linux/drivers/s390/net/qeth_core.h
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   1/*
   2 *  drivers/s390/net/qeth_core.h
   3 *
   4 *    Copyright IBM Corp. 2007
   5 *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6 *               Frank Pavlic <fpavlic@de.ibm.com>,
   7 *               Thomas Spatzier <tspat@de.ibm.com>,
   8 *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9 */
  10
  11#ifndef __QETH_CORE_H__
  12#define __QETH_CORE_H__
  13
  14#include <linux/if.h>
  15#include <linux/if_arp.h>
  16#include <linux/if_tr.h>
  17#include <linux/trdevice.h>
  18#include <linux/etherdevice.h>
  19#include <linux/if_vlan.h>
  20#include <linux/ctype.h>
  21#include <linux/in6.h>
  22#include <linux/bitops.h>
  23#include <linux/seq_file.h>
  24#include <linux/ethtool.h>
  25
  26#include <net/ipv6.h>
  27#include <net/if_inet6.h>
  28#include <net/addrconf.h>
  29
  30#include <asm/debug.h>
  31#include <asm/qdio.h>
  32#include <asm/ccwdev.h>
  33#include <asm/ccwgroup.h>
  34
  35#include "qeth_core_mpc.h"
  36
  37#define KMSG_COMPONENT "qeth"
  38
  39/**
  40 * Debug Facility stuff
  41 */
  42enum qeth_dbf_names {
  43        QETH_DBF_SETUP,
  44        QETH_DBF_QERR,
  45        QETH_DBF_TRACE,
  46        QETH_DBF_MSG,
  47        QETH_DBF_SENSE,
  48        QETH_DBF_MISC,
  49        QETH_DBF_CTRL,
  50        QETH_DBF_INFOS  /* must be last element */
  51};
  52
  53struct qeth_dbf_info {
  54        char name[DEBUG_MAX_NAME_LEN];
  55        int pages;
  56        int areas;
  57        int len;
  58        int level;
  59        struct debug_view *view;
  60        debug_info_t *id;
  61};
  62
  63#define QETH_DBF_CTRL_LEN 256
  64
  65#define QETH_DBF_TEXT(name, level, text) \
  66        debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  67
  68#define QETH_DBF_HEX(name, level, addr, len) \
  69        debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  70
  71#define QETH_DBF_MESSAGE(level, text...) \
  72        debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  73
  74#define QETH_DBF_TEXT_(name, level, text...) \
  75        qeth_dbf_longtext(QETH_DBF_##name, level, text)
  76
  77/**
  78 * some more debug stuff
  79 */
  80#define PRINTK_HEADER   "qeth: "
  81
  82#define SENSE_COMMAND_REJECT_BYTE 0
  83#define SENSE_COMMAND_REJECT_FLAG 0x80
  84#define SENSE_RESETTING_EVENT_BYTE 1
  85#define SENSE_RESETTING_EVENT_FLAG 0x80
  86
  87/*
  88 * Common IO related definitions
  89 */
  90#define CARD_RDEV(card) card->read.ccwdev
  91#define CARD_WDEV(card) card->write.ccwdev
  92#define CARD_DDEV(card) card->data.ccwdev
  93#define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  94#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  95#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  96#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  97#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
  98
  99/**
 100 * card stuff
 101 */
 102struct qeth_perf_stats {
 103        unsigned int bufs_rec;
 104        unsigned int bufs_sent;
 105
 106        unsigned int skbs_sent_pack;
 107        unsigned int bufs_sent_pack;
 108
 109        unsigned int sc_dp_p;
 110        unsigned int sc_p_dp;
 111        /* qdio_input_handler: number of times called, time spent in */
 112        __u64 inbound_start_time;
 113        unsigned int inbound_cnt;
 114        unsigned int inbound_time;
 115        /* qeth_send_packet: number of times called, time spent in */
 116        __u64 outbound_start_time;
 117        unsigned int outbound_cnt;
 118        unsigned int outbound_time;
 119        /* qdio_output_handler: number of times called, time spent in */
 120        __u64 outbound_handler_start_time;
 121        unsigned int outbound_handler_cnt;
 122        unsigned int outbound_handler_time;
 123        /* number of calls to and time spent in do_QDIO for inbound queue */
 124        __u64 inbound_do_qdio_start_time;
 125        unsigned int inbound_do_qdio_cnt;
 126        unsigned int inbound_do_qdio_time;
 127        /* number of calls to and time spent in do_QDIO for outbound queues */
 128        __u64 outbound_do_qdio_start_time;
 129        unsigned int outbound_do_qdio_cnt;
 130        unsigned int outbound_do_qdio_time;
 131        /* eddp data */
 132        unsigned int large_send_bytes;
 133        unsigned int large_send_cnt;
 134        unsigned int sg_skbs_sent;
 135        unsigned int sg_frags_sent;
 136        /* initial values when measuring starts */
 137        unsigned long initial_rx_packets;
 138        unsigned long initial_tx_packets;
 139        /* inbound scatter gather data */
 140        unsigned int sg_skbs_rx;
 141        unsigned int sg_frags_rx;
 142        unsigned int sg_alloc_page_rx;
 143};
 144
 145/* Routing stuff */
 146struct qeth_routing_info {
 147        enum qeth_routing_types type;
 148};
 149
 150/* IPA stuff */
 151struct qeth_ipa_info {
 152        __u32 supported_funcs;
 153        __u32 enabled_funcs;
 154};
 155
 156static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 157                enum qeth_ipa_funcs func)
 158{
 159        return (ipa->supported_funcs & func);
 160}
 161
 162static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 163                enum qeth_ipa_funcs func)
 164{
 165        return (ipa->supported_funcs & ipa->enabled_funcs & func);
 166}
 167
 168#define qeth_adp_supported(c, f) \
 169        qeth_is_ipa_supported(&c->options.adp, f)
 170#define qeth_adp_enabled(c, f) \
 171        qeth_is_ipa_enabled(&c->options.adp, f)
 172#define qeth_is_supported(c, f) \
 173        qeth_is_ipa_supported(&c->options.ipa4, f)
 174#define qeth_is_enabled(c, f) \
 175        qeth_is_ipa_enabled(&c->options.ipa4, f)
 176#define qeth_is_supported6(c, f) \
 177        qeth_is_ipa_supported(&c->options.ipa6, f)
 178#define qeth_is_enabled6(c, f) \
 179        qeth_is_ipa_enabled(&c->options.ipa6, f)
 180#define qeth_is_ipafunc_supported(c, prot, f) \
 181         ((prot == QETH_PROT_IPV6) ? \
 182                qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 183#define qeth_is_ipafunc_enabled(c, prot, f) \
 184         ((prot == QETH_PROT_IPV6) ? \
 185                qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 186
 187#define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
 188#define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
 189#define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
 190#define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
 191
 192#define QETH_MODELLIST_ARRAY \
 193        {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \
 194        QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 195        QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 196        QETH_MAX_QUEUES, 0}, \
 197        {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \
 198        QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
 199        QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
 200        QETH_MAX_QUEUES, 0x103}, \
 201        {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \
 202        QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
 203        QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
 204        QETH_MAX_QUEUES, 0}, \
 205        {0, 0, 0, 0, 0, 0, 0, 0, 0} }
 206
 207#define QETH_REAL_CARD          1
 208#define QETH_VLAN_CARD          2
 209#define QETH_BUFSIZE            4096
 210
 211/**
 212 * some more defs
 213 */
 214#define QETH_TX_TIMEOUT         100 * HZ
 215#define QETH_RCD_TIMEOUT        60 * HZ
 216#define QETH_HEADER_SIZE        32
 217#define QETH_MAX_PORTNO         15
 218
 219/*IPv6 address autoconfiguration stuff*/
 220#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 221#define UNIQUE_ID_NOT_BY_CARD           0x10000
 222
 223/*****************************************************************************/
 224/* QDIO queue and buffer handling                                            */
 225/*****************************************************************************/
 226#define QETH_MAX_QUEUES 4
 227#define QETH_IN_BUF_SIZE_DEFAULT 65536
 228#define QETH_IN_BUF_COUNT_DEFAULT 16
 229#define QETH_IN_BUF_COUNT_MIN 8
 230#define QETH_IN_BUF_COUNT_MAX 128
 231#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 232#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 233                ((card)->qdio.in_buf_pool.buf_count / 2)
 234
 235/* buffers we have to be behind before we get a PCI */
 236#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 237/*enqueued free buffers left before we get a PCI*/
 238#define QETH_PCI_THRESHOLD_B(card) 0
 239/*not used unless the microcode gets patched*/
 240#define QETH_PCI_TIMER_VALUE(card) 3
 241
 242/* priority queing */
 243#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 244#define QETH_DEFAULT_QUEUE    2
 245#define QETH_NO_PRIO_QUEUEING 0
 246#define QETH_PRIO_Q_ING_PREC  1
 247#define QETH_PRIO_Q_ING_TOS   2
 248#define IP_TOS_LOWDELAY 0x10
 249#define IP_TOS_HIGHTHROUGHPUT 0x08
 250#define IP_TOS_HIGHRELIABILITY 0x04
 251#define IP_TOS_NOTIMPORTANT 0x02
 252
 253/* Packing */
 254#define QETH_LOW_WATERMARK_PACK  2
 255#define QETH_HIGH_WATERMARK_PACK 5
 256#define QETH_WATERMARK_PACK_FUZZ 1
 257
 258#define QETH_IP_HEADER_SIZE 40
 259
 260/* large receive scatter gather copy break */
 261#define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 262
 263struct qeth_hdr_layer3 {
 264        __u8  id;
 265        __u8  flags;
 266        __u16 inbound_checksum; /*TSO:__u16 seqno */
 267        __u32 token;            /*TSO: __u32 reserved */
 268        __u16 length;
 269        __u8  vlan_prio;
 270        __u8  ext_flags;
 271        __u16 vlan_id;
 272        __u16 frame_offset;
 273        __u8  dest_addr[16];
 274} __attribute__ ((packed));
 275
 276struct qeth_hdr_layer2 {
 277        __u8 id;
 278        __u8 flags[3];
 279        __u8 port_no;
 280        __u8 hdr_length;
 281        __u16 pkt_length;
 282        __u16 seq_no;
 283        __u16 vlan_id;
 284        __u32 reserved;
 285        __u8 reserved2[16];
 286} __attribute__ ((packed));
 287
 288struct qeth_hdr_osn {
 289        __u8 id;
 290        __u8 reserved;
 291        __u16 seq_no;
 292        __u16 reserved2;
 293        __u16 control_flags;
 294        __u16 pdu_length;
 295        __u8 reserved3[18];
 296        __u32 ccid;
 297} __attribute__ ((packed));
 298
 299struct qeth_hdr {
 300        union {
 301                struct qeth_hdr_layer2 l2;
 302                struct qeth_hdr_layer3 l3;
 303                struct qeth_hdr_osn    osn;
 304        } hdr;
 305} __attribute__ ((packed));
 306
 307/*TCP Segmentation Offload header*/
 308struct qeth_hdr_ext_tso {
 309        __u16 hdr_tot_len;
 310        __u8  imb_hdr_no;
 311        __u8  reserved;
 312        __u8  hdr_type;
 313        __u8  hdr_version;
 314        __u16 hdr_len;
 315        __u32 payload_len;
 316        __u16 mss;
 317        __u16 dg_hdr_len;
 318        __u8  padding[16];
 319} __attribute__ ((packed));
 320
 321struct qeth_hdr_tso {
 322        struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 323        struct qeth_hdr_ext_tso ext;
 324} __attribute__ ((packed));
 325
 326
 327/* flags for qeth_hdr.flags */
 328#define QETH_HDR_PASSTHRU 0x10
 329#define QETH_HDR_IPV6     0x80
 330#define QETH_HDR_CAST_MASK 0x07
 331enum qeth_cast_flags {
 332        QETH_CAST_UNICAST   = 0x06,
 333        QETH_CAST_MULTICAST = 0x04,
 334        QETH_CAST_BROADCAST = 0x05,
 335        QETH_CAST_ANYCAST   = 0x07,
 336        QETH_CAST_NOCAST    = 0x00,
 337};
 338
 339enum qeth_layer2_frame_flags {
 340        QETH_LAYER2_FLAG_MULTICAST = 0x01,
 341        QETH_LAYER2_FLAG_BROADCAST = 0x02,
 342        QETH_LAYER2_FLAG_UNICAST   = 0x04,
 343        QETH_LAYER2_FLAG_VLAN      = 0x10,
 344};
 345
 346enum qeth_header_ids {
 347        QETH_HEADER_TYPE_LAYER3 = 0x01,
 348        QETH_HEADER_TYPE_LAYER2 = 0x02,
 349        QETH_HEADER_TYPE_TSO    = 0x03,
 350        QETH_HEADER_TYPE_OSN    = 0x04,
 351};
 352/* flags for qeth_hdr.ext_flags */
 353#define QETH_HDR_EXT_VLAN_FRAME       0x01
 354#define QETH_HDR_EXT_TOKEN_ID         0x02
 355#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 356#define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 357#define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 358#define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 359#define QETH_HDR_EXT_UDP_TSO          0x40 /*bit off for TCP*/
 360
 361static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
 362{
 363        return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
 364}
 365
 366enum qeth_qdio_buffer_states {
 367        /*
 368         * inbound: read out by driver; owned by hardware in order to be filled
 369         * outbound: owned by driver in order to be filled
 370         */
 371        QETH_QDIO_BUF_EMPTY,
 372        /*
 373         * inbound: filled by hardware; owned by driver in order to be read out
 374         * outbound: filled by driver; owned by hardware in order to be sent
 375         */
 376        QETH_QDIO_BUF_PRIMED,
 377};
 378
 379enum qeth_qdio_info_states {
 380        QETH_QDIO_UNINITIALIZED,
 381        QETH_QDIO_ALLOCATED,
 382        QETH_QDIO_ESTABLISHED,
 383        QETH_QDIO_CLEANING
 384};
 385
 386struct qeth_buffer_pool_entry {
 387        struct list_head list;
 388        struct list_head init_list;
 389        void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 390};
 391
 392struct qeth_qdio_buffer_pool {
 393        struct list_head entry_list;
 394        int buf_count;
 395};
 396
 397struct qeth_qdio_buffer {
 398        struct qdio_buffer *buffer;
 399        /* the buffer pool entry currently associated to this buffer */
 400        struct qeth_buffer_pool_entry *pool_entry;
 401};
 402
 403struct qeth_qdio_q {
 404        struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 405        struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 406        int next_buf_to_init;
 407} __attribute__ ((aligned(256)));
 408
 409/* possible types of qeth large_send support */
 410enum qeth_large_send_types {
 411        QETH_LARGE_SEND_NO,
 412        QETH_LARGE_SEND_EDDP,
 413        QETH_LARGE_SEND_TSO,
 414};
 415
 416struct qeth_qdio_out_buffer {
 417        struct qdio_buffer *buffer;
 418        atomic_t state;
 419        int next_element_to_fill;
 420        struct sk_buff_head skb_list;
 421        struct list_head ctx_list;
 422        int is_header[16];
 423};
 424
 425struct qeth_card;
 426
 427enum qeth_out_q_states {
 428       QETH_OUT_Q_UNLOCKED,
 429       QETH_OUT_Q_LOCKED,
 430       QETH_OUT_Q_LOCKED_FLUSH,
 431};
 432
 433struct qeth_qdio_out_q {
 434        struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 435        struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 436        int queue_no;
 437        struct qeth_card *card;
 438        atomic_t state;
 439        int do_pack;
 440        /*
 441         * index of buffer to be filled by driver; state EMPTY or PACKING
 442         */
 443        int next_buf_to_fill;
 444        /*
 445         * number of buffers that are currently filled (PRIMED)
 446         * -> these buffers are hardware-owned
 447         */
 448        atomic_t used_buffers;
 449        /* indicates whether PCI flag must be set (or if one is outstanding) */
 450        atomic_t set_pci_flags_count;
 451} __attribute__ ((aligned(256)));
 452
 453struct qeth_qdio_info {
 454        atomic_t state;
 455        /* input */
 456        struct qeth_qdio_q *in_q;
 457        struct qeth_qdio_buffer_pool in_buf_pool;
 458        struct qeth_qdio_buffer_pool init_pool;
 459        int in_buf_size;
 460
 461        /* output */
 462        int no_out_queues;
 463        struct qeth_qdio_out_q **out_qs;
 464
 465        /* priority queueing */
 466        int do_prio_queueing;
 467        int default_out_queue;
 468};
 469
 470enum qeth_send_errors {
 471        QETH_SEND_ERROR_NONE,
 472        QETH_SEND_ERROR_LINK_FAILURE,
 473        QETH_SEND_ERROR_RETRY,
 474        QETH_SEND_ERROR_KICK_IT,
 475};
 476
 477#define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 478#define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 479/* tr mc mac is longer, but that will be enough to detect mc frames */
 480#define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 481#define QETH_TR_MAC_C        0x0300 /* canonical */
 482
 483#define DEFAULT_ADD_HHLEN 0
 484#define MAX_ADD_HHLEN 1024
 485
 486/**
 487 * buffer stuff for read channel
 488 */
 489#define QETH_CMD_BUFFER_NO      8
 490
 491/**
 492 *  channel state machine
 493 */
 494enum qeth_channel_states {
 495        CH_STATE_UP,
 496        CH_STATE_DOWN,
 497        CH_STATE_ACTIVATING,
 498        CH_STATE_HALTED,
 499        CH_STATE_STOPPED,
 500        CH_STATE_RCD,
 501        CH_STATE_RCD_DONE,
 502};
 503/**
 504 * card state machine
 505 */
 506enum qeth_card_states {
 507        CARD_STATE_DOWN,
 508        CARD_STATE_HARDSETUP,
 509        CARD_STATE_SOFTSETUP,
 510        CARD_STATE_UP,
 511        CARD_STATE_RECOVER,
 512};
 513
 514/**
 515 * Protocol versions
 516 */
 517enum qeth_prot_versions {
 518        QETH_PROT_IPV4 = 0x0004,
 519        QETH_PROT_IPV6 = 0x0006,
 520};
 521
 522enum qeth_ip_types {
 523        QETH_IP_TYPE_NORMAL,
 524        QETH_IP_TYPE_VIPA,
 525        QETH_IP_TYPE_RXIP,
 526        QETH_IP_TYPE_DEL_ALL_MC,
 527};
 528
 529enum qeth_cmd_buffer_state {
 530        BUF_STATE_FREE,
 531        BUF_STATE_LOCKED,
 532        BUF_STATE_PROCESSED,
 533};
 534
 535struct qeth_ipato {
 536        int enabled;
 537        int invert4;
 538        int invert6;
 539        struct list_head entries;
 540};
 541
 542struct qeth_channel;
 543
 544struct qeth_cmd_buffer {
 545        enum qeth_cmd_buffer_state state;
 546        struct qeth_channel *channel;
 547        unsigned char *data;
 548        int rc;
 549        void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 550};
 551
 552/**
 553 * definition of a qeth channel, used for read and write
 554 */
 555struct qeth_channel {
 556        enum qeth_channel_states state;
 557        struct ccw1 ccw;
 558        spinlock_t iob_lock;
 559        wait_queue_head_t wait_q;
 560        struct tasklet_struct irq_tasklet;
 561        struct ccw_device *ccwdev;
 562/*command buffer for control data*/
 563        struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 564        atomic_t irq_pending;
 565        int io_buf_no;
 566        int buf_no;
 567};
 568
 569/**
 570 *  OSA card related definitions
 571 */
 572struct qeth_token {
 573        __u32 issuer_rm_w;
 574        __u32 issuer_rm_r;
 575        __u32 cm_filter_w;
 576        __u32 cm_filter_r;
 577        __u32 cm_connection_w;
 578        __u32 cm_connection_r;
 579        __u32 ulp_filter_w;
 580        __u32 ulp_filter_r;
 581        __u32 ulp_connection_w;
 582        __u32 ulp_connection_r;
 583};
 584
 585struct qeth_seqno {
 586        __u32 trans_hdr;
 587        __u32 pdu_hdr;
 588        __u32 pdu_hdr_ack;
 589        __u16 ipa;
 590        __u32 pkt_seqno;
 591};
 592
 593struct qeth_reply {
 594        struct list_head list;
 595        wait_queue_head_t wait_q;
 596        int (*callback)(struct qeth_card *, struct qeth_reply *,
 597                unsigned long);
 598        u32 seqno;
 599        unsigned long offset;
 600        atomic_t received;
 601        int rc;
 602        void *param;
 603        struct qeth_card *card;
 604        atomic_t refcnt;
 605};
 606
 607
 608struct qeth_card_blkt {
 609        int time_total;
 610        int inter_packet;
 611        int inter_packet_jumbo;
 612};
 613
 614#define QETH_BROADCAST_WITH_ECHO    0x01
 615#define QETH_BROADCAST_WITHOUT_ECHO 0x02
 616#define QETH_LAYER2_MAC_READ        0x01
 617#define QETH_LAYER2_MAC_REGISTERED  0x02
 618struct qeth_card_info {
 619        unsigned short unit_addr2;
 620        unsigned short cula;
 621        unsigned short chpid;
 622        __u16 func_level;
 623        char mcl_level[QETH_MCL_LENGTH + 1];
 624        int guestlan;
 625        int mac_bits;
 626        int portname_required;
 627        int portno;
 628        char portname[9];
 629        enum qeth_card_types type;
 630        enum qeth_link_types link_type;
 631        int is_multicast_different;
 632        int initial_mtu;
 633        int max_mtu;
 634        int broadcast_capable;
 635        int unique_id;
 636        struct qeth_card_blkt blkt;
 637        __u32 csum_mask;
 638        enum qeth_ipa_promisc_modes promisc_mode;
 639};
 640
 641struct qeth_card_options {
 642        struct qeth_routing_info route4;
 643        struct qeth_ipa_info ipa4;
 644        struct qeth_ipa_info adp; /*Adapter parameters*/
 645        struct qeth_routing_info route6;
 646        struct qeth_ipa_info ipa6;
 647        enum qeth_checksum_types checksum_type;
 648        int broadcast_mode;
 649        int macaddr_mode;
 650        int fake_broadcast;
 651        int add_hhlen;
 652        int fake_ll;
 653        int layer2;
 654        enum qeth_large_send_types large_send;
 655        int performance_stats;
 656        int rx_sg_cb;
 657};
 658
 659/*
 660 * thread bits for qeth_card thread masks
 661 */
 662enum qeth_threads {
 663        QETH_RECOVER_THREAD = 1,
 664};
 665
 666struct qeth_osn_info {
 667        int (*assist_cb)(struct net_device *dev, void *data);
 668        int (*data_cb)(struct sk_buff *skb);
 669};
 670
 671enum qeth_discipline_id {
 672        QETH_DISCIPLINE_LAYER3 = 0,
 673        QETH_DISCIPLINE_LAYER2 = 1,
 674};
 675
 676struct qeth_discipline {
 677        qdio_handler_t *input_handler;
 678        qdio_handler_t *output_handler;
 679        int (*recover)(void *ptr);
 680        struct ccwgroup_driver *ccwgdriver;
 681};
 682
 683struct qeth_vlan_vid {
 684        struct list_head list;
 685        unsigned short vid;
 686};
 687
 688struct qeth_mc_mac {
 689        struct list_head list;
 690        __u8 mc_addr[MAX_ADDR_LEN];
 691        unsigned char mc_addrlen;
 692        int is_vmac;
 693};
 694
 695struct qeth_card {
 696        struct list_head list;
 697        enum qeth_card_states state;
 698        int lan_online;
 699        spinlock_t lock;
 700        struct ccwgroup_device *gdev;
 701        struct qeth_channel read;
 702        struct qeth_channel write;
 703        struct qeth_channel data;
 704
 705        struct net_device *dev;
 706        struct net_device_stats stats;
 707
 708        struct qeth_card_info info;
 709        struct qeth_token token;
 710        struct qeth_seqno seqno;
 711        struct qeth_card_options options;
 712
 713        wait_queue_head_t wait_q;
 714        spinlock_t vlanlock;
 715        spinlock_t mclock;
 716        struct vlan_group *vlangrp;
 717        struct list_head vid_list;
 718        struct list_head mc_list;
 719        struct work_struct kernel_thread_starter;
 720        spinlock_t thread_mask_lock;
 721        unsigned long thread_start_mask;
 722        unsigned long thread_allowed_mask;
 723        unsigned long thread_running_mask;
 724        spinlock_t ip_lock;
 725        struct list_head ip_list;
 726        struct list_head *ip_tbd_list;
 727        struct qeth_ipato ipato;
 728        struct list_head cmd_waiter_list;
 729        /* QDIO buffer handling */
 730        struct qeth_qdio_info qdio;
 731        struct qeth_perf_stats perf_stats;
 732        int use_hard_stop;
 733        struct qeth_osn_info osn_info;
 734        struct qeth_discipline discipline;
 735        atomic_t force_alloc_skb;
 736};
 737
 738struct qeth_card_list_struct {
 739        struct list_head list;
 740        rwlock_t rwlock;
 741};
 742
 743/*some helper functions*/
 744#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 745
 746static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 747{
 748        struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
 749                dev_get_drvdata(&cdev->dev))->dev);
 750        return card;
 751}
 752
 753static inline int qeth_get_micros(void)
 754{
 755        return (int) (get_clock() >> 12);
 756}
 757
 758static inline int qeth_get_ip_version(struct sk_buff *skb)
 759{
 760        switch (skb->protocol) {
 761        case ETH_P_IPV6:
 762                return 6;
 763        case ETH_P_IP:
 764                return 4;
 765        default:
 766                return 0;
 767        }
 768}
 769
 770static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 771                struct qeth_buffer_pool_entry *entry)
 772{
 773        list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 774}
 775
 776struct qeth_eddp_context;
 777extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
 778extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
 779const char *qeth_get_cardname_short(struct qeth_card *);
 780int qeth_realloc_buffer_pool(struct qeth_card *, int);
 781int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 782void qeth_core_free_discipline(struct qeth_card *);
 783int qeth_core_create_device_attributes(struct device *);
 784void qeth_core_remove_device_attributes(struct device *);
 785int qeth_core_create_osn_attributes(struct device *);
 786void qeth_core_remove_osn_attributes(struct device *);
 787
 788/* exports for qeth discipline device drivers */
 789extern struct qeth_card_list_struct qeth_core_card_list;
 790extern struct kmem_cache *qeth_core_header_cache;
 791extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 792
 793void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 794int qeth_threads_running(struct qeth_card *, unsigned long);
 795int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 796int qeth_do_run_thread(struct qeth_card *, unsigned long);
 797void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 798void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 799int qeth_core_hardsetup_card(struct qeth_card *);
 800void qeth_print_status_message(struct qeth_card *);
 801int qeth_init_qdio_queues(struct qeth_card *);
 802int qeth_send_startlan(struct qeth_card *);
 803int qeth_send_stoplan(struct qeth_card *);
 804int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 805                  int (*reply_cb)
 806                  (struct qeth_card *, struct qeth_reply *, unsigned long),
 807                  void *);
 808struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 809                        enum qeth_ipa_cmds, enum qeth_prot_versions);
 810int qeth_query_setadapterparms(struct qeth_card *);
 811int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *);
 812void qeth_queue_input_buffer(struct qeth_card *, int);
 813struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 814                struct qdio_buffer *, struct qdio_buffer_element **, int *,
 815                struct qeth_hdr **);
 816void qeth_schedule_recovery(struct qeth_card *);
 817void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 818                        int, int, int, unsigned long);
 819void qeth_clear_ipacmd_list(struct qeth_card *);
 820int qeth_qdio_clear_card(struct qeth_card *, int);
 821void qeth_clear_working_pool_list(struct qeth_card *);
 822void qeth_clear_cmd_buffers(struct qeth_channel *);
 823void qeth_clear_qdio_buffers(struct qeth_card *);
 824void qeth_setadp_promisc_mode(struct qeth_card *);
 825struct net_device_stats *qeth_get_stats(struct net_device *);
 826int qeth_change_mtu(struct net_device *, int);
 827int qeth_setadpparms_change_macaddr(struct qeth_card *);
 828void qeth_tx_timeout(struct net_device *);
 829void qeth_prepare_control_data(struct qeth_card *, int,
 830                                struct qeth_cmd_buffer *);
 831void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 832void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 833struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 834int qeth_mdio_read(struct net_device *, int, int);
 835int qeth_snmp_command(struct qeth_card *, char __user *);
 836int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);
 837struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
 838int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
 839                                        unsigned long);
 840int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 841        int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 842        void *reply_param);
 843int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
 844int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 845int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
 846int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 847                        struct sk_buff *, struct qeth_hdr *, int,
 848                        struct qeth_eddp_context *, int, int);
 849int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 850                    struct sk_buff *, struct qeth_hdr *,
 851                    int, struct qeth_eddp_context *);
 852int qeth_core_get_stats_count(struct net_device *);
 853void qeth_core_get_ethtool_stats(struct net_device *,
 854                                struct ethtool_stats *, u64 *);
 855void qeth_core_get_strings(struct net_device *, u32, u8 *);
 856void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 857void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...);
 858int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 859
 860/* exports for OSN */
 861int qeth_osn_assist(struct net_device *, void *, int);
 862int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 863                int (*assist_cb)(struct net_device *, void *),
 864                int (*data_cb)(struct sk_buff *));
 865void qeth_osn_deregister(struct net_device *);
 866
 867#endif /* __QETH_CORE_H__ */
 868
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