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
  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#ifndef PCI_DEVICE_ID_QLOGIC_ISP8042
  68#define PCI_DEVICE_ID_QLOGIC_ISP8042    0x8042
  69#endif
  70
  71#define ISP4XXX_PCI_FN_1        0x1
  72#define ISP4XXX_PCI_FN_2        0x3
  73
  74#define QLA_SUCCESS                     0
  75#define QLA_ERROR                       1
  76#define STATUS(status)          status == QLA_ERROR ? "FAILED" : "SUCCEEDED"
  77
  78/*
  79 * Data bit definitions
  80 */
  81#define BIT_0   0x1
  82#define BIT_1   0x2
  83#define BIT_2   0x4
  84#define BIT_3   0x8
  85#define BIT_4   0x10
  86#define BIT_5   0x20
  87#define BIT_6   0x40
  88#define BIT_7   0x80
  89#define BIT_8   0x100
  90#define BIT_9   0x200
  91#define BIT_10  0x400
  92#define BIT_11  0x800
  93#define BIT_12  0x1000
  94#define BIT_13  0x2000
  95#define BIT_14  0x4000
  96#define BIT_15  0x8000
  97#define BIT_16  0x10000
  98#define BIT_17  0x20000
  99#define BIT_18  0x40000
 100#define BIT_19  0x80000
 101#define BIT_20  0x100000
 102#define BIT_21  0x200000
 103#define BIT_22  0x400000
 104#define BIT_23  0x800000
 105#define BIT_24  0x1000000
 106#define BIT_25  0x2000000
 107#define BIT_26  0x4000000
 108#define BIT_27  0x8000000
 109#define BIT_28  0x10000000
 110#define BIT_29  0x20000000
 111#define BIT_30  0x40000000
 112#define BIT_31  0x80000000
 113
 114/**
 115 * Macros to help code, maintain, etc.
 116 **/
 117#define ql4_printk(level, ha, format, arg...) \
 118        dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
 119
 120
 121/*
 122 * Host adapter default definitions
 123 ***********************************/
 124#define MAX_HBAS                16
 125#define MAX_BUSES               1
 126#define MAX_TARGETS             MAX_DEV_DB_ENTRIES
 127#define MAX_LUNS                0xffff
 128#define MAX_AEN_ENTRIES         MAX_DEV_DB_ENTRIES
 129#define MAX_DDB_ENTRIES         MAX_DEV_DB_ENTRIES
 130#define MAX_PDU_ENTRIES         32
 131#define INVALID_ENTRY           0xFFFF
 132#define MAX_CMDS_TO_RISC        1024
 133#define MAX_SRBS                MAX_CMDS_TO_RISC
 134#define MBOX_AEN_REG_COUNT      8
 135#define MAX_INIT_RETRIES        5
 136
 137/*
 138 * Buffer sizes
 139 */
 140#define REQUEST_QUEUE_DEPTH             MAX_CMDS_TO_RISC
 141#define RESPONSE_QUEUE_DEPTH            64
 142#define QUEUE_SIZE                      64
 143#define DMA_BUFFER_SIZE                 512
 144#define IOCB_HIWAT_CUSHION              4
 145
 146/*
 147 * Misc
 148 */
 149#define MAC_ADDR_LEN                    6       /* in bytes */
 150#define IP_ADDR_LEN                     4       /* in bytes */
 151#define IPv6_ADDR_LEN                   16      /* IPv6 address size */
 152#define DRIVER_NAME                     "qla4xxx"
 153
 154#define MAX_LINKED_CMDS_PER_LUN         3
 155#define MAX_REQS_SERVICED_PER_INTR      1
 156
 157#define ISCSI_IPADDR_SIZE               4       /* IP address size */
 158#define ISCSI_ALIAS_SIZE                32      /* ISCSI Alias name size */
 159#define ISCSI_NAME_SIZE                 0xE0    /* ISCSI Name size */
 160
 161#define QL4_SESS_RECOVERY_TMO           120     /* iSCSI session */
 162                                                /* recovery timeout */
 163
 164#define LSDW(x) ((u32)((u64)(x)))
 165#define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
 166
 167#define DEV_DB_NON_PERSISTENT   0
 168#define DEV_DB_PERSISTENT       1
 169
 170#define QL4_ISP_REG_DISCONNECT 0xffffffffU
 171
 172#define COPY_ISID(dst_isid, src_isid) {                 \
 173        int i, j;                                       \
 174        for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;)  \
 175                dst_isid[i++] = src_isid[j--];          \
 176}
 177
 178#define SET_BITVAL(o, n, v) {   \
 179        if (o)                  \
 180                n |= v;         \
 181        else                    \
 182                n &= ~v;        \
 183}
 184
 185#define OP_STATE(o, f, p) {                     \
 186        p = (o & f) ? "enable" : "disable";     \
 187}
 188
 189/*
 190 * Retry & Timeout Values
 191 */
 192#define MBOX_TOV                        60
 193#define SOFT_RESET_TOV                  30
 194#define RESET_INTR_TOV                  3
 195#define SEMAPHORE_TOV                   10
 196#define ADAPTER_INIT_TOV                30
 197#define ADAPTER_RESET_TOV               180
 198#define EXTEND_CMD_TOV                  60
 199#define WAIT_CMD_TOV                    5
 200#define EH_WAIT_CMD_TOV                 120
 201#define FIRMWARE_UP_TOV                 60
 202#define RESET_FIRMWARE_TOV              30
 203#define LOGOUT_TOV                      10
 204#define IOCB_TOV_MARGIN                 10
 205#define RELOGIN_TOV                     18
 206#define ISNS_DEREG_TOV                  5
 207#define HBA_ONLINE_TOV                  30
 208#define DISABLE_ACB_TOV                 30
 209#define IP_CONFIG_TOV                   30
 210#define LOGIN_TOV                       12
 211#define BOOT_LOGIN_RESP_TOV             60
 212
 213#define MAX_RESET_HA_RETRIES            2
 214#define FW_ALIVE_WAIT_TOV               3
 215#define IDC_EXTEND_TOV                  8
 216#define IDC_COMP_TOV                    5
 217#define LINK_UP_COMP_TOV                30
 218
 219#define CMD_SP(Cmnd)                    ((Cmnd)->SCp.ptr)
 220
 221/*
 222 * SCSI Request Block structure  (srb)  that is placed
 223 * on cmd->SCp location of every I/O     [We have 22 bytes available]
 224 */
 225struct srb {
 226        struct list_head list;  /* (8)   */
 227        struct scsi_qla_host *ha;       /* HA the SP is queued on */
 228        struct ddb_entry *ddb;
 229        uint16_t flags;         /* (1) Status flags. */
 230
 231#define SRB_DMA_VALID           BIT_3   /* DMA Buffer mapped. */
 232#define SRB_GOT_SENSE           BIT_4   /* sense data received. */
 233        uint8_t state;          /* (1) Status flags. */
 234
 235#define SRB_NO_QUEUE_STATE       0      /* Request is in between states */
 236#define SRB_FREE_STATE           1
 237#define SRB_ACTIVE_STATE         3
 238#define SRB_ACTIVE_TIMEOUT_STATE 4
 239#define SRB_SUSPENDED_STATE      7      /* Request in suspended state */
 240
 241        struct scsi_cmnd *cmd;  /* (4) SCSI command block */
 242        dma_addr_t dma_handle;  /* (4) for unmap of single transfers */
 243        struct kref srb_ref;    /* reference count for this srb */
 244        uint8_t err_id;         /* error id */
 245#define SRB_ERR_PORT       1    /* Request failed because "port down" */
 246#define SRB_ERR_LOOP       2    /* Request failed because "loop down" */
 247#define SRB_ERR_DEVICE     3    /* Request failed because "device error" */
 248#define SRB_ERR_OTHER      4
 249
 250        uint16_t reserved;
 251        uint16_t iocb_tov;
 252        uint16_t iocb_cnt;      /* Number of used iocbs */
 253        uint16_t cc_stat;
 254
 255        /* Used for extended sense / status continuation */
 256        uint8_t *req_sense_ptr;
 257        uint16_t req_sense_len;
 258        uint16_t reserved2;
 259};
 260
 261/* Mailbox request block structure */
 262struct mrb {
 263        struct scsi_qla_host *ha;
 264        struct mbox_cmd_iocb *mbox;
 265        uint32_t mbox_cmd;
 266        uint16_t iocb_cnt;              /* Number of used iocbs */
 267        uint32_t pid;
 268};
 269
 270/*
 271 * Asynchronous Event Queue structure
 272 */
 273struct aen {
 274        uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
 275};
 276
 277struct ql4_aen_log {
 278        int count;
 279        struct aen entry[MAX_AEN_ENTRIES];
 280};
 281
 282/*
 283 * Device Database (DDB) structure
 284 */
 285struct ddb_entry {
 286        struct scsi_qla_host *ha;
 287        struct iscsi_cls_session *sess;
 288        struct iscsi_cls_conn *conn;
 289
 290        uint16_t fw_ddb_index;  /* DDB firmware index */
 291        uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
 292        uint16_t ddb_type;
 293#define FLASH_DDB 0x01
 294
 295        struct dev_db_entry fw_ddb_entry;
 296        int (*unblock_sess)(struct iscsi_cls_session *cls_session);
 297        int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
 298                          struct ddb_entry *ddb_entry, uint32_t state);
 299
 300        /* Driver Re-login  */
 301        unsigned long flags;              /* DDB Flags */
 302#define DDB_CONN_CLOSE_FAILURE          0 /* 0x00000001 */
 303
 304        uint16_t default_relogin_timeout; /*  Max time to wait for
 305                                           *  relogin to complete */
 306        atomic_t retry_relogin_timer;     /* Min Time between relogins
 307                                           * (4000 only) */
 308        atomic_t relogin_timer;           /* Max Time to wait for
 309                                           * relogin to complete */
 310        atomic_t relogin_retry_count;     /* Num of times relogin has been
 311                                           * retried */
 312        uint32_t default_time2wait;       /* Default Min time between
 313                                           * relogins (+aens) */
 314        uint16_t chap_tbl_idx;
 315};
 316
 317struct qla_ddb_index {
 318        struct list_head list;
 319        uint16_t fw_ddb_idx;
 320        uint16_t flash_ddb_idx;
 321        struct dev_db_entry fw_ddb;
 322        uint8_t flash_isid[6];
 323};
 324
 325#define DDB_IPADDR_LEN 64
 326
 327struct ql4_tuple_ddb {
 328        int port;
 329        int tpgt;
 330        char ip_addr[DDB_IPADDR_LEN];
 331        char iscsi_name[ISCSI_NAME_SIZE];
 332        uint16_t options;
 333#define DDB_OPT_IPV6 0x0e0e
 334#define DDB_OPT_IPV4 0x0f0f
 335        uint8_t isid[6];
 336};
 337
 338/*
 339 * DDB states.
 340 */
 341#define DDB_STATE_DEAD          0       /* We can no longer talk to
 342                                         * this device */
 343#define DDB_STATE_ONLINE        1       /* Device ready to accept
 344                                         * commands */
 345#define DDB_STATE_MISSING       2       /* Device logged off, trying
 346                                         * to re-login */
 347
 348/*
 349 * DDB flags.
 350 */
 351#define DF_RELOGIN              0       /* Relogin to device */
 352#define DF_BOOT_TGT             1       /* Boot target entry */
 353#define DF_ISNS_DISCOVERED      2       /* Device was discovered via iSNS */
 354#define DF_FO_MASKED            3
 355#define DF_DISABLE_RELOGIN              4       /* Disable relogin to device */
 356
 357enum qla4_work_type {
 358        QLA4_EVENT_AEN,
 359        QLA4_EVENT_PING_STATUS,
 360};
 361
 362struct qla4_work_evt {
 363        struct list_head list;
 364        enum qla4_work_type type;
 365        union {
 366                struct {
 367                        enum iscsi_host_event_code code;
 368                        uint32_t data_size;
 369                        uint8_t data[0];
 370                } aen;
 371                struct {
 372                        uint32_t status;
 373                        uint32_t pid;
 374                        uint32_t data_size;
 375                        uint8_t data[0];
 376                } ping;
 377        } u;
 378};
 379
 380struct ql82xx_hw_data {
 381        /* Offsets for flash/nvram access (set to ~0 if not used). */
 382        uint32_t flash_conf_off;
 383        uint32_t flash_data_off;
 384
 385        uint32_t fdt_wrt_disable;
 386        uint32_t fdt_erase_cmd;
 387        uint32_t fdt_block_size;
 388        uint32_t fdt_unprotect_sec_cmd;
 389        uint32_t fdt_protect_sec_cmd;
 390
 391        uint32_t flt_region_flt;
 392        uint32_t flt_region_fdt;
 393        uint32_t flt_region_boot;
 394        uint32_t flt_region_bootload;
 395        uint32_t flt_region_fw;
 396
 397        uint32_t flt_iscsi_param;
 398        uint32_t flt_region_chap;
 399        uint32_t flt_chap_size;
 400        uint32_t flt_region_ddb;
 401        uint32_t flt_ddb_size;
 402};
 403
 404struct qla4_8xxx_legacy_intr_set {
 405        uint32_t int_vec_bit;
 406        uint32_t tgt_status_reg;
 407        uint32_t tgt_mask_reg;
 408        uint32_t pci_int_reg;
 409};
 410
 411/* MSI-X Support */
 412
 413#define QLA_MSIX_DEFAULT        0x00
 414#define QLA_MSIX_RSP_Q          0x01
 415
 416#define QLA_MSIX_ENTRIES        2
 417#define QLA_MIDX_DEFAULT        0
 418#define QLA_MIDX_RSP_Q          1
 419
 420struct ql4_msix_entry {
 421        int have_irq;
 422        uint16_t msix_vector;
 423        uint16_t msix_entry;
 424};
 425
 426/*
 427 * ISP Operations
 428 */
 429struct isp_operations {
 430        int (*iospace_config) (struct scsi_qla_host *ha);
 431        void (*pci_config) (struct scsi_qla_host *);
 432        void (*disable_intrs) (struct scsi_qla_host *);
 433        void (*enable_intrs) (struct scsi_qla_host *);
 434        int (*start_firmware) (struct scsi_qla_host *);
 435        int (*restart_firmware) (struct scsi_qla_host *);
 436        irqreturn_t (*intr_handler) (int , void *);
 437        void (*interrupt_service_routine) (struct scsi_qla_host *, uint32_t);
 438        int (*need_reset) (struct scsi_qla_host *);
 439        int (*reset_chip) (struct scsi_qla_host *);
 440        int (*reset_firmware) (struct scsi_qla_host *);
 441        void (*queue_iocb) (struct scsi_qla_host *);
 442        void (*complete_iocb) (struct scsi_qla_host *);
 443        uint16_t (*rd_shdw_req_q_out) (struct scsi_qla_host *);
 444        uint16_t (*rd_shdw_rsp_q_in) (struct scsi_qla_host *);
 445        int (*get_sys_info) (struct scsi_qla_host *);
 446        uint32_t (*rd_reg_direct) (struct scsi_qla_host *, ulong);
 447        void (*wr_reg_direct) (struct scsi_qla_host *, ulong, uint32_t);
 448        int (*rd_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t *);
 449        int (*wr_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t);
 450        int (*idc_lock) (struct scsi_qla_host *);
 451        void (*idc_unlock) (struct scsi_qla_host *);
 452        void (*rom_lock_recovery) (struct scsi_qla_host *);
 453        void (*queue_mailbox_command) (struct scsi_qla_host *, uint32_t *, int);
 454        void (*process_mailbox_interrupt) (struct scsi_qla_host *, int);
 455};
 456
 457struct ql4_mdump_size_table {
 458        uint32_t size;
 459        uint32_t size_cmask_02;
 460        uint32_t size_cmask_04;
 461        uint32_t size_cmask_08;
 462        uint32_t size_cmask_10;
 463        uint32_t size_cmask_FF;
 464        uint32_t version;
 465};
 466
 467/*qla4xxx ipaddress configuration details */
 468struct ipaddress_config {
 469        uint16_t ipv4_options;
 470        uint16_t tcp_options;
 471        uint16_t ipv4_vlan_tag;
 472        uint8_t ipv4_addr_state;
 473        uint8_t ip_address[IP_ADDR_LEN];
 474        uint8_t subnet_mask[IP_ADDR_LEN];
 475        uint8_t gateway[IP_ADDR_LEN];
 476        uint32_t ipv6_options;
 477        uint32_t ipv6_addl_options;
 478        uint8_t ipv6_link_local_state;
 479        uint8_t ipv6_addr0_state;
 480        uint8_t ipv6_addr1_state;
 481        uint8_t ipv6_default_router_state;
 482        uint16_t ipv6_vlan_tag;
 483        struct in6_addr ipv6_link_local_addr;
 484        struct in6_addr ipv6_addr0;
 485        struct in6_addr ipv6_addr1;
 486        struct in6_addr ipv6_default_router_addr;
 487        uint16_t eth_mtu_size;
 488        uint16_t ipv4_port;
 489        uint16_t ipv6_port;
 490        uint8_t control;
 491        uint16_t ipv6_tcp_options;
 492        uint8_t tcp_wsf;
 493        uint8_t ipv6_tcp_wsf;
 494        uint8_t ipv4_tos;
 495        uint8_t ipv4_cache_id;
 496        uint8_t ipv6_cache_id;
 497        uint8_t ipv4_alt_cid_len;
 498        uint8_t ipv4_alt_cid[11];
 499        uint8_t ipv4_vid_len;
 500        uint8_t ipv4_vid[11];
 501        uint8_t ipv4_ttl;
 502        uint16_t ipv6_flow_lbl;
 503        uint8_t ipv6_traffic_class;
 504        uint8_t ipv6_hop_limit;
 505        uint32_t ipv6_nd_reach_time;
 506        uint32_t ipv6_nd_rexmit_timer;
 507        uint32_t ipv6_nd_stale_timeout;
 508        uint8_t ipv6_dup_addr_detect_count;
 509        uint32_t ipv6_gw_advrt_mtu;
 510        uint16_t def_timeout;
 511        uint8_t abort_timer;
 512        uint16_t iscsi_options;
 513        uint16_t iscsi_max_pdu_size;
 514        uint16_t iscsi_first_burst_len;
 515        uint16_t iscsi_max_outstnd_r2t;
 516        uint16_t iscsi_max_burst_len;
 517        uint8_t iscsi_name[224];
 518};
 519
 520#define QL4_CHAP_MAX_NAME_LEN 256
 521#define QL4_CHAP_MAX_SECRET_LEN 100
 522#define LOCAL_CHAP      0
 523#define BIDI_CHAP       1
 524
 525struct ql4_chap_format {
 526        u8  intr_chap_name[QL4_CHAP_MAX_NAME_LEN];
 527        u8  intr_secret[QL4_CHAP_MAX_SECRET_LEN];
 528        u8  target_chap_name[QL4_CHAP_MAX_NAME_LEN];
 529        u8  target_secret[QL4_CHAP_MAX_SECRET_LEN];
 530        u16 intr_chap_name_length;
 531        u16 intr_secret_length;
 532        u16 target_chap_name_length;
 533        u16 target_secret_length;
 534};
 535
 536struct ip_address_format {
 537        u8 ip_type;
 538        u8 ip_address[16];
 539};
 540
 541struct  ql4_conn_info {
 542        u16     dest_port;
 543        struct  ip_address_format dest_ipaddr;
 544        struct  ql4_chap_format chap;
 545};
 546
 547struct ql4_boot_session_info {
 548        u8      target_name[224];
 549        struct  ql4_conn_info conn_list[1];
 550};
 551
 552struct ql4_boot_tgt_info {
 553        struct ql4_boot_session_info boot_pri_sess;
 554        struct ql4_boot_session_info boot_sec_sess;
 555};
 556
 557/*
 558 * Linux Host Adapter structure
 559 */
 560struct scsi_qla_host {
 561        /* Linux adapter configuration data */
 562        unsigned long flags;
 563
 564#define AF_ONLINE                       0 /* 0x00000001 */
 565#define AF_INIT_DONE                    1 /* 0x00000002 */
 566#define AF_MBOX_COMMAND                 2 /* 0x00000004 */
 567#define AF_MBOX_COMMAND_DONE            3 /* 0x00000008 */
 568#define AF_ST_DISCOVERY_IN_PROGRESS     4 /* 0x00000010 */
 569#define AF_INTERRUPTS_ON                6 /* 0x00000040 */
 570#define AF_GET_CRASH_RECORD             7 /* 0x00000080 */
 571#define AF_LINK_UP                      8 /* 0x00000100 */
 572#define AF_LOOPBACK                     9 /* 0x00000200 */
 573#define AF_IRQ_ATTACHED                 10 /* 0x00000400 */
 574#define AF_DISABLE_ACB_COMPLETE         11 /* 0x00000800 */
 575#define AF_HA_REMOVAL                   12 /* 0x00001000 */
 576#define AF_INTx_ENABLED                 15 /* 0x00008000 */
 577#define AF_MSI_ENABLED                  16 /* 0x00010000 */
 578#define AF_MSIX_ENABLED                 17 /* 0x00020000 */
 579#define AF_MBOX_COMMAND_NOPOLL          18 /* 0x00040000 */
 580#define AF_FW_RECOVERY                  19 /* 0x00080000 */
 581#define AF_EEH_BUSY                     20 /* 0x00100000 */
 582#define AF_PCI_CHANNEL_IO_PERM_FAILURE  21 /* 0x00200000 */
 583#define AF_BUILD_DDB_LIST               22 /* 0x00400000 */
 584#define AF_82XX_FW_DUMPED               24 /* 0x01000000 */
 585#define AF_8XXX_RST_OWNER               25 /* 0x02000000 */
 586#define AF_82XX_DUMP_READING            26 /* 0x04000000 */
 587#define AF_83XX_IOCB_INTR_ON            28 /* 0x10000000 */
 588#define AF_83XX_MBOX_INTR_ON            29 /* 0x20000000 */
 589
 590        unsigned long dpc_flags;
 591
 592#define DPC_RESET_HA                    1 /* 0x00000002 */
 593#define DPC_RETRY_RESET_HA              2 /* 0x00000004 */
 594#define DPC_RELOGIN_DEVICE              3 /* 0x00000008 */
 595#define DPC_RESET_HA_FW_CONTEXT         4 /* 0x00000010 */
 596#define DPC_RESET_HA_INTR               5 /* 0x00000020 */
 597#define DPC_ISNS_RESTART                7 /* 0x00000080 */
 598#define DPC_AEN                         9 /* 0x00000200 */
 599#define DPC_GET_DHCP_IP_ADDR            15 /* 0x00008000 */
 600#define DPC_LINK_CHANGED                18 /* 0x00040000 */
 601#define DPC_RESET_ACTIVE                20 /* 0x00100000 */
 602#define DPC_HA_UNRECOVERABLE            21 /* 0x00200000 ISP-82xx only*/
 603#define DPC_HA_NEED_QUIESCENT           22 /* 0x00400000 ISP-82xx only*/
 604#define DPC_POST_IDC_ACK                23 /* 0x00800000 */
 605#define DPC_RESTORE_ACB                 24 /* 0x01000000 */
 606#define DPC_SYSFS_DDB_EXPORT            25 /* 0x02000000 */
 607
 608        struct Scsi_Host *host; /* pointer to host data */
 609        uint32_t tot_ddbs;
 610
 611        uint16_t iocb_cnt;
 612        uint16_t iocb_hiwat;
 613
 614        /* SRB cache. */
 615#define SRB_MIN_REQ     128
 616        mempool_t *srb_mempool;
 617
 618        /* pci information */
 619        struct pci_dev *pdev;
 620
 621        struct isp_reg __iomem *reg; /* Base I/O address */
 622        unsigned long pio_address;
 623        unsigned long pio_length;
 624#define MIN_IOBASE_LEN          0x100
 625
 626        uint16_t req_q_count;
 627
 628        unsigned long host_no;
 629
 630        /* NVRAM registers */
 631        struct eeprom_data *nvram;
 632        spinlock_t hardware_lock ____cacheline_aligned;
 633        uint32_t eeprom_cmd_data;
 634
 635        /* Counters for general statistics */
 636        uint64_t isr_count;
 637        uint64_t adapter_error_count;
 638        uint64_t device_error_count;
 639        uint64_t total_io_count;
 640        uint64_t total_mbytes_xferred;
 641        uint64_t link_failure_count;
 642        uint64_t invalid_crc_count;
 643        uint32_t bytes_xfered;
 644        uint32_t spurious_int_count;
 645        uint32_t aborted_io_count;
 646        uint32_t io_timeout_count;
 647        uint32_t mailbox_timeout_count;
 648        uint32_t seconds_since_last_intr;
 649        uint32_t seconds_since_last_heartbeat;
 650        uint32_t mac_index;
 651
 652        /* Info Needed for Management App */
 653        /* --- From GetFwVersion --- */
 654        uint32_t firmware_version[2];
 655        uint32_t patch_number;
 656        uint32_t build_number;
 657        uint32_t board_id;
 658
 659        /* --- From Init_FW --- */
 660        /* init_cb_t *init_cb; */
 661        uint16_t firmware_options;
 662        uint8_t alias[32];
 663        uint8_t name_string[256];
 664        uint8_t heartbeat_interval;
 665
 666        /* --- From FlashSysInfo --- */
 667        uint8_t my_mac[MAC_ADDR_LEN];
 668        uint8_t serial_number[16];
 669        uint16_t port_num;
 670        /* --- From GetFwState --- */
 671        uint32_t firmware_state;
 672        uint32_t addl_fw_state;
 673
 674        /* Linux kernel thread */
 675        struct workqueue_struct *dpc_thread;
 676        struct work_struct dpc_work;
 677
 678        /* Linux timer thread */
 679        struct timer_list timer;
 680        uint32_t timer_active;
 681
 682        /* Recovery Timers */
 683        atomic_t check_relogin_timeouts;
 684        uint32_t retry_reset_ha_cnt;
 685        uint32_t isp_reset_timer;       /* reset test timer */
 686        uint32_t nic_reset_timer;       /* simulated nic reset test timer */
 687        int eh_start;
 688        struct list_head free_srb_q;
 689        uint16_t free_srb_q_count;
 690        uint16_t num_srbs_allocated;
 691
 692        /* DMA Memory Block */
 693        void *queues;
 694        dma_addr_t queues_dma;
 695        unsigned long queues_len;
 696
 697#define MEM_ALIGN_VALUE \
 698            ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \
 699             sizeof(struct queue_entry))
 700        /* request and response queue variables */
 701        dma_addr_t request_dma;
 702        struct queue_entry *request_ring;
 703        struct queue_entry *request_ptr;
 704        dma_addr_t response_dma;
 705        struct queue_entry *response_ring;
 706        struct queue_entry *response_ptr;
 707        dma_addr_t shadow_regs_dma;
 708        struct shadow_regs *shadow_regs;
 709        uint16_t request_in;    /* Current indexes. */
 710        uint16_t request_out;
 711        uint16_t response_in;
 712        uint16_t response_out;
 713
 714        /* aen queue variables */
 715        uint16_t aen_q_count;   /* Number of available aen_q entries */
 716        uint16_t aen_in;        /* Current indexes */
 717        uint16_t aen_out;
 718        struct aen aen_q[MAX_AEN_ENTRIES];
 719
 720        struct ql4_aen_log aen_log;/* tracks all aens */
 721
 722        /* This mutex protects several threads to do mailbox commands
 723         * concurrently.
 724         */
 725        struct mutex  mbox_sem;
 726
 727        /* temporary mailbox status registers */
 728        volatile uint8_t mbox_status_count;
 729        volatile uint32_t mbox_status[MBOX_REG_COUNT];
 730
 731        /* FW ddb index map */
 732        struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
 733
 734        /* Saved srb for status continuation entry processing */
 735        struct srb *status_srb;
 736
 737        uint8_t acb_version;
 738
 739        /* qla82xx specific fields */
 740        struct device_reg_82xx  __iomem *qla4_82xx_reg; /* Base I/O address */
 741        unsigned long nx_pcibase;       /* Base I/O address */
 742        uint8_t *nx_db_rd_ptr;          /* Doorbell read pointer */
 743        unsigned long nx_db_wr_ptr;     /* Door bell write pointer */
 744        unsigned long first_page_group_start;
 745        unsigned long first_page_group_end;
 746
 747        uint32_t crb_win;
 748        uint32_t curr_window;
 749        uint32_t ddr_mn_window;
 750        unsigned long mn_win_crb;
 751        unsigned long ms_win_crb;
 752        int qdr_sn_window;
 753        rwlock_t hw_lock;
 754        uint16_t func_num;
 755        int link_width;
 756
 757        struct qla4_8xxx_legacy_intr_set nx_legacy_intr;
 758        u32 nx_crb_mask;
 759
 760        uint8_t revision_id;
 761        uint32_t fw_heartbeat_counter;
 762
 763        struct isp_operations *isp_ops;
 764        struct ql82xx_hw_data hw;
 765
 766        struct ql4_msix_entry msix_entries[QLA_MSIX_ENTRIES];
 767
 768        uint32_t nx_dev_init_timeout;
 769        uint32_t nx_reset_timeout;
 770        void *fw_dump;
 771        uint32_t fw_dump_size;
 772        uint32_t fw_dump_capture_mask;
 773        void *fw_dump_tmplt_hdr;
 774        uint32_t fw_dump_tmplt_size;
 775        uint32_t fw_dump_skip_size;
 776
 777        struct completion mbx_intr_comp;
 778
 779        struct ipaddress_config ip_config;
 780        struct iscsi_iface *iface_ipv4;
 781        struct iscsi_iface *iface_ipv6_0;
 782        struct iscsi_iface *iface_ipv6_1;
 783
 784        /* --- From About Firmware --- */
 785        struct about_fw_info fw_info;
 786        uint32_t fw_uptime_secs;  /* seconds elapsed since fw bootup */
 787        uint32_t fw_uptime_msecs; /* milliseconds beyond elapsed seconds */
 788        uint16_t def_timeout; /* Default login timeout */
 789
 790        uint32_t flash_state;
 791#define QLFLASH_WAITING         0
 792#define QLFLASH_READING         1
 793#define QLFLASH_WRITING         2
 794        struct dma_pool *chap_dma_pool;
 795        uint8_t *chap_list; /* CHAP table cache */
 796        struct mutex  chap_sem;
 797
 798#define CHAP_DMA_BLOCK_SIZE    512
 799        struct workqueue_struct *task_wq;
 800        unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
 801#define SYSFS_FLAG_FW_SEL_BOOT 2
 802        struct iscsi_boot_kset *boot_kset;
 803        struct ql4_boot_tgt_info boot_tgt;
 804        uint16_t phy_port_num;
 805        uint16_t phy_port_cnt;
 806        uint16_t iscsi_pci_func_cnt;
 807        uint8_t model_name[16];
 808        struct completion disable_acb_comp;
 809        struct dma_pool *fw_ddb_dma_pool;
 810#define DDB_DMA_BLOCK_SIZE 512
 811        uint16_t pri_ddb_idx;
 812        uint16_t sec_ddb_idx;
 813        int is_reset;
 814        uint16_t temperature;
 815
 816        /* event work list */
 817        struct list_head work_list;
 818        spinlock_t work_lock;
 819
 820        /* mbox iocb */
 821#define MAX_MRB         128
 822        struct mrb *active_mrb_array[MAX_MRB];
 823        uint32_t mrb_index;
 824
 825        uint32_t *reg_tbl;
 826        struct qla4_83xx_reset_template reset_tmplt;
 827        struct device_reg_83xx  __iomem *qla4_83xx_reg; /* Base I/O address
 828                                                           for ISP8324 and
 829                                                           and ISP8042 */
 830        uint32_t pf_bit;
 831        struct qla4_83xx_idc_information idc_info;
 832        struct addr_ctrl_blk *saved_acb;
 833        int notify_idc_comp;
 834        int notify_link_up_comp;
 835        int idc_extend_tmo;
 836        struct completion idc_comp;
 837        struct completion link_up_comp;
 838};
 839
 840struct ql4_task_data {
 841        struct scsi_qla_host *ha;
 842        uint8_t iocb_req_cnt;
 843        dma_addr_t data_dma;
 844        void *req_buffer;
 845        dma_addr_t req_dma;
 846        uint32_t req_len;
 847        void *resp_buffer;
 848        dma_addr_t resp_dma;
 849        uint32_t resp_len;
 850        struct iscsi_task *task;
 851        struct passthru_status sts;
 852        struct work_struct task_work;
 853};
 854
 855struct qla_endpoint {
 856        struct Scsi_Host *host;
 857        struct sockaddr_storage dst_addr;
 858};
 859
 860struct qla_conn {
 861        struct qla_endpoint *qla_ep;
 862};
 863
 864static inline int is_ipv4_enabled(struct scsi_qla_host *ha)
 865{
 866        return ((ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) != 0);
 867}
 868
 869static inline int is_ipv6_enabled(struct scsi_qla_host *ha)
 870{
 871        return ((ha->ip_config.ipv6_options &
 872                IPV6_OPT_IPV6_PROTOCOL_ENABLE) != 0);
 873}
 874
 875static inline int is_qla4010(struct scsi_qla_host *ha)
 876{
 877        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010;
 878}
 879
 880static inline int is_qla4022(struct scsi_qla_host *ha)
 881{
 882        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
 883}
 884
 885static inline int is_qla4032(struct scsi_qla_host *ha)
 886{
 887        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
 888}
 889
 890static inline int is_qla40XX(struct scsi_qla_host *ha)
 891{
 892        return is_qla4032(ha) || is_qla4022(ha) || is_qla4010(ha);
 893}
 894
 895static inline int is_qla8022(struct scsi_qla_host *ha)
 896{
 897        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
 898}
 899
 900static inline int is_qla8032(struct scsi_qla_host *ha)
 901{
 902        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324;
 903}
 904
 905static inline int is_qla8042(struct scsi_qla_host *ha)
 906{
 907        return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042;
 908}
 909
 910static inline int is_qla80XX(struct scsi_qla_host *ha)
 911{
 912        return is_qla8022(ha) || is_qla8032(ha) || is_qla8042(ha);
 913}
 914
 915static inline int is_aer_supported(struct scsi_qla_host *ha)
 916{
 917        return ((ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022) ||
 918                (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324) ||
 919                (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042));
 920}
 921
 922static inline int adapter_up(struct scsi_qla_host *ha)
 923{
 924        return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
 925               (test_bit(AF_LINK_UP, &ha->flags) != 0) &&
 926               (!test_bit(AF_LOOPBACK, &ha->flags));
 927}
 928
 929static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost)
 930{
 931        return (struct scsi_qla_host *)iscsi_host_priv(shost);
 932}
 933
 934static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
 935{
 936        return (is_qla4010(ha) ?
 937                &ha->reg->u1.isp4010.nvram :
 938                &ha->reg->u1.isp4022.semaphore);
 939}
 940
 941static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
 942{
 943        return (is_qla4010(ha) ?
 944                &ha->reg->u1.isp4010.nvram :
 945                &ha->reg->u1.isp4022.nvram);
 946}
 947
 948static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
 949{
 950        return (is_qla4010(ha) ?
 951                &ha->reg->u2.isp4010.ext_hw_conf :
 952                &ha->reg->u2.isp4022.p0.ext_hw_conf);
 953}
 954
 955static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
 956{
 957        return (is_qla4010(ha) ?
 958                &ha->reg->u2.isp4010.port_status :
 959                &ha->reg->u2.isp4022.p0.port_status);
 960}
 961
 962static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
 963{
 964        return (is_qla4010(ha) ?
 965                &ha->reg->u2.isp4010.port_ctrl :
 966                &ha->reg->u2.isp4022.p0.port_ctrl);
 967}
 968
 969static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
 970{
 971        return (is_qla4010(ha) ?
 972                &ha->reg->u2.isp4010.port_err_status :
 973                &ha->reg->u2.isp4022.p0.port_err_status);
 974}
 975
 976static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
 977{
 978        return (is_qla4010(ha) ?
 979                &ha->reg->u2.isp4010.gp_out :
 980                &ha->reg->u2.isp4022.p0.gp_out);
 981}
 982
 983static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
 984{
 985        return (is_qla4010(ha) ?
 986                offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
 987                offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
 988}
 989
 990int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 991void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask);
 992int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 993
 994static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
 995{
 996        if (is_qla4010(a))
 997                return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
 998                                           QL4010_FLASH_SEM_BITS);
 999        else
1000                return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
1001                                           (QL4022_RESOURCE_BITS_BASE_CODE |
1002                                            (a->mac_index)) << 13);
1003}
1004
1005static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
1006{
1007        if (is_qla4010(a))
1008                ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
1009        else
1010                ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
1011}
1012
1013static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
1014{
1015        if (is_qla4010(a))
1016                return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
1017                                           QL4010_NVRAM_SEM_BITS);
1018        else
1019                return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
1020                                           (QL4022_RESOURCE_BITS_BASE_CODE |
1021                                            (a->mac_index)) << 10);
1022}
1023
1024static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
1025{
1026        if (is_qla4010(a))
1027                ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
1028        else
1029                ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
1030}
1031
1032static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
1033{
1034        if (is_qla4010(a))
1035                return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
1036                                       QL4010_DRVR_SEM_BITS);
1037        else
1038                return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
1039                                       (QL4022_RESOURCE_BITS_BASE_CODE |
1040                                        (a->mac_index)) << 1);
1041}
1042
1043static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
1044{
1045        if (is_qla4010(a))
1046                ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
1047        else
1048                ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
1049}
1050
1051static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
1052{
1053        return test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
1054               test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
1055               test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
1056               test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
1057               test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
1058               test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
1059
1060}
1061
1062static inline int qla4_8xxx_rd_direct(struct scsi_qla_host *ha,
1063                                      const uint32_t crb_reg)
1064{
1065        return ha->isp_ops->rd_reg_direct(ha, ha->reg_tbl[crb_reg]);
1066}
1067
1068static inline void qla4_8xxx_wr_direct(struct scsi_qla_host *ha,
1069                                       const uint32_t crb_reg,
1070                                       const uint32_t value)
1071{
1072        ha->isp_ops->wr_reg_direct(ha, ha->reg_tbl[crb_reg], value);
1073}
1074
1075/*---------------------------------------------------------------------------*/
1076
1077/* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
1078
1079#define INIT_ADAPTER    0
1080#define RESET_ADAPTER   1
1081
1082#define PRESERVE_DDB_LIST       0
1083#define REBUILD_DDB_LIST        1
1084
1085/* Defines for process_aen() */
1086#define PROCESS_ALL_AENS         0
1087#define FLUSH_DDB_CHANGED_AENS   1
1088
1089/* Defines for udev events */
1090#define QL4_UEVENT_CODE_FW_DUMP         0
1091
1092#endif  /*_QLA4XXX_H */
1093