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_QERR,
  44         QETH_DBF_TRACE,
  45         QETH_DBF_MSG,
  46         QETH_DBF_SENSE,
  47         QETH_DBF_MISC,
  48         QETH_DBF_CTRL,
  49         QETH_DBF_INFOS  /* must be last element */
  50 };
  51
  52 struct qeth_dbf_info {
  53         char name[DEBUG_MAX_NAME_LEN];
  54         int pages;
  55         int areas;
  56         int len;
  57         int level;
  58         struct debug_view *view;
  59         debug_info_t *id;
  60 };
  61
  62 #define QETH_DBF_CTRL_LEN 256
  63
  64 #define QETH_DBF_TEXT(name, level, text) \
  65         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  66
  67 #define QETH_DBF_HEX(name, level, addr, len) \
  68         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  69
  70 #define QETH_DBF_MESSAGE(level, text...) \
  71         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  72
  73 #define QETH_DBF_TEXT_(name, level, text...) \
  74         qeth_dbf_longtext(QETH_DBF_##name, level, text)
  75
  76 #define SENSE_COMMAND_REJECT_BYTE 0
  77 #define SENSE_COMMAND_REJECT_FLAG 0x80
  78 #define SENSE_RESETTING_EVENT_BYTE 1
  79 #define SENSE_RESETTING_EVENT_FLAG 0x80
  80
  81 /*
  82  * Common IO related definitions
  83  */
  84 #define CARD_RDEV(card) card->read.ccwdev
  85 #define CARD_WDEV(card) card->write.ccwdev
  86 #define CARD_DDEV(card) card->data.ccwdev
  87 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  88 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  89 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  90 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  91 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
  92
  93 /**
  94  * card stuff
  95  */
  96 struct qeth_perf_stats {
  97         unsigned int bufs_rec;
  98         unsigned int bufs_sent;
  99
 100         unsigned int skbs_sent_pack;
 101         unsigned int bufs_sent_pack;
 102
 103         unsigned int sc_dp_p;
 104         unsigned int sc_p_dp;
 105         /* qdio_input_handler: number of times called, time spent in */
 106         __u64 inbound_start_time;
 107         unsigned int inbound_cnt;
 108         unsigned int inbound_time;
 109         /* qeth_send_packet: number of times called, time spent in */
 110         __u64 outbound_start_time;
 111         unsigned int outbound_cnt;
 112         unsigned int outbound_time;
 113         /* qdio_output_handler: number of times called, time spent in */
 114         __u64 outbound_handler_start_time;
 115         unsigned int outbound_handler_cnt;
 116         unsigned int outbound_handler_time;
 117         /* number of calls to and time spent in do_QDIO for inbound queue */
 118         __u64 inbound_do_qdio_start_time;
 119         unsigned int inbound_do_qdio_cnt;
 120         unsigned int inbound_do_qdio_time;
 121         /* number of calls to and time spent in do_QDIO for outbound queues */
 122         __u64 outbound_do_qdio_start_time;
 123         unsigned int outbound_do_qdio_cnt;
 124         unsigned int outbound_do_qdio_time;
 125         /* eddp data */
 126         unsigned int large_send_bytes;
 127         unsigned int large_send_cnt;
 128         unsigned int sg_skbs_sent;
 129         unsigned int sg_frags_sent;
 130         /* initial values when measuring starts */
 131         unsigned long initial_rx_packets;
 132         unsigned long initial_tx_packets;
 133         /* inbound scatter gather data */
 134         unsigned int sg_skbs_rx;
 135         unsigned int sg_frags_rx;
 136         unsigned int sg_alloc_page_rx;
 137 };
 138
 139 /* Routing stuff */
 140 struct qeth_routing_info {
 141         enum qeth_routing_types type;
 142 };
 143
 144 /* IPA stuff */
 145 struct qeth_ipa_info {
 146         __u32 supported_funcs;
 147         __u32 enabled_funcs;
 148 };
 149
 150 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 151                 enum qeth_ipa_funcs func)
 152 {
 153         return (ipa->supported_funcs & func);
 154 }
 155
 156 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 157                 enum qeth_ipa_funcs func)
 158 {
 159         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 160 }
 161
 162 #define qeth_adp_supported(c, f) \
 163         qeth_is_ipa_supported(&c->options.adp, f)
 164 #define qeth_adp_enabled(c, f) \
 165         qeth_is_ipa_enabled(&c->options.adp, f)
 166 #define qeth_is_supported(c, f) \
 167         qeth_is_ipa_supported(&c->options.ipa4, f)
 168 #define qeth_is_enabled(c, f) \
 169         qeth_is_ipa_enabled(&c->options.ipa4, f)
 170 #define qeth_is_supported6(c, f) \
 171         qeth_is_ipa_supported(&c->options.ipa6, f)
 172 #define qeth_is_enabled6(c, f) \
 173         qeth_is_ipa_enabled(&c->options.ipa6, f)
 174 #define qeth_is_ipafunc_supported(c, prot, f) \
 175          ((prot == QETH_PROT_IPV6) ? \
 176                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 177 #define qeth_is_ipafunc_enabled(c, prot, f) \
 178          ((prot == QETH_PROT_IPV6) ? \
 179                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 180
 181 #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
 182 #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
 183 #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
 184 #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
 185
 186 #define QETH_MODELLIST_ARRAY \
 187         {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \
 188         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 189         QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 190         QETH_MAX_QUEUES, 0}, \
 191         {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \
 192         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
 193         QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
 194         QETH_MAX_QUEUES, 0x103}, \
 195         {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \
 196         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 197         QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 198         QETH_MAX_QUEUES, 0}, \
 199         {0, 0, 0, 0, 0, 0, 0, 0, 0} }
 200
 201 #define QETH_REAL_CARD          1
 202 #define QETH_VLAN_CARD          2
 203 #define QETH_BUFSIZE            4096
 204
 205 /**
 206  * some more defs
 207  */
 208 #define QETH_TX_TIMEOUT         100 * HZ
 209 #define QETH_RCD_TIMEOUT        60 * HZ
 210 #define QETH_HEADER_SIZE        32
 211 #define QETH_MAX_PORTNO         15
 212
 213 /*IPv6 address autoconfiguration stuff*/
 214 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 215 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 216
 217 /*****************************************************************************/
 218 /* QDIO queue and buffer handling                                            */
 219 /*****************************************************************************/
 220 #define QETH_MAX_QUEUES 4
 221 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 222 #define QETH_IN_BUF_COUNT_DEFAULT 16
 223 #define QETH_IN_BUF_COUNT_MIN 8
 224 #define QETH_IN_BUF_COUNT_MAX 128
 225 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 226 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 227                 ((card)->qdio.in_buf_pool.buf_count / 2)
 228
 229 /* buffers we have to be behind before we get a PCI */
 230 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 231 /*enqueued free buffers left before we get a PCI*/
 232 #define QETH_PCI_THRESHOLD_B(card) 0
 233 /*not used unless the microcode gets patched*/
 234 #define QETH_PCI_TIMER_VALUE(card) 3
 235
 236 /* priority queing */
 237 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 238 #define QETH_DEFAULT_QUEUE    2
 239 #define QETH_NO_PRIO_QUEUEING 0
 240 #define QETH_PRIO_Q_ING_PREC  1
 241 #define QETH_PRIO_Q_ING_TOS   2
 242 #define IP_TOS_LOWDELAY 0x10
 243 #define IP_TOS_HIGHTHROUGHPUT 0x08
 244 #define IP_TOS_HIGHRELIABILITY 0x04
 245 #define IP_TOS_NOTIMPORTANT 0x02
 246
 247 /* Packing */
 248 #define QETH_LOW_WATERMARK_PACK  2
 249 #define QETH_HIGH_WATERMARK_PACK 5
 250 #define QETH_WATERMARK_PACK_FUZZ 1
 251
 252 #define QETH_IP_HEADER_SIZE 40
 253
 254 /* large receive scatter gather copy break */
 255 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 256
 257 struct qeth_hdr_layer3 {
 258         __u8  id;
 259         __u8  flags;
 260         __u16 inbound_checksum; /*TSO:__u16 seqno */
 261         __u32 token;            /*TSO: __u32 reserved */
 262         __u16 length;
 263         __u8  vlan_prio;
 264         __u8  ext_flags;
 265         __u16 vlan_id;
 266         __u16 frame_offset;
 267         __u8  dest_addr[16];
 268 } __attribute__ ((packed));
 269
 270 struct qeth_hdr_layer2 {
 271         __u8 id;
 272         __u8 flags[3];
 273         __u8 port_no;
 274         __u8 hdr_length;
 275         __u16 pkt_length;
 276         __u16 seq_no;
 277         __u16 vlan_id;
 278         __u32 reserved;
 279         __u8 reserved2[16];
 280 } __attribute__ ((packed));
 281
 282 struct qeth_hdr_osn {
 283         __u8 id;
 284         __u8 reserved;
 285         __u16 seq_no;
 286         __u16 reserved2;
 287         __u16 control_flags;
 288         __u16 pdu_length;
 289         __u8 reserved3[18];
 290         __u32 ccid;
 291 } __attribute__ ((packed));
 292
 293 struct qeth_hdr {
 294         union {
 295                 struct qeth_hdr_layer2 l2;
 296                 struct qeth_hdr_layer3 l3;
 297                 struct qeth_hdr_osn    osn;
 298         } hdr;
 299 } __attribute__ ((packed));
 300
 301 /*TCP Segmentation Offload header*/
 302 struct qeth_hdr_ext_tso {
 303         __u16 hdr_tot_len;
 304         __u8  imb_hdr_no;
 305         __u8  reserved;
 306         __u8  hdr_type;
 307         __u8  hdr_version;
 308         __u16 hdr_len;
 309         __u32 payload_len;
 310         __u16 mss;
 311         __u16 dg_hdr_len;
 312         __u8  padding[16];
 313 } __attribute__ ((packed));
 314
 315 struct qeth_hdr_tso {
 316         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 317         struct qeth_hdr_ext_tso ext;
 318 } __attribute__ ((packed));
 319
 320
 321 /* flags for qeth_hdr.flags */
 322 #define QETH_HDR_PASSTHRU 0x10
 323 #define QETH_HDR_IPV6     0x80
 324 #define QETH_HDR_CAST_MASK 0x07
 325 enum qeth_cast_flags {
 326         QETH_CAST_UNICAST   = 0x06,
 327         QETH_CAST_MULTICAST = 0x04,
 328         QETH_CAST_BROADCAST = 0x05,
 329         QETH_CAST_ANYCAST   = 0x07,
 330         QETH_CAST_NOCAST    = 0x00,
 331 };
 332
 333 enum qeth_layer2_frame_flags {
 334         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 335         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 336         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 337         QETH_LAYER2_FLAG_VLAN      = 0x10,
 338 };
 339
 340 enum qeth_header_ids {
 341         QETH_HEADER_TYPE_LAYER3 = 0x01,
 342         QETH_HEADER_TYPE_LAYER2 = 0x02,
 343         QETH_HEADER_TYPE_TSO    = 0x03,
 344         QETH_HEADER_TYPE_OSN    = 0x04,
 345 };
 346 /* flags for qeth_hdr.ext_flags */
 347 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 348 #define QETH_HDR_EXT_TOKEN_ID         0x02
 349 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 350 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 351 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 352 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 353 #define QETH_HDR_EXT_UDP_TSO          0x40 /*bit off for TCP*/
 354
 355 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 356 {
 357         return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
 358 }
 359
 360 enum qeth_qdio_buffer_states {
 361         /*
 362          * inbound: read out by driver; owned by hardware in order to be filled
 363          * outbound: owned by driver in order to be filled
 364          */
 365         QETH_QDIO_BUF_EMPTY,
 366         /*
 367          * inbound: filled by hardware; owned by driver in order to be read out
 368          * outbound: filled by driver; owned by hardware in order to be sent
 369          */
 370         QETH_QDIO_BUF_PRIMED,
 371 };
 372
 373 enum qeth_qdio_info_states {
 374         QETH_QDIO_UNINITIALIZED,
 375         QETH_QDIO_ALLOCATED,
 376         QETH_QDIO_ESTABLISHED,
 377         QETH_QDIO_CLEANING
 378 };
 379
 380 struct qeth_buffer_pool_entry {
 381         struct list_head list;
 382         struct list_head init_list;
 383         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 384 };
 385
 386 struct qeth_qdio_buffer_pool {
 387         struct list_head entry_list;
 388         int buf_count;
 389 };
 390
 391 struct qeth_qdio_buffer {
 392         struct qdio_buffer *buffer;
 393         /* the buffer pool entry currently associated to this buffer */
 394         struct qeth_buffer_pool_entry *pool_entry;
 395 };
 396
 397 struct qeth_qdio_q {
 398         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 399         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 400         int next_buf_to_init;
 401 } __attribute__ ((aligned(256)));
 402
 403 /* possible types of qeth large_send support */
 404 enum qeth_large_send_types {
 405         QETH_LARGE_SEND_NO,
 406         QETH_LARGE_SEND_EDDP,
 407         QETH_LARGE_SEND_TSO,
 408 };
 409
 410 struct qeth_qdio_out_buffer {
 411         struct qdio_buffer *buffer;
 412         atomic_t state;
 413         int next_element_to_fill;
 414         struct sk_buff_head skb_list;
 415         struct list_head ctx_list;
 416         int is_header[16];
 417 };
 418
 419 struct qeth_card;
 420
 421 enum qeth_out_q_states {
 422        QETH_OUT_Q_UNLOCKED,
 423        QETH_OUT_Q_LOCKED,
 424        QETH_OUT_Q_LOCKED_FLUSH,
 425 };
 426
 427 struct qeth_qdio_out_q {
 428         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 429         struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 430         int queue_no;
 431         struct qeth_card *card;
 432         atomic_t state;
 433         int do_pack;
 434         /*
 435          * index of buffer to be filled by driver; state EMPTY or PACKING
 436          */
 437         int next_buf_to_fill;
 438         /*
 439          * number of buffers that are currently filled (PRIMED)
 440          * -> these buffers are hardware-owned
 441          */
 442         atomic_t used_buffers;
 443         /* indicates whether PCI flag must be set (or if one is outstanding) */
 444         atomic_t set_pci_flags_count;
 445 } __attribute__ ((aligned(256)));
 446
 447 struct qeth_qdio_info {
 448         atomic_t state;
 449         /* input */
 450         struct qeth_qdio_q *in_q;
 451         struct qeth_qdio_buffer_pool in_buf_pool;
 452         struct qeth_qdio_buffer_pool init_pool;
 453         int in_buf_size;
 454
 455         /* output */
 456         int no_out_queues;
 457         struct qeth_qdio_out_q **out_qs;
 458
 459         /* priority queueing */
 460         int do_prio_queueing;
 461         int default_out_queue;
 462 };
 463
 464 enum qeth_send_errors {
 465         QETH_SEND_ERROR_NONE,
 466         QETH_SEND_ERROR_LINK_FAILURE,
 467         QETH_SEND_ERROR_RETRY,
 468         QETH_SEND_ERROR_KICK_IT,
 469 };
 470
 471 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 472 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 473 /* tr mc mac is longer, but that will be enough to detect mc frames */
 474 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 475 #define QETH_TR_MAC_C        0x0300 /* canonical */
 476
 477 #define DEFAULT_ADD_HHLEN 0
 478 #define MAX_ADD_HHLEN 1024
 479
 480 /**
 481  * buffer stuff for read channel
 482  */
 483 #define QETH_CMD_BUFFER_NO      8
 484
 485 /**
 486  *  channel state machine
 487  */
 488 enum qeth_channel_states {
 489         CH_STATE_UP,
 490         CH_STATE_DOWN,
 491         CH_STATE_ACTIVATING,
 492         CH_STATE_HALTED,
 493         CH_STATE_STOPPED,
 494         CH_STATE_RCD,
 495         CH_STATE_RCD_DONE,
 496 };
 497 /**
 498  * card state machine
 499  */
 500 enum qeth_card_states {
 501         CARD_STATE_DOWN,
 502         CARD_STATE_HARDSETUP,
 503         CARD_STATE_SOFTSETUP,
 504         CARD_STATE_UP,
 505         CARD_STATE_RECOVER,
 506 };
 507
 508 /**
 509  * Protocol versions
 510  */
 511 enum qeth_prot_versions {
 512         QETH_PROT_IPV4 = 0x0004,
 513         QETH_PROT_IPV6 = 0x0006,
 514 };
 515
 516 enum qeth_ip_types {
 517         QETH_IP_TYPE_NORMAL,
 518         QETH_IP_TYPE_VIPA,
 519         QETH_IP_TYPE_RXIP,
 520         QETH_IP_TYPE_DEL_ALL_MC,
 521 };
 522
 523 enum qeth_cmd_buffer_state {
 524         BUF_STATE_FREE,
 525         BUF_STATE_LOCKED,
 526         BUF_STATE_PROCESSED,
 527 };
 528
 529 struct qeth_ipato {
 530         int enabled;
 531         int invert4;
 532         int invert6;
 533         struct list_head entries;
 534 };
 535
 536 struct qeth_channel;
 537
 538 struct qeth_cmd_buffer {
 539         enum qeth_cmd_buffer_state state;
 540         struct qeth_channel *channel;
 541         unsigned char *data;
 542         int rc;
 543         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 544 };
 545
 546 /**
 547  * definition of a qeth channel, used for read and write
 548  */
 549 struct qeth_channel {
 550         enum qeth_channel_states state;
 551         struct ccw1 ccw;
 552         spinlock_t iob_lock;
 553         wait_queue_head_t wait_q;
 554         struct tasklet_struct irq_tasklet;
 555         struct ccw_device *ccwdev;
 556 /*command buffer for control data*/
 557         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 558         atomic_t irq_pending;
 559         int io_buf_no;
 560         int buf_no;
 561 };
 562
 563 /**
 564  *  OSA card related definitions
 565  */
 566 struct qeth_token {
 567         __u32 issuer_rm_w;
 568         __u32 issuer_rm_r;
 569         __u32 cm_filter_w;
 570         __u32 cm_filter_r;
 571         __u32 cm_connection_w;
 572         __u32 cm_connection_r;
 573         __u32 ulp_filter_w;
 574         __u32 ulp_filter_r;
 575         __u32 ulp_connection_w;
 576         __u32 ulp_connection_r;
 577 };
 578
 579 struct qeth_seqno {
 580         __u32 trans_hdr;
 581         __u32 pdu_hdr;
 582         __u32 pdu_hdr_ack;
 583         __u16 ipa;
 584         __u32 pkt_seqno;
 585 };
 586
 587 struct qeth_reply {
 588         struct list_head list;
 589         wait_queue_head_t wait_q;
 590         int (*callback)(struct qeth_card *, struct qeth_reply *,
 591                 unsigned long);
 592         u32 seqno;
 593         unsigned long offset;
 594         atomic_t received;
 595         int rc;
 596         void *param;
 597         struct qeth_card *card;
 598         atomic_t refcnt;
 599 };
 600
 601
 602 struct qeth_card_blkt {
 603         int time_total;
 604         int inter_packet;
 605         int inter_packet_jumbo;
 606 };
 607
 608 #define QETH_BROADCAST_WITH_ECHO    0x01
 609 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 610 #define QETH_LAYER2_MAC_READ        0x01
 611 #define QETH_LAYER2_MAC_REGISTERED  0x02
 612 struct qeth_card_info {
 613         unsigned short unit_addr2;
 614         unsigned short cula;
 615         unsigned short chpid;
 616         __u16 func_level;
 617         char mcl_level[QETH_MCL_LENGTH + 1];
 618         int guestlan;
 619         int mac_bits;
 620         int portname_required;
 621         int portno;
 622         char portname[9];
 623         enum qeth_card_types type;
 624         enum qeth_link_types link_type;
 625         int is_multicast_different;
 626         int initial_mtu;
 627         int max_mtu;
 628         int broadcast_capable;
 629         int unique_id;
 630         struct qeth_card_blkt blkt;
 631         __u32 csum_mask;
 632         enum qeth_ipa_promisc_modes promisc_mode;
 633 };
 634
 635 struct qeth_card_options {
 636         struct qeth_routing_info route4;
 637         struct qeth_ipa_info ipa4;
 638         struct qeth_ipa_info adp; /*Adapter parameters*/
 639         struct qeth_routing_info route6;
 640         struct qeth_ipa_info ipa6;
 641         enum qeth_checksum_types checksum_type;
 642         int broadcast_mode;
 643         int macaddr_mode;
 644         int fake_broadcast;
 645         int add_hhlen;
 646         int layer2;
 647         enum qeth_large_send_types large_send;
 648         int performance_stats;
 649         int rx_sg_cb;
 650 };
 651
 652 /*
 653  * thread bits for qeth_card thread masks
 654  */
 655 enum qeth_threads {
 656         QETH_RECOVER_THREAD = 1,
 657 };
 658
 659 struct qeth_osn_info {
 660         int (*assist_cb)(struct net_device *dev, void *data);
 661         int (*data_cb)(struct sk_buff *skb);
 662 };
 663
 664 enum qeth_discipline_id {
 665         QETH_DISCIPLINE_LAYER3 = 0,
 666         QETH_DISCIPLINE_LAYER2 = 1,
 667 };
 668
 669 struct qeth_discipline {
 670         qdio_handler_t *input_handler;
 671         qdio_handler_t *output_handler;
 672         int (*recover)(void *ptr);
 673         struct ccwgroup_driver *ccwgdriver;
 674 };
 675
 676 struct qeth_vlan_vid {
 677         struct list_head list;
 678         unsigned short vid;
 679 };
 680
 681 struct qeth_mc_mac {
 682         struct list_head list;
 683         __u8 mc_addr[MAX_ADDR_LEN];
 684         unsigned char mc_addrlen;
 685         int is_vmac;
 686 };
 687
 688 struct qeth_card {
 689         struct list_head list;
 690         enum qeth_card_states state;
 691         int lan_online;
 692         spinlock_t lock;
 693         struct ccwgroup_device *gdev;
 694         struct qeth_channel read;
 695         struct qeth_channel write;
 696         struct qeth_channel data;
 697
 698         struct net_device *dev;
 699         struct net_device_stats stats;
 700
 701         struct qeth_card_info info;
 702         struct qeth_token token;
 703         struct qeth_seqno seqno;
 704         struct qeth_card_options options;
 705
 706         wait_queue_head_t wait_q;
 707         spinlock_t vlanlock;
 708         spinlock_t mclock;
 709         struct vlan_group *vlangrp;
 710         struct list_head vid_list;
 711         struct list_head mc_list;
 712         struct work_struct kernel_thread_starter;
 713         spinlock_t thread_mask_lock;
 714         unsigned long thread_start_mask;
 715         unsigned long thread_allowed_mask;
 716         unsigned long thread_running_mask;
 717         spinlock_t ip_lock;
 718         struct list_head ip_list;
 719         struct list_head *ip_tbd_list;
 720         struct qeth_ipato ipato;
 721         struct list_head cmd_waiter_list;
 722         /* QDIO buffer handling */
 723         struct qeth_qdio_info qdio;
 724         struct qeth_perf_stats perf_stats;
 725         int use_hard_stop;
 726         struct qeth_osn_info osn_info;
 727         struct qeth_discipline discipline;
 728         atomic_t force_alloc_skb;
 729         struct service_level qeth_service_level;
 730 };
 731
 732 struct qeth_card_list_struct {
 733         struct list_head list;
 734         rwlock_t rwlock;
 735 };
 736
 737 /*some helper functions*/
 738 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 739
 740 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 741 {
 742         struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 743                 dev_get_drvdata(&cdev->dev))->dev);
 744         return card;
 745 }
 746
 747 static inline int qeth_get_micros(void)
 748 {
 749         return (int) (get_clock() >> 12);
 750 }
 751
 752 static inline int qeth_get_ip_version(struct sk_buff *skb)
 753 {
 754         switch (skb->protocol) {
 755         case ETH_P_IPV6:
 756                 return 6;
 757         case ETH_P_IP:
 758                 return 4;
 759         default:
 760                 return 0;
 761         }
 762 }
 763
 764 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 765                 struct qeth_buffer_pool_entry *entry)
 766 {
 767         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 768 }
 769
 770 struct qeth_eddp_context;
 771 extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
 772 extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
 773 const char *qeth_get_cardname_short(struct qeth_card *);
 774 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 775 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 776 void qeth_core_free_discipline(struct qeth_card *);
 777 int qeth_core_create_device_attributes(struct device *);
 778 void qeth_core_remove_device_attributes(struct device *);
 779 int qeth_core_create_osn_attributes(struct device *);
 780 void qeth_core_remove_osn_attributes(struct device *);
 781
 782 /* exports for qeth discipline device drivers */
 783 extern struct qeth_card_list_struct qeth_core_card_list;
 784 extern struct kmem_cache *qeth_core_header_cache;
 785 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 786
 787 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 788 int qeth_threads_running(struct qeth_card *, unsigned long);
 789 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 790 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 791 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 792 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 793 int qeth_core_hardsetup_card(struct qeth_card *);
 794 void qeth_print_status_message(struct qeth_card *);
 795 int qeth_init_qdio_queues(struct qeth_card *);
 796 int qeth_send_startlan(struct qeth_card *);
 797 int qeth_send_stoplan(struct qeth_card *);
 798 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 799                   int (*reply_cb)
 800                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 801                   void *);
 802 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 803                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 804 int qeth_query_setadapterparms(struct qeth_card *);
 805 int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *);
 806 void qeth_queue_input_buffer(struct qeth_card *, int);
 807 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 808                 struct qdio_buffer *, struct qdio_buffer_element **, int *,
 809                 struct qeth_hdr **);
 810 void qeth_schedule_recovery(struct qeth_card *);
 811 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 812                         int, int, int, unsigned long);
 813 void qeth_clear_ipacmd_list(struct qeth_card *);
 814 int qeth_qdio_clear_card(struct qeth_card *, int);
 815 void qeth_clear_working_pool_list(struct qeth_card *);
 816 void qeth_clear_cmd_buffers(struct qeth_channel *);
 817 void qeth_clear_qdio_buffers(struct qeth_card *);
 818 void qeth_setadp_promisc_mode(struct qeth_card *);
 819 struct net_device_stats *qeth_get_stats(struct net_device *);
 820 int qeth_change_mtu(struct net_device *, int);
 821 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 822 void qeth_tx_timeout(struct net_device *);
 823 void qeth_prepare_control_data(struct qeth_card *, int,
 824                                 struct qeth_cmd_buffer *);
 825 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 826 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 827 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 828 int qeth_mdio_read(struct net_device *, int, int);
 829 int qeth_snmp_command(struct qeth_card *, char __user *);
 830 int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);
 831 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
 832 int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
 833                                         unsigned long);
 834 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 835         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 836         void *reply_param);
 837 int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
 838 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 839 int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
 840 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 841                         struct sk_buff *, struct qeth_hdr *, int,
 842                         struct qeth_eddp_context *, int, int);
 843 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 844                     struct sk_buff *, struct qeth_hdr *,
 845                     int, struct qeth_eddp_context *);
 846 int qeth_core_get_stats_count(struct net_device *);
 847 void qeth_core_get_ethtool_stats(struct net_device *,
 848                                 struct ethtool_stats *, u64 *);
 849 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 850 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 851 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...);
 852 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 853
 854 /* exports for OSN */
 855 int qeth_osn_assist(struct net_device *, void *, int);
 856 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 857                 int (*assist_cb)(struct net_device *, void *),
 858                 int (*data_cb)(struct sk_buff *));
 859 void qeth_osn_deregister(struct net_device *);
 860
 861 #endif /* __QETH_CORE_H__ */