linux/drivers/s390/net/qeth_core.h
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   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 */
  37enum 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
  44struct 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 */
 100struct 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 */
 149struct qeth_routing_info {
 150        enum qeth_routing_types type;
 151};
 152
 153/* IPA stuff */
 154struct qeth_ipa_info {
 155        __u32 supported_funcs;
 156        __u32 enabled_funcs;
 157};
 158
 159static 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
 165static 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
 266struct 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
 279struct 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
 291struct 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
 302struct 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*/
 311struct 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
 324struct 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
 334enum 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
 342enum 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
 349enum 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
 364static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 365{
 366        return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
 367}
 368
 369enum 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
 397enum qeth_qdio_info_states {
 398        QETH_QDIO_UNINITIALIZED,
 399        QETH_QDIO_ALLOCATED,
 400        QETH_QDIO_ESTABLISHED,
 401        QETH_QDIO_CLEANING
 402};
 403
 404struct 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
 410struct qeth_qdio_buffer_pool {
 411        struct list_head entry_list;
 412        int buf_count;
 413};
 414
 415struct 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
 422struct 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
 428struct 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
 440struct qeth_card;
 441
 442enum qeth_out_q_states {
 443       QETH_OUT_Q_UNLOCKED,
 444       QETH_OUT_Q_LOCKED,
 445       QETH_OUT_Q_LOCKED_FLUSH,
 446};
 447
 448struct 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
 469struct 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
 489enum 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 */
 513enum 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 */
 525enum 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 */
 536enum qeth_prot_versions {
 537        QETH_PROT_IPV4 = 0x0004,
 538        QETH_PROT_IPV6 = 0x0006,
 539};
 540
 541enum 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
 548enum qeth_cmd_buffer_state {
 549        BUF_STATE_FREE,
 550        BUF_STATE_LOCKED,
 551        BUF_STATE_PROCESSED,
 552};
 553
 554enum qeth_cq {
 555        QETH_CQ_DISABLED = 0,
 556        QETH_CQ_ENABLED = 1,
 557        QETH_CQ_NOTAVAILABLE = 2,
 558};
 559
 560struct qeth_ipato {
 561        int enabled;
 562        int invert4;
 563        int invert6;
 564        struct list_head entries;
 565};
 566
 567struct qeth_channel;
 568
 569struct 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 */
 580struct 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 */
 597struct 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
 610struct qeth_seqno {
 611        __u32 trans_hdr;
 612        __u32 pdu_hdr;
 613        __u32 pdu_hdr_ack;
 614        __u16 ipa;
 615        __u32 pkt_seqno;
 616};
 617
 618struct 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
 633struct 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
 643struct 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
 669struct 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 */
 690enum qeth_threads {
 691        QETH_RECOVER_THREAD = 1,
 692};
 693
 694struct qeth_osn_info {
 695        int (*assist_cb)(struct net_device *dev, void *data);
 696        int (*data_cb)(struct sk_buff *skb);
 697};
 698
 699enum qeth_discipline_id {
 700        QETH_DISCIPLINE_LAYER3 = 0,
 701        QETH_DISCIPLINE_LAYER2 = 1,
 702};
 703
 704struct 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
 721struct qeth_vlan_vid {
 722        struct list_head list;
 723        unsigned short vid;
 724};
 725
 726struct 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
 733struct 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 128
 742
 743struct 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
 797struct qeth_card_list_struct {
 798        struct list_head list;
 799        rwlock_t rwlock;
 800};
 801
 802struct 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
 813static 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
 820static inline int qeth_get_micros(void)
 821{
 822        return (int) (get_tod_clock() >> 12);
 823}
 824
 825static 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
 838static 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
 844static 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
 850extern struct qeth_discipline qeth_l2_discipline;
 851extern struct qeth_discipline qeth_l3_discipline;
 852extern const struct attribute_group *qeth_generic_attr_groups[];
 853extern const struct attribute_group *qeth_osn_attr_groups[];
 854
 855const char *qeth_get_cardname_short(struct qeth_card *);
 856int qeth_realloc_buffer_pool(struct qeth_card *, int);
 857int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 858void qeth_core_free_discipline(struct qeth_card *);
 859void qeth_buffer_reclaim_work(struct work_struct *);
 860
 861/* exports for qeth discipline device drivers */
 862extern struct qeth_card_list_struct qeth_core_card_list;
 863extern struct kmem_cache *qeth_core_header_cache;
 864extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 865
 866void qeth_set_recovery_task(struct qeth_card *);
 867void qeth_clear_recovery_task(struct qeth_card *);
 868void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 869int qeth_threads_running(struct qeth_card *, unsigned long);
 870int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 871int qeth_do_run_thread(struct qeth_card *, unsigned long);
 872void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 873void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 874int qeth_core_hardsetup_card(struct qeth_card *);
 875void qeth_print_status_message(struct qeth_card *);
 876int qeth_init_qdio_queues(struct qeth_card *);
 877int qeth_send_startlan(struct qeth_card *);
 878int qeth_send_stoplan(struct qeth_card *);
 879int 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 *);
 883struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 884                        enum qeth_ipa_cmds, enum qeth_prot_versions);
 885int qeth_query_setadapterparms(struct qeth_card *);
 886int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
 887                unsigned int, const char *);
 888void qeth_queue_input_buffer(struct qeth_card *, int);
 889struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 890                struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 891                struct qeth_hdr **);
 892void qeth_schedule_recovery(struct qeth_card *);
 893void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 894void qeth_qdio_input_handler(struct ccw_device *,
 895                unsigned int, unsigned int, int,
 896                int, unsigned long);
 897void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 898                        int, int, int, unsigned long);
 899void qeth_clear_ipacmd_list(struct qeth_card *);
 900int qeth_qdio_clear_card(struct qeth_card *, int);
 901void qeth_clear_working_pool_list(struct qeth_card *);
 902void qeth_clear_cmd_buffers(struct qeth_channel *);
 903void qeth_clear_qdio_buffers(struct qeth_card *);
 904void qeth_setadp_promisc_mode(struct qeth_card *);
 905struct net_device_stats *qeth_get_stats(struct net_device *);
 906int qeth_change_mtu(struct net_device *, int);
 907int qeth_setadpparms_change_macaddr(struct qeth_card *);
 908void qeth_tx_timeout(struct net_device *);
 909void qeth_prepare_control_data(struct qeth_card *, int,
 910                                struct qeth_cmd_buffer *);
 911void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 912void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 913struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 914int qeth_mdio_read(struct net_device *, int, int);
 915int qeth_snmp_command(struct qeth_card *, char __user *);
 916int qeth_query_oat_command(struct qeth_card *, char __user *);
 917int 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);
 920int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 921int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
 922int qeth_get_elements_for_frags(struct sk_buff *);
 923int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 924                        struct sk_buff *, struct qeth_hdr *, int, int, int);
 925int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 926                    struct sk_buff *, struct qeth_hdr *, int);
 927int qeth_core_get_sset_count(struct net_device *, int);
 928void qeth_core_get_ethtool_stats(struct net_device *,
 929                                struct ethtool_stats *, u64 *);
 930void qeth_core_get_strings(struct net_device *, u32, u8 *);
 931void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 932void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 933int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 934int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
 935int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
 936int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 937int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 938int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 939void qeth_trace_features(struct qeth_card *);
 940void qeth_close_dev(struct qeth_card *);
 941
 942/* exports for OSN */
 943int qeth_osn_assist(struct net_device *, void *, int);
 944int 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 *));
 947void qeth_osn_deregister(struct net_device *);
 948
 949#endif /* __QETH_CORE_H__ */
 950