linux/drivers/scsi/qla4xxx/ql4_def.h
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   1/*
   2 * QLogic iSCSI HBA Driver
   3 * Copyright (c)  2003-2012 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
  30#include <net/tcp.h>
  31#include <scsi/scsi.h>
  32#include <scsi/scsi_host.h>
  33#include <scsi/scsi_device.h>
  34#include <scsi/scsi_cmnd.h>
  35#include <scsi/scsi_transport.h>
  36#include <scsi/scsi_transport_iscsi.h>
  37#include <scsi/scsi_bsg_iscsi.h>
  38#include <scsi/scsi_netlink.h>
  39#include <scsi/libiscsi.h>
  40
  41#include "ql4_dbg.h"
  42#include "ql4_nx.h"
  43#include "ql4_fw.h"
  44#include "ql4_nvram.h"
  45#include "ql4_83xx.h"
  46
  47#ifndef PCI_DEVICE_ID_QLOGIC_ISP4010
  48#define PCI_DEVICE_ID_QLOGIC_ISP4010    0x4010
  49#endif
  50
  51#ifndef PCI_DEVICE_ID_QLOGIC_ISP4022
  52#define PCI_DEVICE_ID_QLOGIC_ISP4022    0x4022
  53#endif
  54
  55#ifndef PCI_DEVICE_ID_QLOGIC_ISP4032
  56#define PCI_DEVICE_ID_QLOGIC_ISP4032    0x4032
  57#endif
  58
  59#ifndef PCI_DEVICE_ID_QLOGIC_ISP8022
  60#define PCI_DEVICE_ID_QLOGIC_ISP8022    0x8022
  61#endif
  62
  63#ifndef PCI_DEVICE_ID_QLOGIC_ISP8324
  64#define PCI_DEVICE_ID_QLOGIC_ISP8324    0x8032
  65#endif
  66
  67#define ISP4XXX_PCI_FN_1        0x1
  68#define ISP4XXX_PCI_FN_2        0x3
  69
  70#define QLA_SUCCESS                     0
  71#define QLA_ERROR                       1
  72
  73/*
  74 * Data bit definitions
  75 */
  76#define BIT_0   0x1
  77#define BIT_1   0x2
  78#define BIT_2   0x4
  79#define BIT_3   0x8
  80#define BIT_4   0x10
  81#define BIT_5   0x20
  82#define BIT_6   0x40
  83#define BIT_7   0x80
  84#define BIT_8   0x100
  85#define BIT_9   0x200
  86#define BIT_10  0x400
  87#define BIT_11  0x800
  88#define BIT_12  0x1000
  89#define BIT_13  0x2000
  90#define BIT_14  0x4000
  91#define BIT_15  0x8000
  92#define BIT_16  0x10000
  93#define BIT_17  0x20000
  94#define BIT_18  0x40000
  95#define BIT_19  0x80000
  96#define BIT_20  0x100000
  97#define BIT_21  0x200000
  98#define BIT_22  0x400000
  99#define BIT_23  0x800000
 100#define BIT_24  0x1000000
 101#define BIT_25  0x2000000
 102#define BIT_26  0x4000000
 103#define BIT_27  0x8000000
 104#define BIT_28  0x10000000
 105#define BIT_29  0x20000000
 106#define BIT_30  0x40000000
 107#define BIT_31  0x80000000
 108
 109/**
 110 * Macros to help code, maintain, etc.
 111 **/
 112#define ql4_printk(level, ha, format, arg...) \
 113        dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
 114
 115
 116/*
 117 * Host adapter default definitions
 118 ***********************************/
 119#define MAX_HBAS                16
 120#define MAX_BUSES               1
 121#define MAX_TARGETS             MAX_DEV_DB_ENTRIES
 122#define MAX_LUNS                0xffff
 123#define MAX_AEN_ENTRIES         MAX_DEV_DB_ENTRIES
 124#define MAX_DDB_ENTRIES         MAX_DEV_DB_ENTRIES
 125#define MAX_PDU_ENTRIES         32
 126#define INVALID_ENTRY           0xFFFF
 127#define MAX_CMDS_TO_RISC        1024
 128#define MAX_SRBS                MAX_CMDS_TO_RISC
 129#define MBOX_AEN_REG_COUNT      8
 130#define MAX_INIT_RETRIES        5
 131
 132/*
 133 * Buffer sizes
 134 */
 135#define REQUEST_QUEUE_DEPTH             MAX_CMDS_TO_RISC
 136#define RESPONSE_QUEUE_DEPTH            64
 137#define QUEUE_SIZE                      64
 138#define DMA_BUFFER_SIZE                 512
 139#define IOCB_HIWAT_CUSHION              4
 140
 141/*
 142 * Misc
 143 */
 144#define MAC_ADDR_LEN                    6       /* in bytes */
 145#define IP_ADDR_LEN                     4       /* in bytes */
 146#define IPv6_ADDR_LEN                   16      /* IPv6 address size */
 147#define DRIVER_NAME                     "qla4xxx"
 148
 149#define MAX_LINKED_CMDS_PER_LUN         3
 150#define MAX_REQS_SERVICED_PER_INTR      1
 151
 152#define ISCSI_IPADDR_SIZE               4       /* IP address size */
 153#define ISCSI_ALIAS_SIZE                32      /* ISCSI Alias name size */
 154#define ISCSI_NAME_SIZE                 0xE0    /* ISCSI Name size */
 155
 156#define QL4_SESS_RECOVERY_TMO           120     /* iSCSI session */
 157                                                /* recovery timeout */
 158
 159#define LSDW(x) ((u32)((u64)(x)))
 160#define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
 161
 162#define DEV_DB_NON_PERSISTENT   0
 163#define DEV_DB_PERSISTENT       1
 164
 165#define COPY_ISID(dst_isid, src_isid) {                 \
 166        int i, j;                                       \
 167        for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;)  \
 168                dst_isid[i++] = src_isid[j--];          \
 169}
 170
 171#define SET_BITVAL(o, n, v) {   \
 172        if (o)                  \
 173                n |= v;         \
 174        else                    \
 175                n &= ~v;        \
 176}
 177
 178/*
 179 * Retry & Timeout Values
 180 */
 181#define MBOX_TOV                        60
 182#define SOFT_RESET_TOV                  30
 183#define RESET_INTR_TOV                  3
 184#define SEMAPHORE_TOV                   10
 185#define ADAPTER_INIT_TOV                30
 186#define ADAPTER_RESET_TOV               180
 187#define EXTEND_CMD_TOV                  60
 188#define WAIT_CMD_TOV                    30
 189#define EH_WAIT_CMD_TOV                 120
 190#define FIRMWARE_UP_TOV                 60
 191#define RESET_FIRMWARE_TOV              30
 192#define LOGOUT_TOV                      10
 193#define IOCB_TOV_MARGIN                 10
 194#define RELOGIN_TOV                     18
 195#define ISNS_DEREG_TOV                  5
 196#define HBA_ONLINE_TOV                  30
 197#define DISABLE_ACB_TOV                 30
 198#define IP_CONFIG_TOV                   30
 199#define LOGIN_TOV                       12
 200#define BOOT_LOGIN_RESP_TOV             60
 201
 202#define MAX_RESET_HA_RETRIES            2
 203#define FW_ALIVE_WAIT_TOV               3
 204
 205#define CMD_SP(Cmnd)                    ((Cmnd)->SCp.ptr)
 206
 207/*
 208 * SCSI Request Block structure  (srb)  that is placed
 209 * on cmd->SCp location of every I/O     [We have 22 bytes available]
 210 */
 211struct srb {
 212        struct list_head list;  /* (8)   */
 213        struct scsi_qla_host *ha;       /* HA the SP is queued on */
 214        struct ddb_entry *ddb;
 215        uint16_t flags;         /* (1) Status flags. */
 216
 217#define SRB_DMA_VALID           BIT_3   /* DMA Buffer mapped. */
 218#define SRB_GOT_SENSE           BIT_4   /* sense data received. */
 219        uint8_t state;          /* (1) Status flags. */
 220
 221#define SRB_NO_QUEUE_STATE       0      /* Request is in between states */
 222#define SRB_FREE_STATE           1
 223#define SRB_ACTIVE_STATE         3
 224#define SRB_ACTIVE_TIMEOUT_STATE 4
 225#define SRB_SUSPENDED_STATE      7      /* Request in suspended state */
 226
 227        struct scsi_cmnd *cmd;  /* (4) SCSI command block */
 228        dma_addr_t dma_handle;  /* (4) for unmap of single transfers */
 229        struct kref srb_ref;    /* reference count for this srb */
 230        uint8_t err_id;         /* error id */
 231#define SRB_ERR_PORT       1    /* Request failed because "port down" */
 232#define SRB_ERR_LOOP       2    /* Request failed because "loop down" */
 233#define SRB_ERR_DEVICE     3    /* Request failed because "device error" */
 234#define SRB_ERR_OTHER      4
 235
 236        uint16_t reserved;
 237        uint16_t iocb_tov;
 238        uint16_t iocb_cnt;      /* Number of used iocbs */
 239        uint16_t cc_stat;
 240
 241        /* Used for extended sense / status continuation */
 242        uint8_t *req_sense_ptr;
 243        uint16_t req_sense_len;
 244        uint16_t reserved2;
 245};
 246
 247/* Mailbox request block structure */
 248struct mrb {
 249        struct scsi_qla_host *ha;
 250        struct mbox_cmd_iocb *mbox;
 251        uint32_t mbox_cmd;
 252        uint16_t iocb_cnt;              /* Number of used iocbs */
 253        uint32_t pid;
 254};
 255
 256/*
 257 * Asynchronous Event Queue structure
 258 */
 259struct aen {
 260        uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
 261};
 262
 263struct ql4_aen_log {
 264        int count;
 265        struct aen entry[MAX_AEN_ENTRIES];
 266};
 267
 268/*
 269 * Device Database (DDB) structure
 270 */
 271struct ddb_entry {
 272        struct scsi_qla_host *ha;
 273        struct iscsi_cls_session *sess;
 274        struct iscsi_cls_conn *conn;
 275
 276        uint16_t fw_ddb_index;  /* DDB firmware index */
 277        uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
 278        uint16_t ddb_type;
 279#define FLASH_DDB 0x01
 280
 281        struct dev_db_entry fw_ddb_entry;
 282        int (*unblock_sess)(struct iscsi_cls_session *cls_session);
 283        int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 284                          struct ddb_entry *ddb_entry, uint32_t state);
 285
 286        /* Driver Re-login  */
 287        unsigned long flags;              /* DDB Flags */
 288        uint16_t default_relogin_timeout; /*  Max time to wait for
 289                                           *  relogin to complete */
 290        atomic_t retry_relogin_timer;     /* Min Time between relogins
 291                                           * (4000 only) */
 292        atomic_t relogin_timer;           /* Max Time to wait for
 293                                           * relogin to complete */
 294        atomic_t relogin_retry_count;     /* Num of times relogin has been
 295                                           * retried */
 296        uint32_t default_time2wait;       /* Default Min time between
 297                                           * relogins (+aens) */
 298        uint16_t chap_tbl_idx;
 299};
 300
 301struct qla_ddb_index {
 302        struct list_head list;
 303        uint16_t fw_ddb_idx;
 304        struct dev_db_entry fw_ddb;
 305        uint8_t flash_isid[6];
 306};
 307
 308#define DDB_IPADDR_LEN 64
 309
 310struct ql4_tuple_ddb {
 311        int port;
 312        int tpgt;
 313        char ip_addr[DDB_IPADDR_LEN];
 314        char iscsi_name[ISCSI_NAME_SIZE];
 315        uint16_t options;
 316#define DDB_OPT_IPV6 0x0e0e
 317#define DDB_OPT_IPV4 0x0f0f
 318        uint8_t isid[6];
 319};
 320
 321/*
 322 * DDB states.
 323 */
 324#define DDB_STATE_DEAD          0       /* We can no longer talk to
 325                                         * this device */
 326#define DDB_STATE_ONLINE        1       /* Device ready to accept
 327                                         * commands */
 328#define DDB_STATE_MISSING       2       /* Device logged off, trying
 329                                         * to re-login */
 330
 331/*
 332 * DDB flags.
 333 */
 334#define DF_RELOGIN              0       /* Relogin to device */
 335#define DF_BOOT_TGT             1       /* Boot target entry */
 336#define DF_ISNS_DISCOVERED      2       /* Device was discovered via iSNS */
 337#define DF_FO_MASKED            3
 338
 339enum qla4_work_type {
 340        QLA4_EVENT_AEN,
 341        QLA4_EVENT_PING_STATUS,
 342};
 343
 344struct qla4_work_evt {
 345        struct list_head list;
 346        enum qla4_work_type type;
 347        union {
 348                struct {
 349                        enum iscsi_host_event_code code;
 350                        uint32_t data_size;
 351                        uint8_t data[0];
 352                } aen;
 353                struct {
 354                        uint32_t status;
 355                        uint32_t pid;
 356                        uint32_t data_size;
 357                        uint8_t data[0];
 358                } ping;
 359        } u;
 360};
 361
 362struct ql82xx_hw_data {
 363        /* Offsets for flash/nvram access (set to ~0 if not used). */
 364        uint32_t flash_conf_off;
 365        uint32_t flash_data_off;
 366
 367        uint32_t fdt_wrt_disable;
 368        uint32_t fdt_erase_cmd;
 369        uint32_t fdt_block_size;
 370        uint32_t fdt_unprotect_sec_cmd;
 371        uint32_t fdt_protect_sec_cmd;
 372
 373        uint32_t flt_region_flt;
 374        uint32_t flt_region_fdt;
 375        uint32_t flt_region_boot;
 376        uint32_t flt_region_bootload;
 377        uint32_t flt_region_fw;
 378
 379        uint32_t flt_iscsi_param;
 380        uint32_t flt_region_chap;
 381        uint32_t flt_chap_size;
 382        uint32_t flt_region_ddb;
 383        uint32_t flt_ddb_size;
 384};
 385
 386struct qla4_8xxx_legacy_intr_set {
 387        uint32_t int_vec_bit;
 388        uint32_t tgt_status_reg;
 389        uint32_t tgt_mask_reg;
 390        uint32_t pci_int_reg;
 391};
 392
 393/* MSI-X Support */
 394
 395#define QLA_MSIX_DEFAULT        0x00
 396#define QLA_MSIX_RSP_Q          0x01
 397
 398#define QLA_MSIX_ENTRIES        2
 399#define QLA_MIDX_DEFAULT        0
 400#define QLA_MIDX_RSP_Q          1
 401
 402struct ql4_msix_entry {
 403        int have_irq;
 404        uint16_t msix_vector;
 405        uint16_t msix_entry;
 406};
 407
 408/*
 409 * ISP Operations
 410 */
 411struct isp_operations {
 412        int (*iospace_config) (struct scsi_qla_host *ha);
 413        void (*pci_config) (struct scsi_qla_host *);
 414        void (*disable_intrs) (struct scsi_qla_host *);
 415        void (*enable_intrs) (struct scsi_qla_host *);
 416        int (*start_firmware) (struct scsi_qla_host *);
 417        int (*restart_firmware) (struct scsi_qla_host *);
 418        irqreturn_t (*intr_handler) (int , void *);
 419        void (*interrupt_service_routine) (struct scsi_qla_host *, uint32_t);
 420        int (*need_reset) (struct scsi_qla_host *);
 421        int (*reset_chip) (struct scsi_qla_host *);
 422        int (*reset_firmware) (struct scsi_qla_host *);
 423        void (*queue_iocb) (struct scsi_qla_host *);
 424        void (*complete_iocb) (struct scsi_qla_host *);
 425        uint16_t (*rd_shdw_req_q_out) (struct scsi_qla_host *);
 426        uint16_t (*rd_shdw_rsp_q_in) (struct scsi_qla_host *);
 427        int (*get_sys_info) (struct scsi_qla_host *);
 428        uint32_t (*rd_reg_direct) (struct scsi_qla_host *, ulong);
 429        void (*wr_reg_direct) (struct scsi_qla_host *, ulong, uint32_t);
 430        int (*rd_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t *);
 431        int (*wr_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t);
 432        int (*idc_lock) (struct scsi_qla_host *);
 433        void (*idc_unlock) (struct scsi_qla_host *);
 434        void (*rom_lock_recovery) (struct scsi_qla_host *);
 435        void (*queue_mailbox_command) (struct scsi_qla_host *, uint32_t *, int);
 436        void (*process_mailbox_interrupt) (struct scsi_qla_host *, int);
 437};
 438
 439struct ql4_mdump_size_table {
 440        uint32_t size;
 441        uint32_t size_cmask_02;
 442        uint32_t size_cmask_04;
 443        uint32_t size_cmask_08;
 444        uint32_t size_cmask_10;
 445        uint32_t size_cmask_FF;
 446        uint32_t version;
 447};
 448
 449/*qla4xxx ipaddress configuration details */
 450struct ipaddress_config {
 451        uint16_t ipv4_options;
 452        uint16_t tcp_options;
 453        uint16_t ipv4_vlan_tag;
 454        uint8_t ipv4_addr_state;
 455        uint8_t ip_address[IP_ADDR_LEN];
 456        uint8_t subnet_mask[IP_ADDR_LEN];
 457        uint8_t gateway[IP_ADDR_LEN];
 458        uint32_t ipv6_options;
 459        uint32_t ipv6_addl_options;
 460        uint8_t ipv6_link_local_state;
 461        uint8_t ipv6_addr0_state;
 462        uint8_t ipv6_addr1_state;
 463        uint8_t ipv6_default_router_state;
 464        uint16_t ipv6_vlan_tag;
 465        struct in6_addr ipv6_link_local_addr;
 466        struct in6_addr ipv6_addr0;
 467        struct in6_addr ipv6_addr1;
 468        struct in6_addr ipv6_default_router_addr;
 469        uint16_t eth_mtu_size;
 470        uint16_t ipv4_port;
 471        uint16_t ipv6_port;
 472};
 473
 474#define QL4_CHAP_MAX_NAME_LEN 256
 475#define QL4_CHAP_MAX_SECRET_LEN 100
 476#define LOCAL_CHAP      0
 477#define BIDI_CHAP       1
 478
 479struct ql4_chap_format {
 480        u8  intr_chap_name[QL4_CHAP_MAX_NAME_LEN];
 481        u8  intr_secret[QL4_CHAP_MAX_SECRET_LEN];
 482        u8  target_chap_name[QL4_CHAP_MAX_NAME_LEN];
 483        u8  target_secret[QL4_CHAP_MAX_SECRET_LEN];
 484        u16 intr_chap_name_length;
 485        u16 intr_secret_length;
 486        u16 target_chap_name_length;
 487        u16 target_secret_length;
 488};
 489
 490struct ip_address_format {
 491        u8 ip_type;
 492        u8 ip_address[16];
 493};
 494
 495struct  ql4_conn_info {
 496        u16     dest_port;
 497        struct  ip_address_format dest_ipaddr;
 498        struct  ql4_chap_format chap;
 499};
 500
 501struct ql4_boot_session_info {
 502        u8      target_name[224];
 503        struct  ql4_conn_info conn_list[1];
 504};
 505
 506struct ql4_boot_tgt_info {
 507        struct ql4_boot_session_info boot_pri_sess;
 508        struct ql4_boot_session_info boot_sec_sess;
 509};
 510
 511/*
 512 * Linux Host Adapter structure
 513 */
 514struct scsi_qla_host {
 515        /* Linux adapter configuration data */
 516        unsigned long flags;
 517
 518#define AF_ONLINE                       0 /* 0x00000001 */
 519#define AF_INIT_DONE                    1 /* 0x00000002 */
 520#define AF_MBOX_COMMAND                 2 /* 0x00000004 */
 521#define AF_MBOX_COMMAND_DONE            3 /* 0x00000008 */
 522#define AF_ST_DISCOVERY_IN_PROGRESS     4 /* 0x00000010 */
 523#define AF_INTERRUPTS_ON                6 /* 0x00000040 */
 524#define AF_GET_CRASH_RECORD             7 /* 0x00000080 */
 525#define AF_LINK_UP                      8 /* 0x00000100 */
 526#define AF_LOOPBACK                     9 /* 0x00000200 */
 527#define AF_IRQ_ATTACHED                 10 /* 0x00000400 */
 528#define AF_DISABLE_ACB_COMPLETE         11 /* 0x00000800 */
 529#define AF_HA_REMOVAL                   12 /* 0x00001000 */
 530#define AF_INTx_ENABLED                 15 /* 0x00008000 */
 531#define AF_MSI_ENABLED                  16 /* 0x00010000 */
 532#define AF_MSIX_ENABLED                 17 /* 0x00020000 */
 533#define AF_MBOX_COMMAND_NOPOLL          18 /* 0x00040000 */
 534#define AF_FW_RECOVERY                  19 /* 0x00080000 */
 535#define AF_EEH_BUSY                     20 /* 0x00100000 */
 536#define AF_PCI_CHANNEL_IO_PERM_FAILURE  21 /* 0x00200000 */
 537#define AF_BUILD_DDB_LIST               22 /* 0x00400000 */
 538#define AF_82XX_FW_DUMPED               24 /* 0x01000000 */
 539#define AF_8XXX_RST_OWNER               25 /* 0x02000000 */
 540#define AF_82XX_DUMP_READING            26 /* 0x04000000 */
 541#define AF_83XX_NO_FW_DUMP              27 /* 0x08000000 */
 542#define AF_83XX_IOCB_INTR_ON            28 /* 0x10000000 */
 543#define AF_83XX_MBOX_INTR_ON            29 /* 0x20000000 */
 544
 545        unsigned long dpc_flags;
 546
 547#define DPC_RESET_HA                    1 /* 0x00000002 */
 548#define DPC_RETRY_RESET_HA              2 /* 0x00000004 */
 549#define DPC_RELOGIN_DEVICE              3 /* 0x00000008 */
 550#define DPC_RESET_HA_FW_CONTEXT         4 /* 0x00000010 */
 551#define DPC_RESET_HA_INTR               5 /* 0x00000020 */
 552#define DPC_ISNS_RESTART                7 /* 0x00000080 */
 553#define DPC_AEN                         9 /* 0x00000200 */
 554#define DPC_GET_DHCP_IP_ADDR            15 /* 0x00008000 */
 555#define DPC_LINK_CHANGED                18 /* 0x00040000 */
 556#define DPC_RESET_ACTIVE                20 /* 0x00040000 */
 557#define DPC_HA_UNRECOVERABLE            21 /* 0x00080000 ISP-82xx only*/
 558#define DPC_HA_NEED_QUIESCENT           22 /* 0x00100000 ISP-82xx only*/
 559#define DPC_POST_IDC_ACK                23 /* 0x00200000 */
 560
 561        struct Scsi_Host *host; /* pointer to host data */
 562        uint32_t tot_ddbs;
 563
 564        uint16_t iocb_cnt;
 565        uint16_t iocb_hiwat;
 566
 567        /* SRB cache. */
 568#define SRB_MIN_REQ     128
 569        mempool_t *srb_mempool;
 570
 571        /* pci information */
 572        struct pci_dev *pdev;
 573
 574        struct isp_reg __iomem *reg; /* Base I/O address */
 575        unsigned long pio_address;
 576        unsigned long pio_length;
 577#define MIN_IOBASE_LEN          0x100
 578
 579        uint16_t req_q_count;
 580
 581        unsigned long host_no;
 582
 583        /* NVRAM registers */
 584        struct eeprom_data *nvram;
 585        spinlock_t hardware_lock ____cacheline_aligned;
 586        uint32_t eeprom_cmd_data;
 587
 588        /* Counters for general statistics */
 589        uint64_t isr_count;
 590        uint64_t adapter_error_count;
 591        uint64_t device_error_count;
 592        uint64_t total_io_count;
 593        uint64_t total_mbytes_xferred;
 594        uint64_t link_failure_count;
 595        uint64_t invalid_crc_count;
 596        uint32_t bytes_xfered;
 597        uint32_t spurious_int_count;
 598        uint32_t aborted_io_count;
 599        uint32_t io_timeout_count;
 600        uint32_t mailbox_timeout_count;
 601        uint32_t seconds_since_last_intr;
 602        uint32_t seconds_since_last_heartbeat;
 603        uint32_t mac_index;
 604
 605        /* Info Needed for Management App */
 606        /* --- From GetFwVersion --- */
 607        uint32_t firmware_version[2];
 608        uint32_t patch_number;
 609        uint32_t build_number;
 610        uint32_t board_id;
 611
 612        /* --- From Init_FW --- */
 613        /* init_cb_t *init_cb; */
 614        uint16_t firmware_options;
 615        uint8_t alias[32];
 616        uint8_t name_string[256];
 617        uint8_t heartbeat_interval;
 618
 619        /* --- From FlashSysInfo --- */
 620        uint8_t my_mac[MAC_ADDR_LEN];
 621        uint8_t serial_number[16];
 622        uint16_t port_num;
 623        /* --- From GetFwState --- */
 624        uint32_t firmware_state;
 625        uint32_t addl_fw_state;
 626
 627        /* Linux kernel thread */
 628        struct workqueue_struct *dpc_thread;
 629        struct work_struct dpc_work;
 630
 631        /* Linux timer thread */
 632        struct timer_list timer;
 633        uint32_t timer_active;
 634
 635        /* Recovery Timers */
 636        atomic_t check_relogin_timeouts;
 637        uint32_t retry_reset_ha_cnt;
 638        uint32_t isp_reset_timer;       /* reset test timer */
 639        uint32_t nic_reset_timer;       /* simulated nic reset test timer */
 640        int eh_start;
 641        struct list_head free_srb_q;
 642        uint16_t free_srb_q_count;
 643        uint16_t num_srbs_allocated;
 644
 645        /* DMA Memory Block */
 646        void *queues;
 647        dma_addr_t queues_dma;
 648        unsigned long queues_len;
 649
 650#define MEM_ALIGN_VALUE \
 651            ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \
 652             sizeof(struct queue_entry))
 653        /* request and response queue variables */
 654        dma_addr_t request_dma;
 655        struct queue_entry *request_ring;
 656        struct queue_entry *request_ptr;
 657        dma_addr_t response_dma;
 658        struct queue_entry *response_ring;
 659        struct queue_entry *response_ptr;
 660        dma_addr_t shadow_regs_dma;
 661        struct shadow_regs *shadow_regs;
 662        uint16_t request_in;    /* Current indexes. */
 663        uint16_t request_out;
 664        uint16_t response_in;
 665        uint16_t response_out;
 666
 667        /* aen queue variables */
 668        uint16_t aen_q_count;   /* Number of available aen_q entries */
 669        uint16_t aen_in;        /* Current indexes */
 670        uint16_t aen_out;
 671        struct aen aen_q[MAX_AEN_ENTRIES];
 672
 673        struct ql4_aen_log aen_log;/* tracks all aens */
 674
 675        /* This mutex protects several threads to do mailbox commands
 676         * concurrently.
 677         */
 678        struct mutex  mbox_sem;
 679
 680        /* temporary mailbox status registers */
 681        volatile uint8_t mbox_status_count;
 682        volatile uint32_t mbox_status[MBOX_REG_COUNT];
 683
 684        /* FW ddb index map */
 685        struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
 686
 687        /* Saved srb for status continuation entry processing */
 688        struct srb *status_srb;
 689
 690        uint8_t acb_version;
 691
 692        /* qla82xx specific fields */
 693        struct device_reg_82xx  __iomem *qla4_82xx_reg; /* Base I/O address */
 694        unsigned long nx_pcibase;       /* Base I/O address */
 695        uint8_t *nx_db_rd_ptr;          /* Doorbell read pointer */
 696        unsigned long nx_db_wr_ptr;     /* Door bell write pointer */
 697        unsigned long first_page_group_start;
 698        unsigned long first_page_group_end;
 699
 700        uint32_t crb_win;
 701        uint32_t curr_window;
 702        uint32_t ddr_mn_window;
 703        unsigned long mn_win_crb;
 704        unsigned long ms_win_crb;
 705        int qdr_sn_window;
 706        rwlock_t hw_lock;
 707        uint16_t func_num;
 708        int link_width;
 709
 710        struct qla4_8xxx_legacy_intr_set nx_legacy_intr;
 711        u32 nx_crb_mask;
 712
 713        uint8_t revision_id;
 714        uint32_t fw_heartbeat_counter;
 715
 716        struct isp_operations *isp_ops;
 717        struct ql82xx_hw_data hw;
 718
 719        struct ql4_msix_entry msix_entries[QLA_MSIX_ENTRIES];
 720
 721        uint32_t nx_dev_init_timeout;
 722        uint32_t nx_reset_timeout;
 723        void *fw_dump;
 724        uint32_t fw_dump_size;
 725        uint32_t fw_dump_capture_mask;
 726        void *fw_dump_tmplt_hdr;
 727        uint32_t fw_dump_tmplt_size;
 728
 729        struct completion mbx_intr_comp;
 730
 731        struct ipaddress_config ip_config;
 732        struct iscsi_iface *iface_ipv4;
 733        struct iscsi_iface *iface_ipv6_0;
 734        struct iscsi_iface *iface_ipv6_1;
 735
 736        /* --- From About Firmware --- */
 737        uint16_t iscsi_major;
 738        uint16_t iscsi_minor;
 739        uint16_t bootload_major;
 740        uint16_t bootload_minor;
 741        uint16_t bootload_patch;
 742        uint16_t bootload_build;
 743        uint16_t def_timeout; /* Default login timeout */
 744
 745        uint32_t flash_state;
 746#define QLFLASH_WAITING         0
 747#define QLFLASH_READING         1
 748#define QLFLASH_WRITING         2
 749        struct dma_pool *chap_dma_pool;
 750        uint8_t *chap_list; /* CHAP table cache */
 751        struct mutex  chap_sem;
 752
 753#define CHAP_DMA_BLOCK_SIZE    512
 754        struct workqueue_struct *task_wq;
 755        unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
 756#define SYSFS_FLAG_FW_SEL_BOOT 2
 757        struct iscsi_boot_kset *boot_kset;
 758        struct ql4_boot_tgt_info boot_tgt;
 759        uint16_t phy_port_num;
 760        uint16_t phy_port_cnt;
 761        uint16_t iscsi_pci_func_cnt;
 762        uint8_t model_name[16];
 763        struct completion disable_acb_comp;
 764        struct dma_pool *fw_ddb_dma_pool;
 765#define DDB_DMA_BLOCK_SIZE 512
 766        uint16_t pri_ddb_idx;
 767        uint16_t sec_ddb_idx;
 768        int is_reset;
 769        uint16_t temperature;
 770
 771        /* event work list */
 772        struct list_head work_list;
 773        spinlock_t work_lock;
 774
 775        /* mbox iocb */
 776#define MAX_MRB         128
 777        struct mrb *active_mrb_array[MAX_MRB];
 778        uint32_t mrb_index;
 779
 780        uint32_t *reg_tbl;
 781        struct qla4_83xx_reset_template reset_tmplt;
 782        struct device_reg_83xx  __iomem *qla4_83xx_reg; /* Base I/O address
 783                                                           for ISP8324 */
 784        uint32_t pf_bit;
 785        struct qla4_83xx_idc_information idc_info;
 786};
 787
 788struct ql4_task_data {
 789        struct scsi_qla_host *ha;
 790        uint8_t iocb_req_cnt;
 791        dma_addr_t data_dma;
 792        void *req_buffer;
 793        dma_addr_t req_dma;
 794        uint32_t req_len;
 795        void *resp_buffer;
 796        dma_addr_t resp_dma;
 797        uint32_t resp_len;
 798        struct iscsi_task *task;
 799        struct passthru_status sts;
 800        struct work_struct task_work;
 801};
 802
 803struct qla_endpoint {
 804        struct Scsi_Host *host;
 805        struct sockaddr_storage dst_addr;
 806};
 807
 808struct qla_conn {
 809        struct qla_endpoint *qla_ep;
 810};
 811
 812static inline int is_ipv4_enabled(struct scsi_qla_host *ha)
 813{
 814        return ((ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) != 0);
 815}
 816
 817static inline int is_ipv6_enabled(struct scsi_qla_host *ha)
 818{
 819        return ((ha->ip_config.ipv6_options &
 820                IPV6_OPT_IPV6_PROTOCOL_ENABLE) != 0);
 821}
 822
 823static inline int is_qla4010(struct scsi_qla_host *ha)
 824{
 825        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010;
 826}
 827
 828static inline int is_qla4022(struct scsi_qla_host *ha)
 829{
 830        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
 831}
 832
 833static inline int is_qla4032(struct scsi_qla_host *ha)
 834{
 835        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
 836}
 837
 838static inline int is_qla40XX(struct scsi_qla_host *ha)
 839{
 840        return is_qla4032(ha) || is_qla4022(ha) || is_qla4010(ha);
 841}
 842
 843static inline int is_qla8022(struct scsi_qla_host *ha)
 844{
 845        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
 846}
 847
 848static inline int is_qla8032(struct scsi_qla_host *ha)
 849{
 850        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324;
 851}
 852
 853static inline int is_qla80XX(struct scsi_qla_host *ha)
 854{
 855        return is_qla8022(ha) || is_qla8032(ha);
 856}
 857
 858static inline int is_aer_supported(struct scsi_qla_host *ha)
 859{
 860        return ((ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022) ||
 861                (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324));
 862}
 863
 864static inline int adapter_up(struct scsi_qla_host *ha)
 865{
 866        return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
 867               (test_bit(AF_LINK_UP, &ha->flags) != 0) &&
 868               (!test_bit(AF_LOOPBACK, &ha->flags));
 869}
 870
 871static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost)
 872{
 873        return (struct scsi_qla_host *)iscsi_host_priv(shost);
 874}
 875
 876static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
 877{
 878        return (is_qla4010(ha) ?
 879                &ha->reg->u1.isp4010.nvram :
 880                &ha->reg->u1.isp4022.semaphore);
 881}
 882
 883static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
 884{
 885        return (is_qla4010(ha) ?
 886                &ha->reg->u1.isp4010.nvram :
 887                &ha->reg->u1.isp4022.nvram);
 888}
 889
 890static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
 891{
 892        return (is_qla4010(ha) ?
 893                &ha->reg->u2.isp4010.ext_hw_conf :
 894                &ha->reg->u2.isp4022.p0.ext_hw_conf);
 895}
 896
 897static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
 898{
 899        return (is_qla4010(ha) ?
 900                &ha->reg->u2.isp4010.port_status :
 901                &ha->reg->u2.isp4022.p0.port_status);
 902}
 903
 904static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
 905{
 906        return (is_qla4010(ha) ?
 907                &ha->reg->u2.isp4010.port_ctrl :
 908                &ha->reg->u2.isp4022.p0.port_ctrl);
 909}
 910
 911static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
 912{
 913        return (is_qla4010(ha) ?
 914                &ha->reg->u2.isp4010.port_err_status :
 915                &ha->reg->u2.isp4022.p0.port_err_status);
 916}
 917
 918static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
 919{
 920        return (is_qla4010(ha) ?
 921                &ha->reg->u2.isp4010.gp_out :
 922                &ha->reg->u2.isp4022.p0.gp_out);
 923}
 924
 925static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
 926{
 927        return (is_qla4010(ha) ?
 928                offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
 929                offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
 930}
 931
 932int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 933void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask);
 934int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 935
 936static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
 937{
 938        if (is_qla4010(a))
 939                return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
 940                                           QL4010_FLASH_SEM_BITS);
 941        else
 942                return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
 943                                           (QL4022_RESOURCE_BITS_BASE_CODE |
 944                                            (a->mac_index)) << 13);
 945}
 946
 947static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
 948{
 949        if (is_qla4010(a))
 950                ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
 951        else
 952                ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
 953}
 954
 955static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
 956{
 957        if (is_qla4010(a))
 958                return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
 959                                           QL4010_NVRAM_SEM_BITS);
 960        else
 961                return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
 962                                           (QL4022_RESOURCE_BITS_BASE_CODE |
 963                                            (a->mac_index)) << 10);
 964}
 965
 966static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
 967{
 968        if (is_qla4010(a))
 969                ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
 970        else
 971                ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
 972}
 973
 974static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
 975{
 976        if (is_qla4010(a))
 977                return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
 978                                       QL4010_DRVR_SEM_BITS);
 979        else
 980                return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
 981                                       (QL4022_RESOURCE_BITS_BASE_CODE |
 982                                        (a->mac_index)) << 1);
 983}
 984
 985static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
 986{
 987        if (is_qla4010(a))
 988                ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
 989        else
 990                ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
 991}
 992
 993static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
 994{
 995        return test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
 996               test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
 997               test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
 998               test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
 999               test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
1000               test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
1001
1002}
1003
1004static inline int qla4_8xxx_rd_direct(struct scsi_qla_host *ha,
1005                                      const uint32_t crb_reg)
1006{
1007        return ha->isp_ops->rd_reg_direct(ha, ha->reg_tbl[crb_reg]);
1008}
1009
1010static inline void qla4_8xxx_wr_direct(struct scsi_qla_host *ha,
1011                                       const uint32_t crb_reg,
1012                                       const uint32_t value)
1013{
1014        ha->isp_ops->wr_reg_direct(ha, ha->reg_tbl[crb_reg], value);
1015}
1016
1017/*---------------------------------------------------------------------------*/
1018
1019/* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
1020
1021#define INIT_ADAPTER    0
1022#define RESET_ADAPTER   1
1023
1024#define PRESERVE_DDB_LIST       0
1025#define REBUILD_DDB_LIST        1
1026
1027/* Defines for process_aen() */
1028#define PROCESS_ALL_AENS         0
1029#define FLUSH_DDB_CHANGED_AENS   1
1030
1031/* Defines for udev events */
1032#define QL4_UEVENT_CODE_FW_DUMP         0
1033
1034#endif  /*_QLA4XXX_H */
1035