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/hashtable.h> 22 #include <linux/ip.h> 23 #include <linux/refcount.h> 24 #include <linux/workqueue.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 <uapi/linux/if_link.h> 38 39 #include "qeth_core_mpc.h" 40 41 /** 42 * Debug Facility stuff 43 */ 44 enum qeth_dbf_names { 45 QETH_DBF_SETUP, 46 QETH_DBF_MSG, 47 QETH_DBF_CTRL, 48 QETH_DBF_INFOS /* must be last element */ 49 }; 50 51 struct qeth_dbf_info { 52 char name[DEBUG_MAX_NAME_LEN]; 53 int pages; 54 int areas; 55 int len; 56 int level; 57 struct debug_view *view; 58 debug_info_t *id; 59 }; 60 61 #define QETH_DBF_CTRL_LEN 256 62 63 #define QETH_DBF_TEXT(name, level, text) \ 64 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 65 66 #define QETH_DBF_HEX(name, level, addr, len) \ 67 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 68 69 #define QETH_DBF_MESSAGE(level, text...) \ 70 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 71 72 #define QETH_DBF_TEXT_(name, level, text...) \ 73 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 74 75 #define QETH_CARD_TEXT(card, level, text) \ 76 debug_text_event(card->debug, level, text) 77 78 #define QETH_CARD_HEX(card, level, addr, len) \ 79 debug_event(card->debug, level, (void *)(addr), len) 80 81 #define QETH_CARD_MESSAGE(card, text...) \ 82 debug_sprintf_event(card->debug, level, text) 83 84 #define QETH_CARD_TEXT_(card, level, text...) \ 85 qeth_dbf_longtext(card->debug, level, text) 86 87 #define SENSE_COMMAND_REJECT_BYTE 0 88 #define SENSE_COMMAND_REJECT_FLAG 0x80 89 #define SENSE_RESETTING_EVENT_BYTE 1 90 #define SENSE_RESETTING_EVENT_FLAG 0x80 91 92 static inline u32 qeth_get_device_id(struct ccw_device *cdev) 93 { 94 struct ccw_dev_id dev_id; 95 u32 id; 96 97 ccw_device_get_id(cdev, &dev_id); 98 id = dev_id.devno; 99 id |= (u32) (dev_id.ssid << 16); 100 101 return id; 102 } 103 104 /* 105 * Common IO related definitions 106 */ 107 #define CARD_RDEV(card) card->read.ccwdev 108 #define CARD_WDEV(card) card->write.ccwdev 109 #define CARD_DDEV(card) card->data.ccwdev 110 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 111 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 112 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 113 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 114 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev)) 115 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card))) 116 117 /* Routing stuff */ 118 struct qeth_routing_info { 119 enum qeth_routing_types type; 120 }; 121 122 /* IPA stuff */ 123 struct qeth_ipa_info { 124 __u32 supported_funcs; 125 __u32 enabled_funcs; 126 }; 127 128 /* SETBRIDGEPORT stuff */ 129 enum qeth_sbp_roles { 130 QETH_SBP_ROLE_NONE = 0, 131 QETH_SBP_ROLE_PRIMARY = 1, 132 QETH_SBP_ROLE_SECONDARY = 2, 133 }; 134 135 enum qeth_sbp_states { 136 QETH_SBP_STATE_INACTIVE = 0, 137 QETH_SBP_STATE_STANDBY = 1, 138 QETH_SBP_STATE_ACTIVE = 2, 139 }; 140 141 #define QETH_SBP_HOST_NOTIFICATION 1 142 143 struct qeth_sbp_info { 144 __u32 supported_funcs; 145 enum qeth_sbp_roles role; 146 __u32 hostnotification:1; 147 __u32 reflect_promisc:1; 148 __u32 reflect_promisc_primary:1; 149 }; 150 151 struct qeth_vnicc_info { 152 /* supported/currently configured VNICCs; updated in IPA exchanges */ 153 u32 sup_chars; 154 u32 cur_chars; 155 /* supported commands: bitmasks which VNICCs support respective cmd */ 156 u32 set_char_sup; 157 u32 getset_timeout_sup; 158 /* timeout value for the learning characteristic */ 159 u32 learning_timeout; 160 /* characteristics wanted/configured by user */ 161 u32 wanted_chars; 162 /* has user explicitly enabled rx_bcast while online? */ 163 bool rx_bcast_enabled; 164 }; 165 166 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 167 enum qeth_ipa_funcs func) 168 { 169 return (ipa->supported_funcs & func); 170 } 171 172 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 173 enum qeth_ipa_funcs func) 174 { 175 return (ipa->supported_funcs & ipa->enabled_funcs & func); 176 } 177 178 #define qeth_adp_supported(c, f) \ 179 qeth_is_ipa_supported(&c->options.adp, f) 180 #define qeth_adp_enabled(c, f) \ 181 qeth_is_ipa_enabled(&c->options.adp, f) 182 #define qeth_is_supported(c, f) \ 183 qeth_is_ipa_supported(&c->options.ipa4, f) 184 #define qeth_is_enabled(c, f) \ 185 qeth_is_ipa_enabled(&c->options.ipa4, f) 186 #define qeth_is_supported6(c, f) \ 187 qeth_is_ipa_supported(&c->options.ipa6, f) 188 #define qeth_is_enabled6(c, f) \ 189 qeth_is_ipa_enabled(&c->options.ipa6, f) 190 #define qeth_is_ipafunc_supported(c, prot, f) \ 191 ((prot == QETH_PROT_IPV6) ? \ 192 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 193 #define qeth_is_ipafunc_enabled(c, prot, f) \ 194 ((prot == QETH_PROT_IPV6) ? \ 195 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 196 197 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 198 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 199 200 #define QETH_BUFSIZE 4096 201 #define CCW_CMD_WRITE 0x01 202 #define CCW_CMD_READ 0x02 203 204 /** 205 * some more defs 206 */ 207 #define QETH_TX_TIMEOUT 100 * HZ 208 #define QETH_RCD_TIMEOUT 60 * HZ 209 #define QETH_RECLAIM_WORK_TIME HZ 210 #define QETH_MAX_PORTNO 15 211 212 /*IPv6 address autoconfiguration stuff*/ 213 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 214 #define UNIQUE_ID_NOT_BY_CARD 0x10000 215 216 /*****************************************************************************/ 217 /* QDIO queue and buffer handling */ 218 /*****************************************************************************/ 219 #define QETH_MAX_QUEUES 4 220 #define QETH_IN_BUF_SIZE_DEFAULT 65536 221 #define QETH_IN_BUF_COUNT_DEFAULT 64 222 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 223 #define QETH_IN_BUF_COUNT_MIN 8 224 #define QETH_IN_BUF_COUNT_MAX 128 225 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 226 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 227 ((card)->qdio.in_buf_pool.buf_count / 2) 228 229 /* buffers we have to be behind before we get a PCI */ 230 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 231 /*enqueued free buffers left before we get a PCI*/ 232 #define QETH_PCI_THRESHOLD_B(card) 0 233 /*not used unless the microcode gets patched*/ 234 #define QETH_PCI_TIMER_VALUE(card) 3 235 236 /* priority queing */ 237 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 238 #define QETH_DEFAULT_QUEUE 2 239 #define QETH_NO_PRIO_QUEUEING 0 240 #define QETH_PRIO_Q_ING_PREC 1 241 #define QETH_PRIO_Q_ING_TOS 2 242 #define QETH_PRIO_Q_ING_SKB 3 243 #define QETH_PRIO_Q_ING_VLAN 4 244 245 /* Packing */ 246 #define QETH_LOW_WATERMARK_PACK 2 247 #define QETH_HIGH_WATERMARK_PACK 5 248 #define QETH_WATERMARK_PACK_FUZZ 1 249 250 /* large receive scatter gather copy break */ 251 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 252 #define QETH_RX_PULL_LEN 256 253 254 struct qeth_hdr_layer3 { 255 __u8 id; 256 __u8 flags; 257 __u16 inbound_checksum; /*TSO:__u16 seqno */ 258 __u32 token; /*TSO: __u32 reserved */ 259 __u16 length; 260 __u8 vlan_prio; 261 __u8 ext_flags; 262 __u16 vlan_id; 263 __u16 frame_offset; 264 union { 265 /* TX: */ 266 struct in6_addr ipv6_addr; 267 struct ipv4 { 268 u8 res[12]; 269 u32 addr; 270 } ipv4; 271 /* RX: */ 272 struct rx { 273 u8 res1[2]; 274 u8 src_mac[6]; 275 u8 res2[4]; 276 u16 vlan_id; 277 u8 res3[2]; 278 } rx; 279 } next_hop; 280 }; 281 282 struct qeth_hdr_layer2 { 283 __u8 id; 284 __u8 flags[3]; 285 __u8 port_no; 286 __u8 hdr_length; 287 __u16 pkt_length; 288 __u16 seq_no; 289 __u16 vlan_id; 290 __u32 reserved; 291 __u8 reserved2[16]; 292 } __attribute__ ((packed)); 293 294 struct qeth_hdr_osn { 295 __u8 id; 296 __u8 reserved; 297 __u16 seq_no; 298 __u16 reserved2; 299 __u16 control_flags; 300 __u16 pdu_length; 301 __u8 reserved3[18]; 302 __u32 ccid; 303 } __attribute__ ((packed)); 304 305 struct qeth_hdr { 306 union { 307 struct qeth_hdr_layer2 l2; 308 struct qeth_hdr_layer3 l3; 309 struct qeth_hdr_osn osn; 310 } hdr; 311 } __attribute__ ((packed)); 312 313 /*TCP Segmentation Offload header*/ 314 struct qeth_hdr_ext_tso { 315 __u16 hdr_tot_len; 316 __u8 imb_hdr_no; 317 __u8 reserved; 318 __u8 hdr_type; 319 __u8 hdr_version; 320 __u16 hdr_len; 321 __u32 payload_len; 322 __u16 mss; 323 __u16 dg_hdr_len; 324 __u8 padding[16]; 325 } __attribute__ ((packed)); 326 327 struct qeth_hdr_tso { 328 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 329 struct qeth_hdr_ext_tso ext; 330 } __attribute__ ((packed)); 331 332 333 /* flags for qeth_hdr.flags */ 334 #define QETH_HDR_PASSTHRU 0x10 335 #define QETH_HDR_IPV6 0x80 336 #define QETH_HDR_CAST_MASK 0x07 337 enum qeth_cast_flags { 338 QETH_CAST_UNICAST = 0x06, 339 QETH_CAST_MULTICAST = 0x04, 340 QETH_CAST_BROADCAST = 0x05, 341 QETH_CAST_ANYCAST = 0x07, 342 QETH_CAST_NOCAST = 0x00, 343 }; 344 345 enum qeth_layer2_frame_flags { 346 QETH_LAYER2_FLAG_MULTICAST = 0x01, 347 QETH_LAYER2_FLAG_BROADCAST = 0x02, 348 QETH_LAYER2_FLAG_UNICAST = 0x04, 349 QETH_LAYER2_FLAG_VLAN = 0x10, 350 }; 351 352 enum qeth_header_ids { 353 QETH_HEADER_TYPE_LAYER3 = 0x01, 354 QETH_HEADER_TYPE_LAYER2 = 0x02, 355 QETH_HEADER_TYPE_L3_TSO = 0x03, 356 QETH_HEADER_TYPE_OSN = 0x04, 357 QETH_HEADER_TYPE_L2_TSO = 0x06, 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 enum qeth_qdio_buffer_states { 369 /* 370 * inbound: read out by driver; owned by hardware in order to be filled 371 * outbound: owned by driver in order to be filled 372 */ 373 QETH_QDIO_BUF_EMPTY, 374 /* 375 * inbound: filled by hardware; owned by driver in order to be read out 376 * outbound: filled by driver; owned by hardware in order to be sent 377 */ 378 QETH_QDIO_BUF_PRIMED, 379 /* 380 * inbound: not applicable 381 * outbound: identified to be pending in TPQ 382 */ 383 QETH_QDIO_BUF_PENDING, 384 /* 385 * inbound: not applicable 386 * outbound: found in completion queue 387 */ 388 QETH_QDIO_BUF_IN_CQ, 389 /* 390 * inbound: not applicable 391 * outbound: handled via transfer pending / completion queue 392 */ 393 QETH_QDIO_BUF_HANDLED_DELAYED, 394 }; 395 396 enum qeth_qdio_info_states { 397 QETH_QDIO_UNINITIALIZED, 398 QETH_QDIO_ALLOCATED, 399 QETH_QDIO_ESTABLISHED, 400 QETH_QDIO_CLEANING 401 }; 402 403 struct qeth_buffer_pool_entry { 404 struct list_head list; 405 struct list_head init_list; 406 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 407 }; 408 409 struct qeth_qdio_buffer_pool { 410 struct list_head entry_list; 411 int buf_count; 412 }; 413 414 struct qeth_qdio_buffer { 415 struct qdio_buffer *buffer; 416 /* the buffer pool entry currently associated to this buffer */ 417 struct qeth_buffer_pool_entry *pool_entry; 418 struct sk_buff *rx_skb; 419 }; 420 421 struct qeth_qdio_q { 422 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 423 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 424 int next_buf_to_init; 425 }; 426 427 struct qeth_qdio_out_buffer { 428 struct qdio_buffer *buffer; 429 atomic_t state; 430 int next_element_to_fill; 431 struct sk_buff_head skb_list; 432 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 433 434 struct qeth_qdio_out_q *q; 435 struct qeth_qdio_out_buffer *next_pending; 436 }; 437 438 struct qeth_card; 439 440 enum qeth_out_q_states { 441 QETH_OUT_Q_UNLOCKED, 442 QETH_OUT_Q_LOCKED, 443 QETH_OUT_Q_LOCKED_FLUSH, 444 }; 445 446 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val)) 447 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1) 448 449 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val)) 450 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1) 451 452 struct qeth_card_stats { 453 u64 rx_bufs; 454 u64 rx_skb_csum; 455 u64 rx_sg_skbs; 456 u64 rx_sg_frags; 457 u64 rx_sg_alloc_page; 458 459 /* rtnl_link_stats64 */ 460 u64 rx_packets; 461 u64 rx_bytes; 462 u64 rx_errors; 463 u64 rx_dropped; 464 u64 rx_multicast; 465 u64 tx_errors; 466 }; 467 468 struct qeth_out_q_stats { 469 u64 bufs; 470 u64 bufs_pack; 471 u64 buf_elements; 472 u64 skbs_pack; 473 u64 skbs_sg; 474 u64 skbs_csum; 475 u64 skbs_tso; 476 u64 skbs_linearized; 477 u64 skbs_linearized_fail; 478 u64 tso_bytes; 479 u64 packing_mode_switch; 480 481 /* rtnl_link_stats64 */ 482 u64 tx_packets; 483 u64 tx_bytes; 484 u64 tx_errors; 485 u64 tx_dropped; 486 u64 tx_carrier_errors; 487 }; 488 489 struct qeth_qdio_out_q { 490 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 491 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 492 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 493 struct qeth_out_q_stats stats; 494 int queue_no; 495 struct qeth_card *card; 496 atomic_t state; 497 int do_pack; 498 /* 499 * index of buffer to be filled by driver; state EMPTY or PACKING 500 */ 501 int next_buf_to_fill; 502 /* 503 * number of buffers that are currently filled (PRIMED) 504 * -> these buffers are hardware-owned 505 */ 506 atomic_t used_buffers; 507 /* indicates whether PCI flag must be set (or if one is outstanding) */ 508 atomic_t set_pci_flags_count; 509 }; 510 511 struct qeth_qdio_info { 512 atomic_t state; 513 /* input */ 514 int no_in_queues; 515 struct qeth_qdio_q *in_q; 516 struct qeth_qdio_q *c_q; 517 struct qeth_qdio_buffer_pool in_buf_pool; 518 struct qeth_qdio_buffer_pool init_pool; 519 int in_buf_size; 520 521 /* output */ 522 int no_out_queues; 523 struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES]; 524 struct qdio_outbuf_state *out_bufstates; 525 526 /* priority queueing */ 527 int do_prio_queueing; 528 int default_out_queue; 529 }; 530 531 /** 532 * buffer stuff for read channel 533 */ 534 #define QETH_CMD_BUFFER_NO 8 535 536 /** 537 * channel state machine 538 */ 539 enum qeth_channel_states { 540 CH_STATE_UP, 541 CH_STATE_DOWN, 542 CH_STATE_ACTIVATING, 543 CH_STATE_HALTED, 544 CH_STATE_STOPPED, 545 CH_STATE_RCD, 546 CH_STATE_RCD_DONE, 547 }; 548 /** 549 * card state machine 550 */ 551 enum qeth_card_states { 552 CARD_STATE_DOWN, 553 CARD_STATE_HARDSETUP, 554 CARD_STATE_SOFTSETUP, 555 CARD_STATE_UP, 556 CARD_STATE_RECOVER, 557 }; 558 559 /** 560 * Protocol versions 561 */ 562 enum qeth_prot_versions { 563 QETH_PROT_IPV4 = 0x0004, 564 QETH_PROT_IPV6 = 0x0006, 565 }; 566 567 enum qeth_cmd_buffer_state { 568 BUF_STATE_FREE, 569 BUF_STATE_LOCKED, 570 }; 571 572 enum qeth_cq { 573 QETH_CQ_DISABLED = 0, 574 QETH_CQ_ENABLED = 1, 575 QETH_CQ_NOTAVAILABLE = 2, 576 }; 577 578 struct qeth_ipato { 579 bool enabled; 580 bool invert4; 581 bool invert6; 582 struct list_head entries; 583 }; 584 585 struct qeth_channel; 586 587 struct qeth_cmd_buffer { 588 enum qeth_cmd_buffer_state state; 589 struct qeth_channel *channel; 590 struct qeth_reply *reply; 591 unsigned char *data; 592 void (*callback)(struct qeth_card *card, struct qeth_channel *channel, 593 struct qeth_cmd_buffer *iob); 594 }; 595 596 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 597 { 598 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 599 } 600 601 /** 602 * definition of a qeth channel, used for read and write 603 */ 604 struct qeth_channel { 605 enum qeth_channel_states state; 606 struct ccw1 *ccw; 607 spinlock_t iob_lock; 608 wait_queue_head_t wait_q; 609 struct ccw_device *ccwdev; 610 /*command buffer for control data*/ 611 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 612 atomic_t irq_pending; 613 int io_buf_no; 614 }; 615 616 /** 617 * OSA card related definitions 618 */ 619 struct qeth_token { 620 __u32 issuer_rm_w; 621 __u32 issuer_rm_r; 622 __u32 cm_filter_w; 623 __u32 cm_filter_r; 624 __u32 cm_connection_w; 625 __u32 cm_connection_r; 626 __u32 ulp_filter_w; 627 __u32 ulp_filter_r; 628 __u32 ulp_connection_w; 629 __u32 ulp_connection_r; 630 }; 631 632 struct qeth_seqno { 633 __u32 trans_hdr; 634 __u32 pdu_hdr; 635 __u32 pdu_hdr_ack; 636 __u16 ipa; 637 __u32 pkt_seqno; 638 }; 639 640 struct qeth_reply { 641 struct list_head list; 642 wait_queue_head_t wait_q; 643 int (*callback)(struct qeth_card *, struct qeth_reply *, 644 unsigned long); 645 u32 seqno; 646 unsigned long offset; 647 atomic_t received; 648 int rc; 649 void *param; 650 refcount_t refcnt; 651 }; 652 653 struct qeth_card_blkt { 654 int time_total; 655 int inter_packet; 656 int inter_packet_jumbo; 657 }; 658 659 #define QETH_BROADCAST_WITH_ECHO 0x01 660 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 661 #define QETH_LAYER2_MAC_REGISTERED 0x02 662 struct qeth_card_info { 663 unsigned short unit_addr2; 664 unsigned short cula; 665 unsigned short chpid; 666 __u16 func_level; 667 char mcl_level[QETH_MCL_LENGTH + 1]; 668 int guestlan; 669 int mac_bits; 670 enum qeth_card_types type; 671 enum qeth_link_types link_type; 672 int broadcast_capable; 673 int unique_id; 674 bool layer_enforced; 675 struct qeth_card_blkt blkt; 676 enum qeth_ipa_promisc_modes promisc_mode; 677 __u32 diagass_support; 678 __u32 hwtrap; 679 }; 680 681 enum qeth_discipline_id { 682 QETH_DISCIPLINE_UNDETERMINED = -1, 683 QETH_DISCIPLINE_LAYER3 = 0, 684 QETH_DISCIPLINE_LAYER2 = 1, 685 }; 686 687 struct qeth_card_options { 688 struct qeth_routing_info route4; 689 struct qeth_ipa_info ipa4; 690 struct qeth_ipa_info adp; /*Adapter parameters*/ 691 struct qeth_routing_info route6; 692 struct qeth_ipa_info ipa6; 693 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 694 struct qeth_vnicc_info vnicc; /* VNICC options */ 695 int fake_broadcast; 696 enum qeth_discipline_id layer; 697 int rx_sg_cb; 698 enum qeth_ipa_isolation_modes isolation; 699 enum qeth_ipa_isolation_modes prev_isolation; 700 int sniffer; 701 enum qeth_cq cq; 702 char hsuid[9]; 703 }; 704 705 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 706 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 707 708 /* 709 * thread bits for qeth_card thread masks 710 */ 711 enum qeth_threads { 712 QETH_RECOVER_THREAD = 1, 713 }; 714 715 struct qeth_osn_info { 716 int (*assist_cb)(struct net_device *dev, void *data); 717 int (*data_cb)(struct sk_buff *skb); 718 }; 719 720 struct qeth_discipline { 721 const struct device_type *devtype; 722 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 723 int (*recover)(void *ptr); 724 int (*setup) (struct ccwgroup_device *); 725 void (*remove) (struct ccwgroup_device *); 726 int (*set_online) (struct ccwgroup_device *); 727 int (*set_offline) (struct ccwgroup_device *); 728 int (*freeze)(struct ccwgroup_device *); 729 int (*thaw) (struct ccwgroup_device *); 730 int (*restore)(struct ccwgroup_device *); 731 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 732 int (*control_event_handler)(struct qeth_card *card, 733 struct qeth_ipa_cmd *cmd); 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 enum qeth_card_states state; 765 spinlock_t lock; 766 struct ccwgroup_device *gdev; 767 struct qeth_channel read; 768 struct qeth_channel write; 769 struct qeth_channel data; 770 771 struct net_device *dev; 772 struct qeth_card_stats stats; 773 struct qeth_card_info info; 774 struct qeth_token token; 775 struct qeth_seqno seqno; 776 struct qeth_card_options options; 777 778 struct workqueue_struct *event_wq; 779 wait_queue_head_t wait_q; 780 spinlock_t mclock; 781 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 782 DECLARE_HASHTABLE(mac_htable, 4); 783 DECLARE_HASHTABLE(ip_htable, 4); 784 DECLARE_HASHTABLE(ip_mc_htable, 4); 785 struct work_struct kernel_thread_starter; 786 spinlock_t thread_mask_lock; 787 unsigned long thread_start_mask; 788 unsigned long thread_allowed_mask; 789 unsigned long thread_running_mask; 790 spinlock_t ip_lock; 791 struct qeth_ipato ipato; 792 struct list_head cmd_waiter_list; 793 /* QDIO buffer handling */ 794 struct qeth_qdio_info qdio; 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_trap_id { 812 __u16 lparnr; 813 char vmname[8]; 814 __u8 chpid; 815 __u8 ssid; 816 __u16 devno; 817 } __packed; 818 819 /*some helper functions*/ 820 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 821 822 static inline bool qeth_netdev_is_registered(struct net_device *dev) 823 { 824 return dev->netdev_ops != NULL; 825 } 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_ip_version(struct sk_buff *skb) 852 { 853 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 854 __be16 prot = veth->h_vlan_proto; 855 856 if (prot == htons(ETH_P_8021Q)) 857 prot = veth->h_vlan_encapsulated_proto; 858 859 switch (prot) { 860 case htons(ETH_P_IPV6): 861 return 6; 862 case htons(ETH_P_IP): 863 return 4; 864 default: 865 return 0; 866 } 867 } 868 869 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 870 u8 flags) 871 { 872 if ((card->dev->features & NETIF_F_RXCSUM) && 873 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 874 skb->ip_summed = CHECKSUM_UNNECESSARY; 875 QETH_CARD_STAT_INC(card, rx_skb_csum); 876 } else { 877 skb->ip_summed = CHECKSUM_NONE; 878 } 879 } 880 881 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 882 { 883 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 884 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 885 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 886 *flags |= QETH_HDR_EXT_UDP; 887 } 888 889 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 890 struct qeth_buffer_pool_entry *entry) 891 { 892 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 893 } 894 895 static inline int qeth_is_diagass_supported(struct qeth_card *card, 896 enum qeth_diags_cmds cmd) 897 { 898 return card->info.diagass_support & (__u32)cmd; 899 } 900 901 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 902 enum qeth_ipa_funcs ipa_func, 903 u16 cmd_code, long data, 904 enum qeth_prot_versions prot); 905 /* IPv4 variant */ 906 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 907 enum qeth_ipa_funcs ipa_func, 908 u16 cmd_code, long data) 909 { 910 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 911 data, QETH_PROT_IPV4); 912 } 913 914 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 915 enum qeth_ipa_funcs ipa_func, 916 u16 cmd_code, long data) 917 { 918 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 919 data, QETH_PROT_IPV6); 920 } 921 922 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 923 int ipv); 924 static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card, 925 struct sk_buff *skb, 926 int ipv, int cast_type) 927 { 928 if (IS_IQD(card) && cast_type != RTN_UNICAST) 929 return card->qdio.out_qs[card->qdio.no_out_queues - 1]; 930 if (!card->qdio.do_prio_queueing) 931 return card->qdio.out_qs[card->qdio.default_out_queue]; 932 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)]; 933 } 934 935 extern struct qeth_discipline qeth_l2_discipline; 936 extern struct qeth_discipline qeth_l3_discipline; 937 extern const struct ethtool_ops qeth_ethtool_ops; 938 extern const struct ethtool_ops qeth_osn_ethtool_ops; 939 extern const struct attribute_group *qeth_generic_attr_groups[]; 940 extern const struct attribute_group *qeth_osn_attr_groups[]; 941 extern const struct attribute_group qeth_device_attr_group; 942 extern const struct attribute_group qeth_device_blkt_group; 943 extern const struct device_type qeth_generic_devtype; 944 945 int qeth_card_hw_is_reachable(struct qeth_card *); 946 const char *qeth_get_cardname_short(struct qeth_card *); 947 int qeth_realloc_buffer_pool(struct qeth_card *, int); 948 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 949 void qeth_core_free_discipline(struct qeth_card *); 950 951 /* exports for qeth discipline device drivers */ 952 extern struct kmem_cache *qeth_core_header_cache; 953 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 954 955 struct net_device *qeth_clone_netdev(struct net_device *orig); 956 struct qeth_card *qeth_get_card_by_busid(char *bus_id); 957 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 958 int qeth_threads_running(struct qeth_card *, unsigned long); 959 int qeth_do_run_thread(struct qeth_card *, unsigned long); 960 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 961 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 962 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok); 963 void qeth_print_status_message(struct qeth_card *); 964 int qeth_init_qdio_queues(struct qeth_card *); 965 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 966 int (*reply_cb) 967 (struct qeth_card *, struct qeth_reply *, unsigned long), 968 void *); 969 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 970 enum qeth_ipa_cmds, enum qeth_prot_versions); 971 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 972 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 973 struct qeth_hdr **); 974 void qeth_schedule_recovery(struct qeth_card *); 975 int qeth_poll(struct napi_struct *napi, int budget); 976 void qeth_clear_ipacmd_list(struct qeth_card *); 977 int qeth_qdio_clear_card(struct qeth_card *, int); 978 void qeth_clear_working_pool_list(struct qeth_card *); 979 void qeth_clear_cmd_buffers(struct qeth_channel *); 980 void qeth_clear_qdio_buffers(struct qeth_card *); 981 void qeth_setadp_promisc_mode(struct qeth_card *); 982 int qeth_setadpparms_change_macaddr(struct qeth_card *); 983 void qeth_tx_timeout(struct net_device *); 984 void qeth_prepare_control_data(struct qeth_card *, int, 985 struct qeth_cmd_buffer *); 986 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 987 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 988 u16 cmd_length); 989 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 990 int qeth_query_switch_attributes(struct qeth_card *card, 991 struct qeth_switch_info *sw_info); 992 int qeth_query_card_info(struct qeth_card *card, 993 struct carrier_info *carrier_info); 994 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 995 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 996 struct sk_buff *skb, struct qeth_hdr *hdr, 997 unsigned int offset, unsigned int hd_len, 998 int elements_needed); 999 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1000 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1001 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1002 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1003 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1004 void qeth_trace_features(struct qeth_card *); 1005 void qeth_close_dev(struct qeth_card *); 1006 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1007 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1008 enum qeth_ipa_funcs, 1009 __u16, __u16, 1010 enum qeth_prot_versions); 1011 int qeth_set_features(struct net_device *, netdev_features_t); 1012 void qeth_enable_hw_features(struct net_device *dev); 1013 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1014 netdev_features_t qeth_features_check(struct sk_buff *skb, 1015 struct net_device *dev, 1016 netdev_features_t features); 1017 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); 1018 int qeth_open(struct net_device *dev); 1019 int qeth_stop(struct net_device *dev); 1020 1021 int qeth_vm_request_mac(struct qeth_card *card); 1022 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1023 struct qeth_qdio_out_q *queue, int ipv, int cast_type, 1024 void (*fill_header)(struct qeth_qdio_out_q *queue, 1025 struct qeth_hdr *hdr, struct sk_buff *skb, 1026 int ipv, int cast_type, 1027 unsigned int data_len)); 1028 1029 /* exports for OSN */ 1030 int qeth_osn_assist(struct net_device *, void *, int); 1031 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1032 int (*assist_cb)(struct net_device *, void *), 1033 int (*data_cb)(struct sk_buff *)); 1034 void qeth_osn_deregister(struct net_device *); 1035 1036 #endif /* __QETH_CORE_H__ */ 1037