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 ([email protected])                                  */
   7 /*  Thomas Falcon ([email protected])                           */
   8 /*  John Allen ([email protected])                                */
   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 #define IBMVNIC_MAX_IND_DESCS  16
  35 #define IBMVNIC_IND_ARR_SZ      (IBMVNIC_MAX_IND_DESCS * 32)
  36
  37 #define IBMVNIC_TSO_BUF_SZ      65536
  38 #define IBMVNIC_TSO_BUFS        64
  39 #define IBMVNIC_TSO_POOL_MASK   0x80000000
  40
  41 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
  42 #define IBMVNIC_BUFFER_HLEN 500
  43
  44 #define IBMVNIC_RESET_DELAY 100
  45
  46 static const char ibmvnic_priv_flags[][ETH_GSTRING_LEN] = {
  47 #define IBMVNIC_USE_SERVER_MAXES 0x1
  48         "use-server-maxes"
  49 };
  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 struct ibmvnic_tx_desc {
 230         u8 first;
 231         u8 type;
 232
 233 #define IBMVNIC_TX_DESC 0x10
 234         u8 n_crq_elem;
 235         u8 n_sge;
 236         u8 flags1;
 237 #define IBMVNIC_TX_COMP_NEEDED          0x80
 238 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 239 #define IBMVNIC_TX_LSO                  0x20
 240 #define IBMVNIC_TX_PROT_TCP             0x10
 241 #define IBMVNIC_TX_PROT_UDP             0x08
 242 #define IBMVNIC_TX_PROT_IPV4            0x04
 243 #define IBMVNIC_TX_PROT_IPV6            0x02
 244 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 245         u8 flags2;
 246 #define IBMVNIC_TX_VLAN_INSERT          0x80
 247         __be16 mss;
 248         u8 reserved[4];
 249         __be32 correlator;
 250         __be16 vlan_id;
 251         __be16 dma_reg;
 252         __be32 sge_len;
 253         __be64 ioba;
 254 } __packed __aligned(8);
 255
 256 struct ibmvnic_hdr_desc {
 257         u8 first;
 258         u8 type;
 259 #define IBMVNIC_HDR_DESC                0x11
 260         u8 len;
 261         u8 l2_len;
 262         __be16 l3_len;
 263         u8 l4_len;
 264         u8 flag;
 265         u8 data[24];
 266 } __packed __aligned(8);
 267
 268 struct ibmvnic_hdr_ext_desc {
 269         u8 first;
 270         u8 type;
 271 #define IBMVNIC_HDR_EXT_DESC            0x12
 272         u8 len;
 273         u8 data[29];
 274 } __packed __aligned(8);
 275
 276 struct ibmvnic_sge_desc {
 277         u8 first;
 278         u8 type;
 279 #define IBMVNIC_SGE_DESC                0x30
 280         __be16 sge1_dma_reg;
 281         __be32 sge1_len;
 282         __be64 sge1_ioba;
 283         __be16 reserved;
 284         __be16 sge2_dma_reg;
 285         __be32 sge2_len;
 286         __be64 sge2_ioba;
 287 } __packed __aligned(8);
 288
 289 struct ibmvnic_rx_comp_desc {
 290         u8 first;
 291         u8 flags;
 292 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 293 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 294 #define IBMVNIC_END_FRAME                       0x20
 295 #define IBMVNIC_EXACT_MC                        0x10
 296 #define IBMVNIC_VLAN_STRIPPED                   0x08
 297         __be16 off_frame_data;
 298         __be32 len;
 299         __be64 correlator;
 300         __be16 vlan_tci;
 301         __be16 rc;
 302         u8 reserved[12];
 303 } __packed __aligned(8);
 304
 305 struct ibmvnic_generic_scrq {
 306         u8 first;
 307         u8 reserved[31];
 308 } __packed __aligned(8);
 309
 310 struct ibmvnic_rx_buff_add_desc {
 311         u8 first;
 312         u8 reserved[7];
 313         __be64 correlator;
 314         __be32 ioba;
 315         u8 map_id;
 316         __be32 len:24;
 317         u8 reserved2[8];
 318 } __packed __aligned(8);
 319
 320 struct ibmvnic_rc {
 321         u8 code; /* one of enum ibmvnic_rc_codes */
 322         u8 detailed_data[3];
 323 } __packed __aligned(4);
 324
 325 struct ibmvnic_generic_crq {
 326         u8 first;
 327         u8 cmd;
 328         u8 params[10];
 329         struct ibmvnic_rc rc;
 330 } __packed __aligned(8);
 331
 332 struct ibmvnic_version_exchange {
 333         u8 first;
 334         u8 cmd;
 335         __be16 version;
 336 #define IBMVNIC_INITIAL_VERSION 1
 337         u8 reserved[8];
 338         struct ibmvnic_rc rc;
 339 } __packed __aligned(8);
 340
 341 struct ibmvnic_capability {
 342         u8 first;
 343         u8 cmd;
 344         __be16 capability; /* one of ibmvnic_capabilities */
 345         __be64 number;
 346         struct ibmvnic_rc rc;
 347 } __packed __aligned(8);
 348
 349 struct ibmvnic_login {
 350         u8 first;
 351         u8 cmd;
 352         u8 reserved[6];
 353         __be32 ioba;
 354         __be32 len;
 355 } __packed __aligned(8);
 356
 357 struct ibmvnic_phys_parms {
 358         u8 first;
 359         u8 cmd;
 360         u8 flags1;
 361 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 362 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 363 #define IBMVNIC_PROMISC         0x20
 364 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 365 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 366 #define IBMVNIC_FULL_DUPLEX     0x04
 367 #define IBMVNIC_HALF_DUPLEX     0x02
 368 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 369         u8 flags2;
 370 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 371         __be32 speed;
 372 #define IBMVNIC_AUTONEG         0x80000000
 373 #define IBMVNIC_10MBPS          0x40000000
 374 #define IBMVNIC_100MBPS         0x20000000
 375 #define IBMVNIC_1GBPS           0x10000000
 376 #define IBMVNIC_10GBPS          0x08000000
 377 #define IBMVNIC_40GBPS          0x04000000
 378 #define IBMVNIC_100GBPS         0x02000000
 379 #define IBMVNIC_25GBPS          0x01000000
 380 #define IBMVNIC_50GBPS          0x00800000
 381 #define IBMVNIC_200GBPS         0x00400000
 382         __be32 mtu;
 383         struct ibmvnic_rc rc;
 384 } __packed __aligned(8);
 385
 386 struct ibmvnic_logical_link_state {
 387         u8 first;
 388         u8 cmd;
 389         u8 link_state;
 390 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 391 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 392 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 393         u8 reserved[9];
 394         struct ibmvnic_rc rc;
 395 } __packed __aligned(8);
 396
 397 struct ibmvnic_query_ip_offload {
 398         u8 first;
 399         u8 cmd;
 400         u8 reserved[2];
 401         __be32 len;
 402         __be32 ioba;
 403         struct ibmvnic_rc rc;
 404 } __packed __aligned(8);
 405
 406 struct ibmvnic_control_ip_offload {
 407         u8 first;
 408         u8 cmd;
 409         u8 reserved[2];
 410         __be32 ioba;
 411         __be32 len;
 412         struct ibmvnic_rc rc;
 413 } __packed __aligned(8);
 414
 415 struct ibmvnic_request_statistics {
 416         u8 first;
 417         u8 cmd;
 418         u8 flags;
 419 #define IBMVNIC_PHYSICAL_PORT   0x80
 420         u8 reserved1;
 421         __be32 ioba;
 422         __be32 len;
 423         u8 reserved[4];
 424 } __packed __aligned(8);
 425
 426 struct ibmvnic_error_indication {
 427         u8 first;
 428         u8 cmd;
 429         u8 flags;
 430 #define IBMVNIC_FATAL_ERROR     0x80
 431         u8 reserved1;
 432         __be32 error_id;
 433         __be32 detail_error_sz;
 434         __be16 error_cause;
 435         u8 reserved2[2];
 436 } __packed __aligned(8);
 437
 438 struct ibmvnic_link_state_indication {
 439         u8 first;
 440         u8 cmd;
 441         u8 reserved1[2];
 442         u8 phys_link_state;
 443         u8 logical_link_state;
 444         u8 reserved2[10];
 445 } __packed __aligned(8);
 446
 447 struct ibmvnic_change_mac_addr {
 448         u8 first;
 449         u8 cmd;
 450         u8 mac_addr[6];
 451         u8 reserved[4];
 452         struct ibmvnic_rc rc;
 453 } __packed __aligned(8);
 454
 455 struct ibmvnic_multicast_ctrl {
 456         u8 first;
 457         u8 cmd;
 458         u8 mac_addr[6];
 459         u8 flags;
 460 #define IBMVNIC_ENABLE_MC               0x80
 461 #define IBMVNIC_DISABLE_MC              0x40
 462 #define IBMVNIC_ENABLE_ALL              0x20
 463 #define IBMVNIC_DISABLE_ALL     0x10
 464         u8 reserved1;
 465         __be16 reserved2; /* was num_enabled_mc_addr; */
 466         struct ibmvnic_rc rc;
 467 } __packed __aligned(8);
 468
 469 struct ibmvnic_get_vpd_size {
 470         u8 first;
 471         u8 cmd;
 472         u8 reserved[14];
 473 } __packed __aligned(8);
 474
 475 struct ibmvnic_get_vpd_size_rsp {
 476         u8 first;
 477         u8 cmd;
 478         u8 reserved[2];
 479         __be64 len;
 480         struct ibmvnic_rc rc;
 481 } __packed __aligned(8);
 482
 483 struct ibmvnic_get_vpd {
 484         u8 first;
 485         u8 cmd;
 486         u8 reserved1[2];
 487         __be32 ioba;
 488         __be32 len;
 489         u8 reserved[4];
 490 } __packed __aligned(8);
 491
 492 struct ibmvnic_get_vpd_rsp {
 493         u8 first;
 494         u8 cmd;
 495         u8 reserved[10];
 496         struct ibmvnic_rc rc;
 497 } __packed __aligned(8);
 498
 499 struct ibmvnic_acl_change_indication {
 500         u8 first;
 501         u8 cmd;
 502         __be16 change_type;
 503 #define IBMVNIC_MAC_ACL 0
 504 #define IBMVNIC_VLAN_ACL 1
 505         u8 reserved[12];
 506 } __packed __aligned(8);
 507
 508 struct ibmvnic_acl_query {
 509         u8 first;
 510         u8 cmd;
 511         u8 reserved1[2];
 512         __be32 ioba;
 513         __be32 len;
 514         u8 reserved2[4];
 515 } __packed __aligned(8);
 516
 517 struct ibmvnic_tune {
 518         u8 first;
 519         u8 cmd;
 520         u8 reserved1[2];
 521         __be32 ioba;
 522         __be32 len;
 523         u8 reserved2[4];
 524 } __packed __aligned(8);
 525
 526 struct ibmvnic_request_map {
 527         u8 first;
 528         u8 cmd;
 529         u8 reserved1;
 530         u8 map_id;
 531         __be32 ioba;
 532         __be32 len;
 533         u8 reserved2[4];
 534 } __packed __aligned(8);
 535
 536 struct ibmvnic_request_map_rsp {
 537         u8 first;
 538         u8 cmd;
 539         u8 reserved1;
 540         u8 map_id;
 541         u8 reserved2[8];
 542         struct ibmvnic_rc rc;
 543 } __packed __aligned(8);
 544
 545 struct ibmvnic_request_unmap {
 546         u8 first;
 547         u8 cmd;
 548         u8 reserved1;
 549         u8 map_id;
 550         u8 reserved2[12];
 551 } __packed __aligned(8);
 552
 553 struct ibmvnic_request_unmap_rsp {
 554         u8 first;
 555         u8 cmd;
 556         u8 reserved1;
 557         u8 map_id;
 558         u8 reserved2[8];
 559         struct ibmvnic_rc rc;
 560 } __packed __aligned(8);
 561
 562 struct ibmvnic_query_map {
 563         u8 first;
 564         u8 cmd;
 565         u8 reserved[14];
 566 } __packed __aligned(8);
 567
 568 struct ibmvnic_query_map_rsp {
 569         u8 first;
 570         u8 cmd;
 571         u8 reserved;
 572         u8 page_size;
 573         __be32 tot_pages;
 574         __be32 free_pages;
 575         struct ibmvnic_rc rc;
 576 } __packed __aligned(8);
 577
 578 union ibmvnic_crq {
 579         struct ibmvnic_generic_crq generic;
 580         struct ibmvnic_version_exchange version_exchange;
 581         struct ibmvnic_version_exchange version_exchange_rsp;
 582         struct ibmvnic_capability query_capability;
 583         struct ibmvnic_capability query_capability_rsp;
 584         struct ibmvnic_capability request_capability;
 585         struct ibmvnic_capability request_capability_rsp;
 586         struct ibmvnic_login login;
 587         struct ibmvnic_generic_crq login_rsp;
 588         struct ibmvnic_phys_parms query_phys_parms;
 589         struct ibmvnic_phys_parms query_phys_parms_rsp;
 590         struct ibmvnic_phys_parms query_phys_capabilities;
 591         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 592         struct ibmvnic_phys_parms set_phys_parms;
 593         struct ibmvnic_phys_parms set_phys_parms_rsp;
 594         struct ibmvnic_logical_link_state logical_link_state;
 595         struct ibmvnic_logical_link_state logical_link_state_rsp;
 596         struct ibmvnic_query_ip_offload query_ip_offload;
 597         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 598         struct ibmvnic_control_ip_offload control_ip_offload;
 599         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 600         struct ibmvnic_request_statistics request_statistics;
 601         struct ibmvnic_generic_crq request_statistics_rsp;
 602         struct ibmvnic_error_indication error_indication;
 603         struct ibmvnic_link_state_indication link_state_indication;
 604         struct ibmvnic_change_mac_addr change_mac_addr;
 605         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 606         struct ibmvnic_multicast_ctrl multicast_ctrl;
 607         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 608         struct ibmvnic_get_vpd_size get_vpd_size;
 609         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 610         struct ibmvnic_get_vpd get_vpd;
 611         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 612         struct ibmvnic_acl_change_indication acl_change_indication;
 613         struct ibmvnic_acl_query acl_query;
 614         struct ibmvnic_generic_crq acl_query_rsp;
 615         struct ibmvnic_tune tune;
 616         struct ibmvnic_generic_crq tune_rsp;
 617         struct ibmvnic_request_map request_map;
 618         struct ibmvnic_request_map_rsp request_map_rsp;
 619         struct ibmvnic_request_unmap request_unmap;
 620         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 621         struct ibmvnic_query_map query_map;
 622         struct ibmvnic_query_map_rsp query_map_rsp;
 623 };
 624
 625 enum ibmvnic_rc_codes {
 626         SUCCESS = 0,
 627         PARTIALSUCCESS = 1,
 628         PERMISSION = 2,
 629         NOMEMORY = 3,
 630         PARAMETER = 4,
 631         UNKNOWNCOMMAND = 5,
 632         ABORTED = 6,
 633         INVALIDSTATE = 7,
 634         INVALIDIOBA = 8,
 635         INVALIDLENGTH = 9,
 636         UNSUPPORTEDOPTION = 10,
 637 };
 638
 639 enum ibmvnic_capabilities {
 640         MIN_TX_QUEUES = 1,
 641         MIN_RX_QUEUES = 2,
 642         MIN_RX_ADD_QUEUES = 3,
 643         MAX_TX_QUEUES = 4,
 644         MAX_RX_QUEUES = 5,
 645         MAX_RX_ADD_QUEUES = 6,
 646         REQ_TX_QUEUES = 7,
 647         REQ_RX_QUEUES = 8,
 648         REQ_RX_ADD_QUEUES = 9,
 649         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 650         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 651         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 652         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 653         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 654         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 655         TCP_IP_OFFLOAD = 16,
 656         PROMISC_REQUESTED = 17,
 657         PROMISC_SUPPORTED = 18,
 658         MIN_MTU = 19,
 659         MAX_MTU = 20,
 660         REQ_MTU = 21,
 661         MAX_MULTICAST_FILTERS = 22,
 662         VLAN_HEADER_INSERTION = 23,
 663         RX_VLAN_HEADER_INSERTION = 24,
 664         MAX_TX_SG_ENTRIES = 25,
 665         RX_SG_SUPPORTED = 26,
 666         RX_SG_REQUESTED = 27,
 667         OPT_TX_COMP_SUB_QUEUES = 28,
 668         OPT_RX_COMP_QUEUES = 29,
 669         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 670         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 671         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 672         TX_RX_DESC_REQ = 33,
 673 };
 674
 675 enum ibmvnic_error_cause {
 676         ADAPTER_PROBLEM = 0,
 677         BUS_PROBLEM = 1,
 678         FW_PROBLEM = 2,
 679         DD_PROBLEM = 3,
 680         EEH_RECOVERY = 4,
 681         FW_UPDATED = 5,
 682         LOW_MEMORY = 6,
 683 };
 684
 685 enum ibmvnic_commands {
 686         VERSION_EXCHANGE = 0x01,
 687         VERSION_EXCHANGE_RSP = 0x81,
 688         QUERY_CAPABILITY = 0x02,
 689         QUERY_CAPABILITY_RSP = 0x82,
 690         REQUEST_CAPABILITY = 0x03,
 691         REQUEST_CAPABILITY_RSP = 0x83,
 692         LOGIN = 0x04,
 693         LOGIN_RSP = 0x84,
 694         QUERY_PHYS_PARMS = 0x05,
 695         QUERY_PHYS_PARMS_RSP = 0x85,
 696         QUERY_PHYS_CAPABILITIES = 0x06,
 697         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 698         SET_PHYS_PARMS = 0x07,
 699         SET_PHYS_PARMS_RSP = 0x87,
 700         ERROR_INDICATION = 0x08,
 701         LOGICAL_LINK_STATE = 0x0C,
 702         LOGICAL_LINK_STATE_RSP = 0x8C,
 703         REQUEST_STATISTICS = 0x0D,
 704         REQUEST_STATISTICS_RSP = 0x8D,
 705         COLLECT_FW_TRACE = 0x11,
 706         COLLECT_FW_TRACE_RSP = 0x91,
 707         LINK_STATE_INDICATION = 0x12,
 708         CHANGE_MAC_ADDR = 0x13,
 709         CHANGE_MAC_ADDR_RSP = 0x93,
 710         MULTICAST_CTRL = 0x14,
 711         MULTICAST_CTRL_RSP = 0x94,
 712         GET_VPD_SIZE = 0x15,
 713         GET_VPD_SIZE_RSP = 0x95,
 714         GET_VPD = 0x16,
 715         GET_VPD_RSP = 0x96,
 716         TUNE = 0x17,
 717         TUNE_RSP = 0x97,
 718         QUERY_IP_OFFLOAD = 0x18,
 719         QUERY_IP_OFFLOAD_RSP = 0x98,
 720         CONTROL_IP_OFFLOAD = 0x19,
 721         CONTROL_IP_OFFLOAD_RSP = 0x99,
 722         ACL_CHANGE_INDICATION = 0x1A,
 723         ACL_QUERY = 0x1B,
 724         ACL_QUERY_RSP = 0x9B,
 725         QUERY_MAP = 0x1D,
 726         QUERY_MAP_RSP = 0x9D,
 727         REQUEST_MAP = 0x1E,
 728         REQUEST_MAP_RSP = 0x9E,
 729         REQUEST_UNMAP = 0x1F,
 730         REQUEST_UNMAP_RSP = 0x9F,
 731         VLAN_CTRL = 0x20,
 732         VLAN_CTRL_RSP = 0xA0,
 733 };
 734
 735 enum ibmvnic_crq_type {
 736         IBMVNIC_CRQ_CMD                 = 0x80,
 737         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 738         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 739         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 740         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 741 };
 742
 743 enum ibmvfc_crq_format {
 744         IBMVNIC_CRQ_INIT                 = 0x01,
 745         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 746         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 747         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 748 };
 749
 750 struct ibmvnic_crq_queue {
 751         union ibmvnic_crq *msgs;
 752         int size, cur;
 753         dma_addr_t msg_token;
 754         /* Used for serialization of msgs, cur */
 755         spinlock_t lock;
 756         bool active;
 757         char name[32];
 758 };
 759
 760 union sub_crq {
 761         struct ibmvnic_generic_scrq generic;
 762         struct ibmvnic_tx_comp_desc tx_comp;
 763         struct ibmvnic_tx_desc v1;
 764         struct ibmvnic_hdr_desc hdr;
 765         struct ibmvnic_hdr_ext_desc hdr_ext;
 766         struct ibmvnic_sge_desc sge;
 767         struct ibmvnic_rx_comp_desc rx_comp;
 768         struct ibmvnic_rx_buff_add_desc rx_add;
 769 };
 770
 771 struct ibmvnic_ind_xmit_queue {
 772         union sub_crq *indir_arr;
 773         dma_addr_t indir_dma;
 774         int index;
 775 };
 776
 777 struct ibmvnic_sub_crq_queue {
 778         union sub_crq *msgs;
 779         int size, cur;
 780         dma_addr_t msg_token;
 781         unsigned long crq_num;
 782         unsigned long hw_irq;
 783         unsigned int irq;
 784         unsigned int pool_index;
 785         int scrq_num;
 786         /* Used for serialization of msgs, cur */
 787         spinlock_t lock;
 788         struct sk_buff *rx_skb_top;
 789         struct ibmvnic_adapter *adapter;
 790         struct ibmvnic_ind_xmit_queue ind_buf;
 791         atomic_t used;
 792         char name[32];
 793         u64 handle;
 794 } ____cacheline_aligned;
 795
 796 struct ibmvnic_long_term_buff {
 797         unsigned char *buff;
 798         dma_addr_t addr;
 799         u64 size;
 800         u8 map_id;
 801 };
 802
 803 struct ibmvnic_tx_buff {
 804         struct sk_buff *skb;
 805         int index;
 806         int pool_index;
 807         int num_entries;
 808 };
 809
 810 struct ibmvnic_tx_pool {
 811         struct ibmvnic_tx_buff *tx_buff;
 812         int *free_map;
 813         int consumer_index;
 814         int producer_index;
 815         struct ibmvnic_long_term_buff long_term_buff;
 816         int num_buffers;
 817         int buf_size;
 818 } ____cacheline_aligned;
 819
 820 struct ibmvnic_rx_buff {
 821         struct sk_buff *skb;
 822         dma_addr_t dma;
 823         unsigned char *data;
 824         int size;
 825         int pool_index;
 826 };
 827
 828 struct ibmvnic_rx_pool {
 829         struct ibmvnic_rx_buff *rx_buff;
 830         int size;
 831         int index;
 832         int buff_size;
 833         atomic_t available;
 834         int *free_map;
 835         int next_free;
 836         int next_alloc;
 837         int active;
 838         struct ibmvnic_long_term_buff long_term_buff;
 839 } ____cacheline_aligned;
 840
 841 struct ibmvnic_vpd {
 842         unsigned char *buff;
 843         dma_addr_t dma_addr;
 844         u64 len;
 845 };
 846
 847 enum vnic_state {VNIC_PROBING = 1,
 848                  VNIC_PROBED,
 849                  VNIC_OPENING,
 850                  VNIC_OPEN,
 851                  VNIC_CLOSING,
 852                  VNIC_CLOSED,
 853                  VNIC_REMOVING,
 854                  VNIC_REMOVED,
 855                  VNIC_DOWN};
 856
 857 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 858                            VNIC_RESET_MOBILITY,
 859                            VNIC_RESET_FATAL,
 860                            VNIC_RESET_NON_FATAL,
 861                            VNIC_RESET_TIMEOUT,
 862                            VNIC_RESET_CHANGE_PARAM,
 863                            VNIC_RESET_PASSIVE_INIT};
 864
 865 struct ibmvnic_rwi {
 866         enum ibmvnic_reset_reason reset_reason;
 867         struct list_head list;
 868 };
 869
 870 struct ibmvnic_tunables {
 871         u64 rx_queues;
 872         u64 tx_queues;
 873         u64 rx_entries;
 874         u64 tx_entries;
 875         u64 mtu;
 876 };
 877
 878 struct ibmvnic_adapter {
 879         struct vio_dev *vdev;
 880         struct net_device *netdev;
 881         struct ibmvnic_crq_queue crq;
 882         u8 mac_addr[ETH_ALEN];
 883         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 884         dma_addr_t ip_offload_tok;
 885         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 886         dma_addr_t ip_offload_ctrl_tok;
 887         u32 msg_enable;
 888         u32 priv_flags;
 889
 890         /* Vital Product Data (VPD) */
 891         struct ibmvnic_vpd *vpd;
 892         char fw_version[32];
 893
 894         /* Statistics */
 895         struct ibmvnic_statistics stats;
 896         dma_addr_t stats_token;
 897         struct completion stats_done;
 898         int replenish_no_mem;
 899         int replenish_add_buff_success;
 900         int replenish_add_buff_failure;
 901         int replenish_task_cycles;
 902         int tx_send_failed;
 903         int tx_map_failed;
 904
 905         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
 906         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
 907
 908         int phys_link_state;
 909         int logical_link_state;
 910
 911         u32 speed;
 912         u8 duplex;
 913
 914         /* login data */
 915         struct ibmvnic_login_buffer *login_buf;
 916         dma_addr_t login_buf_token;
 917         int login_buf_sz;
 918
 919         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
 920         dma_addr_t login_rsp_buf_token;
 921         int login_rsp_buf_sz;
 922
 923         atomic_t running_cap_crqs;
 924         bool wait_capability;
 925
 926         struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned;
 927         struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned;
 928
 929         /* rx structs */
 930         struct napi_struct *napi;
 931         struct ibmvnic_rx_pool *rx_pool;
 932         u64 promisc;
 933
 934         struct ibmvnic_tx_pool *tx_pool;
 935         struct ibmvnic_tx_pool *tso_pool;
 936         struct completion init_done;
 937         int init_done_rc;
 938
 939         struct completion fw_done;
 940         /* Used for serialization of device commands */
 941         struct mutex fw_lock;
 942         int fw_done_rc;
 943
 944         struct completion reset_done;
 945         int reset_done_rc;
 946         bool wait_for_reset;
 947
 948         /* partner capabilities */
 949         u64 min_tx_queues;
 950         u64 min_rx_queues;
 951         u64 min_rx_add_queues;
 952         u64 max_tx_queues;
 953         u64 max_rx_queues;
 954         u64 max_rx_add_queues;
 955         u64 req_tx_queues;
 956         u64 req_rx_queues;
 957         u64 req_rx_add_queues;
 958         u64 min_tx_entries_per_subcrq;
 959         u64 min_rx_add_entries_per_subcrq;
 960         u64 max_tx_entries_per_subcrq;
 961         u64 max_rx_add_entries_per_subcrq;
 962         u64 req_tx_entries_per_subcrq;
 963         u64 req_rx_add_entries_per_subcrq;
 964         u64 tcp_ip_offload;
 965         u64 promisc_requested;
 966         u64 promisc_supported;
 967         u64 min_mtu;
 968         u64 max_mtu;
 969         u64 req_mtu;
 970         u64 max_multicast_filters;
 971         u64 vlan_header_insertion;
 972         u64 rx_vlan_header_insertion;
 973         u64 max_tx_sg_entries;
 974         u64 rx_sg_supported;
 975         u64 rx_sg_requested;
 976         u64 opt_tx_comp_sub_queues;
 977         u64 opt_rx_comp_queues;
 978         u64 opt_rx_bufadd_q_per_rx_comp_q;
 979         u64 opt_tx_entries_per_subcrq;
 980         u64 opt_rxba_entries_per_subcrq;
 981         __be64 tx_rx_desc_req;
 982         u8 map_id;
 983         u32 num_active_rx_scrqs;
 984         u32 num_active_rx_pools;
 985         u32 num_active_rx_napi;
 986         u32 num_active_tx_scrqs;
 987         u32 num_active_tx_pools;
 988         u32 cur_rx_buf_sz;
 989
 990         struct tasklet_struct tasklet;
 991         enum vnic_state state;
 992         /* Used for serialization of state field. When taking both state
 993          * and rwi locks, take state lock first.
 994          */
 995         spinlock_t state_lock;
 996         enum ibmvnic_reset_reason reset_reason;
 997         struct list_head rwi_list;
 998         /* Used for serialization of rwi_list. When taking both state
 999          * and rwi locks, take state lock first
1000          */
1001         spinlock_t rwi_lock;
1002         struct work_struct ibmvnic_reset;
1003         struct delayed_work ibmvnic_delayed_reset;
1004         unsigned long resetting;
1005         bool napi_enabled, from_passive_init;
1006         bool login_pending;
1007         /* last device reset time */
1008         unsigned long last_reset_time;
1009
1010         bool failover_pending;
1011         bool force_reset_recovery;
1012
1013         struct ibmvnic_tunables desired;
1014         struct ibmvnic_tunables fallback;
1015 };