drivers/net/ethernet/ibm/ibmvnic.h

   1 /**************************************************************************/
   2 /*                                                                        */
   3 /*  IBM System i and System p Virtual NIC Device Driver                   */
   4 /*  Copyright (C) 2014 IBM Corp.                                          */
   5 /*  Santiago Leon (santi_leon@yahoo.com)                                  */
   6 /*  Thomas Falcon (tlfalcon@linux.vnet.ibm.com)                           */
   7 /*  John Allen (jallen@linux.vnet.ibm.com)                                */
   8 /*                                                                        */
   9 /*  This program is free software; you can redistribute it and/or modify  */
  10 /*  it under the terms of the GNU General Public License as published by  */
  11 /*  the Free Software Foundation; either version 2 of the License, or     */
  12 /*  (at your option) any later version.                                   */
  13 /*                                                                        */
  14 /*  This program is distributed in the hope that it will be useful,       */
  15 /*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
  16 /*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
  17 /*  GNU General Public License for more details.                          */
  18 /*                                                                        */
  19 /*  You should have received a copy of the GNU General Public License     */
  20 /*  along with this program.                                              */
  21 /*                                                                        */
  22 /* This module contains the implementation of a virtual ethernet device   */
  23 /* for use with IBM i/pSeries LPAR Linux.  It utilizes the logical LAN    */
  24 /* option of the RS/6000 Platform Architecture to interface with virtual */
  25 /* ethernet NICs that are presented to the partition by the hypervisor.   */
  26 /*                                                                        */
  27 /**************************************************************************/
  28
  29 #define IBMVNIC_NAME            "ibmvnic"
  30 #define IBMVNIC_DRIVER_VERSION  "1.0.1"
  31 #define IBMVNIC_INVALID_MAP     -1
  32 #define IBMVNIC_STATS_TIMEOUT   1
  33 #define IBMVNIC_INIT_FAILED     2
  34
  35 /* basic structures plus 100 2k buffers */
  36 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT  610305
  37
  38 /* Initial module_parameters */
  39 #define IBMVNIC_RX_WEIGHT               16
  40 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
  41 #define IBMVNIC_BUFFS_PER_POOL  100
  42 #define IBMVNIC_MAX_TX_QUEUES   5
  43
  44 #define IBMVNIC_TSO_BUF_SZ      65536
  45 #define IBMVNIC_TSO_BUFS        64
  46
  47 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE)
  48 #define IBMVNIC_BUFFER_HLEN 500
  49
  50 struct ibmvnic_login_buffer {
  51         __be32 len;
  52         __be32 version;
  53 #define INITIAL_VERSION_LB 1
  54         __be32 num_txcomp_subcrqs;
  55         __be32 off_txcomp_subcrqs;
  56         __be32 num_rxcomp_subcrqs;
  57         __be32 off_rxcomp_subcrqs;
  58         __be32 login_rsp_ioba;
  59         __be32 login_rsp_len;
  60         __be32 client_data_offset;
  61         __be32 client_data_len;
  62 } __packed __aligned(8);
  63
  64 struct ibmvnic_login_rsp_buffer {
  65         __be32 len;
  66         __be32 version;
  67 #define INITIAL_VERSION_LRB 1
  68         __be32 num_txsubm_subcrqs;
  69         __be32 off_txsubm_subcrqs;
  70         __be32 num_rxadd_subcrqs;
  71         __be32 off_rxadd_subcrqs;
  72         __be32 off_rxadd_buff_size;
  73         __be32 num_supp_tx_desc;
  74         __be32 off_supp_tx_desc;
  75 } __packed __aligned(8);
  76
  77 struct ibmvnic_query_ip_offload_buffer {
  78         __be32 len;
  79         __be32 version;
  80 #define INITIAL_VERSION_IOB 1
  81         u8 ipv4_chksum;
  82         u8 ipv6_chksum;
  83         u8 tcp_ipv4_chksum;
  84         u8 tcp_ipv6_chksum;
  85         u8 udp_ipv4_chksum;
  86         u8 udp_ipv6_chksum;
  87         u8 large_tx_ipv4;
  88         u8 large_tx_ipv6;
  89         u8 large_rx_ipv4;
  90         u8 large_rx_ipv6;
  91         u8 reserved1[14];
  92         __be16 max_ipv4_header_size;
  93         __be16 max_ipv6_header_size;
  94         __be16 max_tcp_header_size;
  95         __be16 max_udp_header_size;
  96         __be32 max_large_tx_size;
  97         __be32 max_large_rx_size;
  98         u8 reserved2[16];
  99         u8 ipv6_extension_header;
 100 #define IPV6_EH_NOT_SUPPORTED   0x00
 101 #define IPV6_EH_SUPPORTED_LIM   0x01
 102 #define IPV6_EH_SUPPORTED       0xFF
 103         u8 tcp_pseudosum_req;
 104 #define TCP_PS_NOT_REQUIRED     0x00
 105 #define TCP_PS_REQUIRED         0x01
 106         u8 reserved3[30];
 107         __be16 num_ipv6_ext_headers;
 108         __be32 off_ipv6_ext_headers;
 109         u8 reserved4[154];
 110 } __packed __aligned(8);
 111
 112 struct ibmvnic_control_ip_offload_buffer {
 113         __be32 len;
 114         __be32 version;
 115 #define INITIAL_VERSION_IOB 1
 116         u8 ipv4_chksum;
 117         u8 ipv6_chksum;
 118         u8 tcp_ipv4_chksum;
 119         u8 tcp_ipv6_chksum;
 120         u8 udp_ipv4_chksum;
 121         u8 udp_ipv6_chksum;
 122         u8 large_tx_ipv4;
 123         u8 large_tx_ipv6;
 124         u8 bad_packet_rx;
 125         u8 large_rx_ipv4;
 126         u8 large_rx_ipv6;
 127         u8 reserved4[111];
 128 } __packed __aligned(8);
 129
 130 struct ibmvnic_fw_component {
 131         u8 name[48];
 132         __be32 trace_buff_size;
 133         u8 correlator;
 134         u8 trace_level;
 135         u8 parent_correlator;
 136         u8 error_check_level;
 137         u8 trace_on;
 138         u8 reserved[7];
 139         u8 description[192];
 140 } __packed __aligned(8);
 141
 142 struct ibmvnic_fw_trace_entry {
 143         __be32 trace_id;
 144         u8 num_valid_data;
 145         u8 reserved[3];
 146         __be64 pmc_registers;
 147         __be64 timebase;
 148         __be64 trace_data[5];
 149 } __packed __aligned(8);
 150
 151 struct ibmvnic_statistics {
 152         __be32 version;
 153         __be32 promiscuous;
 154         __be64 rx_packets;
 155         __be64 rx_bytes;
 156         __be64 tx_packets;
 157         __be64 tx_bytes;
 158         __be64 ucast_tx_packets;
 159         __be64 ucast_rx_packets;
 160         __be64 mcast_tx_packets;
 161         __be64 mcast_rx_packets;
 162         __be64 bcast_tx_packets;
 163         __be64 bcast_rx_packets;
 164         __be64 align_errors;
 165         __be64 fcs_errors;
 166         __be64 single_collision_frames;
 167         __be64 multi_collision_frames;
 168         __be64 sqe_test_errors;
 169         __be64 deferred_tx;
 170         __be64 late_collisions;
 171         __be64 excess_collisions;
 172         __be64 internal_mac_tx_errors;
 173         __be64 carrier_sense;
 174         __be64 too_long_frames;
 175         __be64 internal_mac_rx_errors;
 176         u8 reserved[72];
 177 } __packed __aligned(8);
 178
 179 #define NUM_TX_STATS 3
 180 struct ibmvnic_tx_queue_stats {
 181         u64 packets;
 182         u64 bytes;
 183         u64 dropped_packets;
 184 };
 185
 186 #define NUM_RX_STATS 3
 187 struct ibmvnic_rx_queue_stats {
 188         u64 packets;
 189         u64 bytes;
 190         u64 interrupts;
 191 };
 192
 193 struct ibmvnic_acl_buffer {
 194         __be32 len;
 195         __be32 version;
 196 #define INITIAL_VERSION_IOB 1
 197         u8 mac_acls_restrict;
 198         u8 vlan_acls_restrict;
 199         u8 reserved1[22];
 200         __be32 num_mac_addrs;
 201         __be32 offset_mac_addrs;
 202         __be32 num_vlan_ids;
 203         __be32 offset_vlan_ids;
 204         u8 reserved2[80];
 205 } __packed __aligned(8);
 206
 207 /* descriptors have been changed, how should this be defined?  1? 4? */
 208
 209 #define IBMVNIC_TX_DESC_VERSIONS 3
 210
 211 /* is this still needed? */
 212 struct ibmvnic_tx_comp_desc {
 213         u8 first;
 214         u8 num_comps;
 215         __be16 rcs[5];
 216         __be32 correlators[5];
 217 } __packed __aligned(8);
 218
 219 /* some flags that included in v0 descriptor, which is gone
 220  * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
 221  * and only in some offload_flags variable that doesn't seem
 222  * to be used anywhere, can probably be removed?
 223  */
 224
 225 #define IBMVNIC_TCP_CHKSUM              0x20
 226 #define IBMVNIC_UDP_CHKSUM              0x08
 227
 228 #define IBMVNIC_MAX_FRAGS_PER_CRQ 3
 229
 230 struct ibmvnic_tx_desc {
 231         u8 first;
 232         u8 type;
 233
 234 #define IBMVNIC_TX_DESC 0x10
 235         u8 n_crq_elem;
 236         u8 n_sge;
 237         u8 flags1;
 238 #define IBMVNIC_TX_COMP_NEEDED          0x80
 239 #define IBMVNIC_TX_CHKSUM_OFFLOAD       0x40
 240 #define IBMVNIC_TX_LSO                  0x20
 241 #define IBMVNIC_TX_PROT_TCP             0x10
 242 #define IBMVNIC_TX_PROT_UDP             0x08
 243 #define IBMVNIC_TX_PROT_IPV4            0x04
 244 #define IBMVNIC_TX_PROT_IPV6            0x02
 245 #define IBMVNIC_TX_VLAN_PRESENT         0x01
 246         u8 flags2;
 247 #define IBMVNIC_TX_VLAN_INSERT          0x80
 248         __be16 mss;
 249         u8 reserved[4];
 250         __be32 correlator;
 251         __be16 vlan_id;
 252         __be16 dma_reg;
 253         __be32 sge_len;
 254         __be64 ioba;
 255 } __packed __aligned(8);
 256
 257 struct ibmvnic_hdr_desc {
 258         u8 first;
 259         u8 type;
 260 #define IBMVNIC_HDR_DESC                0x11
 261         u8 len;
 262         u8 l2_len;
 263         __be16 l3_len;
 264         u8 l4_len;
 265         u8 flag;
 266         u8 data[24];
 267 } __packed __aligned(8);
 268
 269 struct ibmvnic_hdr_ext_desc {
 270         u8 first;
 271         u8 type;
 272 #define IBMVNIC_HDR_EXT_DESC            0x12
 273         u8 len;
 274         u8 data[29];
 275 } __packed __aligned(8);
 276
 277 struct ibmvnic_sge_desc {
 278         u8 first;
 279         u8 type;
 280 #define IBMVNIC_SGE_DESC                0x30
 281         __be16 sge1_dma_reg;
 282         __be32 sge1_len;
 283         __be64 sge1_ioba;
 284         __be16 reserved;
 285         __be16 sge2_dma_reg;
 286         __be32 sge2_len;
 287         __be64 sge2_ioba;
 288 } __packed __aligned(8);
 289
 290 struct ibmvnic_rx_comp_desc {
 291         u8 first;
 292         u8 flags;
 293 #define IBMVNIC_IP_CHKSUM_GOOD          0x80
 294 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD     0x40
 295 #define IBMVNIC_END_FRAME                       0x20
 296 #define IBMVNIC_EXACT_MC                        0x10
 297 #define IBMVNIC_VLAN_STRIPPED                   0x08
 298         __be16 off_frame_data;
 299         __be32 len;
 300         __be64 correlator;
 301         __be16 vlan_tci;
 302         __be16 rc;
 303         u8 reserved[12];
 304 } __packed __aligned(8);
 305
 306 struct ibmvnic_generic_scrq {
 307         u8 first;
 308         u8 reserved[31];
 309 } __packed __aligned(8);
 310
 311 struct ibmvnic_rx_buff_add_desc {
 312         u8 first;
 313         u8 reserved[7];
 314         __be64 correlator;
 315         __be32 ioba;
 316         u8 map_id;
 317         __be32 len:24;
 318         u8 reserved2[8];
 319 } __packed __aligned(8);
 320
 321 struct ibmvnic_rc {
 322         u8 code; /* one of enum ibmvnic_rc_codes */
 323         u8 detailed_data[3];
 324 } __packed __aligned(4);
 325
 326 struct ibmvnic_generic_crq {
 327         u8 first;
 328         u8 cmd;
 329         u8 params[10];
 330         struct ibmvnic_rc rc;
 331 } __packed __aligned(8);
 332
 333 struct ibmvnic_version_exchange {
 334         u8 first;
 335         u8 cmd;
 336         __be16 version;
 337 #define IBMVNIC_INITIAL_VERSION 1
 338         u8 reserved[8];
 339         struct ibmvnic_rc rc;
 340 } __packed __aligned(8);
 341
 342 struct ibmvnic_capability {
 343         u8 first;
 344         u8 cmd;
 345         __be16 capability; /* one of ibmvnic_capabilities */
 346         __be64 number;
 347         struct ibmvnic_rc rc;
 348 } __packed __aligned(8);
 349
 350 struct ibmvnic_login {
 351         u8 first;
 352         u8 cmd;
 353         u8 reserved[6];
 354         __be32 ioba;
 355         __be32 len;
 356 } __packed __aligned(8);
 357
 358 struct ibmvnic_phys_parms {
 359         u8 first;
 360         u8 cmd;
 361         u8 flags1;
 362 #define IBMVNIC_EXTERNAL_LOOPBACK       0x80
 363 #define IBMVNIC_INTERNAL_LOOPBACK       0x40
 364 #define IBMVNIC_PROMISC         0x20
 365 #define IBMVNIC_PHYS_LINK_ACTIVE        0x10
 366 #define IBMVNIC_AUTONEG_DUPLEX  0x08
 367 #define IBMVNIC_FULL_DUPLEX     0x04
 368 #define IBMVNIC_HALF_DUPLEX     0x02
 369 #define IBMVNIC_CAN_CHG_PHYS_PARMS      0x01
 370         u8 flags2;
 371 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
 372         __be32 speed;
 373 #define IBMVNIC_AUTONEG         0x80
 374 #define IBMVNIC_10MBPS          0x40
 375 #define IBMVNIC_100MBPS         0x20
 376 #define IBMVNIC_1GBPS           0x10
 377 #define IBMVNIC_10GBPS          0x08
 378         __be32 mtu;
 379         struct ibmvnic_rc rc;
 380 } __packed __aligned(8);
 381
 382 struct ibmvnic_logical_link_state {
 383         u8 first;
 384         u8 cmd;
 385         u8 link_state;
 386 #define IBMVNIC_LOGICAL_LNK_DN 0x00
 387 #define IBMVNIC_LOGICAL_LNK_UP 0x01
 388 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
 389         u8 reserved[9];
 390         struct ibmvnic_rc rc;
 391 } __packed __aligned(8);
 392
 393 struct ibmvnic_query_ip_offload {
 394         u8 first;
 395         u8 cmd;
 396         u8 reserved[2];
 397         __be32 len;
 398         __be32 ioba;
 399         struct ibmvnic_rc rc;
 400 } __packed __aligned(8);
 401
 402 struct ibmvnic_control_ip_offload {
 403         u8 first;
 404         u8 cmd;
 405         u8 reserved[2];
 406         __be32 ioba;
 407         __be32 len;
 408         struct ibmvnic_rc rc;
 409 } __packed __aligned(8);
 410
 411 struct ibmvnic_request_dump_size {
 412         u8 first;
 413         u8 cmd;
 414         u8 reserved[6];
 415         __be32 len;
 416         struct ibmvnic_rc rc;
 417 } __packed __aligned(8);
 418
 419 struct ibmvnic_request_dump {
 420         u8 first;
 421         u8 cmd;
 422         u8 reserved1[2];
 423         __be32 ioba;
 424         __be32 len;
 425         u8 reserved2[4];
 426 } __packed __aligned(8);
 427
 428 struct ibmvnic_request_dump_rsp {
 429         u8 first;
 430         u8 cmd;
 431         u8 reserved[6];
 432         __be32 dumped_len;
 433         struct ibmvnic_rc rc;
 434 } __packed __aligned(8);
 435
 436 struct ibmvnic_request_ras_comp_num {
 437         u8 first;
 438         u8 cmd;
 439         u8 reserved1[2];
 440         __be32 num_components;
 441         u8 reserved2[4];
 442         struct ibmvnic_rc rc;
 443 } __packed __aligned(8);
 444
 445 struct ibmvnic_request_ras_comps {
 446         u8 first;
 447         u8 cmd;
 448         u8 reserved[2];
 449         __be32 ioba;
 450         __be32 len;
 451         struct ibmvnic_rc rc;
 452 } __packed __aligned(8);
 453
 454 struct ibmvnic_control_ras {
 455         u8 first;
 456         u8 cmd;
 457         u8 correlator;
 458         u8 level;
 459         u8 op;
 460 #define IBMVNIC_TRACE_LEVEL     1
 461 #define IBMVNIC_ERROR_LEVEL     2
 462 #define IBMVNIC_TRACE_PAUSE     3
 463 #define IBMVNIC_TRACE_RESUME    4
 464 #define IBMVNIC_TRACE_ON                5
 465 #define IBMVNIC_TRACE_OFF               6
 466 #define IBMVNIC_CHG_TRACE_BUFF_SZ       7
 467         u8 trace_buff_sz[3];
 468         u8 reserved[4];
 469         struct ibmvnic_rc rc;
 470 } __packed __aligned(8);
 471
 472 struct ibmvnic_collect_fw_trace {
 473         u8 first;
 474         u8 cmd;
 475         u8 correlator;
 476         u8 reserved;
 477         __be32 ioba;
 478         __be32 len;
 479         struct ibmvnic_rc rc;
 480 } __packed __aligned(8);
 481
 482 struct ibmvnic_request_statistics {
 483         u8 first;
 484         u8 cmd;
 485         u8 flags;
 486 #define IBMVNIC_PHYSICAL_PORT   0x80
 487         u8 reserved1;
 488         __be32 ioba;
 489         __be32 len;
 490         u8 reserved[4];
 491 } __packed __aligned(8);
 492
 493 struct ibmvnic_request_debug_stats {
 494         u8 first;
 495         u8 cmd;
 496         u8 reserved[2];
 497         __be32 ioba;
 498         __be32 len;
 499         struct ibmvnic_rc rc;
 500 } __packed __aligned(8);
 501
 502 struct ibmvnic_error_indication {
 503         u8 first;
 504         u8 cmd;
 505         u8 flags;
 506 #define IBMVNIC_FATAL_ERROR     0x80
 507         u8 reserved1;
 508         __be32 error_id;
 509         __be32 detail_error_sz;
 510         __be16 error_cause;
 511         u8 reserved2[2];
 512 } __packed __aligned(8);
 513
 514 struct ibmvnic_request_error_info {
 515         u8 first;
 516         u8 cmd;
 517         u8 reserved[2];
 518         __be32 ioba;
 519         __be32 len;
 520         __be32 error_id;
 521 } __packed __aligned(8);
 522
 523 struct ibmvnic_request_error_rsp {
 524         u8 first;
 525         u8 cmd;
 526         u8 reserved[2];
 527         __be32 error_id;
 528         __be32 len;
 529         struct ibmvnic_rc rc;
 530 } __packed __aligned(8);
 531
 532 struct ibmvnic_link_state_indication {
 533         u8 first;
 534         u8 cmd;
 535         u8 reserved1[2];
 536         u8 phys_link_state;
 537         u8 logical_link_state;
 538         u8 reserved2[10];
 539 } __packed __aligned(8);
 540
 541 struct ibmvnic_change_mac_addr {
 542         u8 first;
 543         u8 cmd;
 544         u8 mac_addr[6];
 545         u8 reserved[4];
 546         struct ibmvnic_rc rc;
 547 } __packed __aligned(8);
 548
 549 struct ibmvnic_multicast_ctrl {
 550         u8 first;
 551         u8 cmd;
 552         u8 mac_addr[6];
 553         u8 flags;
 554 #define IBMVNIC_ENABLE_MC               0x80
 555 #define IBMVNIC_DISABLE_MC              0x40
 556 #define IBMVNIC_ENABLE_ALL              0x20
 557 #define IBMVNIC_DISABLE_ALL     0x10
 558         u8 reserved1;
 559         __be16 reserved2; /* was num_enabled_mc_addr; */
 560         struct ibmvnic_rc rc;
 561 } __packed __aligned(8);
 562
 563 struct ibmvnic_get_vpd_size {
 564         u8 first;
 565         u8 cmd;
 566         u8 reserved[14];
 567 } __packed __aligned(8);
 568
 569 struct ibmvnic_get_vpd_size_rsp {
 570         u8 first;
 571         u8 cmd;
 572         u8 reserved[2];
 573         __be64 len;
 574         struct ibmvnic_rc rc;
 575 } __packed __aligned(8);
 576
 577 struct ibmvnic_get_vpd {
 578         u8 first;
 579         u8 cmd;
 580         u8 reserved1[2];
 581         __be32 ioba;
 582         __be32 len;
 583         u8 reserved[4];
 584 } __packed __aligned(8);
 585
 586 struct ibmvnic_get_vpd_rsp {
 587         u8 first;
 588         u8 cmd;
 589         u8 reserved[10];
 590         struct ibmvnic_rc rc;
 591 } __packed __aligned(8);
 592
 593 struct ibmvnic_acl_change_indication {
 594         u8 first;
 595         u8 cmd;
 596         __be16 change_type;
 597 #define IBMVNIC_MAC_ACL 0
 598 #define IBMVNIC_VLAN_ACL 1
 599         u8 reserved[12];
 600 } __packed __aligned(8);
 601
 602 struct ibmvnic_acl_query {
 603         u8 first;
 604         u8 cmd;
 605         u8 reserved1[2];
 606         __be32 ioba;
 607         __be32 len;
 608         u8 reserved2[4];
 609 } __packed __aligned(8);
 610
 611 struct ibmvnic_tune {
 612         u8 first;
 613         u8 cmd;
 614         u8 reserved1[2];
 615         __be32 ioba;
 616         __be32 len;
 617         u8 reserved2[4];
 618 } __packed __aligned(8);
 619
 620 struct ibmvnic_request_map {
 621         u8 first;
 622         u8 cmd;
 623         u8 reserved1;
 624         u8 map_id;
 625         __be32 ioba;
 626         __be32 len;
 627         u8 reserved2[4];
 628 } __packed __aligned(8);
 629
 630 struct ibmvnic_request_map_rsp {
 631         u8 first;
 632         u8 cmd;
 633         u8 reserved1;
 634         u8 map_id;
 635         u8 reserved2[8];
 636         struct ibmvnic_rc rc;
 637 } __packed __aligned(8);
 638
 639 struct ibmvnic_request_unmap {
 640         u8 first;
 641         u8 cmd;
 642         u8 reserved1;
 643         u8 map_id;
 644         u8 reserved2[12];
 645 } __packed __aligned(8);
 646
 647 struct ibmvnic_request_unmap_rsp {
 648         u8 first;
 649         u8 cmd;
 650         u8 reserved1;
 651         u8 map_id;
 652         u8 reserved2[8];
 653         struct ibmvnic_rc rc;
 654 } __packed __aligned(8);
 655
 656 struct ibmvnic_query_map {
 657         u8 first;
 658         u8 cmd;
 659         u8 reserved[14];
 660 } __packed __aligned(8);
 661
 662 struct ibmvnic_query_map_rsp {
 663         u8 first;
 664         u8 cmd;
 665         u8 reserved;
 666         u8 page_size;
 667         __be32 tot_pages;
 668         __be32 free_pages;
 669         struct ibmvnic_rc rc;
 670 } __packed __aligned(8);
 671
 672 union ibmvnic_crq {
 673         struct ibmvnic_generic_crq generic;
 674         struct ibmvnic_version_exchange version_exchange;
 675         struct ibmvnic_version_exchange version_exchange_rsp;
 676         struct ibmvnic_capability query_capability;
 677         struct ibmvnic_capability query_capability_rsp;
 678         struct ibmvnic_capability request_capability;
 679         struct ibmvnic_capability request_capability_rsp;
 680         struct ibmvnic_login login;
 681         struct ibmvnic_generic_crq login_rsp;
 682         struct ibmvnic_phys_parms query_phys_parms;
 683         struct ibmvnic_phys_parms query_phys_parms_rsp;
 684         struct ibmvnic_phys_parms query_phys_capabilities;
 685         struct ibmvnic_phys_parms query_phys_capabilities_rsp;
 686         struct ibmvnic_phys_parms set_phys_parms;
 687         struct ibmvnic_phys_parms set_phys_parms_rsp;
 688         struct ibmvnic_logical_link_state logical_link_state;
 689         struct ibmvnic_logical_link_state logical_link_state_rsp;
 690         struct ibmvnic_query_ip_offload query_ip_offload;
 691         struct ibmvnic_query_ip_offload query_ip_offload_rsp;
 692         struct ibmvnic_control_ip_offload control_ip_offload;
 693         struct ibmvnic_control_ip_offload control_ip_offload_rsp;
 694         struct ibmvnic_request_dump_size request_dump_size;
 695         struct ibmvnic_request_dump_size request_dump_size_rsp;
 696         struct ibmvnic_request_dump request_dump;
 697         struct ibmvnic_request_dump_rsp request_dump_rsp;
 698         struct ibmvnic_request_ras_comp_num request_ras_comp_num;
 699         struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
 700         struct ibmvnic_request_ras_comps request_ras_comps;
 701         struct ibmvnic_request_ras_comps request_ras_comps_rsp;
 702         struct ibmvnic_control_ras control_ras;
 703         struct ibmvnic_control_ras control_ras_rsp;
 704         struct ibmvnic_collect_fw_trace collect_fw_trace;
 705         struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
 706         struct ibmvnic_request_statistics request_statistics;
 707         struct ibmvnic_generic_crq request_statistics_rsp;
 708         struct ibmvnic_request_debug_stats request_debug_stats;
 709         struct ibmvnic_request_debug_stats request_debug_stats_rsp;
 710         struct ibmvnic_error_indication error_indication;
 711         struct ibmvnic_request_error_info request_error_info;
 712         struct ibmvnic_request_error_rsp request_error_rsp;
 713         struct ibmvnic_link_state_indication link_state_indication;
 714         struct ibmvnic_change_mac_addr change_mac_addr;
 715         struct ibmvnic_change_mac_addr change_mac_addr_rsp;
 716         struct ibmvnic_multicast_ctrl multicast_ctrl;
 717         struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
 718         struct ibmvnic_get_vpd_size get_vpd_size;
 719         struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
 720         struct ibmvnic_get_vpd get_vpd;
 721         struct ibmvnic_get_vpd_rsp get_vpd_rsp;
 722         struct ibmvnic_acl_change_indication acl_change_indication;
 723         struct ibmvnic_acl_query acl_query;
 724         struct ibmvnic_generic_crq acl_query_rsp;
 725         struct ibmvnic_tune tune;
 726         struct ibmvnic_generic_crq tune_rsp;
 727         struct ibmvnic_request_map request_map;
 728         struct ibmvnic_request_map_rsp request_map_rsp;
 729         struct ibmvnic_request_unmap request_unmap;
 730         struct ibmvnic_request_unmap_rsp request_unmap_rsp;
 731         struct ibmvnic_query_map query_map;
 732         struct ibmvnic_query_map_rsp query_map_rsp;
 733 };
 734
 735 enum ibmvnic_rc_codes {
 736         SUCCESS = 0,
 737         PARTIALSUCCESS = 1,
 738         PERMISSION = 2,
 739         NOMEMORY = 3,
 740         PARAMETER = 4,
 741         UNKNOWNCOMMAND = 5,
 742         ABORTED = 6,
 743         INVALIDSTATE = 7,
 744         INVALIDIOBA = 8,
 745         INVALIDLENGTH = 9,
 746         UNSUPPORTEDOPTION = 10,
 747 };
 748
 749 enum ibmvnic_capabilities {
 750         MIN_TX_QUEUES = 1,
 751         MIN_RX_QUEUES = 2,
 752         MIN_RX_ADD_QUEUES = 3,
 753         MAX_TX_QUEUES = 4,
 754         MAX_RX_QUEUES = 5,
 755         MAX_RX_ADD_QUEUES = 6,
 756         REQ_TX_QUEUES = 7,
 757         REQ_RX_QUEUES = 8,
 758         REQ_RX_ADD_QUEUES = 9,
 759         MIN_TX_ENTRIES_PER_SUBCRQ = 10,
 760         MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
 761         MAX_TX_ENTRIES_PER_SUBCRQ = 12,
 762         MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
 763         REQ_TX_ENTRIES_PER_SUBCRQ = 14,
 764         REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
 765         TCP_IP_OFFLOAD = 16,
 766         PROMISC_REQUESTED = 17,
 767         PROMISC_SUPPORTED = 18,
 768         MIN_MTU = 19,
 769         MAX_MTU = 20,
 770         REQ_MTU = 21,
 771         MAX_MULTICAST_FILTERS = 22,
 772         VLAN_HEADER_INSERTION = 23,
 773         RX_VLAN_HEADER_INSERTION = 24,
 774         MAX_TX_SG_ENTRIES = 25,
 775         RX_SG_SUPPORTED = 26,
 776         RX_SG_REQUESTED = 27,
 777         OPT_TX_COMP_SUB_QUEUES = 28,
 778         OPT_RX_COMP_QUEUES = 29,
 779         OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
 780         OPT_TX_ENTRIES_PER_SUBCRQ = 31,
 781         OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
 782         TX_RX_DESC_REQ = 33,
 783 };
 784
 785 enum ibmvnic_error_cause {
 786         ADAPTER_PROBLEM = 0,
 787         BUS_PROBLEM = 1,
 788         FW_PROBLEM = 2,
 789         DD_PROBLEM = 3,
 790         EEH_RECOVERY = 4,
 791         FW_UPDATED = 5,
 792         LOW_MEMORY = 6,
 793 };
 794
 795 enum ibmvnic_commands {
 796         VERSION_EXCHANGE = 0x01,
 797         VERSION_EXCHANGE_RSP = 0x81,
 798         QUERY_CAPABILITY = 0x02,
 799         QUERY_CAPABILITY_RSP = 0x82,
 800         REQUEST_CAPABILITY = 0x03,
 801         REQUEST_CAPABILITY_RSP = 0x83,
 802         LOGIN = 0x04,
 803         LOGIN_RSP = 0x84,
 804         QUERY_PHYS_PARMS = 0x05,
 805         QUERY_PHYS_PARMS_RSP = 0x85,
 806         QUERY_PHYS_CAPABILITIES = 0x06,
 807         QUERY_PHYS_CAPABILITIES_RSP = 0x86,
 808         SET_PHYS_PARMS = 0x07,
 809         SET_PHYS_PARMS_RSP = 0x87,
 810         ERROR_INDICATION = 0x08,
 811         REQUEST_ERROR_INFO = 0x09,
 812         REQUEST_ERROR_RSP = 0x89,
 813         LOGICAL_LINK_STATE = 0x0C,
 814         LOGICAL_LINK_STATE_RSP = 0x8C,
 815         REQUEST_STATISTICS = 0x0D,
 816         REQUEST_STATISTICS_RSP = 0x8D,
 817         COLLECT_FW_TRACE = 0x11,
 818         COLLECT_FW_TRACE_RSP = 0x91,
 819         LINK_STATE_INDICATION = 0x12,
 820         CHANGE_MAC_ADDR = 0x13,
 821         CHANGE_MAC_ADDR_RSP = 0x93,
 822         MULTICAST_CTRL = 0x14,
 823         MULTICAST_CTRL_RSP = 0x94,
 824         GET_VPD_SIZE = 0x15,
 825         GET_VPD_SIZE_RSP = 0x95,
 826         GET_VPD = 0x16,
 827         GET_VPD_RSP = 0x96,
 828         TUNE = 0x17,
 829         TUNE_RSP = 0x97,
 830         QUERY_IP_OFFLOAD = 0x18,
 831         QUERY_IP_OFFLOAD_RSP = 0x98,
 832         CONTROL_IP_OFFLOAD = 0x19,
 833         CONTROL_IP_OFFLOAD_RSP = 0x99,
 834         ACL_CHANGE_INDICATION = 0x1A,
 835         ACL_QUERY = 0x1B,
 836         ACL_QUERY_RSP = 0x9B,
 837         QUERY_MAP = 0x1D,
 838         QUERY_MAP_RSP = 0x9D,
 839         REQUEST_MAP = 0x1E,
 840         REQUEST_MAP_RSP = 0x9E,
 841         REQUEST_UNMAP = 0x1F,
 842         REQUEST_UNMAP_RSP = 0x9F,
 843         VLAN_CTRL = 0x20,
 844         VLAN_CTRL_RSP = 0xA0,
 845 };
 846
 847 enum ibmvnic_crq_type {
 848         IBMVNIC_CRQ_CMD                 = 0x80,
 849         IBMVNIC_CRQ_CMD_RSP             = 0x80,
 850         IBMVNIC_CRQ_INIT_CMD            = 0xC0,
 851         IBMVNIC_CRQ_INIT_RSP            = 0xC0,
 852         IBMVNIC_CRQ_XPORT_EVENT         = 0xFF,
 853 };
 854
 855 enum ibmvfc_crq_format {
 856         IBMVNIC_CRQ_INIT                 = 0x01,
 857         IBMVNIC_CRQ_INIT_COMPLETE        = 0x02,
 858         IBMVNIC_PARTITION_MIGRATED       = 0x06,
 859         IBMVNIC_DEVICE_FAILOVER          = 0x08,
 860 };
 861
 862 struct ibmvnic_crq_queue {
 863         union ibmvnic_crq *msgs;
 864         int size, cur;
 865         dma_addr_t msg_token;
 866         spinlock_t lock;
 867 };
 868
 869 union sub_crq {
 870         struct ibmvnic_generic_scrq generic;
 871         struct ibmvnic_tx_comp_desc tx_comp;
 872         struct ibmvnic_tx_desc v1;
 873         struct ibmvnic_hdr_desc hdr;
 874         struct ibmvnic_hdr_ext_desc hdr_ext;
 875         struct ibmvnic_sge_desc sge;
 876         struct ibmvnic_rx_comp_desc rx_comp;
 877         struct ibmvnic_rx_buff_add_desc rx_add;
 878 };
 879
 880 struct ibmvnic_sub_crq_queue {
 881         union sub_crq *msgs;
 882         int size, cur;
 883         dma_addr_t msg_token;
 884         unsigned long crq_num;
 885         unsigned long hw_irq;
 886         unsigned int irq;
 887         unsigned int pool_index;
 888         int scrq_num;
 889         spinlock_t lock;
 890         struct sk_buff *rx_skb_top;
 891         struct ibmvnic_adapter *adapter;
 892         atomic_t used;
 893 };
 894
 895 struct ibmvnic_long_term_buff {
 896         unsigned char *buff;
 897         dma_addr_t addr;
 898         u64 size;
 899         u8 map_id;
 900 };
 901
 902 struct ibmvnic_tx_buff {
 903         struct sk_buff *skb;
 904         dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
 905         unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
 906         int index;
 907         int pool_index;
 908         bool last_frag;
 909         union sub_crq indir_arr[6];
 910         u8 hdr_data[140];
 911         dma_addr_t indir_dma;
 912 };
 913
 914 struct ibmvnic_tx_pool {
 915         struct ibmvnic_tx_buff *tx_buff;
 916         int *free_map;
 917         int consumer_index;
 918         int producer_index;
 919         wait_queue_head_t ibmvnic_tx_comp_q;
 920         struct task_struct *work_thread;
 921         struct ibmvnic_long_term_buff long_term_buff;
 922         struct ibmvnic_long_term_buff tso_ltb;
 923         int tso_index;
 924 };
 925
 926 struct ibmvnic_rx_buff {
 927         struct sk_buff *skb;
 928         dma_addr_t dma;
 929         unsigned char *data;
 930         int size;
 931         int pool_index;
 932 };
 933
 934 struct ibmvnic_rx_pool {
 935         struct ibmvnic_rx_buff *rx_buff;
 936         int size;
 937         int index;
 938         int buff_size;
 939         atomic_t available;
 940         int *free_map;
 941         int next_free;
 942         int next_alloc;
 943         int active;
 944         struct ibmvnic_long_term_buff long_term_buff;
 945 };
 946
 947 struct ibmvnic_error_buff {
 948         char *buff;
 949         dma_addr_t dma;
 950         int len;
 951         struct list_head list;
 952         __be32 error_id;
 953 };
 954
 955 struct ibmvnic_vpd {
 956         unsigned char *buff;
 957         dma_addr_t dma_addr;
 958         u64 len;
 959 };
 960
 961 enum vnic_state {VNIC_PROBING = 1,
 962                  VNIC_PROBED,
 963                  VNIC_OPENING,
 964                  VNIC_OPEN,
 965                  VNIC_CLOSING,
 966                  VNIC_CLOSED,
 967                  VNIC_REMOVING,
 968                  VNIC_REMOVED};
 969
 970 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
 971                            VNIC_RESET_MOBILITY,
 972                            VNIC_RESET_FATAL,
 973                            VNIC_RESET_NON_FATAL,
 974                            VNIC_RESET_TIMEOUT,
 975                            VNIC_RESET_CHANGE_PARAM};
 976
 977 struct ibmvnic_rwi {
 978         enum ibmvnic_reset_reason reset_reason;
 979         struct list_head list;
 980 };
 981
 982 struct ibmvnic_tunables {
 983         u64 rx_queues;
 984         u64 tx_queues;
 985         u64 rx_entries;
 986         u64 tx_entries;
 987         u64 mtu;
 988         struct sockaddr mac;
 989 };
 990
 991 struct ibmvnic_adapter {
 992         struct vio_dev *vdev;
 993         struct net_device *netdev;
 994         struct ibmvnic_crq_queue crq;
 995         u8 mac_addr[ETH_ALEN];
 996         struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
 997         dma_addr_t ip_offload_tok;
 998         struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
 999         dma_addr_t ip_offload_ctrl_tok;
1000         u32 msg_enable;
1001
1002         /* Vital Product Data (VPD) */
1003         struct ibmvnic_vpd *vpd;
1004         char fw_version[32];
1005
1006         /* Statistics */
1007         struct ibmvnic_statistics stats;
1008         dma_addr_t stats_token;
1009         struct completion stats_done;
1010         spinlock_t stats_lock;
1011         int replenish_no_mem;
1012         int replenish_add_buff_success;
1013         int replenish_add_buff_failure;
1014         int replenish_task_cycles;
1015         int tx_send_failed;
1016         int tx_map_failed;
1017
1018         struct ibmvnic_tx_queue_stats *tx_stats_buffers;
1019         struct ibmvnic_rx_queue_stats *rx_stats_buffers;
1020
1021         int phys_link_state;
1022         int logical_link_state;
1023
1024         /* login data */
1025         struct ibmvnic_login_buffer *login_buf;
1026         dma_addr_t login_buf_token;
1027         int login_buf_sz;
1028
1029         struct ibmvnic_login_rsp_buffer *login_rsp_buf;
1030         dma_addr_t login_rsp_buf_token;
1031         int login_rsp_buf_sz;
1032
1033         atomic_t running_cap_crqs;
1034         bool wait_capability;
1035
1036         struct ibmvnic_sub_crq_queue **tx_scrq;
1037         struct ibmvnic_sub_crq_queue **rx_scrq;
1038         bool renegotiate;
1039
1040         /* rx structs */
1041         struct napi_struct *napi;
1042         struct ibmvnic_rx_pool *rx_pool;
1043         u64 promisc;
1044
1045         struct ibmvnic_tx_pool *tx_pool;
1046         struct completion init_done;
1047         int init_done_rc;
1048
1049         struct list_head errors;
1050         spinlock_t error_list_lock;
1051
1052         struct completion fw_done;
1053         int fw_done_rc;
1054
1055         struct completion reset_done;
1056         int reset_done_rc;
1057         bool wait_for_reset;
1058
1059         /* partner capabilities */
1060         u64 min_tx_queues;
1061         u64 min_rx_queues;
1062         u64 min_rx_add_queues;
1063         u64 max_tx_queues;
1064         u64 max_rx_queues;
1065         u64 max_rx_add_queues;
1066         u64 req_tx_queues;
1067         u64 req_rx_queues;
1068         u64 req_rx_add_queues;
1069         u64 min_tx_entries_per_subcrq;
1070         u64 min_rx_add_entries_per_subcrq;
1071         u64 max_tx_entries_per_subcrq;
1072         u64 max_rx_add_entries_per_subcrq;
1073         u64 req_tx_entries_per_subcrq;
1074         u64 req_rx_add_entries_per_subcrq;
1075         u64 tcp_ip_offload;
1076         u64 promisc_requested;
1077         u64 promisc_supported;
1078         u64 min_mtu;
1079         u64 max_mtu;
1080         u64 req_mtu;
1081         u64 max_multicast_filters;
1082         u64 vlan_header_insertion;
1083         u64 rx_vlan_header_insertion;
1084         u64 max_tx_sg_entries;
1085         u64 rx_sg_supported;
1086         u64 rx_sg_requested;
1087         u64 opt_tx_comp_sub_queues;
1088         u64 opt_rx_comp_queues;
1089         u64 opt_rx_bufadd_q_per_rx_comp_q;
1090         u64 opt_tx_entries_per_subcrq;
1091         u64 opt_rxba_entries_per_subcrq;
1092         __be64 tx_rx_desc_req;
1093         u8 map_id;
1094
1095         struct tasklet_struct tasklet;
1096         enum vnic_state state;
1097         enum ibmvnic_reset_reason reset_reason;
1098         struct mutex reset_lock, rwi_lock;
1099         struct list_head rwi_list;
1100         struct work_struct ibmvnic_reset;
1101         bool resetting;
1102         bool napi_enabled, from_passive_init;
1103
1104         bool mac_change_pending;
1105
1106         struct ibmvnic_tunables desired;
1107         struct ibmvnic_tunables fallback;
1108 };