release/src-rt-6.x.4708/linux/linux-2.6.36/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 #include <asm/sysinfo.h>
  35
  36 #include "qeth_core_mpc.h"
  37
  38 /**
  39  * Debug Facility stuff
  40  */
  41 enum qeth_dbf_names {
  42         QETH_DBF_SETUP,
  43         QETH_DBF_MSG,
  44         QETH_DBF_CTRL,
  45         QETH_DBF_INFOS  /* must be last element */
  46 };
  47
  48 struct qeth_dbf_info {
  49         char name[DEBUG_MAX_NAME_LEN];
  50         int pages;
  51         int areas;
  52         int len;
  53         int level;
  54         struct debug_view *view;
  55         debug_info_t *id;
  56 };
  57
  58 #define QETH_DBF_CTRL_LEN 256
  59
  60 #define QETH_DBF_TEXT(name, level, text) \
  61         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  62
  63 #define QETH_DBF_HEX(name, level, addr, len) \
  64         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  65
  66 #define QETH_DBF_MESSAGE(level, text...) \
  67         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  68
  69 #define QETH_DBF_TEXT_(name, level, text...) \
  70         qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
  71
  72 #define QETH_CARD_TEXT(card, level, text) \
  73         debug_text_event(card->debug, level, text)
  74
  75 #define QETH_CARD_HEX(card, level, addr, len) \
  76         debug_event(card->debug, level, (void *)(addr), len)
  77
  78 #define QETH_CARD_MESSAGE(card, text...) \
  79         debug_sprintf_event(card->debug, level, text)
  80
  81 #define QETH_CARD_TEXT_(card, level, text...) \
  82         qeth_dbf_longtext(card->debug, level, text)
  83
  84 #define SENSE_COMMAND_REJECT_BYTE 0
  85 #define SENSE_COMMAND_REJECT_FLAG 0x80
  86 #define SENSE_RESETTING_EVENT_BYTE 1
  87 #define SENSE_RESETTING_EVENT_FLAG 0x80
  88
  89 /*
  90  * Common IO related definitions
  91  */
  92 #define CARD_RDEV(card) card->read.ccwdev
  93 #define CARD_WDEV(card) card->write.ccwdev
  94 #define CARD_DDEV(card) card->data.ccwdev
  95 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  96 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  97 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  98 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  99 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
 100
 101 /**
 102  * card stuff
 103  */
 104 struct qeth_perf_stats {
 105         unsigned int bufs_rec;
 106         unsigned int bufs_sent;
 107
 108         unsigned int skbs_sent_pack;
 109         unsigned int bufs_sent_pack;
 110
 111         unsigned int sc_dp_p;
 112         unsigned int sc_p_dp;
 113         /* qdio_input_handler: number of times called, time spent in */
 114         __u64 inbound_start_time;
 115         unsigned int inbound_cnt;
 116         unsigned int inbound_time;
 117         /* qeth_send_packet: number of times called, time spent in */
 118         __u64 outbound_start_time;
 119         unsigned int outbound_cnt;
 120         unsigned int outbound_time;
 121         /* qdio_output_handler: number of times called, time spent in */
 122         __u64 outbound_handler_start_time;
 123         unsigned int outbound_handler_cnt;
 124         unsigned int outbound_handler_time;
 125         /* number of calls to and time spent in do_QDIO for inbound queue */
 126         __u64 inbound_do_qdio_start_time;
 127         unsigned int inbound_do_qdio_cnt;
 128         unsigned int inbound_do_qdio_time;
 129         /* number of calls to and time spent in do_QDIO for outbound queues */
 130         __u64 outbound_do_qdio_start_time;
 131         unsigned int outbound_do_qdio_cnt;
 132         unsigned int outbound_do_qdio_time;
 133         unsigned int large_send_bytes;
 134         unsigned int large_send_cnt;
 135         unsigned int sg_skbs_sent;
 136         unsigned int sg_frags_sent;
 137         /* initial values when measuring starts */
 138         unsigned long initial_rx_packets;
 139         unsigned long initial_tx_packets;
 140         /* inbound scatter gather data */
 141         unsigned int sg_skbs_rx;
 142         unsigned int sg_frags_rx;
 143         unsigned int sg_alloc_page_rx;
 144         unsigned int tx_csum;
 145         unsigned int tx_lin;
 146 };
 147
 148 /* Routing stuff */
 149 struct qeth_routing_info {
 150         enum qeth_routing_types type;
 151 };
 152
 153 /* IPA stuff */
 154 struct qeth_ipa_info {
 155         __u32 supported_funcs;
 156         __u32 enabled_funcs;
 157 };
 158
 159 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 160                 enum qeth_ipa_funcs func)
 161 {
 162         return (ipa->supported_funcs & func);
 163 }
 164
 165 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 166                 enum qeth_ipa_funcs func)
 167 {
 168         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 169 }
 170
 171 #define qeth_adp_supported(c, f) \
 172         qeth_is_ipa_supported(&c->options.adp, f)
 173 #define qeth_adp_enabled(c, f) \
 174         qeth_is_ipa_enabled(&c->options.adp, f)
 175 #define qeth_is_supported(c, f) \
 176         qeth_is_ipa_supported(&c->options.ipa4, f)
 177 #define qeth_is_enabled(c, f) \
 178         qeth_is_ipa_enabled(&c->options.ipa4, f)
 179 #define qeth_is_supported6(c, f) \
 180         qeth_is_ipa_supported(&c->options.ipa6, f)
 181 #define qeth_is_enabled6(c, f) \
 182         qeth_is_ipa_enabled(&c->options.ipa6, f)
 183 #define qeth_is_ipafunc_supported(c, prot, f) \
 184          ((prot == QETH_PROT_IPV6) ? \
 185                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 186 #define qeth_is_ipafunc_enabled(c, prot, f) \
 187          ((prot == QETH_PROT_IPV6) ? \
 188                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 189
 190 #define QETH_IDX_FUNC_LEVEL_OSD          0x0101
 191 #define QETH_IDX_FUNC_LEVEL_IQD          0x4108
 192
 193 #define QETH_MODELLIST_ARRAY \
 194         {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
 195          {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
 196          {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
 197          {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
 198          {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
 199          {0, 0, 0, 0, 0, 0} }
 200 #define QETH_CU_TYPE_IND        0
 201 #define QETH_CU_MODEL_IND       1
 202 #define QETH_DEV_TYPE_IND       2
 203 #define QETH_DEV_MODEL_IND      3
 204 #define QETH_QUEUE_NO_IND       4
 205 #define QETH_MULTICAST_IND      5
 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;
 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              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_TSO,
 413 };
 414
 415 struct qeth_qdio_out_buffer {
 416         struct qdio_buffer *buffer;
 417         atomic_t state;
 418         int next_element_to_fill;
 419         struct sk_buff_head skb_list;
 420         struct list_head ctx_list;
 421         int is_header[16];
 422 };
 423
 424 struct qeth_card;
 425
 426 enum qeth_out_q_states {
 427        QETH_OUT_Q_UNLOCKED,
 428        QETH_OUT_Q_LOCKED,
 429        QETH_OUT_Q_LOCKED_FLUSH,
 430 };
 431
 432 struct qeth_qdio_out_q {
 433         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 434         struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 435         int queue_no;
 436         struct qeth_card *card;
 437         atomic_t state;
 438         int do_pack;
 439         /*
 440          * index of buffer to be filled by driver; state EMPTY or PACKING
 441          */
 442         int next_buf_to_fill;
 443         int sync_iqdio_error;
 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         __u32 tx_csum_mask;
 639         enum qeth_ipa_promisc_modes promisc_mode;
 640 };
 641
 642 struct qeth_card_options {
 643         struct qeth_routing_info route4;
 644         struct qeth_ipa_info ipa4;
 645         struct qeth_ipa_info adp; /*Adapter parameters*/
 646         struct qeth_routing_info route6;
 647         struct qeth_ipa_info ipa6;
 648         enum qeth_checksum_types checksum_type;
 649         int broadcast_mode;
 650         int macaddr_mode;
 651         int fake_broadcast;
 652         int add_hhlen;
 653         int layer2;
 654         enum qeth_large_send_types large_send;
 655         int performance_stats;
 656         int rx_sg_cb;
 657         enum qeth_ipa_isolation_modes isolation;
 658         int sniffer;
 659 };
 660
 661 /*
 662  * thread bits for qeth_card thread masks
 663  */
 664 enum qeth_threads {
 665         QETH_RECOVER_THREAD = 1,
 666 };
 667
 668 struct qeth_osn_info {
 669         int (*assist_cb)(struct net_device *dev, void *data);
 670         int (*data_cb)(struct sk_buff *skb);
 671 };
 672
 673 enum qeth_discipline_id {
 674         QETH_DISCIPLINE_LAYER3 = 0,
 675         QETH_DISCIPLINE_LAYER2 = 1,
 676 };
 677
 678 struct qeth_discipline {
 679         qdio_handler_t *input_handler;
 680         qdio_handler_t *output_handler;
 681         int (*recover)(void *ptr);
 682         struct ccwgroup_driver *ccwgdriver;
 683 };
 684
 685 struct qeth_vlan_vid {
 686         struct list_head list;
 687         unsigned short vid;
 688 };
 689
 690 struct qeth_mc_mac {
 691         struct list_head list;
 692         __u8 mc_addr[MAX_ADDR_LEN];
 693         unsigned char mc_addrlen;
 694         int is_vmac;
 695 };
 696
 697 struct qeth_skb_data {
 698         __u32 magic;
 699         int count;
 700 };
 701
 702 #define QETH_SKB_MAGIC 0x71657468
 703 #define QETH_SIGA_CC2_RETRIES 3
 704
 705 struct qeth_card {
 706         struct list_head list;
 707         enum qeth_card_states state;
 708         int lan_online;
 709         spinlock_t lock;
 710         struct ccwgroup_device *gdev;
 711         struct qeth_channel read;
 712         struct qeth_channel write;
 713         struct qeth_channel data;
 714
 715         struct net_device *dev;
 716         struct net_device_stats stats;
 717
 718         struct qeth_card_info info;
 719         struct qeth_token token;
 720         struct qeth_seqno seqno;
 721         struct qeth_card_options options;
 722
 723         wait_queue_head_t wait_q;
 724         spinlock_t vlanlock;
 725         spinlock_t mclock;
 726         struct vlan_group *vlangrp;
 727         struct list_head vid_list;
 728         struct list_head mc_list;
 729         struct work_struct kernel_thread_starter;
 730         spinlock_t thread_mask_lock;
 731         unsigned long thread_start_mask;
 732         unsigned long thread_allowed_mask;
 733         unsigned long thread_running_mask;
 734         spinlock_t ip_lock;
 735         struct list_head ip_list;
 736         struct list_head *ip_tbd_list;
 737         struct qeth_ipato ipato;
 738         struct list_head cmd_waiter_list;
 739         /* QDIO buffer handling */
 740         struct qeth_qdio_info qdio;
 741         struct qeth_perf_stats perf_stats;
 742         int use_hard_stop;
 743         int read_or_write_problem;
 744         struct qeth_osn_info osn_info;
 745         struct qeth_discipline discipline;
 746         atomic_t force_alloc_skb;
 747         struct service_level qeth_service_level;
 748         struct qdio_ssqd_desc ssqd;
 749         debug_info_t *debug;
 750         struct mutex conf_mutex;
 751         struct mutex discipline_mutex;
 752 };
 753
 754 struct qeth_card_list_struct {
 755         struct list_head list;
 756         rwlock_t rwlock;
 757 };
 758
 759 /*some helper functions*/
 760 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 761
 762 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 763 {
 764         struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 765                 dev_get_drvdata(&cdev->dev))->dev);
 766         return card;
 767 }
 768
 769 static inline int qeth_get_micros(void)
 770 {
 771         return (int) (get_clock() >> 12);
 772 }
 773
 774 static inline int qeth_get_ip_version(struct sk_buff *skb)
 775 {
 776         struct ethhdr *ehdr = (struct ethhdr *)skb->data;
 777         switch (ehdr->h_proto) {
 778         case ETH_P_IPV6:
 779                 return 6;
 780         case ETH_P_IP:
 781                 return 4;
 782         default:
 783                 return 0;
 784         }
 785 }
 786
 787 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 788                 struct qeth_buffer_pool_entry *entry)
 789 {
 790         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 791 }
 792
 793 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
 794 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
 795 const char *qeth_get_cardname_short(struct qeth_card *);
 796 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 797 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 798 void qeth_core_free_discipline(struct qeth_card *);
 799 int qeth_core_create_device_attributes(struct device *);
 800 void qeth_core_remove_device_attributes(struct device *);
 801 int qeth_core_create_osn_attributes(struct device *);
 802 void qeth_core_remove_osn_attributes(struct device *);
 803
 804 /* exports for qeth discipline device drivers */
 805 extern struct qeth_card_list_struct qeth_core_card_list;
 806 extern struct kmem_cache *qeth_core_header_cache;
 807 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 808
 809 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 810 int qeth_threads_running(struct qeth_card *, unsigned long);
 811 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 812 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 813 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 814 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 815 int qeth_core_hardsetup_card(struct qeth_card *);
 816 void qeth_print_status_message(struct qeth_card *);
 817 int qeth_init_qdio_queues(struct qeth_card *);
 818 int qeth_send_startlan(struct qeth_card *);
 819 int qeth_send_stoplan(struct qeth_card *);
 820 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 821                   int (*reply_cb)
 822                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 823                   void *);
 824 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 825                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 826 int qeth_query_setadapterparms(struct qeth_card *);
 827 int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
 828                 unsigned int, const char *);
 829 void qeth_queue_input_buffer(struct qeth_card *, int);
 830 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 831                 struct qdio_buffer *, struct qdio_buffer_element **, int *,
 832                 struct qeth_hdr **);
 833 void qeth_schedule_recovery(struct qeth_card *);
 834 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 835                         int, int, int, unsigned long);
 836 void qeth_clear_ipacmd_list(struct qeth_card *);
 837 int qeth_qdio_clear_card(struct qeth_card *, int);
 838 void qeth_clear_working_pool_list(struct qeth_card *);
 839 void qeth_clear_cmd_buffers(struct qeth_channel *);
 840 void qeth_clear_qdio_buffers(struct qeth_card *);
 841 void qeth_setadp_promisc_mode(struct qeth_card *);
 842 struct net_device_stats *qeth_get_stats(struct net_device *);
 843 int qeth_change_mtu(struct net_device *, int);
 844 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 845 void qeth_tx_timeout(struct net_device *);
 846 void qeth_prepare_control_data(struct qeth_card *, int,
 847                                 struct qeth_cmd_buffer *);
 848 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 849 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 850 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 851 int qeth_mdio_read(struct net_device *, int, int);
 852 int qeth_snmp_command(struct qeth_card *, char __user *);
 853 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
 854 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
 855                                         unsigned long);
 856 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 857         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 858         void *reply_param);
 859 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 860 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
 861 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 862                         struct sk_buff *, struct qeth_hdr *, int, int, int);
 863 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 864                     struct sk_buff *, struct qeth_hdr *, int);
 865 int qeth_core_get_sset_count(struct net_device *, int);
 866 void qeth_core_get_ethtool_stats(struct net_device *,
 867                                 struct ethtool_stats *, u64 *);
 868 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 869 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 870 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 871 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 872 int qeth_set_access_ctrl_online(struct qeth_card *card);
 873 int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
 874
 875 /* exports for OSN */
 876 int qeth_osn_assist(struct net_device *, void *, int);
 877 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 878                 int (*assist_cb)(struct net_device *, void *),
 879                 int (*data_cb)(struct sk_buff *));
 880 void qeth_osn_deregister(struct net_device *);
 881
 882 #endif /* __QETH_CORE_H__ */