linux/drivers/scsi/qla4xxx/ql4_def.h
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   1/*
   2 * QLogic iSCSI HBA Driver
   3 * Copyright (c)  2003-2013 QLogic Corporation
   4 *
   5 * See LICENSE.qla4xxx for copyright and licensing details.
   6 */
   7
   8#ifndef __QL4_DEF_H
   9#define __QL4_DEF_H
  10
  11#include <linux/kernel.h>
  12#include <linux/init.h>
  13#include <linux/types.h>
  14#include <linux/module.h>
  15#include <linux/list.h>
  16#include <linux/pci.h>
  17#include <linux/dma-mapping.h>
  18#include <linux/sched.h>
  19#include <linux/slab.h>
  20#include <linux/dmapool.h>
  21#include <linux/mempool.h>
  22#include <linux/spinlock.h>
  23#include <linux/workqueue.h>
  24#include <linux/delay.h>
  25#include <linux/interrupt.h>
  26#include <linux/mutex.h>
  27#include <linux/aer.h>
  28#include <linux/bsg-lib.h>
  29#include <linux/vmalloc.h>
  30
  31#include <net/tcp.h>
  32#include <scsi/scsi.h>
  33#include <scsi/scsi_host.h>
  34#include <scsi/scsi_device.h>
  35#include <scsi/scsi_cmnd.h>
  36#include <scsi/scsi_transport.h>
  37#include <scsi/scsi_transport_iscsi.h>
  38#include <scsi/scsi_bsg_iscsi.h>
  39#include <scsi/scsi_netlink.h>
  40#include <scsi/libiscsi.h>
  41
  42#include "ql4_dbg.h"
  43#include "ql4_nx.h"
  44#include "ql4_fw.h"
  45#include "ql4_nvram.h"
  46#include "ql4_83xx.h"
  47
  48#ifndef PCI_DEVICE_ID_QLOGIC_ISP4010
  49#define PCI_DEVICE_ID_QLOGIC_ISP4010    0x4010
  50#endif
  51
  52#ifndef PCI_DEVICE_ID_QLOGIC_ISP4022
  53#define PCI_DEVICE_ID_QLOGIC_ISP4022    0x4022
  54#endif
  55
  56#ifndef PCI_DEVICE_ID_QLOGIC_ISP4032
  57#define PCI_DEVICE_ID_QLOGIC_ISP4032    0x4032
  58#endif
  59
  60#ifndef PCI_DEVICE_ID_QLOGIC_ISP8022
  61#define PCI_DEVICE_ID_QLOGIC_ISP8022    0x8022
  62#endif
  63
  64#ifndef PCI_DEVICE_ID_QLOGIC_ISP8324
  65#define PCI_DEVICE_ID_QLOGIC_ISP8324    0x8032
  66#endif
  67
  68#ifndef PCI_DEVICE_ID_QLOGIC_ISP8042
  69#define PCI_DEVICE_ID_QLOGIC_ISP8042    0x8042
  70#endif
  71
  72#define ISP4XXX_PCI_FN_1        0x1
  73#define ISP4XXX_PCI_FN_2        0x3
  74
  75#define QLA_SUCCESS                     0
  76#define QLA_ERROR                       1
  77#define STATUS(status)          status == QLA_ERROR ? "FAILED" : "SUCCEEDED"
  78
  79/*
  80 * Data bit definitions
  81 */
  82#define BIT_0   0x1
  83#define BIT_1   0x2
  84#define BIT_2   0x4
  85#define BIT_3   0x8
  86#define BIT_4   0x10
  87#define BIT_5   0x20
  88#define BIT_6   0x40
  89#define BIT_7   0x80
  90#define BIT_8   0x100
  91#define BIT_9   0x200
  92#define BIT_10  0x400
  93#define BIT_11  0x800
  94#define BIT_12  0x1000
  95#define BIT_13  0x2000
  96#define BIT_14  0x4000
  97#define BIT_15  0x8000
  98#define BIT_16  0x10000
  99#define BIT_17  0x20000
 100#define BIT_18  0x40000
 101#define BIT_19  0x80000
 102#define BIT_20  0x100000
 103#define BIT_21  0x200000
 104#define BIT_22  0x400000
 105#define BIT_23  0x800000
 106#define BIT_24  0x1000000
 107#define BIT_25  0x2000000
 108#define BIT_26  0x4000000
 109#define BIT_27  0x8000000
 110#define BIT_28  0x10000000
 111#define BIT_29  0x20000000
 112#define BIT_30  0x40000000
 113#define BIT_31  0x80000000
 114
 115/**
 116 * Macros to help code, maintain, etc.
 117 **/
 118#define ql4_printk(level, ha, format, arg...) \
 119        dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
 120
 121
 122/*
 123 * Host adapter default definitions
 124 ***********************************/
 125#define MAX_HBAS                16
 126#define MAX_BUSES               1
 127#define MAX_TARGETS             MAX_DEV_DB_ENTRIES
 128#define MAX_LUNS                0xffff
 129#define MAX_AEN_ENTRIES         MAX_DEV_DB_ENTRIES
 130#define MAX_DDB_ENTRIES         MAX_DEV_DB_ENTRIES
 131#define MAX_PDU_ENTRIES         32
 132#define INVALID_ENTRY           0xFFFF
 133#define MAX_CMDS_TO_RISC        1024
 134#define MAX_SRBS                MAX_CMDS_TO_RISC
 135#define MBOX_AEN_REG_COUNT      8
 136#define MAX_INIT_RETRIES        5
 137
 138/*
 139 * Buffer sizes
 140 */
 141#define REQUEST_QUEUE_DEPTH             MAX_CMDS_TO_RISC
 142#define RESPONSE_QUEUE_DEPTH            64
 143#define QUEUE_SIZE                      64
 144#define DMA_BUFFER_SIZE                 512
 145#define IOCB_HIWAT_CUSHION              4
 146
 147/*
 148 * Misc
 149 */
 150#define MAC_ADDR_LEN                    6       /* in bytes */
 151#define IP_ADDR_LEN                     4       /* in bytes */
 152#define IPv6_ADDR_LEN                   16      /* IPv6 address size */
 153#define DRIVER_NAME                     "qla4xxx"
 154
 155#define MAX_LINKED_CMDS_PER_LUN         3
 156#define MAX_REQS_SERVICED_PER_INTR      1
 157
 158#define ISCSI_IPADDR_SIZE               4       /* IP address size */
 159#define ISCSI_ALIAS_SIZE                32      /* ISCSI Alias name size */
 160#define ISCSI_NAME_SIZE                 0xE0    /* ISCSI Name size */
 161
 162#define QL4_SESS_RECOVERY_TMO           120     /* iSCSI session */
 163                                                /* recovery timeout */
 164
 165#define LSDW(x) ((u32)((u64)(x)))
 166#define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
 167
 168#define DEV_DB_NON_PERSISTENT   0
 169#define DEV_DB_PERSISTENT       1
 170
 171#define COPY_ISID(dst_isid, src_isid) {                 \
 172        int i, j;                                       \
 173        for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;)  \
 174                dst_isid[i++] = src_isid[j--];          \
 175}
 176
 177#define SET_BITVAL(o, n, v) {   \
 178        if (o)                  \
 179                n |= v;         \
 180        else                    \
 181                n &= ~v;        \
 182}
 183
 184#define OP_STATE(o, f, p) {                     \
 185        p = (o & f) ? "enable" : "disable";     \
 186}
 187
 188/*
 189 * Retry & Timeout Values
 190 */
 191#define MBOX_TOV                        60
 192#define SOFT_RESET_TOV                  30
 193#define RESET_INTR_TOV                  3
 194#define SEMAPHORE_TOV                   10
 195#define ADAPTER_INIT_TOV                30
 196#define ADAPTER_RESET_TOV               180
 197#define EXTEND_CMD_TOV                  60
 198#define WAIT_CMD_TOV                    5
 199#define EH_WAIT_CMD_TOV                 120
 200#define FIRMWARE_UP_TOV                 60
 201#define RESET_FIRMWARE_TOV              30
 202#define LOGOUT_TOV                      10
 203#define IOCB_TOV_MARGIN                 10
 204#define RELOGIN_TOV                     18
 205#define ISNS_DEREG_TOV                  5
 206#define HBA_ONLINE_TOV                  30
 207#define DISABLE_ACB_TOV                 30
 208#define IP_CONFIG_TOV                   30
 209#define LOGIN_TOV                       12
 210#define BOOT_LOGIN_RESP_TOV             60
 211
 212#define MAX_RESET_HA_RETRIES            2
 213#define FW_ALIVE_WAIT_TOV               3
 214#define IDC_EXTEND_TOV                  8
 215#define IDC_COMP_TOV                    5
 216#define LINK_UP_COMP_TOV                30
 217
 218#define CMD_SP(Cmnd)                    ((Cmnd)->SCp.ptr)
 219
 220/*
 221 * SCSI Request Block structure  (srb)  that is placed
 222 * on cmd->SCp location of every I/O     [We have 22 bytes available]
 223 */
 224struct srb {
 225        struct list_head list;  /* (8)   */
 226        struct scsi_qla_host *ha;       /* HA the SP is queued on */
 227        struct ddb_entry *ddb;
 228        uint16_t flags;         /* (1) Status flags. */
 229
 230#define SRB_DMA_VALID           BIT_3   /* DMA Buffer mapped. */
 231#define SRB_GOT_SENSE           BIT_4   /* sense data received. */
 232        uint8_t state;          /* (1) Status flags. */
 233
 234#define SRB_NO_QUEUE_STATE       0      /* Request is in between states */
 235#define SRB_FREE_STATE           1
 236#define SRB_ACTIVE_STATE         3
 237#define SRB_ACTIVE_TIMEOUT_STATE 4
 238#define SRB_SUSPENDED_STATE      7      /* Request in suspended state */
 239
 240        struct scsi_cmnd *cmd;  /* (4) SCSI command block */
 241        dma_addr_t dma_handle;  /* (4) for unmap of single transfers */
 242        struct kref srb_ref;    /* reference count for this srb */
 243        uint8_t err_id;         /* error id */
 244#define SRB_ERR_PORT       1    /* Request failed because "port down" */
 245#define SRB_ERR_LOOP       2    /* Request failed because "loop down" */
 246#define SRB_ERR_DEVICE     3    /* Request failed because "device error" */
 247#define SRB_ERR_OTHER      4
 248
 249        uint16_t reserved;
 250        uint16_t iocb_tov;
 251        uint16_t iocb_cnt;      /* Number of used iocbs */
 252        uint16_t cc_stat;
 253
 254        /* Used for extended sense / status continuation */
 255        uint8_t *req_sense_ptr;
 256        uint16_t req_sense_len;
 257        uint16_t reserved2;
 258};
 259
 260/* Mailbox request block structure */
 261struct mrb {
 262        struct scsi_qla_host *ha;
 263        struct mbox_cmd_iocb *mbox;
 264        uint32_t mbox_cmd;
 265        uint16_t iocb_cnt;              /* Number of used iocbs */
 266        uint32_t pid;
 267};
 268
 269/*
 270 * Asynchronous Event Queue structure
 271 */
 272struct aen {
 273        uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
 274};
 275
 276struct ql4_aen_log {
 277        int count;
 278        struct aen entry[MAX_AEN_ENTRIES];
 279};
 280
 281/*
 282 * Device Database (DDB) structure
 283 */
 284struct ddb_entry {
 285        struct scsi_qla_host *ha;
 286        struct iscsi_cls_session *sess;
 287        struct iscsi_cls_conn *conn;
 288
 289        uint16_t fw_ddb_index;  /* DDB firmware index */
 290        uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
 291        uint16_t ddb_type;
 292#define FLASH_DDB 0x01
 293
 294        struct dev_db_entry fw_ddb_entry;
 295        int (*unblock_sess)(struct iscsi_cls_session *cls_session);
 296        int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 297                          struct ddb_entry *ddb_entry, uint32_t state);
 298
 299        /* Driver Re-login  */
 300        unsigned long flags;              /* DDB Flags */
 301#define DDB_CONN_CLOSE_FAILURE          0 /* 0x00000001 */
 302
 303        uint16_t default_relogin_timeout; /*  Max time to wait for
 304                                           *  relogin to complete */
 305        atomic_t retry_relogin_timer;     /* Min Time between relogins
 306                                           * (4000 only) */
 307        atomic_t relogin_timer;           /* Max Time to wait for
 308                                           * relogin to complete */
 309        atomic_t relogin_retry_count;     /* Num of times relogin has been
 310                                           * retried */
 311        uint32_t default_time2wait;       /* Default Min time between
 312                                           * relogins (+aens) */
 313        uint16_t chap_tbl_idx;
 314};
 315
 316struct qla_ddb_index {
 317        struct list_head list;
 318        uint16_t fw_ddb_idx;
 319        uint16_t flash_ddb_idx;
 320        struct dev_db_entry fw_ddb;
 321        uint8_t flash_isid[6];
 322};
 323
 324#define DDB_IPADDR_LEN 64
 325
 326struct ql4_tuple_ddb {
 327        int port;
 328        int tpgt;
 329        char ip_addr[DDB_IPADDR_LEN];
 330        char iscsi_name[ISCSI_NAME_SIZE];
 331        uint16_t options;
 332#define DDB_OPT_IPV6 0x0e0e
 333#define DDB_OPT_IPV4 0x0f0f
 334        uint8_t isid[6];
 335};
 336
 337/*
 338 * DDB states.
 339 */
 340#define DDB_STATE_DEAD          0       /* We can no longer talk to
 341                                         * this device */
 342#define DDB_STATE_ONLINE        1       /* Device ready to accept
 343                                         * commands */
 344#define DDB_STATE_MISSING       2       /* Device logged off, trying
 345                                         * to re-login */
 346
 347/*
 348 * DDB flags.
 349 */
 350#define DF_RELOGIN              0       /* Relogin to device */
 351#define DF_BOOT_TGT             1       /* Boot target entry */
 352#define DF_ISNS_DISCOVERED      2       /* Device was discovered via iSNS */
 353#define DF_FO_MASKED            3
 354#define DF_DISABLE_RELOGIN              4       /* Disable relogin to device */
 355
 356enum qla4_work_type {
 357        QLA4_EVENT_AEN,
 358        QLA4_EVENT_PING_STATUS,
 359};
 360
 361struct qla4_work_evt {
 362        struct list_head list;
 363        enum qla4_work_type type;
 364        union {
 365                struct {
 366                        enum iscsi_host_event_code code;
 367                        uint32_t data_size;
 368                        uint8_t data[0];
 369                } aen;
 370                struct {
 371                        uint32_t status;
 372                        uint32_t pid;
 373                        uint32_t data_size;
 374                        uint8_t data[0];
 375                } ping;
 376        } u;
 377};
 378
 379struct ql82xx_hw_data {
 380        /* Offsets for flash/nvram access (set to ~0 if not used). */
 381        uint32_t flash_conf_off;
 382        uint32_t flash_data_off;
 383
 384        uint32_t fdt_wrt_disable;
 385        uint32_t fdt_erase_cmd;
 386        uint32_t fdt_block_size;
 387        uint32_t fdt_unprotect_sec_cmd;
 388        uint32_t fdt_protect_sec_cmd;
 389
 390        uint32_t flt_region_flt;
 391        uint32_t flt_region_fdt;
 392        uint32_t flt_region_boot;
 393        uint32_t flt_region_bootload;
 394        uint32_t flt_region_fw;
 395
 396        uint32_t flt_iscsi_param;
 397        uint32_t flt_region_chap;
 398        uint32_t flt_chap_size;
 399        uint32_t flt_region_ddb;
 400        uint32_t flt_ddb_size;
 401};
 402
 403struct qla4_8xxx_legacy_intr_set {
 404        uint32_t int_vec_bit;
 405        uint32_t tgt_status_reg;
 406        uint32_t tgt_mask_reg;
 407        uint32_t pci_int_reg;
 408};
 409
 410/* MSI-X Support */
 411#define QLA_MSIX_ENTRIES        2
 412
 413/*
 414 * ISP Operations
 415 */
 416struct isp_operations {
 417        int (*iospace_config) (struct scsi_qla_host *ha);
 418        void (*pci_config) (struct scsi_qla_host *);
 419        void (*disable_intrs) (struct scsi_qla_host *);
 420        void (*enable_intrs) (struct scsi_qla_host *);
 421        int (*start_firmware) (struct scsi_qla_host *);
 422        int (*restart_firmware) (struct scsi_qla_host *);
 423        irqreturn_t (*intr_handler) (int , void *);
 424        void (*interrupt_service_routine) (struct scsi_qla_host *, uint32_t);
 425        int (*need_reset) (struct scsi_qla_host *);
 426        int (*reset_chip) (struct scsi_qla_host *);
 427        int (*reset_firmware) (struct scsi_qla_host *);
 428        void (*queue_iocb) (struct scsi_qla_host *);
 429        void (*complete_iocb) (struct scsi_qla_host *);
 430        uint16_t (*rd_shdw_req_q_out) (struct scsi_qla_host *);
 431        uint16_t (*rd_shdw_rsp_q_in) (struct scsi_qla_host *);
 432        int (*get_sys_info) (struct scsi_qla_host *);
 433        uint32_t (*rd_reg_direct) (struct scsi_qla_host *, ulong);
 434        void (*wr_reg_direct) (struct scsi_qla_host *, ulong, uint32_t);
 435        int (*rd_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t *);
 436        int (*wr_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t);
 437        int (*idc_lock) (struct scsi_qla_host *);
 438        void (*idc_unlock) (struct scsi_qla_host *);
 439        void (*rom_lock_recovery) (struct scsi_qla_host *);
 440        void (*queue_mailbox_command) (struct scsi_qla_host *, uint32_t *, int);
 441        void (*process_mailbox_interrupt) (struct scsi_qla_host *, int);
 442};
 443
 444struct ql4_mdump_size_table {
 445        uint32_t size;
 446        uint32_t size_cmask_02;
 447        uint32_t size_cmask_04;
 448        uint32_t size_cmask_08;
 449        uint32_t size_cmask_10;
 450        uint32_t size_cmask_FF;
 451        uint32_t version;
 452};
 453
 454/*qla4xxx ipaddress configuration details */
 455struct ipaddress_config {
 456        uint16_t ipv4_options;
 457        uint16_t tcp_options;
 458        uint16_t ipv4_vlan_tag;
 459        uint8_t ipv4_addr_state;
 460        uint8_t ip_address[IP_ADDR_LEN];
 461        uint8_t subnet_mask[IP_ADDR_LEN];
 462        uint8_t gateway[IP_ADDR_LEN];
 463        uint32_t ipv6_options;
 464        uint32_t ipv6_addl_options;
 465        uint8_t ipv6_link_local_state;
 466        uint8_t ipv6_addr0_state;
 467        uint8_t ipv6_addr1_state;
 468        uint8_t ipv6_default_router_state;
 469        uint16_t ipv6_vlan_tag;
 470        struct in6_addr ipv6_link_local_addr;
 471        struct in6_addr ipv6_addr0;
 472        struct in6_addr ipv6_addr1;
 473        struct in6_addr ipv6_default_router_addr;
 474        uint16_t eth_mtu_size;
 475        uint16_t ipv4_port;
 476        uint16_t ipv6_port;
 477        uint8_t control;
 478        uint16_t ipv6_tcp_options;
 479        uint8_t tcp_wsf;
 480        uint8_t ipv6_tcp_wsf;
 481        uint8_t ipv4_tos;
 482        uint8_t ipv4_cache_id;
 483        uint8_t ipv6_cache_id;
 484        uint8_t ipv4_alt_cid_len;
 485        uint8_t ipv4_alt_cid[11];
 486        uint8_t ipv4_vid_len;
 487        uint8_t ipv4_vid[11];
 488        uint8_t ipv4_ttl;
 489        uint16_t ipv6_flow_lbl;
 490        uint8_t ipv6_traffic_class;
 491        uint8_t ipv6_hop_limit;
 492        uint32_t ipv6_nd_reach_time;
 493        uint32_t ipv6_nd_rexmit_timer;
 494        uint32_t ipv6_nd_stale_timeout;
 495        uint8_t ipv6_dup_addr_detect_count;
 496        uint32_t ipv6_gw_advrt_mtu;
 497        uint16_t def_timeout;
 498        uint8_t abort_timer;
 499        uint16_t iscsi_options;
 500        uint16_t iscsi_max_pdu_size;
 501        uint16_t iscsi_first_burst_len;
 502        uint16_t iscsi_max_outstnd_r2t;
 503        uint16_t iscsi_max_burst_len;
 504        uint8_t iscsi_name[224];
 505};
 506
 507#define QL4_CHAP_MAX_NAME_LEN 256
 508#define QL4_CHAP_MAX_SECRET_LEN 100
 509#define LOCAL_CHAP      0
 510#define BIDI_CHAP       1
 511
 512struct ql4_chap_format {
 513        u8  intr_chap_name[QL4_CHAP_MAX_NAME_LEN];
 514        u8  intr_secret[QL4_CHAP_MAX_SECRET_LEN];
 515        u8  target_chap_name[QL4_CHAP_MAX_NAME_LEN];
 516        u8  target_secret[QL4_CHAP_MAX_SECRET_LEN];
 517        u16 intr_chap_name_length;
 518        u16 intr_secret_length;
 519        u16 target_chap_name_length;
 520        u16 target_secret_length;
 521};
 522
 523struct ip_address_format {
 524        u8 ip_type;
 525        u8 ip_address[16];
 526};
 527
 528struct  ql4_conn_info {
 529        u16     dest_port;
 530        struct  ip_address_format dest_ipaddr;
 531        struct  ql4_chap_format chap;
 532};
 533
 534struct ql4_boot_session_info {
 535        u8      target_name[224];
 536        struct  ql4_conn_info conn_list[1];
 537};
 538
 539struct ql4_boot_tgt_info {
 540        struct ql4_boot_session_info boot_pri_sess;
 541        struct ql4_boot_session_info boot_sec_sess;
 542};
 543
 544/*
 545 * Linux Host Adapter structure
 546 */
 547struct scsi_qla_host {
 548        /* Linux adapter configuration data */
 549        unsigned long flags;
 550
 551#define AF_ONLINE                       0 /* 0x00000001 */
 552#define AF_INIT_DONE                    1 /* 0x00000002 */
 553#define AF_MBOX_COMMAND                 2 /* 0x00000004 */
 554#define AF_MBOX_COMMAND_DONE            3 /* 0x00000008 */
 555#define AF_ST_DISCOVERY_IN_PROGRESS     4 /* 0x00000010 */
 556#define AF_INTERRUPTS_ON                6 /* 0x00000040 */
 557#define AF_GET_CRASH_RECORD             7 /* 0x00000080 */
 558#define AF_LINK_UP                      8 /* 0x00000100 */
 559#define AF_LOOPBACK                     9 /* 0x00000200 */
 560#define AF_IRQ_ATTACHED                 10 /* 0x00000400 */
 561#define AF_DISABLE_ACB_COMPLETE         11 /* 0x00000800 */
 562#define AF_HA_REMOVAL                   12 /* 0x00001000 */
 563#define AF_MBOX_COMMAND_NOPOLL          18 /* 0x00040000 */
 564#define AF_FW_RECOVERY                  19 /* 0x00080000 */
 565#define AF_EEH_BUSY                     20 /* 0x00100000 */
 566#define AF_PCI_CHANNEL_IO_PERM_FAILURE  21 /* 0x00200000 */
 567#define AF_BUILD_DDB_LIST               22 /* 0x00400000 */
 568#define AF_82XX_FW_DUMPED               24 /* 0x01000000 */
 569#define AF_8XXX_RST_OWNER               25 /* 0x02000000 */
 570#define AF_82XX_DUMP_READING            26 /* 0x04000000 */
 571#define AF_83XX_IOCB_INTR_ON            28 /* 0x10000000 */
 572#define AF_83XX_MBOX_INTR_ON            29 /* 0x20000000 */
 573
 574        unsigned long dpc_flags;
 575
 576#define DPC_RESET_HA                    1 /* 0x00000002 */
 577#define DPC_RETRY_RESET_HA              2 /* 0x00000004 */
 578#define DPC_RELOGIN_DEVICE              3 /* 0x00000008 */
 579#define DPC_RESET_HA_FW_CONTEXT         4 /* 0x00000010 */
 580#define DPC_RESET_HA_INTR               5 /* 0x00000020 */
 581#define DPC_ISNS_RESTART                7 /* 0x00000080 */
 582#define DPC_AEN                         9 /* 0x00000200 */
 583#define DPC_GET_DHCP_IP_ADDR            15 /* 0x00008000 */
 584#define DPC_LINK_CHANGED                18 /* 0x00040000 */
 585#define DPC_RESET_ACTIVE                20 /* 0x00100000 */
 586#define DPC_HA_UNRECOVERABLE            21 /* 0x00200000 ISP-82xx only*/
 587#define DPC_HA_NEED_QUIESCENT           22 /* 0x00400000 ISP-82xx only*/
 588#define DPC_POST_IDC_ACK                23 /* 0x00800000 */
 589#define DPC_RESTORE_ACB                 24 /* 0x01000000 */
 590#define DPC_SYSFS_DDB_EXPORT            25 /* 0x02000000 */
 591
 592        struct Scsi_Host *host; /* pointer to host data */
 593        uint32_t tot_ddbs;
 594
 595        uint16_t iocb_cnt;
 596        uint16_t iocb_hiwat;
 597
 598        /* SRB cache. */
 599#define SRB_MIN_REQ     128
 600        mempool_t *srb_mempool;
 601
 602        /* pci information */
 603        struct pci_dev *pdev;
 604
 605        struct isp_reg __iomem *reg; /* Base I/O address */
 606        unsigned long pio_address;
 607        unsigned long pio_length;
 608#define MIN_IOBASE_LEN          0x100
 609
 610        uint16_t req_q_count;
 611
 612        unsigned long host_no;
 613
 614        /* NVRAM registers */
 615        struct eeprom_data *nvram;
 616        spinlock_t hardware_lock ____cacheline_aligned;
 617        uint32_t eeprom_cmd_data;
 618
 619        /* Counters for general statistics */
 620        uint64_t isr_count;
 621        uint64_t adapter_error_count;
 622        uint64_t device_error_count;
 623        uint64_t total_io_count;
 624        uint64_t total_mbytes_xferred;
 625        uint64_t link_failure_count;
 626        uint64_t invalid_crc_count;
 627        uint32_t bytes_xfered;
 628        uint32_t spurious_int_count;
 629        uint32_t aborted_io_count;
 630        uint32_t io_timeout_count;
 631        uint32_t mailbox_timeout_count;
 632        uint32_t seconds_since_last_intr;
 633        uint32_t seconds_since_last_heartbeat;
 634        uint32_t mac_index;
 635
 636        /* Info Needed for Management App */
 637        /* --- From GetFwVersion --- */
 638        uint32_t firmware_version[2];
 639        uint32_t patch_number;
 640        uint32_t build_number;
 641        uint32_t board_id;
 642
 643        /* --- From Init_FW --- */
 644        /* init_cb_t *init_cb; */
 645        uint16_t firmware_options;
 646        uint8_t alias[32];
 647        uint8_t name_string[256];
 648        uint8_t heartbeat_interval;
 649
 650        /* --- From FlashSysInfo --- */
 651        uint8_t my_mac[MAC_ADDR_LEN];
 652        uint8_t serial_number[16];
 653        uint16_t port_num;
 654        /* --- From GetFwState --- */
 655        uint32_t firmware_state;
 656        uint32_t addl_fw_state;
 657
 658        /* Linux kernel thread */
 659        struct workqueue_struct *dpc_thread;
 660        struct work_struct dpc_work;
 661
 662        /* Linux timer thread */
 663        struct timer_list timer;
 664        uint32_t timer_active;
 665
 666        /* Recovery Timers */
 667        atomic_t check_relogin_timeouts;
 668        uint32_t retry_reset_ha_cnt;
 669        uint32_t isp_reset_timer;       /* reset test timer */
 670        uint32_t nic_reset_timer;       /* simulated nic reset test timer */
 671        int eh_start;
 672        struct list_head free_srb_q;
 673        uint16_t free_srb_q_count;
 674        uint16_t num_srbs_allocated;
 675
 676        /* DMA Memory Block */
 677        void *queues;
 678        dma_addr_t queues_dma;
 679        unsigned long queues_len;
 680
 681#define MEM_ALIGN_VALUE \
 682            ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \
 683             sizeof(struct queue_entry))
 684        /* request and response queue variables */
 685        dma_addr_t request_dma;
 686        struct queue_entry *request_ring;
 687        struct queue_entry *request_ptr;
 688        dma_addr_t response_dma;
 689        struct queue_entry *response_ring;
 690        struct queue_entry *response_ptr;
 691        dma_addr_t shadow_regs_dma;
 692        struct shadow_regs *shadow_regs;
 693        uint16_t request_in;    /* Current indexes. */
 694        uint16_t request_out;
 695        uint16_t response_in;
 696        uint16_t response_out;
 697
 698        /* aen queue variables */
 699        uint16_t aen_q_count;   /* Number of available aen_q entries */
 700        uint16_t aen_in;        /* Current indexes */
 701        uint16_t aen_out;
 702        struct aen aen_q[MAX_AEN_ENTRIES];
 703
 704        struct ql4_aen_log aen_log;/* tracks all aens */
 705
 706        /* This mutex protects several threads to do mailbox commands
 707         * concurrently.
 708         */
 709        struct mutex  mbox_sem;
 710
 711        /* temporary mailbox status registers */
 712        volatile uint8_t mbox_status_count;
 713        volatile uint32_t mbox_status[MBOX_REG_COUNT];
 714
 715        /* FW ddb index map */
 716        struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
 717
 718        /* Saved srb for status continuation entry processing */
 719        struct srb *status_srb;
 720
 721        uint8_t acb_version;
 722
 723        /* qla82xx specific fields */
 724        struct device_reg_82xx  __iomem *qla4_82xx_reg; /* Base I/O address */
 725        unsigned long nx_pcibase;       /* Base I/O address */
 726        uint8_t *nx_db_rd_ptr;          /* Doorbell read pointer */
 727        unsigned long nx_db_wr_ptr;     /* Door bell write pointer */
 728        unsigned long first_page_group_start;
 729        unsigned long first_page_group_end;
 730
 731        uint32_t crb_win;
 732        uint32_t curr_window;
 733        uint32_t ddr_mn_window;
 734        unsigned long mn_win_crb;
 735        unsigned long ms_win_crb;
 736        int qdr_sn_window;
 737        rwlock_t hw_lock;
 738        uint16_t func_num;
 739        int link_width;
 740
 741        struct qla4_8xxx_legacy_intr_set nx_legacy_intr;
 742        u32 nx_crb_mask;
 743
 744        uint8_t revision_id;
 745        uint32_t fw_heartbeat_counter;
 746
 747        struct isp_operations *isp_ops;
 748        struct ql82xx_hw_data hw;
 749
 750        uint32_t nx_dev_init_timeout;
 751        uint32_t nx_reset_timeout;
 752        void *fw_dump;
 753        uint32_t fw_dump_size;
 754        uint32_t fw_dump_capture_mask;
 755        void *fw_dump_tmplt_hdr;
 756        uint32_t fw_dump_tmplt_size;
 757        uint32_t fw_dump_skip_size;
 758
 759        struct completion mbx_intr_comp;
 760
 761        struct ipaddress_config ip_config;
 762        struct iscsi_iface *iface_ipv4;
 763        struct iscsi_iface *iface_ipv6_0;
 764        struct iscsi_iface *iface_ipv6_1;
 765
 766        /* --- From About Firmware --- */
 767        struct about_fw_info fw_info;
 768        uint32_t fw_uptime_secs;  /* seconds elapsed since fw bootup */
 769        uint32_t fw_uptime_msecs; /* milliseconds beyond elapsed seconds */
 770        uint16_t def_timeout; /* Default login timeout */
 771
 772        uint32_t flash_state;
 773#define QLFLASH_WAITING         0
 774#define QLFLASH_READING         1
 775#define QLFLASH_WRITING         2
 776        struct dma_pool *chap_dma_pool;
 777        uint8_t *chap_list; /* CHAP table cache */
 778        struct mutex  chap_sem;
 779
 780#define CHAP_DMA_BLOCK_SIZE    512
 781        struct workqueue_struct *task_wq;
 782        unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
 783#define SYSFS_FLAG_FW_SEL_BOOT 2
 784        struct iscsi_boot_kset *boot_kset;
 785        struct ql4_boot_tgt_info boot_tgt;
 786        uint16_t phy_port_num;
 787        uint16_t phy_port_cnt;
 788        uint16_t iscsi_pci_func_cnt;
 789        uint8_t model_name[16];
 790        struct completion disable_acb_comp;
 791        struct dma_pool *fw_ddb_dma_pool;
 792#define DDB_DMA_BLOCK_SIZE 512
 793        uint16_t pri_ddb_idx;
 794        uint16_t sec_ddb_idx;
 795        int is_reset;
 796        uint16_t temperature;
 797
 798        /* event work list */
 799        struct list_head work_list;
 800        spinlock_t work_lock;
 801
 802        /* mbox iocb */
 803#define MAX_MRB         128
 804        struct mrb *active_mrb_array[MAX_MRB];
 805        uint32_t mrb_index;
 806
 807        uint32_t *reg_tbl;
 808        struct qla4_83xx_reset_template reset_tmplt;
 809        struct device_reg_83xx  __iomem *qla4_83xx_reg; /* Base I/O address
 810                                                           for ISP8324 and
 811                                                           and ISP8042 */
 812        uint32_t pf_bit;
 813        struct qla4_83xx_idc_information idc_info;
 814        struct addr_ctrl_blk *saved_acb;
 815        int notify_idc_comp;
 816        int notify_link_up_comp;
 817        int idc_extend_tmo;
 818        struct completion idc_comp;
 819        struct completion link_up_comp;
 820};
 821
 822struct ql4_task_data {
 823        struct scsi_qla_host *ha;
 824        uint8_t iocb_req_cnt;
 825        dma_addr_t data_dma;
 826        void *req_buffer;
 827        dma_addr_t req_dma;
 828        uint32_t req_len;
 829        void *resp_buffer;
 830        dma_addr_t resp_dma;
 831        uint32_t resp_len;
 832        struct iscsi_task *task;
 833        struct passthru_status sts;
 834        struct work_struct task_work;
 835};
 836
 837struct qla_endpoint {
 838        struct Scsi_Host *host;
 839        struct sockaddr_storage dst_addr;
 840};
 841
 842struct qla_conn {
 843        struct qla_endpoint *qla_ep;
 844};
 845
 846static inline int is_ipv4_enabled(struct scsi_qla_host *ha)
 847{
 848        return ((ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) != 0);
 849}
 850
 851static inline int is_ipv6_enabled(struct scsi_qla_host *ha)
 852{
 853        return ((ha->ip_config.ipv6_options &
 854                IPV6_OPT_IPV6_PROTOCOL_ENABLE) != 0);
 855}
 856
 857static inline int is_qla4010(struct scsi_qla_host *ha)
 858{
 859        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010;
 860}
 861
 862static inline int is_qla4022(struct scsi_qla_host *ha)
 863{
 864        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
 865}
 866
 867static inline int is_qla4032(struct scsi_qla_host *ha)
 868{
 869        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
 870}
 871
 872static inline int is_qla40XX(struct scsi_qla_host *ha)
 873{
 874        return is_qla4032(ha) || is_qla4022(ha) || is_qla4010(ha);
 875}
 876
 877static inline int is_qla8022(struct scsi_qla_host *ha)
 878{
 879        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
 880}
 881
 882static inline int is_qla8032(struct scsi_qla_host *ha)
 883{
 884        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324;
 885}
 886
 887static inline int is_qla8042(struct scsi_qla_host *ha)
 888{
 889        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042;
 890}
 891
 892static inline int is_qla80XX(struct scsi_qla_host *ha)
 893{
 894        return is_qla8022(ha) || is_qla8032(ha) || is_qla8042(ha);
 895}
 896
 897static inline int is_aer_supported(struct scsi_qla_host *ha)
 898{
 899        return ((ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022) ||
 900                (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324) ||
 901                (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042));
 902}
 903
 904static inline int adapter_up(struct scsi_qla_host *ha)
 905{
 906        return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
 907               (test_bit(AF_LINK_UP, &ha->flags) != 0) &&
 908               (!test_bit(AF_LOOPBACK, &ha->flags));
 909}
 910
 911static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost)
 912{
 913        return (struct scsi_qla_host *)iscsi_host_priv(shost);
 914}
 915
 916static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
 917{
 918        return (is_qla4010(ha) ?
 919                &ha->reg->u1.isp4010.nvram :
 920                &ha->reg->u1.isp4022.semaphore);
 921}
 922
 923static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
 924{
 925        return (is_qla4010(ha) ?
 926                &ha->reg->u1.isp4010.nvram :
 927                &ha->reg->u1.isp4022.nvram);
 928}
 929
 930static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
 931{
 932        return (is_qla4010(ha) ?
 933                &ha->reg->u2.isp4010.ext_hw_conf :
 934                &ha->reg->u2.isp4022.p0.ext_hw_conf);
 935}
 936
 937static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
 938{
 939        return (is_qla4010(ha) ?
 940                &ha->reg->u2.isp4010.port_status :
 941                &ha->reg->u2.isp4022.p0.port_status);
 942}
 943
 944static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
 945{
 946        return (is_qla4010(ha) ?
 947                &ha->reg->u2.isp4010.port_ctrl :
 948                &ha->reg->u2.isp4022.p0.port_ctrl);
 949}
 950
 951static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
 952{
 953        return (is_qla4010(ha) ?
 954                &ha->reg->u2.isp4010.port_err_status :
 955                &ha->reg->u2.isp4022.p0.port_err_status);
 956}
 957
 958static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
 959{
 960        return (is_qla4010(ha) ?
 961                &ha->reg->u2.isp4010.gp_out :
 962                &ha->reg->u2.isp4022.p0.gp_out);
 963}
 964
 965static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
 966{
 967        return (is_qla4010(ha) ?
 968                offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
 969                offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
 970}
 971
 972int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 973void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask);
 974int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 975
 976static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
 977{
 978        if (is_qla4010(a))
 979                return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
 980                                           QL4010_FLASH_SEM_BITS);
 981        else
 982                return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
 983                                           (QL4022_RESOURCE_BITS_BASE_CODE |
 984                                            (a->mac_index)) << 13);
 985}
 986
 987static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
 988{
 989        if (is_qla4010(a))
 990                ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
 991        else
 992                ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
 993}
 994
 995static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
 996{
 997        if (is_qla4010(a))
 998                return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
 999                                           QL4010_NVRAM_SEM_BITS);
1000        else
1001                return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
1002                                           (QL4022_RESOURCE_BITS_BASE_CODE |
1003                                            (a->mac_index)) << 10);
1004}
1005
1006static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
1007{
1008        if (is_qla4010(a))
1009                ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
1010        else
1011                ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
1012}
1013
1014static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
1015{
1016        if (is_qla4010(a))
1017                return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
1018                                       QL4010_DRVR_SEM_BITS);
1019        else
1020                return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
1021                                       (QL4022_RESOURCE_BITS_BASE_CODE |
1022                                        (a->mac_index)) << 1);
1023}
1024
1025static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
1026{
1027        if (is_qla4010(a))
1028                ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
1029        else
1030                ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
1031}
1032
1033static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
1034{
1035        return test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
1036               test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
1037               test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
1038               test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
1039               test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
1040               test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
1041
1042}
1043
1044static inline int qla4_8xxx_rd_direct(struct scsi_qla_host *ha,
1045                                      const uint32_t crb_reg)
1046{
1047        return ha->isp_ops->rd_reg_direct(ha, ha->reg_tbl[crb_reg]);
1048}
1049
1050static inline void qla4_8xxx_wr_direct(struct scsi_qla_host *ha,
1051                                       const uint32_t crb_reg,
1052                                       const uint32_t value)
1053{
1054        ha->isp_ops->wr_reg_direct(ha, ha->reg_tbl[crb_reg], value);
1055}
1056
1057/*---------------------------------------------------------------------------*/
1058
1059/* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
1060
1061#define INIT_ADAPTER    0
1062#define RESET_ADAPTER   1
1063
1064#define PRESERVE_DDB_LIST       0
1065#define REBUILD_DDB_LIST        1
1066
1067/* Defines for process_aen() */
1068#define PROCESS_ALL_AENS         0
1069#define FLUSH_DDB_CHANGED_AENS   1
1070
1071/* Defines for udev events */
1072#define QL4_UEVENT_CODE_FW_DUMP         0
1073
1074#endif  /*_QLA4XXX_H */
1075