drivers/s390/net/qeth_core.h

   1 /*
   2  *    Copyright IBM Corp. 2007
   3  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   4  *               Frank Pavlic <fpavlic@de.ibm.com>,
   5  *               Thomas Spatzier <tspat@de.ibm.com>,
   6  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   7  */
   8
   9 #ifndef __QETH_CORE_H__
  10 #define __QETH_CORE_H__
  11
  12 #include <linux/if.h>
  13 #include <linux/if_arp.h>
  14 #include <linux/etherdevice.h>
  15 #include <linux/if_vlan.h>
  16 #include <linux/ctype.h>
  17 #include <linux/in6.h>
  18 #include <linux/bitops.h>
  19 #include <linux/seq_file.h>
  20 #include <linux/ethtool.h>
  21
  22 #include <net/ipv6.h>
  23 #include <net/if_inet6.h>
  24 #include <net/addrconf.h>
  25
  26 #include <asm/debug.h>
  27 #include <asm/qdio.h>
  28 #include <asm/ccwdev.h>
  29 #include <asm/ccwgroup.h>
  30 #include <asm/sysinfo.h>
  31
  32 #include "qeth_core_mpc.h"
  33
  34 /**
  35  * Debug Facility stuff
  36  */
  37 enum qeth_dbf_names {
  38         QETH_DBF_SETUP,
  39         QETH_DBF_MSG,
  40         QETH_DBF_CTRL,
  41         QETH_DBF_INFOS  /* must be last element */
  42 };
  43
  44 struct qeth_dbf_info {
  45         char name[DEBUG_MAX_NAME_LEN];
  46         int pages;
  47         int areas;
  48         int len;
  49         int level;
  50         struct debug_view *view;
  51         debug_info_t *id;
  52 };
  53
  54 #define QETH_DBF_CTRL_LEN 256
  55
  56 #define QETH_DBF_TEXT(name, level, text) \
  57         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  58
  59 #define QETH_DBF_HEX(name, level, addr, len) \
  60         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  61
  62 #define QETH_DBF_MESSAGE(level, text...) \
  63         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  64
  65 #define QETH_DBF_TEXT_(name, level, text...) \
  66         qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
  67
  68 #define QETH_CARD_TEXT(card, level, text) \
  69         debug_text_event(card->debug, level, text)
  70
  71 #define QETH_CARD_HEX(card, level, addr, len) \
  72         debug_event(card->debug, level, (void *)(addr), len)
  73
  74 #define QETH_CARD_MESSAGE(card, text...) \
  75         debug_sprintf_event(card->debug, level, text)
  76
  77 #define QETH_CARD_TEXT_(card, level, text...) \
  78         qeth_dbf_longtext(card->debug, level, text)
  79
  80 #define SENSE_COMMAND_REJECT_BYTE 0
  81 #define SENSE_COMMAND_REJECT_FLAG 0x80
  82 #define SENSE_RESETTING_EVENT_BYTE 1
  83 #define SENSE_RESETTING_EVENT_FLAG 0x80
  84
  85 /*
  86  * Common IO related definitions
  87  */
  88 #define CARD_RDEV(card) card->read.ccwdev
  89 #define CARD_WDEV(card) card->write.ccwdev
  90 #define CARD_DDEV(card) card->data.ccwdev
  91 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  92 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  93 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  94 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  95 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
  96
  97 /**
  98  * card stuff
  99  */
 100 struct qeth_perf_stats {
 101         unsigned int bufs_rec;
 102         unsigned int bufs_sent;
 103
 104         unsigned int skbs_sent_pack;
 105         unsigned int bufs_sent_pack;
 106
 107         unsigned int sc_dp_p;
 108         unsigned int sc_p_dp;
 109         /* qdio_cq_handler: number of times called, time spent in */
 110         __u64 cq_start_time;
 111         unsigned int cq_cnt;
 112         unsigned int cq_time;
 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_RECLAIM_WORK_TIME  HZ
 217 #define QETH_HEADER_SIZE        32
 218 #define QETH_MAX_PORTNO         15
 219
 220 /*IPv6 address autoconfiguration stuff*/
 221 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 222 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 223
 224 /*****************************************************************************/
 225 /* QDIO queue and buffer handling                                            */
 226 /*****************************************************************************/
 227 #define QETH_MAX_QUEUES 4
 228 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 229 #define QETH_IN_BUF_COUNT_DEFAULT 64
 230 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
 231 #define QETH_IN_BUF_COUNT_MIN 8
 232 #define QETH_IN_BUF_COUNT_MAX 128
 233 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 234 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 235                  ((card)->qdio.in_buf_pool.buf_count / 2)
 236
 237 /* buffers we have to be behind before we get a PCI */
 238 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 239 /*enqueued free buffers left before we get a PCI*/
 240 #define QETH_PCI_THRESHOLD_B(card) 0
 241 /*not used unless the microcode gets patched*/
 242 #define QETH_PCI_TIMER_VALUE(card) 3
 243
 244 /* priority queing */
 245 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 246 #define QETH_DEFAULT_QUEUE    2
 247 #define QETH_NO_PRIO_QUEUEING 0
 248 #define QETH_PRIO_Q_ING_PREC  1
 249 #define QETH_PRIO_Q_ING_TOS   2
 250 #define IP_TOS_LOWDELAY 0x10
 251 #define IP_TOS_HIGHTHROUGHPUT 0x08
 252 #define IP_TOS_HIGHRELIABILITY 0x04
 253 #define IP_TOS_NOTIMPORTANT 0x02
 254
 255 /* Packing */
 256 #define QETH_LOW_WATERMARK_PACK  2
 257 #define QETH_HIGH_WATERMARK_PACK 5
 258 #define QETH_WATERMARK_PACK_FUZZ 1
 259
 260 #define QETH_IP_HEADER_SIZE 40
 261
 262 /* large receive scatter gather copy break */
 263 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 264 #define QETH_RX_PULL_LEN 256
 265
 266 struct qeth_hdr_layer3 {
 267         __u8  id;
 268         __u8  flags;
 269         __u16 inbound_checksum; /*TSO:__u16 seqno */
 270         __u32 token;            /*TSO: __u32 reserved */
 271         __u16 length;
 272         __u8  vlan_prio;
 273         __u8  ext_flags;
 274         __u16 vlan_id;
 275         __u16 frame_offset;
 276         __u8  dest_addr[16];
 277 } __attribute__ ((packed));
 278
 279 struct qeth_hdr_layer2 {
 280         __u8 id;
 281         __u8 flags[3];
 282         __u8 port_no;
 283         __u8 hdr_length;
 284         __u16 pkt_length;
 285         __u16 seq_no;
 286         __u16 vlan_id;
 287         __u32 reserved;
 288         __u8 reserved2[16];
 289 } __attribute__ ((packed));
 290
 291 struct qeth_hdr_osn {
 292         __u8 id;
 293         __u8 reserved;
 294         __u16 seq_no;
 295         __u16 reserved2;
 296         __u16 control_flags;
 297         __u16 pdu_length;
 298         __u8 reserved3[18];
 299         __u32 ccid;
 300 } __attribute__ ((packed));
 301
 302 struct qeth_hdr {
 303         union {
 304                 struct qeth_hdr_layer2 l2;
 305                 struct qeth_hdr_layer3 l3;
 306                 struct qeth_hdr_osn    osn;
 307         } hdr;
 308 } __attribute__ ((packed));
 309
 310 /*TCP Segmentation Offload header*/
 311 struct qeth_hdr_ext_tso {
 312         __u16 hdr_tot_len;
 313         __u8  imb_hdr_no;
 314         __u8  reserved;
 315         __u8  hdr_type;
 316         __u8  hdr_version;
 317         __u16 hdr_len;
 318         __u32 payload_len;
 319         __u16 mss;
 320         __u16 dg_hdr_len;
 321         __u8  padding[16];
 322 } __attribute__ ((packed));
 323
 324 struct qeth_hdr_tso {
 325         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 326         struct qeth_hdr_ext_tso ext;
 327 } __attribute__ ((packed));
 328
 329
 330 /* flags for qeth_hdr.flags */
 331 #define QETH_HDR_PASSTHRU 0x10
 332 #define QETH_HDR_IPV6     0x80
 333 #define QETH_HDR_CAST_MASK 0x07
 334 enum qeth_cast_flags {
 335         QETH_CAST_UNICAST   = 0x06,
 336         QETH_CAST_MULTICAST = 0x04,
 337         QETH_CAST_BROADCAST = 0x05,
 338         QETH_CAST_ANYCAST   = 0x07,
 339         QETH_CAST_NOCAST    = 0x00,
 340 };
 341
 342 enum qeth_layer2_frame_flags {
 343         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 344         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 345         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 346         QETH_LAYER2_FLAG_VLAN      = 0x10,
 347 };
 348
 349 enum qeth_header_ids {
 350         QETH_HEADER_TYPE_LAYER3 = 0x01,
 351         QETH_HEADER_TYPE_LAYER2 = 0x02,
 352         QETH_HEADER_TYPE_TSO    = 0x03,
 353         QETH_HEADER_TYPE_OSN    = 0x04,
 354 };
 355 /* flags for qeth_hdr.ext_flags */
 356 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 357 #define QETH_HDR_EXT_TOKEN_ID         0x02
 358 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 359 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 360 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 361 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 362 #define QETH_HDR_EXT_UDP              0x40 /*bit off for TCP*/
 363
 364 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 365 {
 366         return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
 367 }
 368
 369 enum qeth_qdio_buffer_states {
 370         /*
 371          * inbound: read out by driver; owned by hardware in order to be filled
 372          * outbound: owned by driver in order to be filled
 373          */
 374         QETH_QDIO_BUF_EMPTY,
 375         /*
 376          * inbound: filled by hardware; owned by driver in order to be read out
 377          * outbound: filled by driver; owned by hardware in order to be sent
 378          */
 379         QETH_QDIO_BUF_PRIMED,
 380         /*
 381          * inbound: not applicable
 382          * outbound: identified to be pending in TPQ
 383          */
 384         QETH_QDIO_BUF_PENDING,
 385         /*
 386          * inbound: not applicable
 387          * outbound: found in completion queue
 388          */
 389         QETH_QDIO_BUF_IN_CQ,
 390         /*
 391          * inbound: not applicable
 392          * outbound: handled via transfer pending / completion queue
 393          */
 394         QETH_QDIO_BUF_HANDLED_DELAYED,
 395 };
 396
 397 enum qeth_qdio_info_states {
 398         QETH_QDIO_UNINITIALIZED,
 399         QETH_QDIO_ALLOCATED,
 400         QETH_QDIO_ESTABLISHED,
 401         QETH_QDIO_CLEANING
 402 };
 403
 404 struct qeth_buffer_pool_entry {
 405         struct list_head list;
 406         struct list_head init_list;
 407         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 408 };
 409
 410 struct qeth_qdio_buffer_pool {
 411         struct list_head entry_list;
 412         int buf_count;
 413 };
 414
 415 struct qeth_qdio_buffer {
 416         struct qdio_buffer *buffer;
 417         /* the buffer pool entry currently associated to this buffer */
 418         struct qeth_buffer_pool_entry *pool_entry;
 419         struct sk_buff *rx_skb;
 420 };
 421
 422 struct qeth_qdio_q {
 423         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 424         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 425         int next_buf_to_init;
 426 } __attribute__ ((aligned(256)));
 427
 428 struct qeth_qdio_out_buffer {
 429         struct qdio_buffer *buffer;
 430         atomic_t state;
 431         int next_element_to_fill;
 432         struct sk_buff_head skb_list;
 433         int is_header[16];
 434
 435         struct qaob *aob;
 436         struct qeth_qdio_out_q *q;
 437         struct qeth_qdio_out_buffer *next_pending;
 438 };
 439
 440 struct qeth_card;
 441
 442 enum qeth_out_q_states {
 443        QETH_OUT_Q_UNLOCKED,
 444        QETH_OUT_Q_LOCKED,
 445        QETH_OUT_Q_LOCKED_FLUSH,
 446 };
 447
 448 struct qeth_qdio_out_q {
 449         struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 450         struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
 451         struct qdio_outbuf_state *bufstates; /* convenience pointer */
 452         int queue_no;
 453         struct qeth_card *card;
 454         atomic_t state;
 455         int do_pack;
 456         /*
 457          * index of buffer to be filled by driver; state EMPTY or PACKING
 458          */
 459         int next_buf_to_fill;
 460         /*
 461          * number of buffers that are currently filled (PRIMED)
 462          * -> these buffers are hardware-owned
 463          */
 464         atomic_t used_buffers;
 465         /* indicates whether PCI flag must be set (or if one is outstanding) */
 466         atomic_t set_pci_flags_count;
 467 } __attribute__ ((aligned(256)));
 468
 469 struct qeth_qdio_info {
 470         atomic_t state;
 471         /* input */
 472         int no_in_queues;
 473         struct qeth_qdio_q *in_q;
 474         struct qeth_qdio_q *c_q;
 475         struct qeth_qdio_buffer_pool in_buf_pool;
 476         struct qeth_qdio_buffer_pool init_pool;
 477         int in_buf_size;
 478
 479         /* output */
 480         int no_out_queues;
 481         struct qeth_qdio_out_q **out_qs;
 482         struct qdio_outbuf_state *out_bufstates;
 483
 484         /* priority queueing */
 485         int do_prio_queueing;
 486         int default_out_queue;
 487 };
 488
 489 enum qeth_send_errors {
 490         QETH_SEND_ERROR_NONE,
 491         QETH_SEND_ERROR_LINK_FAILURE,
 492         QETH_SEND_ERROR_RETRY,
 493         QETH_SEND_ERROR_KICK_IT,
 494 };
 495
 496 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 497 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 498 /* tr mc mac is longer, but that will be enough to detect mc frames */
 499 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 500 #define QETH_TR_MAC_C        0x0300 /* canonical */
 501
 502 #define DEFAULT_ADD_HHLEN 0
 503 #define MAX_ADD_HHLEN 1024
 504
 505 /**
 506  * buffer stuff for read channel
 507  */
 508 #define QETH_CMD_BUFFER_NO      8
 509
 510 /**
 511  *  channel state machine
 512  */
 513 enum qeth_channel_states {
 514         CH_STATE_UP,
 515         CH_STATE_DOWN,
 516         CH_STATE_ACTIVATING,
 517         CH_STATE_HALTED,
 518         CH_STATE_STOPPED,
 519         CH_STATE_RCD,
 520         CH_STATE_RCD_DONE,
 521 };
 522 /**
 523  * card state machine
 524  */
 525 enum qeth_card_states {
 526         CARD_STATE_DOWN,
 527         CARD_STATE_HARDSETUP,
 528         CARD_STATE_SOFTSETUP,
 529         CARD_STATE_UP,
 530         CARD_STATE_RECOVER,
 531 };
 532
 533 /**
 534  * Protocol versions
 535  */
 536 enum qeth_prot_versions {
 537         QETH_PROT_IPV4 = 0x0004,
 538         QETH_PROT_IPV6 = 0x0006,
 539 };
 540
 541 enum qeth_ip_types {
 542         QETH_IP_TYPE_NORMAL,
 543         QETH_IP_TYPE_VIPA,
 544         QETH_IP_TYPE_RXIP,
 545         QETH_IP_TYPE_DEL_ALL_MC,
 546 };
 547
 548 enum qeth_cmd_buffer_state {
 549         BUF_STATE_FREE,
 550         BUF_STATE_LOCKED,
 551         BUF_STATE_PROCESSED,
 552 };
 553
 554 enum qeth_cq {
 555         QETH_CQ_DISABLED = 0,
 556         QETH_CQ_ENABLED = 1,
 557         QETH_CQ_NOTAVAILABLE = 2,
 558 };
 559
 560 struct qeth_ipato {
 561         int enabled;
 562         int invert4;
 563         int invert6;
 564         struct list_head entries;
 565 };
 566
 567 struct qeth_channel;
 568
 569 struct qeth_cmd_buffer {
 570         enum qeth_cmd_buffer_state state;
 571         struct qeth_channel *channel;
 572         unsigned char *data;
 573         int rc;
 574         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 575 };
 576
 577 /**
 578  * definition of a qeth channel, used for read and write
 579  */
 580 struct qeth_channel {
 581         enum qeth_channel_states state;
 582         struct ccw1 ccw;
 583         spinlock_t iob_lock;
 584         wait_queue_head_t wait_q;
 585         struct tasklet_struct irq_tasklet;
 586         struct ccw_device *ccwdev;
 587 /*command buffer for control data*/
 588         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 589         atomic_t irq_pending;
 590         int io_buf_no;
 591         int buf_no;
 592 };
 593
 594 /**
 595  *  OSA card related definitions
 596  */
 597 struct qeth_token {
 598         __u32 issuer_rm_w;
 599         __u32 issuer_rm_r;
 600         __u32 cm_filter_w;
 601         __u32 cm_filter_r;
 602         __u32 cm_connection_w;
 603         __u32 cm_connection_r;
 604         __u32 ulp_filter_w;
 605         __u32 ulp_filter_r;
 606         __u32 ulp_connection_w;
 607         __u32 ulp_connection_r;
 608 };
 609
 610 struct qeth_seqno {
 611         __u32 trans_hdr;
 612         __u32 pdu_hdr;
 613         __u32 pdu_hdr_ack;
 614         __u16 ipa;
 615         __u32 pkt_seqno;
 616 };
 617
 618 struct qeth_reply {
 619         struct list_head list;
 620         wait_queue_head_t wait_q;
 621         int (*callback)(struct qeth_card *, struct qeth_reply *,
 622                 unsigned long);
 623         u32 seqno;
 624         unsigned long offset;
 625         atomic_t received;
 626         int rc;
 627         void *param;
 628         struct qeth_card *card;
 629         atomic_t refcnt;
 630 };
 631
 632
 633 struct qeth_card_blkt {
 634         int time_total;
 635         int inter_packet;
 636         int inter_packet_jumbo;
 637 };
 638
 639 #define QETH_BROADCAST_WITH_ECHO    0x01
 640 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 641 #define QETH_LAYER2_MAC_READ        0x01
 642 #define QETH_LAYER2_MAC_REGISTERED  0x02
 643 struct qeth_card_info {
 644         unsigned short unit_addr2;
 645         unsigned short cula;
 646         unsigned short chpid;
 647         __u16 func_level;
 648         char mcl_level[QETH_MCL_LENGTH + 1];
 649         int guestlan;
 650         int mac_bits;
 651         int portname_required;
 652         int portno;
 653         char portname[9];
 654         enum qeth_card_types type;
 655         enum qeth_link_types link_type;
 656         int is_multicast_different;
 657         int initial_mtu;
 658         int max_mtu;
 659         int broadcast_capable;
 660         int unique_id;
 661         struct qeth_card_blkt blkt;
 662         __u32 csum_mask;
 663         __u32 tx_csum_mask;
 664         enum qeth_ipa_promisc_modes promisc_mode;
 665         __u32 diagass_support;
 666         __u32 hwtrap;
 667 };
 668
 669 struct qeth_card_options {
 670         struct qeth_routing_info route4;
 671         struct qeth_ipa_info ipa4;
 672         struct qeth_ipa_info adp; /*Adapter parameters*/
 673         struct qeth_routing_info route6;
 674         struct qeth_ipa_info ipa6;
 675         int fake_broadcast;
 676         int add_hhlen;
 677         int layer2;
 678         int performance_stats;
 679         int rx_sg_cb;
 680         enum qeth_ipa_isolation_modes isolation;
 681         enum qeth_ipa_isolation_modes prev_isolation;
 682         int sniffer;
 683         enum qeth_cq cq;
 684         char hsuid[9];
 685 };
 686
 687 /*
 688  * thread bits for qeth_card thread masks
 689  */
 690 enum qeth_threads {
 691         QETH_RECOVER_THREAD = 1,
 692 };
 693
 694 struct qeth_osn_info {
 695         int (*assist_cb)(struct net_device *dev, void *data);
 696         int (*data_cb)(struct sk_buff *skb);
 697 };
 698
 699 enum qeth_discipline_id {
 700         QETH_DISCIPLINE_LAYER3 = 0,
 701         QETH_DISCIPLINE_LAYER2 = 1,
 702 };
 703
 704 struct qeth_discipline {
 705         void (*start_poll)(struct ccw_device *, int, unsigned long);
 706         qdio_handler_t *input_handler;
 707         qdio_handler_t *output_handler;
 708         int (*recover)(void *ptr);
 709         int (*setup) (struct ccwgroup_device *);
 710         void (*remove) (struct ccwgroup_device *);
 711         int (*set_online) (struct ccwgroup_device *);
 712         int (*set_offline) (struct ccwgroup_device *);
 713         void (*shutdown)(struct ccwgroup_device *);
 714         int (*prepare) (struct ccwgroup_device *);
 715         void (*complete) (struct ccwgroup_device *);
 716         int (*freeze)(struct ccwgroup_device *);
 717         int (*thaw) (struct ccwgroup_device *);
 718         int (*restore)(struct ccwgroup_device *);
 719 };
 720
 721 struct qeth_vlan_vid {
 722         struct list_head list;
 723         unsigned short vid;
 724 };
 725
 726 struct qeth_mc_mac {
 727         struct list_head list;
 728         __u8 mc_addr[MAX_ADDR_LEN];
 729         unsigned char mc_addrlen;
 730         int is_vmac;
 731 };
 732
 733 struct qeth_rx {
 734         int b_count;
 735         int b_index;
 736         struct qdio_buffer_element *b_element;
 737         int e_offset;
 738         int qdio_err;
 739 };
 740
 741 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 742
 743 struct qeth_card {
 744         struct list_head list;
 745         enum qeth_card_states state;
 746         int lan_online;
 747         spinlock_t lock;
 748         struct ccwgroup_device *gdev;
 749         struct qeth_channel read;
 750         struct qeth_channel write;
 751         struct qeth_channel data;
 752
 753         struct net_device *dev;
 754         struct net_device_stats stats;
 755
 756         struct qeth_card_info info;
 757         struct qeth_token token;
 758         struct qeth_seqno seqno;
 759         struct qeth_card_options options;
 760
 761         wait_queue_head_t wait_q;
 762         spinlock_t vlanlock;
 763         spinlock_t mclock;
 764         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 765         struct list_head vid_list;
 766         struct list_head mc_list;
 767         struct work_struct kernel_thread_starter;
 768         spinlock_t thread_mask_lock;
 769         unsigned long thread_start_mask;
 770         unsigned long thread_allowed_mask;
 771         unsigned long thread_running_mask;
 772         struct task_struct *recovery_task;
 773         spinlock_t ip_lock;
 774         struct list_head ip_list;
 775         struct list_head *ip_tbd_list;
 776         struct qeth_ipato ipato;
 777         struct list_head cmd_waiter_list;
 778         /* QDIO buffer handling */
 779         struct qeth_qdio_info qdio;
 780         struct qeth_perf_stats perf_stats;
 781         int read_or_write_problem;
 782         struct qeth_osn_info osn_info;
 783         struct qeth_discipline *discipline;
 784         atomic_t force_alloc_skb;
 785         struct service_level qeth_service_level;
 786         struct qdio_ssqd_desc ssqd;
 787         debug_info_t *debug;
 788         struct mutex conf_mutex;
 789         struct mutex discipline_mutex;
 790         struct napi_struct napi;
 791         struct qeth_rx rx;
 792         struct delayed_work buffer_reclaim_work;
 793         int reclaim_index;
 794         struct work_struct close_dev_work;
 795 };
 796
 797 struct qeth_card_list_struct {
 798         struct list_head list;
 799         rwlock_t rwlock;
 800 };
 801
 802 struct qeth_trap_id {
 803         __u16 lparnr;
 804         char vmname[8];
 805         __u8 chpid;
 806         __u8 ssid;
 807         __u16 devno;
 808 } __packed;
 809
 810 /*some helper functions*/
 811 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 812
 813 static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 814 {
 815         struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 816                 dev_get_drvdata(&cdev->dev))->dev);
 817         return card;
 818 }
 819
 820 static inline int qeth_get_micros(void)
 821 {
 822         return (int) (get_tod_clock() >> 12);
 823 }
 824
 825 static inline int qeth_get_ip_version(struct sk_buff *skb)
 826 {
 827         struct ethhdr *ehdr = (struct ethhdr *)skb->data;
 828         switch (ehdr->h_proto) {
 829         case ETH_P_IPV6:
 830                 return 6;
 831         case ETH_P_IP:
 832                 return 4;
 833         default:
 834                 return 0;
 835         }
 836 }
 837
 838 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 839                 struct qeth_buffer_pool_entry *entry)
 840 {
 841         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 842 }
 843
 844 static inline int qeth_is_diagass_supported(struct qeth_card *card,
 845                 enum qeth_diags_cmds cmd)
 846 {
 847         return card->info.diagass_support & (__u32)cmd;
 848 }
 849
 850 extern struct qeth_discipline qeth_l2_discipline;
 851 extern struct qeth_discipline qeth_l3_discipline;
 852 extern const struct attribute_group *qeth_generic_attr_groups[];
 853 extern const struct attribute_group *qeth_osn_attr_groups[];
 854
 855 const char *qeth_get_cardname_short(struct qeth_card *);
 856 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 857 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 858 void qeth_core_free_discipline(struct qeth_card *);
 859 void qeth_buffer_reclaim_work(struct work_struct *);
 860
 861 /* exports for qeth discipline device drivers */
 862 extern struct qeth_card_list_struct qeth_core_card_list;
 863 extern struct kmem_cache *qeth_core_header_cache;
 864 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 865
 866 void qeth_set_recovery_task(struct qeth_card *);
 867 void qeth_clear_recovery_task(struct qeth_card *);
 868 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 869 int qeth_threads_running(struct qeth_card *, unsigned long);
 870 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 871 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 872 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 873 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 874 int qeth_core_hardsetup_card(struct qeth_card *);
 875 void qeth_print_status_message(struct qeth_card *);
 876 int qeth_init_qdio_queues(struct qeth_card *);
 877 int qeth_send_startlan(struct qeth_card *);
 878 int qeth_send_stoplan(struct qeth_card *);
 879 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 880                   int (*reply_cb)
 881                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 882                   void *);
 883 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 884                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 885 int qeth_query_setadapterparms(struct qeth_card *);
 886 int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
 887                 unsigned int, const char *);
 888 void qeth_queue_input_buffer(struct qeth_card *, int);
 889 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 890                 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 891                 struct qeth_hdr **);
 892 void qeth_schedule_recovery(struct qeth_card *);
 893 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 894 void qeth_qdio_input_handler(struct ccw_device *,
 895                 unsigned int, unsigned int, int,
 896                 int, unsigned long);
 897 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 898                         int, int, int, unsigned long);
 899 void qeth_clear_ipacmd_list(struct qeth_card *);
 900 int qeth_qdio_clear_card(struct qeth_card *, int);
 901 void qeth_clear_working_pool_list(struct qeth_card *);
 902 void qeth_clear_cmd_buffers(struct qeth_channel *);
 903 void qeth_clear_qdio_buffers(struct qeth_card *);
 904 void qeth_setadp_promisc_mode(struct qeth_card *);
 905 struct net_device_stats *qeth_get_stats(struct net_device *);
 906 int qeth_change_mtu(struct net_device *, int);
 907 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 908 void qeth_tx_timeout(struct net_device *);
 909 void qeth_prepare_control_data(struct qeth_card *, int,
 910                                 struct qeth_cmd_buffer *);
 911 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 912 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 913 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 914 int qeth_mdio_read(struct net_device *, int, int);
 915 int qeth_snmp_command(struct qeth_card *, char __user *);
 916 int qeth_query_oat_command(struct qeth_card *, char __user *);
 917 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 918         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 919         void *reply_param);
 920 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 921 int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
 922 int qeth_get_elements_for_frags(struct sk_buff *);
 923 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 924                         struct sk_buff *, struct qeth_hdr *, int, int, int);
 925 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 926                     struct sk_buff *, struct qeth_hdr *, int);
 927 int qeth_core_get_sset_count(struct net_device *, int);
 928 void qeth_core_get_ethtool_stats(struct net_device *,
 929                                 struct ethtool_stats *, u64 *);
 930 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 931 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 932 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 933 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 934 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
 935 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
 936 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 937 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 938 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 939 void qeth_trace_features(struct qeth_card *);
 940 void qeth_close_dev(struct qeth_card *);
 941
 942 /* exports for OSN */
 943 int qeth_osn_assist(struct net_device *, void *, int);
 944 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 945                 int (*assist_cb)(struct net_device *, void *),
 946                 int (*data_cb)(struct sk_buff *));
 947 void qeth_osn_deregister(struct net_device *);
 948
 949 #endif /* __QETH_CORE_H__ */