1 /* 2 * drivers/s390/net/qeth_core.h 3 * 4 * Copyright IBM Corp. 2007 5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 6 * Frank Pavlic <fpavlic@de.ibm.com>, 7 * Thomas Spatzier <tspat@de.ibm.com>, 8 * Frank Blaschka <frank.blaschka@de.ibm.com> 9 */ 10 11 #ifndef __QETH_CORE_H__ 12 #define __QETH_CORE_H__ 13 14 #include <linux/if.h> 15 #include <linux/if_arp.h> 16 #include <linux/if_tr.h> 17 #include <linux/trdevice.h> 18 #include <linux/etherdevice.h> 19 #include <linux/if_vlan.h> 20 #include <linux/ctype.h> 21 #include <linux/in6.h> 22 #include <linux/bitops.h> 23 #include <linux/seq_file.h> 24 #include <linux/ethtool.h> 25 26 #include <net/ipv6.h> 27 #include <net/if_inet6.h> 28 #include <net/addrconf.h> 29 30 #include <asm/debug.h> 31 #include <asm/qdio.h> 32 #include <asm/ccwdev.h> 33 #include <asm/ccwgroup.h> 34 #include <asm/sysinfo.h> 35 36 #include "qeth_core_mpc.h" 37 38 /** 39 * Debug Facility stuff 40 */ 41 enum qeth_dbf_names { 42 QETH_DBF_SETUP, 43 QETH_DBF_MSG, 44 QETH_DBF_CTRL, 45 QETH_DBF_INFOS /* must be last element */ 46 }; 47 48 struct qeth_dbf_info { 49 char name[DEBUG_MAX_NAME_LEN]; 50 int pages; 51 int areas; 52 int len; 53 int level; 54 struct debug_view *view; 55 debug_info_t *id; 56 }; 57 58 #define QETH_DBF_CTRL_LEN 256 59 60 #define QETH_DBF_TEXT(name, level, text) \ 61 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 62 63 #define QETH_DBF_HEX(name, level, addr, len) \ 64 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 65 66 #define QETH_DBF_MESSAGE(level, text...) \ 67 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 68 69 #define QETH_DBF_TEXT_(name, level, text...) \ 70 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 71 72 #define QETH_CARD_TEXT(card, level, text) \ 73 debug_text_event(card->debug, level, text) 74 75 #define QETH_CARD_HEX(card, level, addr, len) \ 76 debug_event(card->debug, level, (void *)(addr), len) 77 78 #define QETH_CARD_MESSAGE(card, text...) \ 79 debug_sprintf_event(card->debug, level, text) 80 81 #define QETH_CARD_TEXT_(card, level, text...) \ 82 qeth_dbf_longtext(card->debug, level, text) 83 84 #define SENSE_COMMAND_REJECT_BYTE 0 85 #define SENSE_COMMAND_REJECT_FLAG 0x80 86 #define SENSE_RESETTING_EVENT_BYTE 1 87 #define SENSE_RESETTING_EVENT_FLAG 0x80 88 89 /* 90 * Common IO related definitions 91 */ 92 #define CARD_RDEV(card) card->read.ccwdev 93 #define CARD_WDEV(card) card->write.ccwdev 94 #define CARD_DDEV(card) card->data.ccwdev 95 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 96 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 97 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 98 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 99 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) 100 101 /** 102 * card stuff 103 */ 104 struct qeth_perf_stats { 105 unsigned int bufs_rec; 106 unsigned int bufs_sent; 107 108 unsigned int skbs_sent_pack; 109 unsigned int bufs_sent_pack; 110 111 unsigned int sc_dp_p; 112 unsigned int sc_p_dp; 113 /* qdio_cq_handler: number of times called, time spent in */ 114 __u64 cq_start_time; 115 unsigned int cq_cnt; 116 unsigned int cq_time; 117 /* qdio_input_handler: number of times called, time spent in */ 118 __u64 inbound_start_time; 119 unsigned int inbound_cnt; 120 unsigned int inbound_time; 121 /* qeth_send_packet: number of times called, time spent in */ 122 __u64 outbound_start_time; 123 unsigned int outbound_cnt; 124 unsigned int outbound_time; 125 /* qdio_output_handler: number of times called, time spent in */ 126 __u64 outbound_handler_start_time; 127 unsigned int outbound_handler_cnt; 128 unsigned int outbound_handler_time; 129 /* number of calls to and time spent in do_QDIO for inbound queue */ 130 __u64 inbound_do_qdio_start_time; 131 unsigned int inbound_do_qdio_cnt; 132 unsigned int inbound_do_qdio_time; 133 /* number of calls to and time spent in do_QDIO for outbound queues */ 134 __u64 outbound_do_qdio_start_time; 135 unsigned int outbound_do_qdio_cnt; 136 unsigned int outbound_do_qdio_time; 137 unsigned int large_send_bytes; 138 unsigned int large_send_cnt; 139 unsigned int sg_skbs_sent; 140 unsigned int sg_frags_sent; 141 /* initial values when measuring starts */ 142 unsigned long initial_rx_packets; 143 unsigned long initial_tx_packets; 144 /* inbound scatter gather data */ 145 unsigned int sg_skbs_rx; 146 unsigned int sg_frags_rx; 147 unsigned int sg_alloc_page_rx; 148 unsigned int tx_csum; 149 unsigned int tx_lin; 150 }; 151 152 /* Routing stuff */ 153 struct qeth_routing_info { 154 enum qeth_routing_types type; 155 }; 156 157 /* IPA stuff */ 158 struct qeth_ipa_info { 159 __u32 supported_funcs; 160 __u32 enabled_funcs; 161 }; 162 163 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 164 enum qeth_ipa_funcs func) 165 { 166 return (ipa->supported_funcs & func); 167 } 168 169 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 170 enum qeth_ipa_funcs func) 171 { 172 return (ipa->supported_funcs & ipa->enabled_funcs & func); 173 } 174 175 #define qeth_adp_supported(c, f) \ 176 qeth_is_ipa_supported(&c->options.adp, f) 177 #define qeth_adp_enabled(c, f) \ 178 qeth_is_ipa_enabled(&c->options.adp, f) 179 #define qeth_is_supported(c, f) \ 180 qeth_is_ipa_supported(&c->options.ipa4, f) 181 #define qeth_is_enabled(c, f) \ 182 qeth_is_ipa_enabled(&c->options.ipa4, f) 183 #define qeth_is_supported6(c, f) \ 184 qeth_is_ipa_supported(&c->options.ipa6, f) 185 #define qeth_is_enabled6(c, f) \ 186 qeth_is_ipa_enabled(&c->options.ipa6, f) 187 #define qeth_is_ipafunc_supported(c, prot, f) \ 188 ((prot == QETH_PROT_IPV6) ? \ 189 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 190 #define qeth_is_ipafunc_enabled(c, prot, f) \ 191 ((prot == QETH_PROT_IPV6) ? \ 192 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 193 194 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 195 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 196 197 #define QETH_MODELLIST_ARRAY \ 198 {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \ 199 {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \ 200 {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \ 201 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \ 202 {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \ 203 {0, 0, 0, 0, 0, 0} } 204 #define QETH_CU_TYPE_IND 0 205 #define QETH_CU_MODEL_IND 1 206 #define QETH_DEV_TYPE_IND 2 207 #define QETH_DEV_MODEL_IND 3 208 #define QETH_QUEUE_NO_IND 4 209 #define QETH_MULTICAST_IND 5 210 211 #define QETH_REAL_CARD 1 212 #define QETH_VLAN_CARD 2 213 #define QETH_BUFSIZE 4096 214 215 /** 216 * some more defs 217 */ 218 #define QETH_TX_TIMEOUT 100 * HZ 219 #define QETH_RCD_TIMEOUT 60 * HZ 220 #define QETH_RECLAIM_WORK_TIME HZ 221 #define QETH_HEADER_SIZE 32 222 #define QETH_MAX_PORTNO 15 223 224 /*IPv6 address autoconfiguration stuff*/ 225 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 226 #define UNIQUE_ID_NOT_BY_CARD 0x10000 227 228 /*****************************************************************************/ 229 /* QDIO queue and buffer handling */ 230 /*****************************************************************************/ 231 #define QETH_MAX_QUEUES 4 232 #define QETH_IN_BUF_SIZE_DEFAULT 65536 233 #define QETH_IN_BUF_COUNT_DEFAULT 64 234 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 235 #define QETH_IN_BUF_COUNT_MIN 8 236 #define QETH_IN_BUF_COUNT_MAX 128 237 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 238 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 239 ((card)->qdio.in_buf_pool.buf_count / 2) 240 241 /* buffers we have to be behind before we get a PCI */ 242 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 243 /*enqueued free buffers left before we get a PCI*/ 244 #define QETH_PCI_THRESHOLD_B(card) 0 245 /*not used unless the microcode gets patched*/ 246 #define QETH_PCI_TIMER_VALUE(card) 3 247 248 /* priority queing */ 249 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 250 #define QETH_DEFAULT_QUEUE 2 251 #define QETH_NO_PRIO_QUEUEING 0 252 #define QETH_PRIO_Q_ING_PREC 1 253 #define QETH_PRIO_Q_ING_TOS 2 254 #define IP_TOS_LOWDELAY 0x10 255 #define IP_TOS_HIGHTHROUGHPUT 0x08 256 #define IP_TOS_HIGHRELIABILITY 0x04 257 #define IP_TOS_NOTIMPORTANT 0x02 258 259 /* Packing */ 260 #define QETH_LOW_WATERMARK_PACK 2 261 #define QETH_HIGH_WATERMARK_PACK 5 262 #define QETH_WATERMARK_PACK_FUZZ 1 263 264 #define QETH_IP_HEADER_SIZE 40 265 266 /* large receive scatter gather copy break */ 267 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 268 #define QETH_RX_PULL_LEN 256 269 270 struct qeth_hdr_layer3 { 271 __u8 id; 272 __u8 flags; 273 __u16 inbound_checksum; /*TSO:__u16 seqno */ 274 __u32 token; /*TSO: __u32 reserved */ 275 __u16 length; 276 __u8 vlan_prio; 277 __u8 ext_flags; 278 __u16 vlan_id; 279 __u16 frame_offset; 280 __u8 dest_addr[16]; 281 } __attribute__ ((packed)); 282 283 struct qeth_hdr_layer2 { 284 __u8 id; 285 __u8 flags[3]; 286 __u8 port_no; 287 __u8 hdr_length; 288 __u16 pkt_length; 289 __u16 seq_no; 290 __u16 vlan_id; 291 __u32 reserved; 292 __u8 reserved2[16]; 293 } __attribute__ ((packed)); 294 295 struct qeth_hdr_osn { 296 __u8 id; 297 __u8 reserved; 298 __u16 seq_no; 299 __u16 reserved2; 300 __u16 control_flags; 301 __u16 pdu_length; 302 __u8 reserved3[18]; 303 __u32 ccid; 304 } __attribute__ ((packed)); 305 306 struct qeth_hdr { 307 union { 308 struct qeth_hdr_layer2 l2; 309 struct qeth_hdr_layer3 l3; 310 struct qeth_hdr_osn osn; 311 } hdr; 312 } __attribute__ ((packed)); 313 314 /*TCP Segmentation Offload header*/ 315 struct qeth_hdr_ext_tso { 316 __u16 hdr_tot_len; 317 __u8 imb_hdr_no; 318 __u8 reserved; 319 __u8 hdr_type; 320 __u8 hdr_version; 321 __u16 hdr_len; 322 __u32 payload_len; 323 __u16 mss; 324 __u16 dg_hdr_len; 325 __u8 padding[16]; 326 } __attribute__ ((packed)); 327 328 struct qeth_hdr_tso { 329 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 330 struct qeth_hdr_ext_tso ext; 331 } __attribute__ ((packed)); 332 333 334 /* flags for qeth_hdr.flags */ 335 #define QETH_HDR_PASSTHRU 0x10 336 #define QETH_HDR_IPV6 0x80 337 #define QETH_HDR_CAST_MASK 0x07 338 enum qeth_cast_flags { 339 QETH_CAST_UNICAST = 0x06, 340 QETH_CAST_MULTICAST = 0x04, 341 QETH_CAST_BROADCAST = 0x05, 342 QETH_CAST_ANYCAST = 0x07, 343 QETH_CAST_NOCAST = 0x00, 344 }; 345 346 enum qeth_layer2_frame_flags { 347 QETH_LAYER2_FLAG_MULTICAST = 0x01, 348 QETH_LAYER2_FLAG_BROADCAST = 0x02, 349 QETH_LAYER2_FLAG_UNICAST = 0x04, 350 QETH_LAYER2_FLAG_VLAN = 0x10, 351 }; 352 353 enum qeth_header_ids { 354 QETH_HEADER_TYPE_LAYER3 = 0x01, 355 QETH_HEADER_TYPE_LAYER2 = 0x02, 356 QETH_HEADER_TYPE_TSO = 0x03, 357 QETH_HEADER_TYPE_OSN = 0x04, 358 }; 359 /* flags for qeth_hdr.ext_flags */ 360 #define QETH_HDR_EXT_VLAN_FRAME 0x01 361 #define QETH_HDR_EXT_TOKEN_ID 0x02 362 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 363 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 364 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 365 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 366 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 367 368 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) 369 { 370 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); 371 } 372 373 enum qeth_qdio_buffer_states { 374 /* 375 * inbound: read out by driver; owned by hardware in order to be filled 376 * outbound: owned by driver in order to be filled 377 */ 378 QETH_QDIO_BUF_EMPTY, 379 /* 380 * inbound: filled by hardware; owned by driver in order to be read out 381 * outbound: filled by driver; owned by hardware in order to be sent 382 */ 383 QETH_QDIO_BUF_PRIMED, 384 /* 385 * inbound: not applicable 386 * outbound: identified to be pending in TPQ 387 */ 388 QETH_QDIO_BUF_PENDING, 389 /* 390 * inbound: not applicable 391 * outbound: found in completion queue 392 */ 393 QETH_QDIO_BUF_IN_CQ, 394 /* 395 * inbound: not applicable 396 * outbound: handled via transfer pending / completion queue 397 */ 398 QETH_QDIO_BUF_HANDLED_DELAYED, 399 }; 400 401 enum qeth_qdio_info_states { 402 QETH_QDIO_UNINITIALIZED, 403 QETH_QDIO_ALLOCATED, 404 QETH_QDIO_ESTABLISHED, 405 QETH_QDIO_CLEANING 406 }; 407 408 struct qeth_buffer_pool_entry { 409 struct list_head list; 410 struct list_head init_list; 411 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 412 }; 413 414 struct qeth_qdio_buffer_pool { 415 struct list_head entry_list; 416 int buf_count; 417 }; 418 419 struct qeth_qdio_buffer { 420 struct qdio_buffer *buffer; 421 /* the buffer pool entry currently associated to this buffer */ 422 struct qeth_buffer_pool_entry *pool_entry; 423 struct sk_buff *rx_skb; 424 }; 425 426 struct qeth_qdio_q { 427 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 428 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 429 int next_buf_to_init; 430 } __attribute__ ((aligned(256))); 431 432 struct qeth_qdio_out_buffer { 433 struct qdio_buffer *buffer; 434 atomic_t state; 435 int next_element_to_fill; 436 struct sk_buff_head skb_list; 437 int is_header[16]; 438 439 struct qaob *aob; 440 struct qeth_qdio_out_q *q; 441 struct qeth_qdio_out_buffer *next_pending; 442 }; 443 444 struct qeth_card; 445 446 enum qeth_out_q_states { 447 QETH_OUT_Q_UNLOCKED, 448 QETH_OUT_Q_LOCKED, 449 QETH_OUT_Q_LOCKED_FLUSH, 450 }; 451 452 struct qeth_qdio_out_q { 453 struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 454 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 455 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 456 int queue_no; 457 struct qeth_card *card; 458 atomic_t state; 459 int do_pack; 460 /* 461 * index of buffer to be filled by driver; state EMPTY or PACKING 462 */ 463 int next_buf_to_fill; 464 /* 465 * number of buffers that are currently filled (PRIMED) 466 * -> these buffers are hardware-owned 467 */ 468 atomic_t used_buffers; 469 /* indicates whether PCI flag must be set (or if one is outstanding) */ 470 atomic_t set_pci_flags_count; 471 } __attribute__ ((aligned(256))); 472 473 struct qeth_qdio_info { 474 atomic_t state; 475 /* input */ 476 int no_in_queues; 477 struct qeth_qdio_q *in_q; 478 struct qeth_qdio_q *c_q; 479 struct qeth_qdio_buffer_pool in_buf_pool; 480 struct qeth_qdio_buffer_pool init_pool; 481 int in_buf_size; 482 483 /* output */ 484 int no_out_queues; 485 struct qeth_qdio_out_q **out_qs; 486 struct qdio_outbuf_state *out_bufstates; 487 488 /* priority queueing */ 489 int do_prio_queueing; 490 int default_out_queue; 491 }; 492 493 enum qeth_send_errors { 494 QETH_SEND_ERROR_NONE, 495 QETH_SEND_ERROR_LINK_FAILURE, 496 QETH_SEND_ERROR_RETRY, 497 QETH_SEND_ERROR_KICK_IT, 498 }; 499 500 #define QETH_ETH_MAC_V4 0x0100 /* like v4 */ 501 #define QETH_ETH_MAC_V6 0x3333 /* like v6 */ 502 /* tr mc mac is longer, but that will be enough to detect mc frames */ 503 #define QETH_TR_MAC_NC 0xc000 /* non-canonical */ 504 #define QETH_TR_MAC_C 0x0300 /* canonical */ 505 506 #define DEFAULT_ADD_HHLEN 0 507 #define MAX_ADD_HHLEN 1024 508 509 /** 510 * buffer stuff for read channel 511 */ 512 #define QETH_CMD_BUFFER_NO 8 513 514 /** 515 * channel state machine 516 */ 517 enum qeth_channel_states { 518 CH_STATE_UP, 519 CH_STATE_DOWN, 520 CH_STATE_ACTIVATING, 521 CH_STATE_HALTED, 522 CH_STATE_STOPPED, 523 CH_STATE_RCD, 524 CH_STATE_RCD_DONE, 525 }; 526 /** 527 * card state machine 528 */ 529 enum qeth_card_states { 530 CARD_STATE_DOWN, 531 CARD_STATE_HARDSETUP, 532 CARD_STATE_SOFTSETUP, 533 CARD_STATE_UP, 534 CARD_STATE_RECOVER, 535 }; 536 537 /** 538 * Protocol versions 539 */ 540 enum qeth_prot_versions { 541 QETH_PROT_IPV4 = 0x0004, 542 QETH_PROT_IPV6 = 0x0006, 543 }; 544 545 enum qeth_ip_types { 546 QETH_IP_TYPE_NORMAL, 547 QETH_IP_TYPE_VIPA, 548 QETH_IP_TYPE_RXIP, 549 QETH_IP_TYPE_DEL_ALL_MC, 550 }; 551 552 enum qeth_cmd_buffer_state { 553 BUF_STATE_FREE, 554 BUF_STATE_LOCKED, 555 BUF_STATE_PROCESSED, 556 }; 557 558 enum qeth_cq { 559 QETH_CQ_DISABLED = 0, 560 QETH_CQ_ENABLED = 1, 561 QETH_CQ_NOTAVAILABLE = 2, 562 }; 563 564 struct qeth_ipato { 565 int enabled; 566 int invert4; 567 int invert6; 568 struct list_head entries; 569 }; 570 571 struct qeth_channel; 572 573 struct qeth_cmd_buffer { 574 enum qeth_cmd_buffer_state state; 575 struct qeth_channel *channel; 576 unsigned char *data; 577 int rc; 578 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); 579 }; 580 581 /** 582 * definition of a qeth channel, used for read and write 583 */ 584 struct qeth_channel { 585 enum qeth_channel_states state; 586 struct ccw1 ccw; 587 spinlock_t iob_lock; 588 wait_queue_head_t wait_q; 589 struct tasklet_struct irq_tasklet; 590 struct ccw_device *ccwdev; 591 /*command buffer for control data*/ 592 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 593 atomic_t irq_pending; 594 int io_buf_no; 595 int buf_no; 596 }; 597 598 /** 599 * OSA card related definitions 600 */ 601 struct qeth_token { 602 __u32 issuer_rm_w; 603 __u32 issuer_rm_r; 604 __u32 cm_filter_w; 605 __u32 cm_filter_r; 606 __u32 cm_connection_w; 607 __u32 cm_connection_r; 608 __u32 ulp_filter_w; 609 __u32 ulp_filter_r; 610 __u32 ulp_connection_w; 611 __u32 ulp_connection_r; 612 }; 613 614 struct qeth_seqno { 615 __u32 trans_hdr; 616 __u32 pdu_hdr; 617 __u32 pdu_hdr_ack; 618 __u16 ipa; 619 __u32 pkt_seqno; 620 }; 621 622 struct qeth_reply { 623 struct list_head list; 624 wait_queue_head_t wait_q; 625 int (*callback)(struct qeth_card *, struct qeth_reply *, 626 unsigned long); 627 u32 seqno; 628 unsigned long offset; 629 atomic_t received; 630 int rc; 631 void *param; 632 struct qeth_card *card; 633 atomic_t refcnt; 634 }; 635 636 637 struct qeth_card_blkt { 638 int time_total; 639 int inter_packet; 640 int inter_packet_jumbo; 641 }; 642 643 #define QETH_BROADCAST_WITH_ECHO 0x01 644 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 645 #define QETH_LAYER2_MAC_READ 0x01 646 #define QETH_LAYER2_MAC_REGISTERED 0x02 647 struct qeth_card_info { 648 unsigned short unit_addr2; 649 unsigned short cula; 650 unsigned short chpid; 651 __u16 func_level; 652 char mcl_level[QETH_MCL_LENGTH + 1]; 653 int guestlan; 654 int mac_bits; 655 int portname_required; 656 int portno; 657 char portname[9]; 658 enum qeth_card_types type; 659 enum qeth_link_types link_type; 660 int is_multicast_different; 661 int initial_mtu; 662 int max_mtu; 663 int broadcast_capable; 664 int unique_id; 665 struct qeth_card_blkt blkt; 666 __u32 csum_mask; 667 __u32 tx_csum_mask; 668 enum qeth_ipa_promisc_modes promisc_mode; 669 __u32 diagass_support; 670 __u32 hwtrap; 671 }; 672 673 struct qeth_card_options { 674 struct qeth_routing_info route4; 675 struct qeth_ipa_info ipa4; 676 struct qeth_ipa_info adp; /*Adapter parameters*/ 677 struct qeth_routing_info route6; 678 struct qeth_ipa_info ipa6; 679 int broadcast_mode; 680 int macaddr_mode; 681 int fake_broadcast; 682 int add_hhlen; 683 int layer2; 684 int performance_stats; 685 int rx_sg_cb; 686 enum qeth_ipa_isolation_modes isolation; 687 int sniffer; 688 enum qeth_cq cq; 689 char hsuid[9]; 690 }; 691 692 /* 693 * thread bits for qeth_card thread masks 694 */ 695 enum qeth_threads { 696 QETH_RECOVER_THREAD = 1, 697 }; 698 699 struct qeth_osn_info { 700 int (*assist_cb)(struct net_device *dev, void *data); 701 int (*data_cb)(struct sk_buff *skb); 702 }; 703 704 enum qeth_discipline_id { 705 QETH_DISCIPLINE_LAYER3 = 0, 706 QETH_DISCIPLINE_LAYER2 = 1, 707 }; 708 709 struct qeth_discipline { 710 void (*start_poll)(struct ccw_device *, int, unsigned long); 711 qdio_handler_t *input_handler; 712 qdio_handler_t *output_handler; 713 int (*recover)(void *ptr); 714 struct ccwgroup_driver *ccwgdriver; 715 }; 716 717 struct qeth_vlan_vid { 718 struct list_head list; 719 unsigned short vid; 720 }; 721 722 struct qeth_mc_mac { 723 struct list_head list; 724 __u8 mc_addr[MAX_ADDR_LEN]; 725 unsigned char mc_addrlen; 726 int is_vmac; 727 }; 728 729 struct qeth_rx { 730 int b_count; 731 int b_index; 732 struct qdio_buffer_element *b_element; 733 int e_offset; 734 int qdio_err; 735 }; 736 737 #define QETH_NAPI_WEIGHT 128 738 739 struct qeth_card { 740 struct list_head list; 741 enum qeth_card_states state; 742 int lan_online; 743 spinlock_t lock; 744 struct ccwgroup_device *gdev; 745 struct qeth_channel read; 746 struct qeth_channel write; 747 struct qeth_channel data; 748 749 struct net_device *dev; 750 struct net_device_stats stats; 751 752 struct qeth_card_info info; 753 struct qeth_token token; 754 struct qeth_seqno seqno; 755 struct qeth_card_options options; 756 757 wait_queue_head_t wait_q; 758 spinlock_t vlanlock; 759 spinlock_t mclock; 760 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 761 struct list_head vid_list; 762 struct list_head mc_list; 763 struct work_struct kernel_thread_starter; 764 spinlock_t thread_mask_lock; 765 unsigned long thread_start_mask; 766 unsigned long thread_allowed_mask; 767 unsigned long thread_running_mask; 768 spinlock_t ip_lock; 769 struct list_head ip_list; 770 struct list_head *ip_tbd_list; 771 struct qeth_ipato ipato; 772 struct list_head cmd_waiter_list; 773 /* QDIO buffer handling */ 774 struct qeth_qdio_info qdio; 775 struct qeth_perf_stats perf_stats; 776 int read_or_write_problem; 777 struct qeth_osn_info osn_info; 778 struct qeth_discipline discipline; 779 atomic_t force_alloc_skb; 780 struct service_level qeth_service_level; 781 struct qdio_ssqd_desc ssqd; 782 debug_info_t *debug; 783 struct mutex conf_mutex; 784 struct mutex discipline_mutex; 785 struct napi_struct napi; 786 struct qeth_rx rx; 787 struct delayed_work buffer_reclaim_work; 788 int reclaim_index; 789 }; 790 791 struct qeth_card_list_struct { 792 struct list_head list; 793 rwlock_t rwlock; 794 }; 795 796 struct qeth_trap_id { 797 __u16 lparnr; 798 char vmname[8]; 799 __u8 chpid; 800 __u8 ssid; 801 __u16 devno; 802 } __packed; 803 804 /*some helper functions*/ 805 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 806 807 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) 808 { 809 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *) 810 dev_get_drvdata(&cdev->dev))->dev); 811 return card; 812 } 813 814 static inline int qeth_get_micros(void) 815 { 816 return (int) (get_clock() >> 12); 817 } 818 819 static inline int qeth_get_ip_version(struct sk_buff *skb) 820 { 821 struct ethhdr *ehdr = (struct ethhdr *)skb->data; 822 switch (ehdr->h_proto) { 823 case ETH_P_IPV6: 824 return 6; 825 case ETH_P_IP: 826 return 4; 827 default: 828 return 0; 829 } 830 } 831 832 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 833 struct qeth_buffer_pool_entry *entry) 834 { 835 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 836 } 837 838 static inline int qeth_is_diagass_supported(struct qeth_card *card, 839 enum qeth_diags_cmds cmd) 840 { 841 return card->info.diagass_support & (__u32)cmd; 842 } 843 844 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver; 845 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver; 846 const char *qeth_get_cardname_short(struct qeth_card *); 847 int qeth_realloc_buffer_pool(struct qeth_card *, int); 848 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 849 void qeth_core_free_discipline(struct qeth_card *); 850 int qeth_core_create_device_attributes(struct device *); 851 void qeth_core_remove_device_attributes(struct device *); 852 int qeth_core_create_osn_attributes(struct device *); 853 void qeth_core_remove_osn_attributes(struct device *); 854 void qeth_buffer_reclaim_work(struct work_struct *); 855 856 /* exports for qeth discipline device drivers */ 857 extern struct qeth_card_list_struct qeth_core_card_list; 858 extern struct kmem_cache *qeth_core_header_cache; 859 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 860 861 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 862 int qeth_threads_running(struct qeth_card *, unsigned long); 863 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 864 int qeth_do_run_thread(struct qeth_card *, unsigned long); 865 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 866 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 867 int qeth_core_hardsetup_card(struct qeth_card *); 868 void qeth_print_status_message(struct qeth_card *); 869 int qeth_init_qdio_queues(struct qeth_card *); 870 int qeth_send_startlan(struct qeth_card *); 871 int qeth_send_stoplan(struct qeth_card *); 872 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 873 int (*reply_cb) 874 (struct qeth_card *, struct qeth_reply *, unsigned long), 875 void *); 876 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 877 enum qeth_ipa_cmds, enum qeth_prot_versions); 878 int qeth_query_setadapterparms(struct qeth_card *); 879 int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *, 880 unsigned int, const char *); 881 void qeth_queue_input_buffer(struct qeth_card *, int); 882 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 883 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 884 struct qeth_hdr **); 885 void qeth_schedule_recovery(struct qeth_card *); 886 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long); 887 void qeth_qdio_input_handler(struct ccw_device *, 888 unsigned int, unsigned int, int, 889 int, unsigned long); 890 void qeth_qdio_output_handler(struct ccw_device *, unsigned int, 891 int, int, int, unsigned long); 892 void qeth_clear_ipacmd_list(struct qeth_card *); 893 int qeth_qdio_clear_card(struct qeth_card *, int); 894 void qeth_clear_working_pool_list(struct qeth_card *); 895 void qeth_clear_cmd_buffers(struct qeth_channel *); 896 void qeth_clear_qdio_buffers(struct qeth_card *); 897 void qeth_setadp_promisc_mode(struct qeth_card *); 898 struct net_device_stats *qeth_get_stats(struct net_device *); 899 int qeth_change_mtu(struct net_device *, int); 900 int qeth_setadpparms_change_macaddr(struct qeth_card *); 901 void qeth_tx_timeout(struct net_device *); 902 void qeth_prepare_control_data(struct qeth_card *, int, 903 struct qeth_cmd_buffer *); 904 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 905 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); 906 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 907 int qeth_mdio_read(struct net_device *, int, int); 908 int qeth_snmp_command(struct qeth_card *, char __user *); 909 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32); 910 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *, 911 unsigned long); 912 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 913 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 914 void *reply_param); 915 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); 916 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); 917 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, 918 struct sk_buff *, struct qeth_hdr *, int, int, int); 919 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, 920 struct sk_buff *, struct qeth_hdr *, int); 921 int qeth_core_get_sset_count(struct net_device *, int); 922 void qeth_core_get_ethtool_stats(struct net_device *, 923 struct ethtool_stats *, u64 *); 924 void qeth_core_get_strings(struct net_device *, u32, u8 *); 925 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 926 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 927 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *); 928 int qeth_set_access_ctrl_online(struct qeth_card *card); 929 int qeth_hdr_chk_and_bounce(struct sk_buff *, int); 930 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 931 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 932 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot); 933 934 /* exports for OSN */ 935 int qeth_osn_assist(struct net_device *, void *, int); 936 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 937 int (*assist_cb)(struct net_device *, void *), 938 int (*data_cb)(struct sk_buff *)); 939 void qeth_osn_deregister(struct net_device *); 940 941 #endif /* __QETH_CORE_H__ */ 942