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 #include <linux/refcount.h>
  25
  26 #include <net/ipv6.h>
  27 #include <net/if_inet6.h>
  28 #include <net/addrconf.h>
  29
  30 #include <asm/debug.h>
  31 #include <asm/qdio.h>
  32 #include <asm/ccwdev.h>
  33 #include <asm/ccwgroup.h>
  34 #include <asm/sysinfo.h>
  35
  36 #include "qeth_core_mpc.h"
  37
  38 /**
  39  * Debug Facility stuff
  40  */
  41 enum qeth_dbf_names {
  42         QETH_DBF_SETUP,
  43         QETH_DBF_MSG,
  44         QETH_DBF_CTRL,
  45         QETH_DBF_INFOS  /* must be last element */
  46 };
  47
  48 struct qeth_dbf_info {
  49         char name[DEBUG_MAX_NAME_LEN];
  50         int pages;
  51         int areas;
  52         int len;
  53         int level;
  54         struct debug_view *view;
  55         debug_info_t *id;
  56 };
  57
  58 #define QETH_DBF_CTRL_LEN 256
  59
  60 #define QETH_DBF_TEXT(name, level, text) \
  61         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  62
  63 #define QETH_DBF_HEX(name, level, addr, len) \
  64         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  65
  66 #define QETH_DBF_MESSAGE(level, text...) \
  67         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  68
  69 #define QETH_DBF_TEXT_(name, level, text...) \
  70         qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
  71
  72 #define QETH_CARD_TEXT(card, level, text) \
  73         debug_text_event(card->debug, level, text)
  74
  75 #define QETH_CARD_HEX(card, level, addr, len) \
  76         debug_event(card->debug, level, (void *)(addr), len)
  77
  78 #define QETH_CARD_MESSAGE(card, text...) \
  79         debug_sprintf_event(card->debug, level, text)
  80
  81 #define QETH_CARD_TEXT_(card, level, text...) \
  82         qeth_dbf_longtext(card->debug, level, text)
  83
  84 #define SENSE_COMMAND_REJECT_BYTE 0
  85 #define SENSE_COMMAND_REJECT_FLAG 0x80
  86 #define SENSE_RESETTING_EVENT_BYTE 1
  87 #define SENSE_RESETTING_EVENT_FLAG 0x80
  88
  89 /*
  90  * Common IO related definitions
  91  */
  92 #define CARD_RDEV(card) card->read.ccwdev
  93 #define CARD_WDEV(card) card->write.ccwdev
  94 #define CARD_DDEV(card) card->data.ccwdev
  95 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  96 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  97 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  98 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  99 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
 100
 101 /**
 102  * card stuff
 103  */
 104 struct qeth_perf_stats {
 105         unsigned int bufs_rec;
 106         unsigned int bufs_sent;
 107
 108         unsigned int skbs_sent_pack;
 109         unsigned int bufs_sent_pack;
 110
 111         unsigned int sc_dp_p;
 112         unsigned int sc_p_dp;
 113         /* qdio_cq_handler: number of times called, time spent in */
 114         __u64 cq_start_time;
 115         unsigned int cq_cnt;
 116         unsigned int cq_time;
 117         /* qdio_input_handler: number of times called, time spent in */
 118         __u64 inbound_start_time;
 119         unsigned int inbound_cnt;
 120         unsigned int inbound_time;
 121         /* qeth_send_packet: number of times called, time spent in */
 122         __u64 outbound_start_time;
 123         unsigned int outbound_cnt;
 124         unsigned int outbound_time;
 125         /* qdio_output_handler: number of times called, time spent in */
 126         __u64 outbound_handler_start_time;
 127         unsigned int outbound_handler_cnt;
 128         unsigned int outbound_handler_time;
 129         /* number of calls to and time spent in do_QDIO for inbound queue */
 130         __u64 inbound_do_qdio_start_time;
 131         unsigned int inbound_do_qdio_cnt;
 132         unsigned int inbound_do_qdio_time;
 133         /* number of calls to and time spent in do_QDIO for outbound queues */
 134         __u64 outbound_do_qdio_start_time;
 135         unsigned int outbound_do_qdio_cnt;
 136         unsigned int outbound_do_qdio_time;
 137         unsigned int large_send_bytes;
 138         unsigned int large_send_cnt;
 139         unsigned int sg_skbs_sent;
 140         unsigned int sg_frags_sent;
 141         /* initial values when measuring starts */
 142         unsigned long initial_rx_packets;
 143         unsigned long initial_tx_packets;
 144         /* inbound scatter gather data */
 145         unsigned int sg_skbs_rx;
 146         unsigned int sg_frags_rx;
 147         unsigned int sg_alloc_page_rx;
 148         unsigned int tx_csum;
 149         unsigned int tx_lin;
 150         unsigned int tx_linfail;
 151 };
 152
 153 /* Routing stuff */
 154 struct qeth_routing_info {
 155         enum qeth_routing_types type;
 156 };
 157
 158 /* IPA stuff */
 159 struct qeth_ipa_info {
 160         __u32 supported_funcs;
 161         __u32 enabled_funcs;
 162 };
 163
 164 /* SETBRIDGEPORT stuff */
 165 enum qeth_sbp_roles {
 166         QETH_SBP_ROLE_NONE      = 0,
 167         QETH_SBP_ROLE_PRIMARY   = 1,
 168         QETH_SBP_ROLE_SECONDARY = 2,
 169 };
 170
 171 enum qeth_sbp_states {
 172         QETH_SBP_STATE_INACTIVE = 0,
 173         QETH_SBP_STATE_STANDBY  = 1,
 174         QETH_SBP_STATE_ACTIVE   = 2,
 175 };
 176
 177 #define QETH_SBP_HOST_NOTIFICATION 1
 178
 179 struct qeth_sbp_info {
 180         __u32 supported_funcs;
 181         enum qeth_sbp_roles role;
 182         __u32 hostnotification:1;
 183         __u32 reflect_promisc:1;
 184         __u32 reflect_promisc_primary:1;
 185 };
 186
 187 struct qeth_vnicc_info {
 188         /* supported/currently configured VNICCs; updated in IPA exchanges */
 189         u32 sup_chars;
 190         u32 cur_chars;
 191         /* supported commands: bitmasks which VNICCs support respective cmd */
 192         u32 set_char_sup;
 193         u32 getset_timeout_sup;
 194         /* timeout value for the learning characteristic */
 195         u32 learning_timeout;
 196         /* characteristics wanted/configured by user */
 197         u32 wanted_chars;
 198         /* has user explicitly enabled rx_bcast while online? */
 199         bool rx_bcast_enabled;
 200 };
 201
 202 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 203                 enum qeth_ipa_funcs func)
 204 {
 205         return (ipa->supported_funcs & func);
 206 }
 207
 208 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 209                 enum qeth_ipa_funcs func)
 210 {
 211         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 212 }
 213
 214 #define qeth_adp_supported(c, f) \
 215         qeth_is_ipa_supported(&c->options.adp, f)
 216 #define qeth_adp_enabled(c, f) \
 217         qeth_is_ipa_enabled(&c->options.adp, f)
 218 #define qeth_is_supported(c, f) \
 219         qeth_is_ipa_supported(&c->options.ipa4, f)
 220 #define qeth_is_enabled(c, f) \
 221         qeth_is_ipa_enabled(&c->options.ipa4, f)
 222 #define qeth_is_supported6(c, f) \
 223         qeth_is_ipa_supported(&c->options.ipa6, f)
 224 #define qeth_is_enabled6(c, f) \
 225         qeth_is_ipa_enabled(&c->options.ipa6, f)
 226 #define qeth_is_ipafunc_supported(c, prot, f) \
 227          ((prot == QETH_PROT_IPV6) ? \
 228                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 229 #define qeth_is_ipafunc_enabled(c, prot, f) \
 230          ((prot == QETH_PROT_IPV6) ? \
 231                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 232
 233 #define QETH_IDX_FUNC_LEVEL_OSD          0x0101
 234 #define QETH_IDX_FUNC_LEVEL_IQD          0x4108
 235
 236 #define QETH_REAL_CARD          1
 237 #define QETH_VLAN_CARD          2
 238 #define QETH_BUFSIZE            4096
 239
 240 /**
 241  * some more defs
 242  */
 243 #define QETH_TX_TIMEOUT         100 * HZ
 244 #define QETH_RCD_TIMEOUT        60 * HZ
 245 #define QETH_RECLAIM_WORK_TIME  HZ
 246 #define QETH_MAX_PORTNO         15
 247
 248 /*IPv6 address autoconfiguration stuff*/
 249 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 250 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 251
 252 /*****************************************************************************/
 253 /* QDIO queue and buffer handling                                            */
 254 /*****************************************************************************/
 255 #define QETH_MAX_QUEUES 4
 256 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 257 #define QETH_IN_BUF_COUNT_DEFAULT 64
 258 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
 259 #define QETH_IN_BUF_COUNT_MIN 8
 260 #define QETH_IN_BUF_COUNT_MAX 128
 261 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 262 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 263                  ((card)->qdio.in_buf_pool.buf_count / 2)
 264
 265 /* buffers we have to be behind before we get a PCI */
 266 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 267 /*enqueued free buffers left before we get a PCI*/
 268 #define QETH_PCI_THRESHOLD_B(card) 0
 269 /*not used unless the microcode gets patched*/
 270 #define QETH_PCI_TIMER_VALUE(card) 3
 271
 272 /* priority queing */
 273 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 274 #define QETH_DEFAULT_QUEUE    2
 275 #define QETH_NO_PRIO_QUEUEING 0
 276 #define QETH_PRIO_Q_ING_PREC  1
 277 #define QETH_PRIO_Q_ING_TOS   2
 278 #define QETH_PRIO_Q_ING_SKB   3
 279 #define QETH_PRIO_Q_ING_VLAN  4
 280
 281 /* Packing */
 282 #define QETH_LOW_WATERMARK_PACK  2
 283 #define QETH_HIGH_WATERMARK_PACK 5
 284 #define QETH_WATERMARK_PACK_FUZZ 1
 285
 286 /* large receive scatter gather copy break */
 287 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 288 #define QETH_RX_PULL_LEN 256
 289
 290 struct qeth_hdr_layer3 {
 291         __u8  id;
 292         __u8  flags;
 293         __u16 inbound_checksum; /*TSO:__u16 seqno */
 294         __u32 token;            /*TSO: __u32 reserved */
 295         __u16 length;
 296         __u8  vlan_prio;
 297         __u8  ext_flags;
 298         __u16 vlan_id;
 299         __u16 frame_offset;
 300         union {
 301                 /* TX: */
 302                 u8 ipv6_addr[16];
 303                 struct ipv4 {
 304                         u8 res[12];
 305                         u32 addr;
 306                 } ipv4;
 307                 /* RX: */
 308                 struct rx {
 309                         u8 res1[2];
 310                         u8 src_mac[6];
 311                         u8 res2[4];
 312                         u16 vlan_id;
 313                         u8 res3[2];
 314                 } rx;
 315         } next_hop;
 316 };
 317
 318 struct qeth_hdr_layer2 {
 319         __u8 id;
 320         __u8 flags[3];
 321         __u8 port_no;
 322         __u8 hdr_length;
 323         __u16 pkt_length;
 324         __u16 seq_no;
 325         __u16 vlan_id;
 326         __u32 reserved;
 327         __u8 reserved2[16];
 328 } __attribute__ ((packed));
 329
 330 struct qeth_hdr_osn {
 331         __u8 id;
 332         __u8 reserved;
 333         __u16 seq_no;
 334         __u16 reserved2;
 335         __u16 control_flags;
 336         __u16 pdu_length;
 337         __u8 reserved3[18];
 338         __u32 ccid;
 339 } __attribute__ ((packed));
 340
 341 struct qeth_hdr {
 342         union {
 343                 struct qeth_hdr_layer2 l2;
 344                 struct qeth_hdr_layer3 l3;
 345                 struct qeth_hdr_osn    osn;
 346         } hdr;
 347 } __attribute__ ((packed));
 348
 349 /*TCP Segmentation Offload header*/
 350 struct qeth_hdr_ext_tso {
 351         __u16 hdr_tot_len;
 352         __u8  imb_hdr_no;
 353         __u8  reserved;
 354         __u8  hdr_type;
 355         __u8  hdr_version;
 356         __u16 hdr_len;
 357         __u32 payload_len;
 358         __u16 mss;
 359         __u16 dg_hdr_len;
 360         __u8  padding[16];
 361 } __attribute__ ((packed));
 362
 363 struct qeth_hdr_tso {
 364         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 365         struct qeth_hdr_ext_tso ext;
 366 } __attribute__ ((packed));
 367
 368
 369 /* flags for qeth_hdr.flags */
 370 #define QETH_HDR_PASSTHRU 0x10
 371 #define QETH_HDR_IPV6     0x80
 372 #define QETH_HDR_CAST_MASK 0x07
 373 enum qeth_cast_flags {
 374         QETH_CAST_UNICAST   = 0x06,
 375         QETH_CAST_MULTICAST = 0x04,
 376         QETH_CAST_BROADCAST = 0x05,
 377         QETH_CAST_ANYCAST   = 0x07,
 378         QETH_CAST_NOCAST    = 0x00,
 379 };
 380
 381 enum qeth_layer2_frame_flags {
 382         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 383         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 384         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 385         QETH_LAYER2_FLAG_VLAN      = 0x10,
 386 };
 387
 388 enum qeth_header_ids {
 389         QETH_HEADER_TYPE_LAYER3 = 0x01,
 390         QETH_HEADER_TYPE_LAYER2 = 0x02,
 391         QETH_HEADER_TYPE_TSO    = 0x03,
 392         QETH_HEADER_TYPE_OSN    = 0x04,
 393 };
 394 /* flags for qeth_hdr.ext_flags */
 395 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 396 #define QETH_HDR_EXT_TOKEN_ID         0x02
 397 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 398 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 399 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 400 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 401 #define QETH_HDR_EXT_UDP              0x40 /*bit off for TCP*/
 402
 403 enum qeth_qdio_buffer_states {
 404         /*
 405          * inbound: read out by driver; owned by hardware in order to be filled
 406          * outbound: owned by driver in order to be filled
 407          */
 408         QETH_QDIO_BUF_EMPTY,
 409         /*
 410          * inbound: filled by hardware; owned by driver in order to be read out
 411          * outbound: filled by driver; owned by hardware in order to be sent
 412          */
 413         QETH_QDIO_BUF_PRIMED,
 414         /*
 415          * inbound: not applicable
 416          * outbound: identified to be pending in TPQ
 417          */
 418         QETH_QDIO_BUF_PENDING,
 419         /*
 420          * inbound: not applicable
 421          * outbound: found in completion queue
 422          */
 423         QETH_QDIO_BUF_IN_CQ,
 424         /*
 425          * inbound: not applicable
 426          * outbound: handled via transfer pending / completion queue
 427          */
 428         QETH_QDIO_BUF_HANDLED_DELAYED,
 429 };
 430
 431 enum qeth_qdio_info_states {
 432         QETH_QDIO_UNINITIALIZED,
 433         QETH_QDIO_ALLOCATED,
 434         QETH_QDIO_ESTABLISHED,
 435         QETH_QDIO_CLEANING
 436 };
 437
 438 struct qeth_buffer_pool_entry {
 439         struct list_head list;
 440         struct list_head init_list;
 441         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 442 };
 443
 444 struct qeth_qdio_buffer_pool {
 445         struct list_head entry_list;
 446         int buf_count;
 447 };
 448
 449 struct qeth_qdio_buffer {
 450         struct qdio_buffer *buffer;
 451         /* the buffer pool entry currently associated to this buffer */
 452         struct qeth_buffer_pool_entry *pool_entry;
 453         struct sk_buff *rx_skb;
 454 };
 455
 456 struct qeth_qdio_q {
 457         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 458         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 459         int next_buf_to_init;
 460 };
 461
 462 struct qeth_qdio_out_buffer {
 463         struct qdio_buffer *buffer;
 464         atomic_t state;
 465         int next_element_to_fill;
 466         struct sk_buff_head skb_list;
 467         int is_header[QDIO_MAX_ELEMENTS_PER_BUFFER];
 468
 469         struct qaob *aob;
 470         struct qeth_qdio_out_q *q;
 471         struct qeth_qdio_out_buffer *next_pending;
 472 };
 473
 474 struct qeth_card;
 475
 476 enum qeth_out_q_states {
 477        QETH_OUT_Q_UNLOCKED,
 478        QETH_OUT_Q_LOCKED,
 479        QETH_OUT_Q_LOCKED_FLUSH,
 480 };
 481
 482 struct qeth_qdio_out_q {
 483         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 484         struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
 485         struct qdio_outbuf_state *bufstates; /* convenience pointer */
 486         int queue_no;
 487         struct qeth_card *card;
 488         atomic_t state;
 489         int do_pack;
 490         /*
 491          * index of buffer to be filled by driver; state EMPTY or PACKING
 492          */
 493         int next_buf_to_fill;
 494         /*
 495          * number of buffers that are currently filled (PRIMED)
 496          * -> these buffers are hardware-owned
 497          */
 498         atomic_t used_buffers;
 499         /* indicates whether PCI flag must be set (or if one is outstanding) */
 500         atomic_t set_pci_flags_count;
 501 };
 502
 503 struct qeth_qdio_info {
 504         atomic_t state;
 505         /* input */
 506         int no_in_queues;
 507         struct qeth_qdio_q *in_q;
 508         struct qeth_qdio_q *c_q;
 509         struct qeth_qdio_buffer_pool in_buf_pool;
 510         struct qeth_qdio_buffer_pool init_pool;
 511         int in_buf_size;
 512
 513         /* output */
 514         int no_out_queues;
 515         struct qeth_qdio_out_q **out_qs;
 516         struct qdio_outbuf_state *out_bufstates;
 517
 518         /* priority queueing */
 519         int do_prio_queueing;
 520         int default_out_queue;
 521 };
 522
 523 /**
 524  * buffer stuff for read channel
 525  */
 526 #define QETH_CMD_BUFFER_NO      8
 527
 528 /**
 529  *  channel state machine
 530  */
 531 enum qeth_channel_states {
 532         CH_STATE_UP,
 533         CH_STATE_DOWN,
 534         CH_STATE_ACTIVATING,
 535         CH_STATE_HALTED,
 536         CH_STATE_STOPPED,
 537         CH_STATE_RCD,
 538         CH_STATE_RCD_DONE,
 539 };
 540 /**
 541  * card state machine
 542  */
 543 enum qeth_card_states {
 544         CARD_STATE_DOWN,
 545         CARD_STATE_HARDSETUP,
 546         CARD_STATE_SOFTSETUP,
 547         CARD_STATE_UP,
 548         CARD_STATE_RECOVER,
 549 };
 550
 551 /**
 552  * Protocol versions
 553  */
 554 enum qeth_prot_versions {
 555         QETH_PROT_IPV4 = 0x0004,
 556         QETH_PROT_IPV6 = 0x0006,
 557 };
 558
 559 enum qeth_ip_types {
 560         QETH_IP_TYPE_NORMAL,
 561         QETH_IP_TYPE_VIPA,
 562         QETH_IP_TYPE_RXIP,
 563 };
 564
 565 enum qeth_cmd_buffer_state {
 566         BUF_STATE_FREE,
 567         BUF_STATE_LOCKED,
 568         BUF_STATE_PROCESSED,
 569 };
 570
 571 enum qeth_cq {
 572         QETH_CQ_DISABLED = 0,
 573         QETH_CQ_ENABLED = 1,
 574         QETH_CQ_NOTAVAILABLE = 2,
 575 };
 576
 577 struct qeth_ipato {
 578         bool enabled;
 579         bool invert4;
 580         bool invert6;
 581         struct list_head entries;
 582 };
 583
 584 struct qeth_channel;
 585
 586 struct qeth_cmd_buffer {
 587         enum qeth_cmd_buffer_state state;
 588         struct qeth_channel *channel;
 589         unsigned char *data;
 590         int rc;
 591         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 592 };
 593
 594 static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
 595 {
 596         return (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
 597 }
 598
 599 /**
 600  * definition of a qeth channel, used for read and write
 601  */
 602 struct qeth_channel {
 603         enum qeth_channel_states state;
 604         struct ccw1 ccw;
 605         spinlock_t iob_lock;
 606         wait_queue_head_t wait_q;
 607         struct ccw_device *ccwdev;
 608 /*command buffer for control data*/
 609         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 610         atomic_t irq_pending;
 611         int io_buf_no;
 612         int buf_no;
 613 };
 614
 615 /**
 616  *  OSA card related definitions
 617  */
 618 struct qeth_token {
 619         __u32 issuer_rm_w;
 620         __u32 issuer_rm_r;
 621         __u32 cm_filter_w;
 622         __u32 cm_filter_r;
 623         __u32 cm_connection_w;
 624         __u32 cm_connection_r;
 625         __u32 ulp_filter_w;
 626         __u32 ulp_filter_r;
 627         __u32 ulp_connection_w;
 628         __u32 ulp_connection_r;
 629 };
 630
 631 struct qeth_seqno {
 632         __u32 trans_hdr;
 633         __u32 pdu_hdr;
 634         __u32 pdu_hdr_ack;
 635         __u16 ipa;
 636         __u32 pkt_seqno;
 637 };
 638
 639 struct qeth_reply {
 640         struct list_head list;
 641         wait_queue_head_t wait_q;
 642         int (*callback)(struct qeth_card *, struct qeth_reply *,
 643                 unsigned long);
 644         u32 seqno;
 645         unsigned long offset;
 646         atomic_t received;
 647         int rc;
 648         void *param;
 649         struct qeth_card *card;
 650         refcount_t refcnt;
 651 };
 652
 653 struct qeth_card_blkt {
 654         int time_total;
 655         int inter_packet;
 656         int inter_packet_jumbo;
 657 };
 658
 659 #define QETH_BROADCAST_WITH_ECHO    0x01
 660 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 661 #define QETH_LAYER2_MAC_READ        0x01
 662 #define QETH_LAYER2_MAC_REGISTERED  0x02
 663 struct qeth_card_info {
 664         unsigned short unit_addr2;
 665         unsigned short cula;
 666         unsigned short chpid;
 667         __u16 func_level;
 668         char mcl_level[QETH_MCL_LENGTH + 1];
 669         int guestlan;
 670         int mac_bits;
 671         int portno;
 672         enum qeth_card_types type;
 673         enum qeth_link_types link_type;
 674         int is_multicast_different;
 675         int initial_mtu;
 676         int max_mtu;
 677         int broadcast_capable;
 678         int unique_id;
 679         bool layer_enforced;
 680         struct qeth_card_blkt blkt;
 681         enum qeth_ipa_promisc_modes promisc_mode;
 682         __u32 diagass_support;
 683         __u32 hwtrap;
 684 };
 685
 686 struct qeth_card_options {
 687         struct qeth_routing_info route4;
 688         struct qeth_ipa_info ipa4;
 689         struct qeth_ipa_info adp; /*Adapter parameters*/
 690         struct qeth_routing_info route6;
 691         struct qeth_ipa_info ipa6;
 692         struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
 693         struct qeth_vnicc_info vnicc; /* VNICC options */
 694         int fake_broadcast;
 695         int layer2;
 696         int performance_stats;
 697         int rx_sg_cb;
 698         enum qeth_ipa_isolation_modes isolation;
 699         enum qeth_ipa_isolation_modes prev_isolation;
 700         int sniffer;
 701         enum qeth_cq cq;
 702         char hsuid[9];
 703 };
 704
 705 /*
 706  * thread bits for qeth_card thread masks
 707  */
 708 enum qeth_threads {
 709         QETH_RECOVER_THREAD = 1,
 710 };
 711
 712 struct qeth_osn_info {
 713         int (*assist_cb)(struct net_device *dev, void *data);
 714         int (*data_cb)(struct sk_buff *skb);
 715 };
 716
 717 enum qeth_discipline_id {
 718         QETH_DISCIPLINE_UNDETERMINED = -1,
 719         QETH_DISCIPLINE_LAYER3 = 0,
 720         QETH_DISCIPLINE_LAYER2 = 1,
 721 };
 722
 723 struct qeth_discipline {
 724         const struct device_type *devtype;
 725         void (*start_poll)(struct ccw_device *, int, unsigned long);
 726         qdio_handler_t *input_handler;
 727         qdio_handler_t *output_handler;
 728         int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
 729         int (*recover)(void *ptr);
 730         int (*setup) (struct ccwgroup_device *);
 731         void (*remove) (struct ccwgroup_device *);
 732         int (*set_online) (struct ccwgroup_device *);
 733         int (*set_offline) (struct ccwgroup_device *);
 734         int (*freeze)(struct ccwgroup_device *);
 735         int (*thaw) (struct ccwgroup_device *);
 736         int (*restore)(struct ccwgroup_device *);
 737         int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
 738         int (*control_event_handler)(struct qeth_card *card,
 739                                         struct qeth_ipa_cmd *cmd);
 740 };
 741
 742 struct qeth_vlan_vid {
 743         struct list_head list;
 744         unsigned short vid;
 745 };
 746
 747 enum qeth_addr_disposition {
 748         QETH_DISP_ADDR_DELETE = 0,
 749         QETH_DISP_ADDR_DO_NOTHING = 1,
 750         QETH_DISP_ADDR_ADD = 2,
 751 };
 752
 753 struct qeth_rx {
 754         int b_count;
 755         int b_index;
 756         struct qdio_buffer_element *b_element;
 757         int e_offset;
 758         int qdio_err;
 759 };
 760
 761 struct carrier_info {
 762         __u8  card_type;
 763         __u16 port_mode;
 764         __u32 port_speed;
 765 };
 766
 767 struct qeth_switch_info {
 768         __u32 capabilities;
 769         __u32 settings;
 770 };
 771
 772 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 773
 774 struct qeth_card {
 775         struct list_head list;
 776         enum qeth_card_states state;
 777         int lan_online;
 778         spinlock_t lock;
 779         struct ccwgroup_device *gdev;
 780         struct qeth_channel read;
 781         struct qeth_channel write;
 782         struct qeth_channel data;
 783
 784         struct net_device *dev;
 785         struct net_device_stats stats;
 786
 787         struct qeth_card_info info;
 788         struct qeth_token token;
 789         struct qeth_seqno seqno;
 790         struct qeth_card_options options;
 791
 792         wait_queue_head_t wait_q;
 793         spinlock_t vlanlock;
 794         spinlock_t mclock;
 795         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 796         struct list_head vid_list;
 797         DECLARE_HASHTABLE(mac_htable, 4);
 798         DECLARE_HASHTABLE(ip_htable, 4);
 799         DECLARE_HASHTABLE(ip_mc_htable, 4);
 800         struct work_struct kernel_thread_starter;
 801         spinlock_t thread_mask_lock;
 802         unsigned long thread_start_mask;
 803         unsigned long thread_allowed_mask;
 804         unsigned long thread_running_mask;
 805         struct task_struct *recovery_task;
 806         spinlock_t ip_lock;
 807         struct qeth_ipato ipato;
 808         struct list_head cmd_waiter_list;
 809         /* QDIO buffer handling */
 810         struct qeth_qdio_info qdio;
 811         struct qeth_perf_stats perf_stats;
 812         int read_or_write_problem;
 813         struct qeth_osn_info osn_info;
 814         struct qeth_discipline *discipline;
 815         atomic_t force_alloc_skb;
 816         struct service_level qeth_service_level;
 817         struct qdio_ssqd_desc ssqd;
 818         debug_info_t *debug;
 819         struct mutex conf_mutex;
 820         struct mutex discipline_mutex;
 821         struct napi_struct napi;
 822         struct qeth_rx rx;
 823         struct delayed_work buffer_reclaim_work;
 824         int reclaim_index;
 825         struct work_struct close_dev_work;
 826 };
 827
 828 struct qeth_card_list_struct {
 829         struct list_head list;
 830         rwlock_t rwlock;
 831 };
 832
 833 struct qeth_trap_id {
 834         __u16 lparnr;
 835         char vmname[8];
 836         __u8 chpid;
 837         __u8 ssid;
 838         __u16 devno;
 839 } __packed;
 840
 841 /*some helper functions*/
 842 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 843
 844 /**
 845  * qeth_get_elements_for_range() -      find number of SBALEs to cover range.
 846  * @start:                              Start of the address range.
 847  * @end:                                Address after the end of the range.
 848  *
 849  * Returns the number of pages, and thus QDIO buffer elements, needed to cover
 850  * the specified address range.
 851  */
 852 static inline int qeth_get_elements_for_range(addr_t start, addr_t end)
 853 {
 854         return PFN_UP(end) - PFN_DOWN(start);
 855 }
 856
 857 static inline int qeth_get_micros(void)
 858 {
 859         return (int) (get_tod_clock() >> 12);
 860 }
 861
 862 static inline int qeth_get_ip_version(struct sk_buff *skb)
 863 {
 864         struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
 865         __be16 prot = veth->h_vlan_proto;
 866
 867         if (prot == htons(ETH_P_8021Q))
 868                 prot = veth->h_vlan_encapsulated_proto;
 869
 870         switch (prot) {
 871         case htons(ETH_P_IPV6):
 872                 return 6;
 873         case htons(ETH_P_IP):
 874                 return 4;
 875         default:
 876                 return 0;
 877         }
 878 }
 879
 880 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 881                 struct qeth_buffer_pool_entry *entry)
 882 {
 883         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 884 }
 885
 886 static inline int qeth_is_diagass_supported(struct qeth_card *card,
 887                 enum qeth_diags_cmds cmd)
 888 {
 889         return card->info.diagass_support & (__u32)cmd;
 890 }
 891
 892 extern struct qeth_discipline qeth_l2_discipline;
 893 extern struct qeth_discipline qeth_l3_discipline;
 894 extern const struct attribute_group *qeth_generic_attr_groups[];
 895 extern const struct attribute_group *qeth_osn_attr_groups[];
 896 extern const struct attribute_group qeth_device_attr_group;
 897 extern const struct attribute_group qeth_device_blkt_group;
 898 extern const struct device_type qeth_generic_devtype;
 899 extern struct workqueue_struct *qeth_wq;
 900
 901 int qeth_card_hw_is_reachable(struct qeth_card *);
 902 const char *qeth_get_cardname_short(struct qeth_card *);
 903 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 904 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 905 void qeth_core_free_discipline(struct qeth_card *);
 906
 907 /* exports for qeth discipline device drivers */
 908 extern struct qeth_card_list_struct qeth_core_card_list;
 909 extern struct kmem_cache *qeth_core_header_cache;
 910 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 911
 912 void qeth_set_recovery_task(struct qeth_card *);
 913 void qeth_clear_recovery_task(struct qeth_card *);
 914 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 915 int qeth_threads_running(struct qeth_card *, unsigned long);
 916 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 917 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 918 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 919 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 920 int qeth_core_hardsetup_card(struct qeth_card *);
 921 void qeth_print_status_message(struct qeth_card *);
 922 int qeth_init_qdio_queues(struct qeth_card *);
 923 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 924                   int (*reply_cb)
 925                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 926                   void *);
 927 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 928                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 929 int qeth_query_setadapterparms(struct qeth_card *);
 930 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 931                 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 932                 struct qeth_hdr **);
 933 void qeth_schedule_recovery(struct qeth_card *);
 934 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 935 int qeth_poll(struct napi_struct *napi, int budget);
 936 void qeth_qdio_input_handler(struct ccw_device *,
 937                 unsigned int, unsigned int, int,
 938                 int, unsigned long);
 939 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 940                         int, int, int, unsigned long);
 941 void qeth_clear_ipacmd_list(struct qeth_card *);
 942 int qeth_qdio_clear_card(struct qeth_card *, int);
 943 void qeth_clear_working_pool_list(struct qeth_card *);
 944 void qeth_clear_cmd_buffers(struct qeth_channel *);
 945 void qeth_clear_qdio_buffers(struct qeth_card *);
 946 void qeth_setadp_promisc_mode(struct qeth_card *);
 947 struct net_device_stats *qeth_get_stats(struct net_device *);
 948 int qeth_change_mtu(struct net_device *, int);
 949 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 950 void qeth_tx_timeout(struct net_device *);
 951 void qeth_prepare_control_data(struct qeth_card *, int,
 952                                 struct qeth_cmd_buffer *);
 953 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 954 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 955 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 956 int qeth_query_switch_attributes(struct qeth_card *card,
 957                                   struct qeth_switch_info *sw_info);
 958 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 959         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 960         void *reply_param);
 961 int qeth_bridgeport_query_ports(struct qeth_card *card,
 962         enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
 963 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
 964 int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
 965 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 966 int qeth_get_elements_no(struct qeth_card *card, struct sk_buff *skb,
 967                          int extra_elems, int data_offset);
 968 int qeth_get_elements_for_frags(struct sk_buff *);
 969 int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb,
 970                              struct qeth_hdr *hdr, unsigned int offset,
 971                              unsigned int hd_len);
 972 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
 973                         struct sk_buff *skb, struct qeth_hdr *hdr,
 974                         unsigned int offset, unsigned int hd_len,
 975                         int elements_needed);
 976 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 977 int qeth_core_get_sset_count(struct net_device *, int);
 978 void qeth_core_get_ethtool_stats(struct net_device *,
 979                                 struct ethtool_stats *, u64 *);
 980 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 981 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 982 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 983 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
 984                                          struct ethtool_link_ksettings *cmd);
 985 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
 986 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
 987 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 988 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 989 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 990 void qeth_trace_features(struct qeth_card *);
 991 void qeth_close_dev(struct qeth_card *);
 992 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
 993                                  __u16, long);
 994 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
 995                           long,
 996                           int (*reply_cb)(struct qeth_card *,
 997                                           struct qeth_reply *, unsigned long),
 998                           void *);
 999 int qeth_setassparms_cb(struct qeth_card *, struct qeth_reply *, unsigned long);
1000 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *,
1001                                                  enum qeth_ipa_funcs,
1002                                                  __u16, __u16,
1003                                                  enum qeth_prot_versions);
1004 int qeth_set_features(struct net_device *, netdev_features_t);
1005 void qeth_recover_features(struct net_device *dev);
1006 netdev_features_t qeth_fix_features(struct net_device *, netdev_features_t);
1007 netdev_features_t qeth_features_check(struct sk_buff *skb,
1008                                       struct net_device *dev,
1009                                       netdev_features_t features);
1010 int qeth_vm_request_mac(struct qeth_card *card);
1011 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len);
1012
1013 /* exports for OSN */
1014 int qeth_osn_assist(struct net_device *, void *, int);
1015 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
1016                 int (*assist_cb)(struct net_device *, void *),
1017                 int (*data_cb)(struct sk_buff *));
1018 void qeth_osn_deregister(struct net_device *);
1019
1020 #endif /* __QETH_CORE_H__ */