1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /**************************************************************************/ 3 /* */ 4 /* IBM System i and System p Virtual NIC Device Driver */ 5 /* Copyright (C) 2014 IBM Corp. */ 6 /* Santiago Leon (santi_leon@yahoo.com) */ 7 /* Thomas Falcon (tlfalcon@linux.vnet.ibm.com) */ 8 /* John Allen (jallen@linux.vnet.ibm.com) */ 9 /* */ 10 /* */ 11 /* This module contains the implementation of a virtual ethernet device */ 12 /* for use with IBM i/pSeries LPAR Linux. It utilizes the logical LAN */ 13 /* option of the RS/6000 Platform Architecture to interface with virtual */ 14 /* ethernet NICs that are presented to the partition by the hypervisor. */ 15 /* */ 16 /**************************************************************************/ 17 18 #define IBMVNIC_NAME "ibmvnic" 19 #define IBMVNIC_DRIVER_VERSION "1.0.1" 20 #define IBMVNIC_INVALID_MAP -1 21 #define IBMVNIC_STATS_TIMEOUT 1 22 #define IBMVNIC_INIT_FAILED 2 23 #define IBMVNIC_OPEN_FAILED 3 24 25 /* basic structures plus 100 2k buffers */ 26 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT 610305 27 28 /* Initial module_parameters */ 29 #define IBMVNIC_RX_WEIGHT 16 30 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */ 31 #define IBMVNIC_BUFFS_PER_POOL 100 32 #define IBMVNIC_MAX_QUEUES 16 33 #define IBMVNIC_MAX_QUEUE_SZ 4096 34 #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_dump_size { 416 u8 first; 417 u8 cmd; 418 u8 reserved[6]; 419 __be32 len; 420 struct ibmvnic_rc rc; 421 } __packed __aligned(8); 422 423 struct ibmvnic_request_dump { 424 u8 first; 425 u8 cmd; 426 u8 reserved1[2]; 427 __be32 ioba; 428 __be32 len; 429 u8 reserved2[4]; 430 } __packed __aligned(8); 431 432 struct ibmvnic_request_dump_rsp { 433 u8 first; 434 u8 cmd; 435 u8 reserved[6]; 436 __be32 dumped_len; 437 struct ibmvnic_rc rc; 438 } __packed __aligned(8); 439 440 struct ibmvnic_request_ras_comp_num { 441 u8 first; 442 u8 cmd; 443 u8 reserved1[2]; 444 __be32 num_components; 445 u8 reserved2[4]; 446 struct ibmvnic_rc rc; 447 } __packed __aligned(8); 448 449 struct ibmvnic_request_ras_comps { 450 u8 first; 451 u8 cmd; 452 u8 reserved[2]; 453 __be32 ioba; 454 __be32 len; 455 struct ibmvnic_rc rc; 456 } __packed __aligned(8); 457 458 struct ibmvnic_control_ras { 459 u8 first; 460 u8 cmd; 461 u8 correlator; 462 u8 level; 463 u8 op; 464 #define IBMVNIC_TRACE_LEVEL 1 465 #define IBMVNIC_ERROR_LEVEL 2 466 #define IBMVNIC_TRACE_PAUSE 3 467 #define IBMVNIC_TRACE_RESUME 4 468 #define IBMVNIC_TRACE_ON 5 469 #define IBMVNIC_TRACE_OFF 6 470 #define IBMVNIC_CHG_TRACE_BUFF_SZ 7 471 u8 trace_buff_sz[3]; 472 u8 reserved[4]; 473 struct ibmvnic_rc rc; 474 } __packed __aligned(8); 475 476 struct ibmvnic_collect_fw_trace { 477 u8 first; 478 u8 cmd; 479 u8 correlator; 480 u8 reserved; 481 __be32 ioba; 482 __be32 len; 483 struct ibmvnic_rc rc; 484 } __packed __aligned(8); 485 486 struct ibmvnic_request_statistics { 487 u8 first; 488 u8 cmd; 489 u8 flags; 490 #define IBMVNIC_PHYSICAL_PORT 0x80 491 u8 reserved1; 492 __be32 ioba; 493 __be32 len; 494 u8 reserved[4]; 495 } __packed __aligned(8); 496 497 struct ibmvnic_request_debug_stats { 498 u8 first; 499 u8 cmd; 500 u8 reserved[2]; 501 __be32 ioba; 502 __be32 len; 503 struct ibmvnic_rc rc; 504 } __packed __aligned(8); 505 506 struct ibmvnic_error_indication { 507 u8 first; 508 u8 cmd; 509 u8 flags; 510 #define IBMVNIC_FATAL_ERROR 0x80 511 u8 reserved1; 512 __be32 error_id; 513 __be32 detail_error_sz; 514 __be16 error_cause; 515 u8 reserved2[2]; 516 } __packed __aligned(8); 517 518 struct ibmvnic_link_state_indication { 519 u8 first; 520 u8 cmd; 521 u8 reserved1[2]; 522 u8 phys_link_state; 523 u8 logical_link_state; 524 u8 reserved2[10]; 525 } __packed __aligned(8); 526 527 struct ibmvnic_change_mac_addr { 528 u8 first; 529 u8 cmd; 530 u8 mac_addr[6]; 531 u8 reserved[4]; 532 struct ibmvnic_rc rc; 533 } __packed __aligned(8); 534 535 struct ibmvnic_multicast_ctrl { 536 u8 first; 537 u8 cmd; 538 u8 mac_addr[6]; 539 u8 flags; 540 #define IBMVNIC_ENABLE_MC 0x80 541 #define IBMVNIC_DISABLE_MC 0x40 542 #define IBMVNIC_ENABLE_ALL 0x20 543 #define IBMVNIC_DISABLE_ALL 0x10 544 u8 reserved1; 545 __be16 reserved2; /* was num_enabled_mc_addr; */ 546 struct ibmvnic_rc rc; 547 } __packed __aligned(8); 548 549 struct ibmvnic_get_vpd_size { 550 u8 first; 551 u8 cmd; 552 u8 reserved[14]; 553 } __packed __aligned(8); 554 555 struct ibmvnic_get_vpd_size_rsp { 556 u8 first; 557 u8 cmd; 558 u8 reserved[2]; 559 __be64 len; 560 struct ibmvnic_rc rc; 561 } __packed __aligned(8); 562 563 struct ibmvnic_get_vpd { 564 u8 first; 565 u8 cmd; 566 u8 reserved1[2]; 567 __be32 ioba; 568 __be32 len; 569 u8 reserved[4]; 570 } __packed __aligned(8); 571 572 struct ibmvnic_get_vpd_rsp { 573 u8 first; 574 u8 cmd; 575 u8 reserved[10]; 576 struct ibmvnic_rc rc; 577 } __packed __aligned(8); 578 579 struct ibmvnic_acl_change_indication { 580 u8 first; 581 u8 cmd; 582 __be16 change_type; 583 #define IBMVNIC_MAC_ACL 0 584 #define IBMVNIC_VLAN_ACL 1 585 u8 reserved[12]; 586 } __packed __aligned(8); 587 588 struct ibmvnic_acl_query { 589 u8 first; 590 u8 cmd; 591 u8 reserved1[2]; 592 __be32 ioba; 593 __be32 len; 594 u8 reserved2[4]; 595 } __packed __aligned(8); 596 597 struct ibmvnic_tune { 598 u8 first; 599 u8 cmd; 600 u8 reserved1[2]; 601 __be32 ioba; 602 __be32 len; 603 u8 reserved2[4]; 604 } __packed __aligned(8); 605 606 struct ibmvnic_request_map { 607 u8 first; 608 u8 cmd; 609 u8 reserved1; 610 u8 map_id; 611 __be32 ioba; 612 __be32 len; 613 u8 reserved2[4]; 614 } __packed __aligned(8); 615 616 struct ibmvnic_request_map_rsp { 617 u8 first; 618 u8 cmd; 619 u8 reserved1; 620 u8 map_id; 621 u8 reserved2[8]; 622 struct ibmvnic_rc rc; 623 } __packed __aligned(8); 624 625 struct ibmvnic_request_unmap { 626 u8 first; 627 u8 cmd; 628 u8 reserved1; 629 u8 map_id; 630 u8 reserved2[12]; 631 } __packed __aligned(8); 632 633 struct ibmvnic_request_unmap_rsp { 634 u8 first; 635 u8 cmd; 636 u8 reserved1; 637 u8 map_id; 638 u8 reserved2[8]; 639 struct ibmvnic_rc rc; 640 } __packed __aligned(8); 641 642 struct ibmvnic_query_map { 643 u8 first; 644 u8 cmd; 645 u8 reserved[14]; 646 } __packed __aligned(8); 647 648 struct ibmvnic_query_map_rsp { 649 u8 first; 650 u8 cmd; 651 u8 reserved; 652 u8 page_size; 653 __be32 tot_pages; 654 __be32 free_pages; 655 struct ibmvnic_rc rc; 656 } __packed __aligned(8); 657 658 union ibmvnic_crq { 659 struct ibmvnic_generic_crq generic; 660 struct ibmvnic_version_exchange version_exchange; 661 struct ibmvnic_version_exchange version_exchange_rsp; 662 struct ibmvnic_capability query_capability; 663 struct ibmvnic_capability query_capability_rsp; 664 struct ibmvnic_capability request_capability; 665 struct ibmvnic_capability request_capability_rsp; 666 struct ibmvnic_login login; 667 struct ibmvnic_generic_crq login_rsp; 668 struct ibmvnic_phys_parms query_phys_parms; 669 struct ibmvnic_phys_parms query_phys_parms_rsp; 670 struct ibmvnic_phys_parms query_phys_capabilities; 671 struct ibmvnic_phys_parms query_phys_capabilities_rsp; 672 struct ibmvnic_phys_parms set_phys_parms; 673 struct ibmvnic_phys_parms set_phys_parms_rsp; 674 struct ibmvnic_logical_link_state logical_link_state; 675 struct ibmvnic_logical_link_state logical_link_state_rsp; 676 struct ibmvnic_query_ip_offload query_ip_offload; 677 struct ibmvnic_query_ip_offload query_ip_offload_rsp; 678 struct ibmvnic_control_ip_offload control_ip_offload; 679 struct ibmvnic_control_ip_offload control_ip_offload_rsp; 680 struct ibmvnic_request_dump_size request_dump_size; 681 struct ibmvnic_request_dump_size request_dump_size_rsp; 682 struct ibmvnic_request_dump request_dump; 683 struct ibmvnic_request_dump_rsp request_dump_rsp; 684 struct ibmvnic_request_ras_comp_num request_ras_comp_num; 685 struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp; 686 struct ibmvnic_request_ras_comps request_ras_comps; 687 struct ibmvnic_request_ras_comps request_ras_comps_rsp; 688 struct ibmvnic_control_ras control_ras; 689 struct ibmvnic_control_ras control_ras_rsp; 690 struct ibmvnic_collect_fw_trace collect_fw_trace; 691 struct ibmvnic_collect_fw_trace collect_fw_trace_rsp; 692 struct ibmvnic_request_statistics request_statistics; 693 struct ibmvnic_generic_crq request_statistics_rsp; 694 struct ibmvnic_request_debug_stats request_debug_stats; 695 struct ibmvnic_request_debug_stats request_debug_stats_rsp; 696 struct ibmvnic_error_indication error_indication; 697 struct ibmvnic_link_state_indication link_state_indication; 698 struct ibmvnic_change_mac_addr change_mac_addr; 699 struct ibmvnic_change_mac_addr change_mac_addr_rsp; 700 struct ibmvnic_multicast_ctrl multicast_ctrl; 701 struct ibmvnic_multicast_ctrl multicast_ctrl_rsp; 702 struct ibmvnic_get_vpd_size get_vpd_size; 703 struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp; 704 struct ibmvnic_get_vpd get_vpd; 705 struct ibmvnic_get_vpd_rsp get_vpd_rsp; 706 struct ibmvnic_acl_change_indication acl_change_indication; 707 struct ibmvnic_acl_query acl_query; 708 struct ibmvnic_generic_crq acl_query_rsp; 709 struct ibmvnic_tune tune; 710 struct ibmvnic_generic_crq tune_rsp; 711 struct ibmvnic_request_map request_map; 712 struct ibmvnic_request_map_rsp request_map_rsp; 713 struct ibmvnic_request_unmap request_unmap; 714 struct ibmvnic_request_unmap_rsp request_unmap_rsp; 715 struct ibmvnic_query_map query_map; 716 struct ibmvnic_query_map_rsp query_map_rsp; 717 }; 718 719 enum ibmvnic_rc_codes { 720 SUCCESS = 0, 721 PARTIALSUCCESS = 1, 722 PERMISSION = 2, 723 NOMEMORY = 3, 724 PARAMETER = 4, 725 UNKNOWNCOMMAND = 5, 726 ABORTED = 6, 727 INVALIDSTATE = 7, 728 INVALIDIOBA = 8, 729 INVALIDLENGTH = 9, 730 UNSUPPORTEDOPTION = 10, 731 }; 732 733 enum ibmvnic_capabilities { 734 MIN_TX_QUEUES = 1, 735 MIN_RX_QUEUES = 2, 736 MIN_RX_ADD_QUEUES = 3, 737 MAX_TX_QUEUES = 4, 738 MAX_RX_QUEUES = 5, 739 MAX_RX_ADD_QUEUES = 6, 740 REQ_TX_QUEUES = 7, 741 REQ_RX_QUEUES = 8, 742 REQ_RX_ADD_QUEUES = 9, 743 MIN_TX_ENTRIES_PER_SUBCRQ = 10, 744 MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11, 745 MAX_TX_ENTRIES_PER_SUBCRQ = 12, 746 MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13, 747 REQ_TX_ENTRIES_PER_SUBCRQ = 14, 748 REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15, 749 TCP_IP_OFFLOAD = 16, 750 PROMISC_REQUESTED = 17, 751 PROMISC_SUPPORTED = 18, 752 MIN_MTU = 19, 753 MAX_MTU = 20, 754 REQ_MTU = 21, 755 MAX_MULTICAST_FILTERS = 22, 756 VLAN_HEADER_INSERTION = 23, 757 RX_VLAN_HEADER_INSERTION = 24, 758 MAX_TX_SG_ENTRIES = 25, 759 RX_SG_SUPPORTED = 26, 760 RX_SG_REQUESTED = 27, 761 OPT_TX_COMP_SUB_QUEUES = 28, 762 OPT_RX_COMP_QUEUES = 29, 763 OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30, 764 OPT_TX_ENTRIES_PER_SUBCRQ = 31, 765 OPT_RXBA_ENTRIES_PER_SUBCRQ = 32, 766 TX_RX_DESC_REQ = 33, 767 }; 768 769 enum ibmvnic_error_cause { 770 ADAPTER_PROBLEM = 0, 771 BUS_PROBLEM = 1, 772 FW_PROBLEM = 2, 773 DD_PROBLEM = 3, 774 EEH_RECOVERY = 4, 775 FW_UPDATED = 5, 776 LOW_MEMORY = 6, 777 }; 778 779 enum ibmvnic_commands { 780 VERSION_EXCHANGE = 0x01, 781 VERSION_EXCHANGE_RSP = 0x81, 782 QUERY_CAPABILITY = 0x02, 783 QUERY_CAPABILITY_RSP = 0x82, 784 REQUEST_CAPABILITY = 0x03, 785 REQUEST_CAPABILITY_RSP = 0x83, 786 LOGIN = 0x04, 787 LOGIN_RSP = 0x84, 788 QUERY_PHYS_PARMS = 0x05, 789 QUERY_PHYS_PARMS_RSP = 0x85, 790 QUERY_PHYS_CAPABILITIES = 0x06, 791 QUERY_PHYS_CAPABILITIES_RSP = 0x86, 792 SET_PHYS_PARMS = 0x07, 793 SET_PHYS_PARMS_RSP = 0x87, 794 ERROR_INDICATION = 0x08, 795 LOGICAL_LINK_STATE = 0x0C, 796 LOGICAL_LINK_STATE_RSP = 0x8C, 797 REQUEST_STATISTICS = 0x0D, 798 REQUEST_STATISTICS_RSP = 0x8D, 799 COLLECT_FW_TRACE = 0x11, 800 COLLECT_FW_TRACE_RSP = 0x91, 801 LINK_STATE_INDICATION = 0x12, 802 CHANGE_MAC_ADDR = 0x13, 803 CHANGE_MAC_ADDR_RSP = 0x93, 804 MULTICAST_CTRL = 0x14, 805 MULTICAST_CTRL_RSP = 0x94, 806 GET_VPD_SIZE = 0x15, 807 GET_VPD_SIZE_RSP = 0x95, 808 GET_VPD = 0x16, 809 GET_VPD_RSP = 0x96, 810 TUNE = 0x17, 811 TUNE_RSP = 0x97, 812 QUERY_IP_OFFLOAD = 0x18, 813 QUERY_IP_OFFLOAD_RSP = 0x98, 814 CONTROL_IP_OFFLOAD = 0x19, 815 CONTROL_IP_OFFLOAD_RSP = 0x99, 816 ACL_CHANGE_INDICATION = 0x1A, 817 ACL_QUERY = 0x1B, 818 ACL_QUERY_RSP = 0x9B, 819 QUERY_MAP = 0x1D, 820 QUERY_MAP_RSP = 0x9D, 821 REQUEST_MAP = 0x1E, 822 REQUEST_MAP_RSP = 0x9E, 823 REQUEST_UNMAP = 0x1F, 824 REQUEST_UNMAP_RSP = 0x9F, 825 VLAN_CTRL = 0x20, 826 VLAN_CTRL_RSP = 0xA0, 827 }; 828 829 enum ibmvnic_crq_type { 830 IBMVNIC_CRQ_CMD = 0x80, 831 IBMVNIC_CRQ_CMD_RSP = 0x80, 832 IBMVNIC_CRQ_INIT_CMD = 0xC0, 833 IBMVNIC_CRQ_INIT_RSP = 0xC0, 834 IBMVNIC_CRQ_XPORT_EVENT = 0xFF, 835 }; 836 837 enum ibmvfc_crq_format { 838 IBMVNIC_CRQ_INIT = 0x01, 839 IBMVNIC_CRQ_INIT_COMPLETE = 0x02, 840 IBMVNIC_PARTITION_MIGRATED = 0x06, 841 IBMVNIC_DEVICE_FAILOVER = 0x08, 842 }; 843 844 struct ibmvnic_crq_queue { 845 union ibmvnic_crq *msgs; 846 int size, cur; 847 dma_addr_t msg_token; 848 /* Used for serialization of msgs, cur */ 849 spinlock_t lock; 850 bool active; 851 char name[32]; 852 }; 853 854 union sub_crq { 855 struct ibmvnic_generic_scrq generic; 856 struct ibmvnic_tx_comp_desc tx_comp; 857 struct ibmvnic_tx_desc v1; 858 struct ibmvnic_hdr_desc hdr; 859 struct ibmvnic_hdr_ext_desc hdr_ext; 860 struct ibmvnic_sge_desc sge; 861 struct ibmvnic_rx_comp_desc rx_comp; 862 struct ibmvnic_rx_buff_add_desc rx_add; 863 }; 864 865 struct ibmvnic_ind_xmit_queue { 866 union sub_crq *indir_arr; 867 dma_addr_t indir_dma; 868 int index; 869 }; 870 871 struct ibmvnic_sub_crq_queue { 872 union sub_crq *msgs; 873 int size, cur; 874 dma_addr_t msg_token; 875 unsigned long crq_num; 876 unsigned long hw_irq; 877 unsigned int irq; 878 unsigned int pool_index; 879 int scrq_num; 880 /* Used for serialization of msgs, cur */ 881 spinlock_t lock; 882 struct sk_buff *rx_skb_top; 883 struct ibmvnic_adapter *adapter; 884 struct ibmvnic_ind_xmit_queue ind_buf; 885 atomic_t used; 886 char name[32]; 887 u64 handle; 888 } ____cacheline_aligned; 889 890 struct ibmvnic_long_term_buff { 891 unsigned char *buff; 892 dma_addr_t addr; 893 u64 size; 894 u8 map_id; 895 }; 896 897 struct ibmvnic_tx_buff { 898 struct sk_buff *skb; 899 int index; 900 int pool_index; 901 int num_entries; 902 }; 903 904 struct ibmvnic_tx_pool { 905 struct ibmvnic_tx_buff *tx_buff; 906 int *free_map; 907 int consumer_index; 908 int producer_index; 909 struct ibmvnic_long_term_buff long_term_buff; 910 int num_buffers; 911 int buf_size; 912 } ____cacheline_aligned; 913 914 struct ibmvnic_rx_buff { 915 struct sk_buff *skb; 916 dma_addr_t dma; 917 unsigned char *data; 918 int size; 919 int pool_index; 920 }; 921 922 struct ibmvnic_rx_pool { 923 struct ibmvnic_rx_buff *rx_buff; 924 int size; 925 int index; 926 int buff_size; 927 atomic_t available; 928 int *free_map; 929 int next_free; 930 int next_alloc; 931 int active; 932 struct ibmvnic_long_term_buff long_term_buff; 933 } ____cacheline_aligned; 934 935 struct ibmvnic_vpd { 936 unsigned char *buff; 937 dma_addr_t dma_addr; 938 u64 len; 939 }; 940 941 enum vnic_state {VNIC_PROBING = 1, 942 VNIC_PROBED, 943 VNIC_OPENING, 944 VNIC_OPEN, 945 VNIC_CLOSING, 946 VNIC_CLOSED, 947 VNIC_REMOVING, 948 VNIC_REMOVED}; 949 950 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1, 951 VNIC_RESET_MOBILITY, 952 VNIC_RESET_FATAL, 953 VNIC_RESET_NON_FATAL, 954 VNIC_RESET_TIMEOUT, 955 VNIC_RESET_CHANGE_PARAM}; 956 957 struct ibmvnic_rwi { 958 enum ibmvnic_reset_reason reset_reason; 959 struct list_head list; 960 }; 961 962 struct ibmvnic_tunables { 963 u64 rx_queues; 964 u64 tx_queues; 965 u64 rx_entries; 966 u64 tx_entries; 967 u64 mtu; 968 }; 969 970 struct ibmvnic_adapter { 971 struct vio_dev *vdev; 972 struct net_device *netdev; 973 struct ibmvnic_crq_queue crq; 974 u8 mac_addr[ETH_ALEN]; 975 struct ibmvnic_query_ip_offload_buffer ip_offload_buf; 976 dma_addr_t ip_offload_tok; 977 struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl; 978 dma_addr_t ip_offload_ctrl_tok; 979 u32 msg_enable; 980 u32 priv_flags; 981 982 /* Vital Product Data (VPD) */ 983 struct ibmvnic_vpd *vpd; 984 char fw_version[32]; 985 986 /* Statistics */ 987 struct ibmvnic_statistics stats; 988 dma_addr_t stats_token; 989 struct completion stats_done; 990 int replenish_no_mem; 991 int replenish_add_buff_success; 992 int replenish_add_buff_failure; 993 int replenish_task_cycles; 994 int tx_send_failed; 995 int tx_map_failed; 996 997 struct ibmvnic_tx_queue_stats *tx_stats_buffers; 998 struct ibmvnic_rx_queue_stats *rx_stats_buffers; 999 1000 int phys_link_state; 1001 int logical_link_state; 1002 1003 u32 speed; 1004 u8 duplex; 1005 1006 /* login data */ 1007 struct ibmvnic_login_buffer *login_buf; 1008 dma_addr_t login_buf_token; 1009 int login_buf_sz; 1010 1011 struct ibmvnic_login_rsp_buffer *login_rsp_buf; 1012 dma_addr_t login_rsp_buf_token; 1013 int login_rsp_buf_sz; 1014 1015 atomic_t running_cap_crqs; 1016 bool wait_capability; 1017 1018 struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned; 1019 struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned; 1020 1021 /* rx structs */ 1022 struct napi_struct *napi; 1023 struct ibmvnic_rx_pool *rx_pool; 1024 u64 promisc; 1025 1026 struct ibmvnic_tx_pool *tx_pool; 1027 struct ibmvnic_tx_pool *tso_pool; 1028 struct completion init_done; 1029 int init_done_rc; 1030 1031 struct completion fw_done; 1032 /* Used for serialization of device commands */ 1033 struct mutex fw_lock; 1034 int fw_done_rc; 1035 1036 struct completion reset_done; 1037 int reset_done_rc; 1038 bool wait_for_reset; 1039 1040 /* partner capabilities */ 1041 u64 min_tx_queues; 1042 u64 min_rx_queues; 1043 u64 min_rx_add_queues; 1044 u64 max_tx_queues; 1045 u64 max_rx_queues; 1046 u64 max_rx_add_queues; 1047 u64 req_tx_queues; 1048 u64 req_rx_queues; 1049 u64 req_rx_add_queues; 1050 u64 min_tx_entries_per_subcrq; 1051 u64 min_rx_add_entries_per_subcrq; 1052 u64 max_tx_entries_per_subcrq; 1053 u64 max_rx_add_entries_per_subcrq; 1054 u64 req_tx_entries_per_subcrq; 1055 u64 req_rx_add_entries_per_subcrq; 1056 u64 tcp_ip_offload; 1057 u64 promisc_requested; 1058 u64 promisc_supported; 1059 u64 min_mtu; 1060 u64 max_mtu; 1061 u64 req_mtu; 1062 u64 max_multicast_filters; 1063 u64 vlan_header_insertion; 1064 u64 rx_vlan_header_insertion; 1065 u64 max_tx_sg_entries; 1066 u64 rx_sg_supported; 1067 u64 rx_sg_requested; 1068 u64 opt_tx_comp_sub_queues; 1069 u64 opt_rx_comp_queues; 1070 u64 opt_rx_bufadd_q_per_rx_comp_q; 1071 u64 opt_tx_entries_per_subcrq; 1072 u64 opt_rxba_entries_per_subcrq; 1073 __be64 tx_rx_desc_req; 1074 u8 map_id; 1075 u32 num_active_rx_scrqs; 1076 u32 num_active_rx_pools; 1077 u32 num_active_rx_napi; 1078 u32 num_active_tx_scrqs; 1079 u32 num_active_tx_pools; 1080 u32 cur_rx_buf_sz; 1081 1082 struct tasklet_struct tasklet; 1083 enum vnic_state state; 1084 /* Used for serialization of state field. When taking both state 1085 * and rwi locks, take state lock first. 1086 */ 1087 spinlock_t state_lock; 1088 enum ibmvnic_reset_reason reset_reason; 1089 struct list_head rwi_list; 1090 /* Used for serialization of rwi_list. When taking both state 1091 * and rwi locks, take state lock first 1092 */ 1093 spinlock_t rwi_lock; 1094 struct work_struct ibmvnic_reset; 1095 struct delayed_work ibmvnic_delayed_reset; 1096 unsigned long resetting; 1097 bool napi_enabled, from_passive_init; 1098 bool login_pending; 1099 /* last device reset time */ 1100 unsigned long last_reset_time; 1101 1102 bool failover_pending; 1103 bool force_reset_recovery; 1104 1105 struct ibmvnic_tunables desired; 1106 struct ibmvnic_tunables fallback; 1107 }; 1108