drivers/s390/net/qeth_core.h

   1 /*
   2  *  drivers/s390/net/qeth_core.h
   3  *
   4  *    Copyright IBM Corp. 2007
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #ifndef __QETH_CORE_H__
  12 #define __QETH_CORE_H__
  13
  14 #include <linux/if.h>
  15 #include <linux/if_arp.h>
  16 #include <linux/if_tr.h>
  17 #include <linux/trdevice.h>
  18 #include <linux/etherdevice.h>
  19 #include <linux/if_vlan.h>
  20 #include <linux/ctype.h>
  21 #include <linux/in6.h>
  22 #include <linux/bitops.h>
  23 #include <linux/seq_file.h>
  24 #include <linux/ethtool.h>
  25
  26 #include <net/ipv6.h>
  27 #include <net/if_inet6.h>
  28 #include <net/addrconf.h>
  29
  30 #include <asm/debug.h>
  31 #include <asm/qdio.h>
  32 #include <asm/ccwdev.h>
  33 #include <asm/ccwgroup.h>
  34
  35 #include "qeth_core_mpc.h"
  36
  37 #define KMSG_COMPONENT "qeth"
  38
  39 /**
  40  * Debug Facility stuff
  41  */
  42 enum qeth_dbf_names {
  43         QETH_DBF_SETUP,
  44         QETH_DBF_QERR,
  45         QETH_DBF_TRACE,
  46         QETH_DBF_MSG,
  47         QETH_DBF_SENSE,
  48         QETH_DBF_MISC,
  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_##name, level, text)
  76
  77 /**
  78  * some more debug stuff
  79  */
  80 #define PRINTK_HEADER   "qeth: "
  81
  82 #define SENSE_COMMAND_REJECT_BYTE 0
  83 #define SENSE_COMMAND_REJECT_FLAG 0x80
  84 #define SENSE_RESETTING_EVENT_BYTE 1
  85 #define SENSE_RESETTING_EVENT_FLAG 0x80
  86
  87 /*
  88  * Common IO related definitions
  89  */
  90 #define CARD_RDEV(card) card->read.ccwdev
  91 #define CARD_WDEV(card) card->write.ccwdev
  92 #define CARD_DDEV(card) card->data.ccwdev
  93 #define CARD_BUS_ID(card) card->gdev->dev.bus_id
  94 #define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id
  95 #define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id
  96 #define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id
  97 #define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id
  98
  99 /**
 100  * card stuff
 101  */
 102 struct qeth_perf_stats {
 103         unsigned int bufs_rec;
 104         unsigned int bufs_sent;
 105
 106         unsigned int skbs_sent_pack;
 107         unsigned int bufs_sent_pack;
 108
 109         unsigned int sc_dp_p;
 110         unsigned int sc_p_dp;
 111         /* qdio_input_handler: number of times called, time spent in */
 112         __u64 inbound_start_time;
 113         unsigned int inbound_cnt;
 114         unsigned int inbound_time;
 115         /* qeth_send_packet: number of times called, time spent in */
 116         __u64 outbound_start_time;
 117         unsigned int outbound_cnt;
 118         unsigned int outbound_time;
 119         /* qdio_output_handler: number of times called, time spent in */
 120         __u64 outbound_handler_start_time;
 121         unsigned int outbound_handler_cnt;
 122         unsigned int outbound_handler_time;
 123         /* number of calls to and time spent in do_QDIO for inbound queue */
 124         __u64 inbound_do_qdio_start_time;
 125         unsigned int inbound_do_qdio_cnt;
 126         unsigned int inbound_do_qdio_time;
 127         /* number of calls to and time spent in do_QDIO for outbound queues */
 128         __u64 outbound_do_qdio_start_time;
 129         unsigned int outbound_do_qdio_cnt;
 130         unsigned int outbound_do_qdio_time;
 131         /* eddp data */
 132         unsigned int large_send_bytes;
 133         unsigned int large_send_cnt;
 134         unsigned int sg_skbs_sent;
 135         unsigned int sg_frags_sent;
 136         /* initial values when measuring starts */
 137         unsigned long initial_rx_packets;
 138         unsigned long initial_tx_packets;
 139         /* inbound scatter gather data */
 140         unsigned int sg_skbs_rx;
 141         unsigned int sg_frags_rx;
 142         unsigned int sg_alloc_page_rx;
 143 };
 144
 145 /* Routing stuff */
 146 struct qeth_routing_info {
 147         enum qeth_routing_types type;
 148 };
 149
 150 /* IPA stuff */
 151 struct qeth_ipa_info {
 152         __u32 supported_funcs;
 153         __u32 enabled_funcs;
 154 };
 155
 156 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 157                 enum qeth_ipa_funcs func)
 158 {
 159         return (ipa->supported_funcs & func);
 160 }
 161
 162 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 163                 enum qeth_ipa_funcs func)
 164 {
 165         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 166 }
 167
 168 #define qeth_adp_supported(c, f) \
 169         qeth_is_ipa_supported(&c->options.adp, f)
 170 #define qeth_adp_enabled(c, f) \
 171         qeth_is_ipa_enabled(&c->options.adp, f)
 172 #define qeth_is_supported(c, f) \
 173         qeth_is_ipa_supported(&c->options.ipa4, f)
 174 #define qeth_is_enabled(c, f) \
 175         qeth_is_ipa_enabled(&c->options.ipa4, f)
 176 #define qeth_is_supported6(c, f) \
 177         qeth_is_ipa_supported(&c->options.ipa6, f)
 178 #define qeth_is_enabled6(c, f) \
 179         qeth_is_ipa_enabled(&c->options.ipa6, f)
 180 #define qeth_is_ipafunc_supported(c, prot, f) \
 181          ((prot == QETH_PROT_IPV6) ? \
 182                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 183 #define qeth_is_ipafunc_enabled(c, prot, f) \
 184          ((prot == QETH_PROT_IPV6) ? \
 185                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 186
 187 #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
 188 #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
 189 #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
 190 #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
 191
 192 #define QETH_MODELLIST_ARRAY \
 193         {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \
 194         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 195         QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 196         QETH_MAX_QUEUES, 0}, \
 197         {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \
 198         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
 199         QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
 200         QETH_MAX_QUEUES, 0x103}, \
 201         {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \
 202         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 203         QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 204         QETH_MAX_QUEUES, 0}, \
 205         {0, 0, 0, 0, 0, 0, 0, 0, 0} }
 206
 207 #define QETH_REAL_CARD          1
 208 #define QETH_VLAN_CARD          2
 209 #define QETH_BUFSIZE            4096
 210
 211 /**
 212  * some more defs
 213  */
 214 #define QETH_TX_TIMEOUT         100 * HZ
 215 #define QETH_RCD_TIMEOUT        60 * HZ
 216 #define QETH_HEADER_SIZE        32
 217 #define QETH_MAX_PORTNO         15
 218
 219 /*IPv6 address autoconfiguration stuff*/
 220 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 221 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 222
 223 /*****************************************************************************/
 224 /* QDIO queue and buffer handling                                            */
 225 /*****************************************************************************/
 226 #define QETH_MAX_QUEUES 4
 227 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 228 #define QETH_IN_BUF_COUNT_DEFAULT 16
 229 #define QETH_IN_BUF_COUNT_MIN 8
 230 #define QETH_IN_BUF_COUNT_MAX 128
 231 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 232 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 233                 ((card)->qdio.in_buf_pool.buf_count / 2)
 234
 235 /* buffers we have to be behind before we get a PCI */
 236 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 237 /*enqueued free buffers left before we get a PCI*/
 238 #define QETH_PCI_THRESHOLD_B(card) 0
 239 /*not used unless the microcode gets patched*/
 240 #define QETH_PCI_TIMER_VALUE(card) 3
 241
 242 /* priority queing */
 243 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 244 #define QETH_DEFAULT_QUEUE    2
 245 #define QETH_NO_PRIO_QUEUEING 0
 246 #define QETH_PRIO_Q_ING_PREC  1
 247 #define QETH_PRIO_Q_ING_TOS   2
 248 #define IP_TOS_LOWDELAY 0x10
 249 #define IP_TOS_HIGHTHROUGHPUT 0x08
 250 #define IP_TOS_HIGHRELIABILITY 0x04
 251 #define IP_TOS_NOTIMPORTANT 0x02
 252
 253 /* Packing */
 254 #define QETH_LOW_WATERMARK_PACK  2
 255 #define QETH_HIGH_WATERMARK_PACK 5
 256 #define QETH_WATERMARK_PACK_FUZZ 1
 257
 258 #define QETH_IP_HEADER_SIZE 40
 259
 260 /* large receive scatter gather copy break */
 261 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 262
 263 struct qeth_hdr_layer3 {
 264         __u8  id;
 265         __u8  flags;
 266         __u16 inbound_checksum; /*TSO:__u16 seqno */
 267         __u32 token;            /*TSO: __u32 reserved */
 268         __u16 length;
 269         __u8  vlan_prio;
 270         __u8  ext_flags;
 271         __u16 vlan_id;
 272         __u16 frame_offset;
 273         __u8  dest_addr[16];
 274 } __attribute__ ((packed));
 275
 276 struct qeth_hdr_layer2 {
 277         __u8 id;
 278         __u8 flags[3];
 279         __u8 port_no;
 280         __u8 hdr_length;
 281         __u16 pkt_length;
 282         __u16 seq_no;
 283         __u16 vlan_id;
 284         __u32 reserved;
 285         __u8 reserved2[16];
 286 } __attribute__ ((packed));
 287
 288 struct qeth_hdr_osn {
 289         __u8 id;
 290         __u8 reserved;
 291         __u16 seq_no;
 292         __u16 reserved2;
 293         __u16 control_flags;
 294         __u16 pdu_length;
 295         __u8 reserved3[18];
 296         __u32 ccid;
 297 } __attribute__ ((packed));
 298
 299 struct qeth_hdr {
 300         union {
 301                 struct qeth_hdr_layer2 l2;
 302                 struct qeth_hdr_layer3 l3;
 303                 struct qeth_hdr_osn    osn;
 304         } hdr;
 305 } __attribute__ ((packed));
 306
 307 /*TCP Segmentation Offload header*/
 308 struct qeth_hdr_ext_tso {
 309         __u16 hdr_tot_len;
 310         __u8  imb_hdr_no;
 311         __u8  reserved;
 312         __u8  hdr_type;
 313         __u8  hdr_version;
 314         __u16 hdr_len;
 315         __u32 payload_len;
 316         __u16 mss;
 317         __u16 dg_hdr_len;
 318         __u8  padding[16];
 319 } __attribute__ ((packed));
 320
 321 struct qeth_hdr_tso {
 322         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 323         struct qeth_hdr_ext_tso ext;
 324 } __attribute__ ((packed));
 325
 326
 327 /* flags for qeth_hdr.flags */
 328 #define QETH_HDR_PASSTHRU 0x10
 329 #define QETH_HDR_IPV6     0x80
 330 #define QETH_HDR_CAST_MASK 0x07
 331 enum qeth_cast_flags {
 332         QETH_CAST_UNICAST   = 0x06,
 333         QETH_CAST_MULTICAST = 0x04,
 334         QETH_CAST_BROADCAST = 0x05,
 335         QETH_CAST_ANYCAST   = 0x07,
 336         QETH_CAST_NOCAST    = 0x00,
 337 };
 338
 339 enum qeth_layer2_frame_flags {
 340         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 341         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 342         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 343         QETH_LAYER2_FLAG_VLAN      = 0x10,
 344 };
 345
 346 enum qeth_header_ids {
 347         QETH_HEADER_TYPE_LAYER3 = 0x01,
 348         QETH_HEADER_TYPE_LAYER2 = 0x02,
 349         QETH_HEADER_TYPE_TSO    = 0x03,
 350         QETH_HEADER_TYPE_OSN    = 0x04,
 351 };
 352 /* flags for qeth_hdr.ext_flags */
 353 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 354 #define QETH_HDR_EXT_TOKEN_ID         0x02
 355 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 356 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 357 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 358 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 359 #define QETH_HDR_EXT_UDP_TSO          0x40 /*bit off for TCP*/
 360
 361 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 362 {
 363         return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
 364 }
 365
 366 enum qeth_qdio_buffer_states {
 367         /*
 368          * inbound: read out by driver; owned by hardware in order to be filled
 369          * outbound: owned by driver in order to be filled
 370          */
 371         QETH_QDIO_BUF_EMPTY,
 372         /*
 373          * inbound: filled by hardware; owned by driver in order to be read out
 374          * outbound: filled by driver; owned by hardware in order to be sent
 375          */
 376         QETH_QDIO_BUF_PRIMED,
 377 };
 378
 379 enum qeth_qdio_info_states {
 380         QETH_QDIO_UNINITIALIZED,
 381         QETH_QDIO_ALLOCATED,
 382         QETH_QDIO_ESTABLISHED,
 383         QETH_QDIO_CLEANING
 384 };
 385
 386 struct qeth_buffer_pool_entry {
 387         struct list_head list;
 388         struct list_head init_list;
 389         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 390 };
 391
 392 struct qeth_qdio_buffer_pool {
 393         struct list_head entry_list;
 394         int buf_count;
 395 };
 396
 397 struct qeth_qdio_buffer {
 398         struct qdio_buffer *buffer;
 399         /* the buffer pool entry currently associated to this buffer */
 400         struct qeth_buffer_pool_entry *pool_entry;
 401 };
 402
 403 struct qeth_qdio_q {
 404         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 405         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 406         int next_buf_to_init;
 407 } __attribute__ ((aligned(256)));
 408
 409 /* possible types of qeth large_send support */
 410 enum qeth_large_send_types {
 411         QETH_LARGE_SEND_NO,
 412         QETH_LARGE_SEND_EDDP,
 413         QETH_LARGE_SEND_TSO,
 414 };
 415
 416 struct qeth_qdio_out_buffer {
 417         struct qdio_buffer *buffer;
 418         atomic_t state;
 419         int next_element_to_fill;
 420         struct sk_buff_head skb_list;
 421         struct list_head ctx_list;
 422         int is_header[16];
 423 };
 424
 425 struct qeth_card;
 426
 427 enum qeth_out_q_states {
 428        QETH_OUT_Q_UNLOCKED,
 429        QETH_OUT_Q_LOCKED,
 430        QETH_OUT_Q_LOCKED_FLUSH,
 431 };
 432
 433 struct qeth_qdio_out_q {
 434         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 435         struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 436         int queue_no;
 437         struct qeth_card *card;
 438         atomic_t state;
 439         int do_pack;
 440         /*
 441          * index of buffer to be filled by driver; state EMPTY or PACKING
 442          */
 443         int next_buf_to_fill;
 444         /*
 445          * number of buffers that are currently filled (PRIMED)
 446          * -> these buffers are hardware-owned
 447          */
 448         atomic_t used_buffers;
 449         /* indicates whether PCI flag must be set (or if one is outstanding) */
 450         atomic_t set_pci_flags_count;
 451 } __attribute__ ((aligned(256)));
 452
 453 struct qeth_qdio_info {
 454         atomic_t state;
 455         /* input */
 456         struct qeth_qdio_q *in_q;
 457         struct qeth_qdio_buffer_pool in_buf_pool;
 458         struct qeth_qdio_buffer_pool init_pool;
 459         int in_buf_size;
 460
 461         /* output */
 462         int no_out_queues;
 463         struct qeth_qdio_out_q **out_qs;
 464
 465         /* priority queueing */
 466         int do_prio_queueing;
 467         int default_out_queue;
 468 };
 469
 470 enum qeth_send_errors {
 471         QETH_SEND_ERROR_NONE,
 472         QETH_SEND_ERROR_LINK_FAILURE,
 473         QETH_SEND_ERROR_RETRY,
 474         QETH_SEND_ERROR_KICK_IT,
 475 };
 476
 477 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 478 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 479 /* tr mc mac is longer, but that will be enough to detect mc frames */
 480 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 481 #define QETH_TR_MAC_C        0x0300 /* canonical */
 482
 483 #define DEFAULT_ADD_HHLEN 0
 484 #define MAX_ADD_HHLEN 1024
 485
 486 /**
 487  * buffer stuff for read channel
 488  */
 489 #define QETH_CMD_BUFFER_NO      8
 490
 491 /**
 492  *  channel state machine
 493  */
 494 enum qeth_channel_states {
 495         CH_STATE_UP,
 496         CH_STATE_DOWN,
 497         CH_STATE_ACTIVATING,
 498         CH_STATE_HALTED,
 499         CH_STATE_STOPPED,
 500         CH_STATE_RCD,
 501         CH_STATE_RCD_DONE,
 502 };
 503 /**
 504  * card state machine
 505  */
 506 enum qeth_card_states {
 507         CARD_STATE_DOWN,
 508         CARD_STATE_HARDSETUP,
 509         CARD_STATE_SOFTSETUP,
 510         CARD_STATE_UP,
 511         CARD_STATE_RECOVER,
 512 };
 513
 514 /**
 515  * Protocol versions
 516  */
 517 enum qeth_prot_versions {
 518         QETH_PROT_IPV4 = 0x0004,
 519         QETH_PROT_IPV6 = 0x0006,
 520 };
 521
 522 enum qeth_ip_types {
 523         QETH_IP_TYPE_NORMAL,
 524         QETH_IP_TYPE_VIPA,
 525         QETH_IP_TYPE_RXIP,
 526         QETH_IP_TYPE_DEL_ALL_MC,
 527 };
 528
 529 enum qeth_cmd_buffer_state {
 530         BUF_STATE_FREE,
 531         BUF_STATE_LOCKED,
 532         BUF_STATE_PROCESSED,
 533 };
 534
 535 struct qeth_ipato {
 536         int enabled;
 537         int invert4;
 538         int invert6;
 539         struct list_head entries;
 540 };
 541
 542 struct qeth_channel;
 543
 544 struct qeth_cmd_buffer {
 545         enum qeth_cmd_buffer_state state;
 546         struct qeth_channel *channel;
 547         unsigned char *data;
 548         int rc;
 549         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 550 };
 551
 552 /**
 553  * definition of a qeth channel, used for read and write
 554  */
 555 struct qeth_channel {
 556         enum qeth_channel_states state;
 557         struct ccw1 ccw;
 558         spinlock_t iob_lock;
 559         wait_queue_head_t wait_q;
 560         struct tasklet_struct irq_tasklet;
 561         struct ccw_device *ccwdev;
 562 /*command buffer for control data*/
 563         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 564         atomic_t irq_pending;
 565         int io_buf_no;
 566         int buf_no;
 567 };
 568
 569 /**
 570  *  OSA card related definitions
 571  */
 572 struct qeth_token {
 573         __u32 issuer_rm_w;
 574         __u32 issuer_rm_r;
 575         __u32 cm_filter_w;
 576         __u32 cm_filter_r;
 577         __u32 cm_connection_w;
 578         __u32 cm_connection_r;
 579         __u32 ulp_filter_w;
 580         __u32 ulp_filter_r;
 581         __u32 ulp_connection_w;
 582         __u32 ulp_connection_r;
 583 };
 584
 585 struct qeth_seqno {
 586         __u32 trans_hdr;
 587         __u32 pdu_hdr;
 588         __u32 pdu_hdr_ack;
 589         __u16 ipa;
 590         __u32 pkt_seqno;
 591 };
 592
 593 struct qeth_reply {
 594         struct list_head list;
 595         wait_queue_head_t wait_q;
 596         int (*callback)(struct qeth_card *, struct qeth_reply *,
 597                 unsigned long);
 598         u32 seqno;
 599         unsigned long offset;
 600         atomic_t received;
 601         int rc;
 602         void *param;
 603         struct qeth_card *card;
 604         atomic_t refcnt;
 605 };
 606
 607
 608 struct qeth_card_blkt {
 609         int time_total;
 610         int inter_packet;
 611         int inter_packet_jumbo;
 612 };
 613
 614 #define QETH_BROADCAST_WITH_ECHO    0x01
 615 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 616 #define QETH_LAYER2_MAC_READ        0x01
 617 #define QETH_LAYER2_MAC_REGISTERED  0x02
 618 struct qeth_card_info {
 619         unsigned short unit_addr2;
 620         unsigned short cula;
 621         unsigned short chpid;
 622         __u16 func_level;
 623         char mcl_level[QETH_MCL_LENGTH + 1];
 624         int guestlan;
 625         int mac_bits;
 626         int portname_required;
 627         int portno;
 628         char portname[9];
 629         enum qeth_card_types type;
 630         enum qeth_link_types link_type;
 631         int is_multicast_different;
 632         int initial_mtu;
 633         int max_mtu;
 634         int broadcast_capable;
 635         int unique_id;
 636         struct qeth_card_blkt blkt;
 637         __u32 csum_mask;
 638         enum qeth_ipa_promisc_modes promisc_mode;
 639 };
 640
 641 struct qeth_card_options {
 642         struct qeth_routing_info route4;
 643         struct qeth_ipa_info ipa4;
 644         struct qeth_ipa_info adp; /*Adapter parameters*/
 645         struct qeth_routing_info route6;
 646         struct qeth_ipa_info ipa6;
 647         enum qeth_checksum_types checksum_type;
 648         int broadcast_mode;
 649         int macaddr_mode;
 650         int fake_broadcast;
 651         int add_hhlen;
 652         int fake_ll;
 653         int layer2;
 654         enum qeth_large_send_types large_send;
 655         int performance_stats;
 656         int rx_sg_cb;
 657 };
 658
 659 /*
 660  * thread bits for qeth_card thread masks
 661  */
 662 enum qeth_threads {
 663         QETH_RECOVER_THREAD = 1,
 664 };
 665
 666 struct qeth_osn_info {
 667         int (*assist_cb)(struct net_device *dev, void *data);
 668         int (*data_cb)(struct sk_buff *skb);
 669 };
 670
 671 enum qeth_discipline_id {
 672         QETH_DISCIPLINE_LAYER3 = 0,
 673         QETH_DISCIPLINE_LAYER2 = 1,
 674 };
 675
 676 struct qeth_discipline {
 677         qdio_handler_t *input_handler;
 678         qdio_handler_t *output_handler;
 679         int (*recover)(void *ptr);
 680         struct ccwgroup_driver *ccwgdriver;
 681 };
 682
 683 struct qeth_vlan_vid {
 684         struct list_head list;
 685         unsigned short vid;
 686 };
 687
 688 struct qeth_mc_mac {
 689         struct list_head list;
 690         __u8 mc_addr[MAX_ADDR_LEN];
 691         unsigned char mc_addrlen;
 692 };
 693
 694 struct qeth_card {
 695         struct list_head list;
 696         enum qeth_card_states state;
 697         int lan_online;
 698         spinlock_t lock;
 699         struct ccwgroup_device *gdev;
 700         struct qeth_channel read;
 701         struct qeth_channel write;
 702         struct qeth_channel data;
 703
 704         struct net_device *dev;
 705         struct net_device_stats stats;
 706
 707         struct qeth_card_info info;
 708         struct qeth_token token;
 709         struct qeth_seqno seqno;
 710         struct qeth_card_options options;
 711
 712         wait_queue_head_t wait_q;
 713         spinlock_t vlanlock;
 714         spinlock_t mclock;
 715         struct vlan_group *vlangrp;
 716         struct list_head vid_list;
 717         struct list_head mc_list;
 718         struct work_struct kernel_thread_starter;
 719         spinlock_t thread_mask_lock;
 720         unsigned long thread_start_mask;
 721         unsigned long thread_allowed_mask;
 722         unsigned long thread_running_mask;
 723         spinlock_t ip_lock;
 724         struct list_head ip_list;
 725         struct list_head *ip_tbd_list;
 726         struct qeth_ipato ipato;
 727         struct list_head cmd_waiter_list;
 728         /* QDIO buffer handling */
 729         struct qeth_qdio_info qdio;
 730         struct qeth_perf_stats perf_stats;
 731         int use_hard_stop;
 732         struct qeth_osn_info osn_info;
 733         struct qeth_discipline discipline;
 734         atomic_t force_alloc_skb;
 735 };
 736
 737 struct qeth_card_list_struct {
 738         struct list_head list;
 739         rwlock_t rwlock;
 740 };
 741
 742 /*some helper functions*/
 743 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 744
 745 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 746 {
 747         struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 748                 dev_get_drvdata(&cdev->dev))->dev);
 749         return card;
 750 }
 751
 752 static inline int qeth_get_micros(void)
 753 {
 754         return (int) (get_clock() >> 12);
 755 }
 756
 757 static inline int qeth_get_ip_version(struct sk_buff *skb)
 758 {
 759         switch (skb->protocol) {
 760         case ETH_P_IPV6:
 761                 return 6;
 762         case ETH_P_IP:
 763                 return 4;
 764         default:
 765                 return 0;
 766         }
 767 }
 768
 769 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 770                 struct qeth_buffer_pool_entry *entry)
 771 {
 772         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 773 }
 774
 775 struct qeth_eddp_context;
 776 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
 777 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
 778 const char *qeth_get_cardname_short(struct qeth_card *);
 779 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 780 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 781 void qeth_core_free_discipline(struct qeth_card *);
 782 int qeth_core_create_device_attributes(struct device *);
 783 void qeth_core_remove_device_attributes(struct device *);
 784 int qeth_core_create_osn_attributes(struct device *);
 785 void qeth_core_remove_osn_attributes(struct device *);
 786
 787 /* exports for qeth discipline device drivers */
 788 extern struct qeth_card_list_struct qeth_core_card_list;
 789 extern struct kmem_cache *qeth_core_header_cache;
 790 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 791
 792 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 793 int qeth_threads_running(struct qeth_card *, unsigned long);
 794 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 795 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 796 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 797 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 798 int qeth_core_hardsetup_card(struct qeth_card *);
 799 void qeth_print_status_message(struct qeth_card *);
 800 int qeth_init_qdio_queues(struct qeth_card *);
 801 int qeth_send_startlan(struct qeth_card *);
 802 int qeth_send_stoplan(struct qeth_card *);
 803 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 804                   int (*reply_cb)
 805                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 806                   void *);
 807 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 808                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 809 int qeth_query_setadapterparms(struct qeth_card *);
 810 int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *);
 811 void qeth_queue_input_buffer(struct qeth_card *, int);
 812 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 813                 struct qdio_buffer *, struct qdio_buffer_element **, int *,
 814                 struct qeth_hdr **);
 815 void qeth_schedule_recovery(struct qeth_card *);
 816 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 817                         int, int, int, unsigned long);
 818 void qeth_clear_ipacmd_list(struct qeth_card *);
 819 int qeth_qdio_clear_card(struct qeth_card *, int);
 820 void qeth_clear_working_pool_list(struct qeth_card *);
 821 void qeth_clear_cmd_buffers(struct qeth_channel *);
 822 void qeth_clear_qdio_buffers(struct qeth_card *);
 823 void qeth_setadp_promisc_mode(struct qeth_card *);
 824 struct net_device_stats *qeth_get_stats(struct net_device *);
 825 int qeth_change_mtu(struct net_device *, int);
 826 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 827 void qeth_tx_timeout(struct net_device *);
 828 void qeth_prepare_control_data(struct qeth_card *, int,
 829                                 struct qeth_cmd_buffer *);
 830 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 831 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 832 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 833 int qeth_mdio_read(struct net_device *, int, int);
 834 int qeth_snmp_command(struct qeth_card *, char __user *);
 835 int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);
 836 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
 837 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
 838                                         unsigned long);
 839 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 840         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 841         void *reply_param);
 842 int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
 843 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 844 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
 845 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 846                         struct sk_buff *, struct qeth_hdr *, int,
 847                         struct qeth_eddp_context *, int, int);
 848 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 849                     struct sk_buff *, struct qeth_hdr *,
 850                     int, struct qeth_eddp_context *);
 851 int qeth_core_get_stats_count(struct net_device *);
 852 void qeth_core_get_ethtool_stats(struct net_device *,
 853                                 struct ethtool_stats *, u64 *);
 854 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 855 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 856 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...);
 857 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 858
 859 /* exports for OSN */
 860 int qeth_osn_assist(struct net_device *, void *, int);
 861 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 862                 int (*assist_cb)(struct net_device *, void *),
 863                 int (*data_cb)(struct sk_buff *));
 864 void qeth_osn_deregister(struct net_device *);
 865
 866 #endif /* __QETH_CORE_H__ */