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 #include <net/tcp.h> 30 31 #include <asm/debug.h> 32 #include <asm/qdio.h> 33 #include <asm/ccwdev.h> 34 #include <asm/ccwgroup.h> 35 #include <asm/sysinfo.h> 36 37 #include "qeth_core_mpc.h" 38 39 /** 40 * Debug Facility stuff 41 */ 42 enum qeth_dbf_names { 43 QETH_DBF_SETUP, 44 QETH_DBF_MSG, 45 QETH_DBF_CTRL, 46 QETH_DBF_INFOS /* must be last element */ 47 }; 48 49 struct qeth_dbf_info { 50 char name[DEBUG_MAX_NAME_LEN]; 51 int pages; 52 int areas; 53 int len; 54 int level; 55 struct debug_view *view; 56 debug_info_t *id; 57 }; 58 59 #define QETH_DBF_CTRL_LEN 256 60 61 #define QETH_DBF_TEXT(name, level, text) \ 62 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 63 64 #define QETH_DBF_HEX(name, level, addr, len) \ 65 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 66 67 #define QETH_DBF_MESSAGE(level, text...) \ 68 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 69 70 #define QETH_DBF_TEXT_(name, level, text...) \ 71 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 72 73 #define QETH_CARD_TEXT(card, level, text) \ 74 debug_text_event(card->debug, level, text) 75 76 #define QETH_CARD_HEX(card, level, addr, len) \ 77 debug_event(card->debug, level, (void *)(addr), len) 78 79 #define QETH_CARD_MESSAGE(card, text...) \ 80 debug_sprintf_event(card->debug, level, text) 81 82 #define QETH_CARD_TEXT_(card, level, text...) \ 83 qeth_dbf_longtext(card->debug, level, text) 84 85 #define SENSE_COMMAND_REJECT_BYTE 0 86 #define SENSE_COMMAND_REJECT_FLAG 0x80 87 #define SENSE_RESETTING_EVENT_BYTE 1 88 #define SENSE_RESETTING_EVENT_FLAG 0x80 89 90 /* 91 * Common IO related definitions 92 */ 93 #define CARD_RDEV(card) card->read.ccwdev 94 #define CARD_WDEV(card) card->write.ccwdev 95 #define CARD_DDEV(card) card->data.ccwdev 96 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 97 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 98 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 99 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 100 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) 101 102 /** 103 * card stuff 104 */ 105 struct qeth_perf_stats { 106 unsigned int bufs_rec; 107 unsigned int bufs_sent; 108 unsigned int buf_elements_sent; 109 110 unsigned int skbs_sent_pack; 111 unsigned int bufs_sent_pack; 112 113 unsigned int sc_dp_p; 114 unsigned int sc_p_dp; 115 /* qdio_cq_handler: number of times called, time spent in */ 116 __u64 cq_start_time; 117 unsigned int cq_cnt; 118 unsigned int cq_time; 119 /* qdio_input_handler: number of times called, time spent in */ 120 __u64 inbound_start_time; 121 unsigned int inbound_cnt; 122 unsigned int inbound_time; 123 /* qeth_send_packet: number of times called, time spent in */ 124 __u64 outbound_start_time; 125 unsigned int outbound_cnt; 126 unsigned int outbound_time; 127 /* qdio_output_handler: number of times called, time spent in */ 128 __u64 outbound_handler_start_time; 129 unsigned int outbound_handler_cnt; 130 unsigned int outbound_handler_time; 131 /* number of calls to and time spent in do_QDIO for inbound queue */ 132 __u64 inbound_do_qdio_start_time; 133 unsigned int inbound_do_qdio_cnt; 134 unsigned int inbound_do_qdio_time; 135 /* number of calls to and time spent in do_QDIO for outbound queues */ 136 __u64 outbound_do_qdio_start_time; 137 unsigned int outbound_do_qdio_cnt; 138 unsigned int outbound_do_qdio_time; 139 unsigned int large_send_bytes; 140 unsigned int large_send_cnt; 141 unsigned int sg_skbs_sent; 142 /* initial values when measuring starts */ 143 unsigned long initial_rx_packets; 144 unsigned long initial_tx_packets; 145 /* inbound scatter gather data */ 146 unsigned int sg_skbs_rx; 147 unsigned int sg_frags_rx; 148 unsigned int sg_alloc_page_rx; 149 unsigned int tx_csum; 150 unsigned int tx_lin; 151 unsigned int tx_linfail; 152 unsigned int rx_csum; 153 }; 154 155 /* Routing stuff */ 156 struct qeth_routing_info { 157 enum qeth_routing_types type; 158 }; 159 160 /* IPA stuff */ 161 struct qeth_ipa_info { 162 __u32 supported_funcs; 163 __u32 enabled_funcs; 164 }; 165 166 /* SETBRIDGEPORT stuff */ 167 enum qeth_sbp_roles { 168 QETH_SBP_ROLE_NONE = 0, 169 QETH_SBP_ROLE_PRIMARY = 1, 170 QETH_SBP_ROLE_SECONDARY = 2, 171 }; 172 173 enum qeth_sbp_states { 174 QETH_SBP_STATE_INACTIVE = 0, 175 QETH_SBP_STATE_STANDBY = 1, 176 QETH_SBP_STATE_ACTIVE = 2, 177 }; 178 179 #define QETH_SBP_HOST_NOTIFICATION 1 180 181 struct qeth_sbp_info { 182 __u32 supported_funcs; 183 enum qeth_sbp_roles role; 184 __u32 hostnotification:1; 185 __u32 reflect_promisc:1; 186 __u32 reflect_promisc_primary:1; 187 }; 188 189 struct qeth_vnicc_info { 190 /* supported/currently configured VNICCs; updated in IPA exchanges */ 191 u32 sup_chars; 192 u32 cur_chars; 193 /* supported commands: bitmasks which VNICCs support respective cmd */ 194 u32 set_char_sup; 195 u32 getset_timeout_sup; 196 /* timeout value for the learning characteristic */ 197 u32 learning_timeout; 198 /* characteristics wanted/configured by user */ 199 u32 wanted_chars; 200 /* has user explicitly enabled rx_bcast while online? */ 201 bool rx_bcast_enabled; 202 }; 203 204 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 205 enum qeth_ipa_funcs func) 206 { 207 return (ipa->supported_funcs & func); 208 } 209 210 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 211 enum qeth_ipa_funcs func) 212 { 213 return (ipa->supported_funcs & ipa->enabled_funcs & func); 214 } 215 216 #define qeth_adp_supported(c, f) \ 217 qeth_is_ipa_supported(&c->options.adp, f) 218 #define qeth_adp_enabled(c, f) \ 219 qeth_is_ipa_enabled(&c->options.adp, f) 220 #define qeth_is_supported(c, f) \ 221 qeth_is_ipa_supported(&c->options.ipa4, f) 222 #define qeth_is_enabled(c, f) \ 223 qeth_is_ipa_enabled(&c->options.ipa4, f) 224 #define qeth_is_supported6(c, f) \ 225 qeth_is_ipa_supported(&c->options.ipa6, f) 226 #define qeth_is_enabled6(c, f) \ 227 qeth_is_ipa_enabled(&c->options.ipa6, f) 228 #define qeth_is_ipafunc_supported(c, prot, f) \ 229 ((prot == QETH_PROT_IPV6) ? \ 230 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 231 #define qeth_is_ipafunc_enabled(c, prot, f) \ 232 ((prot == QETH_PROT_IPV6) ? \ 233 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 234 235 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 236 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 237 238 #define QETH_BUFSIZE 4096 239 #define CCW_CMD_WRITE 0x01 240 #define CCW_CMD_READ 0x02 241 242 /** 243 * some more defs 244 */ 245 #define QETH_TX_TIMEOUT 100 * HZ 246 #define QETH_RCD_TIMEOUT 60 * HZ 247 #define QETH_RECLAIM_WORK_TIME HZ 248 #define QETH_MAX_PORTNO 15 249 250 /*IPv6 address autoconfiguration stuff*/ 251 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 252 #define UNIQUE_ID_NOT_BY_CARD 0x10000 253 254 /*****************************************************************************/ 255 /* QDIO queue and buffer handling */ 256 /*****************************************************************************/ 257 #define QETH_MAX_QUEUES 4 258 #define QETH_IN_BUF_SIZE_DEFAULT 65536 259 #define QETH_IN_BUF_COUNT_DEFAULT 64 260 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 261 #define QETH_IN_BUF_COUNT_MIN 8 262 #define QETH_IN_BUF_COUNT_MAX 128 263 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 264 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 265 ((card)->qdio.in_buf_pool.buf_count / 2) 266 267 /* buffers we have to be behind before we get a PCI */ 268 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 269 /*enqueued free buffers left before we get a PCI*/ 270 #define QETH_PCI_THRESHOLD_B(card) 0 271 /*not used unless the microcode gets patched*/ 272 #define QETH_PCI_TIMER_VALUE(card) 3 273 274 /* priority queing */ 275 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 276 #define QETH_DEFAULT_QUEUE 2 277 #define QETH_NO_PRIO_QUEUEING 0 278 #define QETH_PRIO_Q_ING_PREC 1 279 #define QETH_PRIO_Q_ING_TOS 2 280 #define QETH_PRIO_Q_ING_SKB 3 281 #define QETH_PRIO_Q_ING_VLAN 4 282 283 /* Packing */ 284 #define QETH_LOW_WATERMARK_PACK 2 285 #define QETH_HIGH_WATERMARK_PACK 5 286 #define QETH_WATERMARK_PACK_FUZZ 1 287 288 /* large receive scatter gather copy break */ 289 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 290 #define QETH_RX_PULL_LEN 256 291 292 struct qeth_hdr_layer3 { 293 __u8 id; 294 __u8 flags; 295 __u16 inbound_checksum; /*TSO:__u16 seqno */ 296 __u32 token; /*TSO: __u32 reserved */ 297 __u16 length; 298 __u8 vlan_prio; 299 __u8 ext_flags; 300 __u16 vlan_id; 301 __u16 frame_offset; 302 union { 303 /* TX: */ 304 u8 ipv6_addr[16]; 305 struct ipv4 { 306 u8 res[12]; 307 u32 addr; 308 } ipv4; 309 /* RX: */ 310 struct rx { 311 u8 res1[2]; 312 u8 src_mac[6]; 313 u8 res2[4]; 314 u16 vlan_id; 315 u8 res3[2]; 316 } rx; 317 } next_hop; 318 }; 319 320 struct qeth_hdr_layer2 { 321 __u8 id; 322 __u8 flags[3]; 323 __u8 port_no; 324 __u8 hdr_length; 325 __u16 pkt_length; 326 __u16 seq_no; 327 __u16 vlan_id; 328 __u32 reserved; 329 __u8 reserved2[16]; 330 } __attribute__ ((packed)); 331 332 struct qeth_hdr_osn { 333 __u8 id; 334 __u8 reserved; 335 __u16 seq_no; 336 __u16 reserved2; 337 __u16 control_flags; 338 __u16 pdu_length; 339 __u8 reserved3[18]; 340 __u32 ccid; 341 } __attribute__ ((packed)); 342 343 struct qeth_hdr { 344 union { 345 struct qeth_hdr_layer2 l2; 346 struct qeth_hdr_layer3 l3; 347 struct qeth_hdr_osn osn; 348 } hdr; 349 } __attribute__ ((packed)); 350 351 /*TCP Segmentation Offload header*/ 352 struct qeth_hdr_ext_tso { 353 __u16 hdr_tot_len; 354 __u8 imb_hdr_no; 355 __u8 reserved; 356 __u8 hdr_type; 357 __u8 hdr_version; 358 __u16 hdr_len; 359 __u32 payload_len; 360 __u16 mss; 361 __u16 dg_hdr_len; 362 __u8 padding[16]; 363 } __attribute__ ((packed)); 364 365 struct qeth_hdr_tso { 366 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 367 struct qeth_hdr_ext_tso ext; 368 } __attribute__ ((packed)); 369 370 371 /* flags for qeth_hdr.flags */ 372 #define QETH_HDR_PASSTHRU 0x10 373 #define QETH_HDR_IPV6 0x80 374 #define QETH_HDR_CAST_MASK 0x07 375 enum qeth_cast_flags { 376 QETH_CAST_UNICAST = 0x06, 377 QETH_CAST_MULTICAST = 0x04, 378 QETH_CAST_BROADCAST = 0x05, 379 QETH_CAST_ANYCAST = 0x07, 380 QETH_CAST_NOCAST = 0x00, 381 }; 382 383 enum qeth_layer2_frame_flags { 384 QETH_LAYER2_FLAG_MULTICAST = 0x01, 385 QETH_LAYER2_FLAG_BROADCAST = 0x02, 386 QETH_LAYER2_FLAG_UNICAST = 0x04, 387 QETH_LAYER2_FLAG_VLAN = 0x10, 388 }; 389 390 enum qeth_header_ids { 391 QETH_HEADER_TYPE_LAYER3 = 0x01, 392 QETH_HEADER_TYPE_LAYER2 = 0x02, 393 QETH_HEADER_TYPE_TSO = 0x03, 394 QETH_HEADER_TYPE_OSN = 0x04, 395 }; 396 /* flags for qeth_hdr.ext_flags */ 397 #define QETH_HDR_EXT_VLAN_FRAME 0x01 398 #define QETH_HDR_EXT_TOKEN_ID 0x02 399 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 400 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 401 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 402 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 403 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 404 405 enum qeth_qdio_buffer_states { 406 /* 407 * inbound: read out by driver; owned by hardware in order to be filled 408 * outbound: owned by driver in order to be filled 409 */ 410 QETH_QDIO_BUF_EMPTY, 411 /* 412 * inbound: filled by hardware; owned by driver in order to be read out 413 * outbound: filled by driver; owned by hardware in order to be sent 414 */ 415 QETH_QDIO_BUF_PRIMED, 416 /* 417 * inbound: not applicable 418 * outbound: identified to be pending in TPQ 419 */ 420 QETH_QDIO_BUF_PENDING, 421 /* 422 * inbound: not applicable 423 * outbound: found in completion queue 424 */ 425 QETH_QDIO_BUF_IN_CQ, 426 /* 427 * inbound: not applicable 428 * outbound: handled via transfer pending / completion queue 429 */ 430 QETH_QDIO_BUF_HANDLED_DELAYED, 431 }; 432 433 enum qeth_qdio_info_states { 434 QETH_QDIO_UNINITIALIZED, 435 QETH_QDIO_ALLOCATED, 436 QETH_QDIO_ESTABLISHED, 437 QETH_QDIO_CLEANING 438 }; 439 440 struct qeth_buffer_pool_entry { 441 struct list_head list; 442 struct list_head init_list; 443 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 444 }; 445 446 struct qeth_qdio_buffer_pool { 447 struct list_head entry_list; 448 int buf_count; 449 }; 450 451 struct qeth_qdio_buffer { 452 struct qdio_buffer *buffer; 453 /* the buffer pool entry currently associated to this buffer */ 454 struct qeth_buffer_pool_entry *pool_entry; 455 struct sk_buff *rx_skb; 456 }; 457 458 struct qeth_qdio_q { 459 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 460 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 461 int next_buf_to_init; 462 }; 463 464 struct qeth_qdio_out_buffer { 465 struct qdio_buffer *buffer; 466 atomic_t state; 467 int next_element_to_fill; 468 struct sk_buff_head skb_list; 469 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 470 471 struct qeth_qdio_out_q *q; 472 struct qeth_qdio_out_buffer *next_pending; 473 }; 474 475 struct qeth_card; 476 477 enum qeth_out_q_states { 478 QETH_OUT_Q_UNLOCKED, 479 QETH_OUT_Q_LOCKED, 480 QETH_OUT_Q_LOCKED_FLUSH, 481 }; 482 483 struct qeth_qdio_out_q { 484 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 485 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 486 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 487 int queue_no; 488 struct qeth_card *card; 489 atomic_t state; 490 int do_pack; 491 /* 492 * index of buffer to be filled by driver; state EMPTY or PACKING 493 */ 494 int next_buf_to_fill; 495 /* 496 * number of buffers that are currently filled (PRIMED) 497 * -> these buffers are hardware-owned 498 */ 499 atomic_t used_buffers; 500 /* indicates whether PCI flag must be set (or if one is outstanding) */ 501 atomic_t set_pci_flags_count; 502 }; 503 504 struct qeth_qdio_info { 505 atomic_t state; 506 /* input */ 507 int no_in_queues; 508 struct qeth_qdio_q *in_q; 509 struct qeth_qdio_q *c_q; 510 struct qeth_qdio_buffer_pool in_buf_pool; 511 struct qeth_qdio_buffer_pool init_pool; 512 int in_buf_size; 513 514 /* output */ 515 int no_out_queues; 516 struct qeth_qdio_out_q **out_qs; 517 struct qdio_outbuf_state *out_bufstates; 518 519 /* priority queueing */ 520 int do_prio_queueing; 521 int default_out_queue; 522 }; 523 524 /** 525 * buffer stuff for read channel 526 */ 527 #define QETH_CMD_BUFFER_NO 8 528 529 /** 530 * channel state machine 531 */ 532 enum qeth_channel_states { 533 CH_STATE_UP, 534 CH_STATE_DOWN, 535 CH_STATE_ACTIVATING, 536 CH_STATE_HALTED, 537 CH_STATE_STOPPED, 538 CH_STATE_RCD, 539 CH_STATE_RCD_DONE, 540 }; 541 /** 542 * card state machine 543 */ 544 enum qeth_card_states { 545 CARD_STATE_DOWN, 546 CARD_STATE_HARDSETUP, 547 CARD_STATE_SOFTSETUP, 548 CARD_STATE_UP, 549 CARD_STATE_RECOVER, 550 }; 551 552 /** 553 * Protocol versions 554 */ 555 enum qeth_prot_versions { 556 QETH_PROT_IPV4 = 0x0004, 557 QETH_PROT_IPV6 = 0x0006, 558 }; 559 560 enum qeth_cmd_buffer_state { 561 BUF_STATE_FREE, 562 BUF_STATE_LOCKED, 563 }; 564 565 enum qeth_cq { 566 QETH_CQ_DISABLED = 0, 567 QETH_CQ_ENABLED = 1, 568 QETH_CQ_NOTAVAILABLE = 2, 569 }; 570 571 struct qeth_ipato { 572 bool enabled; 573 bool invert4; 574 bool invert6; 575 struct list_head entries; 576 }; 577 578 struct qeth_channel; 579 580 struct qeth_cmd_buffer { 581 enum qeth_cmd_buffer_state state; 582 struct qeth_channel *channel; 583 unsigned char *data; 584 int rc; 585 void (*callback)(struct qeth_card *card, struct qeth_channel *channel, 586 struct qeth_cmd_buffer *iob); 587 }; 588 589 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 590 { 591 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 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 }; 608 609 /** 610 * OSA card related definitions 611 */ 612 struct qeth_token { 613 __u32 issuer_rm_w; 614 __u32 issuer_rm_r; 615 __u32 cm_filter_w; 616 __u32 cm_filter_r; 617 __u32 cm_connection_w; 618 __u32 cm_connection_r; 619 __u32 ulp_filter_w; 620 __u32 ulp_filter_r; 621 __u32 ulp_connection_w; 622 __u32 ulp_connection_r; 623 }; 624 625 struct qeth_seqno { 626 __u32 trans_hdr; 627 __u32 pdu_hdr; 628 __u32 pdu_hdr_ack; 629 __u16 ipa; 630 __u32 pkt_seqno; 631 }; 632 633 struct qeth_reply { 634 struct list_head list; 635 wait_queue_head_t wait_q; 636 int (*callback)(struct qeth_card *, struct qeth_reply *, 637 unsigned long); 638 u32 seqno; 639 unsigned long offset; 640 atomic_t received; 641 int rc; 642 void *param; 643 refcount_t refcnt; 644 }; 645 646 struct qeth_card_blkt { 647 int time_total; 648 int inter_packet; 649 int inter_packet_jumbo; 650 }; 651 652 #define QETH_BROADCAST_WITH_ECHO 0x01 653 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 654 #define QETH_LAYER2_MAC_READ 0x01 655 #define QETH_LAYER2_MAC_REGISTERED 0x02 656 struct qeth_card_info { 657 unsigned short unit_addr2; 658 unsigned short cula; 659 unsigned short chpid; 660 __u16 func_level; 661 char mcl_level[QETH_MCL_LENGTH + 1]; 662 int guestlan; 663 int mac_bits; 664 enum qeth_card_types type; 665 enum qeth_link_types link_type; 666 int broadcast_capable; 667 int unique_id; 668 bool layer_enforced; 669 struct qeth_card_blkt blkt; 670 enum qeth_ipa_promisc_modes promisc_mode; 671 __u32 diagass_support; 672 __u32 hwtrap; 673 }; 674 675 enum qeth_discipline_id { 676 QETH_DISCIPLINE_UNDETERMINED = -1, 677 QETH_DISCIPLINE_LAYER3 = 0, 678 QETH_DISCIPLINE_LAYER2 = 1, 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 enum qeth_discipline_id layer; 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 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 701 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 702 703 /* 704 * thread bits for qeth_card thread masks 705 */ 706 enum qeth_threads { 707 QETH_RECOVER_THREAD = 1, 708 }; 709 710 struct qeth_osn_info { 711 int (*assist_cb)(struct net_device *dev, void *data); 712 int (*data_cb)(struct sk_buff *skb); 713 }; 714 715 struct qeth_discipline { 716 const struct device_type *devtype; 717 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 718 int (*recover)(void *ptr); 719 int (*setup) (struct ccwgroup_device *); 720 void (*remove) (struct ccwgroup_device *); 721 int (*set_online) (struct ccwgroup_device *); 722 int (*set_offline) (struct ccwgroup_device *); 723 int (*freeze)(struct ccwgroup_device *); 724 int (*thaw) (struct ccwgroup_device *); 725 int (*restore)(struct ccwgroup_device *); 726 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 727 int (*control_event_handler)(struct qeth_card *card, 728 struct qeth_ipa_cmd *cmd); 729 }; 730 731 struct qeth_vlan_vid { 732 struct list_head list; 733 unsigned short vid; 734 }; 735 736 enum qeth_addr_disposition { 737 QETH_DISP_ADDR_DELETE = 0, 738 QETH_DISP_ADDR_DO_NOTHING = 1, 739 QETH_DISP_ADDR_ADD = 2, 740 }; 741 742 struct qeth_rx { 743 int b_count; 744 int b_index; 745 struct qdio_buffer_element *b_element; 746 int e_offset; 747 int qdio_err; 748 }; 749 750 struct carrier_info { 751 __u8 card_type; 752 __u16 port_mode; 753 __u32 port_speed; 754 }; 755 756 struct qeth_switch_info { 757 __u32 capabilities; 758 __u32 settings; 759 }; 760 761 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 762 763 struct qeth_card { 764 struct list_head list; 765 enum qeth_card_states state; 766 spinlock_t lock; 767 struct ccwgroup_device *gdev; 768 struct qeth_channel read; 769 struct qeth_channel write; 770 struct qeth_channel data; 771 772 struct net_device *dev; 773 struct net_device_stats stats; 774 775 struct qeth_card_info info; 776 struct qeth_token token; 777 struct qeth_seqno seqno; 778 struct qeth_card_options options; 779 780 wait_queue_head_t wait_q; 781 spinlock_t mclock; 782 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 783 struct mutex vid_list_mutex; /* vid_list */ 784 struct list_head vid_list; 785 DECLARE_HASHTABLE(mac_htable, 4); 786 DECLARE_HASHTABLE(ip_htable, 4); 787 DECLARE_HASHTABLE(ip_mc_htable, 4); 788 struct work_struct kernel_thread_starter; 789 spinlock_t thread_mask_lock; 790 unsigned long thread_start_mask; 791 unsigned long thread_allowed_mask; 792 unsigned long thread_running_mask; 793 struct task_struct *recovery_task; 794 spinlock_t ip_lock; 795 struct qeth_ipato ipato; 796 struct list_head cmd_waiter_list; 797 /* QDIO buffer handling */ 798 struct qeth_qdio_info qdio; 799 struct qeth_perf_stats perf_stats; 800 int read_or_write_problem; 801 struct qeth_osn_info osn_info; 802 struct qeth_discipline *discipline; 803 atomic_t force_alloc_skb; 804 struct service_level qeth_service_level; 805 struct qdio_ssqd_desc ssqd; 806 debug_info_t *debug; 807 struct mutex conf_mutex; 808 struct mutex discipline_mutex; 809 struct napi_struct napi; 810 struct qeth_rx rx; 811 struct delayed_work buffer_reclaim_work; 812 int reclaim_index; 813 struct work_struct close_dev_work; 814 }; 815 816 struct qeth_card_list_struct { 817 struct list_head list; 818 rwlock_t rwlock; 819 }; 820 821 struct qeth_trap_id { 822 __u16 lparnr; 823 char vmname[8]; 824 __u8 chpid; 825 __u8 ssid; 826 __u16 devno; 827 } __packed; 828 829 /*some helper functions*/ 830 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 831 832 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 833 unsigned int elements) 834 { 835 unsigned int i; 836 837 for (i = 0; i < elements; i++) 838 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 839 buf->element[14].sflags = 0; 840 buf->element[15].sflags = 0; 841 } 842 843 /** 844 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 845 * @start: Start of the address range. 846 * @end: Address after the end of the range. 847 * 848 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 849 * the specified address range. 850 */ 851 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 852 { 853 return PFN_UP(end) - PFN_DOWN(start); 854 } 855 856 static inline int qeth_get_micros(void) 857 { 858 return (int) (get_tod_clock() >> 12); 859 } 860 861 static inline int qeth_get_ip_version(struct sk_buff *skb) 862 { 863 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 864 __be16 prot = veth->h_vlan_proto; 865 866 if (prot == htons(ETH_P_8021Q)) 867 prot = veth->h_vlan_encapsulated_proto; 868 869 switch (prot) { 870 case htons(ETH_P_IPV6): 871 return 6; 872 case htons(ETH_P_IP): 873 return 4; 874 default: 875 return 0; 876 } 877 } 878 879 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 880 u8 flags) 881 { 882 if ((card->dev->features & NETIF_F_RXCSUM) && 883 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 884 skb->ip_summed = CHECKSUM_UNNECESSARY; 885 if (card->options.performance_stats) 886 card->perf_stats.rx_csum++; 887 } else { 888 skb->ip_summed = CHECKSUM_NONE; 889 } 890 } 891 892 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 893 { 894 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 895 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 896 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 897 *flags |= QETH_HDR_EXT_UDP; 898 } 899 900 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 901 struct qeth_buffer_pool_entry *entry) 902 { 903 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 904 } 905 906 static inline int qeth_is_diagass_supported(struct qeth_card *card, 907 enum qeth_diags_cmds cmd) 908 { 909 return card->info.diagass_support & (__u32)cmd; 910 } 911 912 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 913 enum qeth_ipa_funcs ipa_func, 914 u16 cmd_code, long data, 915 enum qeth_prot_versions prot); 916 /* IPv4 variant */ 917 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 918 enum qeth_ipa_funcs ipa_func, 919 u16 cmd_code, long data) 920 { 921 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 922 data, QETH_PROT_IPV4); 923 } 924 925 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 926 enum qeth_ipa_funcs ipa_func, 927 u16 cmd_code, long data) 928 { 929 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 930 data, QETH_PROT_IPV6); 931 } 932 933 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 934 int ipv); 935 static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card, 936 struct sk_buff *skb, 937 int ipv, int cast_type) 938 { 939 if (IS_IQD(card) && cast_type != RTN_UNICAST) 940 return card->qdio.out_qs[card->qdio.no_out_queues - 1]; 941 if (!card->qdio.do_prio_queueing) 942 return card->qdio.out_qs[card->qdio.default_out_queue]; 943 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)]; 944 } 945 946 extern struct qeth_discipline qeth_l2_discipline; 947 extern struct qeth_discipline qeth_l3_discipline; 948 extern const struct attribute_group *qeth_generic_attr_groups[]; 949 extern const struct attribute_group *qeth_osn_attr_groups[]; 950 extern const struct attribute_group qeth_device_attr_group; 951 extern const struct attribute_group qeth_device_blkt_group; 952 extern const struct device_type qeth_generic_devtype; 953 extern struct workqueue_struct *qeth_wq; 954 955 int qeth_card_hw_is_reachable(struct qeth_card *); 956 const char *qeth_get_cardname_short(struct qeth_card *); 957 int qeth_realloc_buffer_pool(struct qeth_card *, int); 958 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 959 void qeth_core_free_discipline(struct qeth_card *); 960 961 /* exports for qeth discipline device drivers */ 962 extern struct qeth_card_list_struct qeth_core_card_list; 963 extern struct kmem_cache *qeth_core_header_cache; 964 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 965 966 struct net_device *qeth_clone_netdev(struct net_device *orig); 967 void qeth_set_recovery_task(struct qeth_card *); 968 void qeth_clear_recovery_task(struct qeth_card *); 969 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 970 int qeth_threads_running(struct qeth_card *, unsigned long); 971 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 972 int qeth_do_run_thread(struct qeth_card *, unsigned long); 973 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 974 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 975 int qeth_core_hardsetup_card(struct qeth_card *); 976 void qeth_print_status_message(struct qeth_card *); 977 int qeth_init_qdio_queues(struct qeth_card *); 978 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 979 int (*reply_cb) 980 (struct qeth_card *, struct qeth_reply *, unsigned long), 981 void *); 982 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 983 enum qeth_ipa_cmds, enum qeth_prot_versions); 984 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 985 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 986 struct qeth_hdr **); 987 void qeth_schedule_recovery(struct qeth_card *); 988 int qeth_poll(struct napi_struct *napi, int budget); 989 void qeth_clear_ipacmd_list(struct qeth_card *); 990 int qeth_qdio_clear_card(struct qeth_card *, int); 991 void qeth_clear_working_pool_list(struct qeth_card *); 992 void qeth_clear_cmd_buffers(struct qeth_channel *); 993 void qeth_clear_qdio_buffers(struct qeth_card *); 994 void qeth_setadp_promisc_mode(struct qeth_card *); 995 struct net_device_stats *qeth_get_stats(struct net_device *); 996 int qeth_setadpparms_change_macaddr(struct qeth_card *); 997 void qeth_tx_timeout(struct net_device *); 998 void qeth_prepare_control_data(struct qeth_card *, int, 999 struct qeth_cmd_buffer *); 1000 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 1001 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob); 1002 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 1003 int qeth_query_switch_attributes(struct qeth_card *card, 1004 struct qeth_switch_info *sw_info); 1005 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 1006 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 1007 void *reply_param); 1008 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 1009 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 1010 struct qeth_hdr *hdr, unsigned int offset, 1011 unsigned int hd_len); 1012 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1013 struct sk_buff *skb, struct qeth_hdr *hdr, 1014 unsigned int offset, unsigned int hd_len, 1015 int elements_needed); 1016 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1017 int qeth_core_get_sset_count(struct net_device *, int); 1018 void qeth_core_get_ethtool_stats(struct net_device *, 1019 struct ethtool_stats *, u64 *); 1020 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1021 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1022 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1023 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1024 struct ethtool_link_ksettings *cmd); 1025 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1026 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1027 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1028 void qeth_trace_features(struct qeth_card *); 1029 void qeth_close_dev(struct qeth_card *); 1030 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 1031 long, 1032 int (*reply_cb)(struct qeth_card *, 1033 struct qeth_reply *, unsigned long), 1034 void *); 1035 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1036 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1037 enum qeth_ipa_funcs, 1038 __u16, __u16, 1039 enum qeth_prot_versions); 1040 int qeth_set_features(struct net_device *, netdev_features_t); 1041 void qeth_enable_hw_features(struct net_device *dev); 1042 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1043 netdev_features_t qeth_features_check(struct sk_buff *skb, 1044 struct net_device *dev, 1045 netdev_features_t features); 1046 int qeth_vm_request_mac(struct qeth_card *card); 1047 int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 1048 struct qeth_hdr **hdr, unsigned int hdr_len, 1049 unsigned int proto_len, unsigned int *elements); 1050 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1051 struct qeth_qdio_out_q *queue, int ipv, int cast_type, 1052 void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 1053 struct sk_buff *skb, int ipv, int cast_type, 1054 unsigned int data_len)); 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