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/completion.h> 14 #include <linux/if.h> 15 #include <linux/if_arp.h> 16 #include <linux/etherdevice.h> 17 #include <linux/if_vlan.h> 18 #include <linux/ctype.h> 19 #include <linux/in6.h> 20 #include <linux/bitops.h> 21 #include <linux/seq_file.h> 22 #include <linux/hashtable.h> 23 #include <linux/ip.h> 24 #include <linux/refcount.h> 25 #include <linux/wait.h> 26 #include <linux/workqueue.h> 27 28 #include <net/dst.h> 29 #include <net/ip6_fib.h> 30 #include <net/ipv6.h> 31 #include <net/if_inet6.h> 32 #include <net/addrconf.h> 33 #include <net/tcp.h> 34 35 #include <asm/debug.h> 36 #include <asm/qdio.h> 37 #include <asm/ccwdev.h> 38 #include <asm/ccwgroup.h> 39 #include <asm/sysinfo.h> 40 41 #include <uapi/linux/if_link.h> 42 43 #include "qeth_core_mpc.h" 44 45 /** 46 * Debug Facility stuff 47 */ 48 enum qeth_dbf_names { 49 QETH_DBF_SETUP, 50 QETH_DBF_MSG, 51 QETH_DBF_CTRL, 52 QETH_DBF_INFOS /* must be last element */ 53 }; 54 55 struct qeth_dbf_info { 56 char name[DEBUG_MAX_NAME_LEN]; 57 int pages; 58 int areas; 59 int len; 60 int level; 61 struct debug_view *view; 62 debug_info_t *id; 63 }; 64 65 #define QETH_DBF_CTRL_LEN 256U 66 67 #define QETH_DBF_TEXT(name, level, text) \ 68 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 69 70 #define QETH_DBF_HEX(name, level, addr, len) \ 71 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 72 73 #define QETH_DBF_MESSAGE(level, text...) \ 74 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 75 76 #define QETH_DBF_TEXT_(name, level, text...) \ 77 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 78 79 #define QETH_CARD_TEXT(card, level, text) \ 80 debug_text_event(card->debug, level, text) 81 82 #define QETH_CARD_HEX(card, level, addr, len) \ 83 debug_event(card->debug, level, (void *)(addr), len) 84 85 #define QETH_CARD_MESSAGE(card, text...) \ 86 debug_sprintf_event(card->debug, level, text) 87 88 #define QETH_CARD_TEXT_(card, level, text...) \ 89 qeth_dbf_longtext(card->debug, level, text) 90 91 #define SENSE_COMMAND_REJECT_BYTE 0 92 #define SENSE_COMMAND_REJECT_FLAG 0x80 93 #define SENSE_RESETTING_EVENT_BYTE 1 94 #define SENSE_RESETTING_EVENT_FLAG 0x80 95 96 static inline u32 qeth_get_device_id(struct ccw_device *cdev) 97 { 98 struct ccw_dev_id dev_id; 99 u32 id; 100 101 ccw_device_get_id(cdev, &dev_id); 102 id = dev_id.devno; 103 id |= (u32) (dev_id.ssid << 16); 104 105 return id; 106 } 107 108 /* 109 * Common IO related definitions 110 */ 111 #define CARD_RDEV(card) card->read.ccwdev 112 #define CARD_WDEV(card) card->write.ccwdev 113 #define CARD_DDEV(card) card->data.ccwdev 114 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 115 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 116 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 117 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 118 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev)) 119 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card))) 120 121 /* Routing stuff */ 122 struct qeth_routing_info { 123 enum qeth_routing_types type; 124 }; 125 126 /* IPA stuff */ 127 struct qeth_ipa_info { 128 __u32 supported_funcs; 129 __u32 enabled_funcs; 130 }; 131 132 /* SETBRIDGEPORT stuff */ 133 enum qeth_sbp_roles { 134 QETH_SBP_ROLE_NONE = 0, 135 QETH_SBP_ROLE_PRIMARY = 1, 136 QETH_SBP_ROLE_SECONDARY = 2, 137 }; 138 139 enum qeth_sbp_states { 140 QETH_SBP_STATE_INACTIVE = 0, 141 QETH_SBP_STATE_STANDBY = 1, 142 QETH_SBP_STATE_ACTIVE = 2, 143 }; 144 145 #define QETH_SBP_HOST_NOTIFICATION 1 146 147 struct qeth_sbp_info { 148 __u32 supported_funcs; 149 enum qeth_sbp_roles role; 150 __u32 hostnotification:1; 151 __u32 reflect_promisc:1; 152 __u32 reflect_promisc_primary:1; 153 }; 154 155 struct qeth_vnicc_info { 156 /* supported/currently configured VNICCs; updated in IPA exchanges */ 157 u32 sup_chars; 158 u32 cur_chars; 159 /* supported commands: bitmasks which VNICCs support respective cmd */ 160 u32 set_char_sup; 161 u32 getset_timeout_sup; 162 /* timeout value for the learning characteristic */ 163 u32 learning_timeout; 164 /* characteristics wanted/configured by user */ 165 u32 wanted_chars; 166 /* has user explicitly enabled rx_bcast while online? */ 167 bool rx_bcast_enabled; 168 }; 169 170 static inline int qeth_is_adp_supported(struct qeth_ipa_info *ipa, 171 enum qeth_ipa_setadp_cmd func) 172 { 173 return (ipa->supported_funcs & func); 174 } 175 176 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 177 enum qeth_ipa_funcs func) 178 { 179 return (ipa->supported_funcs & func); 180 } 181 182 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 183 enum qeth_ipa_funcs func) 184 { 185 return (ipa->supported_funcs & ipa->enabled_funcs & func); 186 } 187 188 #define qeth_adp_supported(c, f) \ 189 qeth_is_adp_supported(&c->options.adp, f) 190 #define qeth_is_supported(c, f) \ 191 qeth_is_ipa_supported(&c->options.ipa4, f) 192 #define qeth_is_enabled(c, f) \ 193 qeth_is_ipa_enabled(&c->options.ipa4, f) 194 #define qeth_is_supported6(c, f) \ 195 qeth_is_ipa_supported(&c->options.ipa6, f) 196 #define qeth_is_enabled6(c, f) \ 197 qeth_is_ipa_enabled(&c->options.ipa6, f) 198 #define qeth_is_ipafunc_supported(c, prot, f) \ 199 ((prot == QETH_PROT_IPV6) ? \ 200 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 201 #define qeth_is_ipafunc_enabled(c, prot, f) \ 202 ((prot == QETH_PROT_IPV6) ? \ 203 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 204 205 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 206 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 207 208 #define QETH_BUFSIZE 4096 209 #define CCW_CMD_WRITE 0x01 210 #define CCW_CMD_READ 0x02 211 212 /** 213 * some more defs 214 */ 215 #define QETH_TX_TIMEOUT 100 * HZ 216 #define QETH_RCD_TIMEOUT 60 * HZ 217 #define QETH_RECLAIM_WORK_TIME HZ 218 #define QETH_MAX_PORTNO 15 219 220 /*IPv6 address autoconfiguration stuff*/ 221 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 222 #define UNIQUE_ID_NOT_BY_CARD 0x10000 223 224 /*****************************************************************************/ 225 /* QDIO queue and buffer handling */ 226 /*****************************************************************************/ 227 #define QETH_MAX_QUEUES 4 228 #define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */ 229 #define QETH_IQD_MCAST_TXQ 0 230 #define QETH_IQD_MIN_UCAST_TXQ 1 231 #define QETH_IN_BUF_SIZE_DEFAULT 65536 232 #define QETH_IN_BUF_COUNT_DEFAULT 64 233 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 234 #define QETH_IN_BUF_COUNT_MIN 8 235 #define QETH_IN_BUF_COUNT_MAX 128 236 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 237 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 238 ((card)->qdio.in_buf_pool.buf_count / 2) 239 240 /* buffers we have to be behind before we get a PCI */ 241 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 242 /*enqueued free buffers left before we get a PCI*/ 243 #define QETH_PCI_THRESHOLD_B(card) 0 244 /*not used unless the microcode gets patched*/ 245 #define QETH_PCI_TIMER_VALUE(card) 3 246 247 /* priority queing */ 248 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 249 #define QETH_DEFAULT_QUEUE 2 250 #define QETH_NO_PRIO_QUEUEING 0 251 #define QETH_PRIO_Q_ING_PREC 1 252 #define QETH_PRIO_Q_ING_TOS 2 253 #define QETH_PRIO_Q_ING_SKB 3 254 #define QETH_PRIO_Q_ING_VLAN 4 255 256 /* Packing */ 257 #define QETH_LOW_WATERMARK_PACK 2 258 #define QETH_HIGH_WATERMARK_PACK 5 259 #define QETH_WATERMARK_PACK_FUZZ 1 260 261 /* large receive scatter gather copy break */ 262 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 263 #define QETH_RX_PULL_LEN 256 264 265 struct qeth_hdr_layer3 { 266 __u8 id; 267 __u8 flags; 268 __u16 inbound_checksum; /*TSO:__u16 seqno */ 269 __u32 token; /*TSO: __u32 reserved */ 270 __u16 length; 271 __u8 vlan_prio; 272 __u8 ext_flags; 273 __u16 vlan_id; 274 __u16 frame_offset; 275 union { 276 /* TX: */ 277 struct in6_addr ipv6_addr; 278 struct ipv4 { 279 u8 res[12]; 280 u32 addr; 281 } ipv4; 282 /* RX: */ 283 struct rx { 284 u8 res1[2]; 285 u8 src_mac[6]; 286 u8 res2[4]; 287 u16 vlan_id; 288 u8 res3[2]; 289 } rx; 290 } next_hop; 291 }; 292 293 struct qeth_hdr_layer2 { 294 __u8 id; 295 __u8 flags[3]; 296 __u8 port_no; 297 __u8 hdr_length; 298 __u16 pkt_length; 299 __u16 seq_no; 300 __u16 vlan_id; 301 __u32 reserved; 302 __u8 reserved2[16]; 303 } __attribute__ ((packed)); 304 305 struct qeth_hdr_osn { 306 __u8 id; 307 __u8 reserved; 308 __u16 seq_no; 309 __u16 reserved2; 310 __u16 control_flags; 311 __u16 pdu_length; 312 __u8 reserved3[18]; 313 __u32 ccid; 314 } __attribute__ ((packed)); 315 316 struct qeth_hdr { 317 union { 318 struct qeth_hdr_layer2 l2; 319 struct qeth_hdr_layer3 l3; 320 struct qeth_hdr_osn osn; 321 } hdr; 322 } __attribute__ ((packed)); 323 324 /*TCP Segmentation Offload header*/ 325 struct qeth_hdr_ext_tso { 326 __u16 hdr_tot_len; 327 __u8 imb_hdr_no; 328 __u8 reserved; 329 __u8 hdr_type; 330 __u8 hdr_version; 331 __u16 hdr_len; 332 __u32 payload_len; 333 __u16 mss; 334 __u16 dg_hdr_len; 335 __u8 padding[16]; 336 } __attribute__ ((packed)); 337 338 struct qeth_hdr_tso { 339 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 340 struct qeth_hdr_ext_tso ext; 341 } __attribute__ ((packed)); 342 343 344 /* flags for qeth_hdr.flags */ 345 #define QETH_HDR_PASSTHRU 0x10 346 #define QETH_HDR_IPV6 0x80 347 #define QETH_HDR_CAST_MASK 0x07 348 enum qeth_cast_flags { 349 QETH_CAST_UNICAST = 0x06, 350 QETH_CAST_MULTICAST = 0x04, 351 QETH_CAST_BROADCAST = 0x05, 352 QETH_CAST_ANYCAST = 0x07, 353 QETH_CAST_NOCAST = 0x00, 354 }; 355 356 enum qeth_layer2_frame_flags { 357 QETH_LAYER2_FLAG_MULTICAST = 0x01, 358 QETH_LAYER2_FLAG_BROADCAST = 0x02, 359 QETH_LAYER2_FLAG_UNICAST = 0x04, 360 QETH_LAYER2_FLAG_VLAN = 0x10, 361 }; 362 363 enum qeth_header_ids { 364 QETH_HEADER_TYPE_LAYER3 = 0x01, 365 QETH_HEADER_TYPE_LAYER2 = 0x02, 366 QETH_HEADER_TYPE_L3_TSO = 0x03, 367 QETH_HEADER_TYPE_OSN = 0x04, 368 QETH_HEADER_TYPE_L2_TSO = 0x06, 369 }; 370 /* flags for qeth_hdr.ext_flags */ 371 #define QETH_HDR_EXT_VLAN_FRAME 0x01 372 #define QETH_HDR_EXT_TOKEN_ID 0x02 373 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 374 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 375 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 376 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 377 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 378 379 enum qeth_qdio_info_states { 380 QETH_QDIO_UNINITIALIZED, 381 QETH_QDIO_ALLOCATED, 382 QETH_QDIO_ESTABLISHED, 383 QETH_QDIO_CLEANING 384 }; 385 386 struct qeth_buffer_pool_entry { 387 struct list_head list; 388 struct list_head init_list; 389 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 390 }; 391 392 struct qeth_qdio_buffer_pool { 393 struct list_head entry_list; 394 int buf_count; 395 }; 396 397 struct qeth_qdio_buffer { 398 struct qdio_buffer *buffer; 399 /* the buffer pool entry currently associated to this buffer */ 400 struct qeth_buffer_pool_entry *pool_entry; 401 struct sk_buff *rx_skb; 402 }; 403 404 struct qeth_qdio_q { 405 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 406 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 407 int next_buf_to_init; 408 }; 409 410 enum qeth_qdio_out_buffer_state { 411 /* Owned by driver, in order to be filled. */ 412 QETH_QDIO_BUF_EMPTY, 413 /* Filled by driver; owned by hardware in order to be sent. */ 414 QETH_QDIO_BUF_PRIMED, 415 /* Identified to be pending in TPQ. */ 416 QETH_QDIO_BUF_PENDING, 417 /* Found in completion queue. */ 418 QETH_QDIO_BUF_IN_CQ, 419 /* Handled via transfer pending / completion queue. */ 420 QETH_QDIO_BUF_HANDLED_DELAYED, 421 }; 422 423 struct qeth_qdio_out_buffer { 424 struct qdio_buffer *buffer; 425 atomic_t state; 426 int next_element_to_fill; 427 struct sk_buff_head skb_list; 428 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 429 430 struct qeth_qdio_out_q *q; 431 struct qeth_qdio_out_buffer *next_pending; 432 }; 433 434 struct qeth_card; 435 436 enum qeth_out_q_states { 437 QETH_OUT_Q_UNLOCKED, 438 QETH_OUT_Q_LOCKED, 439 QETH_OUT_Q_LOCKED_FLUSH, 440 }; 441 442 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val)) 443 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1) 444 445 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val)) 446 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1) 447 448 struct qeth_card_stats { 449 u64 rx_bufs; 450 u64 rx_skb_csum; 451 u64 rx_sg_skbs; 452 u64 rx_sg_frags; 453 u64 rx_sg_alloc_page; 454 455 /* rtnl_link_stats64 */ 456 u64 rx_packets; 457 u64 rx_bytes; 458 u64 rx_errors; 459 u64 rx_dropped; 460 u64 rx_multicast; 461 }; 462 463 struct qeth_out_q_stats { 464 u64 bufs; 465 u64 bufs_pack; 466 u64 buf_elements; 467 u64 skbs_pack; 468 u64 skbs_sg; 469 u64 skbs_csum; 470 u64 skbs_tso; 471 u64 skbs_linearized; 472 u64 skbs_linearized_fail; 473 u64 tso_bytes; 474 u64 packing_mode_switch; 475 u64 stopped; 476 477 /* rtnl_link_stats64 */ 478 u64 tx_packets; 479 u64 tx_bytes; 480 u64 tx_errors; 481 u64 tx_dropped; 482 }; 483 484 struct qeth_qdio_out_q { 485 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 486 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 487 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 488 struct qeth_out_q_stats stats; 489 u8 next_buf_to_fill; 490 u8 max_elements; 491 u8 queue_no; 492 u8 do_pack; 493 struct qeth_card *card; 494 atomic_t state; 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 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue) 505 { 506 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q; 507 } 508 509 struct qeth_qdio_info { 510 atomic_t state; 511 /* input */ 512 int no_in_queues; 513 struct qeth_qdio_q *in_q; 514 struct qeth_qdio_q *c_q; 515 struct qeth_qdio_buffer_pool in_buf_pool; 516 struct qeth_qdio_buffer_pool init_pool; 517 int in_buf_size; 518 519 /* output */ 520 int no_out_queues; 521 struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES]; 522 struct qdio_outbuf_state *out_bufstates; 523 524 /* priority queueing */ 525 int do_prio_queueing; 526 int default_out_queue; 527 }; 528 529 /** 530 * channel state machine 531 */ 532 enum qeth_channel_states { 533 CH_STATE_UP, 534 CH_STATE_DOWN, 535 CH_STATE_HALTED, 536 CH_STATE_STOPPED, 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 }; 546 547 /** 548 * Protocol versions 549 */ 550 enum qeth_prot_versions { 551 QETH_PROT_NONE = 0x0000, 552 QETH_PROT_IPV4 = 0x0004, 553 QETH_PROT_IPV6 = 0x0006, 554 }; 555 556 enum qeth_cq { 557 QETH_CQ_DISABLED = 0, 558 QETH_CQ_ENABLED = 1, 559 QETH_CQ_NOTAVAILABLE = 2, 560 }; 561 562 struct qeth_ipato { 563 bool enabled; 564 bool invert4; 565 bool invert6; 566 struct list_head entries; 567 }; 568 569 struct qeth_channel { 570 struct ccw_device *ccwdev; 571 enum qeth_channel_states state; 572 atomic_t irq_pending; 573 }; 574 575 struct qeth_cmd_buffer { 576 unsigned int length; 577 refcount_t ref_count; 578 struct qeth_channel *channel; 579 struct qeth_reply *reply; 580 long timeout; 581 unsigned char *data; 582 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob); 583 void (*callback)(struct qeth_card *card, struct qeth_cmd_buffer *iob); 584 }; 585 586 static inline void qeth_get_cmd(struct qeth_cmd_buffer *iob) 587 { 588 refcount_inc(&iob->ref_count); 589 } 590 591 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 592 { 593 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 594 } 595 596 static inline struct ccw1 *__ccw_from_cmd(struct qeth_cmd_buffer *iob) 597 { 598 return (struct ccw1 *)(iob->data + ALIGN(iob->length, 8)); 599 } 600 601 static inline bool qeth_trylock_channel(struct qeth_channel *channel) 602 { 603 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0; 604 } 605 606 /** 607 * OSA card related definitions 608 */ 609 struct qeth_token { 610 __u32 issuer_rm_w; 611 __u32 issuer_rm_r; 612 __u32 cm_filter_w; 613 __u32 cm_filter_r; 614 __u32 cm_connection_w; 615 __u32 cm_connection_r; 616 __u32 ulp_filter_w; 617 __u32 ulp_filter_r; 618 __u32 ulp_connection_w; 619 __u32 ulp_connection_r; 620 }; 621 622 struct qeth_seqno { 623 __u32 trans_hdr; 624 __u32 pdu_hdr; 625 __u32 pdu_hdr_ack; 626 __u16 ipa; 627 }; 628 629 struct qeth_reply { 630 struct list_head list; 631 struct completion received; 632 int (*callback)(struct qeth_card *, struct qeth_reply *, 633 unsigned long); 634 u32 seqno; 635 unsigned long offset; 636 int rc; 637 void *param; 638 refcount_t refcnt; 639 }; 640 641 struct qeth_card_blkt { 642 int time_total; 643 int inter_packet; 644 int inter_packet_jumbo; 645 }; 646 647 #define QETH_BROADCAST_WITH_ECHO 0x01 648 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 649 #define QETH_LAYER2_MAC_REGISTERED 0x02 650 struct qeth_card_info { 651 unsigned short unit_addr2; 652 unsigned short cula; 653 unsigned short chpid; 654 __u16 func_level; 655 char mcl_level[QETH_MCL_LENGTH + 1]; 656 u8 open_when_online:1; 657 u8 use_v1_blkt:1; 658 u8 is_vm_nic:1; 659 int mac_bits; 660 enum qeth_card_types type; 661 enum qeth_link_types link_type; 662 int broadcast_capable; 663 int unique_id; 664 bool layer_enforced; 665 struct qeth_card_blkt blkt; 666 enum qeth_ipa_promisc_modes promisc_mode; 667 __u32 diagass_support; 668 __u32 hwtrap; 669 }; 670 671 enum qeth_discipline_id { 672 QETH_DISCIPLINE_UNDETERMINED = -1, 673 QETH_DISCIPLINE_LAYER3 = 0, 674 QETH_DISCIPLINE_LAYER2 = 1, 675 }; 676 677 struct qeth_card_options { 678 struct qeth_routing_info route4; 679 struct qeth_ipa_info ipa4; 680 struct qeth_ipa_info adp; /*Adapter parameters*/ 681 struct qeth_routing_info route6; 682 struct qeth_ipa_info ipa6; 683 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 684 struct qeth_vnicc_info vnicc; /* VNICC options */ 685 int fake_broadcast; 686 enum qeth_discipline_id layer; 687 int rx_sg_cb; 688 enum qeth_ipa_isolation_modes isolation; 689 enum qeth_ipa_isolation_modes prev_isolation; 690 int sniffer; 691 enum qeth_cq cq; 692 char hsuid[9]; 693 }; 694 695 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 696 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 697 698 /* 699 * thread bits for qeth_card thread masks 700 */ 701 enum qeth_threads { 702 QETH_RECOVER_THREAD = 1, 703 }; 704 705 struct qeth_osn_info { 706 int (*assist_cb)(struct net_device *dev, void *data); 707 int (*data_cb)(struct sk_buff *skb); 708 }; 709 710 struct qeth_discipline { 711 const struct device_type *devtype; 712 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 713 int (*recover)(void *ptr); 714 int (*setup) (struct ccwgroup_device *); 715 void (*remove) (struct ccwgroup_device *); 716 int (*set_online) (struct ccwgroup_device *); 717 int (*set_offline) (struct ccwgroup_device *); 718 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 719 int (*control_event_handler)(struct qeth_card *card, 720 struct qeth_ipa_cmd *cmd); 721 }; 722 723 enum qeth_addr_disposition { 724 QETH_DISP_ADDR_DELETE = 0, 725 QETH_DISP_ADDR_DO_NOTHING = 1, 726 QETH_DISP_ADDR_ADD = 2, 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 struct carrier_info { 738 __u8 card_type; 739 __u16 port_mode; 740 __u32 port_speed; 741 }; 742 743 struct qeth_switch_info { 744 __u32 capabilities; 745 __u32 settings; 746 }; 747 748 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 749 750 struct qeth_card { 751 enum qeth_card_states state; 752 spinlock_t lock; 753 struct ccwgroup_device *gdev; 754 struct qeth_cmd_buffer *read_cmd; 755 struct qeth_channel read; 756 struct qeth_channel write; 757 struct qeth_channel data; 758 759 struct net_device *dev; 760 struct qeth_card_stats stats; 761 struct qeth_card_info info; 762 struct qeth_token token; 763 struct qeth_seqno seqno; 764 struct qeth_card_options options; 765 766 struct workqueue_struct *event_wq; 767 struct workqueue_struct *cmd_wq; 768 wait_queue_head_t wait_q; 769 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 770 DECLARE_HASHTABLE(mac_htable, 4); 771 DECLARE_HASHTABLE(ip_htable, 4); 772 struct mutex ip_lock; 773 DECLARE_HASHTABLE(ip_mc_htable, 4); 774 struct work_struct rx_mode_work; 775 struct work_struct kernel_thread_starter; 776 spinlock_t thread_mask_lock; 777 unsigned long thread_start_mask; 778 unsigned long thread_allowed_mask; 779 unsigned long thread_running_mask; 780 struct qeth_ipato ipato; 781 struct list_head cmd_waiter_list; 782 /* QDIO buffer handling */ 783 struct qeth_qdio_info qdio; 784 int read_or_write_problem; 785 struct qeth_osn_info osn_info; 786 struct qeth_discipline *discipline; 787 atomic_t force_alloc_skb; 788 struct service_level qeth_service_level; 789 struct qdio_ssqd_desc ssqd; 790 debug_info_t *debug; 791 struct mutex conf_mutex; 792 struct mutex discipline_mutex; 793 struct napi_struct napi; 794 struct qeth_rx rx; 795 struct delayed_work buffer_reclaim_work; 796 int reclaim_index; 797 struct work_struct close_dev_work; 798 }; 799 800 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card) 801 { 802 return card->state == CARD_STATE_SOFTSETUP; 803 } 804 805 struct qeth_trap_id { 806 __u16 lparnr; 807 char vmname[8]; 808 __u8 chpid; 809 __u8 ssid; 810 __u16 devno; 811 } __packed; 812 813 /*some helper functions*/ 814 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 815 816 static inline bool qeth_netdev_is_registered(struct net_device *dev) 817 { 818 return dev->netdev_ops != NULL; 819 } 820 821 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq) 822 { 823 if (txq == QETH_IQD_MCAST_TXQ) 824 return dev->num_tx_queues - 1; 825 if (txq == dev->num_tx_queues - 1) 826 return QETH_IQD_MCAST_TXQ; 827 return txq; 828 } 829 830 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 831 unsigned int elements) 832 { 833 unsigned int i; 834 835 for (i = 0; i < elements; i++) 836 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 837 buf->element[14].sflags = 0; 838 buf->element[15].sflags = 0; 839 } 840 841 /** 842 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 843 * @start: Start of the address range. 844 * @end: Address after the end of the range. 845 * 846 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 847 * the specified address range. 848 */ 849 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 850 { 851 return PFN_UP(end) - PFN_DOWN(start); 852 } 853 854 static inline int qeth_get_ip_version(struct sk_buff *skb) 855 { 856 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 857 __be16 prot = veth->h_vlan_proto; 858 859 if (prot == htons(ETH_P_8021Q)) 860 prot = veth->h_vlan_encapsulated_proto; 861 862 switch (prot) { 863 case htons(ETH_P_IPV6): 864 return 6; 865 case htons(ETH_P_IP): 866 return 4; 867 default: 868 return 0; 869 } 870 } 871 872 static inline int qeth_get_ether_cast_type(struct sk_buff *skb) 873 { 874 u8 *addr = eth_hdr(skb)->h_dest; 875 876 if (is_multicast_ether_addr(addr)) 877 return is_broadcast_ether_addr(addr) ? RTN_BROADCAST : 878 RTN_MULTICAST; 879 return RTN_UNICAST; 880 } 881 882 static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv) 883 { 884 struct dst_entry *dst = skb_dst(skb); 885 struct rt6_info *rt; 886 887 rt = (struct rt6_info *) dst; 888 if (dst) 889 dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0); 890 return dst; 891 } 892 893 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 894 u8 flags) 895 { 896 if ((card->dev->features & NETIF_F_RXCSUM) && 897 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 898 skb->ip_summed = CHECKSUM_UNNECESSARY; 899 QETH_CARD_STAT_INC(card, rx_skb_csum); 900 } else { 901 skb->ip_summed = CHECKSUM_NONE; 902 } 903 } 904 905 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 906 { 907 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 908 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 909 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 910 *flags |= QETH_HDR_EXT_UDP; 911 } 912 913 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 914 struct qeth_buffer_pool_entry *entry) 915 { 916 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 917 } 918 919 static inline int qeth_is_diagass_supported(struct qeth_card *card, 920 enum qeth_diags_cmds cmd) 921 { 922 return card->info.diagass_support & (__u32)cmd; 923 } 924 925 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 926 enum qeth_ipa_funcs ipa_func, 927 u16 cmd_code, u32 *data, 928 enum qeth_prot_versions prot); 929 /* IPv4 variant */ 930 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 931 enum qeth_ipa_funcs ipa_func, 932 u16 cmd_code, u32 *data) 933 { 934 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 935 data, QETH_PROT_IPV4); 936 } 937 938 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 939 enum qeth_ipa_funcs ipa_func, 940 u16 cmd_code, u32 *data) 941 { 942 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 943 data, QETH_PROT_IPV6); 944 } 945 946 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb); 947 948 extern struct qeth_discipline qeth_l2_discipline; 949 extern struct qeth_discipline qeth_l3_discipline; 950 extern const struct ethtool_ops qeth_ethtool_ops; 951 extern const struct ethtool_ops qeth_osn_ethtool_ops; 952 extern const struct attribute_group *qeth_generic_attr_groups[]; 953 extern const struct attribute_group *qeth_osn_attr_groups[]; 954 extern const struct attribute_group qeth_device_attr_group; 955 extern const struct attribute_group qeth_device_blkt_group; 956 extern const struct device_type qeth_generic_devtype; 957 958 const char *qeth_get_cardname_short(struct qeth_card *); 959 int qeth_realloc_buffer_pool(struct qeth_card *, int); 960 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 961 void qeth_core_free_discipline(struct qeth_card *); 962 963 /* exports for qeth discipline device drivers */ 964 extern struct kmem_cache *qeth_core_header_cache; 965 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 966 967 struct net_device *qeth_clone_netdev(struct net_device *orig); 968 struct qeth_card *qeth_get_card_by_busid(char *bus_id); 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_do_run_thread(struct qeth_card *, unsigned long); 972 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 973 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 974 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok); 975 void qeth_print_status_message(struct qeth_card *); 976 int qeth_init_qdio_queues(struct qeth_card *); 977 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 978 int (*reply_cb) 979 (struct qeth_card *, struct qeth_reply *, unsigned long), 980 void *); 981 struct qeth_cmd_buffer *qeth_ipa_alloc_cmd(struct qeth_card *card, 982 enum qeth_ipa_cmds cmd_code, 983 enum qeth_prot_versions prot, 984 unsigned int data_length); 985 struct qeth_cmd_buffer *qeth_alloc_cmd(struct qeth_channel *channel, 986 unsigned int length, unsigned int ccws, 987 long timeout); 988 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, 989 enum qeth_ipa_funcs ipa_func, 990 u16 cmd_code, 991 unsigned int data_length, 992 enum qeth_prot_versions prot); 993 struct qeth_cmd_buffer *qeth_get_diag_cmd(struct qeth_card *card, 994 enum qeth_diags_cmds sub_cmd, 995 unsigned int data_length); 996 void qeth_put_cmd(struct qeth_cmd_buffer *iob); 997 998 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 999 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 1000 struct qeth_hdr **); 1001 void qeth_schedule_recovery(struct qeth_card *); 1002 int qeth_poll(struct napi_struct *napi, int budget); 1003 void qeth_clear_ipacmd_list(struct qeth_card *); 1004 int qeth_qdio_clear_card(struct qeth_card *, int); 1005 void qeth_clear_working_pool_list(struct qeth_card *); 1006 void qeth_drain_output_queues(struct qeth_card *card); 1007 void qeth_setadp_promisc_mode(struct qeth_card *); 1008 int qeth_setadpparms_change_macaddr(struct qeth_card *); 1009 void qeth_tx_timeout(struct net_device *); 1010 void qeth_notify_reply(struct qeth_reply *reply, int reason); 1011 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 1012 u16 cmd_length); 1013 int qeth_query_switch_attributes(struct qeth_card *card, 1014 struct qeth_switch_info *sw_info); 1015 int qeth_query_card_info(struct qeth_card *card, 1016 struct carrier_info *carrier_info); 1017 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 1018 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1019 struct sk_buff *skb, struct qeth_hdr *hdr, 1020 unsigned int offset, unsigned int hd_len, 1021 int elements_needed); 1022 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1023 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1024 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1025 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1026 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1027 void qeth_trace_features(struct qeth_card *); 1028 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1029 int qeth_set_features(struct net_device *, netdev_features_t); 1030 void qeth_enable_hw_features(struct net_device *dev); 1031 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1032 netdev_features_t qeth_features_check(struct sk_buff *skb, 1033 struct net_device *dev, 1034 netdev_features_t features); 1035 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); 1036 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, 1037 u8 cast_type, struct net_device *sb_dev); 1038 int qeth_open(struct net_device *dev); 1039 int qeth_stop(struct net_device *dev); 1040 1041 int qeth_vm_request_mac(struct qeth_card *card); 1042 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1043 struct qeth_qdio_out_q *queue, int ipv, 1044 void (*fill_header)(struct qeth_qdio_out_q *queue, 1045 struct qeth_hdr *hdr, struct sk_buff *skb, 1046 int ipv, unsigned int data_len)); 1047 1048 /* exports for OSN */ 1049 int qeth_osn_assist(struct net_device *, void *, int); 1050 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1051 int (*assist_cb)(struct net_device *, void *), 1052 int (*data_cb)(struct sk_buff *)); 1053 void qeth_osn_deregister(struct net_device *); 1054 1055 #endif /* __QETH_CORE_H__ */ 1056