drivers/s390/net/qeth_core.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *    Copyright IBM Corp. 2007
   4  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   5  *               Frank Pavlic <fpavlic@de.ibm.com>,
   6  *               Thomas Spatzier <tspat@de.ibm.com>,
   7  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   8  */
   9
  10 #ifndef __QETH_CORE_H__
  11 #define __QETH_CORE_H__
  12
  13 #include <linux/if.h>
  14 #include <linux/if_arp.h>
  15 #include <linux/etherdevice.h>
  16 #include <linux/if_vlan.h>
  17 #include <linux/ctype.h>
  18 #include <linux/in6.h>
  19 #include <linux/bitops.h>
  20 #include <linux/seq_file.h>
  21 #include <linux/ethtool.h>
  22 #include <linux/hashtable.h>
  23 #include <linux/ip.h>
  24
  25 #include <net/ipv6.h>
  26 #include <net/if_inet6.h>
  27 #include <net/addrconf.h>
  28
  29 #include <asm/debug.h>
  30 #include <asm/qdio.h>
  31 #include <asm/ccwdev.h>
  32 #include <asm/ccwgroup.h>
  33 #include <asm/sysinfo.h>
  34
  35 #include "qeth_core_mpc.h"
  36
  37 /**
  38  * Debug Facility stuff
  39  */
  40 enum qeth_dbf_names {
  41         QETH_DBF_SETUP,
  42         QETH_DBF_MSG,
  43         QETH_DBF_CTRL,
  44         QETH_DBF_INFOS  /* must be last element */
  45 };
  46
  47 struct qeth_dbf_info {
  48         char name[DEBUG_MAX_NAME_LEN];
  49         int pages;
  50         int areas;
  51         int len;
  52         int level;
  53         struct debug_view *view;
  54         debug_info_t *id;
  55 };
  56
  57 #define QETH_DBF_CTRL_LEN 256
  58
  59 #define QETH_DBF_TEXT(name, level, text) \
  60         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  61
  62 #define QETH_DBF_HEX(name, level, addr, len) \
  63         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  64
  65 #define QETH_DBF_MESSAGE(level, text...) \
  66         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  67
  68 #define QETH_DBF_TEXT_(name, level, text...) \
  69         qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
  70
  71 #define QETH_CARD_TEXT(card, level, text) \
  72         debug_text_event(card->debug, level, text)
  73
  74 #define QETH_CARD_HEX(card, level, addr, len) \
  75         debug_event(card->debug, level, (void *)(addr), len)
  76
  77 #define QETH_CARD_MESSAGE(card, text...) \
  78         debug_sprintf_event(card->debug, level, text)
  79
  80 #define QETH_CARD_TEXT_(card, level, text...) \
  81         qeth_dbf_longtext(card->debug, level, text)
  82
  83 #define SENSE_COMMAND_REJECT_BYTE 0
  84 #define SENSE_COMMAND_REJECT_FLAG 0x80
  85 #define SENSE_RESETTING_EVENT_BYTE 1
  86 #define SENSE_RESETTING_EVENT_FLAG 0x80
  87
  88 /*
  89  * Common IO related definitions
  90  */
  91 #define CARD_RDEV(card) card->read.ccwdev
  92 #define CARD_WDEV(card) card->write.ccwdev
  93 #define CARD_DDEV(card) card->data.ccwdev
  94 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  95 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  96 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  97 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  98 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
  99
 100 /**
 101  * card stuff
 102  */
 103 struct qeth_perf_stats {
 104         unsigned int bufs_rec;
 105         unsigned int bufs_sent;
 106
 107         unsigned int skbs_sent_pack;
 108         unsigned int bufs_sent_pack;
 109
 110         unsigned int sc_dp_p;
 111         unsigned int sc_p_dp;
 112         /* qdio_cq_handler: number of times called, time spent in */
 113         __u64 cq_start_time;
 114         unsigned int cq_cnt;
 115         unsigned int cq_time;
 116         /* qdio_input_handler: number of times called, time spent in */
 117         __u64 inbound_start_time;
 118         unsigned int inbound_cnt;
 119         unsigned int inbound_time;
 120         /* qeth_send_packet: number of times called, time spent in */
 121         __u64 outbound_start_time;
 122         unsigned int outbound_cnt;
 123         unsigned int outbound_time;
 124         /* qdio_output_handler: number of times called, time spent in */
 125         __u64 outbound_handler_start_time;
 126         unsigned int outbound_handler_cnt;
 127         unsigned int outbound_handler_time;
 128         /* number of calls to and time spent in do_QDIO for inbound queue */
 129         __u64 inbound_do_qdio_start_time;
 130         unsigned int inbound_do_qdio_cnt;
 131         unsigned int inbound_do_qdio_time;
 132         /* number of calls to and time spent in do_QDIO for outbound queues */
 133         __u64 outbound_do_qdio_start_time;
 134         unsigned int outbound_do_qdio_cnt;
 135         unsigned int outbound_do_qdio_time;
 136         unsigned int large_send_bytes;
 137         unsigned int large_send_cnt;
 138         unsigned int sg_skbs_sent;
 139         unsigned int sg_frags_sent;
 140         /* initial values when measuring starts */
 141         unsigned long initial_rx_packets;
 142         unsigned long initial_tx_packets;
 143         /* inbound scatter gather data */
 144         unsigned int sg_skbs_rx;
 145         unsigned int sg_frags_rx;
 146         unsigned int sg_alloc_page_rx;
 147         unsigned int tx_csum;
 148         unsigned int tx_lin;
 149         unsigned int tx_linfail;
 150 };
 151
 152 /* Routing stuff */
 153 struct qeth_routing_info {
 154         enum qeth_routing_types type;
 155 };
 156
 157 /* IPA stuff */
 158 struct qeth_ipa_info {
 159         __u32 supported_funcs;
 160         __u32 enabled_funcs;
 161 };
 162
 163 /* SETBRIDGEPORT stuff */
 164 enum qeth_sbp_roles {
 165         QETH_SBP_ROLE_NONE      = 0,
 166         QETH_SBP_ROLE_PRIMARY   = 1,
 167         QETH_SBP_ROLE_SECONDARY = 2,
 168 };
 169
 170 enum qeth_sbp_states {
 171         QETH_SBP_STATE_INACTIVE = 0,
 172         QETH_SBP_STATE_STANDBY  = 1,
 173         QETH_SBP_STATE_ACTIVE   = 2,
 174 };
 175
 176 #define QETH_SBP_HOST_NOTIFICATION 1
 177
 178 struct qeth_sbp_info {
 179         __u32 supported_funcs;
 180         enum qeth_sbp_roles role;
 181         __u32 hostnotification:1;
 182         __u32 reflect_promisc:1;
 183         __u32 reflect_promisc_primary:1;
 184 };
 185
 186 struct qeth_vnicc_info {
 187         /* supported/currently configured VNICCs; updated in IPA exchanges */
 188         u32 sup_chars;
 189         u32 cur_chars;
 190         /* supported commands: bitmasks which VNICCs support respective cmd */
 191         u32 set_char_sup;
 192         u32 getset_timeout_sup;
 193         /* timeout value for the learning characteristic */
 194         u32 learning_timeout;
 195         /* characteristics wanted/configured by user */
 196         u32 wanted_chars;
 197         /* has user explicitly enabled rx_bcast while online? */
 198         bool rx_bcast_enabled;
 199 };
 200
 201 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 202                 enum qeth_ipa_funcs func)
 203 {
 204         return (ipa->supported_funcs & func);
 205 }
 206
 207 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 208                 enum qeth_ipa_funcs func)
 209 {
 210         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 211 }
 212
 213 #define qeth_adp_supported(c, f) \
 214         qeth_is_ipa_supported(&c->options.adp, f)
 215 #define qeth_adp_enabled(c, f) \
 216         qeth_is_ipa_enabled(&c->options.adp, f)
 217 #define qeth_is_supported(c, f) \
 218         qeth_is_ipa_supported(&c->options.ipa4, f)
 219 #define qeth_is_enabled(c, f) \
 220         qeth_is_ipa_enabled(&c->options.ipa4, f)
 221 #define qeth_is_supported6(c, f) \
 222         qeth_is_ipa_supported(&c->options.ipa6, f)
 223 #define qeth_is_enabled6(c, f) \
 224         qeth_is_ipa_enabled(&c->options.ipa6, f)
 225 #define qeth_is_ipafunc_supported(c, prot, f) \
 226          ((prot == QETH_PROT_IPV6) ? \
 227                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 228 #define qeth_is_ipafunc_enabled(c, prot, f) \
 229          ((prot == QETH_PROT_IPV6) ? \
 230                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 231
 232 #define QETH_IDX_FUNC_LEVEL_OSD          0x0101
 233 #define QETH_IDX_FUNC_LEVEL_IQD          0x4108
 234
 235 #define QETH_REAL_CARD          1
 236 #define QETH_VLAN_CARD          2
 237 #define QETH_BUFSIZE            4096
 238
 239 /**
 240  * some more defs
 241  */
 242 #define QETH_TX_TIMEOUT         100 * HZ
 243 #define QETH_RCD_TIMEOUT        60 * HZ
 244 #define QETH_RECLAIM_WORK_TIME  HZ
 245 #define QETH_MAX_PORTNO         15
 246
 247 /*IPv6 address autoconfiguration stuff*/
 248 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 249 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 250
 251 /*****************************************************************************/
 252 /* QDIO queue and buffer handling                                            */
 253 /*****************************************************************************/
 254 #define QETH_MAX_QUEUES 4
 255 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 256 #define QETH_IN_BUF_COUNT_DEFAULT 64
 257 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
 258 #define QETH_IN_BUF_COUNT_MIN 8
 259 #define QETH_IN_BUF_COUNT_MAX 128
 260 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 261 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 262                  ((card)->qdio.in_buf_pool.buf_count / 2)
 263
 264 /* buffers we have to be behind before we get a PCI */
 265 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 266 /*enqueued free buffers left before we get a PCI*/
 267 #define QETH_PCI_THRESHOLD_B(card) 0
 268 /*not used unless the microcode gets patched*/
 269 #define QETH_PCI_TIMER_VALUE(card) 3
 270
 271 /* priority queing */
 272 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 273 #define QETH_DEFAULT_QUEUE    2
 274 #define QETH_NO_PRIO_QUEUEING 0
 275 #define QETH_PRIO_Q_ING_PREC  1
 276 #define QETH_PRIO_Q_ING_TOS   2
 277 #define QETH_PRIO_Q_ING_SKB   3
 278 #define QETH_PRIO_Q_ING_VLAN  4
 279
 280 /* Packing */
 281 #define QETH_LOW_WATERMARK_PACK  2
 282 #define QETH_HIGH_WATERMARK_PACK 5
 283 #define QETH_WATERMARK_PACK_FUZZ 1
 284
 285 /* large receive scatter gather copy break */
 286 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 287 #define QETH_RX_PULL_LEN 256
 288
 289 struct qeth_hdr_layer3 {
 290         __u8  id;
 291         __u8  flags;
 292         __u16 inbound_checksum; /*TSO:__u16 seqno */
 293         __u32 token;            /*TSO: __u32 reserved */
 294         __u16 length;
 295         __u8  vlan_prio;
 296         __u8  ext_flags;
 297         __u16 vlan_id;
 298         __u16 frame_offset;
 299         __u8  dest_addr[16];
 300 } __attribute__ ((packed));
 301
 302 struct qeth_hdr_layer2 {
 303         __u8 id;
 304         __u8 flags[3];
 305         __u8 port_no;
 306         __u8 hdr_length;
 307         __u16 pkt_length;
 308         __u16 seq_no;
 309         __u16 vlan_id;
 310         __u32 reserved;
 311         __u8 reserved2[16];
 312 } __attribute__ ((packed));
 313
 314 struct qeth_hdr_osn {
 315         __u8 id;
 316         __u8 reserved;
 317         __u16 seq_no;
 318         __u16 reserved2;
 319         __u16 control_flags;
 320         __u16 pdu_length;
 321         __u8 reserved3[18];
 322         __u32 ccid;
 323 } __attribute__ ((packed));
 324
 325 struct qeth_hdr {
 326         union {
 327                 struct qeth_hdr_layer2 l2;
 328                 struct qeth_hdr_layer3 l3;
 329                 struct qeth_hdr_osn    osn;
 330         } hdr;
 331 } __attribute__ ((packed));
 332
 333 /*TCP Segmentation Offload header*/
 334 struct qeth_hdr_ext_tso {
 335         __u16 hdr_tot_len;
 336         __u8  imb_hdr_no;
 337         __u8  reserved;
 338         __u8  hdr_type;
 339         __u8  hdr_version;
 340         __u16 hdr_len;
 341         __u32 payload_len;
 342         __u16 mss;
 343         __u16 dg_hdr_len;
 344         __u8  padding[16];
 345 } __attribute__ ((packed));
 346
 347 struct qeth_hdr_tso {
 348         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 349         struct qeth_hdr_ext_tso ext;
 350 } __attribute__ ((packed));
 351
 352
 353 /* flags for qeth_hdr.flags */
 354 #define QETH_HDR_PASSTHRU 0x10
 355 #define QETH_HDR_IPV6     0x80
 356 #define QETH_HDR_CAST_MASK 0x07
 357 enum qeth_cast_flags {
 358         QETH_CAST_UNICAST   = 0x06,
 359         QETH_CAST_MULTICAST = 0x04,
 360         QETH_CAST_BROADCAST = 0x05,
 361         QETH_CAST_ANYCAST   = 0x07,
 362         QETH_CAST_NOCAST    = 0x00,
 363 };
 364
 365 enum qeth_layer2_frame_flags {
 366         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 367         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 368         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 369         QETH_LAYER2_FLAG_VLAN      = 0x10,
 370 };
 371
 372 enum qeth_header_ids {
 373         QETH_HEADER_TYPE_LAYER3 = 0x01,
 374         QETH_HEADER_TYPE_LAYER2 = 0x02,
 375         QETH_HEADER_TYPE_TSO    = 0x03,
 376         QETH_HEADER_TYPE_OSN    = 0x04,
 377 };
 378 /* flags for qeth_hdr.ext_flags */
 379 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 380 #define QETH_HDR_EXT_TOKEN_ID         0x02
 381 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 382 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 383 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 384 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 385 #define QETH_HDR_EXT_UDP              0x40 /*bit off for TCP*/
 386
 387 enum qeth_qdio_buffer_states {
 388         /*
 389          * inbound: read out by driver; owned by hardware in order to be filled
 390          * outbound: owned by driver in order to be filled
 391          */
 392         QETH_QDIO_BUF_EMPTY,
 393         /*
 394          * inbound: filled by hardware; owned by driver in order to be read out
 395          * outbound: filled by driver; owned by hardware in order to be sent
 396          */
 397         QETH_QDIO_BUF_PRIMED,
 398         /*
 399          * inbound: not applicable
 400          * outbound: identified to be pending in TPQ
 401          */
 402         QETH_QDIO_BUF_PENDING,
 403         /*
 404          * inbound: not applicable
 405          * outbound: found in completion queue
 406          */
 407         QETH_QDIO_BUF_IN_CQ,
 408         /*
 409          * inbound: not applicable
 410          * outbound: handled via transfer pending / completion queue
 411          */
 412         QETH_QDIO_BUF_HANDLED_DELAYED,
 413 };
 414
 415 enum qeth_qdio_info_states {
 416         QETH_QDIO_UNINITIALIZED,
 417         QETH_QDIO_ALLOCATED,
 418         QETH_QDIO_ESTABLISHED,
 419         QETH_QDIO_CLEANING
 420 };
 421
 422 struct qeth_buffer_pool_entry {
 423         struct list_head list;
 424         struct list_head init_list;
 425         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 426 };
 427
 428 struct qeth_qdio_buffer_pool {
 429         struct list_head entry_list;
 430         int buf_count;
 431 };
 432
 433 struct qeth_qdio_buffer {
 434         struct qdio_buffer *buffer;
 435         /* the buffer pool entry currently associated to this buffer */
 436         struct qeth_buffer_pool_entry *pool_entry;
 437         struct sk_buff *rx_skb;
 438 };
 439
 440 struct qeth_qdio_q {
 441         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 442         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 443         int next_buf_to_init;
 444 };
 445
 446 struct qeth_qdio_out_buffer {
 447         struct qdio_buffer *buffer;
 448         atomic_t state;
 449         int next_element_to_fill;
 450         struct sk_buff_head skb_list;
 451         int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
 452
 453         struct qaob *aob;
 454         struct qeth_qdio_out_q *q;
 455         struct qeth_qdio_out_buffer *next_pending;
 456 };
 457
 458 struct qeth_card;
 459
 460 enum qeth_out_q_states {
 461        QETH_OUT_Q_UNLOCKED,
 462        QETH_OUT_Q_LOCKED,
 463        QETH_OUT_Q_LOCKED_FLUSH,
 464 };
 465
 466 struct qeth_qdio_out_q {
 467         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 468         struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
 469         struct qdio_outbuf_state *bufstates; /* convenience pointer */
 470         int queue_no;
 471         struct qeth_card *card;
 472         atomic_t state;
 473         int do_pack;
 474         /*
 475          * index of buffer to be filled by driver; state EMPTY or PACKING
 476          */
 477         int next_buf_to_fill;
 478         /*
 479          * number of buffers that are currently filled (PRIMED)
 480          * -> these buffers are hardware-owned
 481          */
 482         atomic_t used_buffers;
 483         /* indicates whether PCI flag must be set (or if one is outstanding) */
 484         atomic_t set_pci_flags_count;
 485 };
 486
 487 struct qeth_qdio_info {
 488         atomic_t state;
 489         /* input */
 490         int no_in_queues;
 491         struct qeth_qdio_q *in_q;
 492         struct qeth_qdio_q *c_q;
 493         struct qeth_qdio_buffer_pool in_buf_pool;
 494         struct qeth_qdio_buffer_pool init_pool;
 495         int in_buf_size;
 496
 497         /* output */
 498         int no_out_queues;
 499         struct qeth_qdio_out_q **out_qs;
 500         struct qdio_outbuf_state *out_bufstates;
 501
 502         /* priority queueing */
 503         int do_prio_queueing;
 504         int default_out_queue;
 505 };
 506
 507 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 508 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 509 /* tr mc mac is longer, but that will be enough to detect mc frames */
 510 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 511 #define QETH_TR_MAC_C        0x0300 /* canonical */
 512
 513 /**
 514  * buffer stuff for read channel
 515  */
 516 #define QETH_CMD_BUFFER_NO      8
 517
 518 /**
 519  *  channel state machine
 520  */
 521 enum qeth_channel_states {
 522         CH_STATE_UP,
 523         CH_STATE_DOWN,
 524         CH_STATE_ACTIVATING,
 525         CH_STATE_HALTED,
 526         CH_STATE_STOPPED,
 527         CH_STATE_RCD,
 528         CH_STATE_RCD_DONE,
 529 };
 530 /**
 531  * card state machine
 532  */
 533 enum qeth_card_states {
 534         CARD_STATE_DOWN,
 535         CARD_STATE_HARDSETUP,
 536         CARD_STATE_SOFTSETUP,
 537         CARD_STATE_UP,
 538         CARD_STATE_RECOVER,
 539 };
 540
 541 /**
 542  * Protocol versions
 543  */
 544 enum qeth_prot_versions {
 545         QETH_PROT_IPV4 = 0x0004,
 546         QETH_PROT_IPV6 = 0x0006,
 547 };
 548
 549 enum qeth_ip_types {
 550         QETH_IP_TYPE_NORMAL,
 551         QETH_IP_TYPE_VIPA,
 552         QETH_IP_TYPE_RXIP,
 553 };
 554
 555 enum qeth_cmd_buffer_state {
 556         BUF_STATE_FREE,
 557         BUF_STATE_LOCKED,
 558         BUF_STATE_PROCESSED,
 559 };
 560
 561 enum qeth_cq {
 562         QETH_CQ_DISABLED = 0,
 563         QETH_CQ_ENABLED = 1,
 564         QETH_CQ_NOTAVAILABLE = 2,
 565 };
 566
 567 struct qeth_ipato {
 568         int enabled;
 569         int invert4;
 570         int invert6;
 571         struct list_head entries;
 572 };
 573
 574 struct qeth_channel;
 575
 576 struct qeth_cmd_buffer {
 577         enum qeth_cmd_buffer_state state;
 578         struct qeth_channel *channel;
 579         unsigned char *data;
 580         int rc;
 581         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 582 };
 583
 584 /**
 585  * definition of a qeth channel, used for read and write
 586  */
 587 struct qeth_channel {
 588         enum qeth_channel_states state;
 589         struct ccw1 ccw;
 590         spinlock_t iob_lock;
 591         wait_queue_head_t wait_q;
 592         struct ccw_device *ccwdev;
 593 /*command buffer for control data*/
 594         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 595         atomic_t irq_pending;
 596         int io_buf_no;
 597         int buf_no;
 598 };
 599
 600 /**
 601  *  OSA card related definitions
 602  */
 603 struct qeth_token {
 604         __u32 issuer_rm_w;
 605         __u32 issuer_rm_r;
 606         __u32 cm_filter_w;
 607         __u32 cm_filter_r;
 608         __u32 cm_connection_w;
 609         __u32 cm_connection_r;
 610         __u32 ulp_filter_w;
 611         __u32 ulp_filter_r;
 612         __u32 ulp_connection_w;
 613         __u32 ulp_connection_r;
 614 };
 615
 616 struct qeth_seqno {
 617         __u32 trans_hdr;
 618         __u32 pdu_hdr;
 619         __u32 pdu_hdr_ack;
 620         __u16 ipa;
 621         __u32 pkt_seqno;
 622 };
 623
 624 struct qeth_reply {
 625         struct list_head list;
 626         wait_queue_head_t wait_q;
 627         int (*callback)(struct qeth_card *, struct qeth_reply *,
 628                 unsigned long);
 629         u32 seqno;
 630         unsigned long offset;
 631         atomic_t received;
 632         int rc;
 633         void *param;
 634         struct qeth_card *card;
 635         atomic_t refcnt;
 636 };
 637
 638 struct qeth_card_blkt {
 639         int time_total;
 640         int inter_packet;
 641         int inter_packet_jumbo;
 642 };
 643
 644 #define QETH_BROADCAST_WITH_ECHO    0x01
 645 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 646 #define QETH_LAYER2_MAC_READ        0x01
 647 #define QETH_LAYER2_MAC_REGISTERED  0x02
 648 struct qeth_card_info {
 649         unsigned short unit_addr2;
 650         unsigned short cula;
 651         unsigned short chpid;
 652         __u16 func_level;
 653         char mcl_level[QETH_MCL_LENGTH + 1];
 654         int guestlan;
 655         int mac_bits;
 656         int portno;
 657         enum qeth_card_types type;
 658         enum qeth_link_types link_type;
 659         int is_multicast_different;
 660         int initial_mtu;
 661         int max_mtu;
 662         int broadcast_capable;
 663         int unique_id;
 664         bool layer_enforced;
 665         struct qeth_card_blkt blkt;
 666         enum qeth_ipa_promisc_modes promisc_mode;
 667         __u32 diagass_support;
 668         __u32 hwtrap;
 669 };
 670
 671 struct qeth_card_options {
 672         struct qeth_routing_info route4;
 673         struct qeth_ipa_info ipa4;
 674         struct qeth_ipa_info adp; /*Adapter parameters*/
 675         struct qeth_routing_info route6;
 676         struct qeth_ipa_info ipa6;
 677         struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
 678         struct qeth_vnicc_info vnicc; /* VNICC options */
 679         int fake_broadcast;
 680         int layer2;
 681         int performance_stats;
 682         int rx_sg_cb;
 683         enum qeth_ipa_isolation_modes isolation;
 684         enum qeth_ipa_isolation_modes prev_isolation;
 685         int sniffer;
 686         enum qeth_cq cq;
 687         char hsuid[9];
 688 };
 689
 690 /*
 691  * thread bits for qeth_card thread masks
 692  */
 693 enum qeth_threads {
 694         QETH_RECOVER_THREAD = 1,
 695 };
 696
 697 struct qeth_osn_info {
 698         int (*assist_cb)(struct net_device *dev, void *data);
 699         int (*data_cb)(struct sk_buff *skb);
 700 };
 701
 702 enum qeth_discipline_id {
 703         QETH_DISCIPLINE_UNDETERMINED = -1,
 704         QETH_DISCIPLINE_LAYER3 = 0,
 705         QETH_DISCIPLINE_LAYER2 = 1,
 706 };
 707
 708 struct qeth_discipline {
 709         const struct device_type *devtype;
 710         void (*start_poll)(struct ccw_device *, int, unsigned long);
 711         qdio_handler_t *input_handler;
 712         qdio_handler_t *output_handler;
 713         int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
 714         int (*recover)(void *ptr);
 715         int (*setup) (struct ccwgroup_device *);
 716         void (*remove) (struct ccwgroup_device *);
 717         int (*set_online) (struct ccwgroup_device *);
 718         int (*set_offline) (struct ccwgroup_device *);
 719         int (*freeze)(struct ccwgroup_device *);
 720         int (*thaw) (struct ccwgroup_device *);
 721         int (*restore)(struct ccwgroup_device *);
 722         int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
 723         int (*control_event_handler)(struct qeth_card *card,
 724                                         struct qeth_ipa_cmd *cmd);
 725 };
 726
 727 struct qeth_vlan_vid {
 728         struct list_head list;
 729         unsigned short vid;
 730 };
 731
 732 enum qeth_addr_disposition {
 733         QETH_DISP_ADDR_DELETE = 0,
 734         QETH_DISP_ADDR_DO_NOTHING = 1,
 735         QETH_DISP_ADDR_ADD = 2,
 736 };
 737
 738 struct qeth_rx {
 739         int b_count;
 740         int b_index;
 741         struct qdio_buffer_element *b_element;
 742         int e_offset;
 743         int qdio_err;
 744 };
 745
 746 struct carrier_info {
 747         __u8  card_type;
 748         __u16 port_mode;
 749         __u32 port_speed;
 750 };
 751
 752 struct qeth_switch_info {
 753         __u32 capabilities;
 754         __u32 settings;
 755 };
 756
 757 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 758
 759 struct qeth_card {
 760         struct list_head list;
 761         enum qeth_card_states state;
 762         int lan_online;
 763         spinlock_t lock;
 764         struct ccwgroup_device *gdev;
 765         struct qeth_channel read;
 766         struct qeth_channel write;
 767         struct qeth_channel data;
 768
 769         struct net_device *dev;
 770         struct net_device_stats stats;
 771
 772         struct qeth_card_info info;
 773         struct qeth_token token;
 774         struct qeth_seqno seqno;
 775         struct qeth_card_options options;
 776
 777         wait_queue_head_t wait_q;
 778         spinlock_t vlanlock;
 779         spinlock_t mclock;
 780         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 781         struct list_head vid_list;
 782         DECLARE_HASHTABLE(mac_htable, 4);
 783         DECLARE_HASHTABLE(ip_htable, 4);
 784         DECLARE_HASHTABLE(ip_mc_htable, 4);
 785         struct work_struct kernel_thread_starter;
 786         spinlock_t thread_mask_lock;
 787         unsigned long thread_start_mask;
 788         unsigned long thread_allowed_mask;
 789         unsigned long thread_running_mask;
 790         struct task_struct *recovery_task;
 791         spinlock_t ip_lock;
 792         struct qeth_ipato ipato;
 793         struct list_head cmd_waiter_list;
 794         /* QDIO buffer handling */
 795         struct qeth_qdio_info qdio;
 796         struct qeth_perf_stats perf_stats;
 797         int read_or_write_problem;
 798         struct qeth_osn_info osn_info;
 799         struct qeth_discipline *discipline;
 800         atomic_t force_alloc_skb;
 801         struct service_level qeth_service_level;
 802         struct qdio_ssqd_desc ssqd;
 803         debug_info_t *debug;
 804         struct mutex conf_mutex;
 805         struct mutex discipline_mutex;
 806         struct napi_struct napi;
 807         struct qeth_rx rx;
 808         struct delayed_work buffer_reclaim_work;
 809         int reclaim_index;
 810         struct work_struct close_dev_work;
 811 };
 812
 813 struct qeth_card_list_struct {
 814         struct list_head list;
 815         rwlock_t rwlock;
 816 };
 817
 818 struct qeth_trap_id {
 819         __u16 lparnr;
 820         char vmname[8];
 821         __u8 chpid;
 822         __u8 ssid;
 823         __u16 devno;
 824 } __packed;
 825
 826 /*some helper functions*/
 827 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 828
 829 /**
 830  * qeth_get_elements_for_range() -      find number of SBALEs to cover range.
 831  * @start:                              Start of the address range.
 832  * @end:                                Address after the end of the range.
 833  *
 834  * Returns the number of pages, and thus QDIO buffer elements, needed to cover
 835  * the specified address range.
 836  */
 837 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
 838 {
 839         return PFN_UP(end - 1) - PFN_DOWN(start);
 840 }
 841
 842 static inline int qeth_get_micros(void)
 843 {
 844         return (int) (get_tod_clock() >> 12);
 845 }
 846
 847 static inline int qeth_get_ip_version(struct sk_buff *skb)
 848 {
 849         __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
 850
 851         if (be16_to_cpu(*p) == ETH_P_8021Q)
 852                 p += 2;
 853         switch (be16_to_cpu(*p)) {
 854         case ETH_P_IPV6:
 855                 return 6;
 856         case ETH_P_IP:
 857                 return 4;
 858         default:
 859                 return 0;
 860         }
 861 }
 862
 863 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 864                 struct qeth_buffer_pool_entry *entry)
 865 {
 866         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 867 }
 868
 869 static inline int qeth_is_diagass_supported(struct qeth_card *card,
 870                 enum qeth_diags_cmds cmd)
 871 {
 872         return card->info.diagass_support & (__u32)cmd;
 873 }
 874
 875 extern struct qeth_discipline qeth_l2_discipline;
 876 extern struct qeth_discipline qeth_l3_discipline;
 877 extern const struct attribute_group *qeth_generic_attr_groups[];
 878 extern const struct attribute_group *qeth_osn_attr_groups[];
 879 extern const struct attribute_group qeth_device_attr_group;
 880 extern const struct attribute_group qeth_device_blkt_group;
 881 extern const struct device_type qeth_generic_devtype;
 882 extern struct workqueue_struct *qeth_wq;
 883
 884 int qeth_card_hw_is_reachable(struct qeth_card *);
 885 const char *qeth_get_cardname_short(struct qeth_card *);
 886 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 887 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 888 void qeth_core_free_discipline(struct qeth_card *);
 889
 890 /* exports for qeth discipline device drivers */
 891 extern struct qeth_card_list_struct qeth_core_card_list;
 892 extern struct kmem_cache *qeth_core_header_cache;
 893 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 894
 895 void qeth_set_recovery_task(struct qeth_card *);
 896 void qeth_clear_recovery_task(struct qeth_card *);
 897 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 898 int qeth_threads_running(struct qeth_card *, unsigned long);
 899 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 900 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 901 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 902 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 903 int qeth_core_hardsetup_card(struct qeth_card *);
 904 void qeth_print_status_message(struct qeth_card *);
 905 int qeth_init_qdio_queues(struct qeth_card *);
 906 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 907                   int (*reply_cb)
 908                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 909                   void *);
 910 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 911                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 912 int qeth_query_setadapterparms(struct qeth_card *);
 913 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 914                 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 915                 struct qeth_hdr **);
 916 void qeth_schedule_recovery(struct qeth_card *);
 917 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 918 int qeth_poll(struct napi_struct *napi, int budget);
 919 void qeth_qdio_input_handler(struct ccw_device *,
 920                 unsigned int, unsigned int, int,
 921                 int, unsigned long);
 922 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 923                         int, int, int, unsigned long);
 924 void qeth_clear_ipacmd_list(struct qeth_card *);
 925 int qeth_qdio_clear_card(struct qeth_card *, int);
 926 void qeth_clear_working_pool_list(struct qeth_card *);
 927 void qeth_clear_cmd_buffers(struct qeth_channel *);
 928 void qeth_clear_qdio_buffers(struct qeth_card *);
 929 void qeth_setadp_promisc_mode(struct qeth_card *);
 930 struct net_device_stats *qeth_get_stats(struct net_device *);
 931 int qeth_change_mtu(struct net_device *, int);
 932 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 933 void qeth_tx_timeout(struct net_device *);
 934 void qeth_prepare_control_data(struct qeth_card *, int,
 935                                 struct qeth_cmd_buffer *);
 936 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 937 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 938 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 939 int qeth_query_switch_attributes(struct qeth_card *card,
 940                                   struct qeth_switch_info *sw_info);
 941 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 942         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 943         void *reply_param);
 944 int qeth_bridgeport_query_ports(struct qeth_card *card,
 945         enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
 946 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
 947 int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
 948 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 949 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb,
 950                          int extra_elems, int data_offset);
 951 int qeth_get_elements_for_frags(struct sk_buff *);
 952 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
 953                              struct qeth_hdr *hdr, unsigned int offset,
 954                              unsigned int hd_len);
 955 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 956                         struct sk_buff *skb, struct qeth_hdr *hdr,
 957                         unsigned int offset, unsigned int hd_len,
 958                         int elements_needed);
 959 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 960 int qeth_core_get_sset_count(struct net_device *, int);
 961 void qeth_core_get_ethtool_stats(struct net_device *,
 962                                 struct ethtool_stats *, u64 *);
 963 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 964 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 965 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 966 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
 967                                          struct ethtool_link_ksettings *cmd);
 968 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
 969 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
 970 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 971 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 972 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 973 void qeth_trace_features(struct qeth_card *);
 974 void qeth_close_dev(struct qeth_card *);
 975 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
 976                                  __u16, long);
 977 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
 978                           long,
 979                           int (*reply_cb)(struct qeth_card *,
 980                                           struct qeth_reply *, unsigned long),
 981                           void *);
 982 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
 983 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
 984                                                  enum qeth_ipa_funcs,
 985                                                  __u16, __u16,
 986                                                  enum qeth_prot_versions);
 987 int qeth_set_features(struct net_device *, netdev_features_t);
 988 void qeth_recover_features(struct net_device *dev);
 989 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
 990 netdev_features_t qeth_features_check(struct sk_buff *skb,
 991                                       struct net_device *dev,
 992                                       netdev_features_t features);
 993 int qeth_vm_request_mac(struct qeth_card *card);
 994 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len);
 995
 996 /* exports for OSN */
 997 int qeth_osn_assist(struct net_device *, void *, int);
 998 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 999                 int (*assist_cb)(struct net_device *, void *),
1000                 int (*data_cb)(struct sk_buff *));
1001 void qeth_osn_deregister(struct net_device *);
1002
1003 #endif /* __QETH_CORE_H__ */