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_OPEN_FAILED     3
  22
  23 /* basic structures plus 100 2k buffers */
  24 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT  610305
  25
  26 /* Initial module_parameters */
  27 #define IBMVNIC_RX_WEIGHT               16
  28 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
  29 #define IBMVNIC_BUFFS_PER_POOL  100
  30 #define IBMVNIC_MAX_QUEUES      16
  31 #define IBMVNIC_MAX_QUEUE_SZ   4096
  32 #define IBMVNIC_MAX_IND_DESCS  16
  33 #define IBMVNIC_IND_ARR_SZ      (IBMVNIC_MAX_IND_DESCS * 32)
  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 static const char ibmvnic_priv_flags[][ETH_GSTRING_LEN] = {
  45 #define IBMVNIC_USE_SERVER_MAXES 0x1
  46         "use-server-maxes"
  47 };
  48
  49 struct ibmvnic_login_buffer {
  50         __be32 len;
  51         __be32 version;
  52 #define INITIAL_VERSION_LB 1
  53         __be32 num_txcomp_subcrqs;
  54         __be32 off_txcomp_subcrqs;
  55         __be32 num_rxcomp_subcrqs;
  56         __be32 off_rxcomp_subcrqs;
  57         __be32 login_rsp_ioba;
  58         __be32 login_rsp_len;
  59         __be32 client_data_offset;
  60         __be32 client_data_len;
  61 } __packed __aligned(8);
  62
  63 struct ibmvnic_login_rsp_buffer {
  64         __be32 len;
  65         __be32 version;
  66 #define INITIAL_VERSION_LRB 1
  67         __be32 num_txsubm_subcrqs;
  68         __be32 off_txsubm_subcrqs;
  69         __be32 num_rxadd_subcrqs;
  70         __be32 off_rxadd_subcrqs;
  71         __be32 off_rxadd_buff_size;
  72         __be32 num_supp_tx_desc;
  73         __be32 off_supp_tx_desc;
  74 } __packed __aligned(8);
  75
  76 struct ibmvnic_query_ip_offload_buffer {
  77         __be32 len;
  78         __be32 version;
  79 #define INITIAL_VERSION_IOB 1
  80         u8 ipv4_chksum;
  81         u8 ipv6_chksum;
  82         u8 tcp_ipv4_chksum;
  83         u8 tcp_ipv6_chksum;
  84         u8 udp_ipv4_chksum;
  85         u8 udp_ipv6_chksum;
  86         u8 large_tx_ipv4;
  87         u8 large_tx_ipv6;
  88         u8 large_rx_ipv4;
  89         u8 large_rx_ipv6;
  90         u8 reserved1[14];
  91         __be16 max_ipv4_header_size;
  92         __be16 max_ipv6_header_size;
  93         __be16 max_tcp_header_size;
  94         __be16 max_udp_header_size;
  95         __be32 max_large_tx_size;
  96         __be32 max_large_rx_size;
  97         u8 reserved2[16];
  98         u8 ipv6_extension_header;
  99 #define IPV6_EH_NOT_SUPPORTED   0x00
 100 #define IPV6_EH_SUPPORTED_LIM   0x01
 101 #define IPV6_EH_SUPPORTED       0xFF
 102         u8 tcp_pseudosum_req;
 103 #define TCP_PS_NOT_REQUIRED     0x00
 104 #define TCP_PS_REQUIRED         0x01
 105         u8 reserved3[30];
 106         __be16 num_ipv6_ext_headers;
 107         __be32 off_ipv6_ext_headers;
 108         u8 reserved4[154];
 109 } __packed __aligned(8);
 110
 111 struct ibmvnic_control_ip_offload_buffer {
 112         __be32 len;
 113         __be32 version;
 114 #define INITIAL_VERSION_IOB 1
 115         u8 ipv4_chksum;
 116         u8 ipv6_chksum;
 117         u8 tcp_ipv4_chksum;
 118         u8 tcp_ipv6_chksum;
 119         u8 udp_ipv4_chksum;
 120         u8 udp_ipv6_chksum;
 121         u8 large_tx_ipv4;
 122         u8 large_tx_ipv6;
 123         u8 bad_packet_rx;
 124         u8 large_rx_ipv4;
 125         u8 large_rx_ipv6;
 126         u8 reserved4[111];
 127 } __packed __aligned(8);
 128
 129 struct ibmvnic_fw_component {
 130         u8 name[48];
 131         __be32 trace_buff_size;
 132         u8 correlator;
 133         u8 trace_level;
 134         u8 parent_correlator;
 135         u8 error_check_level;
 136         u8 trace_on;
 137         u8 reserved[7];
 138         u8 description[192];
 139 } __packed __aligned(8);
 140
 141 struct ibmvnic_fw_trace_entry {
 142         __be32 trace_id;
 143         u8 num_valid_data;
 144         u8 reserved[3];
 145         __be64 pmc_registers;
 146         __be64 timebase;
 147         __be64 trace_data[5];
 148 } __packed __aligned(8);
 149
 150 struct ibmvnic_statistics {
 151         __be32 version;
 152         __be32 promiscuous;
 153         __be64 rx_packets;
 154         __be64 rx_bytes;
 155         __be64 tx_packets;
 156         __be64 tx_bytes;
 157         __be64 ucast_tx_packets;
 158         __be64 ucast_rx_packets;
 159         __be64 mcast_tx_packets;
 160         __be64 mcast_rx_packets;
 161         __be64 bcast_tx_packets;
 162         __be64 bcast_rx_packets;
 163         __be64 align_errors;
 164         __be64 fcs_errors;
 165         __be64 single_collision_frames;
 166         __be64 multi_collision_frames;
 167         __be64 sqe_test_errors;
 168         __be64 deferred_tx;
 169         __be64 late_collisions;
 170         __be64 excess_collisions;
 171         __be64 internal_mac_tx_errors;
 172         __be64 carrier_sense;
 173         __be64 too_long_frames;
 174         __be64 internal_mac_rx_errors;
 175         u8 reserved[72];
 176 } __packed __aligned(8);
 177
 178 #define NUM_TX_STATS 3
 179 struct ibmvnic_tx_queue_stats {
 180         u64 packets;
 181         u64 bytes;
 182         u64 dropped_packets;
 183 };
 184
 185 #define NUM_RX_STATS 3
 186 struct ibmvnic_rx_queue_stats {
 187         u64 packets;
 188         u64 bytes;
 189         u64 interrupts;
 190 };
 191
 192 struct ibmvnic_acl_buffer {
 193         __be32 len;
 194         __be32 version;
 195 #define INITIAL_VERSION_IOB 1
 196         u8 mac_acls_restrict;
 197         u8 vlan_acls_restrict;
 198         u8 reserved1[22];
 199         __be32 num_mac_addrs;
 200         __be32 offset_mac_addrs;
 201         __be32 num_vlan_ids;
 202         __be32 offset_vlan_ids;
 203         u8 reserved2[80];
 204 } __packed __aligned(8);
 205
 206 /* descriptors have been changed, how should this be defined?  1? 4? */
 207
 208 #define IBMVNIC_TX_DESC_VERSIONS 3
 209
 210 /* is this still needed? */
 211 struct ibmvnic_tx_comp_desc {
 212         u8 first;
 213         u8 num_comps;
 214         __be16 rcs[5];
 215         __be32 correlators[5];
 216 } __packed __aligned(8);
 217
 218 /* some flags that included in v0 descriptor, which is gone
 219  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
 220  * and only in some offload_flags variable that doesn't seem
 221  * to be used anywhere, can probably be removed?
 222  */
 223
 224 #define IBMVNIC_TCP_CHKSUM              0x20
 225 #define IBMVNIC_UDP_CHKSUM              0x08
 226
 227 struct ibmvnic_tx_desc {
 228         u8 first;
 229         u8 type;
 230
 231 #define IBMVNIC_TX_DESC 0x10
 232         u8 n_crq_elem;
 233         u8 n_sge;
 234         u8 flags1;
 235 #define IBMVNIC_TX_COMP_NEEDED          0x80
 236 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 237 #define IBMVNIC_TX_LSO                  0x20
 238 #define IBMVNIC_TX_PROT_TCP             0x10
 239 #define IBMVNIC_TX_PROT_UDP             0x08
 240 #define IBMVNIC_TX_PROT_IPV4            0x04
 241 #define IBMVNIC_TX_PROT_IPV6            0x02
 242 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 243         u8 flags2;
 244 #define IBMVNIC_TX_VLAN_INSERT          0x80
 245         __be16 mss;
 246         u8 reserved[4];
 247         __be32 correlator;
 248         __be16 vlan_id;
 249         __be16 dma_reg;
 250         __be32 sge_len;
 251         __be64 ioba;
 252 } __packed __aligned(8);
 253
 254 struct ibmvnic_hdr_desc {
 255         u8 first;
 256         u8 type;
 257 #define IBMVNIC_HDR_DESC                0x11
 258         u8 len;
 259         u8 l2_len;
 260         __be16 l3_len;
 261         u8 l4_len;
 262         u8 flag;
 263         u8 data[24];
 264 } __packed __aligned(8);
 265
 266 struct ibmvnic_hdr_ext_desc {
 267         u8 first;
 268         u8 type;
 269 #define IBMVNIC_HDR_EXT_DESC            0x12
 270         u8 len;
 271         u8 data[29];
 272 } __packed __aligned(8);
 273
 274 struct ibmvnic_sge_desc {
 275         u8 first;
 276         u8 type;
 277 #define IBMVNIC_SGE_DESC                0x30
 278         __be16 sge1_dma_reg;
 279         __be32 sge1_len;
 280         __be64 sge1_ioba;
 281         __be16 reserved;
 282         __be16 sge2_dma_reg;
 283         __be32 sge2_len;
 284         __be64 sge2_ioba;
 285 } __packed __aligned(8);
 286
 287 struct ibmvnic_rx_comp_desc {
 288         u8 first;
 289         u8 flags;
 290 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 291 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 292 #define IBMVNIC_END_FRAME                       0x20
 293 #define IBMVNIC_EXACT_MC                        0x10
 294 #define IBMVNIC_VLAN_STRIPPED                   0x08
 295         __be16 off_frame_data;
 296         __be32 len;
 297         __be64 correlator;
 298         __be16 vlan_tci;
 299         __be16 rc;
 300         u8 reserved[12];
 301 } __packed __aligned(8);
 302
 303 struct ibmvnic_generic_scrq {
 304         u8 first;
 305         u8 reserved[31];
 306 } __packed __aligned(8);
 307
 308 struct ibmvnic_rx_buff_add_desc {
 309         u8 first;
 310         u8 reserved[7];
 311         __be64 correlator;
 312         __be32 ioba;
 313         u8 map_id;
 314         __be32 len:24;
 315         u8 reserved2[8];
 316 } __packed __aligned(8);
 317
 318 struct ibmvnic_rc {
 319         u8 code; /* one of enum ibmvnic_rc_codes */
 320         u8 detailed_data[3];
 321 } __packed __aligned(4);
 322
 323 struct ibmvnic_generic_crq {
 324         u8 first;
 325         u8 cmd;
 326         u8 params[10];
 327         struct ibmvnic_rc rc;
 328 } __packed __aligned(8);
 329
 330 struct ibmvnic_version_exchange {
 331         u8 first;
 332         u8 cmd;
 333         __be16 version;
 334 #define IBMVNIC_INITIAL_VERSION 1
 335         u8 reserved[8];
 336         struct ibmvnic_rc rc;
 337 } __packed __aligned(8);
 338
 339 struct ibmvnic_capability {
 340         u8 first;
 341         u8 cmd;
 342         __be16 capability; /* one of ibmvnic_capabilities */
 343         __be64 number;
 344         struct ibmvnic_rc rc;
 345 } __packed __aligned(8);
 346
 347 struct ibmvnic_login {
 348         u8 first;
 349         u8 cmd;
 350         u8 reserved[6];
 351         __be32 ioba;
 352         __be32 len;
 353 } __packed __aligned(8);
 354
 355 struct ibmvnic_phys_parms {
 356         u8 first;
 357         u8 cmd;
 358         u8 flags1;
 359 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 360 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 361 #define IBMVNIC_PROMISC         0x20
 362 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 363 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 364 #define IBMVNIC_FULL_DUPLEX     0x04
 365 #define IBMVNIC_HALF_DUPLEX     0x02
 366 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 367         u8 flags2;
 368 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 369         __be32 speed;
 370 #define IBMVNIC_AUTONEG         0x80000000
 371 #define IBMVNIC_10MBPS          0x40000000
 372 #define IBMVNIC_100MBPS         0x20000000
 373 #define IBMVNIC_1GBPS           0x10000000
 374 #define IBMVNIC_10GBPS          0x08000000
 375 #define IBMVNIC_40GBPS          0x04000000
 376 #define IBMVNIC_100GBPS         0x02000000
 377 #define IBMVNIC_25GBPS          0x01000000
 378 #define IBMVNIC_50GBPS          0x00800000
 379 #define IBMVNIC_200GBPS         0x00400000
 380         __be32 mtu;
 381         struct ibmvnic_rc rc;
 382 } __packed __aligned(8);
 383
 384 struct ibmvnic_logical_link_state {
 385         u8 first;
 386         u8 cmd;
 387         u8 link_state;
 388 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 389 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 390 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 391         u8 reserved[9];
 392         struct ibmvnic_rc rc;
 393 } __packed __aligned(8);
 394
 395 struct ibmvnic_query_ip_offload {
 396         u8 first;
 397         u8 cmd;
 398         u8 reserved[2];
 399         __be32 len;
 400         __be32 ioba;
 401         struct ibmvnic_rc rc;
 402 } __packed __aligned(8);
 403
 404 struct ibmvnic_control_ip_offload {
 405         u8 first;
 406         u8 cmd;
 407         u8 reserved[2];
 408         __be32 ioba;
 409         __be32 len;
 410         struct ibmvnic_rc rc;
 411 } __packed __aligned(8);
 412
 413 struct ibmvnic_request_statistics {
 414         u8 first;
 415         u8 cmd;
 416         u8 flags;
 417 #define IBMVNIC_PHYSICAL_PORT   0x80
 418         u8 reserved1;
 419         __be32 ioba;
 420         __be32 len;
 421         u8 reserved[4];
 422 } __packed __aligned(8);
 423
 424 struct ibmvnic_error_indication {
 425         u8 first;
 426         u8 cmd;
 427         u8 flags;
 428 #define IBMVNIC_FATAL_ERROR     0x80
 429         u8 reserved1;
 430         __be32 error_id;
 431         __be32 detail_error_sz;
 432         __be16 error_cause;
 433         u8 reserved2[2];
 434 } __packed __aligned(8);
 435
 436 struct ibmvnic_link_state_indication {
 437         u8 first;
 438         u8 cmd;
 439         u8 reserved1[2];
 440         u8 phys_link_state;
 441         u8 logical_link_state;
 442         u8 reserved2[10];
 443 } __packed __aligned(8);
 444
 445 struct ibmvnic_change_mac_addr {
 446         u8 first;
 447         u8 cmd;
 448         u8 mac_addr[6];
 449         u8 reserved[4];
 450         struct ibmvnic_rc rc;
 451 } __packed __aligned(8);
 452
 453 struct ibmvnic_multicast_ctrl {
 454         u8 first;
 455         u8 cmd;
 456         u8 mac_addr[6];
 457         u8 flags;
 458 #define IBMVNIC_ENABLE_MC               0x80
 459 #define IBMVNIC_DISABLE_MC              0x40
 460 #define IBMVNIC_ENABLE_ALL              0x20
 461 #define IBMVNIC_DISABLE_ALL     0x10
 462         u8 reserved1;
 463         __be16 reserved2; /* was num_enabled_mc_addr; */
 464         struct ibmvnic_rc rc;
 465 } __packed __aligned(8);
 466
 467 struct ibmvnic_get_vpd_size {
 468         u8 first;
 469         u8 cmd;
 470         u8 reserved[14];
 471 } __packed __aligned(8);
 472
 473 struct ibmvnic_get_vpd_size_rsp {
 474         u8 first;
 475         u8 cmd;
 476         u8 reserved[2];
 477         __be64 len;
 478         struct ibmvnic_rc rc;
 479 } __packed __aligned(8);
 480
 481 struct ibmvnic_get_vpd {
 482         u8 first;
 483         u8 cmd;
 484         u8 reserved1[2];
 485         __be32 ioba;
 486         __be32 len;
 487         u8 reserved[4];
 488 } __packed __aligned(8);
 489
 490 struct ibmvnic_get_vpd_rsp {
 491         u8 first;
 492         u8 cmd;
 493         u8 reserved[10];
 494         struct ibmvnic_rc rc;
 495 } __packed __aligned(8);
 496
 497 struct ibmvnic_acl_change_indication {
 498         u8 first;
 499         u8 cmd;
 500         __be16 change_type;
 501 #define IBMVNIC_MAC_ACL 0
 502 #define IBMVNIC_VLAN_ACL 1
 503         u8 reserved[12];
 504 } __packed __aligned(8);
 505
 506 struct ibmvnic_acl_query {
 507         u8 first;
 508         u8 cmd;
 509         u8 reserved1[2];
 510         __be32 ioba;
 511         __be32 len;
 512         u8 reserved2[4];
 513 } __packed __aligned(8);
 514
 515 struct ibmvnic_tune {
 516         u8 first;
 517         u8 cmd;
 518         u8 reserved1[2];
 519         __be32 ioba;
 520         __be32 len;
 521         u8 reserved2[4];
 522 } __packed __aligned(8);
 523
 524 struct ibmvnic_request_map {
 525         u8 first;
 526         u8 cmd;
 527         u8 reserved1;
 528         u8 map_id;
 529         __be32 ioba;
 530         __be32 len;
 531         u8 reserved2[4];
 532 } __packed __aligned(8);
 533
 534 struct ibmvnic_request_map_rsp {
 535         u8 first;
 536         u8 cmd;
 537         u8 reserved1;
 538         u8 map_id;
 539         u8 reserved2[8];
 540         struct ibmvnic_rc rc;
 541 } __packed __aligned(8);
 542
 543 struct ibmvnic_request_unmap {
 544         u8 first;
 545         u8 cmd;
 546         u8 reserved1;
 547         u8 map_id;
 548         u8 reserved2[12];
 549 } __packed __aligned(8);
 550
 551 struct ibmvnic_request_unmap_rsp {
 552         u8 first;
 553         u8 cmd;
 554         u8 reserved1;
 555         u8 map_id;
 556         u8 reserved2[8];
 557         struct ibmvnic_rc rc;
 558 } __packed __aligned(8);
 559
 560 struct ibmvnic_query_map {
 561         u8 first;
 562         u8 cmd;
 563         u8 reserved[14];
 564 } __packed __aligned(8);
 565
 566 struct ibmvnic_query_map_rsp {
 567         u8 first;
 568         u8 cmd;
 569         u8 reserved;
 570         u8 page_size;
 571         __be32 tot_pages;
 572         __be32 free_pages;
 573         struct ibmvnic_rc rc;
 574 } __packed __aligned(8);
 575
 576 union ibmvnic_crq {
 577         struct ibmvnic_generic_crq generic;
 578         struct ibmvnic_version_exchange version_exchange;
 579         struct ibmvnic_version_exchange version_exchange_rsp;
 580         struct ibmvnic_capability query_capability;
 581         struct ibmvnic_capability query_capability_rsp;
 582         struct ibmvnic_capability request_capability;
 583         struct ibmvnic_capability request_capability_rsp;
 584         struct ibmvnic_login login;
 585         struct ibmvnic_generic_crq login_rsp;
 586         struct ibmvnic_phys_parms query_phys_parms;
 587         struct ibmvnic_phys_parms query_phys_parms_rsp;
 588         struct ibmvnic_phys_parms query_phys_capabilities;
 589         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 590         struct ibmvnic_phys_parms set_phys_parms;
 591         struct ibmvnic_phys_parms set_phys_parms_rsp;
 592         struct ibmvnic_logical_link_state logical_link_state;
 593         struct ibmvnic_logical_link_state logical_link_state_rsp;
 594         struct ibmvnic_query_ip_offload query_ip_offload;
 595         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 596         struct ibmvnic_control_ip_offload control_ip_offload;
 597         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 598         struct ibmvnic_request_statistics request_statistics;
 599         struct ibmvnic_generic_crq request_statistics_rsp;
 600         struct ibmvnic_error_indication error_indication;
 601         struct ibmvnic_link_state_indication link_state_indication;
 602         struct ibmvnic_change_mac_addr change_mac_addr;
 603         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 604         struct ibmvnic_multicast_ctrl multicast_ctrl;
 605         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 606         struct ibmvnic_get_vpd_size get_vpd_size;
 607         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 608         struct ibmvnic_get_vpd get_vpd;
 609         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 610         struct ibmvnic_acl_change_indication acl_change_indication;
 611         struct ibmvnic_acl_query acl_query;
 612         struct ibmvnic_generic_crq acl_query_rsp;
 613         struct ibmvnic_tune tune;
 614         struct ibmvnic_generic_crq tune_rsp;
 615         struct ibmvnic_request_map request_map;
 616         struct ibmvnic_request_map_rsp request_map_rsp;
 617         struct ibmvnic_request_unmap request_unmap;
 618         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 619         struct ibmvnic_query_map query_map;
 620         struct ibmvnic_query_map_rsp query_map_rsp;
 621 };
 622
 623 enum ibmvnic_rc_codes {
 624         SUCCESS = 0,
 625         PARTIALSUCCESS = 1,
 626         PERMISSION = 2,
 627         NOMEMORY = 3,
 628         PARAMETER = 4,
 629         UNKNOWNCOMMAND = 5,
 630         ABORTED = 6,
 631         INVALIDSTATE = 7,
 632         INVALIDIOBA = 8,
 633         INVALIDLENGTH = 9,
 634         UNSUPPORTEDOPTION = 10,
 635 };
 636
 637 enum ibmvnic_capabilities {
 638         MIN_TX_QUEUES = 1,
 639         MIN_RX_QUEUES = 2,
 640         MIN_RX_ADD_QUEUES = 3,
 641         MAX_TX_QUEUES = 4,
 642         MAX_RX_QUEUES = 5,
 643         MAX_RX_ADD_QUEUES = 6,
 644         REQ_TX_QUEUES = 7,
 645         REQ_RX_QUEUES = 8,
 646         REQ_RX_ADD_QUEUES = 9,
 647         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 648         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 649         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 650         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 651         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 652         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 653         TCP_IP_OFFLOAD = 16,
 654         PROMISC_REQUESTED = 17,
 655         PROMISC_SUPPORTED = 18,
 656         MIN_MTU = 19,
 657         MAX_MTU = 20,
 658         REQ_MTU = 21,
 659         MAX_MULTICAST_FILTERS = 22,
 660         VLAN_HEADER_INSERTION = 23,
 661         RX_VLAN_HEADER_INSERTION = 24,
 662         MAX_TX_SG_ENTRIES = 25,
 663         RX_SG_SUPPORTED = 26,
 664         RX_SG_REQUESTED = 27,
 665         OPT_TX_COMP_SUB_QUEUES = 28,
 666         OPT_RX_COMP_QUEUES = 29,
 667         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 668         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 669         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 670         TX_RX_DESC_REQ = 33,
 671 };
 672
 673 enum ibmvnic_error_cause {
 674         ADAPTER_PROBLEM = 0,
 675         BUS_PROBLEM = 1,
 676         FW_PROBLEM = 2,
 677         DD_PROBLEM = 3,
 678         EEH_RECOVERY = 4,
 679         FW_UPDATED = 5,
 680         LOW_MEMORY = 6,
 681 };
 682
 683 enum ibmvnic_commands {
 684         VERSION_EXCHANGE = 0x01,
 685         VERSION_EXCHANGE_RSP = 0x81,
 686         QUERY_CAPABILITY = 0x02,
 687         QUERY_CAPABILITY_RSP = 0x82,
 688         REQUEST_CAPABILITY = 0x03,
 689         REQUEST_CAPABILITY_RSP = 0x83,
 690         LOGIN = 0x04,
 691         LOGIN_RSP = 0x84,
 692         QUERY_PHYS_PARMS = 0x05,
 693         QUERY_PHYS_PARMS_RSP = 0x85,
 694         QUERY_PHYS_CAPABILITIES = 0x06,
 695         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 696         SET_PHYS_PARMS = 0x07,
 697         SET_PHYS_PARMS_RSP = 0x87,
 698         ERROR_INDICATION = 0x08,
 699         LOGICAL_LINK_STATE = 0x0C,
 700         LOGICAL_LINK_STATE_RSP = 0x8C,
 701         REQUEST_STATISTICS = 0x0D,
 702         REQUEST_STATISTICS_RSP = 0x8D,
 703         COLLECT_FW_TRACE = 0x11,
 704         COLLECT_FW_TRACE_RSP = 0x91,
 705         LINK_STATE_INDICATION = 0x12,
 706         CHANGE_MAC_ADDR = 0x13,
 707         CHANGE_MAC_ADDR_RSP = 0x93,
 708         MULTICAST_CTRL = 0x14,
 709         MULTICAST_CTRL_RSP = 0x94,
 710         GET_VPD_SIZE = 0x15,
 711         GET_VPD_SIZE_RSP = 0x95,
 712         GET_VPD = 0x16,
 713         GET_VPD_RSP = 0x96,
 714         TUNE = 0x17,
 715         TUNE_RSP = 0x97,
 716         QUERY_IP_OFFLOAD = 0x18,
 717         QUERY_IP_OFFLOAD_RSP = 0x98,
 718         CONTROL_IP_OFFLOAD = 0x19,
 719         CONTROL_IP_OFFLOAD_RSP = 0x99,
 720         ACL_CHANGE_INDICATION = 0x1A,
 721         ACL_QUERY = 0x1B,
 722         ACL_QUERY_RSP = 0x9B,
 723         QUERY_MAP = 0x1D,
 724         QUERY_MAP_RSP = 0x9D,
 725         REQUEST_MAP = 0x1E,
 726         REQUEST_MAP_RSP = 0x9E,
 727         REQUEST_UNMAP = 0x1F,
 728         REQUEST_UNMAP_RSP = 0x9F,
 729         VLAN_CTRL = 0x20,
 730         VLAN_CTRL_RSP = 0xA0,
 731 };
 732
 733 enum ibmvnic_crq_type {
 734         IBMVNIC_CRQ_CMD                 = 0x80,
 735         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 736         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 737         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 738         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 739 };
 740
 741 enum ibmvfc_crq_format {
 742         IBMVNIC_CRQ_INIT                 = 0x01,
 743         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 744         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 745         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 746 };
 747
 748 struct ibmvnic_crq_queue {
 749         union ibmvnic_crq *msgs;
 750         int size, cur;
 751         dma_addr_t msg_token;
 752         /* Used for serialization of msgs, cur */
 753         spinlock_t lock;
 754         bool active;
 755         char name[32];
 756 };
 757
 758 union sub_crq {
 759         struct ibmvnic_generic_scrq generic;
 760         struct ibmvnic_tx_comp_desc tx_comp;
 761         struct ibmvnic_tx_desc v1;
 762         struct ibmvnic_hdr_desc hdr;
 763         struct ibmvnic_hdr_ext_desc hdr_ext;
 764         struct ibmvnic_sge_desc sge;
 765         struct ibmvnic_rx_comp_desc rx_comp;
 766         struct ibmvnic_rx_buff_add_desc rx_add;
 767 };
 768
 769 struct ibmvnic_ind_xmit_queue {
 770         union sub_crq *indir_arr;
 771         dma_addr_t indir_dma;
 772         int index;
 773 };
 774
 775 struct ibmvnic_sub_crq_queue {
 776         union sub_crq *msgs;
 777         int size, cur;
 778         dma_addr_t msg_token;
 779         unsigned long crq_num;
 780         unsigned long hw_irq;
 781         unsigned int irq;
 782         unsigned int pool_index;
 783         int scrq_num;
 784         /* Used for serialization of msgs, cur */
 785         spinlock_t lock;
 786         struct sk_buff *rx_skb_top;
 787         struct ibmvnic_adapter *adapter;
 788         struct ibmvnic_ind_xmit_queue ind_buf;
 789         atomic_t used;
 790         char name[32];
 791         u64 handle;
 792 } ____cacheline_aligned;
 793
 794 struct ibmvnic_long_term_buff {
 795         unsigned char *buff;
 796         dma_addr_t addr;
 797         u64 size;
 798         u8 map_id;
 799 };
 800
 801 struct ibmvnic_tx_buff {
 802         struct sk_buff *skb;
 803         int index;
 804         int pool_index;
 805         int num_entries;
 806 };
 807
 808 struct ibmvnic_tx_pool {
 809         struct ibmvnic_tx_buff *tx_buff;
 810         int *free_map;
 811         int consumer_index;
 812         int producer_index;
 813         struct ibmvnic_long_term_buff long_term_buff;
 814         int num_buffers;
 815         int buf_size;
 816 } ____cacheline_aligned;
 817
 818 struct ibmvnic_rx_buff {
 819         struct sk_buff *skb;
 820         dma_addr_t dma;
 821         unsigned char *data;
 822         int size;
 823         int pool_index;
 824 };
 825
 826 struct ibmvnic_rx_pool {
 827         struct ibmvnic_rx_buff *rx_buff;
 828         int size;                       /* # of buffers in the pool */
 829         int index;
 830         int buff_size;
 831         atomic_t available;
 832         int *free_map;
 833         int next_free;
 834         int next_alloc;
 835         int active;
 836         struct ibmvnic_long_term_buff long_term_buff;
 837 } ____cacheline_aligned;
 838
 839 struct ibmvnic_vpd {
 840         unsigned char *buff;
 841         dma_addr_t dma_addr;
 842         u64 len;
 843 };
 844
 845 enum vnic_state {VNIC_PROBING = 1,
 846                  VNIC_PROBED,
 847                  VNIC_OPENING,
 848                  VNIC_OPEN,
 849                  VNIC_CLOSING,
 850                  VNIC_CLOSED,
 851                  VNIC_REMOVING,
 852                  VNIC_REMOVED,
 853                  VNIC_DOWN};
 854
 855 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 856                            VNIC_RESET_MOBILITY,
 857                            VNIC_RESET_FATAL,
 858                            VNIC_RESET_NON_FATAL,
 859                            VNIC_RESET_TIMEOUT,
 860                            VNIC_RESET_CHANGE_PARAM,
 861                            VNIC_RESET_PASSIVE_INIT};
 862
 863 struct ibmvnic_rwi {
 864         enum ibmvnic_reset_reason reset_reason;
 865         struct list_head list;
 866 };
 867
 868 struct ibmvnic_tunables {
 869         u64 rx_queues;
 870         u64 tx_queues;
 871         u64 rx_entries;
 872         u64 tx_entries;
 873         u64 mtu;
 874 };
 875
 876 struct ibmvnic_adapter {
 877         struct vio_dev *vdev;
 878         struct net_device *netdev;
 879         struct ibmvnic_crq_queue crq;
 880         u8 mac_addr[ETH_ALEN];
 881         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 882         dma_addr_t ip_offload_tok;
 883         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 884         dma_addr_t ip_offload_ctrl_tok;
 885         u32 msg_enable;
 886         u32 priv_flags;
 887
 888         /* Vital Product Data (VPD) */
 889         struct ibmvnic_vpd *vpd;
 890         char fw_version[32];
 891
 892         /* Statistics */
 893         struct ibmvnic_statistics stats;
 894         dma_addr_t stats_token;
 895         struct completion stats_done;
 896         int replenish_no_mem;
 897         int replenish_add_buff_success;
 898         int replenish_add_buff_failure;
 899         int replenish_task_cycles;
 900         int tx_send_failed;
 901         int tx_map_failed;
 902
 903         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
 904         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
 905
 906         int phys_link_state;
 907         int logical_link_state;
 908
 909         u32 speed;
 910         u8 duplex;
 911
 912         /* login data */
 913         struct ibmvnic_login_buffer *login_buf;
 914         dma_addr_t login_buf_token;
 915         int login_buf_sz;
 916
 917         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
 918         dma_addr_t login_rsp_buf_token;
 919         int login_rsp_buf_sz;
 920
 921         atomic_t running_cap_crqs;
 922         bool wait_capability;
 923
 924         struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned;
 925         struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned;
 926
 927         /* rx structs */
 928         struct napi_struct *napi;
 929         struct ibmvnic_rx_pool *rx_pool;
 930         u64 promisc;
 931
 932         struct ibmvnic_tx_pool *tx_pool;
 933         struct ibmvnic_tx_pool *tso_pool;
 934         struct completion init_done;
 935         int init_done_rc;
 936
 937         struct completion fw_done;
 938         /* Used for serialization of device commands */
 939         struct mutex fw_lock;
 940         int fw_done_rc;
 941
 942         struct completion reset_done;
 943         int reset_done_rc;
 944         bool wait_for_reset;
 945
 946         /* partner capabilities */
 947         u64 min_tx_queues;
 948         u64 min_rx_queues;
 949         u64 min_rx_add_queues;
 950         u64 max_tx_queues;
 951         u64 max_rx_queues;
 952         u64 max_rx_add_queues;
 953         u64 req_tx_queues;
 954         u64 req_rx_queues;
 955         u64 req_rx_add_queues;
 956         u64 min_tx_entries_per_subcrq;
 957         u64 min_rx_add_entries_per_subcrq;
 958         u64 max_tx_entries_per_subcrq;
 959         u64 max_rx_add_entries_per_subcrq;
 960         u64 req_tx_entries_per_subcrq;
 961         u64 req_rx_add_entries_per_subcrq;
 962         u64 tcp_ip_offload;
 963         u64 promisc_requested;
 964         u64 promisc_supported;
 965         u64 min_mtu;
 966         u64 max_mtu;
 967         u64 req_mtu;
 968         u64 prev_mtu;
 969         u64 max_multicast_filters;
 970         u64 vlan_header_insertion;
 971         u64 rx_vlan_header_insertion;
 972         u64 max_tx_sg_entries;
 973         u64 rx_sg_supported;
 974         u64 rx_sg_requested;
 975         u64 opt_tx_comp_sub_queues;
 976         u64 opt_rx_comp_queues;
 977         u64 opt_rx_bufadd_q_per_rx_comp_q;
 978         u64 opt_tx_entries_per_subcrq;
 979         u64 opt_rxba_entries_per_subcrq;
 980         __be64 tx_rx_desc_req;
 981 #define MAX_MAP_ID      255
 982         DECLARE_BITMAP(map_ids, MAX_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
 989         u32 prev_rx_pool_size;
 990         u32 prev_tx_pool_size;
 991         u32 cur_rx_buf_sz;
 992         u32 prev_rx_buf_sz;
 993
 994         struct tasklet_struct tasklet;
 995         enum vnic_state state;
 996         /* Used for serialization of state field. When taking both state
 997          * and rwi locks, take state lock first.
 998          */
 999         spinlock_t state_lock;
1000         enum ibmvnic_reset_reason reset_reason;
1001         struct list_head rwi_list;
1002         /* Used for serialization of rwi_list. When taking both state
1003          * and rwi locks, take state lock first
1004          */
1005         spinlock_t rwi_lock;
1006         struct work_struct ibmvnic_reset;
1007         struct delayed_work ibmvnic_delayed_reset;
1008         unsigned long resetting;
1009         bool napi_enabled, from_passive_init;
1010         bool login_pending;
1011         /* last device reset time */
1012         unsigned long last_reset_time;
1013
1014         bool failover_pending;
1015         bool force_reset_recovery;
1016
1017         struct ibmvnic_tunables desired;
1018         struct ibmvnic_tunables fallback;
1019 };