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 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 595 { 596 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 597 } 598 599 /** 600 * definition of a qeth channel, used for read and write 601 */ 602 struct qeth_channel { 603 enum qeth_channel_states state; 604 struct ccw1 ccw; 605 spinlock_t iob_lock; 606 wait_queue_head_t wait_q; 607 struct ccw_device *ccwdev; 608 /*command buffer for control data*/ 609 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 610 atomic_t irq_pending; 611 int io_buf_no; 612 int buf_no; 613 }; 614 615 /** 616 * OSA card related definitions 617 */ 618 struct qeth_token { 619 __u32 issuer_rm_w; 620 __u32 issuer_rm_r; 621 __u32 cm_filter_w; 622 __u32 cm_filter_r; 623 __u32 cm_connection_w; 624 __u32 cm_connection_r; 625 __u32 ulp_filter_w; 626 __u32 ulp_filter_r; 627 __u32 ulp_connection_w; 628 __u32 ulp_connection_r; 629 }; 630 631 struct qeth_seqno { 632 __u32 trans_hdr; 633 __u32 pdu_hdr; 634 __u32 pdu_hdr_ack; 635 __u16 ipa; 636 __u32 pkt_seqno; 637 }; 638 639 struct qeth_reply { 640 struct list_head list; 641 wait_queue_head_t wait_q; 642 int (*callback)(struct qeth_card *, struct qeth_reply *, 643 unsigned long); 644 u32 seqno; 645 unsigned long offset; 646 atomic_t received; 647 int rc; 648 void *param; 649 struct qeth_card *card; 650 refcount_t refcnt; 651 }; 652 653 struct qeth_card_blkt { 654 int time_total; 655 int inter_packet; 656 int inter_packet_jumbo; 657 }; 658 659 #define QETH_BROADCAST_WITH_ECHO 0x01 660 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 661 #define QETH_LAYER2_MAC_READ 0x01 662 #define QETH_LAYER2_MAC_REGISTERED 0x02 663 struct qeth_card_info { 664 unsigned short unit_addr2; 665 unsigned short cula; 666 unsigned short chpid; 667 __u16 func_level; 668 char mcl_level[QETH_MCL_LENGTH + 1]; 669 int guestlan; 670 int mac_bits; 671 int portno; 672 enum qeth_card_types type; 673 enum qeth_link_types link_type; 674 int is_multicast_different; 675 int initial_mtu; 676 int max_mtu; 677 int broadcast_capable; 678 int unique_id; 679 bool layer_enforced; 680 struct qeth_card_blkt blkt; 681 enum qeth_ipa_promisc_modes promisc_mode; 682 __u32 diagass_support; 683 __u32 hwtrap; 684 }; 685 686 struct qeth_card_options { 687 struct qeth_routing_info route4; 688 struct qeth_ipa_info ipa4; 689 struct qeth_ipa_info adp; /*Adapter parameters*/ 690 struct qeth_routing_info route6; 691 struct qeth_ipa_info ipa6; 692 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 693 struct qeth_vnicc_info vnicc; /* VNICC options */ 694 int fake_broadcast; 695 int layer2; 696 int performance_stats; 697 int rx_sg_cb; 698 enum qeth_ipa_isolation_modes isolation; 699 enum qeth_ipa_isolation_modes prev_isolation; 700 int sniffer; 701 enum qeth_cq cq; 702 char hsuid[9]; 703 }; 704 705 /* 706 * thread bits for qeth_card thread masks 707 */ 708 enum qeth_threads { 709 QETH_RECOVER_THREAD = 1, 710 }; 711 712 struct qeth_osn_info { 713 int (*assist_cb)(struct net_device *dev, void *data); 714 int (*data_cb)(struct sk_buff *skb); 715 }; 716 717 enum qeth_discipline_id { 718 QETH_DISCIPLINE_UNDETERMINED = -1, 719 QETH_DISCIPLINE_LAYER3 = 0, 720 QETH_DISCIPLINE_LAYER2 = 1, 721 }; 722 723 struct qeth_discipline { 724 const struct device_type *devtype; 725 void (*start_poll)(struct ccw_device *, int, unsigned long); 726 qdio_handler_t *input_handler; 727 qdio_handler_t *output_handler; 728 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 729 int (*recover)(void *ptr); 730 int (*setup) (struct ccwgroup_device *); 731 void (*remove) (struct ccwgroup_device *); 732 int (*set_online) (struct ccwgroup_device *); 733 int (*set_offline) (struct ccwgroup_device *); 734 int (*freeze)(struct ccwgroup_device *); 735 int (*thaw) (struct ccwgroup_device *); 736 int (*restore)(struct ccwgroup_device *); 737 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 738 int (*control_event_handler)(struct qeth_card *card, 739 struct qeth_ipa_cmd *cmd); 740 }; 741 742 struct qeth_vlan_vid { 743 struct list_head list; 744 unsigned short vid; 745 }; 746 747 enum qeth_addr_disposition { 748 QETH_DISP_ADDR_DELETE = 0, 749 QETH_DISP_ADDR_DO_NOTHING = 1, 750 QETH_DISP_ADDR_ADD = 2, 751 }; 752 753 struct qeth_rx { 754 int b_count; 755 int b_index; 756 struct qdio_buffer_element *b_element; 757 int e_offset; 758 int qdio_err; 759 }; 760 761 struct carrier_info { 762 __u8 card_type; 763 __u16 port_mode; 764 __u32 port_speed; 765 }; 766 767 struct qeth_switch_info { 768 __u32 capabilities; 769 __u32 settings; 770 }; 771 772 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 773 774 struct qeth_card { 775 struct list_head list; 776 enum qeth_card_states state; 777 int lan_online; 778 spinlock_t lock; 779 struct ccwgroup_device *gdev; 780 struct qeth_channel read; 781 struct qeth_channel write; 782 struct qeth_channel data; 783 784 struct net_device *dev; 785 struct net_device_stats stats; 786 787 struct qeth_card_info info; 788 struct qeth_token token; 789 struct qeth_seqno seqno; 790 struct qeth_card_options options; 791 792 wait_queue_head_t wait_q; 793 spinlock_t vlanlock; 794 spinlock_t mclock; 795 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 796 struct list_head vid_list; 797 DECLARE_HASHTABLE(mac_htable, 4); 798 DECLARE_HASHTABLE(ip_htable, 4); 799 DECLARE_HASHTABLE(ip_mc_htable, 4); 800 struct work_struct kernel_thread_starter; 801 spinlock_t thread_mask_lock; 802 unsigned long thread_start_mask; 803 unsigned long thread_allowed_mask; 804 unsigned long thread_running_mask; 805 struct task_struct *recovery_task; 806 spinlock_t ip_lock; 807 struct qeth_ipato ipato; 808 struct list_head cmd_waiter_list; 809 /* QDIO buffer handling */ 810 struct qeth_qdio_info qdio; 811 struct qeth_perf_stats perf_stats; 812 int read_or_write_problem; 813 struct qeth_osn_info osn_info; 814 struct qeth_discipline *discipline; 815 atomic_t force_alloc_skb; 816 struct service_level qeth_service_level; 817 struct qdio_ssqd_desc ssqd; 818 debug_info_t *debug; 819 struct mutex conf_mutex; 820 struct mutex discipline_mutex; 821 struct napi_struct napi; 822 struct qeth_rx rx; 823 struct delayed_work buffer_reclaim_work; 824 int reclaim_index; 825 struct work_struct close_dev_work; 826 }; 827 828 struct qeth_card_list_struct { 829 struct list_head list; 830 rwlock_t rwlock; 831 }; 832 833 struct qeth_trap_id { 834 __u16 lparnr; 835 char vmname[8]; 836 __u8 chpid; 837 __u8 ssid; 838 __u16 devno; 839 } __packed; 840 841 /*some helper functions*/ 842 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 843 844 /** 845 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 846 * @start: Start of the address range. 847 * @end: Address after the end of the range. 848 * 849 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 850 * the specified address range. 851 */ 852 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 853 { 854 return PFN_UP(end) - PFN_DOWN(start); 855 } 856 857 static inline int qeth_get_micros(void) 858 { 859 return (int) (get_tod_clock() >> 12); 860 } 861 862 static inline int qeth_get_ip_version(struct sk_buff *skb) 863 { 864 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 865 __be16 prot = veth->h_vlan_proto; 866 867 if (prot == htons(ETH_P_8021Q)) 868 prot = veth->h_vlan_encapsulated_proto; 869 870 switch (prot) { 871 case htons(ETH_P_IPV6): 872 return 6; 873 case htons(ETH_P_IP): 874 return 4; 875 default: 876 return 0; 877 } 878 } 879 880 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 881 struct qeth_buffer_pool_entry *entry) 882 { 883 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 884 } 885 886 static inline int qeth_is_diagass_supported(struct qeth_card *card, 887 enum qeth_diags_cmds cmd) 888 { 889 return card->info.diagass_support & (__u32)cmd; 890 } 891 892 extern struct qeth_discipline qeth_l2_discipline; 893 extern struct qeth_discipline qeth_l3_discipline; 894 extern const struct attribute_group *qeth_generic_attr_groups[]; 895 extern const struct attribute_group *qeth_osn_attr_groups[]; 896 extern const struct attribute_group qeth_device_attr_group; 897 extern const struct attribute_group qeth_device_blkt_group; 898 extern const struct device_type qeth_generic_devtype; 899 extern struct workqueue_struct *qeth_wq; 900 901 int qeth_card_hw_is_reachable(struct qeth_card *); 902 const char *qeth_get_cardname_short(struct qeth_card *); 903 int qeth_realloc_buffer_pool(struct qeth_card *, int); 904 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 905 void qeth_core_free_discipline(struct qeth_card *); 906 907 /* exports for qeth discipline device drivers */ 908 extern struct qeth_card_list_struct qeth_core_card_list; 909 extern struct kmem_cache *qeth_core_header_cache; 910 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 911 912 void qeth_set_recovery_task(struct qeth_card *); 913 void qeth_clear_recovery_task(struct qeth_card *); 914 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 915 int qeth_threads_running(struct qeth_card *, unsigned long); 916 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 917 int qeth_do_run_thread(struct qeth_card *, unsigned long); 918 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 919 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 920 int qeth_core_hardsetup_card(struct qeth_card *); 921 void qeth_print_status_message(struct qeth_card *); 922 int qeth_init_qdio_queues(struct qeth_card *); 923 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 924 int (*reply_cb) 925 (struct qeth_card *, struct qeth_reply *, unsigned long), 926 void *); 927 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 928 enum qeth_ipa_cmds, enum qeth_prot_versions); 929 int qeth_query_setadapterparms(struct qeth_card *); 930 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 931 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 932 struct qeth_hdr **); 933 void qeth_schedule_recovery(struct qeth_card *); 934 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long); 935 int qeth_poll(struct napi_struct *napi, int budget); 936 void qeth_qdio_input_handler(struct ccw_device *, 937 unsigned int, unsigned int, int, 938 int, unsigned long); 939 void qeth_qdio_output_handler(struct ccw_device *, unsigned int, 940 int, int, int, unsigned long); 941 void qeth_clear_ipacmd_list(struct qeth_card *); 942 int qeth_qdio_clear_card(struct qeth_card *, int); 943 void qeth_clear_working_pool_list(struct qeth_card *); 944 void qeth_clear_cmd_buffers(struct qeth_channel *); 945 void qeth_clear_qdio_buffers(struct qeth_card *); 946 void qeth_setadp_promisc_mode(struct qeth_card *); 947 struct net_device_stats *qeth_get_stats(struct net_device *); 948 int qeth_change_mtu(struct net_device *, int); 949 int qeth_setadpparms_change_macaddr(struct qeth_card *); 950 void qeth_tx_timeout(struct net_device *); 951 void qeth_prepare_control_data(struct qeth_card *, int, 952 struct qeth_cmd_buffer *); 953 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 954 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); 955 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 956 int qeth_query_switch_attributes(struct qeth_card *card, 957 struct qeth_switch_info *sw_info); 958 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 959 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 960 void *reply_param); 961 int qeth_bridgeport_query_ports(struct qeth_card *card, 962 enum qeth_sbp_roles *role, enum qeth_sbp_states *state); 963 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role); 964 int qeth_bridgeport_an_set(struct qeth_card *card, int enable); 965 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); 966 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, 967 int extra_elems, int data_offset); 968 int qeth_get_elements_for_frags(struct sk_buff *); 969 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 970 struct qeth_hdr *hdr, unsigned int offset, 971 unsigned int hd_len); 972 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 973 struct sk_buff *skb, struct qeth_hdr *hdr, 974 unsigned int offset, unsigned int hd_len, 975 int elements_needed); 976 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 977 int qeth_core_get_sset_count(struct net_device *, int); 978 void qeth_core_get_ethtool_stats(struct net_device *, 979 struct ethtool_stats *, u64 *); 980 void qeth_core_get_strings(struct net_device *, u32, u8 *); 981 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 982 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 983 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 984 struct ethtool_link_ksettings *cmd); 985 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 986 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); 987 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 988 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 989 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot); 990 void qeth_trace_features(struct qeth_card *); 991 void qeth_close_dev(struct qeth_card *); 992 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs, 993 __u16, long); 994 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 995 long, 996 int (*reply_cb)(struct qeth_card *, 997 struct qeth_reply *, unsigned long), 998 void *); 999 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1000 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1001 enum qeth_ipa_funcs, 1002 __u16, __u16, 1003 enum qeth_prot_versions); 1004 int qeth_set_features(struct net_device *, netdev_features_t); 1005 void qeth_recover_features(struct net_device *dev); 1006 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1007 netdev_features_t qeth_features_check(struct sk_buff *skb, 1008 struct net_device *dev, 1009 netdev_features_t features); 1010 int qeth_vm_request_mac(struct qeth_card *card); 1011 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len); 1012 1013 /* exports for OSN */ 1014 int qeth_osn_assist(struct net_device *, void *, int); 1015 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1016 int (*assist_cb)(struct net_device *, void *), 1017 int (*data_cb)(struct sk_buff *)); 1018 void qeth_osn_deregister(struct net_device *); 1019 1020 #endif /* __QETH_CORE_H__ */ 1021