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 unsigned int buf_elements_sent; 108 109 unsigned int skbs_sent_pack; 110 unsigned int bufs_sent_pack; 111 112 unsigned int sc_dp_p; 113 unsigned int sc_p_dp; 114 /* qdio_cq_handler: number of times called, time spent in */ 115 __u64 cq_start_time; 116 unsigned int cq_cnt; 117 unsigned int cq_time; 118 /* qdio_input_handler: number of times called, time spent in */ 119 __u64 inbound_start_time; 120 unsigned int inbound_cnt; 121 unsigned int inbound_time; 122 /* qeth_send_packet: number of times called, time spent in */ 123 __u64 outbound_start_time; 124 unsigned int outbound_cnt; 125 unsigned int outbound_time; 126 /* qdio_output_handler: number of times called, time spent in */ 127 __u64 outbound_handler_start_time; 128 unsigned int outbound_handler_cnt; 129 unsigned int outbound_handler_time; 130 /* number of calls to and time spent in do_QDIO for inbound queue */ 131 __u64 inbound_do_qdio_start_time; 132 unsigned int inbound_do_qdio_cnt; 133 unsigned int inbound_do_qdio_time; 134 /* number of calls to and time spent in do_QDIO for outbound queues */ 135 __u64 outbound_do_qdio_start_time; 136 unsigned int outbound_do_qdio_cnt; 137 unsigned int outbound_do_qdio_time; 138 unsigned int large_send_bytes; 139 unsigned int large_send_cnt; 140 unsigned int sg_skbs_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 unsigned int rx_csum; 152 }; 153 154 /* Routing stuff */ 155 struct qeth_routing_info { 156 enum qeth_routing_types type; 157 }; 158 159 /* IPA stuff */ 160 struct qeth_ipa_info { 161 __u32 supported_funcs; 162 __u32 enabled_funcs; 163 }; 164 165 /* SETBRIDGEPORT stuff */ 166 enum qeth_sbp_roles { 167 QETH_SBP_ROLE_NONE = 0, 168 QETH_SBP_ROLE_PRIMARY = 1, 169 QETH_SBP_ROLE_SECONDARY = 2, 170 }; 171 172 enum qeth_sbp_states { 173 QETH_SBP_STATE_INACTIVE = 0, 174 QETH_SBP_STATE_STANDBY = 1, 175 QETH_SBP_STATE_ACTIVE = 2, 176 }; 177 178 #define QETH_SBP_HOST_NOTIFICATION 1 179 180 struct qeth_sbp_info { 181 __u32 supported_funcs; 182 enum qeth_sbp_roles role; 183 __u32 hostnotification:1; 184 __u32 reflect_promisc:1; 185 __u32 reflect_promisc_primary:1; 186 }; 187 188 struct qeth_vnicc_info { 189 /* supported/currently configured VNICCs; updated in IPA exchanges */ 190 u32 sup_chars; 191 u32 cur_chars; 192 /* supported commands: bitmasks which VNICCs support respective cmd */ 193 u32 set_char_sup; 194 u32 getset_timeout_sup; 195 /* timeout value for the learning characteristic */ 196 u32 learning_timeout; 197 /* characteristics wanted/configured by user */ 198 u32 wanted_chars; 199 /* has user explicitly enabled rx_bcast while online? */ 200 bool rx_bcast_enabled; 201 }; 202 203 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 204 enum qeth_ipa_funcs func) 205 { 206 return (ipa->supported_funcs & func); 207 } 208 209 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 210 enum qeth_ipa_funcs func) 211 { 212 return (ipa->supported_funcs & ipa->enabled_funcs & func); 213 } 214 215 #define qeth_adp_supported(c, f) \ 216 qeth_is_ipa_supported(&c->options.adp, f) 217 #define qeth_adp_enabled(c, f) \ 218 qeth_is_ipa_enabled(&c->options.adp, f) 219 #define qeth_is_supported(c, f) \ 220 qeth_is_ipa_supported(&c->options.ipa4, f) 221 #define qeth_is_enabled(c, f) \ 222 qeth_is_ipa_enabled(&c->options.ipa4, f) 223 #define qeth_is_supported6(c, f) \ 224 qeth_is_ipa_supported(&c->options.ipa6, f) 225 #define qeth_is_enabled6(c, f) \ 226 qeth_is_ipa_enabled(&c->options.ipa6, f) 227 #define qeth_is_ipafunc_supported(c, prot, f) \ 228 ((prot == QETH_PROT_IPV6) ? \ 229 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 230 #define qeth_is_ipafunc_enabled(c, prot, f) \ 231 ((prot == QETH_PROT_IPV6) ? \ 232 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 233 234 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 235 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 236 237 #define QETH_BUFSIZE 4096 238 #define CCW_CMD_WRITE 0x01 239 #define CCW_CMD_READ 0x02 240 241 /** 242 * some more defs 243 */ 244 #define QETH_TX_TIMEOUT 100 * HZ 245 #define QETH_RCD_TIMEOUT 60 * HZ 246 #define QETH_RECLAIM_WORK_TIME HZ 247 #define QETH_MAX_PORTNO 15 248 249 /*IPv6 address autoconfiguration stuff*/ 250 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 251 #define UNIQUE_ID_NOT_BY_CARD 0x10000 252 253 /*****************************************************************************/ 254 /* QDIO queue and buffer handling */ 255 /*****************************************************************************/ 256 #define QETH_MAX_QUEUES 4 257 #define QETH_IN_BUF_SIZE_DEFAULT 65536 258 #define QETH_IN_BUF_COUNT_DEFAULT 64 259 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 260 #define QETH_IN_BUF_COUNT_MIN 8 261 #define QETH_IN_BUF_COUNT_MAX 128 262 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 263 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 264 ((card)->qdio.in_buf_pool.buf_count / 2) 265 266 /* buffers we have to be behind before we get a PCI */ 267 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 268 /*enqueued free buffers left before we get a PCI*/ 269 #define QETH_PCI_THRESHOLD_B(card) 0 270 /*not used unless the microcode gets patched*/ 271 #define QETH_PCI_TIMER_VALUE(card) 3 272 273 /* priority queing */ 274 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 275 #define QETH_DEFAULT_QUEUE 2 276 #define QETH_NO_PRIO_QUEUEING 0 277 #define QETH_PRIO_Q_ING_PREC 1 278 #define QETH_PRIO_Q_ING_TOS 2 279 #define QETH_PRIO_Q_ING_SKB 3 280 #define QETH_PRIO_Q_ING_VLAN 4 281 282 /* Packing */ 283 #define QETH_LOW_WATERMARK_PACK 2 284 #define QETH_HIGH_WATERMARK_PACK 5 285 #define QETH_WATERMARK_PACK_FUZZ 1 286 287 /* large receive scatter gather copy break */ 288 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 289 #define QETH_RX_PULL_LEN 256 290 291 struct qeth_hdr_layer3 { 292 __u8 id; 293 __u8 flags; 294 __u16 inbound_checksum; /*TSO:__u16 seqno */ 295 __u32 token; /*TSO: __u32 reserved */ 296 __u16 length; 297 __u8 vlan_prio; 298 __u8 ext_flags; 299 __u16 vlan_id; 300 __u16 frame_offset; 301 union { 302 /* TX: */ 303 u8 ipv6_addr[16]; 304 struct ipv4 { 305 u8 res[12]; 306 u32 addr; 307 } ipv4; 308 /* RX: */ 309 struct rx { 310 u8 res1[2]; 311 u8 src_mac[6]; 312 u8 res2[4]; 313 u16 vlan_id; 314 u8 res3[2]; 315 } rx; 316 } next_hop; 317 }; 318 319 struct qeth_hdr_layer2 { 320 __u8 id; 321 __u8 flags[3]; 322 __u8 port_no; 323 __u8 hdr_length; 324 __u16 pkt_length; 325 __u16 seq_no; 326 __u16 vlan_id; 327 __u32 reserved; 328 __u8 reserved2[16]; 329 } __attribute__ ((packed)); 330 331 struct qeth_hdr_osn { 332 __u8 id; 333 __u8 reserved; 334 __u16 seq_no; 335 __u16 reserved2; 336 __u16 control_flags; 337 __u16 pdu_length; 338 __u8 reserved3[18]; 339 __u32 ccid; 340 } __attribute__ ((packed)); 341 342 struct qeth_hdr { 343 union { 344 struct qeth_hdr_layer2 l2; 345 struct qeth_hdr_layer3 l3; 346 struct qeth_hdr_osn osn; 347 } hdr; 348 } __attribute__ ((packed)); 349 350 /*TCP Segmentation Offload header*/ 351 struct qeth_hdr_ext_tso { 352 __u16 hdr_tot_len; 353 __u8 imb_hdr_no; 354 __u8 reserved; 355 __u8 hdr_type; 356 __u8 hdr_version; 357 __u16 hdr_len; 358 __u32 payload_len; 359 __u16 mss; 360 __u16 dg_hdr_len; 361 __u8 padding[16]; 362 } __attribute__ ((packed)); 363 364 struct qeth_hdr_tso { 365 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 366 struct qeth_hdr_ext_tso ext; 367 } __attribute__ ((packed)); 368 369 370 /* flags for qeth_hdr.flags */ 371 #define QETH_HDR_PASSTHRU 0x10 372 #define QETH_HDR_IPV6 0x80 373 #define QETH_HDR_CAST_MASK 0x07 374 enum qeth_cast_flags { 375 QETH_CAST_UNICAST = 0x06, 376 QETH_CAST_MULTICAST = 0x04, 377 QETH_CAST_BROADCAST = 0x05, 378 QETH_CAST_ANYCAST = 0x07, 379 QETH_CAST_NOCAST = 0x00, 380 }; 381 382 enum qeth_layer2_frame_flags { 383 QETH_LAYER2_FLAG_MULTICAST = 0x01, 384 QETH_LAYER2_FLAG_BROADCAST = 0x02, 385 QETH_LAYER2_FLAG_UNICAST = 0x04, 386 QETH_LAYER2_FLAG_VLAN = 0x10, 387 }; 388 389 enum qeth_header_ids { 390 QETH_HEADER_TYPE_LAYER3 = 0x01, 391 QETH_HEADER_TYPE_LAYER2 = 0x02, 392 QETH_HEADER_TYPE_TSO = 0x03, 393 QETH_HEADER_TYPE_OSN = 0x04, 394 }; 395 /* flags for qeth_hdr.ext_flags */ 396 #define QETH_HDR_EXT_VLAN_FRAME 0x01 397 #define QETH_HDR_EXT_TOKEN_ID 0x02 398 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 399 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 400 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 401 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 402 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 403 404 enum qeth_qdio_buffer_states { 405 /* 406 * inbound: read out by driver; owned by hardware in order to be filled 407 * outbound: owned by driver in order to be filled 408 */ 409 QETH_QDIO_BUF_EMPTY, 410 /* 411 * inbound: filled by hardware; owned by driver in order to be read out 412 * outbound: filled by driver; owned by hardware in order to be sent 413 */ 414 QETH_QDIO_BUF_PRIMED, 415 /* 416 * inbound: not applicable 417 * outbound: identified to be pending in TPQ 418 */ 419 QETH_QDIO_BUF_PENDING, 420 /* 421 * inbound: not applicable 422 * outbound: found in completion queue 423 */ 424 QETH_QDIO_BUF_IN_CQ, 425 /* 426 * inbound: not applicable 427 * outbound: handled via transfer pending / completion queue 428 */ 429 QETH_QDIO_BUF_HANDLED_DELAYED, 430 }; 431 432 enum qeth_qdio_info_states { 433 QETH_QDIO_UNINITIALIZED, 434 QETH_QDIO_ALLOCATED, 435 QETH_QDIO_ESTABLISHED, 436 QETH_QDIO_CLEANING 437 }; 438 439 struct qeth_buffer_pool_entry { 440 struct list_head list; 441 struct list_head init_list; 442 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 443 }; 444 445 struct qeth_qdio_buffer_pool { 446 struct list_head entry_list; 447 int buf_count; 448 }; 449 450 struct qeth_qdio_buffer { 451 struct qdio_buffer *buffer; 452 /* the buffer pool entry currently associated to this buffer */ 453 struct qeth_buffer_pool_entry *pool_entry; 454 struct sk_buff *rx_skb; 455 }; 456 457 struct qeth_qdio_q { 458 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 459 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 460 int next_buf_to_init; 461 }; 462 463 struct qeth_qdio_out_buffer { 464 struct qdio_buffer *buffer; 465 atomic_t state; 466 int next_element_to_fill; 467 struct sk_buff_head skb_list; 468 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 469 470 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_cmd_buffer_state { 560 BUF_STATE_FREE, 561 BUF_STATE_LOCKED, 562 }; 563 564 enum qeth_cq { 565 QETH_CQ_DISABLED = 0, 566 QETH_CQ_ENABLED = 1, 567 QETH_CQ_NOTAVAILABLE = 2, 568 }; 569 570 struct qeth_ipato { 571 bool enabled; 572 bool invert4; 573 bool invert6; 574 struct list_head entries; 575 }; 576 577 struct qeth_channel; 578 579 struct qeth_cmd_buffer { 580 enum qeth_cmd_buffer_state state; 581 struct qeth_channel *channel; 582 unsigned char *data; 583 int rc; 584 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); 585 }; 586 587 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 588 { 589 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 590 } 591 592 /** 593 * definition of a qeth channel, used for read and write 594 */ 595 struct qeth_channel { 596 enum qeth_channel_states state; 597 struct ccw1 *ccw; 598 spinlock_t iob_lock; 599 wait_queue_head_t wait_q; 600 struct ccw_device *ccwdev; 601 /*command buffer for control data*/ 602 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 603 atomic_t irq_pending; 604 int io_buf_no; 605 }; 606 607 /** 608 * OSA card related definitions 609 */ 610 struct qeth_token { 611 __u32 issuer_rm_w; 612 __u32 issuer_rm_r; 613 __u32 cm_filter_w; 614 __u32 cm_filter_r; 615 __u32 cm_connection_w; 616 __u32 cm_connection_r; 617 __u32 ulp_filter_w; 618 __u32 ulp_filter_r; 619 __u32 ulp_connection_w; 620 __u32 ulp_connection_r; 621 }; 622 623 struct qeth_seqno { 624 __u32 trans_hdr; 625 __u32 pdu_hdr; 626 __u32 pdu_hdr_ack; 627 __u16 ipa; 628 __u32 pkt_seqno; 629 }; 630 631 struct qeth_reply { 632 struct list_head list; 633 wait_queue_head_t wait_q; 634 int (*callback)(struct qeth_card *, struct qeth_reply *, 635 unsigned long); 636 u32 seqno; 637 unsigned long offset; 638 atomic_t received; 639 int rc; 640 void *param; 641 struct qeth_card *card; 642 refcount_t refcnt; 643 }; 644 645 struct qeth_card_blkt { 646 int time_total; 647 int inter_packet; 648 int inter_packet_jumbo; 649 }; 650 651 #define QETH_BROADCAST_WITH_ECHO 0x01 652 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 653 #define QETH_LAYER2_MAC_READ 0x01 654 #define QETH_LAYER2_MAC_REGISTERED 0x02 655 struct qeth_card_info { 656 unsigned short unit_addr2; 657 unsigned short cula; 658 unsigned short chpid; 659 __u16 func_level; 660 char mcl_level[QETH_MCL_LENGTH + 1]; 661 int guestlan; 662 int mac_bits; 663 enum qeth_card_types type; 664 enum qeth_link_types link_type; 665 int broadcast_capable; 666 int unique_id; 667 bool layer_enforced; 668 struct qeth_card_blkt blkt; 669 enum qeth_ipa_promisc_modes promisc_mode; 670 __u32 diagass_support; 671 __u32 hwtrap; 672 }; 673 674 struct qeth_card_options { 675 struct qeth_routing_info route4; 676 struct qeth_ipa_info ipa4; 677 struct qeth_ipa_info adp; /*Adapter parameters*/ 678 struct qeth_routing_info route6; 679 struct qeth_ipa_info ipa6; 680 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 681 struct qeth_vnicc_info vnicc; /* VNICC options */ 682 int fake_broadcast; 683 int layer2; 684 int performance_stats; 685 int rx_sg_cb; 686 enum qeth_ipa_isolation_modes isolation; 687 enum qeth_ipa_isolation_modes prev_isolation; 688 int sniffer; 689 enum qeth_cq cq; 690 char hsuid[9]; 691 }; 692 693 /* 694 * thread bits for qeth_card thread masks 695 */ 696 enum qeth_threads { 697 QETH_RECOVER_THREAD = 1, 698 }; 699 700 struct qeth_osn_info { 701 int (*assist_cb)(struct net_device *dev, void *data); 702 int (*data_cb)(struct sk_buff *skb); 703 }; 704 705 enum qeth_discipline_id { 706 QETH_DISCIPLINE_UNDETERMINED = -1, 707 QETH_DISCIPLINE_LAYER3 = 0, 708 QETH_DISCIPLINE_LAYER2 = 1, 709 }; 710 711 struct qeth_discipline { 712 const struct device_type *devtype; 713 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 714 int (*recover)(void *ptr); 715 int (*setup) (struct ccwgroup_device *); 716 void (*remove) (struct ccwgroup_device *); 717 int (*set_online) (struct ccwgroup_device *); 718 int (*set_offline) (struct ccwgroup_device *); 719 int (*freeze)(struct ccwgroup_device *); 720 int (*thaw) (struct ccwgroup_device *); 721 int (*restore)(struct ccwgroup_device *); 722 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 723 int (*control_event_handler)(struct qeth_card *card, 724 struct qeth_ipa_cmd *cmd); 725 }; 726 727 struct qeth_vlan_vid { 728 struct list_head list; 729 unsigned short vid; 730 }; 731 732 enum qeth_addr_disposition { 733 QETH_DISP_ADDR_DELETE = 0, 734 QETH_DISP_ADDR_DO_NOTHING = 1, 735 QETH_DISP_ADDR_ADD = 2, 736 }; 737 738 struct qeth_rx { 739 int b_count; 740 int b_index; 741 struct qdio_buffer_element *b_element; 742 int e_offset; 743 int qdio_err; 744 }; 745 746 struct carrier_info { 747 __u8 card_type; 748 __u16 port_mode; 749 __u32 port_speed; 750 }; 751 752 struct qeth_switch_info { 753 __u32 capabilities; 754 __u32 settings; 755 }; 756 757 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 758 759 struct qeth_card { 760 struct list_head list; 761 enum qeth_card_states state; 762 int lan_online; 763 spinlock_t lock; 764 struct ccwgroup_device *gdev; 765 struct qeth_channel read; 766 struct qeth_channel write; 767 struct qeth_channel data; 768 769 struct net_device *dev; 770 struct net_device_stats stats; 771 772 struct qeth_card_info info; 773 struct qeth_token token; 774 struct qeth_seqno seqno; 775 struct qeth_card_options options; 776 777 wait_queue_head_t wait_q; 778 spinlock_t mclock; 779 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 780 struct mutex vid_list_mutex; /* vid_list */ 781 struct list_head vid_list; 782 DECLARE_HASHTABLE(mac_htable, 4); 783 DECLARE_HASHTABLE(ip_htable, 4); 784 DECLARE_HASHTABLE(ip_mc_htable, 4); 785 struct work_struct kernel_thread_starter; 786 spinlock_t thread_mask_lock; 787 unsigned long thread_start_mask; 788 unsigned long thread_allowed_mask; 789 unsigned long thread_running_mask; 790 struct task_struct *recovery_task; 791 spinlock_t ip_lock; 792 struct qeth_ipato ipato; 793 struct list_head cmd_waiter_list; 794 /* QDIO buffer handling */ 795 struct qeth_qdio_info qdio; 796 struct qeth_perf_stats perf_stats; 797 int read_or_write_problem; 798 struct qeth_osn_info osn_info; 799 struct qeth_discipline *discipline; 800 atomic_t force_alloc_skb; 801 struct service_level qeth_service_level; 802 struct qdio_ssqd_desc ssqd; 803 debug_info_t *debug; 804 struct mutex conf_mutex; 805 struct mutex discipline_mutex; 806 struct napi_struct napi; 807 struct qeth_rx rx; 808 struct delayed_work buffer_reclaim_work; 809 int reclaim_index; 810 struct work_struct close_dev_work; 811 }; 812 813 struct qeth_card_list_struct { 814 struct list_head list; 815 rwlock_t rwlock; 816 }; 817 818 struct qeth_trap_id { 819 __u16 lparnr; 820 char vmname[8]; 821 __u8 chpid; 822 __u8 ssid; 823 __u16 devno; 824 } __packed; 825 826 /*some helper functions*/ 827 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 828 829 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 830 unsigned int elements) 831 { 832 unsigned int i; 833 834 for (i = 0; i < elements; i++) 835 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 836 buf->element[14].sflags = 0; 837 buf->element[15].sflags = 0; 838 } 839 840 /** 841 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 842 * @start: Start of the address range. 843 * @end: Address after the end of the range. 844 * 845 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 846 * the specified address range. 847 */ 848 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 849 { 850 return PFN_UP(end) - PFN_DOWN(start); 851 } 852 853 static inline int qeth_get_micros(void) 854 { 855 return (int) (get_tod_clock() >> 12); 856 } 857 858 static inline int qeth_get_ip_version(struct sk_buff *skb) 859 { 860 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 861 __be16 prot = veth->h_vlan_proto; 862 863 if (prot == htons(ETH_P_8021Q)) 864 prot = veth->h_vlan_encapsulated_proto; 865 866 switch (prot) { 867 case htons(ETH_P_IPV6): 868 return 6; 869 case htons(ETH_P_IP): 870 return 4; 871 default: 872 return 0; 873 } 874 } 875 876 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 877 u8 flags) 878 { 879 if ((card->dev->features & NETIF_F_RXCSUM) && 880 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 881 skb->ip_summed = CHECKSUM_UNNECESSARY; 882 if (card->options.performance_stats) 883 card->perf_stats.rx_csum++; 884 } else { 885 skb->ip_summed = CHECKSUM_NONE; 886 } 887 } 888 889 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 890 { 891 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 892 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 893 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 894 *flags |= QETH_HDR_EXT_UDP; 895 if (ipv == 4) { 896 /* some HW requires combined L3+L4 csum offload: */ 897 *flags |= QETH_HDR_EXT_CSUM_HDR_REQ; 898 ip_hdr(skb)->check = 0; 899 } 900 } 901 902 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 903 struct qeth_buffer_pool_entry *entry) 904 { 905 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 906 } 907 908 static inline int qeth_is_diagass_supported(struct qeth_card *card, 909 enum qeth_diags_cmds cmd) 910 { 911 return card->info.diagass_support & (__u32)cmd; 912 } 913 914 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 915 enum qeth_ipa_funcs ipa_func, 916 u16 cmd_code, long data, 917 enum qeth_prot_versions prot); 918 /* IPv4 variant */ 919 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 920 enum qeth_ipa_funcs ipa_func, 921 u16 cmd_code, long data) 922 { 923 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 924 data, QETH_PROT_IPV4); 925 } 926 927 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 928 enum qeth_ipa_funcs ipa_func, 929 u16 cmd_code, long data) 930 { 931 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 932 data, QETH_PROT_IPV6); 933 } 934 935 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 936 int ipv); 937 static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card, 938 struct sk_buff *skb, 939 int ipv, int cast_type) 940 { 941 if (IS_IQD(card) && cast_type != RTN_UNICAST) 942 return card->qdio.out_qs[card->qdio.no_out_queues - 1]; 943 if (!card->qdio.do_prio_queueing) 944 return card->qdio.out_qs[card->qdio.default_out_queue]; 945 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)]; 946 } 947 948 extern struct qeth_discipline qeth_l2_discipline; 949 extern struct qeth_discipline qeth_l3_discipline; 950 extern const struct attribute_group *qeth_generic_attr_groups[]; 951 extern const struct attribute_group *qeth_osn_attr_groups[]; 952 extern const struct attribute_group qeth_device_attr_group; 953 extern const struct attribute_group qeth_device_blkt_group; 954 extern const struct device_type qeth_generic_devtype; 955 extern struct workqueue_struct *qeth_wq; 956 957 int qeth_card_hw_is_reachable(struct qeth_card *); 958 const char *qeth_get_cardname_short(struct qeth_card *); 959 int qeth_realloc_buffer_pool(struct qeth_card *, int); 960 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 961 void qeth_core_free_discipline(struct qeth_card *); 962 963 /* exports for qeth discipline device drivers */ 964 extern struct qeth_card_list_struct qeth_core_card_list; 965 extern struct kmem_cache *qeth_core_header_cache; 966 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 967 968 struct net_device *qeth_clone_netdev(struct net_device *orig); 969 void qeth_set_recovery_task(struct qeth_card *); 970 void qeth_clear_recovery_task(struct qeth_card *); 971 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 972 int qeth_threads_running(struct qeth_card *, unsigned long); 973 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 974 int qeth_do_run_thread(struct qeth_card *, unsigned long); 975 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 976 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 977 int qeth_core_hardsetup_card(struct qeth_card *); 978 void qeth_print_status_message(struct qeth_card *); 979 int qeth_init_qdio_queues(struct qeth_card *); 980 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 981 int (*reply_cb) 982 (struct qeth_card *, struct qeth_reply *, unsigned long), 983 void *); 984 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 985 enum qeth_ipa_cmds, enum qeth_prot_versions); 986 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 987 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 988 struct qeth_hdr **); 989 void qeth_schedule_recovery(struct qeth_card *); 990 int qeth_poll(struct napi_struct *napi, int budget); 991 void qeth_clear_ipacmd_list(struct qeth_card *); 992 int qeth_qdio_clear_card(struct qeth_card *, int); 993 void qeth_clear_working_pool_list(struct qeth_card *); 994 void qeth_clear_cmd_buffers(struct qeth_channel *); 995 void qeth_clear_qdio_buffers(struct qeth_card *); 996 void qeth_setadp_promisc_mode(struct qeth_card *); 997 struct net_device_stats *qeth_get_stats(struct net_device *); 998 int qeth_setadpparms_change_macaddr(struct qeth_card *); 999 void qeth_tx_timeout(struct net_device *); 1000 void qeth_prepare_control_data(struct qeth_card *, int, 1001 struct qeth_cmd_buffer *); 1002 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 1003 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob); 1004 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 1005 int qeth_query_switch_attributes(struct qeth_card *card, 1006 struct qeth_switch_info *sw_info); 1007 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 1008 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 1009 void *reply_param); 1010 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, 1011 int extra_elems, int data_offset); 1012 int qeth_get_elements_for_frags(struct sk_buff *); 1013 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 1014 struct qeth_hdr *hdr, unsigned int offset, 1015 unsigned int hd_len); 1016 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1017 struct sk_buff *skb, struct qeth_hdr *hdr, 1018 unsigned int offset, unsigned int hd_len, 1019 int elements_needed); 1020 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1021 int qeth_core_get_sset_count(struct net_device *, int); 1022 void qeth_core_get_ethtool_stats(struct net_device *, 1023 struct ethtool_stats *, u64 *); 1024 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1025 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1026 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1027 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1028 struct ethtool_link_ksettings *cmd); 1029 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1030 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); 1031 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1032 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1033 void qeth_trace_features(struct qeth_card *); 1034 void qeth_close_dev(struct qeth_card *); 1035 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 1036 long, 1037 int (*reply_cb)(struct qeth_card *, 1038 struct qeth_reply *, unsigned long), 1039 void *); 1040 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1041 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1042 enum qeth_ipa_funcs, 1043 __u16, __u16, 1044 enum qeth_prot_versions); 1045 int qeth_set_features(struct net_device *, netdev_features_t); 1046 void qeth_enable_hw_features(struct net_device *dev); 1047 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1048 netdev_features_t qeth_features_check(struct sk_buff *skb, 1049 struct net_device *dev, 1050 netdev_features_t features); 1051 int qeth_vm_request_mac(struct qeth_card *card); 1052 int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 1053 struct qeth_hdr **hdr, unsigned int hdr_len, 1054 unsigned int proto_len, unsigned int *elements); 1055 1056 /* exports for OSN */ 1057 int qeth_osn_assist(struct net_device *, void *, int); 1058 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1059 int (*assist_cb)(struct net_device *, void *), 1060 int (*data_cb)(struct sk_buff *)); 1061 void qeth_osn_deregister(struct net_device *); 1062 1063 #endif /* __QETH_CORE_H__ */ 1064