321         u8 first;
 322         u8 cmd;
 323         u8 params[10];
 324         struct ibmvnic_rc rc;
 325 } __packed __aligned(8);
 326
 327 struct ibmvnic_version_exchange {
 328         u8 first;
 329         u8 cmd;
 330         __be16 version;
 331 #define IBMVNIC_INITIAL_VERSION 1
 332         u8 reserved[8];
 333         struct ibmvnic_rc rc;
 334 } __packed __aligned(8);
 335
 336 struct ibmvnic_capability {
 337         u8 first;
 338         u8 cmd;
 339         __be16 capability; /* one of ibmvnic_capabilities */
 340         __be64 number;
 341         struct ibmvnic_rc rc;
 342 } __packed __aligned(8);
 343
 344 struct ibmvnic_login {
 345         u8 first;
 346         u8 cmd;
 347         u8 reserved[6];
 348         __be32 ioba;
 349         __be32 len;
 350 } __packed __aligned(8);
 351
 352 struct ibmvnic_phys_parms {
 353         u8 first;
 354         u8 cmd;
 355         u8 flags1;
 356 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 357 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 358 #define IBMVNIC_PROMISC         0x20
 359 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 360 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 361 #define IBMVNIC_FULL_DUPLEX     0x04
 362 #define IBMVNIC_HALF_DUPLEX     0x02
 363 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 364         u8 flags2;
 365 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 366         __be32 speed;
 367 #define IBMVNIC_AUTONEG         0x80000000
 368 #define IBMVNIC_10MBPS          0x40000000
 369 #define IBMVNIC_100MBPS         0x20000000
 370 #define IBMVNIC_1GBPS           0x10000000
 371 #define IBMVNIC_10GBPS          0x08000000
 372 #define IBMVNIC_40GBPS          0x04000000
 373 #define IBMVNIC_100GBPS         0x02000000
 374 #define IBMVNIC_25GBPS          0x01000000
 375 #define IBMVNIC_50GBPS          0x00800000
 376 #define IBMVNIC_200GBPS         0x00400000
 377         __be32 mtu;
 378         struct ibmvnic_rc rc;
 379 } __packed __aligned(8);
 380
 381 struct ibmvnic_logical_link_state {
 382         u8 first;
 383         u8 cmd;
 384         u8 link_state;
 385 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 386 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 387 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 388         u8 reserved[9];
 389         struct ibmvnic_rc rc;
 390 } __packed __aligned(8);
 391
 392 struct ibmvnic_query_ip_offload {
 393         u8 first;
 394         u8 cmd;
 395         u8 reserved[2];
 396         __be32 len;
 397         __be32 ioba;
 398         struct ibmvnic_rc rc;
 399 } __packed __aligned(8);
 400
 401 struct ibmvnic_control_ip_offload {
 402         u8 first;
 403         u8 cmd;
 404         u8 reserved[2];
 405         __be32 ioba;
 406         __be32 len;
 407         struct ibmvnic_rc rc;
 408 } __packed __aligned(8);
 409
 410 struct ibmvnic_request_dump_size {
 411         u8 first;
 412         u8 cmd;
 413         u8 reserved[6];
 414         __be32 len;
 415         struct ibmvnic_rc rc;
 416 } __packed __aligned(8);
 417
 418 struct ibmvnic_request_dump {
 419         u8 first;
 420         u8 cmd;
 421         u8 reserved1[2];
 422         __be32 ioba;
 423         __be32 len;
 424         u8 reserved2[4];
 425 } __packed __aligned(8);
 426
 427 struct ibmvnic_request_dump_rsp {
 428         u8 first;
 429         u8 cmd;
 430         u8 reserved[6];
 431         __be32 dumped_len;
 432         struct ibmvnic_rc rc;
 433 } __packed __aligned(8);
 434
 435 struct ibmvnic_request_ras_comp_num {
 436         u8 first;
 437         u8 cmd;
 438         u8 reserved1[2];
 439         __be32 num_components;
 440         u8 reserved2[4];
 441         struct ibmvnic_rc rc;
 442 } __packed __aligned(8);
 443
 444 struct ibmvnic_request_ras_comps {
 445         u8 first;
 446         u8 cmd;
 447         u8 reserved[2];
 448         __be32 ioba;
 449         __be32 len;
 450         struct ibmvnic_rc rc;
 451 } __packed __aligned(8);
 452
 453 struct ibmvnic_control_ras {
 454         u8 first;
 455         u8 cmd;
 456         u8 correlator;
 457         u8 level;
 458         u8 op;
 459 #define IBMVNIC_TRACE_LEVEL     1
 460 #define IBMVNIC_ERROR_LEVEL     2
 461 #define IBMVNIC_TRACE_PAUSE     3
 462 #define IBMVNIC_TRACE_RESUME    4
 463 #define IBMVNIC_TRACE_ON                5
 464 #define IBMVNIC_TRACE_OFF               6
 465 #define IBMVNIC_CHG_TRACE_BUFF_SZ       7
 466         u8 trace_buff_sz[3];
 467         u8 reserved[4];
 468         struct ibmvnic_rc rc;
 469 } __packed __aligned(8);
 470
 471 struct ibmvnic_collect_fw_trace {
 472         u8 first;
 473         u8 cmd;
 474         u8 correlator;
 475         u8 reserved;
 476         __be32 ioba;
 477         __be32 len;
 478         struct ibmvnic_rc rc;
 479 } __packed __aligned(8);
 480
 481 struct ibmvnic_request_statistics {
 482         u8 first;
 483         u8 cmd;
 484         u8 flags;
 485 #define IBMVNIC_PHYSICAL_PORT   0x80
 486         u8 reserved1;
 487         __be32 ioba;
 488         __be32 len;
 489         u8 reserved[4];
 490 } __packed __aligned(8);
 491
 492 struct ibmvnic_request_debug_stats {
 493         u8 first;
 494         u8 cmd;
 495         u8 reserved[2];
 496         __be32 ioba;
 497         __be32 len;
 498         struct ibmvnic_rc rc;
 499 } __packed __aligned(8);
 500
 501 struct ibmvnic_error_indication {
 502         u8 first;
 503         u8 cmd;
 504         u8 flags;
 505 #define IBMVNIC_FATAL_ERROR     0x80
 506         u8 reserved1;
 507         __be32 error_id;
 508         __be32 detail_error_sz;
 509         __be16 error_cause;
 510         u8 reserved2[2];
 511 } __packed __aligned(8);
 512
 513 struct ibmvnic_link_state_indication {
 514         u8 first;
 515         u8 cmd;
 516         u8 reserved1[2];
 517         u8 phys_link_state;
 518         u8 logical_link_state;
 519         u8 reserved2[10];
 520 } __packed __aligned(8);
 521
 522 struct ibmvnic_change_mac_addr {
 523         u8 first;
 524         u8 cmd;
 525         u8 mac_addr[6];
 526         u8 reserved[4];
 527         struct ibmvnic_rc rc;
 528 } __packed __aligned(8);
 529
 530 struct ibmvnic_multicast_ctrl {
 531         u8 first;
 532         u8 cmd;
 533         u8 mac_addr[6];
 534         u8 flags;
 535 #define IBMVNIC_ENABLE_MC               0x80
 536 #define IBMVNIC_DISABLE_MC              0x40
 537 #define IBMVNIC_ENABLE_ALL              0x20
 538 #define IBMVNIC_DISABLE_ALL     0x10
 539         u8 reserved1;
 540         __be16 reserved2; /* was num_enabled_mc_addr; */
 541         struct ibmvnic_rc rc;
 542 } __packed __aligned(8);
 543
 544 struct ibmvnic_get_vpd_size {
 545         u8 first;
 546         u8 cmd;
 547         u8 reserved[14];
 548 } __packed __aligned(8);
 549
 550 struct ibmvnic_get_vpd_size_rsp {
 551         u8 first;
 552         u8 cmd;
 553         u8 reserved[2];
 554         __be64 len;
 555         struct ibmvnic_rc rc;
 556 } __packed __aligned(8);
 557
 558 struct ibmvnic_get_vpd {
 559         u8 first;
 560         u8 cmd;
 561         u8 reserved1[2];
 562         __be32 ioba;
 563         __be32 len;
 564         u8 reserved[4];
 565 } __packed __aligned(8);
 566
 567 struct ibmvnic_get_vpd_rsp {
 568         u8 first;
 569         u8 cmd;
 570         u8 reserved[10];
 571         struct ibmvnic_rc rc;
 572 } __packed __aligned(8);
 573
 574 struct ibmvnic_acl_change_indication {
 575         u8 first;
 576         u8 cmd;
 577         __be16 change_type;
 578 #define IBMVNIC_MAC_ACL 0
 579 #define IBMVNIC_VLAN_ACL 1
 580         u8 reserved[12];
 581 } __packed __aligned(8);
 582
 583 struct ibmvnic_acl_query {
 584         u8 first;
 585         u8 cmd;
 586         u8 reserved1[2];
 587         __be32 ioba;
 588         __be32 len;
 589         u8 reserved2[4];
 590 } __packed __aligned(8);
 591
 592 struct ibmvnic_tune {
 593         u8 first;
 594         u8 cmd;
 595         u8 reserved1[2];
 596         __be32 ioba;
 597         __be32 len;
 598         u8 reserved2[4];
 599 } __packed __aligned(8);
 600
 601 struct ibmvnic_request_map {
 602         u8 first;
 603         u8 cmd;
 604         u8 reserved1;
 605         u8 map_id;
 606         __be32 ioba;
 607         __be32 len;
 608         u8 reserved2[4];
 609 } __packed __aligned(8);
 610
 611 struct ibmvnic_request_map_rsp {
 612         u8 first;
 613         u8 cmd;
 614         u8 reserved1;
 615         u8 map_id;
 616         u8 reserved2[8];
 617         struct ibmvnic_rc rc;
 618 } __packed __aligned(8);
 619
 620 struct ibmvnic_request_unmap {
 621         u8 first;
 622         u8 cmd;
 623         u8 reserved1;
 624         u8 map_id;
 625         u8 reserved2[12];
 626 } __packed __aligned(8);
 627
 628 struct ibmvnic_request_unmap_rsp {
 629         u8 first;
 630         u8 cmd;
 631         u8 reserved1;
 632         u8 map_id;
 633         u8 reserved2[8];
 634         struct ibmvnic_rc rc;
 635 } __packed __aligned(8);
 636
 637 struct ibmvnic_query_map {
 638         u8 first;
 639         u8 cmd;
 640         u8 reserved[14];
 641 } __packed __aligned(8);
 642
 643 struct ibmvnic_query_map_rsp {
 644         u8 first;
 645         u8 cmd;
 646         u8 reserved;
 647         u8 page_size;
 648         __be32 tot_pages;
 649         __be32 free_pages;
 650         struct ibmvnic_rc rc;
 651 } __packed __aligned(8);
 652
 653 union ibmvnic_crq {
 654         struct ibmvnic_generic_crq generic;
 655         struct ibmvnic_version_exchange version_exchange;
 656         struct ibmvnic_version_exchange version_exchange_rsp;
 657         struct ibmvnic_capability query_capability;
 658         struct ibmvnic_capability query_capability_rsp;
 659         struct ibmvnic_capability request_capability;
 660         struct ibmvnic_capability request_capability_rsp;
 661         struct ibmvnic_login login;
 662         struct ibmvnic_generic_crq login_rsp;
 663         struct ibmvnic_phys_parms query_phys_parms;
 664         struct ibmvnic_phys_parms query_phys_parms_rsp;
 665         struct ibmvnic_phys_parms query_phys_capabilities;
 666         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 667         struct ibmvnic_phys_parms set_phys_parms;
 668         struct ibmvnic_phys_parms set_phys_parms_rsp;
 669         struct ibmvnic_logical_link_state logical_link_state;
 670         struct ibmvnic_logical_link_state logical_link_state_rsp;
 671         struct ibmvnic_query_ip_offload query_ip_offload;
 672         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 673         struct ibmvnic_control_ip_offload control_ip_offload;
 674         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 675         struct ibmvnic_request_dump_size request_dump_size;
 676         struct ibmvnic_request_dump_size request_dump_size_rsp;
 677         struct ibmvnic_request_dump request_dump;
 678         struct ibmvnic_request_dump_rsp request_dump_rsp;
 679         struct ibmvnic_request_ras_comp_num request_ras_comp_num;
 680         struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
 681         struct ibmvnic_request_ras_comps request_ras_comps;
 682         struct ibmvnic_request_ras_comps request_ras_comps_rsp;
 683         struct ibmvnic_control_ras control_ras;
 684         struct ibmvnic_control_ras control_ras_rsp;
 685         struct ibmvnic_collect_fw_trace collect_fw_trace;
 686         struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
 687         struct ibmvnic_request_statistics request_statistics;
 688         struct ibmvnic_generic_crq request_statistics_rsp;
 689         struct ibmvnic_request_debug_stats request_debug_stats;
 690         struct ibmvnic_request_debug_stats request_debug_stats_rsp;
 691         struct ibmvnic_error_indication error_indication;
 692         struct ibmvnic_link_state_indication link_state_indication;
 693         struct ibmvnic_change_mac_addr change_mac_addr;
 694         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 695         struct ibmvnic_multicast_ctrl multicast_ctrl;
 696         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 697         struct ibmvnic_get_vpd_size get_vpd_size;
 698         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 699         struct ibmvnic_get_vpd get_vpd;
 700         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 701         struct ibmvnic_acl_change_indication acl_change_indication;
 702         struct ibmvnic_acl_query acl_query;
 703         struct ibmvnic_generic_crq acl_query_rsp;
 704         struct ibmvnic_tune tune;
 705         struct ibmvnic_generic_crq tune_rsp;
 706         struct ibmvnic_request_map request_map;
 707         struct ibmvnic_request_map_rsp request_map_rsp;
 708         struct ibmvnic_request_unmap request_unmap;
 709         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 710         struct ibmvnic_query_map query_map;
 711         struct ibmvnic_query_map_rsp query_map_rsp;
 712 };
 713
 714 enum ibmvnic_rc_codes {
 715         SUCCESS = 0,
 716         PARTIALSUCCESS = 1,
 717         PERMISSION = 2,
 718         NOMEMORY = 3,
 719         PARAMETER = 4,
 720         UNKNOWNCOMMAND = 5,
 721         ABORTED = 6,
 722         INVALIDSTATE = 7,
 723         INVALIDIOBA = 8,
 724         INVALIDLENGTH = 9,
 725         UNSUPPORTEDOPTION = 10,
 726 };
 727
 728 enum ibmvnic_capabilities {
 729         MIN_TX_QUEUES = 1,
 730         MIN_RX_QUEUES = 2,
 731         MIN_RX_ADD_QUEUES = 3,
 732         MAX_TX_QUEUES = 4,
 733         MAX_RX_QUEUES = 5,
 734         MAX_RX_ADD_QUEUES = 6,
 735         REQ_TX_QUEUES = 7,
 736         REQ_RX_QUEUES = 8,
 737         REQ_RX_ADD_QUEUES = 9,
 738         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 739         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 740         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 741         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 742         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 743         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 744         TCP_IP_OFFLOAD = 16,
 745         PROMISC_REQUESTED = 17,
 746         PROMISC_SUPPORTED = 18,
 747         MIN_MTU = 19,
 748         MAX_MTU = 20,
 749         REQ_MTU = 21,
 750         MAX_MULTICAST_FILTERS = 22,
 751         VLAN_HEADER_INSERTION = 23,
 752         RX_VLAN_HEADER_INSERTION = 24,
 753         MAX_TX_SG_ENTRIES = 25,
 754         RX_SG_SUPPORTED = 26,
 755         RX_SG_REQUESTED = 27,
 756         OPT_TX_COMP_SUB_QUEUES = 28,
 757         OPT_RX_COMP_QUEUES = 29,
 758         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 759         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 760         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 761         TX_RX_DESC_REQ = 33,
 762 };
 763
 764 enum ibmvnic_error_cause {
 765         ADAPTER_PROBLEM = 0,
 766         BUS_PROBLEM = 1,
 767         FW_PROBLEM = 2,
 768         DD_PROBLEM = 3,
 769         EEH_RECOVERY = 4,
 770         FW_UPDATED = 5,
 771         LOW_MEMORY = 6,
 772 };
 773
 774 enum ibmvnic_commands {
 775         VERSION_EXCHANGE = 0x01,
 776         VERSION_EXCHANGE_RSP = 0x81,
 777         QUERY_CAPABILITY = 0x02,
 778         QUERY_CAPABILITY_RSP = 0x82,
 779         REQUEST_CAPABILITY = 0x03,
 780         REQUEST_CAPABILITY_RSP = 0x83,
 781         LOGIN = 0x04,
 782         LOGIN_RSP = 0x84,
 783         QUERY_PHYS_PARMS = 0x05,
 784         QUERY_PHYS_PARMS_RSP = 0x85,
 785         QUERY_PHYS_CAPABILITIES = 0x06,
 786         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 787         SET_PHYS_PARMS = 0x07,
 788         SET_PHYS_PARMS_RSP = 0x87,
 789         ERROR_INDICATION = 0x08,
 790         LOGICAL_LINK_STATE = 0x0C,
 791         LOGICAL_LINK_STATE_RSP = 0x8C,
 792         REQUEST_STATISTICS = 0x0D,
 793         REQUEST_STATISTICS_RSP = 0x8D,
 794         COLLECT_FW_TRACE = 0x11,
 795         COLLECT_FW_TRACE_RSP = 0x91,
 796         LINK_STATE_INDICATION = 0x12,
 797         CHANGE_MAC_ADDR = 0x13,
 798         CHANGE_MAC_ADDR_RSP = 0x93,
 799         MULTICAST_CTRL = 0x14,
 800         MULTICAST_CTRL_RSP = 0x94,
 801         GET_VPD_SIZE = 0x15,
 802         GET_VPD_SIZE_RSP = 0x95,
 803         GET_VPD = 0x16,
 804         GET_VPD_RSP = 0x96,
 805         TUNE = 0x17,
 806         TUNE_RSP = 0x97,
 807         QUERY_IP_OFFLOAD = 0x18,
 808         QUERY_IP_OFFLOAD_RSP = 0x98,
 809         CONTROL_IP_OFFLOAD = 0x19,
 810         CONTROL_IP_OFFLOAD_RSP = 0x99,
 811         ACL_CHANGE_INDICATION = 0x1A,
 812         ACL_QUERY = 0x1B,
 813         ACL_QUERY_RSP = 0x9B,
 814         QUERY_MAP = 0x1D,
 815         QUERY_MAP_RSP = 0x9D,
 816         REQUEST_MAP = 0x1E,
 817         REQUEST_MAP_RSP = 0x9E,
 818         REQUEST_UNMAP = 0x1F,
 819         REQUEST_UNMAP_RSP = 0x9F,
 820         VLAN_CTRL = 0x20,
 821         VLAN_CTRL_RSP = 0xA0,
 822 };
 823
 824 enum ibmvnic_crq_type {
 825         IBMVNIC_CRQ_CMD                 = 0x80,
 826         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 827         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 828         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 829         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 830 };
 831
 832 enum ibmvfc_crq_format {
 833         IBMVNIC_CRQ_INIT                 = 0x01,
 834         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 835         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 836         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 837 };
 838
 839 struct ibmvnic_crq_queue {
 840         union ibmvnic_crq *msgs;
 841         int size, cur;
 842         dma_addr_t msg_token;
 843         spinlock_t lock;
 844         bool active;
 845         char name[32];
 846 };
 847
 848 union sub_crq {
 849         struct ibmvnic_generic_scrq generic;
 850         struct ibmvnic_tx_comp_desc tx_comp;
 851         struct ibmvnic_tx_desc v1;
 852         struct ibmvnic_hdr_desc hdr;
 853         struct ibmvnic_hdr_ext_desc hdr_ext;
 854         struct ibmvnic_sge_desc sge;
 855         struct ibmvnic_rx_comp_desc rx_comp;
 856         struct ibmvnic_rx_buff_add_desc rx_add;
 857 };
 858
 859 struct ibmvnic_sub_crq_queue {
 860         union sub_crq *msgs;
 861         int size, cur;
 862         dma_addr_t msg_token;
 863         unsigned long crq_num;
 864         unsigned long hw_irq;
 865         unsigned int irq;
 866         unsigned int pool_index;
 867         int scrq_num;
 868         spinlock_t lock;
 869         struct sk_buff *rx_skb_top;
 870         struct ibmvnic_adapter *adapter;
 871         atomic_t used;
 872         char name[32];
 873         u64 handle;
 874 };
 875
 876 struct ibmvnic_long_term_buff {
 877         unsigned char *buff;
 878         dma_addr_t addr;
 879         u64 size;
 880         u8 map_id;
 881 };
 882
 883 struct ibmvnic_tx_buff {
 884         struct sk_buff *skb;
 885         dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
 886         unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
 887         int index;
 888         int pool_index;
 889         bool last_frag;
 890         union sub_crq indir_arr[6];
 891         u8 hdr_data[140];
 892         dma_addr_t indir_dma;
 893         int num_entries;
 894 };
 895
 896 struct ibmvnic_tx_pool {
 897         struct ibmvnic_tx_buff *tx_buff;
 898         int *free_map;
 899         int consumer_index;
 900         int producer_index;
 901         struct ibmvnic_long_term_buff long_term_buff;
 902         int num_buffers;
 903         int buf_size;
 904 };
 905
 906 struct ibmvnic_rx_buff {
 907         struct sk_buff *skb;
 908         dma_addr_t dma;
 909         unsigned char *data;
 910         int size;
 911         int pool_index;
 912 };
 913
 914 struct ibmvnic_rx_pool {
 915         struct ibmvnic_rx_buff *rx_buff;
 916         int size;
 917         int index;
 918         int buff_size;
 919         atomic_t available;
 920         int *free_map;
 921         int next_free;
 922         int next_alloc;
 923         int active;
 924         struct ibmvnic_long_term_buff long_term_buff;
 925 };
 926
 927 struct ibmvnic_vpd {
 928         unsigned char *buff;
 929         dma_addr_t dma_addr;
 930         u64 len;
 931 };
 932
 933 enum vnic_state {VNIC_PROBING = 1,
 934                  VNIC_PROBED,
 935                  VNIC_OPENING,
 936                  VNIC_OPEN,
 937                  VNIC_CLOSING,
 938                  VNIC_CLOSED,
 939                  VNIC_REMOVING,
 940                  VNIC_REMOVED};
 941
 942 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 943                            VNIC_RESET_MOBILITY,
 944                            VNIC_RESET_FATAL,
 945                            VNIC_RESET_NON_FATAL,
 946                            VNIC_RESET_TIMEOUT,
 947                            VNIC_RESET_CHANGE_PARAM};
 948
 949 struct ibmvnic_rwi {
 950         enum ibmvnic_reset_reason reset_reason;
 951         struct list_head list;
 952 };
 953
 954 struct ibmvnic_tunables {
 955         u64 rx_queues;
 956         u64 tx_queues;
 957         u64 rx_entries;
 958         u64 tx_entries;
 959         u64 mtu;
 960 };
 961
 962 struct ibmvnic_adapter {
 963         struct vio_dev *vdev;
 964         struct net_device *netdev;
 965         struct ibmvnic_crq_queue crq;
 966         u8 mac_addr[ETH_ALEN];
 967         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 968         dma_addr_t ip_offload_tok;
 969         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 970         dma_addr_t ip_offload_ctrl_tok;
 971         u32 msg_enable;
 972
 973         /* Vital Product Data (VPD) */
 974         struct ibmvnic_vpd *vpd;
 975         char fw_version[32];
 976
 977         /* Statistics */
 978         struct ibmvnic_statistics stats;
 979         dma_addr_t stats_token;
 980         struct completion stats_done;
 981         spinlock_t stats_lock;
 982         int replenish_no_mem;
 983         int replenish_add_buff_success;
 984         int replenish_add_buff_failure;
 985         int replenish_task_cycles;
 986         int tx_send_failed;
 987         int tx_map_failed;
 988
 989         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
 990         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
 991
 992         int phys_link_state;
 993         int logical_link_state;
 994
 995         u32 speed;
 996         u8 duplex;
 997
 998         /* login data */
 999         struct ibmvnic_login_buffer *login_buf;
1000         dma_addr_t login_buf_token;
1001         int login_buf_sz;
1002
1003         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1004         dma_addr_t login_rsp_buf_token;
1005         int login_rsp_buf_sz;
1006
1007         atomic_t running_cap_crqs;
1008         bool wait_capability;
1009
1010         struct ibmvnic_sub_crq_queue **tx_scrq;
1011         struct ibmvnic_sub_crq_queue **rx_scrq;
1012
1013         /* rx structs */
1014         struct napi_struct *napi;
1015         struct ibmvnic_rx_pool *rx_pool;
1016         u64 promisc;
1017
1018         struct ibmvnic_tx_pool *tx_pool;
1019         struct ibmvnic_tx_pool *tso_pool;
1020         struct completion init_done;
1021         int init_done_rc;
1022
1023         struct completion fw_done;
1024         /* Used for serialization of device commands */
1025         struct mutex fw_lock;
1026         int fw_done_rc;
1027
1028         struct completion reset_done;
1029         int reset_done_rc;
1030         bool wait_for_reset;
1031
1032         /* partner capabilities */
1033         u64 min_tx_queues;
1034         u64 min_rx_queues;
1035         u64 min_rx_add_queues;
1036         u64 max_tx_queues;
1037         u64 max_rx_queues;
1038         u64 max_rx_add_queues;
1039         u64 req_tx_queues;
1040         u64 req_rx_queues;
1041         u64 req_rx_add_queues;
1042         u64 min_tx_entries_per_subcrq;
1043         u64 min_rx_add_entries_per_subcrq;
1044         u64 max_tx_entries_per_subcrq;
1045         u64 max_rx_add_entries_per_subcrq;
1046         u64 req_tx_entries_per_subcrq;
1047         u64 req_rx_add_entries_per_subcrq;
1048         u64 tcp_ip_offload;
1049         u64 promisc_requested;
1050         u64 promisc_supported;
1051         u64 min_mtu;
1052         u64 max_mtu;
1053         u64 req_mtu;
1054         u64 max_multicast_filters;
1055         u64 vlan_header_insertion;
1056         u64 rx_vlan_header_insertion;
1057         u64 max_tx_sg_entries;
1058         u64 rx_sg_supported;
1059         u64 rx_sg_requested;
1060         u64 opt_tx_comp_sub_queues;
1061         u64 opt_rx_comp_queues;
1062         u64 opt_rx_bufadd_q_per_rx_comp_q;
1063         u64 opt_tx_entries_per_subcrq;
1064         u64 opt_rxba_entries_per_subcrq;
1065         __be64 tx_rx_desc_req;
1066         u8 map_id;
1067         u32 num_active_rx_scrqs;
1068         u32 num_active_rx_pools;
1069         u32 num_active_rx_napi;
1070         u32 num_active_tx_scrqs;
1071         u32 num_active_tx_pools;
1072         u32 cur_rx_buf_sz;
1073
1074         struct tasklet_struct tasklet;
1075         enum vnic_state state;
1076         enum ibmvnic_reset_reason reset_reason;
1077         /* when taking both state and rwi locks, take state lock first */
1078         spinlock_t rwi_lock;
1079         struct list_head rwi_list;
1080         struct work_struct ibmvnic_reset;
1081         struct delayed_work ibmvnic_delayed_reset;
1082         unsigned long resetting;
1083         bool napi_enabled, from_passive_init;
1084         bool login_pending;
1085         /* last device reset time */
1086         unsigned long last_reset_time;
1087
1088         bool failover_pending;
1089         bool force_reset_recovery;
1090
1091         struct ibmvnic_tunables desired;
1092         struct ibmvnic_tunables fallback;
1093
1094         /* Used for serialization of state field. When taking both state
1095          * and rwi locks, take state lock first.
1096          */
1097         spinlock_t state_lock;
1098 };