1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /**************************************************************************/ 3 /* */ 4 /* IBM System i and System p Virtual NIC Device Driver */ 5 /* Copyright (C) 2014 IBM Corp. */ 6 /* Santiago Leon (santi_leon@yahoo.com) */ 7 /* Thomas Falcon (tlfalcon@linux.vnet.ibm.com) */ 8 /* John Allen (jallen@linux.vnet.ibm.com) */ 9 /* */ 10 /* */ 11 /* This module contains the implementation of a virtual ethernet device */ 12 /* for use with IBM i/pSeries LPAR Linux. It utilizes the logical LAN */ 13 /* option of the RS/6000 Platform Architecture to interface with virtual */ 14 /* ethernet NICs that are presented to the partition by the hypervisor. */ 15 /* */ 16 /**************************************************************************/ 17 18 #define IBMVNIC_NAME "ibmvnic" 19 #define IBMVNIC_DRIVER_VERSION "1.0.1" 20 #define IBMVNIC_INVALID_MAP -1 21 #define IBMVNIC_OPEN_FAILED 3 22 23 /* basic structures plus 100 2k buffers */ 24 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT 610305 25 26 /* Initial module_parameters */ 27 #define IBMVNIC_RX_WEIGHT 16 28 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */ 29 #define IBMVNIC_BUFFS_PER_POOL 100 30 #define IBMVNIC_MAX_QUEUES 16 31 #define IBMVNIC_MAX_QUEUE_SZ 4096 32 #define IBMVNIC_MAX_IND_DESCS 16 33 #define IBMVNIC_IND_ARR_SZ (IBMVNIC_MAX_IND_DESCS * 32) 34 35 #define IBMVNIC_TSO_BUF_SZ 65536 36 #define IBMVNIC_TSO_BUFS 64 37 #define IBMVNIC_TSO_POOL_MASK 0x80000000 38 39 #define IBMVNIC_MAX_LTB_SIZE ((1 << (MAX_ORDER - 1)) * PAGE_SIZE) 40 #define IBMVNIC_BUFFER_HLEN 500 41 42 #define IBMVNIC_RESET_DELAY 100 43 44 static const char ibmvnic_priv_flags[][ETH_GSTRING_LEN] = { 45 #define IBMVNIC_USE_SERVER_MAXES 0x1 46 "use-server-maxes" 47 }; 48 49 struct ibmvnic_login_buffer { 50 __be32 len; 51 __be32 version; 52 #define INITIAL_VERSION_LB 1 53 __be32 num_txcomp_subcrqs; 54 __be32 off_txcomp_subcrqs; 55 __be32 num_rxcomp_subcrqs; 56 __be32 off_rxcomp_subcrqs; 57 __be32 login_rsp_ioba; 58 __be32 login_rsp_len; 59 __be32 client_data_offset; 60 __be32 client_data_len; 61 } __packed __aligned(8); 62 63 struct ibmvnic_login_rsp_buffer { 64 __be32 len; 65 __be32 version; 66 #define INITIAL_VERSION_LRB 1 67 __be32 num_txsubm_subcrqs; 68 __be32 off_txsubm_subcrqs; 69 __be32 num_rxadd_subcrqs; 70 __be32 off_rxadd_subcrqs; 71 __be32 off_rxadd_buff_size; 72 __be32 num_supp_tx_desc; 73 __be32 off_supp_tx_desc; 74 } __packed __aligned(8); 75 76 struct ibmvnic_query_ip_offload_buffer { 77 __be32 len; 78 __be32 version; 79 #define INITIAL_VERSION_IOB 1 80 u8 ipv4_chksum; 81 u8 ipv6_chksum; 82 u8 tcp_ipv4_chksum; 83 u8 tcp_ipv6_chksum; 84 u8 udp_ipv4_chksum; 85 u8 udp_ipv6_chksum; 86 u8 large_tx_ipv4; 87 u8 large_tx_ipv6; 88 u8 large_rx_ipv4; 89 u8 large_rx_ipv6; 90 u8 reserved1[14]; 91 __be16 max_ipv4_header_size; 92 __be16 max_ipv6_header_size; 93 __be16 max_tcp_header_size; 94 __be16 max_udp_header_size; 95 __be32 max_large_tx_size; 96 __be32 max_large_rx_size; 97 u8 reserved2[16]; 98 u8 ipv6_extension_header; 99 #define IPV6_EH_NOT_SUPPORTED 0x00 100 #define IPV6_EH_SUPPORTED_LIM 0x01 101 #define IPV6_EH_SUPPORTED 0xFF 102 u8 tcp_pseudosum_req; 103 #define TCP_PS_NOT_REQUIRED 0x00 104 #define TCP_PS_REQUIRED 0x01 105 u8 reserved3[30]; 106 __be16 num_ipv6_ext_headers; 107 __be32 off_ipv6_ext_headers; 108 u8 reserved4[154]; 109 } __packed __aligned(8); 110 111 struct ibmvnic_control_ip_offload_buffer { 112 __be32 len; 113 __be32 version; 114 #define INITIAL_VERSION_IOB 1 115 u8 ipv4_chksum; 116 u8 ipv6_chksum; 117 u8 tcp_ipv4_chksum; 118 u8 tcp_ipv6_chksum; 119 u8 udp_ipv4_chksum; 120 u8 udp_ipv6_chksum; 121 u8 large_tx_ipv4; 122 u8 large_tx_ipv6; 123 u8 bad_packet_rx; 124 u8 large_rx_ipv4; 125 u8 large_rx_ipv6; 126 u8 reserved4[111]; 127 } __packed __aligned(8); 128 129 struct ibmvnic_fw_component { 130 u8 name[48]; 131 __be32 trace_buff_size; 132 u8 correlator; 133 u8 trace_level; 134 u8 parent_correlator; 135 u8 error_check_level; 136 u8 trace_on; 137 u8 reserved[7]; 138 u8 description[192]; 139 } __packed __aligned(8); 140 141 struct ibmvnic_fw_trace_entry { 142 __be32 trace_id; 143 u8 num_valid_data; 144 u8 reserved[3]; 145 __be64 pmc_registers; 146 __be64 timebase; 147 __be64 trace_data[5]; 148 } __packed __aligned(8); 149 150 struct ibmvnic_statistics { 151 __be32 version; 152 __be32 promiscuous; 153 __be64 rx_packets; 154 __be64 rx_bytes; 155 __be64 tx_packets; 156 __be64 tx_bytes; 157 __be64 ucast_tx_packets; 158 __be64 ucast_rx_packets; 159 __be64 mcast_tx_packets; 160 __be64 mcast_rx_packets; 161 __be64 bcast_tx_packets; 162 __be64 bcast_rx_packets; 163 __be64 align_errors; 164 __be64 fcs_errors; 165 __be64 single_collision_frames; 166 __be64 multi_collision_frames; 167 __be64 sqe_test_errors; 168 __be64 deferred_tx; 169 __be64 late_collisions; 170 __be64 excess_collisions; 171 __be64 internal_mac_tx_errors; 172 __be64 carrier_sense; 173 __be64 too_long_frames; 174 __be64 internal_mac_rx_errors; 175 u8 reserved[72]; 176 } __packed __aligned(8); 177 178 #define NUM_TX_STATS 3 179 struct ibmvnic_tx_queue_stats { 180 u64 packets; 181 u64 bytes; 182 u64 dropped_packets; 183 }; 184 185 #define NUM_RX_STATS 3 186 struct ibmvnic_rx_queue_stats { 187 u64 packets; 188 u64 bytes; 189 u64 interrupts; 190 }; 191 192 struct ibmvnic_acl_buffer { 193 __be32 len; 194 __be32 version; 195 #define INITIAL_VERSION_IOB 1 196 u8 mac_acls_restrict; 197 u8 vlan_acls_restrict; 198 u8 reserved1[22]; 199 __be32 num_mac_addrs; 200 __be32 offset_mac_addrs; 201 __be32 num_vlan_ids; 202 __be32 offset_vlan_ids; 203 u8 reserved2[80]; 204 } __packed __aligned(8); 205 206 /* descriptors have been changed, how should this be defined? 1? 4? */ 207 208 #define IBMVNIC_TX_DESC_VERSIONS 3 209 210 /* is this still needed? */ 211 struct ibmvnic_tx_comp_desc { 212 u8 first; 213 u8 num_comps; 214 __be16 rcs[5]; 215 __be32 correlators[5]; 216 } __packed __aligned(8); 217 218 /* some flags that included in v0 descriptor, which is gone 219 * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM 220 * and only in some offload_flags variable that doesn't seem 221 * to be used anywhere, can probably be removed? 222 */ 223 224 #define IBMVNIC_TCP_CHKSUM 0x20 225 #define IBMVNIC_UDP_CHKSUM 0x08 226 227 struct ibmvnic_tx_desc { 228 u8 first; 229 u8 type; 230 231 #define IBMVNIC_TX_DESC 0x10 232 u8 n_crq_elem; 233 u8 n_sge; 234 u8 flags1; 235 #define IBMVNIC_TX_COMP_NEEDED 0x80 236 #define IBMVNIC_TX_CHKSUM_OFFLOAD 0x40 237 #define IBMVNIC_TX_LSO 0x20 238 #define IBMVNIC_TX_PROT_TCP 0x10 239 #define IBMVNIC_TX_PROT_UDP 0x08 240 #define IBMVNIC_TX_PROT_IPV4 0x04 241 #define IBMVNIC_TX_PROT_IPV6 0x02 242 #define IBMVNIC_TX_VLAN_PRESENT 0x01 243 u8 flags2; 244 #define IBMVNIC_TX_VLAN_INSERT 0x80 245 __be16 mss; 246 u8 reserved[4]; 247 __be32 correlator; 248 __be16 vlan_id; 249 __be16 dma_reg; 250 __be32 sge_len; 251 __be64 ioba; 252 } __packed __aligned(8); 253 254 struct ibmvnic_hdr_desc { 255 u8 first; 256 u8 type; 257 #define IBMVNIC_HDR_DESC 0x11 258 u8 len; 259 u8 l2_len; 260 __be16 l3_len; 261 u8 l4_len; 262 u8 flag; 263 u8 data[24]; 264 } __packed __aligned(8); 265 266 struct ibmvnic_hdr_ext_desc { 267 u8 first; 268 u8 type; 269 #define IBMVNIC_HDR_EXT_DESC 0x12 270 u8 len; 271 u8 data[29]; 272 } __packed __aligned(8); 273 274 struct ibmvnic_sge_desc { 275 u8 first; 276 u8 type; 277 #define IBMVNIC_SGE_DESC 0x30 278 __be16 sge1_dma_reg; 279 __be32 sge1_len; 280 __be64 sge1_ioba; 281 __be16 reserved; 282 __be16 sge2_dma_reg; 283 __be32 sge2_len; 284 __be64 sge2_ioba; 285 } __packed __aligned(8); 286 287 struct ibmvnic_rx_comp_desc { 288 u8 first; 289 u8 flags; 290 #define IBMVNIC_IP_CHKSUM_GOOD 0x80 291 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD 0x40 292 #define IBMVNIC_END_FRAME 0x20 293 #define IBMVNIC_EXACT_MC 0x10 294 #define IBMVNIC_VLAN_STRIPPED 0x08 295 __be16 off_frame_data; 296 __be32 len; 297 __be64 correlator; 298 __be16 vlan_tci; 299 __be16 rc; 300 u8 reserved[12]; 301 } __packed __aligned(8); 302 303 struct ibmvnic_generic_scrq { 304 u8 first; 305 u8 reserved[31]; 306 } __packed __aligned(8); 307 308 struct ibmvnic_rx_buff_add_desc { 309 u8 first; 310 u8 reserved[7]; 311 __be64 correlator; 312 __be32 ioba; 313 u8 map_id; 314 __be32 len:24; 315 u8 reserved2[8]; 316 } __packed __aligned(8); 317 318 struct ibmvnic_rc { 319 u8 code; /* one of enum ibmvnic_rc_codes */ 320 u8 detailed_data[3]; 321 } __packed __aligned(4); 322 323 struct ibmvnic_generic_crq { 324 u8 first; 325 u8 cmd; 326 u8 params[10]; 327 struct ibmvnic_rc rc; 328 } __packed __aligned(8); 329 330 struct ibmvnic_version_exchange { 331 u8 first; 332 u8 cmd; 333 __be16 version; 334 #define IBMVNIC_INITIAL_VERSION 1 335 u8 reserved[8]; 336 struct ibmvnic_rc rc; 337 } __packed __aligned(8); 338 339 struct ibmvnic_capability { 340 u8 first; 341 u8 cmd; 342 __be16 capability; /* one of ibmvnic_capabilities */ 343 __be64 number; 344 struct ibmvnic_rc rc; 345 } __packed __aligned(8); 346 347 struct ibmvnic_login { 348 u8 first; 349 u8 cmd; 350 u8 reserved[6]; 351 __be32 ioba; 352 __be32 len; 353 } __packed __aligned(8); 354 355 struct ibmvnic_phys_parms { 356 u8 first; 357 u8 cmd; 358 u8 flags1; 359 #define IBMVNIC_EXTERNAL_LOOPBACK 0x80 360 #define IBMVNIC_INTERNAL_LOOPBACK 0x40 361 #define IBMVNIC_PROMISC 0x20 362 #define IBMVNIC_PHYS_LINK_ACTIVE 0x10 363 #define IBMVNIC_AUTONEG_DUPLEX 0x08 364 #define IBMVNIC_FULL_DUPLEX 0x04 365 #define IBMVNIC_HALF_DUPLEX 0x02 366 #define IBMVNIC_CAN_CHG_PHYS_PARMS 0x01 367 u8 flags2; 368 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80 369 __be32 speed; 370 #define IBMVNIC_AUTONEG 0x80000000 371 #define IBMVNIC_10MBPS 0x40000000 372 #define IBMVNIC_100MBPS 0x20000000 373 #define IBMVNIC_1GBPS 0x10000000 374 #define IBMVNIC_10GBPS 0x08000000 375 #define IBMVNIC_40GBPS 0x04000000 376 #define IBMVNIC_100GBPS 0x02000000 377 #define IBMVNIC_25GBPS 0x01000000 378 #define IBMVNIC_50GBPS 0x00800000 379 #define IBMVNIC_200GBPS 0x00400000 380 __be32 mtu; 381 struct ibmvnic_rc rc; 382 } __packed __aligned(8); 383 384 struct ibmvnic_logical_link_state { 385 u8 first; 386 u8 cmd; 387 u8 link_state; 388 #define IBMVNIC_LOGICAL_LNK_DN 0x00 389 #define IBMVNIC_LOGICAL_LNK_UP 0x01 390 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff 391 u8 reserved[9]; 392 struct ibmvnic_rc rc; 393 } __packed __aligned(8); 394 395 struct ibmvnic_query_ip_offload { 396 u8 first; 397 u8 cmd; 398 u8 reserved[2]; 399 __be32 len; 400 __be32 ioba; 401 struct ibmvnic_rc rc; 402 } __packed __aligned(8); 403 404 struct ibmvnic_control_ip_offload { 405 u8 first; 406 u8 cmd; 407 u8 reserved[2]; 408 __be32 ioba; 409 __be32 len; 410 struct ibmvnic_rc rc; 411 } __packed __aligned(8); 412 413 struct ibmvnic_request_statistics { 414 u8 first; 415 u8 cmd; 416 u8 flags; 417 #define IBMVNIC_PHYSICAL_PORT 0x80 418 u8 reserved1; 419 __be32 ioba; 420 __be32 len; 421 u8 reserved[4]; 422 } __packed __aligned(8); 423 424 struct ibmvnic_error_indication { 425 u8 first; 426 u8 cmd; 427 u8 flags; 428 #define IBMVNIC_FATAL_ERROR 0x80 429 u8 reserved1; 430 __be32 error_id; 431 __be32 detail_error_sz; 432 __be16 error_cause; 433 u8 reserved2[2]; 434 } __packed __aligned(8); 435 436 struct ibmvnic_link_state_indication { 437 u8 first; 438 u8 cmd; 439 u8 reserved1[2]; 440 u8 phys_link_state; 441 u8 logical_link_state; 442 u8 reserved2[10]; 443 } __packed __aligned(8); 444 445 struct ibmvnic_change_mac_addr { 446 u8 first; 447 u8 cmd; 448 u8 mac_addr[6]; 449 u8 reserved[4]; 450 struct ibmvnic_rc rc; 451 } __packed __aligned(8); 452 453 struct ibmvnic_multicast_ctrl { 454 u8 first; 455 u8 cmd; 456 u8 mac_addr[6]; 457 u8 flags; 458 #define IBMVNIC_ENABLE_MC 0x80 459 #define IBMVNIC_DISABLE_MC 0x40 460 #define IBMVNIC_ENABLE_ALL 0x20 461 #define IBMVNIC_DISABLE_ALL 0x10 462 u8 reserved1; 463 __be16 reserved2; /* was num_enabled_mc_addr; */ 464 struct ibmvnic_rc rc; 465 } __packed __aligned(8); 466 467 struct ibmvnic_get_vpd_size { 468 u8 first; 469 u8 cmd; 470 u8 reserved[14]; 471 } __packed __aligned(8); 472 473 struct ibmvnic_get_vpd_size_rsp { 474 u8 first; 475 u8 cmd; 476 u8 reserved[2]; 477 __be64 len; 478 struct ibmvnic_rc rc; 479 } __packed __aligned(8); 480 481 struct ibmvnic_get_vpd { 482 u8 first; 483 u8 cmd; 484 u8 reserved1[2]; 485 __be32 ioba; 486 __be32 len; 487 u8 reserved[4]; 488 } __packed __aligned(8); 489 490 struct ibmvnic_get_vpd_rsp { 491 u8 first; 492 u8 cmd; 493 u8 reserved[10]; 494 struct ibmvnic_rc rc; 495 } __packed __aligned(8); 496 497 struct ibmvnic_acl_change_indication { 498 u8 first; 499 u8 cmd; 500 __be16 change_type; 501 #define IBMVNIC_MAC_ACL 0 502 #define IBMVNIC_VLAN_ACL 1 503 u8 reserved[12]; 504 } __packed __aligned(8); 505 506 struct ibmvnic_acl_query { 507 u8 first; 508 u8 cmd; 509 u8 reserved1[2]; 510 __be32 ioba; 511 __be32 len; 512 u8 reserved2[4]; 513 } __packed __aligned(8); 514 515 struct ibmvnic_tune { 516 u8 first; 517 u8 cmd; 518 u8 reserved1[2]; 519 __be32 ioba; 520 __be32 len; 521 u8 reserved2[4]; 522 } __packed __aligned(8); 523 524 struct ibmvnic_request_map { 525 u8 first; 526 u8 cmd; 527 u8 reserved1; 528 u8 map_id; 529 __be32 ioba; 530 __be32 len; 531 u8 reserved2[4]; 532 } __packed __aligned(8); 533 534 struct ibmvnic_request_map_rsp { 535 u8 first; 536 u8 cmd; 537 u8 reserved1; 538 u8 map_id; 539 u8 reserved2[8]; 540 struct ibmvnic_rc rc; 541 } __packed __aligned(8); 542 543 struct ibmvnic_request_unmap { 544 u8 first; 545 u8 cmd; 546 u8 reserved1; 547 u8 map_id; 548 u8 reserved2[12]; 549 } __packed __aligned(8); 550 551 struct ibmvnic_request_unmap_rsp { 552 u8 first; 553 u8 cmd; 554 u8 reserved1; 555 u8 map_id; 556 u8 reserved2[8]; 557 struct ibmvnic_rc rc; 558 } __packed __aligned(8); 559 560 struct ibmvnic_query_map { 561 u8 first; 562 u8 cmd; 563 u8 reserved[14]; 564 } __packed __aligned(8); 565 566 struct ibmvnic_query_map_rsp { 567 u8 first; 568 u8 cmd; 569 u8 reserved; 570 u8 page_size; 571 __be32 tot_pages; 572 __be32 free_pages; 573 struct ibmvnic_rc rc; 574 } __packed __aligned(8); 575 576 union ibmvnic_crq { 577 struct ibmvnic_generic_crq generic; 578 struct ibmvnic_version_exchange version_exchange; 579 struct ibmvnic_version_exchange version_exchange_rsp; 580 struct ibmvnic_capability query_capability; 581 struct ibmvnic_capability query_capability_rsp; 582 struct ibmvnic_capability request_capability; 583 struct ibmvnic_capability request_capability_rsp; 584 struct ibmvnic_login login; 585 struct ibmvnic_generic_crq login_rsp; 586 struct ibmvnic_phys_parms query_phys_parms; 587 struct ibmvnic_phys_parms query_phys_parms_rsp; 588 struct ibmvnic_phys_parms query_phys_capabilities; 589 struct ibmvnic_phys_parms query_phys_capabilities_rsp; 590 struct ibmvnic_phys_parms set_phys_parms; 591 struct ibmvnic_phys_parms set_phys_parms_rsp; 592 struct ibmvnic_logical_link_state logical_link_state; 593 struct ibmvnic_logical_link_state logical_link_state_rsp; 594 struct ibmvnic_query_ip_offload query_ip_offload; 595 struct ibmvnic_query_ip_offload query_ip_offload_rsp; 596 struct ibmvnic_control_ip_offload control_ip_offload; 597 struct ibmvnic_control_ip_offload control_ip_offload_rsp; 598 struct ibmvnic_request_statistics request_statistics; 599 struct ibmvnic_generic_crq request_statistics_rsp; 600 struct ibmvnic_error_indication error_indication; 601 struct ibmvnic_link_state_indication link_state_indication; 602 struct ibmvnic_change_mac_addr change_mac_addr; 603 struct ibmvnic_change_mac_addr change_mac_addr_rsp; 604 struct ibmvnic_multicast_ctrl multicast_ctrl; 605 struct ibmvnic_multicast_ctrl multicast_ctrl_rsp; 606 struct ibmvnic_get_vpd_size get_vpd_size; 607 struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp; 608 struct ibmvnic_get_vpd get_vpd; 609 struct ibmvnic_get_vpd_rsp get_vpd_rsp; 610 struct ibmvnic_acl_change_indication acl_change_indication; 611 struct ibmvnic_acl_query acl_query; 612 struct ibmvnic_generic_crq acl_query_rsp; 613 struct ibmvnic_tune tune; 614 struct ibmvnic_generic_crq tune_rsp; 615 struct ibmvnic_request_map request_map; 616 struct ibmvnic_request_map_rsp request_map_rsp; 617 struct ibmvnic_request_unmap request_unmap; 618 struct ibmvnic_request_unmap_rsp request_unmap_rsp; 619 struct ibmvnic_query_map query_map; 620 struct ibmvnic_query_map_rsp query_map_rsp; 621 }; 622 623 enum ibmvnic_rc_codes { 624 SUCCESS = 0, 625 PARTIALSUCCESS = 1, 626 PERMISSION = 2, 627 NOMEMORY = 3, 628 PARAMETER = 4, 629 UNKNOWNCOMMAND = 5, 630 ABORTED = 6, 631 INVALIDSTATE = 7, 632 INVALIDIOBA = 8, 633 INVALIDLENGTH = 9, 634 UNSUPPORTEDOPTION = 10, 635 }; 636 637 enum ibmvnic_capabilities { 638 MIN_TX_QUEUES = 1, 639 MIN_RX_QUEUES = 2, 640 MIN_RX_ADD_QUEUES = 3, 641 MAX_TX_QUEUES = 4, 642 MAX_RX_QUEUES = 5, 643 MAX_RX_ADD_QUEUES = 6, 644 REQ_TX_QUEUES = 7, 645 REQ_RX_QUEUES = 8, 646 REQ_RX_ADD_QUEUES = 9, 647 MIN_TX_ENTRIES_PER_SUBCRQ = 10, 648 MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11, 649 MAX_TX_ENTRIES_PER_SUBCRQ = 12, 650 MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13, 651 REQ_TX_ENTRIES_PER_SUBCRQ = 14, 652 REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15, 653 TCP_IP_OFFLOAD = 16, 654 PROMISC_REQUESTED = 17, 655 PROMISC_SUPPORTED = 18, 656 MIN_MTU = 19, 657 MAX_MTU = 20, 658 REQ_MTU = 21, 659 MAX_MULTICAST_FILTERS = 22, 660 VLAN_HEADER_INSERTION = 23, 661 RX_VLAN_HEADER_INSERTION = 24, 662 MAX_TX_SG_ENTRIES = 25, 663 RX_SG_SUPPORTED = 26, 664 RX_SG_REQUESTED = 27, 665 OPT_TX_COMP_SUB_QUEUES = 28, 666 OPT_RX_COMP_QUEUES = 29, 667 OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30, 668 OPT_TX_ENTRIES_PER_SUBCRQ = 31, 669 OPT_RXBA_ENTRIES_PER_SUBCRQ = 32, 670 TX_RX_DESC_REQ = 33, 671 }; 672 673 enum ibmvnic_error_cause { 674 ADAPTER_PROBLEM = 0, 675 BUS_PROBLEM = 1, 676 FW_PROBLEM = 2, 677 DD_PROBLEM = 3, 678 EEH_RECOVERY = 4, 679 FW_UPDATED = 5, 680 LOW_MEMORY = 6, 681 }; 682 683 enum ibmvnic_commands { 684 VERSION_EXCHANGE = 0x01, 685 VERSION_EXCHANGE_RSP = 0x81, 686 QUERY_CAPABILITY = 0x02, 687 QUERY_CAPABILITY_RSP = 0x82, 688 REQUEST_CAPABILITY = 0x03, 689 REQUEST_CAPABILITY_RSP = 0x83, 690 LOGIN = 0x04, 691 LOGIN_RSP = 0x84, 692 QUERY_PHYS_PARMS = 0x05, 693 QUERY_PHYS_PARMS_RSP = 0x85, 694 QUERY_PHYS_CAPABILITIES = 0x06, 695 QUERY_PHYS_CAPABILITIES_RSP = 0x86, 696 SET_PHYS_PARMS = 0x07, 697 SET_PHYS_PARMS_RSP = 0x87, 698 ERROR_INDICATION = 0x08, 699 LOGICAL_LINK_STATE = 0x0C, 700 LOGICAL_LINK_STATE_RSP = 0x8C, 701 REQUEST_STATISTICS = 0x0D, 702 REQUEST_STATISTICS_RSP = 0x8D, 703 COLLECT_FW_TRACE = 0x11, 704 COLLECT_FW_TRACE_RSP = 0x91, 705 LINK_STATE_INDICATION = 0x12, 706 CHANGE_MAC_ADDR = 0x13, 707 CHANGE_MAC_ADDR_RSP = 0x93, 708 MULTICAST_CTRL = 0x14, 709 MULTICAST_CTRL_RSP = 0x94, 710 GET_VPD_SIZE = 0x15, 711 GET_VPD_SIZE_RSP = 0x95, 712 GET_VPD = 0x16, 713 GET_VPD_RSP = 0x96, 714 TUNE = 0x17, 715 TUNE_RSP = 0x97, 716 QUERY_IP_OFFLOAD = 0x18, 717 QUERY_IP_OFFLOAD_RSP = 0x98, 718 CONTROL_IP_OFFLOAD = 0x19, 719 CONTROL_IP_OFFLOAD_RSP = 0x99, 720 ACL_CHANGE_INDICATION = 0x1A, 721 ACL_QUERY = 0x1B, 722 ACL_QUERY_RSP = 0x9B, 723 QUERY_MAP = 0x1D, 724 QUERY_MAP_RSP = 0x9D, 725 REQUEST_MAP = 0x1E, 726 REQUEST_MAP_RSP = 0x9E, 727 REQUEST_UNMAP = 0x1F, 728 REQUEST_UNMAP_RSP = 0x9F, 729 VLAN_CTRL = 0x20, 730 VLAN_CTRL_RSP = 0xA0, 731 }; 732 733 enum ibmvnic_crq_type { 734 IBMVNIC_CRQ_CMD = 0x80, 735 IBMVNIC_CRQ_CMD_RSP = 0x80, 736 IBMVNIC_CRQ_INIT_CMD = 0xC0, 737 IBMVNIC_CRQ_INIT_RSP = 0xC0, 738 IBMVNIC_CRQ_XPORT_EVENT = 0xFF, 739 }; 740 741 enum ibmvfc_crq_format { 742 IBMVNIC_CRQ_INIT = 0x01, 743 IBMVNIC_CRQ_INIT_COMPLETE = 0x02, 744 IBMVNIC_PARTITION_MIGRATED = 0x06, 745 IBMVNIC_DEVICE_FAILOVER = 0x08, 746 }; 747 748 struct ibmvnic_crq_queue { 749 union ibmvnic_crq *msgs; 750 int size, cur; 751 dma_addr_t msg_token; 752 /* Used for serialization of msgs, cur */ 753 spinlock_t lock; 754 bool active; 755 char name[32]; 756 }; 757 758 union sub_crq { 759 struct ibmvnic_generic_scrq generic; 760 struct ibmvnic_tx_comp_desc tx_comp; 761 struct ibmvnic_tx_desc v1; 762 struct ibmvnic_hdr_desc hdr; 763 struct ibmvnic_hdr_ext_desc hdr_ext; 764 struct ibmvnic_sge_desc sge; 765 struct ibmvnic_rx_comp_desc rx_comp; 766 struct ibmvnic_rx_buff_add_desc rx_add; 767 }; 768 769 struct ibmvnic_ind_xmit_queue { 770 union sub_crq *indir_arr; 771 dma_addr_t indir_dma; 772 int index; 773 }; 774 775 struct ibmvnic_sub_crq_queue { 776 union sub_crq *msgs; 777 int size, cur; 778 dma_addr_t msg_token; 779 unsigned long crq_num; 780 unsigned long hw_irq; 781 unsigned int irq; 782 unsigned int pool_index; 783 int scrq_num; 784 /* Used for serialization of msgs, cur */ 785 spinlock_t lock; 786 struct sk_buff *rx_skb_top; 787 struct ibmvnic_adapter *adapter; 788 struct ibmvnic_ind_xmit_queue ind_buf; 789 atomic_t used; 790 char name[32]; 791 u64 handle; 792 } ____cacheline_aligned; 793 794 struct ibmvnic_long_term_buff { 795 unsigned char *buff; 796 dma_addr_t addr; 797 u64 size; 798 u8 map_id; 799 }; 800 801 struct ibmvnic_tx_buff { 802 struct sk_buff *skb; 803 int index; 804 int pool_index; 805 int num_entries; 806 }; 807 808 struct ibmvnic_tx_pool { 809 struct ibmvnic_tx_buff *tx_buff; 810 int *free_map; 811 int consumer_index; 812 int producer_index; 813 struct ibmvnic_long_term_buff long_term_buff; 814 int num_buffers; 815 int buf_size; 816 } ____cacheline_aligned; 817 818 struct ibmvnic_rx_buff { 819 struct sk_buff *skb; 820 dma_addr_t dma; 821 unsigned char *data; 822 int size; 823 int pool_index; 824 }; 825 826 struct ibmvnic_rx_pool { 827 struct ibmvnic_rx_buff *rx_buff; 828 int size; /* # of buffers in the pool */ 829 int index; 830 int buff_size; 831 atomic_t available; 832 int *free_map; 833 int next_free; 834 int next_alloc; 835 int active; 836 struct ibmvnic_long_term_buff long_term_buff; 837 } ____cacheline_aligned; 838 839 struct ibmvnic_vpd { 840 unsigned char *buff; 841 dma_addr_t dma_addr; 842 u64 len; 843 }; 844 845 enum vnic_state {VNIC_PROBING = 1, 846 VNIC_PROBED, 847 VNIC_OPENING, 848 VNIC_OPEN, 849 VNIC_CLOSING, 850 VNIC_CLOSED, 851 VNIC_REMOVING, 852 VNIC_REMOVED, 853 VNIC_DOWN}; 854 855 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1, 856 VNIC_RESET_MOBILITY, 857 VNIC_RESET_FATAL, 858 VNIC_RESET_NON_FATAL, 859 VNIC_RESET_TIMEOUT, 860 VNIC_RESET_CHANGE_PARAM, 861 VNIC_RESET_PASSIVE_INIT}; 862 863 struct ibmvnic_rwi { 864 enum ibmvnic_reset_reason reset_reason; 865 struct list_head list; 866 }; 867 868 struct ibmvnic_tunables { 869 u64 rx_queues; 870 u64 tx_queues; 871 u64 rx_entries; 872 u64 tx_entries; 873 u64 mtu; 874 }; 875 876 struct ibmvnic_adapter { 877 struct vio_dev *vdev; 878 struct net_device *netdev; 879 struct ibmvnic_crq_queue crq; 880 u8 mac_addr[ETH_ALEN]; 881 struct ibmvnic_query_ip_offload_buffer ip_offload_buf; 882 dma_addr_t ip_offload_tok; 883 struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl; 884 dma_addr_t ip_offload_ctrl_tok; 885 u32 msg_enable; 886 u32 priv_flags; 887 888 /* Vital Product Data (VPD) */ 889 struct ibmvnic_vpd *vpd; 890 char fw_version[32]; 891 892 /* Statistics */ 893 struct ibmvnic_statistics stats; 894 dma_addr_t stats_token; 895 struct completion stats_done; 896 int replenish_no_mem; 897 int replenish_add_buff_success; 898 int replenish_add_buff_failure; 899 int replenish_task_cycles; 900 int tx_send_failed; 901 int tx_map_failed; 902 903 struct ibmvnic_tx_queue_stats *tx_stats_buffers; 904 struct ibmvnic_rx_queue_stats *rx_stats_buffers; 905 906 int phys_link_state; 907 int logical_link_state; 908 909 u32 speed; 910 u8 duplex; 911 912 /* login data */ 913 struct ibmvnic_login_buffer *login_buf; 914 dma_addr_t login_buf_token; 915 int login_buf_sz; 916 917 struct ibmvnic_login_rsp_buffer *login_rsp_buf; 918 dma_addr_t login_rsp_buf_token; 919 int login_rsp_buf_sz; 920 921 atomic_t running_cap_crqs; 922 923 struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned; 924 struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned; 925 926 /* rx structs */ 927 struct napi_struct *napi; 928 struct ibmvnic_rx_pool *rx_pool; 929 u64 promisc; 930 931 struct ibmvnic_tx_pool *tx_pool; 932 struct ibmvnic_tx_pool *tso_pool; 933 struct completion probe_done; 934 struct completion init_done; 935 int init_done_rc; 936 937 struct completion fw_done; 938 /* Used for serialization of device commands */ 939 struct mutex fw_lock; 940 int fw_done_rc; 941 942 struct completion reset_done; 943 int reset_done_rc; 944 bool wait_for_reset; 945 946 /* partner capabilities */ 947 u64 min_tx_queues; 948 u64 min_rx_queues; 949 u64 min_rx_add_queues; 950 u64 max_tx_queues; 951 u64 max_rx_queues; 952 u64 max_rx_add_queues; 953 u64 req_tx_queues; 954 u64 req_rx_queues; 955 u64 req_rx_add_queues; 956 u64 min_tx_entries_per_subcrq; 957 u64 min_rx_add_entries_per_subcrq; 958 u64 max_tx_entries_per_subcrq; 959 u64 max_rx_add_entries_per_subcrq; 960 u64 req_tx_entries_per_subcrq; 961 u64 req_rx_add_entries_per_subcrq; 962 u64 tcp_ip_offload; 963 u64 promisc_requested; 964 u64 promisc_supported; 965 u64 min_mtu; 966 u64 max_mtu; 967 u64 req_mtu; 968 u64 prev_mtu; 969 u64 max_multicast_filters; 970 u64 vlan_header_insertion; 971 u64 rx_vlan_header_insertion; 972 u64 max_tx_sg_entries; 973 u64 rx_sg_supported; 974 u64 rx_sg_requested; 975 u64 opt_tx_comp_sub_queues; 976 u64 opt_rx_comp_queues; 977 u64 opt_rx_bufadd_q_per_rx_comp_q; 978 u64 opt_tx_entries_per_subcrq; 979 u64 opt_rxba_entries_per_subcrq; 980 __be64 tx_rx_desc_req; 981 #define MAX_MAP_ID 255 982 DECLARE_BITMAP(map_ids, MAX_MAP_ID); 983 u32 num_active_rx_scrqs; 984 u32 num_active_rx_pools; 985 u32 num_active_rx_napi; 986 u32 num_active_tx_scrqs; 987 u32 num_active_tx_pools; 988 989 u32 prev_rx_pool_size; 990 u32 prev_tx_pool_size; 991 u32 cur_rx_buf_sz; 992 u32 prev_rx_buf_sz; 993 994 struct tasklet_struct tasklet; 995 enum vnic_state state; 996 /* Used for serialization of state field. When taking both state 997 * and rwi locks, take state lock first. 998 */ 999 spinlock_t state_lock; 1000 enum ibmvnic_reset_reason reset_reason; 1001 struct list_head rwi_list; 1002 /* Used for serialization of rwi_list. When taking both state 1003 * and rwi locks, take state lock first 1004 */ 1005 spinlock_t rwi_lock; 1006 struct work_struct ibmvnic_reset; 1007 struct delayed_work ibmvnic_delayed_reset; 1008 unsigned long resetting; 1009 bool napi_enabled, from_passive_init; 1010 bool login_pending; 1011 /* last device reset time */ 1012 unsigned long last_reset_time; 1013 1014 bool failover_pending; 1015 bool force_reset_recovery; 1016 1017 struct ibmvnic_tunables desired; 1018 struct ibmvnic_tunables fallback; 1019 }; 1020