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 #define QETH_MIN_INPUT_THRESHOLD 1
 243 #define QETH_MAX_INPUT_THRESHOLD 500
 244 #define QETH_MIN_OUTPUT_THRESHOLD 1
 245 #define QETH_MAX_OUTPUT_THRESHOLD 300
 246
 247 /* priority queing */
 248 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 249 #define QETH_DEFAULT_QUEUE    2
 250 #define QETH_NO_PRIO_QUEUEING 0
 251 #define QETH_PRIO_Q_ING_PREC  1
 252 #define QETH_PRIO_Q_ING_TOS   2
 253 #define IP_TOS_LOWDELAY 0x10
 254 #define IP_TOS_HIGHTHROUGHPUT 0x08
 255 #define IP_TOS_HIGHRELIABILITY 0x04
 256 #define IP_TOS_NOTIMPORTANT 0x02
 257
 258 /* Packing */
 259 #define QETH_LOW_WATERMARK_PACK  2
 260 #define QETH_HIGH_WATERMARK_PACK 5
 261 #define QETH_WATERMARK_PACK_FUZZ 1
 262
 263 #define QETH_IP_HEADER_SIZE 40
 264
 265 /* large receive scatter gather copy break */
 266 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 267
 268 struct qeth_hdr_layer3 {
 269         __u8  id;
 270         __u8  flags;
 271         __u16 inbound_checksum; /*TSO:__u16 seqno */
 272         __u32 token;            /*TSO: __u32 reserved */
 273         __u16 length;
 274         __u8  vlan_prio;
 275         __u8  ext_flags;
 276         __u16 vlan_id;
 277         __u16 frame_offset;
 278         __u8  dest_addr[16];
 279 } __attribute__ ((packed));
 280
 281 struct qeth_hdr_layer2 {
 282         __u8 id;
 283         __u8 flags[3];
 284         __u8 port_no;
 285         __u8 hdr_length;
 286         __u16 pkt_length;
 287         __u16 seq_no;
 288         __u16 vlan_id;
 289         __u32 reserved;
 290         __u8 reserved2[16];
 291 } __attribute__ ((packed));
 292
 293 struct qeth_hdr_osn {
 294         __u8 id;
 295         __u8 reserved;
 296         __u16 seq_no;
 297         __u16 reserved2;
 298         __u16 control_flags;
 299         __u16 pdu_length;
 300         __u8 reserved3[18];
 301         __u32 ccid;
 302 } __attribute__ ((packed));
 303
 304 struct qeth_hdr {
 305         union {
 306                 struct qeth_hdr_layer2 l2;
 307                 struct qeth_hdr_layer3 l3;
 308                 struct qeth_hdr_osn    osn;
 309         } hdr;
 310 } __attribute__ ((packed));
 311
 312 /*TCP Segmentation Offload header*/
 313 struct qeth_hdr_ext_tso {
 314         __u16 hdr_tot_len;
 315         __u8  imb_hdr_no;
 316         __u8  reserved;
 317         __u8  hdr_type;
 318         __u8  hdr_version;
 319         __u16 hdr_len;
 320         __u32 payload_len;
 321         __u16 mss;
 322         __u16 dg_hdr_len;
 323         __u8  padding[16];
 324 } __attribute__ ((packed));
 325
 326 struct qeth_hdr_tso {
 327         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 328         struct qeth_hdr_ext_tso ext;
 329 } __attribute__ ((packed));
 330
 331
 332 /* flags for qeth_hdr.flags */
 333 #define QETH_HDR_PASSTHRU 0x10
 334 #define QETH_HDR_IPV6     0x80
 335 #define QETH_HDR_CAST_MASK 0x07
 336 enum qeth_cast_flags {
 337         QETH_CAST_UNICAST   = 0x06,
 338         QETH_CAST_MULTICAST = 0x04,
 339         QETH_CAST_BROADCAST = 0x05,
 340         QETH_CAST_ANYCAST   = 0x07,
 341         QETH_CAST_NOCAST    = 0x00,
 342 };
 343
 344 enum qeth_layer2_frame_flags {
 345         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 346         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 347         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 348         QETH_LAYER2_FLAG_VLAN      = 0x10,
 349 };
 350
 351 enum qeth_header_ids {
 352         QETH_HEADER_TYPE_LAYER3 = 0x01,
 353         QETH_HEADER_TYPE_LAYER2 = 0x02,
 354         QETH_HEADER_TYPE_TSO    = 0x03,
 355         QETH_HEADER_TYPE_OSN    = 0x04,
 356 };
 357 /* flags for qeth_hdr.ext_flags */
 358 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 359 #define QETH_HDR_EXT_TOKEN_ID         0x02
 360 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 361 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 362 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 363 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 364 #define QETH_HDR_EXT_UDP_TSO          0x40 /*bit off for TCP*/
 365
 366 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 367 {
 368         return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
 369 }
 370
 371 enum qeth_qdio_buffer_states {
 372         /*
 373          * inbound: read out by driver; owned by hardware in order to be filled
 374          * outbound: owned by driver in order to be filled
 375          */
 376         QETH_QDIO_BUF_EMPTY,
 377         /*
 378          * inbound: filled by hardware; owned by driver in order to be read out
 379          * outbound: filled by driver; owned by hardware in order to be sent
 380          */
 381         QETH_QDIO_BUF_PRIMED,
 382 };
 383
 384 enum qeth_qdio_info_states {
 385         QETH_QDIO_UNINITIALIZED,
 386         QETH_QDIO_ALLOCATED,
 387         QETH_QDIO_ESTABLISHED,
 388         QETH_QDIO_CLEANING
 389 };
 390
 391 struct qeth_buffer_pool_entry {
 392         struct list_head list;
 393         struct list_head init_list;
 394         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 395 };
 396
 397 struct qeth_qdio_buffer_pool {
 398         struct list_head entry_list;
 399         int buf_count;
 400 };
 401
 402 struct qeth_qdio_buffer {
 403         struct qdio_buffer *buffer;
 404         /* the buffer pool entry currently associated to this buffer */
 405         struct qeth_buffer_pool_entry *pool_entry;
 406 };
 407
 408 struct qeth_qdio_q {
 409         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 410         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 411         int next_buf_to_init;
 412 } __attribute__ ((aligned(256)));
 413
 414 /* possible types of qeth large_send support */
 415 enum qeth_large_send_types {
 416         QETH_LARGE_SEND_NO,
 417         QETH_LARGE_SEND_EDDP,
 418         QETH_LARGE_SEND_TSO,
 419 };
 420
 421 struct qeth_qdio_out_buffer {
 422         struct qdio_buffer *buffer;
 423         atomic_t state;
 424         int next_element_to_fill;
 425         struct sk_buff_head skb_list;
 426         struct list_head ctx_list;
 427 };
 428
 429 struct qeth_card;
 430
 431 enum qeth_out_q_states {
 432        QETH_OUT_Q_UNLOCKED,
 433        QETH_OUT_Q_LOCKED,
 434        QETH_OUT_Q_LOCKED_FLUSH,
 435 };
 436
 437 struct qeth_qdio_out_q {
 438         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 439         struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 440         int queue_no;
 441         struct qeth_card *card;
 442         atomic_t state;
 443         int do_pack;
 444         /*
 445          * index of buffer to be filled by driver; state EMPTY or PACKING
 446          */
 447         int next_buf_to_fill;
 448         /*
 449          * number of buffers that are currently filled (PRIMED)
 450          * -> these buffers are hardware-owned
 451          */
 452         atomic_t used_buffers;
 453         /* indicates whether PCI flag must be set (or if one is outstanding) */
 454         atomic_t set_pci_flags_count;
 455 } __attribute__ ((aligned(256)));
 456
 457 struct qeth_qdio_info {
 458         atomic_t state;
 459         /* input */
 460         struct qeth_qdio_q *in_q;
 461         struct qeth_qdio_buffer_pool in_buf_pool;
 462         struct qeth_qdio_buffer_pool init_pool;
 463         int in_buf_size;
 464
 465         /* output */
 466         int no_out_queues;
 467         struct qeth_qdio_out_q **out_qs;
 468
 469         /* priority queueing */
 470         int do_prio_queueing;
 471         int default_out_queue;
 472 };
 473
 474 enum qeth_send_errors {
 475         QETH_SEND_ERROR_NONE,
 476         QETH_SEND_ERROR_LINK_FAILURE,
 477         QETH_SEND_ERROR_RETRY,
 478         QETH_SEND_ERROR_KICK_IT,
 479 };
 480
 481 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 482 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 483 /* tr mc mac is longer, but that will be enough to detect mc frames */
 484 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 485 #define QETH_TR_MAC_C        0x0300 /* canonical */
 486
 487 #define DEFAULT_ADD_HHLEN 0
 488 #define MAX_ADD_HHLEN 1024
 489
 490 /**
 491  * buffer stuff for read channel
 492  */
 493 #define QETH_CMD_BUFFER_NO      8
 494
 495 /**
 496  *  channel state machine
 497  */
 498 enum qeth_channel_states {
 499         CH_STATE_UP,
 500         CH_STATE_DOWN,
 501         CH_STATE_ACTIVATING,
 502         CH_STATE_HALTED,
 503         CH_STATE_STOPPED,
 504         CH_STATE_RCD,
 505         CH_STATE_RCD_DONE,
 506 };
 507 /**
 508  * card state machine
 509  */
 510 enum qeth_card_states {
 511         CARD_STATE_DOWN,
 512         CARD_STATE_HARDSETUP,
 513         CARD_STATE_SOFTSETUP,
 514         CARD_STATE_UP,
 515         CARD_STATE_RECOVER,
 516 };
 517
 518 /**
 519  * Protocol versions
 520  */
 521 enum qeth_prot_versions {
 522         QETH_PROT_IPV4 = 0x0004,
 523         QETH_PROT_IPV6 = 0x0006,
 524 };
 525
 526 enum qeth_ip_types {
 527         QETH_IP_TYPE_NORMAL,
 528         QETH_IP_TYPE_VIPA,
 529         QETH_IP_TYPE_RXIP,
 530         QETH_IP_TYPE_DEL_ALL_MC,
 531 };
 532
 533 enum qeth_cmd_buffer_state {
 534         BUF_STATE_FREE,
 535         BUF_STATE_LOCKED,
 536         BUF_STATE_PROCESSED,
 537 };
 538
 539 struct qeth_ipato {
 540         int enabled;
 541         int invert4;
 542         int invert6;
 543         struct list_head entries;
 544 };
 545
 546 struct qeth_channel;
 547
 548 struct qeth_cmd_buffer {
 549         enum qeth_cmd_buffer_state state;
 550         struct qeth_channel *channel;
 551         unsigned char *data;
 552         int rc;
 553         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 554 };
 555
 556 /**
 557  * definition of a qeth channel, used for read and write
 558  */
 559 struct qeth_channel {
 560         enum qeth_channel_states state;
 561         struct ccw1 ccw;
 562         spinlock_t iob_lock;
 563         wait_queue_head_t wait_q;
 564         struct tasklet_struct irq_tasklet;
 565         struct ccw_device *ccwdev;
 566 /*command buffer for control data*/
 567         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 568         atomic_t irq_pending;
 569         int io_buf_no;
 570         int buf_no;
 571 };
 572
 573 /**
 574  *  OSA card related definitions
 575  */
 576 struct qeth_token {
 577         __u32 issuer_rm_w;
 578         __u32 issuer_rm_r;
 579         __u32 cm_filter_w;
 580         __u32 cm_filter_r;
 581         __u32 cm_connection_w;
 582         __u32 cm_connection_r;
 583         __u32 ulp_filter_w;
 584         __u32 ulp_filter_r;
 585         __u32 ulp_connection_w;
 586         __u32 ulp_connection_r;
 587 };
 588
 589 struct qeth_seqno {
 590         __u32 trans_hdr;
 591         __u32 pdu_hdr;
 592         __u32 pdu_hdr_ack;
 593         __u16 ipa;
 594         __u32 pkt_seqno;
 595 };
 596
 597 struct qeth_reply {
 598         struct list_head list;
 599         wait_queue_head_t wait_q;
 600         int (*callback)(struct qeth_card *, struct qeth_reply *,
 601                 unsigned long);
 602         u32 seqno;
 603         unsigned long offset;
 604         atomic_t received;
 605         int rc;
 606         void *param;
 607         struct qeth_card *card;
 608         atomic_t refcnt;
 609 };
 610
 611
 612 struct qeth_card_blkt {
 613         int time_total;
 614         int inter_packet;
 615         int inter_packet_jumbo;
 616 };
 617
 618 #define QETH_BROADCAST_WITH_ECHO    0x01
 619 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 620 #define QETH_LAYER2_MAC_READ        0x01
 621 #define QETH_LAYER2_MAC_REGISTERED  0x02
 622 struct qeth_card_info {
 623         unsigned short unit_addr2;
 624         unsigned short cula;
 625         unsigned short chpid;
 626         __u16 func_level;
 627         char mcl_level[QETH_MCL_LENGTH + 1];
 628         int guestlan;
 629         int mac_bits;
 630         int portname_required;
 631         int portno;
 632         char portname[9];
 633         enum qeth_card_types type;
 634         enum qeth_link_types link_type;
 635         int is_multicast_different;
 636         int initial_mtu;
 637         int max_mtu;
 638         int broadcast_capable;
 639         int unique_id;
 640         struct qeth_card_blkt blkt;
 641         __u32 csum_mask;
 642         enum qeth_ipa_promisc_modes promisc_mode;
 643 };
 644
 645 struct qeth_card_options {
 646         struct qeth_routing_info route4;
 647         struct qeth_ipa_info ipa4;
 648         struct qeth_ipa_info adp; /*Adapter parameters*/
 649         struct qeth_routing_info route6;
 650         struct qeth_ipa_info ipa6;
 651         enum qeth_checksum_types checksum_type;
 652         int broadcast_mode;
 653         int macaddr_mode;
 654         int fake_broadcast;
 655         int add_hhlen;
 656         int fake_ll;
 657         int layer2;
 658         enum qeth_large_send_types large_send;
 659         int performance_stats;
 660         int rx_sg_cb;
 661 };
 662
 663 /*
 664  * thread bits for qeth_card thread masks
 665  */
 666 enum qeth_threads {
 667         QETH_RECOVER_THREAD = 1,
 668 };
 669
 670 struct qeth_osn_info {
 671         int (*assist_cb)(struct net_device *dev, void *data);
 672         int (*data_cb)(struct sk_buff *skb);
 673 };
 674
 675 enum qeth_discipline_id {
 676         QETH_DISCIPLINE_LAYER3 = 0,
 677         QETH_DISCIPLINE_LAYER2 = 1,
 678 };
 679
 680 struct qeth_discipline {
 681         qdio_handler_t *input_handler;
 682         qdio_handler_t *output_handler;
 683         int (*recover)(void *ptr);
 684         struct ccwgroup_driver *ccwgdriver;
 685 };
 686
 687 struct qeth_vlan_vid {
 688         struct list_head list;
 689         unsigned short vid;
 690 };
 691
 692 struct qeth_mc_mac {
 693         struct list_head list;
 694         __u8 mc_addr[MAX_ADDR_LEN];
 695         unsigned char mc_addrlen;
 696 };
 697
 698 struct qeth_card {
 699         struct list_head list;
 700         enum qeth_card_states state;
 701         int lan_online;
 702         spinlock_t lock;
 703         struct ccwgroup_device *gdev;
 704         struct qeth_channel read;
 705         struct qeth_channel write;
 706         struct qeth_channel data;
 707
 708         struct net_device *dev;
 709         struct net_device_stats stats;
 710
 711         struct qeth_card_info info;
 712         struct qeth_token token;
 713         struct qeth_seqno seqno;
 714         struct qeth_card_options options;
 715
 716         wait_queue_head_t wait_q;
 717         spinlock_t vlanlock;
 718         spinlock_t mclock;
 719         struct vlan_group *vlangrp;
 720         struct list_head vid_list;
 721         struct list_head mc_list;
 722         struct work_struct kernel_thread_starter;
 723         spinlock_t thread_mask_lock;
 724         unsigned long thread_start_mask;
 725         unsigned long thread_allowed_mask;
 726         unsigned long thread_running_mask;
 727         spinlock_t ip_lock;
 728         struct list_head ip_list;
 729         struct list_head *ip_tbd_list;
 730         struct qeth_ipato ipato;
 731         struct list_head cmd_waiter_list;
 732         /* QDIO buffer handling */
 733         struct qeth_qdio_info qdio;
 734         struct qeth_perf_stats perf_stats;
 735         int use_hard_stop;
 736         struct qeth_osn_info osn_info;
 737         struct qeth_discipline discipline;
 738         atomic_t force_alloc_skb;
 739 };
 740
 741 struct qeth_card_list_struct {
 742         struct list_head list;
 743         rwlock_t rwlock;
 744 };
 745
 746 /*some helper functions*/
 747 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 748
 749 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 750 {
 751         struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 752                 dev_get_drvdata(&cdev->dev))->dev);
 753         return card;
 754 }
 755
 756 static inline int qeth_get_micros(void)
 757 {
 758         return (int) (get_clock() >> 12);
 759 }
 760
 761 static inline int qeth_get_ip_version(struct sk_buff *skb)
 762 {
 763         switch (skb->protocol) {
 764         case ETH_P_IPV6:
 765                 return 6;
 766         case ETH_P_IP:
 767                 return 4;
 768         default:
 769                 return 0;
 770         }
 771 }
 772
 773 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 774                 struct qeth_buffer_pool_entry *entry)
 775 {
 776         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 777 }
 778
 779 struct qeth_eddp_context;
 780 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
 781 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
 782 const char *qeth_get_cardname_short(struct qeth_card *);
 783 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 784 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 785 void qeth_core_free_discipline(struct qeth_card *);
 786 int qeth_core_create_device_attributes(struct device *);
 787 void qeth_core_remove_device_attributes(struct device *);
 788 int qeth_core_create_osn_attributes(struct device *);
 789 void qeth_core_remove_osn_attributes(struct device *);
 790
 791 /* exports for qeth discipline device drivers */
 792 extern struct qeth_card_list_struct qeth_core_card_list;
 793
 794 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 795
 796 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 797 int qeth_threads_running(struct qeth_card *, unsigned long);
 798 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 799 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 800 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 801 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 802 int qeth_core_hardsetup_card(struct qeth_card *);
 803 void qeth_print_status_message(struct qeth_card *);
 804 int qeth_init_qdio_queues(struct qeth_card *);
 805 int qeth_send_startlan(struct qeth_card *);
 806 int qeth_send_stoplan(struct qeth_card *);
 807 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 808                   int (*reply_cb)
 809                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 810                   void *);
 811 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 812                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 813 int qeth_query_setadapterparms(struct qeth_card *);
 814 int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int,
 815                        unsigned int, const char *);
 816 void qeth_queue_input_buffer(struct qeth_card *, int);
 817 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 818                 struct qdio_buffer *, struct qdio_buffer_element **, int *,
 819                 struct qeth_hdr **);
 820 void qeth_schedule_recovery(struct qeth_card *);
 821 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 822                         unsigned int, unsigned int,
 823                         unsigned int, int, int,
 824                         unsigned long);
 825 void qeth_clear_ipacmd_list(struct qeth_card *);
 826 int qeth_qdio_clear_card(struct qeth_card *, int);
 827 void qeth_clear_working_pool_list(struct qeth_card *);
 828 void qeth_clear_cmd_buffers(struct qeth_channel *);
 829 void qeth_clear_qdio_buffers(struct qeth_card *);
 830 void qeth_setadp_promisc_mode(struct qeth_card *);
 831 struct net_device_stats *qeth_get_stats(struct net_device *);
 832 int qeth_change_mtu(struct net_device *, int);
 833 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 834 void qeth_tx_timeout(struct net_device *);
 835 void qeth_prepare_control_data(struct qeth_card *, int,
 836                                 struct qeth_cmd_buffer *);
 837 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 838 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 839 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 840 int qeth_mdio_read(struct net_device *, int, int);
 841 int qeth_snmp_command(struct qeth_card *, char __user *);
 842 int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);
 843 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
 844 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
 845                                         unsigned long);
 846 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 847         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 848         void *reply_param);
 849 int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
 850 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 851 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
 852 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 853                         struct sk_buff *, struct qeth_hdr *, int,
 854                         struct qeth_eddp_context *);
 855 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 856                     struct sk_buff *, struct qeth_hdr *,
 857                     int, struct qeth_eddp_context *);
 858 int qeth_core_get_stats_count(struct net_device *);
 859 void qeth_core_get_ethtool_stats(struct net_device *,
 860                                 struct ethtool_stats *, u64 *);
 861 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 862 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 863 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...);
 864 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 865
 866 /* exports for OSN */
 867 int qeth_osn_assist(struct net_device *, void *, int);
 868 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 869                 int (*assist_cb)(struct net_device *, void *),
 870                 int (*data_cb)(struct sk_buff *));
 871 void qeth_osn_deregister(struct net_device *);
 872
 873 #endif /* __QETH_CORE_H__ */