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 #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 "qeth_core_mpc.h" 38 39 /** 40 * Debug Facility stuff 41 */ 42 enum qeth_dbf_names { 43 QETH_DBF_SETUP, 44 QETH_DBF_MSG, 45 QETH_DBF_CTRL, 46 QETH_DBF_INFOS /* must be last element */ 47 }; 48 49 struct qeth_dbf_info { 50 char name[DEBUG_MAX_NAME_LEN]; 51 int pages; 52 int areas; 53 int len; 54 int level; 55 struct debug_view *view; 56 debug_info_t *id; 57 }; 58 59 #define QETH_DBF_CTRL_LEN 256 60 61 #define QETH_DBF_TEXT(name, level, text) \ 62 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 63 64 #define QETH_DBF_HEX(name, level, addr, len) \ 65 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 66 67 #define QETH_DBF_MESSAGE(level, text...) \ 68 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 69 70 #define QETH_DBF_TEXT_(name, level, text...) \ 71 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 72 73 #define QETH_CARD_TEXT(card, level, text) \ 74 debug_text_event(card->debug, level, text) 75 76 #define QETH_CARD_HEX(card, level, addr, len) \ 77 debug_event(card->debug, level, (void *)(addr), len) 78 79 #define QETH_CARD_MESSAGE(card, text...) \ 80 debug_sprintf_event(card->debug, level, text) 81 82 #define QETH_CARD_TEXT_(card, level, text...) \ 83 qeth_dbf_longtext(card->debug, level, text) 84 85 #define SENSE_COMMAND_REJECT_BYTE 0 86 #define SENSE_COMMAND_REJECT_FLAG 0x80 87 #define SENSE_RESETTING_EVENT_BYTE 1 88 #define SENSE_RESETTING_EVENT_FLAG 0x80 89 90 static inline u32 qeth_get_device_id(struct ccw_device *cdev) 91 { 92 struct ccw_dev_id dev_id; 93 u32 id; 94 95 ccw_device_get_id(cdev, &dev_id); 96 id = dev_id.devno; 97 id |= (u32) (dev_id.ssid << 16); 98 99 return id; 100 } 101 102 /* 103 * Common IO related definitions 104 */ 105 #define CARD_RDEV(card) card->read.ccwdev 106 #define CARD_WDEV(card) card->write.ccwdev 107 #define CARD_DDEV(card) card->data.ccwdev 108 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 109 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 110 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 111 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 112 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev)) 113 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card))) 114 115 /** 116 * card stuff 117 */ 118 struct qeth_perf_stats { 119 unsigned int bufs_rec; 120 unsigned int bufs_sent; 121 unsigned int buf_elements_sent; 122 123 unsigned int skbs_sent_pack; 124 unsigned int bufs_sent_pack; 125 126 unsigned int sc_dp_p; 127 unsigned int sc_p_dp; 128 /* qdio_cq_handler: number of times called, time spent in */ 129 __u64 cq_start_time; 130 unsigned int cq_cnt; 131 unsigned int cq_time; 132 /* qdio_input_handler: number of times called, time spent in */ 133 __u64 inbound_start_time; 134 unsigned int inbound_cnt; 135 unsigned int inbound_time; 136 /* qeth_send_packet: number of times called, time spent in */ 137 __u64 outbound_start_time; 138 unsigned int outbound_cnt; 139 unsigned int outbound_time; 140 /* qdio_output_handler: number of times called, time spent in */ 141 __u64 outbound_handler_start_time; 142 unsigned int outbound_handler_cnt; 143 unsigned int outbound_handler_time; 144 /* number of calls to and time spent in do_QDIO for inbound queue */ 145 __u64 inbound_do_qdio_start_time; 146 unsigned int inbound_do_qdio_cnt; 147 unsigned int inbound_do_qdio_time; 148 /* number of calls to and time spent in do_QDIO for outbound queues */ 149 __u64 outbound_do_qdio_start_time; 150 unsigned int outbound_do_qdio_cnt; 151 unsigned int outbound_do_qdio_time; 152 unsigned int large_send_bytes; 153 unsigned int large_send_cnt; 154 unsigned int sg_skbs_sent; 155 /* initial values when measuring starts */ 156 unsigned long initial_rx_packets; 157 unsigned long initial_tx_packets; 158 /* inbound scatter gather data */ 159 unsigned int sg_skbs_rx; 160 unsigned int sg_frags_rx; 161 unsigned int sg_alloc_page_rx; 162 unsigned int tx_csum; 163 unsigned int tx_lin; 164 unsigned int tx_linfail; 165 unsigned int rx_csum; 166 }; 167 168 /* Routing stuff */ 169 struct qeth_routing_info { 170 enum qeth_routing_types type; 171 }; 172 173 /* IPA stuff */ 174 struct qeth_ipa_info { 175 __u32 supported_funcs; 176 __u32 enabled_funcs; 177 }; 178 179 /* SETBRIDGEPORT stuff */ 180 enum qeth_sbp_roles { 181 QETH_SBP_ROLE_NONE = 0, 182 QETH_SBP_ROLE_PRIMARY = 1, 183 QETH_SBP_ROLE_SECONDARY = 2, 184 }; 185 186 enum qeth_sbp_states { 187 QETH_SBP_STATE_INACTIVE = 0, 188 QETH_SBP_STATE_STANDBY = 1, 189 QETH_SBP_STATE_ACTIVE = 2, 190 }; 191 192 #define QETH_SBP_HOST_NOTIFICATION 1 193 194 struct qeth_sbp_info { 195 __u32 supported_funcs; 196 enum qeth_sbp_roles role; 197 __u32 hostnotification:1; 198 __u32 reflect_promisc:1; 199 __u32 reflect_promisc_primary:1; 200 }; 201 202 struct qeth_vnicc_info { 203 /* supported/currently configured VNICCs; updated in IPA exchanges */ 204 u32 sup_chars; 205 u32 cur_chars; 206 /* supported commands: bitmasks which VNICCs support respective cmd */ 207 u32 set_char_sup; 208 u32 getset_timeout_sup; 209 /* timeout value for the learning characteristic */ 210 u32 learning_timeout; 211 /* characteristics wanted/configured by user */ 212 u32 wanted_chars; 213 /* has user explicitly enabled rx_bcast while online? */ 214 bool rx_bcast_enabled; 215 }; 216 217 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 218 enum qeth_ipa_funcs func) 219 { 220 return (ipa->supported_funcs & func); 221 } 222 223 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 224 enum qeth_ipa_funcs func) 225 { 226 return (ipa->supported_funcs & ipa->enabled_funcs & func); 227 } 228 229 #define qeth_adp_supported(c, f) \ 230 qeth_is_ipa_supported(&c->options.adp, f) 231 #define qeth_adp_enabled(c, f) \ 232 qeth_is_ipa_enabled(&c->options.adp, f) 233 #define qeth_is_supported(c, f) \ 234 qeth_is_ipa_supported(&c->options.ipa4, f) 235 #define qeth_is_enabled(c, f) \ 236 qeth_is_ipa_enabled(&c->options.ipa4, f) 237 #define qeth_is_supported6(c, f) \ 238 qeth_is_ipa_supported(&c->options.ipa6, f) 239 #define qeth_is_enabled6(c, f) \ 240 qeth_is_ipa_enabled(&c->options.ipa6, f) 241 #define qeth_is_ipafunc_supported(c, prot, f) \ 242 ((prot == QETH_PROT_IPV6) ? \ 243 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 244 #define qeth_is_ipafunc_enabled(c, prot, f) \ 245 ((prot == QETH_PROT_IPV6) ? \ 246 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 247 248 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 249 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 250 251 #define QETH_BUFSIZE 4096 252 #define CCW_CMD_WRITE 0x01 253 #define CCW_CMD_READ 0x02 254 255 /** 256 * some more defs 257 */ 258 #define QETH_TX_TIMEOUT 100 * HZ 259 #define QETH_RCD_TIMEOUT 60 * HZ 260 #define QETH_RECLAIM_WORK_TIME HZ 261 #define QETH_MAX_PORTNO 15 262 263 /*IPv6 address autoconfiguration stuff*/ 264 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 265 #define UNIQUE_ID_NOT_BY_CARD 0x10000 266 267 /*****************************************************************************/ 268 /* QDIO queue and buffer handling */ 269 /*****************************************************************************/ 270 #define QETH_MAX_QUEUES 4 271 #define QETH_IN_BUF_SIZE_DEFAULT 65536 272 #define QETH_IN_BUF_COUNT_DEFAULT 64 273 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 274 #define QETH_IN_BUF_COUNT_MIN 8 275 #define QETH_IN_BUF_COUNT_MAX 128 276 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 277 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 278 ((card)->qdio.in_buf_pool.buf_count / 2) 279 280 /* buffers we have to be behind before we get a PCI */ 281 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 282 /*enqueued free buffers left before we get a PCI*/ 283 #define QETH_PCI_THRESHOLD_B(card) 0 284 /*not used unless the microcode gets patched*/ 285 #define QETH_PCI_TIMER_VALUE(card) 3 286 287 /* priority queing */ 288 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 289 #define QETH_DEFAULT_QUEUE 2 290 #define QETH_NO_PRIO_QUEUEING 0 291 #define QETH_PRIO_Q_ING_PREC 1 292 #define QETH_PRIO_Q_ING_TOS 2 293 #define QETH_PRIO_Q_ING_SKB 3 294 #define QETH_PRIO_Q_ING_VLAN 4 295 296 /* Packing */ 297 #define QETH_LOW_WATERMARK_PACK 2 298 #define QETH_HIGH_WATERMARK_PACK 5 299 #define QETH_WATERMARK_PACK_FUZZ 1 300 301 /* large receive scatter gather copy break */ 302 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 303 #define QETH_RX_PULL_LEN 256 304 305 struct qeth_hdr_layer3 { 306 __u8 id; 307 __u8 flags; 308 __u16 inbound_checksum; /*TSO:__u16 seqno */ 309 __u32 token; /*TSO: __u32 reserved */ 310 __u16 length; 311 __u8 vlan_prio; 312 __u8 ext_flags; 313 __u16 vlan_id; 314 __u16 frame_offset; 315 union { 316 /* TX: */ 317 struct in6_addr ipv6_addr; 318 struct ipv4 { 319 u8 res[12]; 320 u32 addr; 321 } ipv4; 322 /* RX: */ 323 struct rx { 324 u8 res1[2]; 325 u8 src_mac[6]; 326 u8 res2[4]; 327 u16 vlan_id; 328 u8 res3[2]; 329 } rx; 330 } next_hop; 331 }; 332 333 struct qeth_hdr_layer2 { 334 __u8 id; 335 __u8 flags[3]; 336 __u8 port_no; 337 __u8 hdr_length; 338 __u16 pkt_length; 339 __u16 seq_no; 340 __u16 vlan_id; 341 __u32 reserved; 342 __u8 reserved2[16]; 343 } __attribute__ ((packed)); 344 345 struct qeth_hdr_osn { 346 __u8 id; 347 __u8 reserved; 348 __u16 seq_no; 349 __u16 reserved2; 350 __u16 control_flags; 351 __u16 pdu_length; 352 __u8 reserved3[18]; 353 __u32 ccid; 354 } __attribute__ ((packed)); 355 356 struct qeth_hdr { 357 union { 358 struct qeth_hdr_layer2 l2; 359 struct qeth_hdr_layer3 l3; 360 struct qeth_hdr_osn osn; 361 } hdr; 362 } __attribute__ ((packed)); 363 364 /*TCP Segmentation Offload header*/ 365 struct qeth_hdr_ext_tso { 366 __u16 hdr_tot_len; 367 __u8 imb_hdr_no; 368 __u8 reserved; 369 __u8 hdr_type; 370 __u8 hdr_version; 371 __u16 hdr_len; 372 __u32 payload_len; 373 __u16 mss; 374 __u16 dg_hdr_len; 375 __u8 padding[16]; 376 } __attribute__ ((packed)); 377 378 struct qeth_hdr_tso { 379 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 380 struct qeth_hdr_ext_tso ext; 381 } __attribute__ ((packed)); 382 383 384 /* flags for qeth_hdr.flags */ 385 #define QETH_HDR_PASSTHRU 0x10 386 #define QETH_HDR_IPV6 0x80 387 #define QETH_HDR_CAST_MASK 0x07 388 enum qeth_cast_flags { 389 QETH_CAST_UNICAST = 0x06, 390 QETH_CAST_MULTICAST = 0x04, 391 QETH_CAST_BROADCAST = 0x05, 392 QETH_CAST_ANYCAST = 0x07, 393 QETH_CAST_NOCAST = 0x00, 394 }; 395 396 enum qeth_layer2_frame_flags { 397 QETH_LAYER2_FLAG_MULTICAST = 0x01, 398 QETH_LAYER2_FLAG_BROADCAST = 0x02, 399 QETH_LAYER2_FLAG_UNICAST = 0x04, 400 QETH_LAYER2_FLAG_VLAN = 0x10, 401 }; 402 403 enum qeth_header_ids { 404 QETH_HEADER_TYPE_LAYER3 = 0x01, 405 QETH_HEADER_TYPE_LAYER2 = 0x02, 406 QETH_HEADER_TYPE_L3_TSO = 0x03, 407 QETH_HEADER_TYPE_OSN = 0x04, 408 QETH_HEADER_TYPE_L2_TSO = 0x06, 409 }; 410 /* flags for qeth_hdr.ext_flags */ 411 #define QETH_HDR_EXT_VLAN_FRAME 0x01 412 #define QETH_HDR_EXT_TOKEN_ID 0x02 413 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 414 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 415 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 416 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 417 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 418 419 enum qeth_qdio_buffer_states { 420 /* 421 * inbound: read out by driver; owned by hardware in order to be filled 422 * outbound: owned by driver in order to be filled 423 */ 424 QETH_QDIO_BUF_EMPTY, 425 /* 426 * inbound: filled by hardware; owned by driver in order to be read out 427 * outbound: filled by driver; owned by hardware in order to be sent 428 */ 429 QETH_QDIO_BUF_PRIMED, 430 /* 431 * inbound: not applicable 432 * outbound: identified to be pending in TPQ 433 */ 434 QETH_QDIO_BUF_PENDING, 435 /* 436 * inbound: not applicable 437 * outbound: found in completion queue 438 */ 439 QETH_QDIO_BUF_IN_CQ, 440 /* 441 * inbound: not applicable 442 * outbound: handled via transfer pending / completion queue 443 */ 444 QETH_QDIO_BUF_HANDLED_DELAYED, 445 }; 446 447 enum qeth_qdio_info_states { 448 QETH_QDIO_UNINITIALIZED, 449 QETH_QDIO_ALLOCATED, 450 QETH_QDIO_ESTABLISHED, 451 QETH_QDIO_CLEANING 452 }; 453 454 struct qeth_buffer_pool_entry { 455 struct list_head list; 456 struct list_head init_list; 457 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 458 }; 459 460 struct qeth_qdio_buffer_pool { 461 struct list_head entry_list; 462 int buf_count; 463 }; 464 465 struct qeth_qdio_buffer { 466 struct qdio_buffer *buffer; 467 /* the buffer pool entry currently associated to this buffer */ 468 struct qeth_buffer_pool_entry *pool_entry; 469 struct sk_buff *rx_skb; 470 }; 471 472 struct qeth_qdio_q { 473 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 474 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 475 int next_buf_to_init; 476 }; 477 478 struct qeth_qdio_out_buffer { 479 struct qdio_buffer *buffer; 480 atomic_t state; 481 int next_element_to_fill; 482 struct sk_buff_head skb_list; 483 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 484 485 struct qeth_qdio_out_q *q; 486 struct qeth_qdio_out_buffer *next_pending; 487 }; 488 489 struct qeth_card; 490 491 enum qeth_out_q_states { 492 QETH_OUT_Q_UNLOCKED, 493 QETH_OUT_Q_LOCKED, 494 QETH_OUT_Q_LOCKED_FLUSH, 495 }; 496 497 struct qeth_qdio_out_q { 498 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 499 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 500 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 501 int queue_no; 502 struct qeth_card *card; 503 atomic_t state; 504 int do_pack; 505 /* 506 * index of buffer to be filled by driver; state EMPTY or PACKING 507 */ 508 int next_buf_to_fill; 509 /* 510 * number of buffers that are currently filled (PRIMED) 511 * -> these buffers are hardware-owned 512 */ 513 atomic_t used_buffers; 514 /* indicates whether PCI flag must be set (or if one is outstanding) */ 515 atomic_t set_pci_flags_count; 516 }; 517 518 struct qeth_qdio_info { 519 atomic_t state; 520 /* input */ 521 int no_in_queues; 522 struct qeth_qdio_q *in_q; 523 struct qeth_qdio_q *c_q; 524 struct qeth_qdio_buffer_pool in_buf_pool; 525 struct qeth_qdio_buffer_pool init_pool; 526 int in_buf_size; 527 528 /* output */ 529 int no_out_queues; 530 struct qeth_qdio_out_q **out_qs; 531 struct qdio_outbuf_state *out_bufstates; 532 533 /* priority queueing */ 534 int do_prio_queueing; 535 int default_out_queue; 536 }; 537 538 /** 539 * buffer stuff for read channel 540 */ 541 #define QETH_CMD_BUFFER_NO 8 542 543 /** 544 * channel state machine 545 */ 546 enum qeth_channel_states { 547 CH_STATE_UP, 548 CH_STATE_DOWN, 549 CH_STATE_ACTIVATING, 550 CH_STATE_HALTED, 551 CH_STATE_STOPPED, 552 CH_STATE_RCD, 553 CH_STATE_RCD_DONE, 554 }; 555 /** 556 * card state machine 557 */ 558 enum qeth_card_states { 559 CARD_STATE_DOWN, 560 CARD_STATE_HARDSETUP, 561 CARD_STATE_SOFTSETUP, 562 CARD_STATE_UP, 563 CARD_STATE_RECOVER, 564 }; 565 566 /** 567 * Protocol versions 568 */ 569 enum qeth_prot_versions { 570 QETH_PROT_IPV4 = 0x0004, 571 QETH_PROT_IPV6 = 0x0006, 572 }; 573 574 enum qeth_cmd_buffer_state { 575 BUF_STATE_FREE, 576 BUF_STATE_LOCKED, 577 }; 578 579 enum qeth_cq { 580 QETH_CQ_DISABLED = 0, 581 QETH_CQ_ENABLED = 1, 582 QETH_CQ_NOTAVAILABLE = 2, 583 }; 584 585 struct qeth_ipato { 586 bool enabled; 587 bool invert4; 588 bool invert6; 589 struct list_head entries; 590 }; 591 592 struct qeth_channel; 593 594 struct qeth_cmd_buffer { 595 enum qeth_cmd_buffer_state state; 596 struct qeth_channel *channel; 597 unsigned char *data; 598 int rc; 599 void (*callback)(struct qeth_card *card, struct qeth_channel *channel, 600 struct qeth_cmd_buffer *iob); 601 }; 602 603 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 604 { 605 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 606 } 607 608 /** 609 * definition of a qeth channel, used for read and write 610 */ 611 struct qeth_channel { 612 enum qeth_channel_states state; 613 struct ccw1 *ccw; 614 spinlock_t iob_lock; 615 wait_queue_head_t wait_q; 616 struct ccw_device *ccwdev; 617 /*command buffer for control data*/ 618 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 619 atomic_t irq_pending; 620 int io_buf_no; 621 }; 622 623 /** 624 * OSA card related definitions 625 */ 626 struct qeth_token { 627 __u32 issuer_rm_w; 628 __u32 issuer_rm_r; 629 __u32 cm_filter_w; 630 __u32 cm_filter_r; 631 __u32 cm_connection_w; 632 __u32 cm_connection_r; 633 __u32 ulp_filter_w; 634 __u32 ulp_filter_r; 635 __u32 ulp_connection_w; 636 __u32 ulp_connection_r; 637 }; 638 639 struct qeth_seqno { 640 __u32 trans_hdr; 641 __u32 pdu_hdr; 642 __u32 pdu_hdr_ack; 643 __u16 ipa; 644 __u32 pkt_seqno; 645 }; 646 647 struct qeth_reply { 648 struct list_head list; 649 wait_queue_head_t wait_q; 650 int (*callback)(struct qeth_card *, struct qeth_reply *, 651 unsigned long); 652 u32 seqno; 653 unsigned long offset; 654 atomic_t received; 655 int rc; 656 void *param; 657 refcount_t refcnt; 658 }; 659 660 struct qeth_card_blkt { 661 int time_total; 662 int inter_packet; 663 int inter_packet_jumbo; 664 }; 665 666 #define QETH_BROADCAST_WITH_ECHO 0x01 667 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 668 #define QETH_LAYER2_MAC_REGISTERED 0x02 669 struct qeth_card_info { 670 unsigned short unit_addr2; 671 unsigned short cula; 672 unsigned short chpid; 673 __u16 func_level; 674 char mcl_level[QETH_MCL_LENGTH + 1]; 675 int guestlan; 676 int mac_bits; 677 enum qeth_card_types type; 678 enum qeth_link_types link_type; 679 int broadcast_capable; 680 int unique_id; 681 bool layer_enforced; 682 struct qeth_card_blkt blkt; 683 enum qeth_ipa_promisc_modes promisc_mode; 684 __u32 diagass_support; 685 __u32 hwtrap; 686 }; 687 688 enum qeth_discipline_id { 689 QETH_DISCIPLINE_UNDETERMINED = -1, 690 QETH_DISCIPLINE_LAYER3 = 0, 691 QETH_DISCIPLINE_LAYER2 = 1, 692 }; 693 694 struct qeth_card_options { 695 struct qeth_routing_info route4; 696 struct qeth_ipa_info ipa4; 697 struct qeth_ipa_info adp; /*Adapter parameters*/ 698 struct qeth_routing_info route6; 699 struct qeth_ipa_info ipa6; 700 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 701 struct qeth_vnicc_info vnicc; /* VNICC options */ 702 int fake_broadcast; 703 enum qeth_discipline_id layer; 704 int performance_stats; 705 int rx_sg_cb; 706 enum qeth_ipa_isolation_modes isolation; 707 enum qeth_ipa_isolation_modes prev_isolation; 708 int sniffer; 709 enum qeth_cq cq; 710 char hsuid[9]; 711 }; 712 713 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 714 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 715 716 /* 717 * thread bits for qeth_card thread masks 718 */ 719 enum qeth_threads { 720 QETH_RECOVER_THREAD = 1, 721 }; 722 723 struct qeth_osn_info { 724 int (*assist_cb)(struct net_device *dev, void *data); 725 int (*data_cb)(struct sk_buff *skb); 726 }; 727 728 struct qeth_discipline { 729 const struct device_type *devtype; 730 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 731 int (*recover)(void *ptr); 732 int (*setup) (struct ccwgroup_device *); 733 void (*remove) (struct ccwgroup_device *); 734 int (*set_online) (struct ccwgroup_device *); 735 int (*set_offline) (struct ccwgroup_device *); 736 int (*freeze)(struct ccwgroup_device *); 737 int (*thaw) (struct ccwgroup_device *); 738 int (*restore)(struct ccwgroup_device *); 739 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 740 int (*control_event_handler)(struct qeth_card *card, 741 struct qeth_ipa_cmd *cmd); 742 }; 743 744 struct qeth_vlan_vid { 745 struct list_head list; 746 unsigned short vid; 747 }; 748 749 enum qeth_addr_disposition { 750 QETH_DISP_ADDR_DELETE = 0, 751 QETH_DISP_ADDR_DO_NOTHING = 1, 752 QETH_DISP_ADDR_ADD = 2, 753 }; 754 755 struct qeth_rx { 756 int b_count; 757 int b_index; 758 struct qdio_buffer_element *b_element; 759 int e_offset; 760 int qdio_err; 761 }; 762 763 struct carrier_info { 764 __u8 card_type; 765 __u16 port_mode; 766 __u32 port_speed; 767 }; 768 769 struct qeth_switch_info { 770 __u32 capabilities; 771 __u32 settings; 772 }; 773 774 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 775 776 struct qeth_card { 777 enum qeth_card_states state; 778 spinlock_t lock; 779 struct ccwgroup_device *gdev; 780 struct qeth_channel read; 781 struct qeth_channel write; 782 struct qeth_channel data; 783 784 struct net_device *dev; 785 struct net_device_stats stats; 786 787 struct qeth_card_info info; 788 struct qeth_token token; 789 struct qeth_seqno seqno; 790 struct qeth_card_options options; 791 792 wait_queue_head_t wait_q; 793 spinlock_t mclock; 794 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 795 struct mutex vid_list_mutex; /* vid_list */ 796 struct list_head vid_list; 797 DECLARE_HASHTABLE(mac_htable, 4); 798 DECLARE_HASHTABLE(ip_htable, 4); 799 DECLARE_HASHTABLE(ip_mc_htable, 4); 800 struct work_struct kernel_thread_starter; 801 spinlock_t thread_mask_lock; 802 unsigned long thread_start_mask; 803 unsigned long thread_allowed_mask; 804 unsigned long thread_running_mask; 805 struct task_struct *recovery_task; 806 spinlock_t ip_lock; 807 struct qeth_ipato ipato; 808 struct list_head cmd_waiter_list; 809 /* QDIO buffer handling */ 810 struct qeth_qdio_info qdio; 811 struct qeth_perf_stats perf_stats; 812 int read_or_write_problem; 813 struct qeth_osn_info osn_info; 814 struct qeth_discipline *discipline; 815 atomic_t force_alloc_skb; 816 struct service_level qeth_service_level; 817 struct qdio_ssqd_desc ssqd; 818 debug_info_t *debug; 819 struct mutex conf_mutex; 820 struct mutex discipline_mutex; 821 struct napi_struct napi; 822 struct qeth_rx rx; 823 struct delayed_work buffer_reclaim_work; 824 int reclaim_index; 825 struct work_struct close_dev_work; 826 }; 827 828 struct qeth_trap_id { 829 __u16 lparnr; 830 char vmname[8]; 831 __u8 chpid; 832 __u8 ssid; 833 __u16 devno; 834 } __packed; 835 836 /*some helper functions*/ 837 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 838 839 static inline bool qeth_netdev_is_registered(struct net_device *dev) 840 { 841 return dev->netdev_ops != NULL; 842 } 843 844 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 845 unsigned int elements) 846 { 847 unsigned int i; 848 849 for (i = 0; i < elements; i++) 850 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 851 buf->element[14].sflags = 0; 852 buf->element[15].sflags = 0; 853 } 854 855 /** 856 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 857 * @start: Start of the address range. 858 * @end: Address after the end of the range. 859 * 860 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 861 * the specified address range. 862 */ 863 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 864 { 865 return PFN_UP(end) - PFN_DOWN(start); 866 } 867 868 static inline int qeth_get_micros(void) 869 { 870 return (int) (get_tod_clock() >> 12); 871 } 872 873 static inline int qeth_get_ip_version(struct sk_buff *skb) 874 { 875 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 876 __be16 prot = veth->h_vlan_proto; 877 878 if (prot == htons(ETH_P_8021Q)) 879 prot = veth->h_vlan_encapsulated_proto; 880 881 switch (prot) { 882 case htons(ETH_P_IPV6): 883 return 6; 884 case htons(ETH_P_IP): 885 return 4; 886 default: 887 return 0; 888 } 889 } 890 891 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 892 u8 flags) 893 { 894 if ((card->dev->features & NETIF_F_RXCSUM) && 895 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 896 skb->ip_summed = CHECKSUM_UNNECESSARY; 897 if (card->options.performance_stats) 898 card->perf_stats.rx_csum++; 899 } else { 900 skb->ip_summed = CHECKSUM_NONE; 901 } 902 } 903 904 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 905 { 906 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 907 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 908 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 909 *flags |= QETH_HDR_EXT_UDP; 910 } 911 912 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 913 struct qeth_buffer_pool_entry *entry) 914 { 915 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 916 } 917 918 static inline int qeth_is_diagass_supported(struct qeth_card *card, 919 enum qeth_diags_cmds cmd) 920 { 921 return card->info.diagass_support & (__u32)cmd; 922 } 923 924 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 925 enum qeth_ipa_funcs ipa_func, 926 u16 cmd_code, long data, 927 enum qeth_prot_versions prot); 928 /* IPv4 variant */ 929 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 930 enum qeth_ipa_funcs ipa_func, 931 u16 cmd_code, long data) 932 { 933 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 934 data, QETH_PROT_IPV4); 935 } 936 937 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 938 enum qeth_ipa_funcs ipa_func, 939 u16 cmd_code, long data) 940 { 941 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 942 data, QETH_PROT_IPV6); 943 } 944 945 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 946 int ipv); 947 static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card, 948 struct sk_buff *skb, 949 int ipv, int cast_type) 950 { 951 if (IS_IQD(card) && cast_type != RTN_UNICAST) 952 return card->qdio.out_qs[card->qdio.no_out_queues - 1]; 953 if (!card->qdio.do_prio_queueing) 954 return card->qdio.out_qs[card->qdio.default_out_queue]; 955 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)]; 956 } 957 958 extern struct qeth_discipline qeth_l2_discipline; 959 extern struct qeth_discipline qeth_l3_discipline; 960 extern const struct attribute_group *qeth_generic_attr_groups[]; 961 extern const struct attribute_group *qeth_osn_attr_groups[]; 962 extern const struct attribute_group qeth_device_attr_group; 963 extern const struct attribute_group qeth_device_blkt_group; 964 extern const struct device_type qeth_generic_devtype; 965 extern struct workqueue_struct *qeth_wq; 966 967 int qeth_card_hw_is_reachable(struct qeth_card *); 968 const char *qeth_get_cardname_short(struct qeth_card *); 969 int qeth_realloc_buffer_pool(struct qeth_card *, int); 970 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 971 void qeth_core_free_discipline(struct qeth_card *); 972 973 /* exports for qeth discipline device drivers */ 974 extern struct kmem_cache *qeth_core_header_cache; 975 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 976 977 struct net_device *qeth_clone_netdev(struct net_device *orig); 978 struct qeth_card *qeth_get_card_by_busid(char *bus_id); 979 void qeth_set_recovery_task(struct qeth_card *); 980 void qeth_clear_recovery_task(struct qeth_card *); 981 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 982 int qeth_threads_running(struct qeth_card *, unsigned long); 983 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 984 int qeth_do_run_thread(struct qeth_card *, unsigned long); 985 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 986 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 987 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok); 988 void qeth_print_status_message(struct qeth_card *); 989 int qeth_init_qdio_queues(struct qeth_card *); 990 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 991 int (*reply_cb) 992 (struct qeth_card *, struct qeth_reply *, unsigned long), 993 void *); 994 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 995 enum qeth_ipa_cmds, enum qeth_prot_versions); 996 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 997 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 998 struct qeth_hdr **); 999 void qeth_schedule_recovery(struct qeth_card *); 1000 int qeth_poll(struct napi_struct *napi, int budget); 1001 void qeth_clear_ipacmd_list(struct qeth_card *); 1002 int qeth_qdio_clear_card(struct qeth_card *, int); 1003 void qeth_clear_working_pool_list(struct qeth_card *); 1004 void qeth_clear_cmd_buffers(struct qeth_channel *); 1005 void qeth_clear_qdio_buffers(struct qeth_card *); 1006 void qeth_setadp_promisc_mode(struct qeth_card *); 1007 struct net_device_stats *qeth_get_stats(struct net_device *); 1008 int qeth_setadpparms_change_macaddr(struct qeth_card *); 1009 void qeth_tx_timeout(struct net_device *); 1010 void qeth_prepare_control_data(struct qeth_card *, int, 1011 struct qeth_cmd_buffer *); 1012 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 1013 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob); 1014 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 1015 int qeth_query_switch_attributes(struct qeth_card *card, 1016 struct qeth_switch_info *sw_info); 1017 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 1018 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 1019 void *reply_param); 1020 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 1021 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1022 struct sk_buff *skb, struct qeth_hdr *hdr, 1023 unsigned int offset, unsigned int hd_len, 1024 int elements_needed); 1025 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1026 int qeth_core_get_sset_count(struct net_device *, int); 1027 void qeth_core_get_ethtool_stats(struct net_device *, 1028 struct ethtool_stats *, u64 *); 1029 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1030 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1031 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1032 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1033 struct ethtool_link_ksettings *cmd); 1034 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1035 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1036 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1037 void qeth_trace_features(struct qeth_card *); 1038 void qeth_close_dev(struct qeth_card *); 1039 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1040 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1041 enum qeth_ipa_funcs, 1042 __u16, __u16, 1043 enum qeth_prot_versions); 1044 int qeth_set_features(struct net_device *, netdev_features_t); 1045 void qeth_enable_hw_features(struct net_device *dev); 1046 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1047 netdev_features_t qeth_features_check(struct sk_buff *skb, 1048 struct net_device *dev, 1049 netdev_features_t features); 1050 int qeth_vm_request_mac(struct qeth_card *card); 1051 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1052 struct qeth_qdio_out_q *queue, int ipv, int cast_type, 1053 void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 1054 struct sk_buff *skb, int ipv, int cast_type, 1055 unsigned int data_len)); 1056 1057 /* exports for OSN */ 1058 int qeth_osn_assist(struct net_device *, void *, int); 1059 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1060 int (*assist_cb)(struct net_device *, void *), 1061 int (*data_cb)(struct sk_buff *)); 1062 void qeth_osn_deregister(struct net_device *); 1063 1064 #endif /* __QETH_CORE_H__ */ 1065