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