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; 107 108 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 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 qaob *aob; 469 struct qeth_qdio_out_q *q; 470 struct qeth_qdio_out_buffer *next_pending; 471 }; 472 473 struct qeth_card; 474 475 enum qeth_out_q_states { 476 QETH_OUT_Q_UNLOCKED, 477 QETH_OUT_Q_LOCKED, 478 QETH_OUT_Q_LOCKED_FLUSH, 479 }; 480 481 struct qeth_qdio_out_q { 482 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 483 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 484 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 485 int queue_no; 486 struct qeth_card *card; 487 atomic_t state; 488 int do_pack; 489 /* 490 * index of buffer to be filled by driver; state EMPTY or PACKING 491 */ 492 int next_buf_to_fill; 493 /* 494 * number of buffers that are currently filled (PRIMED) 495 * -> these buffers are hardware-owned 496 */ 497 atomic_t used_buffers; 498 /* indicates whether PCI flag must be set (or if one is outstanding) */ 499 atomic_t set_pci_flags_count; 500 }; 501 502 struct qeth_qdio_info { 503 atomic_t state; 504 /* input */ 505 int no_in_queues; 506 struct qeth_qdio_q *in_q; 507 struct qeth_qdio_q *c_q; 508 struct qeth_qdio_buffer_pool in_buf_pool; 509 struct qeth_qdio_buffer_pool init_pool; 510 int in_buf_size; 511 512 /* output */ 513 int no_out_queues; 514 struct qeth_qdio_out_q **out_qs; 515 struct qdio_outbuf_state *out_bufstates; 516 517 /* priority queueing */ 518 int do_prio_queueing; 519 int default_out_queue; 520 }; 521 522 /** 523 * buffer stuff for read channel 524 */ 525 #define QETH_CMD_BUFFER_NO 8 526 527 /** 528 * channel state machine 529 */ 530 enum qeth_channel_states { 531 CH_STATE_UP, 532 CH_STATE_DOWN, 533 CH_STATE_ACTIVATING, 534 CH_STATE_HALTED, 535 CH_STATE_STOPPED, 536 CH_STATE_RCD, 537 CH_STATE_RCD_DONE, 538 }; 539 /** 540 * card state machine 541 */ 542 enum qeth_card_states { 543 CARD_STATE_DOWN, 544 CARD_STATE_HARDSETUP, 545 CARD_STATE_SOFTSETUP, 546 CARD_STATE_UP, 547 CARD_STATE_RECOVER, 548 }; 549 550 /** 551 * Protocol versions 552 */ 553 enum qeth_prot_versions { 554 QETH_PROT_IPV4 = 0x0004, 555 QETH_PROT_IPV6 = 0x0006, 556 }; 557 558 enum qeth_cmd_buffer_state { 559 BUF_STATE_FREE, 560 BUF_STATE_LOCKED, 561 }; 562 563 enum qeth_cq { 564 QETH_CQ_DISABLED = 0, 565 QETH_CQ_ENABLED = 1, 566 QETH_CQ_NOTAVAILABLE = 2, 567 }; 568 569 struct qeth_ipato { 570 bool enabled; 571 bool invert4; 572 bool invert6; 573 struct list_head entries; 574 }; 575 576 struct qeth_channel; 577 578 struct qeth_cmd_buffer { 579 enum qeth_cmd_buffer_state state; 580 struct qeth_channel *channel; 581 unsigned char *data; 582 int rc; 583 void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); 584 }; 585 586 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 587 { 588 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 589 } 590 591 /** 592 * definition of a qeth channel, used for read and write 593 */ 594 struct qeth_channel { 595 enum qeth_channel_states state; 596 struct ccw1 ccw; 597 spinlock_t iob_lock; 598 wait_queue_head_t wait_q; 599 struct ccw_device *ccwdev; 600 /*command buffer for control data*/ 601 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 602 atomic_t irq_pending; 603 int io_buf_no; 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 __u32 pkt_seqno; 628 }; 629 630 struct qeth_reply { 631 struct list_head list; 632 wait_queue_head_t wait_q; 633 int (*callback)(struct qeth_card *, struct qeth_reply *, 634 unsigned long); 635 u32 seqno; 636 unsigned long offset; 637 atomic_t received; 638 int rc; 639 void *param; 640 struct qeth_card *card; 641 refcount_t refcnt; 642 }; 643 644 struct qeth_card_blkt { 645 int time_total; 646 int inter_packet; 647 int inter_packet_jumbo; 648 }; 649 650 #define QETH_BROADCAST_WITH_ECHO 0x01 651 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 652 #define QETH_LAYER2_MAC_READ 0x01 653 #define QETH_LAYER2_MAC_REGISTERED 0x02 654 struct qeth_card_info { 655 unsigned short unit_addr2; 656 unsigned short cula; 657 unsigned short chpid; 658 __u16 func_level; 659 char mcl_level[QETH_MCL_LENGTH + 1]; 660 int guestlan; 661 int mac_bits; 662 int portno; 663 enum qeth_card_types type; 664 enum qeth_link_types link_type; 665 int is_multicast_different; 666 int initial_mtu; 667 int max_mtu; 668 int broadcast_capable; 669 int unique_id; 670 bool layer_enforced; 671 struct qeth_card_blkt blkt; 672 enum qeth_ipa_promisc_modes promisc_mode; 673 __u32 diagass_support; 674 __u32 hwtrap; 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 int layer2; 687 int performance_stats; 688 int rx_sg_cb; 689 enum qeth_ipa_isolation_modes isolation; 690 enum qeth_ipa_isolation_modes prev_isolation; 691 int sniffer; 692 enum qeth_cq cq; 693 char hsuid[9]; 694 }; 695 696 /* 697 * thread bits for qeth_card thread masks 698 */ 699 enum qeth_threads { 700 QETH_RECOVER_THREAD = 1, 701 }; 702 703 struct qeth_osn_info { 704 int (*assist_cb)(struct net_device *dev, void *data); 705 int (*data_cb)(struct sk_buff *skb); 706 }; 707 708 enum qeth_discipline_id { 709 QETH_DISCIPLINE_UNDETERMINED = -1, 710 QETH_DISCIPLINE_LAYER3 = 0, 711 QETH_DISCIPLINE_LAYER2 = 1, 712 }; 713 714 struct qeth_discipline { 715 const struct device_type *devtype; 716 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 717 int (*recover)(void *ptr); 718 int (*setup) (struct ccwgroup_device *); 719 void (*remove) (struct ccwgroup_device *); 720 int (*set_online) (struct ccwgroup_device *); 721 int (*set_offline) (struct ccwgroup_device *); 722 int (*freeze)(struct ccwgroup_device *); 723 int (*thaw) (struct ccwgroup_device *); 724 int (*restore)(struct ccwgroup_device *); 725 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 726 int (*control_event_handler)(struct qeth_card *card, 727 struct qeth_ipa_cmd *cmd); 728 }; 729 730 struct qeth_vlan_vid { 731 struct list_head list; 732 unsigned short vid; 733 }; 734 735 enum qeth_addr_disposition { 736 QETH_DISP_ADDR_DELETE = 0, 737 QETH_DISP_ADDR_DO_NOTHING = 1, 738 QETH_DISP_ADDR_ADD = 2, 739 }; 740 741 struct qeth_rx { 742 int b_count; 743 int b_index; 744 struct qdio_buffer_element *b_element; 745 int e_offset; 746 int qdio_err; 747 }; 748 749 struct carrier_info { 750 __u8 card_type; 751 __u16 port_mode; 752 __u32 port_speed; 753 }; 754 755 struct qeth_switch_info { 756 __u32 capabilities; 757 __u32 settings; 758 }; 759 760 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 761 762 struct qeth_card { 763 struct list_head list; 764 enum qeth_card_states state; 765 int lan_online; 766 spinlock_t lock; 767 struct ccwgroup_device *gdev; 768 struct qeth_channel read; 769 struct qeth_channel write; 770 struct qeth_channel data; 771 772 struct net_device *dev; 773 struct net_device_stats stats; 774 775 struct qeth_card_info info; 776 struct qeth_token token; 777 struct qeth_seqno seqno; 778 struct qeth_card_options options; 779 780 wait_queue_head_t wait_q; 781 spinlock_t mclock; 782 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 783 struct mutex vid_list_mutex; /* vid_list */ 784 struct list_head vid_list; 785 DECLARE_HASHTABLE(mac_htable, 4); 786 DECLARE_HASHTABLE(ip_htable, 4); 787 DECLARE_HASHTABLE(ip_mc_htable, 4); 788 struct work_struct kernel_thread_starter; 789 spinlock_t thread_mask_lock; 790 unsigned long thread_start_mask; 791 unsigned long thread_allowed_mask; 792 unsigned long thread_running_mask; 793 struct task_struct *recovery_task; 794 spinlock_t ip_lock; 795 struct qeth_ipato ipato; 796 struct list_head cmd_waiter_list; 797 /* QDIO buffer handling */ 798 struct qeth_qdio_info qdio; 799 struct qeth_perf_stats perf_stats; 800 int read_or_write_problem; 801 struct qeth_osn_info osn_info; 802 struct qeth_discipline *discipline; 803 atomic_t force_alloc_skb; 804 struct service_level qeth_service_level; 805 struct qdio_ssqd_desc ssqd; 806 debug_info_t *debug; 807 struct mutex conf_mutex; 808 struct mutex discipline_mutex; 809 struct napi_struct napi; 810 struct qeth_rx rx; 811 struct delayed_work buffer_reclaim_work; 812 int reclaim_index; 813 struct work_struct close_dev_work; 814 }; 815 816 struct qeth_card_list_struct { 817 struct list_head list; 818 rwlock_t rwlock; 819 }; 820 821 struct qeth_trap_id { 822 __u16 lparnr; 823 char vmname[8]; 824 __u8 chpid; 825 __u8 ssid; 826 __u16 devno; 827 } __packed; 828 829 /*some helper functions*/ 830 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 831 832 /** 833 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 834 * @start: Start of the address range. 835 * @end: Address after the end of the range. 836 * 837 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 838 * the specified address range. 839 */ 840 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 841 { 842 return PFN_UP(end) - PFN_DOWN(start); 843 } 844 845 static inline int qeth_get_micros(void) 846 { 847 return (int) (get_tod_clock() >> 12); 848 } 849 850 static inline int qeth_get_ip_version(struct sk_buff *skb) 851 { 852 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 853 __be16 prot = veth->h_vlan_proto; 854 855 if (prot == htons(ETH_P_8021Q)) 856 prot = veth->h_vlan_encapsulated_proto; 857 858 switch (prot) { 859 case htons(ETH_P_IPV6): 860 return 6; 861 case htons(ETH_P_IP): 862 return 4; 863 default: 864 return 0; 865 } 866 } 867 868 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 869 u8 flags) 870 { 871 if ((card->dev->features & NETIF_F_RXCSUM) && 872 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 873 skb->ip_summed = CHECKSUM_UNNECESSARY; 874 if (card->options.performance_stats) 875 card->perf_stats.rx_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 if (ipv == 4) { 888 /* some HW requires combined L3+L4 csum offload: */ 889 *flags |= QETH_HDR_EXT_CSUM_HDR_REQ; 890 ip_hdr(skb)->check = 0; 891 } 892 } 893 894 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 895 struct qeth_buffer_pool_entry *entry) 896 { 897 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 898 } 899 900 static inline int qeth_is_diagass_supported(struct qeth_card *card, 901 enum qeth_diags_cmds cmd) 902 { 903 return card->info.diagass_support & (__u32)cmd; 904 } 905 906 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 907 enum qeth_ipa_funcs ipa_func, 908 u16 cmd_code, long data, 909 enum qeth_prot_versions prot); 910 /* IPv4 variant */ 911 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 912 enum qeth_ipa_funcs ipa_func, 913 u16 cmd_code, long data) 914 { 915 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 916 data, QETH_PROT_IPV4); 917 } 918 919 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 920 enum qeth_ipa_funcs ipa_func, 921 u16 cmd_code, long data) 922 { 923 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 924 data, QETH_PROT_IPV6); 925 } 926 927 extern struct qeth_discipline qeth_l2_discipline; 928 extern struct qeth_discipline qeth_l3_discipline; 929 extern const struct attribute_group *qeth_generic_attr_groups[]; 930 extern const struct attribute_group *qeth_osn_attr_groups[]; 931 extern const struct attribute_group qeth_device_attr_group; 932 extern const struct attribute_group qeth_device_blkt_group; 933 extern const struct device_type qeth_generic_devtype; 934 extern struct workqueue_struct *qeth_wq; 935 936 int qeth_card_hw_is_reachable(struct qeth_card *); 937 const char *qeth_get_cardname_short(struct qeth_card *); 938 int qeth_realloc_buffer_pool(struct qeth_card *, int); 939 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 940 void qeth_core_free_discipline(struct qeth_card *); 941 942 /* exports for qeth discipline device drivers */ 943 extern struct qeth_card_list_struct qeth_core_card_list; 944 extern struct kmem_cache *qeth_core_header_cache; 945 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 946 947 void qeth_set_recovery_task(struct qeth_card *); 948 void qeth_clear_recovery_task(struct qeth_card *); 949 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 950 int qeth_threads_running(struct qeth_card *, unsigned long); 951 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 952 int qeth_do_run_thread(struct qeth_card *, unsigned long); 953 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 954 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 955 int qeth_core_hardsetup_card(struct qeth_card *); 956 void qeth_print_status_message(struct qeth_card *); 957 int qeth_init_qdio_queues(struct qeth_card *); 958 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 959 int (*reply_cb) 960 (struct qeth_card *, struct qeth_reply *, unsigned long), 961 void *); 962 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 963 enum qeth_ipa_cmds, enum qeth_prot_versions); 964 int qeth_query_setadapterparms(struct qeth_card *); 965 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 966 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 967 struct qeth_hdr **); 968 void qeth_schedule_recovery(struct qeth_card *); 969 int qeth_poll(struct napi_struct *napi, int budget); 970 void qeth_clear_ipacmd_list(struct qeth_card *); 971 int qeth_qdio_clear_card(struct qeth_card *, int); 972 void qeth_clear_working_pool_list(struct qeth_card *); 973 void qeth_clear_cmd_buffers(struct qeth_channel *); 974 void qeth_clear_qdio_buffers(struct qeth_card *); 975 void qeth_setadp_promisc_mode(struct qeth_card *); 976 struct net_device_stats *qeth_get_stats(struct net_device *); 977 int qeth_change_mtu(struct net_device *, int); 978 int qeth_setadpparms_change_macaddr(struct qeth_card *); 979 void qeth_tx_timeout(struct net_device *); 980 void qeth_prepare_control_data(struct qeth_card *, int, 981 struct qeth_cmd_buffer *); 982 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 983 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); 984 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 985 int qeth_query_switch_attributes(struct qeth_card *card, 986 struct qeth_switch_info *sw_info); 987 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 988 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 989 void *reply_param); 990 int qeth_bridgeport_query_ports(struct qeth_card *card, 991 enum qeth_sbp_roles *role, enum qeth_sbp_states *state); 992 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role); 993 int qeth_bridgeport_an_set(struct qeth_card *card, int enable); 994 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); 995 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb, 996 int extra_elems, int data_offset); 997 int qeth_get_elements_for_frags(struct sk_buff *); 998 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, 999 struct qeth_hdr *hdr, unsigned int offset, 1000 unsigned int hd_len); 1001 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1002 struct sk_buff *skb, struct qeth_hdr *hdr, 1003 unsigned int offset, unsigned int hd_len, 1004 int elements_needed); 1005 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1006 int qeth_core_get_sset_count(struct net_device *, int); 1007 void qeth_core_get_ethtool_stats(struct net_device *, 1008 struct ethtool_stats *, u64 *); 1009 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1010 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1011 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1012 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1013 struct ethtool_link_ksettings *cmd); 1014 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1015 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int); 1016 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1017 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1018 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot); 1019 void qeth_trace_features(struct qeth_card *); 1020 void qeth_close_dev(struct qeth_card *); 1021 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16, 1022 long, 1023 int (*reply_cb)(struct qeth_card *, 1024 struct qeth_reply *, unsigned long), 1025 void *); 1026 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1027 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1028 enum qeth_ipa_funcs, 1029 __u16, __u16, 1030 enum qeth_prot_versions); 1031 int qeth_set_features(struct net_device *, netdev_features_t); 1032 void qeth_recover_features(struct net_device *dev); 1033 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1034 netdev_features_t qeth_features_check(struct sk_buff *skb, 1035 struct net_device *dev, 1036 netdev_features_t features); 1037 int qeth_vm_request_mac(struct qeth_card *card); 1038 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len); 1039 1040 /* exports for OSN */ 1041 int qeth_osn_assist(struct net_device *, void *, int); 1042 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1043 int (*assist_cb)(struct net_device *, void *), 1044 int (*data_cb)(struct sk_buff *)); 1045 void qeth_osn_deregister(struct net_device *); 1046 1047 #endif /* __QETH_CORE_H__ */ 1048