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 238 239 /** 240 * some more defs 241 */ 242 #define QETH_TX_TIMEOUT 100 * HZ 243 #define QETH_RCD_TIMEOUT 60 * HZ 244 #define QETH_RECLAIM_WORK_TIME HZ 245 #define QETH_MAX_PORTNO 15 246 247 /*IPv6 address autoconfiguration stuff*/ 248 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 249 #define UNIQUE_ID_NOT_BY_CARD 0x10000 250 251 /*****************************************************************************/ 252 /* QDIO queue and buffer handling */ 253 /*****************************************************************************/ 254 #define QETH_MAX_QUEUES 4 255 #define QETH_IN_BUF_SIZE_DEFAULT 65536 256 #define QETH_IN_BUF_COUNT_DEFAULT 64 257 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 258 #define QETH_IN_BUF_COUNT_MIN 8 259 #define QETH_IN_BUF_COUNT_MAX 128 260 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 261 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 262 ((card)->qdio.in_buf_pool.buf_count / 2) 263 264 /* buffers we have to be behind before we get a PCI */ 265 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 266 /*enqueued free buffers left before we get a PCI*/ 267 #define QETH_PCI_THRESHOLD_B(card) 0 268 /*not used unless the microcode gets patched*/ 269 #define QETH_PCI_TIMER_VALUE(card) 3 270 271 /* priority queing */ 272 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 273 #define QETH_DEFAULT_QUEUE 2 274 #define QETH_NO_PRIO_QUEUEING 0 275 #define QETH_PRIO_Q_ING_PREC 1 276 #define QETH_PRIO_Q_ING_TOS 2 277 #define QETH_PRIO_Q_ING_SKB 3 278 #define QETH_PRIO_Q_ING_VLAN 4 279 280 /* Packing */ 281 #define QETH_LOW_WATERMARK_PACK 2 282 #define QETH_HIGH_WATERMARK_PACK 5 283 #define QETH_WATERMARK_PACK_FUZZ 1 284 285 /* large receive scatter gather copy break */ 286 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 287 #define QETH_RX_PULL_LEN 256 288 289 struct qeth_hdr_layer3 { 290 __u8 id; 291 __u8 flags; 292 __u16 inbound_checksum; /*TSO:__u16 seqno */ 293 __u32 token; /*TSO: __u32 reserved */ 294 __u16 length; 295 __u8 vlan_prio; 296 __u8 ext_flags; 297 __u16 vlan_id; 298 __u16 frame_offset; 299 union { 300 /* TX: */ 301 u8 ipv6_addr[16]; 302 struct ipv4 { 303 u8 res[12]; 304 u32 addr; 305 } ipv4; 306 /* RX: */ 307 struct rx { 308 u8 res1[2]; 309 u8 src_mac[6]; 310 u8 res2[4]; 311 u16 vlan_id; 312 u8 res3[2]; 313 } rx; 314 } next_hop; 315 }; 316 317 struct qeth_hdr_layer2 { 318 __u8 id; 319 __u8 flags[3]; 320 __u8 port_no; 321 __u8 hdr_length; 322 __u16 pkt_length; 323 __u16 seq_no; 324 __u16 vlan_id; 325 __u32 reserved; 326 __u8 reserved2[16]; 327 } __attribute__ ((packed)); 328 329 struct qeth_hdr_osn { 330 __u8 id; 331 __u8 reserved; 332 __u16 seq_no; 333 __u16 reserved2; 334 __u16 control_flags; 335 __u16 pdu_length; 336 __u8 reserved3[18]; 337 __u32 ccid; 338 } __attribute__ ((packed)); 339 340 struct qeth_hdr { 341 union { 342 struct qeth_hdr_layer2 l2; 343 struct qeth_hdr_layer3 l3; 344 struct qeth_hdr_osn osn; 345 } hdr; 346 } __attribute__ ((packed)); 347 348 /*TCP Segmentation Offload header*/ 349 struct qeth_hdr_ext_tso { 350 __u16 hdr_tot_len; 351 __u8 imb_hdr_no; 352 __u8 reserved; 353 __u8 hdr_type; 354 __u8 hdr_version; 355 __u16 hdr_len; 356 __u32 payload_len; 357 __u16 mss; 358 __u16 dg_hdr_len; 359 __u8 padding[16]; 360 } __attribute__ ((packed)); 361 362 struct qeth_hdr_tso { 363 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 364 struct qeth_hdr_ext_tso ext; 365 } __attribute__ ((packed)); 366 367 368 /* flags for qeth_hdr.flags */ 369 #define QETH_HDR_PASSTHRU 0x10 370 #define QETH_HDR_IPV6 0x80 371 #define QETH_HDR_CAST_MASK 0x07 372 enum qeth_cast_flags { 373 QETH_CAST_UNICAST = 0x06, 374 QETH_CAST_MULTICAST = 0x04, 375 QETH_CAST_BROADCAST = 0x05, 376 QETH_CAST_ANYCAST = 0x07, 377 QETH_CAST_NOCAST = 0x00, 378 }; 379 380 enum qeth_layer2_frame_flags { 381 QETH_LAYER2_FLAG_MULTICAST = 0x01, 382 QETH_LAYER2_FLAG_BROADCAST = 0x02, 383 QETH_LAYER2_FLAG_UNICAST = 0x04, 384 QETH_LAYER2_FLAG_VLAN = 0x10, 385 }; 386 387 enum qeth_header_ids { 388 QETH_HEADER_TYPE_LAYER3 = 0x01, 389 QETH_HEADER_TYPE_LAYER2 = 0x02, 390 QETH_HEADER_TYPE_TSO = 0x03, 391 QETH_HEADER_TYPE_OSN = 0x04, 392 }; 393 /* flags for qeth_hdr.ext_flags */ 394 #define QETH_HDR_EXT_VLAN_FRAME 0x01 395 #define QETH_HDR_EXT_TOKEN_ID 0x02 396 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 397 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 398 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 399 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 400 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 401 402 enum qeth_qdio_buffer_states { 403 /* 404 * inbound: read out by driver; owned by hardware in order to be filled 405 * outbound: owned by driver in order to be filled 406 */ 407 QETH_QDIO_BUF_EMPTY, 408 /* 409 * inbound: filled by hardware; owned by driver in order to be read out 410 * outbound: filled by driver; owned by hardware in order to be sent 411 */ 412 QETH_QDIO_BUF_PRIMED, 413 /* 414 * inbound: not applicable 415 * outbound: identified to be pending in TPQ 416 */ 417 QETH_QDIO_BUF_PENDING, 418 /* 419 * inbound: not applicable 420 * outbound: found in completion queue 421 */ 422 QETH_QDIO_BUF_IN_CQ, 423 /* 424 * inbound: not applicable 425 * outbound: handled via transfer pending / completion queue 426 */ 427 QETH_QDIO_BUF_HANDLED_DELAYED, 428 }; 429 430 enum qeth_qdio_info_states { 431 QETH_QDIO_UNINITIALIZED, 432 QETH_QDIO_ALLOCATED, 433 QETH_QDIO_ESTABLISHED, 434 QETH_QDIO_CLEANING 435 }; 436 437 struct qeth_buffer_pool_entry { 438 struct list_head list; 439 struct list_head init_list; 440 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 441 }; 442 443 struct qeth_qdio_buffer_pool { 444 struct list_head entry_list; 445 int buf_count; 446 }; 447 448 struct qeth_qdio_buffer { 449 struct qdio_buffer *buffer; 450 /* the buffer pool entry currently associated to this buffer */ 451 struct qeth_buffer_pool_entry *pool_entry; 452 struct sk_buff *rx_skb; 453 }; 454 455 struct qeth_qdio_q { 456 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 457 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 458 int next_buf_to_init; 459 }; 460 461 struct qeth_qdio_out_buffer { 462 struct qdio_buffer *buffer; 463 atomic_t state; 464 int next_element_to_fill; 465 struct sk_buff_head skb_list; 466 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 467 468 struct qeth_qdio_out_q *q; 469 struct qeth_qdio_out_buffer *next_pending; 470 }; 471 472 struct qeth_card; 473 474 enum qeth_out_q_states { 475 QETH_OUT_Q_UNLOCKED, 476 QETH_OUT_Q_LOCKED, 477 QETH_OUT_Q_LOCKED_FLUSH, 478 }; 479 480 struct qeth_qdio_out_q { 481 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 482 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 483 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 484 int queue_no; 485 struct qeth_card *card; 486 atomic_t state; 487 int do_pack; 488 /* 489 * index of buffer to be filled by driver; state EMPTY or PACKING 490 */ 491 int next_buf_to_fill; 492 /* 493 * number of buffers that are currently filled (PRIMED) 494 * -> these buffers are hardware-owned 495 */ 496 atomic_t used_buffers; 497 /* indicates whether PCI flag must be set (or if one is outstanding) */ 498 atomic_t set_pci_flags_count; 499 }; 500 501 struct qeth_qdio_info { 502 atomic_t state; 503 /* input */ 504 int no_in_queues; 505 struct qeth_qdio_q *in_q; 506 struct qeth_qdio_q *c_q; 507 struct qeth_qdio_buffer_pool in_buf_pool; 508 struct qeth_qdio_buffer_pool init_pool; 509 int in_buf_size; 510 511 /* output */ 512 int no_out_queues; 513 struct qeth_qdio_out_q **out_qs; 514 struct qdio_outbuf_state *out_bufstates; 515 516 /* priority queueing */ 517 int do_prio_queueing; 518 int default_out_queue; 519 }; 520 521 /** 522 * buffer stuff for read channel 523 */ 524 #define QETH_CMD_BUFFER_NO 8 525 526 /** 527 * channel state machine 528 */ 529 enum qeth_channel_states { 530 CH_STATE_UP, 531 CH_STATE_DOWN, 532 CH_STATE_ACTIVATING, 533 CH_STATE_HALTED, 534 CH_STATE_STOPPED, 535 CH_STATE_RCD, 536 CH_STATE_RCD_DONE, 537 }; 538 /** 539 * card state machine 540 */ 541 enum qeth_card_states { 542 CARD_STATE_DOWN, 543 CARD_STATE_HARDSETUP, 544 CARD_STATE_SOFTSETUP, 545 CARD_STATE_UP, 546 CARD_STATE_RECOVER, 547 }; 548 549 /** 550 * Protocol versions 551 */ 552 enum qeth_prot_versions { 553 QETH_PROT_IPV4 = 0x0004, 554 QETH_PROT_IPV6 = 0x0006, 555 }; 556 557 enum qeth_cmd_buffer_state { 558 BUF_STATE_FREE, 559 BUF_STATE_LOCKED, 560 }; 561 562 enum qeth_cq { 563 QETH_CQ_DISABLED = 0, 564 QETH_CQ_ENABLED = 1, 565 QETH_CQ_NOTAVAILABLE = 2, 566 }; 567 568 struct qeth_ipato { 569 bool enabled; 570 bool invert4; 571 bool invert6; 572 struct list_head entries; 573 }; 574 575 struct qeth_channel; 576 577 struct qeth_cmd_buffer { 578 enum qeth_cmd_buffer_state state; 579 struct qeth_channel *channel; 580 unsigned char *data; 581 int rc; 582 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); 583 }; 584 585 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 586 { 587 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 588 } 589 590 /** 591 * definition of a qeth channel, used for read and write 592 */ 593 struct qeth_channel { 594 enum qeth_channel_states state; 595 struct ccw1 ccw; 596 spinlock_t iob_lock; 597 wait_queue_head_t wait_q; 598 struct ccw_device *ccwdev; 599 /*command buffer for control data*/ 600 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 601 atomic_t irq_pending; 602 int io_buf_no; 603 }; 604 605 /** 606 * OSA card related definitions 607 */ 608 struct qeth_token { 609 __u32 issuer_rm_w; 610 __u32 issuer_rm_r; 611 __u32 cm_filter_w; 612 __u32 cm_filter_r; 613 __u32 cm_connection_w; 614 __u32 cm_connection_r; 615 __u32 ulp_filter_w; 616 __u32 ulp_filter_r; 617 __u32 ulp_connection_w; 618 __u32 ulp_connection_r; 619 }; 620 621 struct qeth_seqno { 622 __u32 trans_hdr; 623 __u32 pdu_hdr; 624 __u32 pdu_hdr_ack; 625 __u16 ipa; 626 __u32 pkt_seqno; 627 }; 628 629 struct qeth_reply { 630 struct list_head list; 631 wait_queue_head_t wait_q; 632 int (*callback)(struct qeth_card *, struct qeth_reply *, 633 unsigned long); 634 u32 seqno; 635 unsigned long offset; 636 atomic_t received; 637 int rc; 638 void *param; 639 struct qeth_card *card; 640 refcount_t refcnt; 641 }; 642 643 struct qeth_card_blkt { 644 int time_total; 645 int inter_packet; 646 int inter_packet_jumbo; 647 }; 648 649 #define QETH_BROADCAST_WITH_ECHO 0x01 650 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 651 #define QETH_LAYER2_MAC_READ 0x01 652 #define QETH_LAYER2_MAC_REGISTERED 0x02 653 struct qeth_card_info { 654 unsigned short unit_addr2; 655 unsigned short cula; 656 unsigned short chpid; 657 __u16 func_level; 658 char mcl_level[QETH_MCL_LENGTH + 1]; 659 int guestlan; 660 int mac_bits; 661 enum qeth_card_types type; 662 enum qeth_link_types link_type; 663 int broadcast_capable; 664 int unique_id; 665 bool layer_enforced; 666 struct qeth_card_blkt blkt; 667 enum qeth_ipa_promisc_modes promisc_mode; 668 __u32 diagass_support; 669 __u32 hwtrap; 670 }; 671 672 struct qeth_card_options { 673 struct qeth_routing_info route4; 674 struct qeth_ipa_info ipa4; 675 struct qeth_ipa_info adp; /*Adapter parameters*/ 676 struct qeth_routing_info route6; 677 struct qeth_ipa_info ipa6; 678 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 679 struct qeth_vnicc_info vnicc; /* VNICC options */ 680 int fake_broadcast; 681 int layer2; 682 int performance_stats; 683 int rx_sg_cb; 684 enum qeth_ipa_isolation_modes isolation; 685 enum qeth_ipa_isolation_modes prev_isolation; 686 int sniffer; 687 enum qeth_cq cq; 688 char hsuid[9]; 689 }; 690 691 /* 692 * thread bits for qeth_card thread masks 693 */ 694 enum qeth_threads { 695 QETH_RECOVER_THREAD = 1, 696 }; 697 698 struct qeth_osn_info { 699 int (*assist_cb)(struct net_device *dev, void *data); 700 int (*data_cb)(struct sk_buff *skb); 701 }; 702 703 enum qeth_discipline_id { 704 QETH_DISCIPLINE_UNDETERMINED = -1, 705 QETH_DISCIPLINE_LAYER3 = 0, 706 QETH_DISCIPLINE_LAYER2 = 1, 707 }; 708 709 struct qeth_discipline { 710 const struct device_type *devtype; 711 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 712 int (*recover)(void *ptr); 713 int (*setup) (struct ccwgroup_device *); 714 void (*remove) (struct ccwgroup_device *); 715 int (*set_online) (struct ccwgroup_device *); 716 int (*set_offline) (struct ccwgroup_device *); 717 int (*freeze)(struct ccwgroup_device *); 718 int (*thaw) (struct ccwgroup_device *); 719 int (*restore)(struct ccwgroup_device *); 720 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 721 int (*control_event_handler)(struct qeth_card *card, 722 struct qeth_ipa_cmd *cmd); 723 }; 724 725 struct qeth_vlan_vid { 726 struct list_head list; 727 unsigned short vid; 728 }; 729 730 enum qeth_addr_disposition { 731 QETH_DISP_ADDR_DELETE = 0, 732 QETH_DISP_ADDR_DO_NOTHING = 1, 733 QETH_DISP_ADDR_ADD = 2, 734 }; 735 736 struct qeth_rx { 737 int b_count; 738 int b_index; 739 struct qdio_buffer_element *b_element; 740 int e_offset; 741 int qdio_err; 742 }; 743 744 struct carrier_info { 745 __u8 card_type; 746 __u16 port_mode; 747 __u32 port_speed; 748 }; 749 750 struct qeth_switch_info { 751 __u32 capabilities; 752 __u32 settings; 753 }; 754 755 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 756 757 struct qeth_card { 758 struct list_head list; 759 enum qeth_card_states state; 760 int lan_online; 761 spinlock_t lock; 762 struct ccwgroup_device *gdev; 763 struct qeth_channel read; 764 struct qeth_channel write; 765 struct qeth_channel data; 766 767 struct net_device *dev; 768 struct net_device_stats stats; 769 770 struct qeth_card_info info; 771 struct qeth_token token; 772 struct qeth_seqno seqno; 773 struct qeth_card_options options; 774 775 wait_queue_head_t wait_q; 776 spinlock_t mclock; 777 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 778 struct mutex vid_list_mutex; /* vid_list */ 779 struct list_head vid_list; 780 DECLARE_HASHTABLE(mac_htable, 4); 781 DECLARE_HASHTABLE(ip_htable, 4); 782 DECLARE_HASHTABLE(ip_mc_htable, 4); 783 struct work_struct kernel_thread_starter; 784 spinlock_t thread_mask_lock; 785 unsigned long thread_start_mask; 786 unsigned long thread_allowed_mask; 787 unsigned long thread_running_mask; 788 struct task_struct *recovery_task; 789 spinlock_t ip_lock; 790 struct qeth_ipato ipato; 791 struct list_head cmd_waiter_list; 792 /* QDIO buffer handling */ 793 struct qeth_qdio_info qdio; 794 struct qeth_perf_stats perf_stats; 795 int read_or_write_problem; 796 struct qeth_osn_info osn_info; 797 struct qeth_discipline *discipline; 798 atomic_t force_alloc_skb; 799 struct service_level qeth_service_level; 800 struct qdio_ssqd_desc ssqd; 801 debug_info_t *debug; 802 struct mutex conf_mutex; 803 struct mutex discipline_mutex; 804 struct napi_struct napi; 805 struct qeth_rx rx; 806 struct delayed_work buffer_reclaim_work; 807 int reclaim_index; 808 struct work_struct close_dev_work; 809 }; 810 811 struct qeth_card_list_struct { 812 struct list_head list; 813 rwlock_t rwlock; 814 }; 815 816 struct qeth_trap_id { 817 __u16 lparnr; 818 char vmname[8]; 819 __u8 chpid; 820 __u8 ssid; 821 __u16 devno; 822 } __packed; 823 824 /*some helper functions*/ 825 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 826 827 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 828 unsigned int elements) 829 { 830 unsigned int i; 831 832 for (i = 0; i < elements; i++) 833 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 834 buf->element[14].sflags = 0; 835 buf->element[15].sflags = 0; 836 } 837 838 /** 839 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 840 * @start: Start of the address range. 841 * @end: Address after the end of the range. 842 * 843 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 844 * the specified address range. 845 */ 846 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 847 { 848 return PFN_UP(end) - PFN_DOWN(start); 849 } 850 851 static inline int qeth_get_micros(void) 852 { 853 return (int) (get_tod_clock() >> 12); 854 } 855 856 static inline int qeth_get_ip_version(struct sk_buff *skb) 857 { 858 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 859 __be16 prot = veth->h_vlan_proto; 860 861 if (prot == htons(ETH_P_8021Q)) 862 prot = veth->h_vlan_encapsulated_proto; 863 864 switch (prot) { 865 case htons(ETH_P_IPV6): 866 return 6; 867 case htons(ETH_P_IP): 868 return 4; 869 default: 870 return 0; 871 } 872 } 873 874 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 875 u8 flags) 876 { 877 if ((card->dev->features & NETIF_F_RXCSUM) && 878 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 879 skb->ip_summed = CHECKSUM_UNNECESSARY; 880 if (card->options.performance_stats) 881 card->perf_stats.rx_csum++; 882 } else { 883 skb->ip_summed = CHECKSUM_NONE; 884 } 885 } 886 887 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 888 { 889 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 890 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 891 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 892 *flags |= QETH_HDR_EXT_UDP; 893 if (ipv == 4) { 894 /* some HW requires combined L3+L4 csum offload: */ 895 *flags |= QETH_HDR_EXT_CSUM_HDR_REQ; 896 ip_hdr(skb)->check = 0; 897 } 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 *, struct qeth_cmd_buffer *, char); 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 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, 1009 int extra_elems, int data_offset); 1010 int qeth_get_elements_for_frags(struct sk_buff *); 1011 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 1012 struct qeth_hdr *hdr, unsigned int offset, 1013 unsigned int hd_len); 1014 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1015 struct sk_buff *skb, struct qeth_hdr *hdr, 1016 unsigned int offset, unsigned int hd_len, 1017 int elements_needed); 1018 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1019 int qeth_core_get_sset_count(struct net_device *, int); 1020 void qeth_core_get_ethtool_stats(struct net_device *, 1021 struct ethtool_stats *, u64 *); 1022 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1023 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1024 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1025 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1026 struct ethtool_link_ksettings *cmd); 1027 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1028 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); 1029 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1030 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1031 void qeth_trace_features(struct qeth_card *); 1032 void qeth_close_dev(struct qeth_card *); 1033 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 1034 long, 1035 int (*reply_cb)(struct qeth_card *, 1036 struct qeth_reply *, unsigned long), 1037 void *); 1038 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1039 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1040 enum qeth_ipa_funcs, 1041 __u16, __u16, 1042 enum qeth_prot_versions); 1043 int qeth_set_features(struct net_device *, netdev_features_t); 1044 void qeth_enable_hw_features(struct net_device *dev); 1045 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1046 netdev_features_t qeth_features_check(struct sk_buff *skb, 1047 struct net_device *dev, 1048 netdev_features_t features); 1049 int qeth_vm_request_mac(struct qeth_card *card); 1050 int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 1051 struct qeth_hdr **hdr, unsigned int hdr_len, 1052 unsigned int proto_len, unsigned int *elements); 1053 1054 /* exports for OSN */ 1055 int qeth_osn_assist(struct net_device *, void *, int); 1056 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1057 int (*assist_cb)(struct net_device *, void *), 1058 int (*data_cb)(struct sk_buff *)); 1059 void qeth_osn_deregister(struct net_device *); 1060 1061 #endif /* __QETH_CORE_H__ */ 1062