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 #include <linux/workqueue.h> 26 27 #include <net/ipv6.h> 28 #include <net/if_inet6.h> 29 #include <net/addrconf.h> 30 #include <net/tcp.h> 31 32 #include <asm/debug.h> 33 #include <asm/qdio.h> 34 #include <asm/ccwdev.h> 35 #include <asm/ccwgroup.h> 36 #include <asm/sysinfo.h> 37 38 #include "qeth_core_mpc.h" 39 40 /** 41 * Debug Facility stuff 42 */ 43 enum qeth_dbf_names { 44 QETH_DBF_SETUP, 45 QETH_DBF_MSG, 46 QETH_DBF_CTRL, 47 QETH_DBF_INFOS /* must be last element */ 48 }; 49 50 struct qeth_dbf_info { 51 char name[DEBUG_MAX_NAME_LEN]; 52 int pages; 53 int areas; 54 int len; 55 int level; 56 struct debug_view *view; 57 debug_info_t *id; 58 }; 59 60 #define QETH_DBF_CTRL_LEN 256 61 62 #define QETH_DBF_TEXT(name, level, text) \ 63 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 64 65 #define QETH_DBF_HEX(name, level, addr, len) \ 66 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 67 68 #define QETH_DBF_MESSAGE(level, text...) \ 69 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 70 71 #define QETH_DBF_TEXT_(name, level, text...) \ 72 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 73 74 #define QETH_CARD_TEXT(card, level, text) \ 75 debug_text_event(card->debug, level, text) 76 77 #define QETH_CARD_HEX(card, level, addr, len) \ 78 debug_event(card->debug, level, (void *)(addr), len) 79 80 #define QETH_CARD_MESSAGE(card, text...) \ 81 debug_sprintf_event(card->debug, level, text) 82 83 #define QETH_CARD_TEXT_(card, level, text...) \ 84 qeth_dbf_longtext(card->debug, level, text) 85 86 #define SENSE_COMMAND_REJECT_BYTE 0 87 #define SENSE_COMMAND_REJECT_FLAG 0x80 88 #define SENSE_RESETTING_EVENT_BYTE 1 89 #define SENSE_RESETTING_EVENT_FLAG 0x80 90 91 static inline u32 qeth_get_device_id(struct ccw_device *cdev) 92 { 93 struct ccw_dev_id dev_id; 94 u32 id; 95 96 ccw_device_get_id(cdev, &dev_id); 97 id = dev_id.devno; 98 id |= (u32) (dev_id.ssid << 16); 99 100 return id; 101 } 102 103 /* 104 * Common IO related definitions 105 */ 106 #define CARD_RDEV(card) card->read.ccwdev 107 #define CARD_WDEV(card) card->write.ccwdev 108 #define CARD_DDEV(card) card->data.ccwdev 109 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 110 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 111 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 112 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 113 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev)) 114 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card))) 115 116 /** 117 * card stuff 118 */ 119 struct qeth_perf_stats { 120 unsigned int bufs_rec; 121 unsigned int bufs_sent; 122 unsigned int buf_elements_sent; 123 124 unsigned int skbs_sent_pack; 125 unsigned int bufs_sent_pack; 126 127 unsigned int sc_dp_p; 128 unsigned int sc_p_dp; 129 /* qdio_cq_handler: number of times called, time spent in */ 130 __u64 cq_start_time; 131 unsigned int cq_cnt; 132 unsigned int cq_time; 133 /* qdio_input_handler: number of times called, time spent in */ 134 __u64 inbound_start_time; 135 unsigned int inbound_cnt; 136 unsigned int inbound_time; 137 /* qeth_send_packet: number of times called, time spent in */ 138 __u64 outbound_start_time; 139 unsigned int outbound_cnt; 140 unsigned int outbound_time; 141 /* qdio_output_handler: number of times called, time spent in */ 142 __u64 outbound_handler_start_time; 143 unsigned int outbound_handler_cnt; 144 unsigned int outbound_handler_time; 145 /* number of calls to and time spent in do_QDIO for inbound queue */ 146 __u64 inbound_do_qdio_start_time; 147 unsigned int inbound_do_qdio_cnt; 148 unsigned int inbound_do_qdio_time; 149 /* number of calls to and time spent in do_QDIO for outbound queues */ 150 __u64 outbound_do_qdio_start_time; 151 unsigned int outbound_do_qdio_cnt; 152 unsigned int outbound_do_qdio_time; 153 unsigned int large_send_bytes; 154 unsigned int large_send_cnt; 155 unsigned int sg_skbs_sent; 156 /* initial values when measuring starts */ 157 unsigned long initial_rx_packets; 158 unsigned long initial_tx_packets; 159 /* inbound scatter gather data */ 160 unsigned int sg_skbs_rx; 161 unsigned int sg_frags_rx; 162 unsigned int sg_alloc_page_rx; 163 unsigned int tx_csum; 164 unsigned int tx_lin; 165 unsigned int tx_linfail; 166 unsigned int rx_csum; 167 }; 168 169 /* Routing stuff */ 170 struct qeth_routing_info { 171 enum qeth_routing_types type; 172 }; 173 174 /* IPA stuff */ 175 struct qeth_ipa_info { 176 __u32 supported_funcs; 177 __u32 enabled_funcs; 178 }; 179 180 /* SETBRIDGEPORT stuff */ 181 enum qeth_sbp_roles { 182 QETH_SBP_ROLE_NONE = 0, 183 QETH_SBP_ROLE_PRIMARY = 1, 184 QETH_SBP_ROLE_SECONDARY = 2, 185 }; 186 187 enum qeth_sbp_states { 188 QETH_SBP_STATE_INACTIVE = 0, 189 QETH_SBP_STATE_STANDBY = 1, 190 QETH_SBP_STATE_ACTIVE = 2, 191 }; 192 193 #define QETH_SBP_HOST_NOTIFICATION 1 194 195 struct qeth_sbp_info { 196 __u32 supported_funcs; 197 enum qeth_sbp_roles role; 198 __u32 hostnotification:1; 199 __u32 reflect_promisc:1; 200 __u32 reflect_promisc_primary:1; 201 }; 202 203 struct qeth_vnicc_info { 204 /* supported/currently configured VNICCs; updated in IPA exchanges */ 205 u32 sup_chars; 206 u32 cur_chars; 207 /* supported commands: bitmasks which VNICCs support respective cmd */ 208 u32 set_char_sup; 209 u32 getset_timeout_sup; 210 /* timeout value for the learning characteristic */ 211 u32 learning_timeout; 212 /* characteristics wanted/configured by user */ 213 u32 wanted_chars; 214 /* has user explicitly enabled rx_bcast while online? */ 215 bool rx_bcast_enabled; 216 }; 217 218 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 219 enum qeth_ipa_funcs func) 220 { 221 return (ipa->supported_funcs & func); 222 } 223 224 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 225 enum qeth_ipa_funcs func) 226 { 227 return (ipa->supported_funcs & ipa->enabled_funcs & func); 228 } 229 230 #define qeth_adp_supported(c, f) \ 231 qeth_is_ipa_supported(&c->options.adp, f) 232 #define qeth_adp_enabled(c, f) \ 233 qeth_is_ipa_enabled(&c->options.adp, f) 234 #define qeth_is_supported(c, f) \ 235 qeth_is_ipa_supported(&c->options.ipa4, f) 236 #define qeth_is_enabled(c, f) \ 237 qeth_is_ipa_enabled(&c->options.ipa4, f) 238 #define qeth_is_supported6(c, f) \ 239 qeth_is_ipa_supported(&c->options.ipa6, f) 240 #define qeth_is_enabled6(c, f) \ 241 qeth_is_ipa_enabled(&c->options.ipa6, f) 242 #define qeth_is_ipafunc_supported(c, prot, f) \ 243 ((prot == QETH_PROT_IPV6) ? \ 244 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 245 #define qeth_is_ipafunc_enabled(c, prot, f) \ 246 ((prot == QETH_PROT_IPV6) ? \ 247 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 248 249 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 250 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 251 252 #define QETH_BUFSIZE 4096 253 #define CCW_CMD_WRITE 0x01 254 #define CCW_CMD_READ 0x02 255 256 /** 257 * some more defs 258 */ 259 #define QETH_TX_TIMEOUT 100 * HZ 260 #define QETH_RCD_TIMEOUT 60 * HZ 261 #define QETH_RECLAIM_WORK_TIME HZ 262 #define QETH_MAX_PORTNO 15 263 264 /*IPv6 address autoconfiguration stuff*/ 265 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 266 #define UNIQUE_ID_NOT_BY_CARD 0x10000 267 268 /*****************************************************************************/ 269 /* QDIO queue and buffer handling */ 270 /*****************************************************************************/ 271 #define QETH_MAX_QUEUES 4 272 #define QETH_IN_BUF_SIZE_DEFAULT 65536 273 #define QETH_IN_BUF_COUNT_DEFAULT 64 274 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 275 #define QETH_IN_BUF_COUNT_MIN 8 276 #define QETH_IN_BUF_COUNT_MAX 128 277 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 278 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 279 ((card)->qdio.in_buf_pool.buf_count / 2) 280 281 /* buffers we have to be behind before we get a PCI */ 282 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 283 /*enqueued free buffers left before we get a PCI*/ 284 #define QETH_PCI_THRESHOLD_B(card) 0 285 /*not used unless the microcode gets patched*/ 286 #define QETH_PCI_TIMER_VALUE(card) 3 287 288 /* priority queing */ 289 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 290 #define QETH_DEFAULT_QUEUE 2 291 #define QETH_NO_PRIO_QUEUEING 0 292 #define QETH_PRIO_Q_ING_PREC 1 293 #define QETH_PRIO_Q_ING_TOS 2 294 #define QETH_PRIO_Q_ING_SKB 3 295 #define QETH_PRIO_Q_ING_VLAN 4 296 297 /* Packing */ 298 #define QETH_LOW_WATERMARK_PACK 2 299 #define QETH_HIGH_WATERMARK_PACK 5 300 #define QETH_WATERMARK_PACK_FUZZ 1 301 302 /* large receive scatter gather copy break */ 303 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 304 #define QETH_RX_PULL_LEN 256 305 306 struct qeth_hdr_layer3 { 307 __u8 id; 308 __u8 flags; 309 __u16 inbound_checksum; /*TSO:__u16 seqno */ 310 __u32 token; /*TSO: __u32 reserved */ 311 __u16 length; 312 __u8 vlan_prio; 313 __u8 ext_flags; 314 __u16 vlan_id; 315 __u16 frame_offset; 316 union { 317 /* TX: */ 318 struct in6_addr ipv6_addr; 319 struct ipv4 { 320 u8 res[12]; 321 u32 addr; 322 } ipv4; 323 /* RX: */ 324 struct rx { 325 u8 res1[2]; 326 u8 src_mac[6]; 327 u8 res2[4]; 328 u16 vlan_id; 329 u8 res3[2]; 330 } rx; 331 } next_hop; 332 }; 333 334 struct qeth_hdr_layer2 { 335 __u8 id; 336 __u8 flags[3]; 337 __u8 port_no; 338 __u8 hdr_length; 339 __u16 pkt_length; 340 __u16 seq_no; 341 __u16 vlan_id; 342 __u32 reserved; 343 __u8 reserved2[16]; 344 } __attribute__ ((packed)); 345 346 struct qeth_hdr_osn { 347 __u8 id; 348 __u8 reserved; 349 __u16 seq_no; 350 __u16 reserved2; 351 __u16 control_flags; 352 __u16 pdu_length; 353 __u8 reserved3[18]; 354 __u32 ccid; 355 } __attribute__ ((packed)); 356 357 struct qeth_hdr { 358 union { 359 struct qeth_hdr_layer2 l2; 360 struct qeth_hdr_layer3 l3; 361 struct qeth_hdr_osn osn; 362 } hdr; 363 } __attribute__ ((packed)); 364 365 /*TCP Segmentation Offload header*/ 366 struct qeth_hdr_ext_tso { 367 __u16 hdr_tot_len; 368 __u8 imb_hdr_no; 369 __u8 reserved; 370 __u8 hdr_type; 371 __u8 hdr_version; 372 __u16 hdr_len; 373 __u32 payload_len; 374 __u16 mss; 375 __u16 dg_hdr_len; 376 __u8 padding[16]; 377 } __attribute__ ((packed)); 378 379 struct qeth_hdr_tso { 380 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 381 struct qeth_hdr_ext_tso ext; 382 } __attribute__ ((packed)); 383 384 385 /* flags for qeth_hdr.flags */ 386 #define QETH_HDR_PASSTHRU 0x10 387 #define QETH_HDR_IPV6 0x80 388 #define QETH_HDR_CAST_MASK 0x07 389 enum qeth_cast_flags { 390 QETH_CAST_UNICAST = 0x06, 391 QETH_CAST_MULTICAST = 0x04, 392 QETH_CAST_BROADCAST = 0x05, 393 QETH_CAST_ANYCAST = 0x07, 394 QETH_CAST_NOCAST = 0x00, 395 }; 396 397 enum qeth_layer2_frame_flags { 398 QETH_LAYER2_FLAG_MULTICAST = 0x01, 399 QETH_LAYER2_FLAG_BROADCAST = 0x02, 400 QETH_LAYER2_FLAG_UNICAST = 0x04, 401 QETH_LAYER2_FLAG_VLAN = 0x10, 402 }; 403 404 enum qeth_header_ids { 405 QETH_HEADER_TYPE_LAYER3 = 0x01, 406 QETH_HEADER_TYPE_LAYER2 = 0x02, 407 QETH_HEADER_TYPE_L3_TSO = 0x03, 408 QETH_HEADER_TYPE_OSN = 0x04, 409 QETH_HEADER_TYPE_L2_TSO = 0x06, 410 }; 411 /* flags for qeth_hdr.ext_flags */ 412 #define QETH_HDR_EXT_VLAN_FRAME 0x01 413 #define QETH_HDR_EXT_TOKEN_ID 0x02 414 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 415 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 416 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 417 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 418 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 419 420 enum qeth_qdio_buffer_states { 421 /* 422 * inbound: read out by driver; owned by hardware in order to be filled 423 * outbound: owned by driver in order to be filled 424 */ 425 QETH_QDIO_BUF_EMPTY, 426 /* 427 * inbound: filled by hardware; owned by driver in order to be read out 428 * outbound: filled by driver; owned by hardware in order to be sent 429 */ 430 QETH_QDIO_BUF_PRIMED, 431 /* 432 * inbound: not applicable 433 * outbound: identified to be pending in TPQ 434 */ 435 QETH_QDIO_BUF_PENDING, 436 /* 437 * inbound: not applicable 438 * outbound: found in completion queue 439 */ 440 QETH_QDIO_BUF_IN_CQ, 441 /* 442 * inbound: not applicable 443 * outbound: handled via transfer pending / completion queue 444 */ 445 QETH_QDIO_BUF_HANDLED_DELAYED, 446 }; 447 448 enum qeth_qdio_info_states { 449 QETH_QDIO_UNINITIALIZED, 450 QETH_QDIO_ALLOCATED, 451 QETH_QDIO_ESTABLISHED, 452 QETH_QDIO_CLEANING 453 }; 454 455 struct qeth_buffer_pool_entry { 456 struct list_head list; 457 struct list_head init_list; 458 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 459 }; 460 461 struct qeth_qdio_buffer_pool { 462 struct list_head entry_list; 463 int buf_count; 464 }; 465 466 struct qeth_qdio_buffer { 467 struct qdio_buffer *buffer; 468 /* the buffer pool entry currently associated to this buffer */ 469 struct qeth_buffer_pool_entry *pool_entry; 470 struct sk_buff *rx_skb; 471 }; 472 473 struct qeth_qdio_q { 474 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 475 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 476 int next_buf_to_init; 477 }; 478 479 struct qeth_qdio_out_buffer { 480 struct qdio_buffer *buffer; 481 atomic_t state; 482 int next_element_to_fill; 483 struct sk_buff_head skb_list; 484 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 485 486 struct qeth_qdio_out_q *q; 487 struct qeth_qdio_out_buffer *next_pending; 488 }; 489 490 struct qeth_card; 491 492 enum qeth_out_q_states { 493 QETH_OUT_Q_UNLOCKED, 494 QETH_OUT_Q_LOCKED, 495 QETH_OUT_Q_LOCKED_FLUSH, 496 }; 497 498 struct qeth_qdio_out_q { 499 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 500 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 501 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 502 int queue_no; 503 struct qeth_card *card; 504 atomic_t state; 505 int do_pack; 506 /* 507 * index of buffer to be filled by driver; state EMPTY or PACKING 508 */ 509 int next_buf_to_fill; 510 /* 511 * number of buffers that are currently filled (PRIMED) 512 * -> these buffers are hardware-owned 513 */ 514 atomic_t used_buffers; 515 /* indicates whether PCI flag must be set (or if one is outstanding) */ 516 atomic_t set_pci_flags_count; 517 }; 518 519 struct qeth_qdio_info { 520 atomic_t state; 521 /* input */ 522 int no_in_queues; 523 struct qeth_qdio_q *in_q; 524 struct qeth_qdio_q *c_q; 525 struct qeth_qdio_buffer_pool in_buf_pool; 526 struct qeth_qdio_buffer_pool init_pool; 527 int in_buf_size; 528 529 /* output */ 530 int no_out_queues; 531 struct qeth_qdio_out_q **out_qs; 532 struct qdio_outbuf_state *out_bufstates; 533 534 /* priority queueing */ 535 int do_prio_queueing; 536 int default_out_queue; 537 }; 538 539 /** 540 * buffer stuff for read channel 541 */ 542 #define QETH_CMD_BUFFER_NO 8 543 544 /** 545 * channel state machine 546 */ 547 enum qeth_channel_states { 548 CH_STATE_UP, 549 CH_STATE_DOWN, 550 CH_STATE_ACTIVATING, 551 CH_STATE_HALTED, 552 CH_STATE_STOPPED, 553 CH_STATE_RCD, 554 CH_STATE_RCD_DONE, 555 }; 556 /** 557 * card state machine 558 */ 559 enum qeth_card_states { 560 CARD_STATE_DOWN, 561 CARD_STATE_HARDSETUP, 562 CARD_STATE_SOFTSETUP, 563 CARD_STATE_UP, 564 CARD_STATE_RECOVER, 565 }; 566 567 /** 568 * Protocol versions 569 */ 570 enum qeth_prot_versions { 571 QETH_PROT_IPV4 = 0x0004, 572 QETH_PROT_IPV6 = 0x0006, 573 }; 574 575 enum qeth_cmd_buffer_state { 576 BUF_STATE_FREE, 577 BUF_STATE_LOCKED, 578 }; 579 580 enum qeth_cq { 581 QETH_CQ_DISABLED = 0, 582 QETH_CQ_ENABLED = 1, 583 QETH_CQ_NOTAVAILABLE = 2, 584 }; 585 586 struct qeth_ipato { 587 bool enabled; 588 bool invert4; 589 bool invert6; 590 struct list_head entries; 591 }; 592 593 struct qeth_channel; 594 595 struct qeth_cmd_buffer { 596 enum qeth_cmd_buffer_state state; 597 struct qeth_channel *channel; 598 unsigned char *data; 599 int rc; 600 void (*callback)(struct qeth_card *card, struct qeth_channel *channel, 601 struct qeth_cmd_buffer *iob); 602 }; 603 604 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 605 { 606 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 607 } 608 609 /** 610 * definition of a qeth channel, used for read and write 611 */ 612 struct qeth_channel { 613 enum qeth_channel_states state; 614 struct ccw1 *ccw; 615 spinlock_t iob_lock; 616 wait_queue_head_t wait_q; 617 struct ccw_device *ccwdev; 618 /*command buffer for control data*/ 619 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 620 atomic_t irq_pending; 621 int io_buf_no; 622 }; 623 624 /** 625 * OSA card related definitions 626 */ 627 struct qeth_token { 628 __u32 issuer_rm_w; 629 __u32 issuer_rm_r; 630 __u32 cm_filter_w; 631 __u32 cm_filter_r; 632 __u32 cm_connection_w; 633 __u32 cm_connection_r; 634 __u32 ulp_filter_w; 635 __u32 ulp_filter_r; 636 __u32 ulp_connection_w; 637 __u32 ulp_connection_r; 638 }; 639 640 struct qeth_seqno { 641 __u32 trans_hdr; 642 __u32 pdu_hdr; 643 __u32 pdu_hdr_ack; 644 __u16 ipa; 645 __u32 pkt_seqno; 646 }; 647 648 struct qeth_reply { 649 struct list_head list; 650 wait_queue_head_t wait_q; 651 int (*callback)(struct qeth_card *, struct qeth_reply *, 652 unsigned long); 653 u32 seqno; 654 unsigned long offset; 655 atomic_t received; 656 int rc; 657 void *param; 658 refcount_t refcnt; 659 }; 660 661 struct qeth_card_blkt { 662 int time_total; 663 int inter_packet; 664 int inter_packet_jumbo; 665 }; 666 667 #define QETH_BROADCAST_WITH_ECHO 0x01 668 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 669 #define QETH_LAYER2_MAC_REGISTERED 0x02 670 struct qeth_card_info { 671 unsigned short unit_addr2; 672 unsigned short cula; 673 unsigned short chpid; 674 __u16 func_level; 675 char mcl_level[QETH_MCL_LENGTH + 1]; 676 int guestlan; 677 int mac_bits; 678 enum qeth_card_types type; 679 enum qeth_link_types link_type; 680 int broadcast_capable; 681 int unique_id; 682 bool layer_enforced; 683 struct qeth_card_blkt blkt; 684 enum qeth_ipa_promisc_modes promisc_mode; 685 __u32 diagass_support; 686 __u32 hwtrap; 687 }; 688 689 enum qeth_discipline_id { 690 QETH_DISCIPLINE_UNDETERMINED = -1, 691 QETH_DISCIPLINE_LAYER3 = 0, 692 QETH_DISCIPLINE_LAYER2 = 1, 693 }; 694 695 struct qeth_card_options { 696 struct qeth_routing_info route4; 697 struct qeth_ipa_info ipa4; 698 struct qeth_ipa_info adp; /*Adapter parameters*/ 699 struct qeth_routing_info route6; 700 struct qeth_ipa_info ipa6; 701 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 702 struct qeth_vnicc_info vnicc; /* VNICC options */ 703 int fake_broadcast; 704 enum qeth_discipline_id layer; 705 int performance_stats; 706 int rx_sg_cb; 707 enum qeth_ipa_isolation_modes isolation; 708 enum qeth_ipa_isolation_modes prev_isolation; 709 int sniffer; 710 enum qeth_cq cq; 711 char hsuid[9]; 712 }; 713 714 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 715 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 716 717 /* 718 * thread bits for qeth_card thread masks 719 */ 720 enum qeth_threads { 721 QETH_RECOVER_THREAD = 1, 722 }; 723 724 struct qeth_osn_info { 725 int (*assist_cb)(struct net_device *dev, void *data); 726 int (*data_cb)(struct sk_buff *skb); 727 }; 728 729 struct qeth_discipline { 730 const struct device_type *devtype; 731 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 732 int (*recover)(void *ptr); 733 int (*setup) (struct ccwgroup_device *); 734 void (*remove) (struct ccwgroup_device *); 735 int (*set_online) (struct ccwgroup_device *); 736 int (*set_offline) (struct ccwgroup_device *); 737 int (*freeze)(struct ccwgroup_device *); 738 int (*thaw) (struct ccwgroup_device *); 739 int (*restore)(struct ccwgroup_device *); 740 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 741 int (*control_event_handler)(struct qeth_card *card, 742 struct qeth_ipa_cmd *cmd); 743 }; 744 745 struct qeth_vlan_vid { 746 struct list_head list; 747 unsigned short vid; 748 }; 749 750 enum qeth_addr_disposition { 751 QETH_DISP_ADDR_DELETE = 0, 752 QETH_DISP_ADDR_DO_NOTHING = 1, 753 QETH_DISP_ADDR_ADD = 2, 754 }; 755 756 struct qeth_rx { 757 int b_count; 758 int b_index; 759 struct qdio_buffer_element *b_element; 760 int e_offset; 761 int qdio_err; 762 }; 763 764 struct carrier_info { 765 __u8 card_type; 766 __u16 port_mode; 767 __u32 port_speed; 768 }; 769 770 struct qeth_switch_info { 771 __u32 capabilities; 772 __u32 settings; 773 }; 774 775 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT 776 777 struct qeth_card { 778 enum qeth_card_states state; 779 spinlock_t lock; 780 struct ccwgroup_device *gdev; 781 struct qeth_channel read; 782 struct qeth_channel write; 783 struct qeth_channel data; 784 785 struct net_device *dev; 786 struct net_device_stats stats; 787 788 struct qeth_card_info info; 789 struct qeth_token token; 790 struct qeth_seqno seqno; 791 struct qeth_card_options options; 792 793 struct workqueue_struct *event_wq; 794 wait_queue_head_t wait_q; 795 spinlock_t mclock; 796 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 797 struct mutex vid_list_mutex; /* vid_list */ 798 struct list_head vid_list; 799 DECLARE_HASHTABLE(mac_htable, 4); 800 DECLARE_HASHTABLE(ip_htable, 4); 801 DECLARE_HASHTABLE(ip_mc_htable, 4); 802 struct work_struct kernel_thread_starter; 803 spinlock_t thread_mask_lock; 804 unsigned long thread_start_mask; 805 unsigned long thread_allowed_mask; 806 unsigned long thread_running_mask; 807 struct task_struct *recovery_task; 808 spinlock_t ip_lock; 809 struct qeth_ipato ipato; 810 struct list_head cmd_waiter_list; 811 /* QDIO buffer handling */ 812 struct qeth_qdio_info qdio; 813 struct qeth_perf_stats perf_stats; 814 int read_or_write_problem; 815 struct qeth_osn_info osn_info; 816 struct qeth_discipline *discipline; 817 atomic_t force_alloc_skb; 818 struct service_level qeth_service_level; 819 struct qdio_ssqd_desc ssqd; 820 debug_info_t *debug; 821 struct mutex conf_mutex; 822 struct mutex discipline_mutex; 823 struct napi_struct napi; 824 struct qeth_rx rx; 825 struct delayed_work buffer_reclaim_work; 826 int reclaim_index; 827 struct work_struct close_dev_work; 828 }; 829 830 struct qeth_trap_id { 831 __u16 lparnr; 832 char vmname[8]; 833 __u8 chpid; 834 __u8 ssid; 835 __u16 devno; 836 } __packed; 837 838 /*some helper functions*/ 839 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 840 841 static inline bool qeth_netdev_is_registered(struct net_device *dev) 842 { 843 return dev->netdev_ops != NULL; 844 } 845 846 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 847 unsigned int elements) 848 { 849 unsigned int i; 850 851 for (i = 0; i < elements; i++) 852 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 853 buf->element[14].sflags = 0; 854 buf->element[15].sflags = 0; 855 } 856 857 /** 858 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 859 * @start: Start of the address range. 860 * @end: Address after the end of the range. 861 * 862 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 863 * the specified address range. 864 */ 865 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 866 { 867 return PFN_UP(end) - PFN_DOWN(start); 868 } 869 870 static inline int qeth_get_micros(void) 871 { 872 return (int) (get_tod_clock() >> 12); 873 } 874 875 static inline int qeth_get_ip_version(struct sk_buff *skb) 876 { 877 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 878 __be16 prot = veth->h_vlan_proto; 879 880 if (prot == htons(ETH_P_8021Q)) 881 prot = veth->h_vlan_encapsulated_proto; 882 883 switch (prot) { 884 case htons(ETH_P_IPV6): 885 return 6; 886 case htons(ETH_P_IP): 887 return 4; 888 default: 889 return 0; 890 } 891 } 892 893 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 894 u8 flags) 895 { 896 if ((card->dev->features & NETIF_F_RXCSUM) && 897 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 898 skb->ip_summed = CHECKSUM_UNNECESSARY; 899 if (card->options.performance_stats) 900 card->perf_stats.rx_csum++; 901 } else { 902 skb->ip_summed = CHECKSUM_NONE; 903 } 904 } 905 906 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 907 { 908 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 909 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 910 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 911 *flags |= QETH_HDR_EXT_UDP; 912 } 913 914 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 915 struct qeth_buffer_pool_entry *entry) 916 { 917 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 918 } 919 920 static inline int qeth_is_diagass_supported(struct qeth_card *card, 921 enum qeth_diags_cmds cmd) 922 { 923 return card->info.diagass_support & (__u32)cmd; 924 } 925 926 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 927 enum qeth_ipa_funcs ipa_func, 928 u16 cmd_code, long data, 929 enum qeth_prot_versions prot); 930 /* IPv4 variant */ 931 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 932 enum qeth_ipa_funcs ipa_func, 933 u16 cmd_code, long data) 934 { 935 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 936 data, QETH_PROT_IPV4); 937 } 938 939 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 940 enum qeth_ipa_funcs ipa_func, 941 u16 cmd_code, long data) 942 { 943 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 944 data, QETH_PROT_IPV6); 945 } 946 947 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 948 int ipv); 949 static inline struct qeth_qdio_out_q *qeth_get_tx_queue(struct qeth_card *card, 950 struct sk_buff *skb, 951 int ipv, int cast_type) 952 { 953 if (IS_IQD(card) && cast_type != RTN_UNICAST) 954 return card->qdio.out_qs[card->qdio.no_out_queues - 1]; 955 if (!card->qdio.do_prio_queueing) 956 return card->qdio.out_qs[card->qdio.default_out_queue]; 957 return card->qdio.out_qs[qeth_get_priority_queue(card, skb, ipv)]; 958 } 959 960 extern struct qeth_discipline qeth_l2_discipline; 961 extern struct qeth_discipline qeth_l3_discipline; 962 extern const struct attribute_group *qeth_generic_attr_groups[]; 963 extern const struct attribute_group *qeth_osn_attr_groups[]; 964 extern const struct attribute_group qeth_device_attr_group; 965 extern const struct attribute_group qeth_device_blkt_group; 966 extern const struct device_type qeth_generic_devtype; 967 968 int qeth_card_hw_is_reachable(struct qeth_card *); 969 const char *qeth_get_cardname_short(struct qeth_card *); 970 int qeth_realloc_buffer_pool(struct qeth_card *, int); 971 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 972 void qeth_core_free_discipline(struct qeth_card *); 973 974 /* exports for qeth discipline device drivers */ 975 extern struct kmem_cache *qeth_core_header_cache; 976 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 977 978 struct net_device *qeth_clone_netdev(struct net_device *orig); 979 struct qeth_card *qeth_get_card_by_busid(char *bus_id); 980 void qeth_set_recovery_task(struct qeth_card *); 981 void qeth_clear_recovery_task(struct qeth_card *); 982 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 983 int qeth_threads_running(struct qeth_card *, unsigned long); 984 int qeth_wait_for_threads(struct qeth_card *, unsigned long); 985 int qeth_do_run_thread(struct qeth_card *, unsigned long); 986 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 987 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 988 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok); 989 void qeth_print_status_message(struct qeth_card *); 990 int qeth_init_qdio_queues(struct qeth_card *); 991 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 992 int (*reply_cb) 993 (struct qeth_card *, struct qeth_reply *, unsigned long), 994 void *); 995 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 996 enum qeth_ipa_cmds, enum qeth_prot_versions); 997 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 998 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 999 struct qeth_hdr **); 1000 void qeth_schedule_recovery(struct qeth_card *); 1001 int qeth_poll(struct napi_struct *napi, int budget); 1002 void qeth_clear_ipacmd_list(struct qeth_card *); 1003 int qeth_qdio_clear_card(struct qeth_card *, int); 1004 void qeth_clear_working_pool_list(struct qeth_card *); 1005 void qeth_clear_cmd_buffers(struct qeth_channel *); 1006 void qeth_clear_qdio_buffers(struct qeth_card *); 1007 void qeth_setadp_promisc_mode(struct qeth_card *); 1008 struct net_device_stats *qeth_get_stats(struct net_device *); 1009 int qeth_setadpparms_change_macaddr(struct qeth_card *); 1010 void qeth_tx_timeout(struct net_device *); 1011 void qeth_prepare_control_data(struct qeth_card *, int, 1012 struct qeth_cmd_buffer *); 1013 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 1014 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob); 1015 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 1016 int qeth_query_switch_attributes(struct qeth_card *card, 1017 struct qeth_switch_info *sw_info); 1018 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, 1019 int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), 1020 void *reply_param); 1021 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 1022 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1023 struct sk_buff *skb, struct qeth_hdr *hdr, 1024 unsigned int offset, unsigned int hd_len, 1025 int elements_needed); 1026 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1027 int qeth_core_get_sset_count(struct net_device *, int); 1028 void qeth_core_get_ethtool_stats(struct net_device *, 1029 struct ethtool_stats *, u64 *); 1030 void qeth_core_get_strings(struct net_device *, u32, u8 *); 1031 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); 1032 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1033 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 1034 struct ethtool_link_ksettings *cmd); 1035 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1036 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1037 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1038 void qeth_trace_features(struct qeth_card *); 1039 void qeth_close_dev(struct qeth_card *); 1040 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1041 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1042 enum qeth_ipa_funcs, 1043 __u16, __u16, 1044 enum qeth_prot_versions); 1045 int qeth_set_features(struct net_device *, netdev_features_t); 1046 void qeth_enable_hw_features(struct net_device *dev); 1047 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1048 netdev_features_t qeth_features_check(struct sk_buff *skb, 1049 struct net_device *dev, 1050 netdev_features_t features); 1051 int qeth_vm_request_mac(struct qeth_card *card); 1052 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1053 struct qeth_qdio_out_q *queue, int ipv, int cast_type, 1054 void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 1055 struct sk_buff *skb, int ipv, int cast_type, 1056 unsigned int data_len)); 1057 1058 /* exports for OSN */ 1059 int qeth_osn_assist(struct net_device *, void *, int); 1060 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1061 int (*assist_cb)(struct net_device *, void *), 1062 int (*data_cb)(struct sk_buff *)); 1063 void qeth_osn_deregister(struct net_device *); 1064 1065 #endif /* __QETH_CORE_H__ */ 1066