1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2007 4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 5 * Frank Pavlic <fpavlic@de.ibm.com>, 6 * Thomas Spatzier <tspat@de.ibm.com>, 7 * Frank Blaschka <frank.blaschka@de.ibm.com> 8 */ 9 10 #ifndef __QETH_CORE_H__ 11 #define __QETH_CORE_H__ 12 13 #include <linux/completion.h> 14 #include <linux/if.h> 15 #include <linux/if_arp.h> 16 #include <linux/etherdevice.h> 17 #include <linux/if_vlan.h> 18 #include <linux/ctype.h> 19 #include <linux/in6.h> 20 #include <linux/bitops.h> 21 #include <linux/seq_file.h> 22 #include <linux/hashtable.h> 23 #include <linux/ip.h> 24 #include <linux/refcount.h> 25 #include <linux/wait.h> 26 #include <linux/workqueue.h> 27 28 #include <net/ipv6.h> 29 #include <net/if_inet6.h> 30 #include <net/addrconf.h> 31 #include <net/tcp.h> 32 33 #include <asm/debug.h> 34 #include <asm/qdio.h> 35 #include <asm/ccwdev.h> 36 #include <asm/ccwgroup.h> 37 #include <asm/sysinfo.h> 38 39 #include <uapi/linux/if_link.h> 40 41 #include "qeth_core_mpc.h" 42 43 /** 44 * Debug Facility stuff 45 */ 46 enum qeth_dbf_names { 47 QETH_DBF_SETUP, 48 QETH_DBF_MSG, 49 QETH_DBF_CTRL, 50 QETH_DBF_INFOS /* must be last element */ 51 }; 52 53 struct qeth_dbf_info { 54 char name[DEBUG_MAX_NAME_LEN]; 55 int pages; 56 int areas; 57 int len; 58 int level; 59 struct debug_view *view; 60 debug_info_t *id; 61 }; 62 63 #define QETH_DBF_CTRL_LEN 256 64 65 #define QETH_DBF_TEXT(name, level, text) \ 66 debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) 67 68 #define QETH_DBF_HEX(name, level, addr, len) \ 69 debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) 70 71 #define QETH_DBF_MESSAGE(level, text...) \ 72 debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) 73 74 #define QETH_DBF_TEXT_(name, level, text...) \ 75 qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text) 76 77 #define QETH_CARD_TEXT(card, level, text) \ 78 debug_text_event(card->debug, level, text) 79 80 #define QETH_CARD_HEX(card, level, addr, len) \ 81 debug_event(card->debug, level, (void *)(addr), len) 82 83 #define QETH_CARD_MESSAGE(card, text...) \ 84 debug_sprintf_event(card->debug, level, text) 85 86 #define QETH_CARD_TEXT_(card, level, text...) \ 87 qeth_dbf_longtext(card->debug, level, text) 88 89 #define SENSE_COMMAND_REJECT_BYTE 0 90 #define SENSE_COMMAND_REJECT_FLAG 0x80 91 #define SENSE_RESETTING_EVENT_BYTE 1 92 #define SENSE_RESETTING_EVENT_FLAG 0x80 93 94 static inline u32 qeth_get_device_id(struct ccw_device *cdev) 95 { 96 struct ccw_dev_id dev_id; 97 u32 id; 98 99 ccw_device_get_id(cdev, &dev_id); 100 id = dev_id.devno; 101 id |= (u32) (dev_id.ssid << 16); 102 103 return id; 104 } 105 106 /* 107 * Common IO related definitions 108 */ 109 #define CARD_RDEV(card) card->read.ccwdev 110 #define CARD_WDEV(card) card->write.ccwdev 111 #define CARD_DDEV(card) card->data.ccwdev 112 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) 113 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) 114 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) 115 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) 116 #define CCW_DEVID(cdev) (qeth_get_device_id(cdev)) 117 #define CARD_DEVID(card) (CCW_DEVID(CARD_RDEV(card))) 118 119 /* Routing stuff */ 120 struct qeth_routing_info { 121 enum qeth_routing_types type; 122 }; 123 124 /* IPA stuff */ 125 struct qeth_ipa_info { 126 __u32 supported_funcs; 127 __u32 enabled_funcs; 128 }; 129 130 /* SETBRIDGEPORT stuff */ 131 enum qeth_sbp_roles { 132 QETH_SBP_ROLE_NONE = 0, 133 QETH_SBP_ROLE_PRIMARY = 1, 134 QETH_SBP_ROLE_SECONDARY = 2, 135 }; 136 137 enum qeth_sbp_states { 138 QETH_SBP_STATE_INACTIVE = 0, 139 QETH_SBP_STATE_STANDBY = 1, 140 QETH_SBP_STATE_ACTIVE = 2, 141 }; 142 143 #define QETH_SBP_HOST_NOTIFICATION 1 144 145 struct qeth_sbp_info { 146 __u32 supported_funcs; 147 enum qeth_sbp_roles role; 148 __u32 hostnotification:1; 149 __u32 reflect_promisc:1; 150 __u32 reflect_promisc_primary:1; 151 }; 152 153 struct qeth_vnicc_info { 154 /* supported/currently configured VNICCs; updated in IPA exchanges */ 155 u32 sup_chars; 156 u32 cur_chars; 157 /* supported commands: bitmasks which VNICCs support respective cmd */ 158 u32 set_char_sup; 159 u32 getset_timeout_sup; 160 /* timeout value for the learning characteristic */ 161 u32 learning_timeout; 162 /* characteristics wanted/configured by user */ 163 u32 wanted_chars; 164 /* has user explicitly enabled rx_bcast while online? */ 165 bool rx_bcast_enabled; 166 }; 167 168 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, 169 enum qeth_ipa_funcs func) 170 { 171 return (ipa->supported_funcs & func); 172 } 173 174 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 175 enum qeth_ipa_funcs func) 176 { 177 return (ipa->supported_funcs & ipa->enabled_funcs & func); 178 } 179 180 #define qeth_adp_supported(c, f) \ 181 qeth_is_ipa_supported(&c->options.adp, f) 182 #define qeth_adp_enabled(c, f) \ 183 qeth_is_ipa_enabled(&c->options.adp, f) 184 #define qeth_is_supported(c, f) \ 185 qeth_is_ipa_supported(&c->options.ipa4, f) 186 #define qeth_is_enabled(c, f) \ 187 qeth_is_ipa_enabled(&c->options.ipa4, f) 188 #define qeth_is_supported6(c, f) \ 189 qeth_is_ipa_supported(&c->options.ipa6, f) 190 #define qeth_is_enabled6(c, f) \ 191 qeth_is_ipa_enabled(&c->options.ipa6, f) 192 #define qeth_is_ipafunc_supported(c, prot, f) \ 193 ((prot == QETH_PROT_IPV6) ? \ 194 qeth_is_supported6(c, f) : qeth_is_supported(c, f)) 195 #define qeth_is_ipafunc_enabled(c, prot, f) \ 196 ((prot == QETH_PROT_IPV6) ? \ 197 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) 198 199 #define QETH_IDX_FUNC_LEVEL_OSD 0x0101 200 #define QETH_IDX_FUNC_LEVEL_IQD 0x4108 201 202 #define QETH_BUFSIZE 4096 203 #define CCW_CMD_WRITE 0x01 204 #define CCW_CMD_READ 0x02 205 206 /** 207 * some more defs 208 */ 209 #define QETH_TX_TIMEOUT 100 * HZ 210 #define QETH_RCD_TIMEOUT 60 * HZ 211 #define QETH_RECLAIM_WORK_TIME HZ 212 #define QETH_MAX_PORTNO 15 213 214 /*IPv6 address autoconfiguration stuff*/ 215 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe 216 #define UNIQUE_ID_NOT_BY_CARD 0x10000 217 218 /*****************************************************************************/ 219 /* QDIO queue and buffer handling */ 220 /*****************************************************************************/ 221 #define QETH_MAX_QUEUES 4 222 #define QETH_IQD_MIN_TXQ 2 /* One for ucast, one for mcast. */ 223 #define QETH_IQD_MCAST_TXQ 0 224 #define QETH_IQD_MIN_UCAST_TXQ 1 225 #define QETH_IN_BUF_SIZE_DEFAULT 65536 226 #define QETH_IN_BUF_COUNT_DEFAULT 64 227 #define QETH_IN_BUF_COUNT_HSDEFAULT 128 228 #define QETH_IN_BUF_COUNT_MIN 8 229 #define QETH_IN_BUF_COUNT_MAX 128 230 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) 231 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ 232 ((card)->qdio.in_buf_pool.buf_count / 2) 233 234 /* buffers we have to be behind before we get a PCI */ 235 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) 236 /*enqueued free buffers left before we get a PCI*/ 237 #define QETH_PCI_THRESHOLD_B(card) 0 238 /*not used unless the microcode gets patched*/ 239 #define QETH_PCI_TIMER_VALUE(card) 3 240 241 /* priority queing */ 242 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING 243 #define QETH_DEFAULT_QUEUE 2 244 #define QETH_NO_PRIO_QUEUEING 0 245 #define QETH_PRIO_Q_ING_PREC 1 246 #define QETH_PRIO_Q_ING_TOS 2 247 #define QETH_PRIO_Q_ING_SKB 3 248 #define QETH_PRIO_Q_ING_VLAN 4 249 250 /* Packing */ 251 #define QETH_LOW_WATERMARK_PACK 2 252 #define QETH_HIGH_WATERMARK_PACK 5 253 #define QETH_WATERMARK_PACK_FUZZ 1 254 255 /* large receive scatter gather copy break */ 256 #define QETH_RX_SG_CB (PAGE_SIZE >> 1) 257 #define QETH_RX_PULL_LEN 256 258 259 struct qeth_hdr_layer3 { 260 __u8 id; 261 __u8 flags; 262 __u16 inbound_checksum; /*TSO:__u16 seqno */ 263 __u32 token; /*TSO: __u32 reserved */ 264 __u16 length; 265 __u8 vlan_prio; 266 __u8 ext_flags; 267 __u16 vlan_id; 268 __u16 frame_offset; 269 union { 270 /* TX: */ 271 struct in6_addr ipv6_addr; 272 struct ipv4 { 273 u8 res[12]; 274 u32 addr; 275 } ipv4; 276 /* RX: */ 277 struct rx { 278 u8 res1[2]; 279 u8 src_mac[6]; 280 u8 res2[4]; 281 u16 vlan_id; 282 u8 res3[2]; 283 } rx; 284 } next_hop; 285 }; 286 287 struct qeth_hdr_layer2 { 288 __u8 id; 289 __u8 flags[3]; 290 __u8 port_no; 291 __u8 hdr_length; 292 __u16 pkt_length; 293 __u16 seq_no; 294 __u16 vlan_id; 295 __u32 reserved; 296 __u8 reserved2[16]; 297 } __attribute__ ((packed)); 298 299 struct qeth_hdr_osn { 300 __u8 id; 301 __u8 reserved; 302 __u16 seq_no; 303 __u16 reserved2; 304 __u16 control_flags; 305 __u16 pdu_length; 306 __u8 reserved3[18]; 307 __u32 ccid; 308 } __attribute__ ((packed)); 309 310 struct qeth_hdr { 311 union { 312 struct qeth_hdr_layer2 l2; 313 struct qeth_hdr_layer3 l3; 314 struct qeth_hdr_osn osn; 315 } hdr; 316 } __attribute__ ((packed)); 317 318 /*TCP Segmentation Offload header*/ 319 struct qeth_hdr_ext_tso { 320 __u16 hdr_tot_len; 321 __u8 imb_hdr_no; 322 __u8 reserved; 323 __u8 hdr_type; 324 __u8 hdr_version; 325 __u16 hdr_len; 326 __u32 payload_len; 327 __u16 mss; 328 __u16 dg_hdr_len; 329 __u8 padding[16]; 330 } __attribute__ ((packed)); 331 332 struct qeth_hdr_tso { 333 struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ 334 struct qeth_hdr_ext_tso ext; 335 } __attribute__ ((packed)); 336 337 338 /* flags for qeth_hdr.flags */ 339 #define QETH_HDR_PASSTHRU 0x10 340 #define QETH_HDR_IPV6 0x80 341 #define QETH_HDR_CAST_MASK 0x07 342 enum qeth_cast_flags { 343 QETH_CAST_UNICAST = 0x06, 344 QETH_CAST_MULTICAST = 0x04, 345 QETH_CAST_BROADCAST = 0x05, 346 QETH_CAST_ANYCAST = 0x07, 347 QETH_CAST_NOCAST = 0x00, 348 }; 349 350 enum qeth_layer2_frame_flags { 351 QETH_LAYER2_FLAG_MULTICAST = 0x01, 352 QETH_LAYER2_FLAG_BROADCAST = 0x02, 353 QETH_LAYER2_FLAG_UNICAST = 0x04, 354 QETH_LAYER2_FLAG_VLAN = 0x10, 355 }; 356 357 enum qeth_header_ids { 358 QETH_HEADER_TYPE_LAYER3 = 0x01, 359 QETH_HEADER_TYPE_LAYER2 = 0x02, 360 QETH_HEADER_TYPE_L3_TSO = 0x03, 361 QETH_HEADER_TYPE_OSN = 0x04, 362 QETH_HEADER_TYPE_L2_TSO = 0x06, 363 }; 364 /* flags for qeth_hdr.ext_flags */ 365 #define QETH_HDR_EXT_VLAN_FRAME 0x01 366 #define QETH_HDR_EXT_TOKEN_ID 0x02 367 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 368 #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 369 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 370 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 371 #define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ 372 373 enum qeth_qdio_buffer_states { 374 /* 375 * inbound: read out by driver; owned by hardware in order to be filled 376 * outbound: owned by driver in order to be filled 377 */ 378 QETH_QDIO_BUF_EMPTY, 379 /* 380 * inbound: filled by hardware; owned by driver in order to be read out 381 * outbound: filled by driver; owned by hardware in order to be sent 382 */ 383 QETH_QDIO_BUF_PRIMED, 384 /* 385 * inbound: not applicable 386 * outbound: identified to be pending in TPQ 387 */ 388 QETH_QDIO_BUF_PENDING, 389 /* 390 * inbound: not applicable 391 * outbound: found in completion queue 392 */ 393 QETH_QDIO_BUF_IN_CQ, 394 /* 395 * inbound: not applicable 396 * outbound: handled via transfer pending / completion queue 397 */ 398 QETH_QDIO_BUF_HANDLED_DELAYED, 399 }; 400 401 enum qeth_qdio_info_states { 402 QETH_QDIO_UNINITIALIZED, 403 QETH_QDIO_ALLOCATED, 404 QETH_QDIO_ESTABLISHED, 405 QETH_QDIO_CLEANING 406 }; 407 408 struct qeth_buffer_pool_entry { 409 struct list_head list; 410 struct list_head init_list; 411 void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; 412 }; 413 414 struct qeth_qdio_buffer_pool { 415 struct list_head entry_list; 416 int buf_count; 417 }; 418 419 struct qeth_qdio_buffer { 420 struct qdio_buffer *buffer; 421 /* the buffer pool entry currently associated to this buffer */ 422 struct qeth_buffer_pool_entry *pool_entry; 423 struct sk_buff *rx_skb; 424 }; 425 426 struct qeth_qdio_q { 427 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 428 struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; 429 int next_buf_to_init; 430 }; 431 432 struct qeth_qdio_out_buffer { 433 struct qdio_buffer *buffer; 434 atomic_t state; 435 int next_element_to_fill; 436 struct sk_buff_head skb_list; 437 int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER]; 438 439 struct qeth_qdio_out_q *q; 440 struct qeth_qdio_out_buffer *next_pending; 441 }; 442 443 struct qeth_card; 444 445 enum qeth_out_q_states { 446 QETH_OUT_Q_UNLOCKED, 447 QETH_OUT_Q_LOCKED, 448 QETH_OUT_Q_LOCKED_FLUSH, 449 }; 450 451 #define QETH_CARD_STAT_ADD(_c, _stat, _val) ((_c)->stats._stat += (_val)) 452 #define QETH_CARD_STAT_INC(_c, _stat) QETH_CARD_STAT_ADD(_c, _stat, 1) 453 454 #define QETH_TXQ_STAT_ADD(_q, _stat, _val) ((_q)->stats._stat += (_val)) 455 #define QETH_TXQ_STAT_INC(_q, _stat) QETH_TXQ_STAT_ADD(_q, _stat, 1) 456 457 struct qeth_card_stats { 458 u64 rx_bufs; 459 u64 rx_skb_csum; 460 u64 rx_sg_skbs; 461 u64 rx_sg_frags; 462 u64 rx_sg_alloc_page; 463 464 /* rtnl_link_stats64 */ 465 u64 rx_packets; 466 u64 rx_bytes; 467 u64 rx_errors; 468 u64 rx_dropped; 469 u64 rx_multicast; 470 }; 471 472 struct qeth_out_q_stats { 473 u64 bufs; 474 u64 bufs_pack; 475 u64 buf_elements; 476 u64 skbs_pack; 477 u64 skbs_sg; 478 u64 skbs_csum; 479 u64 skbs_tso; 480 u64 skbs_linearized; 481 u64 skbs_linearized_fail; 482 u64 tso_bytes; 483 u64 packing_mode_switch; 484 u64 stopped; 485 486 /* rtnl_link_stats64 */ 487 u64 tx_packets; 488 u64 tx_bytes; 489 u64 tx_errors; 490 u64 tx_dropped; 491 }; 492 493 struct qeth_qdio_out_q { 494 struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; 495 struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q]; 496 struct qdio_outbuf_state *bufstates; /* convenience pointer */ 497 struct qeth_out_q_stats stats; 498 int queue_no; 499 struct qeth_card *card; 500 atomic_t state; 501 int do_pack; 502 /* 503 * index of buffer to be filled by driver; state EMPTY or PACKING 504 */ 505 int next_buf_to_fill; 506 /* 507 * number of buffers that are currently filled (PRIMED) 508 * -> these buffers are hardware-owned 509 */ 510 atomic_t used_buffers; 511 /* indicates whether PCI flag must be set (or if one is outstanding) */ 512 atomic_t set_pci_flags_count; 513 }; 514 515 static inline bool qeth_out_queue_is_full(struct qeth_qdio_out_q *queue) 516 { 517 return atomic_read(&queue->used_buffers) >= QDIO_MAX_BUFFERS_PER_Q; 518 } 519 520 struct qeth_qdio_info { 521 atomic_t state; 522 /* input */ 523 int no_in_queues; 524 struct qeth_qdio_q *in_q; 525 struct qeth_qdio_q *c_q; 526 struct qeth_qdio_buffer_pool in_buf_pool; 527 struct qeth_qdio_buffer_pool init_pool; 528 int in_buf_size; 529 530 /* output */ 531 int no_out_queues; 532 struct qeth_qdio_out_q *out_qs[QETH_MAX_QUEUES]; 533 struct qdio_outbuf_state *out_bufstates; 534 535 /* priority queueing */ 536 int do_prio_queueing; 537 int default_out_queue; 538 }; 539 540 /** 541 * buffer stuff for read channel 542 */ 543 #define QETH_CMD_BUFFER_NO 8 544 545 /** 546 * channel state machine 547 */ 548 enum qeth_channel_states { 549 CH_STATE_UP, 550 CH_STATE_DOWN, 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 }; 564 565 /** 566 * Protocol versions 567 */ 568 enum qeth_prot_versions { 569 QETH_PROT_IPV4 = 0x0004, 570 QETH_PROT_IPV6 = 0x0006, 571 }; 572 573 enum qeth_cmd_buffer_state { 574 BUF_STATE_FREE, 575 BUF_STATE_LOCKED, 576 }; 577 578 enum qeth_cq { 579 QETH_CQ_DISABLED = 0, 580 QETH_CQ_ENABLED = 1, 581 QETH_CQ_NOTAVAILABLE = 2, 582 }; 583 584 struct qeth_ipato { 585 bool enabled; 586 bool invert4; 587 bool invert6; 588 struct list_head entries; 589 }; 590 591 struct qeth_channel; 592 593 struct qeth_cmd_buffer { 594 enum qeth_cmd_buffer_state state; 595 struct qeth_channel *channel; 596 struct qeth_reply *reply; 597 long timeout; 598 unsigned char *data; 599 void (*finalize)(struct qeth_card *card, struct qeth_cmd_buffer *iob, 600 unsigned int length); 601 void (*callback)(struct qeth_card *card, struct qeth_channel *channel, 602 struct qeth_cmd_buffer *iob); 603 }; 604 605 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob) 606 { 607 return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 608 } 609 610 /** 611 * definition of a qeth channel, used for read and write 612 */ 613 struct qeth_channel { 614 enum qeth_channel_states state; 615 struct ccw1 *ccw; 616 spinlock_t iob_lock; 617 wait_queue_head_t wait_q; 618 struct ccw_device *ccwdev; 619 /*command buffer for control data*/ 620 struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; 621 atomic_t irq_pending; 622 int io_buf_no; 623 }; 624 625 static inline bool qeth_trylock_channel(struct qeth_channel *channel) 626 { 627 return atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0; 628 } 629 630 /** 631 * OSA card related definitions 632 */ 633 struct qeth_token { 634 __u32 issuer_rm_w; 635 __u32 issuer_rm_r; 636 __u32 cm_filter_w; 637 __u32 cm_filter_r; 638 __u32 cm_connection_w; 639 __u32 cm_connection_r; 640 __u32 ulp_filter_w; 641 __u32 ulp_filter_r; 642 __u32 ulp_connection_w; 643 __u32 ulp_connection_r; 644 }; 645 646 struct qeth_seqno { 647 __u32 trans_hdr; 648 __u32 pdu_hdr; 649 __u32 pdu_hdr_ack; 650 __u16 ipa; 651 __u32 pkt_seqno; 652 }; 653 654 struct qeth_reply { 655 struct list_head list; 656 struct completion received; 657 int (*callback)(struct qeth_card *, struct qeth_reply *, 658 unsigned long); 659 u32 seqno; 660 unsigned long offset; 661 int rc; 662 void *param; 663 refcount_t refcnt; 664 }; 665 666 struct qeth_card_blkt { 667 int time_total; 668 int inter_packet; 669 int inter_packet_jumbo; 670 }; 671 672 #define QETH_BROADCAST_WITH_ECHO 0x01 673 #define QETH_BROADCAST_WITHOUT_ECHO 0x02 674 #define QETH_LAYER2_MAC_REGISTERED 0x02 675 struct qeth_card_info { 676 unsigned short unit_addr2; 677 unsigned short cula; 678 unsigned short chpid; 679 __u16 func_level; 680 char mcl_level[QETH_MCL_LENGTH + 1]; 681 u8 open_when_online:1; 682 int guestlan; 683 int mac_bits; 684 enum qeth_card_types type; 685 enum qeth_link_types link_type; 686 int broadcast_capable; 687 int unique_id; 688 bool layer_enforced; 689 struct qeth_card_blkt blkt; 690 enum qeth_ipa_promisc_modes promisc_mode; 691 __u32 diagass_support; 692 __u32 hwtrap; 693 }; 694 695 enum qeth_discipline_id { 696 QETH_DISCIPLINE_UNDETERMINED = -1, 697 QETH_DISCIPLINE_LAYER3 = 0, 698 QETH_DISCIPLINE_LAYER2 = 1, 699 }; 700 701 struct qeth_card_options { 702 struct qeth_routing_info route4; 703 struct qeth_ipa_info ipa4; 704 struct qeth_ipa_info adp; /*Adapter parameters*/ 705 struct qeth_routing_info route6; 706 struct qeth_ipa_info ipa6; 707 struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */ 708 struct qeth_vnicc_info vnicc; /* VNICC options */ 709 int fake_broadcast; 710 enum qeth_discipline_id layer; 711 int rx_sg_cb; 712 enum qeth_ipa_isolation_modes isolation; 713 enum qeth_ipa_isolation_modes prev_isolation; 714 int sniffer; 715 enum qeth_cq cq; 716 char hsuid[9]; 717 }; 718 719 #define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2) 720 #define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3) 721 722 /* 723 * thread bits for qeth_card thread masks 724 */ 725 enum qeth_threads { 726 QETH_RECOVER_THREAD = 1, 727 }; 728 729 struct qeth_osn_info { 730 int (*assist_cb)(struct net_device *dev, void *data); 731 int (*data_cb)(struct sk_buff *skb); 732 }; 733 734 struct qeth_discipline { 735 const struct device_type *devtype; 736 int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done); 737 int (*recover)(void *ptr); 738 int (*setup) (struct ccwgroup_device *); 739 void (*remove) (struct ccwgroup_device *); 740 int (*set_online) (struct ccwgroup_device *); 741 int (*set_offline) (struct ccwgroup_device *); 742 int (*freeze)(struct ccwgroup_device *); 743 int (*thaw) (struct ccwgroup_device *); 744 int (*restore)(struct ccwgroup_device *); 745 int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd); 746 int (*control_event_handler)(struct qeth_card *card, 747 struct qeth_ipa_cmd *cmd); 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 qeth_card_stats stats; 787 struct qeth_card_info info; 788 struct qeth_token token; 789 struct qeth_seqno seqno; 790 struct qeth_card_options options; 791 792 struct workqueue_struct *event_wq; 793 struct workqueue_struct *cmd_wq; 794 wait_queue_head_t wait_q; 795 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 796 DECLARE_HASHTABLE(mac_htable, 4); 797 DECLARE_HASHTABLE(ip_htable, 4); 798 struct mutex ip_lock; 799 DECLARE_HASHTABLE(ip_mc_htable, 4); 800 struct work_struct rx_mode_work; 801 struct work_struct kernel_thread_starter; 802 spinlock_t thread_mask_lock; 803 unsigned long thread_start_mask; 804 unsigned long thread_allowed_mask; 805 unsigned long thread_running_mask; 806 struct qeth_ipato ipato; 807 struct list_head cmd_waiter_list; 808 /* QDIO buffer handling */ 809 struct qeth_qdio_info qdio; 810 int read_or_write_problem; 811 struct qeth_osn_info osn_info; 812 struct qeth_discipline *discipline; 813 atomic_t force_alloc_skb; 814 struct service_level qeth_service_level; 815 struct qdio_ssqd_desc ssqd; 816 debug_info_t *debug; 817 struct mutex conf_mutex; 818 struct mutex discipline_mutex; 819 struct napi_struct napi; 820 struct qeth_rx rx; 821 struct delayed_work buffer_reclaim_work; 822 int reclaim_index; 823 struct work_struct close_dev_work; 824 }; 825 826 static inline bool qeth_card_hw_is_reachable(struct qeth_card *card) 827 { 828 return card->state == CARD_STATE_SOFTSETUP; 829 } 830 831 struct qeth_trap_id { 832 __u16 lparnr; 833 char vmname[8]; 834 __u8 chpid; 835 __u8 ssid; 836 __u16 devno; 837 } __packed; 838 839 /*some helper functions*/ 840 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") 841 842 static inline bool qeth_netdev_is_registered(struct net_device *dev) 843 { 844 return dev->netdev_ops != NULL; 845 } 846 847 static inline u16 qeth_iqd_translate_txq(struct net_device *dev, u16 txq) 848 { 849 if (txq == QETH_IQD_MCAST_TXQ) 850 return dev->num_tx_queues - 1; 851 if (txq == dev->num_tx_queues - 1) 852 return QETH_IQD_MCAST_TXQ; 853 return txq; 854 } 855 856 static inline void qeth_scrub_qdio_buffer(struct qdio_buffer *buf, 857 unsigned int elements) 858 { 859 unsigned int i; 860 861 for (i = 0; i < elements; i++) 862 memset(&buf->element[i], 0, sizeof(struct qdio_buffer_element)); 863 buf->element[14].sflags = 0; 864 buf->element[15].sflags = 0; 865 } 866 867 /** 868 * qeth_get_elements_for_range() - find number of SBALEs to cover range. 869 * @start: Start of the address range. 870 * @end: Address after the end of the range. 871 * 872 * Returns the number of pages, and thus QDIO buffer elements, needed to cover 873 * the specified address range. 874 */ 875 static inline int qeth_get_elements_for_range(addr_t start, addr_t end) 876 { 877 return PFN_UP(end) - PFN_DOWN(start); 878 } 879 880 static inline int qeth_get_ip_version(struct sk_buff *skb) 881 { 882 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 883 __be16 prot = veth->h_vlan_proto; 884 885 if (prot == htons(ETH_P_8021Q)) 886 prot = veth->h_vlan_encapsulated_proto; 887 888 switch (prot) { 889 case htons(ETH_P_IPV6): 890 return 6; 891 case htons(ETH_P_IP): 892 return 4; 893 default: 894 return 0; 895 } 896 } 897 898 static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, 899 u8 flags) 900 { 901 if ((card->dev->features & NETIF_F_RXCSUM) && 902 (flags & QETH_HDR_EXT_CSUM_TRANSP_REQ)) { 903 skb->ip_summed = CHECKSUM_UNNECESSARY; 904 QETH_CARD_STAT_INC(card, rx_skb_csum); 905 } else { 906 skb->ip_summed = CHECKSUM_NONE; 907 } 908 } 909 910 static inline void qeth_tx_csum(struct sk_buff *skb, u8 *flags, int ipv) 911 { 912 *flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; 913 if ((ipv == 4 && ip_hdr(skb)->protocol == IPPROTO_UDP) || 914 (ipv == 6 && ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) 915 *flags |= QETH_HDR_EXT_UDP; 916 } 917 918 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, 919 struct qeth_buffer_pool_entry *entry) 920 { 921 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 922 } 923 924 static inline int qeth_is_diagass_supported(struct qeth_card *card, 925 enum qeth_diags_cmds cmd) 926 { 927 return card->info.diagass_support & (__u32)cmd; 928 } 929 930 int qeth_send_simple_setassparms_prot(struct qeth_card *card, 931 enum qeth_ipa_funcs ipa_func, 932 u16 cmd_code, long data, 933 enum qeth_prot_versions prot); 934 /* IPv4 variant */ 935 static inline int qeth_send_simple_setassparms(struct qeth_card *card, 936 enum qeth_ipa_funcs ipa_func, 937 u16 cmd_code, long data) 938 { 939 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 940 data, QETH_PROT_IPV4); 941 } 942 943 static inline int qeth_send_simple_setassparms_v6(struct qeth_card *card, 944 enum qeth_ipa_funcs ipa_func, 945 u16 cmd_code, long data) 946 { 947 return qeth_send_simple_setassparms_prot(card, ipa_func, cmd_code, 948 data, QETH_PROT_IPV6); 949 } 950 951 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb); 952 953 extern struct qeth_discipline qeth_l2_discipline; 954 extern struct qeth_discipline qeth_l3_discipline; 955 extern const struct ethtool_ops qeth_ethtool_ops; 956 extern const struct ethtool_ops qeth_osn_ethtool_ops; 957 extern const struct attribute_group *qeth_generic_attr_groups[]; 958 extern const struct attribute_group *qeth_osn_attr_groups[]; 959 extern const struct attribute_group qeth_device_attr_group; 960 extern const struct attribute_group qeth_device_blkt_group; 961 extern const struct device_type qeth_generic_devtype; 962 963 const char *qeth_get_cardname_short(struct qeth_card *); 964 int qeth_realloc_buffer_pool(struct qeth_card *, int); 965 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); 966 void qeth_core_free_discipline(struct qeth_card *); 967 968 /* exports for qeth discipline device drivers */ 969 extern struct kmem_cache *qeth_core_header_cache; 970 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; 971 972 struct net_device *qeth_clone_netdev(struct net_device *orig); 973 struct qeth_card *qeth_get_card_by_busid(char *bus_id); 974 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); 975 int qeth_threads_running(struct qeth_card *, unsigned long); 976 int qeth_do_run_thread(struct qeth_card *, unsigned long); 977 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); 978 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); 979 int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok); 980 void qeth_print_status_message(struct qeth_card *); 981 int qeth_init_qdio_queues(struct qeth_card *); 982 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, 983 int (*reply_cb) 984 (struct qeth_card *, struct qeth_reply *, unsigned long), 985 void *); 986 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, 987 enum qeth_ipa_cmds, enum qeth_prot_versions); 988 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, 989 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *, 990 struct qeth_hdr **); 991 void qeth_schedule_recovery(struct qeth_card *); 992 int qeth_poll(struct napi_struct *napi, int budget); 993 void qeth_clear_ipacmd_list(struct qeth_card *); 994 int qeth_qdio_clear_card(struct qeth_card *, int); 995 void qeth_clear_working_pool_list(struct qeth_card *); 996 void qeth_clear_cmd_buffers(struct qeth_channel *); 997 void qeth_drain_output_queues(struct qeth_card *card); 998 void qeth_setadp_promisc_mode(struct qeth_card *); 999 int qeth_setadpparms_change_macaddr(struct qeth_card *); 1000 void qeth_tx_timeout(struct net_device *); 1001 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); 1002 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 1003 u16 cmd_length); 1004 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); 1005 int qeth_query_switch_attributes(struct qeth_card *card, 1006 struct qeth_switch_info *sw_info); 1007 int qeth_query_card_info(struct qeth_card *card, 1008 struct carrier_info *carrier_info); 1009 unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset); 1010 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 1011 struct sk_buff *skb, struct qeth_hdr *hdr, 1012 unsigned int offset, unsigned int hd_len, 1013 int elements_needed); 1014 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 1015 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...); 1016 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback); 1017 int qeth_configure_cq(struct qeth_card *, enum qeth_cq); 1018 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action); 1019 void qeth_trace_features(struct qeth_card *); 1020 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long); 1021 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *, 1022 enum qeth_ipa_funcs, 1023 __u16, __u16, 1024 enum qeth_prot_versions); 1025 int qeth_set_features(struct net_device *, netdev_features_t); 1026 void qeth_enable_hw_features(struct net_device *dev); 1027 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t); 1028 netdev_features_t qeth_features_check(struct sk_buff *skb, 1029 struct net_device *dev, 1030 netdev_features_t features); 1031 void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); 1032 u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, 1033 u8 cast_type, struct net_device *sb_dev); 1034 int qeth_open(struct net_device *dev); 1035 int qeth_stop(struct net_device *dev); 1036 1037 int qeth_vm_request_mac(struct qeth_card *card); 1038 int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 1039 struct qeth_qdio_out_q *queue, int ipv, int cast_type, 1040 void (*fill_header)(struct qeth_qdio_out_q *queue, 1041 struct qeth_hdr *hdr, struct sk_buff *skb, 1042 int ipv, int cast_type, 1043 unsigned int data_len)); 1044 1045 /* exports for OSN */ 1046 int qeth_osn_assist(struct net_device *, void *, int); 1047 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, 1048 int (*assist_cb)(struct net_device *, void *), 1049 int (*data_cb)(struct sk_buff *)); 1050 void qeth_osn_deregister(struct net_device *); 1051 1052 #endif /* __QETH_CORE_H__ */ 1053