1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2007 4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 5 * Frank Pavlic <fpavlic@de.ibm.com>, 6 * Thomas Spatzier <tspat@de.ibm.com>, 7 * Frank Blaschka <frank.blaschka@de.ibm.com> 8 */ 9 10 #ifndef __QETH_CORE_H__ 11 #define __QETH_CORE_H__ 12 13 #include <linux/if.h> 14 #include <linux/if_arp.h> 15 #include <linux/etherdevice.h> 16 #include <linux/if_vlan.h> 17 #include <linux/ctype.h> 18 #include <linux/in6.h> 19 #include <linux/bitops.h> 20 #include <linux/seq_file.h> 21 #include <linux/ethtool.h> 22 #include <linux/hashtable.h> 23 #include <linux/ip.h> 24 #include <linux/refcount.h> 25 26 #include <net/ipv6.h> 27 #include <net/if_inet6.h> 28 #include <net/addrconf.h> 29 30 #include <asm/debug.h> 31 #include <asm/qdio.h> 32 #include <asm/ccwdev.h> 33 #include <asm/ccwgroup.h> 34 #include <asm/sysinfo.h> 35 36 #include "qeth_core_mpc.h" 37 38 /** 39 * Debug Facility stuff 40 */ 41 enum qeth_dbf_names { 42 QETH_DBF_SETUP, 43 QETH_DBF_MSG, 44 QETH_DBF_CTRL, 45 QETH_DBF_INFOS /* must be last element */ 46 }; 47 48 struct qeth_dbf_info { 49 char name[DEBUG_MAX_NAME_LEN]; 50 int pages; 51 int areas; 52 int len; 53 int level; 54 struct debug_view *view; 55 debug_info_t *id; 56 }; 57 58 #define QETH_DBF_CTRL_LEN 256 59 60 #define QETH_DBF_TEXT(name, level, text) \ 61 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 62 63 #define QETH_DBF_HEX(name, level, addr, len) \ 64 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 65 66 #define QETH_DBF_MESSAGE(level, text...) \ 67 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 68 69 #define QETH_DBF_TEXT_(name, level, text...) \ 70 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 71 72 #define QETH_CARD_TEXT(card, level, text) \ 73 debug_text_event(card->debug, level, text) 74 75 #define QETH_CARD_HEX(card, level, addr, len) \ 76 debug_event(card->debug, level, (void *)(addr), len) 77 78 #define QETH_CARD_MESSAGE(card, text...) \ 79 debug_sprintf_event(card->debug, level, text) 80 81 #define QETH_CARD_TEXT_(card, level, text...) \ 82 qeth_dbf_longtext(card->debug, level, text) 83 84 #define SENSE_COMMAND_REJECT_BYTE 0 85 #define SENSE_COMMAND_REJECT_FLAG 0x80 86 #define SENSE_RESETTING_EVENT_BYTE 1 87 #define SENSE_RESETTING_EVENT_FLAG 0x80 88 89 /* 90 * Common IO related definitions 91 */ 92 #define CARD_RDEV(card) card->read.ccwdev 93 #define CARD_WDEV(card) card->write.ccwdev 94 #define CARD_DDEV(card) card->data.ccwdev 95 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 96 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 97 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 98 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 99 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) 100 101 /** 102 * card stuff 103 */ 104 struct qeth_perf_stats { 105 unsigned int bufs_rec; 106 unsigned int bufs_sent; 107 108 unsigned int skbs_sent_pack; 109 unsigned int bufs_sent_pack; 110 111 unsigned int sc_dp_p; 112 unsigned int sc_p_dp; 113 /* qdio_cq_handler: number of times called, time spent in */ 114 __u64 cq_start_time; 115 unsigned int cq_cnt; 116 unsigned int cq_time; 117 /* qdio_input_handler: number of times called, time spent in */ 118 __u64 inbound_start_time; 119 unsigned int inbound_cnt; 120 unsigned int inbound_time; 121 /* qeth_send_packet: number of times called, time spent in */ 122 __u64 outbound_start_time; 123 unsigned int outbound_cnt; 124 unsigned int outbound_time; 125 /* qdio_output_handler: number of times called, time spent in */ 126 __u64 outbound_handler_start_time; 127 unsigned int outbound_handler_cnt; 128 unsigned int outbound_handler_time; 129 /* number of calls to and time spent in do_QDIO for inbound queue */ 130 __u64 inbound_do_qdio_start_time; 131 unsigned int inbound_do_qdio_cnt; 132 unsigned int inbound_do_qdio_time; 133 /* number of calls to and time spent in do_QDIO for outbound queues */ 134 __u64 outbound_do_qdio_start_time; 135 unsigned int outbound_do_qdio_cnt; 136 unsigned int outbound_do_qdio_time; 137 unsigned int large_send_bytes; 138 unsigned int large_send_cnt; 139 unsigned int sg_skbs_sent; 140 unsigned int sg_frags_sent; 141 /* initial values when measuring starts */ 142 unsigned long initial_rx_packets; 143 unsigned long initial_tx_packets; 144 /* inbound scatter gather data */ 145 unsigned int sg_skbs_rx; 146 unsigned int sg_frags_rx; 147 unsigned int sg_alloc_page_rx; 148 unsigned int tx_csum; 149 unsigned int tx_lin; 150 unsigned int tx_linfail; 151 }; 152 153 /* Routing stuff */ 154 struct qeth_routing_info { 155 enum qeth_routing_types type; 156 }; 157 158 /* IPA stuff */ 159 struct qeth_ipa_info { 160 __u32 supported_funcs; 161 __u32 enabled_funcs; 162 }; 163 164 /* SETBRIDGEPORT stuff */ 165 enum qeth_sbp_roles { 166 QETH_SBP_ROLE_NONE = 0, 167 QETH_SBP_ROLE_PRIMARY = 1, 168 QETH_SBP_ROLE_SECONDARY = 2, 169 }; 170 171 enum qeth_sbp_states { 172 QETH_SBP_STATE_INACTIVE = 0, 173 QETH_SBP_STATE_STANDBY = 1, 174 QETH_SBP_STATE_ACTIVE = 2, 175 }; 176 177 #define QETH_SBP_HOST_NOTIFICATION 1 178 179 struct qeth_sbp_info { 180 __u32 supported_funcs; 181 enum qeth_sbp_roles role; 182 __u32 hostnotification:1; 183 __u32 reflect_promisc:1; 184 __u32 reflect_promisc_primary:1; 185 }; 186 187 struct qeth_vnicc_info { 188 /* supported/currently configured VNICCs; updated in IPA exchanges */ 189 u32 sup_chars; 190 u32 cur_chars; 191 /* supported commands: bitmasks which VNICCs support respective cmd */ 192 u32 set_char_sup; 193 u32 getset_timeout_sup; 194 /* timeout value for the learning characteristic */ 195 u32 learning_timeout; 196 /* characteristics wanted/configured by user */ 197 u32 wanted_chars; 198 /* has user explicitly enabled rx_bcast while online? */ 199 bool rx_bcast_enabled; 200 }; 201 202 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 203 enum qeth_ipa_funcs func) 204 { 205 return (ipa->supported_funcs & func); 206 } 207 208 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 209 enum qeth_ipa_funcs func) 210 { 211 return (ipa->supported_funcs & ipa->enabled_funcs & func); 212 } 213 214 #define qeth_adp_supported(c, f) \ 215 qeth_is_ipa_supported(&c->options.adp, f) 216 #define qeth_adp_enabled(c, f) \ 217 qeth_is_ipa_enabled(&c->options.adp, f) 218 #define qeth_is_supported(c, f) \ 219 qeth_is_ipa_supported(&c->options.ipa4, f) 220 #define qeth_is_enabled(c, f) \ 221 qeth_is_ipa_enabled(&c->options.ipa4, f) 222 #define qeth_is_supported6(c, f) \ 223 qeth_is_ipa_supported(&c->options.ipa6, f) 224 #define qeth_is_enabled6(c, f) \ 225 qeth_is_ipa_enabled(&c->options.ipa6, f) 226 #define qeth_is_ipafunc_supported(c, prot, f) \ 227 ((prot == QETH_PROT_IPV6) ? \ 228 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 229 #define qeth_is_ipafunc_enabled(c, prot, f) \ 230 ((prot == QETH_PROT_IPV6) ? \ 231 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 232 233 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 234 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 235 236 #define QETH_REAL_CARD 1 237 #define QETH_VLAN_CARD 2 238 #define QETH_BUFSIZE 4096 239 240 /** 241 * some more defs 242 */ 243 #define QETH_TX_TIMEOUT 100 * HZ 244 #define QETH_RCD_TIMEOUT 60 * HZ 245 #define QETH_RECLAIM_WORK_TIME HZ 246 #define QETH_MAX_PORTNO 15 247 248 /*IPv6 address autoconfiguration stuff*/ 249 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 250 #define UNIQUE_ID_NOT_BY_CARD 0x10000 251 252 /*****************************************************************************/ 253 /* QDIO queue and buffer handling */ 254 /*****************************************************************************/ 255 #define QETH_MAX_QUEUES 4 256 #define QETH_IN_BUF_SIZE_DEFAULT 65536 257 #define QETH_IN_BUF_COUNT_DEFAULT 64 258 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 259 #define QETH_IN_BUF_COUNT_MIN 8 260 #define QETH_IN_BUF_COUNT_MAX 128 261 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 262 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 263 ((card)->qdio.in_buf_pool.buf_count / 2) 264 265 /* buffers we have to be behind before we get a PCI */ 266 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 267 /*enqueued free buffers left before we get a PCI*/ 268 #define QETH_PCI_THRESHOLD_B(card) 0 269 /*not used unless the microcode gets patched*/ 270 #define QETH_PCI_TIMER_VALUE(card) 3 271 272 /* priority queing */ 273 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 274 #define QETH_DEFAULT_QUEUE 2 275 #define QETH_NO_PRIO_QUEUEING 0 276 #define QETH_PRIO_Q_ING_PREC 1 277 #define QETH_PRIO_Q_ING_TOS 2 278 #define QETH_PRIO_Q_ING_SKB 3 279 #define QETH_PRIO_Q_ING_VLAN 4 280 281 /* Packing */ 282 #define QETH_LOW_WATERMARK_PACK 2 283 #define QETH_HIGH_WATERMARK_PACK 5 284 #define QETH_WATERMARK_PACK_FUZZ 1 285 286 /* large receive scatter gather copy break */ 287 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 288 #define QETH_RX_PULL_LEN 256 289 290 struct qeth_hdr_layer3 { 291 __u8 id; 292 __u8 flags; 293 __u16 inbound_checksum; /*TSO:__u16 seqno */ 294 __u32 token; /*TSO: __u32 reserved */ 295 __u16 length; 296 __u8 vlan_prio; 297 __u8 ext_flags; 298 __u16 vlan_id; 299 __u16 frame_offset; 300 union { 301 /* TX: */ 302 u8 ipv6_addr[16]; 303 struct ipv4 { 304 u8 res[12]; 305 u32 addr; 306 } ipv4; 307 /* RX: */ 308 struct rx { 309 u8 res1[2]; 310 u8 src_mac[6]; 311 u8 res2[4]; 312 u16 vlan_id; 313 u8 res3[2]; 314 } rx; 315 } next_hop; 316 }; 317 318 struct qeth_hdr_layer2 { 319 __u8 id; 320 __u8 flags[3]; 321 __u8 port_no; 322 __u8 hdr_length; 323 __u16 pkt_length; 324 __u16 seq_no; 325 __u16 vlan_id; 326 __u32 reserved; 327 __u8 reserved2[16]; 328 } __attribute__ ((packed)); 329 330 struct qeth_hdr_osn { 331 __u8 id; 332 __u8 reserved; 333 __u16 seq_no; 334 __u16 reserved2; 335 __u16 control_flags; 336 __u16 pdu_length; 337 __u8 reserved3[18]; 338 __u32 ccid; 339 } __attribute__ ((packed)); 340 341 struct qeth_hdr { 342 union { 343 struct qeth_hdr_layer2 l2; 344 struct qeth_hdr_layer3 l3; 345 struct qeth_hdr_osn osn; 346 } hdr; 347 } __attribute__ ((packed)); 348 349 /*TCP Segmentation Offload header*/ 350 struct qeth_hdr_ext_tso { 351 __u16 hdr_tot_len; 352 __u8 imb_hdr_no; 353 __u8 reserved; 354 __u8 hdr_type; 355 __u8 hdr_version; 356 __u16 hdr_len; 357 __u32 payload_len; 358 __u16 mss; 359 __u16 dg_hdr_len; 360 __u8 padding[16]; 361 } __attribute__ ((packed)); 362 363 struct qeth_hdr_tso { 364 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 365 struct qeth_hdr_ext_tso ext; 366 } __attribute__ ((packed)); 367 368 369 /* flags for qeth_hdr.flags */ 370 #define QETH_HDR_PASSTHRU 0x10 371 #define QETH_HDR_IPV6 0x80 372 #define QETH_HDR_CAST_MASK 0x07 373 enum qeth_cast_flags { 374 QETH_CAST_UNICAST = 0x06, 375 QETH_CAST_MULTICAST = 0x04, 376 QETH_CAST_BROADCAST = 0x05, 377 QETH_CAST_ANYCAST = 0x07, 378 QETH_CAST_NOCAST = 0x00, 379 }; 380 381 enum qeth_layer2_frame_flags { 382 QETH_LAYER2_FLAG_MULTICAST = 0x01, 383 QETH_LAYER2_FLAG_BROADCAST = 0x02, 384 QETH_LAYER2_FLAG_UNICAST = 0x04, 385 QETH_LAYER2_FLAG_VLAN = 0x10, 386 }; 387 388 enum qeth_header_ids { 389 QETH_HEADER_TYPE_LAYER3 = 0x01, 390 QETH_HEADER_TYPE_LAYER2 = 0x02, 391 QETH_HEADER_TYPE_TSO = 0x03, 392 QETH_HEADER_TYPE_OSN = 0x04, 393 }; 394 /* flags for qeth_hdr.ext_flags */ 395 #define QETH_HDR_EXT_VLAN_FRAME 0x01 396 #define QETH_HDR_EXT_TOKEN_ID 0x02 397 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 398 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 399 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 400 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 401 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 402 403 enum qeth_qdio_buffer_states { 404 /* 405 * inbound: read out by driver; owned by hardware in order to be filled 406 * outbound: owned by driver in order to be filled 407 */ 408 QETH_QDIO_BUF_EMPTY, 409 /* 410 * inbound: filled by hardware; owned by driver in order to be read out 411 * outbound: filled by driver; owned by hardware in order to be sent 412 */ 413 QETH_QDIO_BUF_PRIMED, 414 /* 415 * inbound: not applicable 416 * outbound: identified to be pending in TPQ 417 */ 418 QETH_QDIO_BUF_PENDING, 419 /* 420 * inbound: not applicable 421 * outbound: found in completion queue 422 */ 423 QETH_QDIO_BUF_IN_CQ, 424 /* 425 * inbound: not applicable 426 * outbound: handled via transfer pending / completion queue 427 */ 428 QETH_QDIO_BUF_HANDLED_DELAYED, 429 }; 430 431 enum qeth_qdio_info_states { 432 QETH_QDIO_UNINITIALIZED, 433 QETH_QDIO_ALLOCATED, 434 QETH_QDIO_ESTABLISHED, 435 QETH_QDIO_CLEANING 436 }; 437 438 struct qeth_buffer_pool_entry { 439 struct list_head list; 440 struct list_head init_list; 441 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 442 }; 443 444 struct qeth_qdio_buffer_pool { 445 struct list_head entry_list; 446 int buf_count; 447 }; 448 449 struct qeth_qdio_buffer { 450 struct qdio_buffer *buffer; 451 /* the buffer pool entry currently associated to this buffer */ 452 struct qeth_buffer_pool_entry *pool_entry; 453 struct sk_buff *rx_skb; 454 }; 455 456 struct qeth_qdio_q { 457 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 458 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 459 int next_buf_to_init; 460 }; 461 462 struct qeth_qdio_out_buffer { 463 struct qdio_buffer *buffer; 464 atomic_t state; 465 int next_element_to_fill; 466 struct sk_buff_head skb_list; 467 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 468 469 struct qaob *aob; 470 struct qeth_qdio_out_q *q; 471 struct qeth_qdio_out_buffer *next_pending; 472 }; 473 474 struct qeth_card; 475 476 enum qeth_out_q_states { 477 QETH_OUT_Q_UNLOCKED, 478 QETH_OUT_Q_LOCKED, 479 QETH_OUT_Q_LOCKED_FLUSH, 480 }; 481 482 struct qeth_qdio_out_q { 483 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 484 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 485 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 486 int queue_no; 487 struct qeth_card *card; 488 atomic_t state; 489 int do_pack; 490 /* 491 * index of buffer to be filled by driver; state EMPTY or PACKING 492 */ 493 int next_buf_to_fill; 494 /* 495 * number of buffers that are currently filled (PRIMED) 496 * -> these buffers are hardware-owned 497 */ 498 atomic_t used_buffers; 499 /* indicates whether PCI flag must be set (or if one is outstanding) */ 500 atomic_t set_pci_flags_count; 501 }; 502 503 struct qeth_qdio_info { 504 atomic_t state; 505 /* input */ 506 int no_in_queues; 507 struct qeth_qdio_q *in_q; 508 struct qeth_qdio_q *c_q; 509 struct qeth_qdio_buffer_pool in_buf_pool; 510 struct qeth_qdio_buffer_pool init_pool; 511 int in_buf_size; 512 513 /* output */ 514 int no_out_queues; 515 struct qeth_qdio_out_q **out_qs; 516 struct qdio_outbuf_state *out_bufstates; 517 518 /* priority queueing */ 519 int do_prio_queueing; 520 int default_out_queue; 521 }; 522 523 /** 524 * buffer stuff for read channel 525 */ 526 #define QETH_CMD_BUFFER_NO 8 527 528 /** 529 * channel state machine 530 */ 531 enum qeth_channel_states { 532 CH_STATE_UP, 533 CH_STATE_DOWN, 534 CH_STATE_ACTIVATING, 535 CH_STATE_HALTED, 536 CH_STATE_STOPPED, 537 CH_STATE_RCD, 538 CH_STATE_RCD_DONE, 539 }; 540 /** 541 * card state machine 542 */ 543 enum qeth_card_states { 544 CARD_STATE_DOWN, 545 CARD_STATE_HARDSETUP, 546 CARD_STATE_SOFTSETUP, 547 CARD_STATE_UP, 548 CARD_STATE_RECOVER, 549 }; 550 551 /** 552 * Protocol versions 553 */ 554 enum qeth_prot_versions { 555 QETH_PROT_IPV4 = 0x0004, 556 QETH_PROT_IPV6 = 0x0006, 557 }; 558 559 enum qeth_ip_types { 560 QETH_IP_TYPE_NORMAL, 561 QETH_IP_TYPE_VIPA, 562 QETH_IP_TYPE_RXIP, 563 }; 564 565 enum qeth_cmd_buffer_state { 566 BUF_STATE_FREE, 567 BUF_STATE_LOCKED, 568 BUF_STATE_PROCESSED, 569 }; 570 571 enum qeth_cq { 572 QETH_CQ_DISABLED = 0, 573 QETH_CQ_ENABLED = 1, 574 QETH_CQ_NOTAVAILABLE = 2, 575 }; 576 577 struct qeth_ipato { 578 bool enabled; 579 bool invert4; 580 bool invert6; 581 struct list_head entries; 582 }; 583 584 struct qeth_channel; 585 586 struct qeth_cmd_buffer { 587 enum qeth_cmd_buffer_state state; 588 struct qeth_channel *channel; 589 unsigned char *data; 590 int rc; 591 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); 592 }; 593 594 /** 595 * definition of a qeth channel, used for read and write 596 */ 597 struct qeth_channel { 598 enum qeth_channel_states state; 599 struct ccw1 ccw; 600 spinlock_t iob_lock; 601 wait_queue_head_t wait_q; 602 struct ccw_device *ccwdev; 603 /*command buffer for control data*/ 604 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 605 atomic_t irq_pending; 606 int io_buf_no; 607 int buf_no; 608 }; 609 610 /** 611 * OSA card related definitions 612 */ 613 struct qeth_token { 614 __u32 issuer_rm_w; 615 __u32 issuer_rm_r; 616 __u32 cm_filter_w; 617 __u32 cm_filter_r; 618 __u32 cm_connection_w; 619 __u32 cm_connection_r; 620 __u32 ulp_filter_w; 621 __u32 ulp_filter_r; 622 __u32 ulp_connection_w; 623 __u32 ulp_connection_r; 624 }; 625 626 struct qeth_seqno { 627 __u32 trans_hdr; 628 __u32 pdu_hdr; 629 __u32 pdu_hdr_ack; 630 __u16 ipa; 631 __u32 pkt_seqno; 632 }; 633 634 struct qeth_reply { 635 struct list_head list; 636 wait_queue_head_t wait_q; 637 int (*callback)(struct qeth_card *, struct qeth_reply *, 638 unsigned long); 639 u32 seqno; 640 unsigned long offset; 641 atomic_t received; 642 int rc; 643 void *param; 644 struct qeth_card *card; 645 refcount_t refcnt; 646 }; 647 648 struct qeth_card_blkt { 649 int time_total; 650 int inter_packet; 651 int inter_packet_jumbo; 652 }; 653 654 #define QETH_BROADCAST_WITH_ECHO 0x01 655 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 656 #define QETH_LAYER2_MAC_READ 0x01 657 #define QETH_LAYER2_MAC_REGISTERED 0x02 658 struct qeth_card_info { 659 unsigned short unit_addr2; 660 unsigned short cula; 661 unsigned short chpid; 662 __u16 func_level; 663 char mcl_level[QETH_MCL_LENGTH + 1]; 664 int guestlan; 665 int mac_bits; 666 int portno; 667 enum qeth_card_types type; 668 enum qeth_link_types link_type; 669 int is_multicast_different; 670 int initial_mtu; 671 int max_mtu; 672 int broadcast_capable; 673 int unique_id; 674 bool layer_enforced; 675 struct qeth_card_blkt blkt; 676 enum qeth_ipa_promisc_modes promisc_mode; 677 __u32 diagass_support; 678 __u32 hwtrap; 679 }; 680 681 struct qeth_card_options { 682 struct qeth_routing_info route4; 683 struct qeth_ipa_info ipa4; 684 struct qeth_ipa_info adp; /*Adapter parameters*/ 685 struct qeth_routing_info route6; 686 struct qeth_ipa_info ipa6; 687 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 688 struct qeth_vnicc_info vnicc; /* VNICC options */ 689 int fake_broadcast; 690 int layer2; 691 int performance_stats; 692 int rx_sg_cb; 693 enum qeth_ipa_isolation_modes isolation; 694 enum qeth_ipa_isolation_modes prev_isolation; 695 int sniffer; 696 enum qeth_cq cq; 697 char hsuid[9]; 698 }; 699 700 /* 701 * thread bits for qeth_card thread masks 702 */ 703 enum qeth_threads { 704 QETH_RECOVER_THREAD = 1, 705 }; 706 707 struct qeth_osn_info { 708 int (*assist_cb)(struct net_device *dev, void *data); 709 int (*data_cb)(struct sk_buff *skb); 710 }; 711 712 enum qeth_discipline_id { 713 QETH_DISCIPLINE_UNDETERMINED = -1, 714 QETH_DISCIPLINE_LAYER3 = 0, 715 QETH_DISCIPLINE_LAYER2 = 1, 716 }; 717 718 struct qeth_discipline { 719 const struct device_type *devtype; 720 void (*start_poll)(struct ccw_device *, int, unsigned long); 721 qdio_handler_t *input_handler; 722 qdio_handler_t *output_handler; 723 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 724 int (*recover)(void *ptr); 725 int (*setup) (struct ccwgroup_device *); 726 void (*remove) (struct ccwgroup_device *); 727 int (*set_online) (struct ccwgroup_device *); 728 int (*set_offline) (struct ccwgroup_device *); 729 int (*freeze)(struct ccwgroup_device *); 730 int (*thaw) (struct ccwgroup_device *); 731 int (*restore)(struct ccwgroup_device *); 732 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 733 int (*control_event_handler)(struct qeth_card *card, 734 struct qeth_ipa_cmd *cmd); 735 }; 736 737 struct qeth_vlan_vid { 738 struct list_head list; 739 unsigned short vid; 740 }; 741 742 enum qeth_addr_disposition { 743 QETH_DISP_ADDR_DELETE = 0, 744 QETH_DISP_ADDR_DO_NOTHING = 1, 745 QETH_DISP_ADDR_ADD = 2, 746 }; 747 748 struct qeth_rx { 749 int b_count; 750 int b_index; 751 struct qdio_buffer_element *b_element; 752 int e_offset; 753 int qdio_err; 754 }; 755 756 struct carrier_info { 757 __u8 card_type; 758 __u16 port_mode; 759 __u32 port_speed; 760 }; 761 762 struct qeth_switch_info { 763 __u32 capabilities; 764 __u32 settings; 765 }; 766 767 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 768 769 struct qeth_card { 770 struct list_head list; 771 enum qeth_card_states state; 772 int lan_online; 773 spinlock_t lock; 774 struct ccwgroup_device *gdev; 775 struct qeth_channel read; 776 struct qeth_channel write; 777 struct qeth_channel data; 778 779 struct net_device *dev; 780 struct net_device_stats stats; 781 782 struct qeth_card_info info; 783 struct qeth_token token; 784 struct qeth_seqno seqno; 785 struct qeth_card_options options; 786 787 wait_queue_head_t wait_q; 788 spinlock_t vlanlock; 789 spinlock_t mclock; 790 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 791 struct list_head vid_list; 792 DECLARE_HASHTABLE(mac_htable, 4); 793 DECLARE_HASHTABLE(ip_htable, 4); 794 DECLARE_HASHTABLE(ip_mc_htable, 4); 795 struct work_struct kernel_thread_starter; 796 spinlock_t thread_mask_lock; 797 unsigned long thread_start_mask; 798 unsigned long thread_allowed_mask; 799 unsigned long thread_running_mask; 800 struct task_struct *recovery_task; 801 spinlock_t ip_lock; 802 struct qeth_ipato ipato; 803 struct list_head cmd_waiter_list; 804 /* QDIO buffer handling */ 805 struct qeth_qdio_info qdio; 806 struct qeth_perf_stats perf_stats; 807 int read_or_write_problem; 808 struct qeth_osn_info osn_info; 809 struct qeth_discipline *discipline; 810 atomic_t force_alloc_skb; 811 struct service_level qeth_service_level; 812 struct qdio_ssqd_desc ssqd; 813 debug_info_t *debug; 814 struct mutex conf_mutex; 815 struct mutex discipline_mutex; 816 struct napi_struct napi; 817 struct qeth_rx rx; 818 struct delayed_work buffer_reclaim_work; 819 int reclaim_index; 820 struct work_struct close_dev_work; 821 }; 822 823 struct qeth_card_list_struct { 824 struct list_head list; 825 rwlock_t rwlock; 826 }; 827 828 struct qeth_trap_id { 829 __u16 lparnr; 830 char vmname[8]; 831 __u8 chpid; 832 __u8 ssid; 833 __u16 devno; 834 } __packed; 835 836 /*some helper functions*/ 837 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 838 839 /** 840 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 841 * @start: Start of the address range. 842 * @end: Address after the end of the range. 843 * 844 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 845 * the specified address range. 846 */ 847 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 848 { 849 return PFN_UP(end - 1) - PFN_DOWN(start); 850 } 851 852 static inline int qeth_get_micros(void) 853 { 854 return (int) (get_tod_clock() >> 12); 855 } 856 857 static inline int qeth_get_ip_version(struct sk_buff *skb) 858 { 859 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 860 __be16 prot = veth->h_vlan_proto; 861 862 if (prot == htons(ETH_P_8021Q)) 863 prot = veth->h_vlan_encapsulated_proto; 864 865 switch (prot) { 866 case htons(ETH_P_IPV6): 867 return 6; 868 case htons(ETH_P_IP): 869 return 4; 870 default: 871 return 0; 872 } 873 } 874 875 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 876 struct qeth_buffer_pool_entry *entry) 877 { 878 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 879 } 880 881 static inline int qeth_is_diagass_supported(struct qeth_card *card, 882 enum qeth_diags_cmds cmd) 883 { 884 return card->info.diagass_support & (__u32)cmd; 885 } 886 887 extern struct qeth_discipline qeth_l2_discipline; 888 extern struct qeth_discipline qeth_l3_discipline; 889 extern const struct attribute_group *qeth_generic_attr_groups[]; 890 extern const struct attribute_group *qeth_osn_attr_groups[]; 891 extern const struct attribute_group qeth_device_attr_group; 892 extern const struct attribute_group qeth_device_blkt_group; 893 extern const struct device_type qeth_generic_devtype; 894 extern struct workqueue_struct *qeth_wq; 895 896 int qeth_card_hw_is_reachable(struct qeth_card *); 897 const char *qeth_get_cardname_short(struct qeth_card *); 898 int qeth_realloc_buffer_pool(struct qeth_card *, int); 899 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 900 void qeth_core_free_discipline(struct qeth_card *); 901 902 /* exports for qeth discipline device drivers */ 903 extern struct qeth_card_list_struct qeth_core_card_list; 904 extern struct kmem_cache *qeth_core_header_cache; 905 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 906 907 void qeth_set_recovery_task(struct qeth_card *); 908 void qeth_clear_recovery_task(struct qeth_card *); 909 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 910 int qeth_threads_running(struct qeth_card *, unsigned long); 911 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 912 int qeth_do_run_thread(struct qeth_card *, unsigned long); 913 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 914 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 915 int qeth_core_hardsetup_card(struct qeth_card *); 916 void qeth_print_status_message(struct qeth_card *); 917 int qeth_init_qdio_queues(struct qeth_card *); 918 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 919 int (*reply_cb) 920 (struct qeth_card *, struct qeth_reply *, unsigned long), 921 void *); 922 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 923 enum qeth_ipa_cmds, enum qeth_prot_versions); 924 int qeth_query_setadapterparms(struct qeth_card *); 925 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 926 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 927 struct qeth_hdr **); 928 void qeth_schedule_recovery(struct qeth_card *); 929 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long); 930 int qeth_poll(struct napi_struct *napi, int budget); 931 void qeth_qdio_input_handler(struct ccw_device *, 932 unsigned int, unsigned int, int, 933 int, unsigned long); 934 void qeth_qdio_output_handler(struct ccw_device *, unsigned int, 935 int, int, int, unsigned long); 936 void qeth_clear_ipacmd_list(struct qeth_card *); 937 int qeth_qdio_clear_card(struct qeth_card *, int); 938 void qeth_clear_working_pool_list(struct qeth_card *); 939 void qeth_clear_cmd_buffers(struct qeth_channel *); 940 void qeth_clear_qdio_buffers(struct qeth_card *); 941 void qeth_setadp_promisc_mode(struct qeth_card *); 942 struct net_device_stats *qeth_get_stats(struct net_device *); 943 int qeth_change_mtu(struct net_device *, int); 944 int qeth_setadpparms_change_macaddr(struct qeth_card *); 945 void qeth_tx_timeout(struct net_device *); 946 void qeth_prepare_control_data(struct qeth_card *, int, 947 struct qeth_cmd_buffer *); 948 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 949 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); 950 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 951 int qeth_query_switch_attributes(struct qeth_card *card, 952 struct qeth_switch_info *sw_info); 953 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 954 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 955 void *reply_param); 956 int qeth_bridgeport_query_ports(struct qeth_card *card, 957 enum qeth_sbp_roles *role, enum qeth_sbp_states *state); 958 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role); 959 int qeth_bridgeport_an_set(struct qeth_card *card, int enable); 960 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); 961 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, 962 int extra_elems, int data_offset); 963 int qeth_get_elements_for_frags(struct sk_buff *); 964 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 965 struct qeth_hdr *hdr, unsigned int offset, 966 unsigned int hd_len); 967 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 968 struct sk_buff *skb, struct qeth_hdr *hdr, 969 unsigned int offset, unsigned int hd_len, 970 int elements_needed); 971 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 972 int qeth_core_get_sset_count(struct net_device *, int); 973 void qeth_core_get_ethtool_stats(struct net_device *, 974 struct ethtool_stats *, u64 *); 975 void qeth_core_get_strings(struct net_device *, u32, u8 *); 976 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 977 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 978 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 979 struct ethtool_link_ksettings *cmd); 980 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 981 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); 982 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 983 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 984 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot); 985 void qeth_trace_features(struct qeth_card *); 986 void qeth_close_dev(struct qeth_card *); 987 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs, 988 __u16, long); 989 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 990 long, 991 int (*reply_cb)(struct qeth_card *, 992 struct qeth_reply *, unsigned long), 993 void *); 994 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 995 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 996 enum qeth_ipa_funcs, 997 __u16, __u16, 998 enum qeth_prot_versions); 999 int qeth_set_features(struct net_device *, netdev_features_t); 1000 void qeth_recover_features(struct net_device *dev); 1001 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1002 netdev_features_t qeth_features_check(struct sk_buff *skb, 1003 struct net_device *dev, 1004 netdev_features_t features); 1005 int qeth_vm_request_mac(struct qeth_card *card); 1006 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len); 1007 1008 /* exports for OSN */ 1009 int qeth_osn_assist(struct net_device *, void *, int); 1010 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1011 int (*assist_cb)(struct net_device *, void *), 1012 int (*data_cb)(struct sk_buff *)); 1013 void qeth_osn_deregister(struct net_device *); 1014 1015 #endif /* __QETH_CORE_H__ */ 1016