drivers/scsi/qla4xxx/ql4_def.h

   1 /*
   2  * QLogic iSCSI HBA Driver
   3  * Copyright (c)  2003-2006 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
  28 #include <net/tcp.h>
  29 #include <scsi/scsi.h>
  30 #include <scsi/scsi_host.h>
  31 #include <scsi/scsi_device.h>
  32 #include <scsi/scsi_cmnd.h>
  33 #include <scsi/scsi_transport.h>
  34 #include <scsi/scsi_transport_iscsi.h>
  35
  36
  37 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4010
  38 #define PCI_DEVICE_ID_QLOGIC_ISP4010    0x4010
  39 #endif
  40
  41 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4022
  42 #define PCI_DEVICE_ID_QLOGIC_ISP4022    0x4022
  43 #endif
  44
  45 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4032
  46 #define PCI_DEVICE_ID_QLOGIC_ISP4032    0x4032
  47 #endif
  48
  49 #define QLA_SUCCESS                     0
  50 #define QLA_ERROR                       1
  51
  52 /*
  53  * Data bit definitions
  54  */
  55 #define BIT_0   0x1
  56 #define BIT_1   0x2
  57 #define BIT_2   0x4
  58 #define BIT_3   0x8
  59 #define BIT_4   0x10
  60 #define BIT_5   0x20
  61 #define BIT_6   0x40
  62 #define BIT_7   0x80
  63 #define BIT_8   0x100
  64 #define BIT_9   0x200
  65 #define BIT_10  0x400
  66 #define BIT_11  0x800
  67 #define BIT_12  0x1000
  68 #define BIT_13  0x2000
  69 #define BIT_14  0x4000
  70 #define BIT_15  0x8000
  71 #define BIT_16  0x10000
  72 #define BIT_17  0x20000
  73 #define BIT_18  0x40000
  74 #define BIT_19  0x80000
  75 #define BIT_20  0x100000
  76 #define BIT_21  0x200000
  77 #define BIT_22  0x400000
  78 #define BIT_23  0x800000
  79 #define BIT_24  0x1000000
  80 #define BIT_25  0x2000000
  81 #define BIT_26  0x4000000
  82 #define BIT_27  0x8000000
  83 #define BIT_28  0x10000000
  84 #define BIT_29  0x20000000
  85 #define BIT_30  0x40000000
  86 #define BIT_31  0x80000000
  87
  88 /*
  89  * Host adapter default definitions
  90  ***********************************/
  91 #define MAX_HBAS                16
  92 #define MAX_BUSES               1
  93 #define MAX_TARGETS             (MAX_PRST_DEV_DB_ENTRIES +  MAX_DEV_DB_ENTRIES)
  94 #define MAX_LUNS                0xffff
  95 #define MAX_AEN_ENTRIES         256 /* should be > EXT_DEF_MAX_AEN_QUEUE */
  96 #define MAX_DDB_ENTRIES         (MAX_PRST_DEV_DB_ENTRIES + MAX_DEV_DB_ENTRIES)
  97 #define MAX_PDU_ENTRIES         32
  98 #define INVALID_ENTRY           0xFFFF
  99 #define MAX_CMDS_TO_RISC        1024
 100 #define MAX_SRBS                MAX_CMDS_TO_RISC
 101 #define MBOX_AEN_REG_COUNT      5
 102 #define MAX_INIT_RETRIES        5
 103 #define IOCB_HIWAT_CUSHION      16
 104
 105 /*
 106  * Buffer sizes
 107  */
 108 #define REQUEST_QUEUE_DEPTH             MAX_CMDS_TO_RISC
 109 #define RESPONSE_QUEUE_DEPTH            64
 110 #define QUEUE_SIZE                      64
 111 #define DMA_BUFFER_SIZE                 512
 112
 113 /*
 114  * Misc
 115  */
 116 #define MAC_ADDR_LEN                    6       /* in bytes */
 117 #define IP_ADDR_LEN                     4       /* in bytes */
 118 #define DRIVER_NAME                     "qla4xxx"
 119
 120 #define MAX_LINKED_CMDS_PER_LUN         3
 121 #define MAX_REQS_SERVICED_PER_INTR      16
 122
 123 #define ISCSI_IPADDR_SIZE               4       /* IP address size */
 124 #define ISCSI_ALIAS_SIZE                32      /* ISCSI Alais name size */
 125 #define ISCSI_NAME_SIZE                 0xE0    /* ISCSI Name size */
 126
 127 #define LSDW(x) ((u32)((u64)(x)))
 128 #define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
 129
 130 /*
 131  * Retry & Timeout Values
 132  */
 133 #define MBOX_TOV                        60
 134 #define SOFT_RESET_TOV                  30
 135 #define RESET_INTR_TOV                  3
 136 #define SEMAPHORE_TOV                   10
 137 #define ADAPTER_INIT_TOV                120
 138 #define ADAPTER_RESET_TOV               180
 139 #define EXTEND_CMD_TOV                  60
 140 #define WAIT_CMD_TOV                    30
 141 #define EH_WAIT_CMD_TOV                 120
 142 #define FIRMWARE_UP_TOV                 60
 143 #define RESET_FIRMWARE_TOV              30
 144 #define LOGOUT_TOV                      10
 145 #define IOCB_TOV_MARGIN                 10
 146 #define RELOGIN_TOV                     18
 147 #define ISNS_DEREG_TOV                  5
 148
 149 #define MAX_RESET_HA_RETRIES            2
 150
 151 /*
 152  * SCSI Request Block structure  (srb)  that is placed
 153  * on cmd->SCp location of every I/O     [We have 22 bytes available]
 154  */
 155 struct srb {
 156         struct list_head list;  /* (8)   */
 157         struct scsi_qla_host *ha;       /* HA the SP is queued on */
 158         struct ddb_entry        *ddb;
 159         uint16_t flags;         /* (1) Status flags. */
 160
 161 #define SRB_DMA_VALID           BIT_3   /* DMA Buffer mapped. */
 162 #define SRB_GOT_SENSE           BIT_4   /* sense data recieved. */
 163         uint8_t state;          /* (1) Status flags. */
 164
 165 #define SRB_NO_QUEUE_STATE       0      /* Request is in between states */
 166 #define SRB_FREE_STATE           1
 167 #define SRB_ACTIVE_STATE         3
 168 #define SRB_ACTIVE_TIMEOUT_STATE 4
 169 #define SRB_SUSPENDED_STATE      7      /* Request in suspended state */
 170
 171         struct scsi_cmnd *cmd;  /* (4) SCSI command block */
 172         dma_addr_t dma_handle;  /* (4) for unmap of single transfers */
 173         atomic_t ref_count;     /* reference count for this srb */
 174         uint32_t fw_ddb_index;
 175         uint8_t err_id;         /* error id */
 176 #define SRB_ERR_PORT       1    /* Request failed because "port down" */
 177 #define SRB_ERR_LOOP       2    /* Request failed because "loop down" */
 178 #define SRB_ERR_DEVICE     3    /* Request failed because "device error" */
 179 #define SRB_ERR_OTHER      4
 180
 181         uint16_t reserved;
 182         uint16_t iocb_tov;
 183         uint16_t iocb_cnt;      /* Number of used iocbs */
 184         uint16_t cc_stat;
 185         u_long r_start;         /* Time we recieve a cmd from OS */
 186         u_long u_start;         /* Time when we handed the cmd to F/W */
 187 };
 188
 189 /*
 190  * Asynchronous Event Queue structure
 191  */
 192 struct aen {
 193         uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
 194 };
 195
 196 struct ql4_aen_log {
 197         int count;
 198         struct aen entry[MAX_AEN_ENTRIES];
 199 };
 200
 201 /*
 202  * Device Database (DDB) structure
 203  */
 204 struct ddb_entry {
 205         struct list_head list;  /* ddb list */
 206         struct scsi_qla_host *ha;
 207         struct iscsi_cls_session *sess;
 208         struct iscsi_cls_conn *conn;
 209
 210         atomic_t state;         /* DDB State */
 211
 212         unsigned long flags;    /* DDB Flags */
 213
 214         unsigned long dev_scan_wait_to_start_relogin;
 215         unsigned long dev_scan_wait_to_complete_relogin;
 216
 217         uint16_t os_target_id;  /* Target ID */
 218         uint16_t fw_ddb_index;  /* DDB firmware index */
 219         uint8_t reserved[2];
 220         uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
 221
 222         uint32_t CmdSn;
 223         uint16_t target_session_id;
 224         uint16_t connection_id;
 225         uint16_t exe_throttle;  /* Max mumber of cmds outstanding
 226                                  * simultaneously */
 227         uint16_t task_mgmt_timeout; /* Min time for task mgmt cmds to
 228                                      * complete */
 229         uint16_t default_relogin_timeout; /*  Max time to wait for
 230                                            *  relogin to complete */
 231         uint16_t tcp_source_port_num;
 232         uint32_t default_time2wait; /* Default Min time between
 233                                      * relogins (+aens) */
 234
 235         atomic_t port_down_timer; /* Device connection timer */
 236         atomic_t retry_relogin_timer; /* Min Time between relogins
 237                                        * (4000 only) */
 238         atomic_t relogin_timer; /* Max Time to wait for relogin to complete */
 239         atomic_t relogin_retry_count; /* Num of times relogin has been
 240                                        * retried */
 241
 242         uint16_t port;
 243         uint32_t tpgt;
 244         uint8_t ip_addr[ISCSI_IPADDR_SIZE];
 245         uint8_t iscsi_name[ISCSI_NAME_SIZE];    /* 72 x48 */
 246         uint8_t iscsi_alias[0x20];
 247 };
 248
 249 /*
 250  * DDB states.
 251  */
 252 #define DDB_STATE_DEAD          0       /* We can no longer talk to
 253                                          * this device */
 254 #define DDB_STATE_ONLINE        1       /* Device ready to accept
 255                                          * commands */
 256 #define DDB_STATE_MISSING       2       /* Device logged off, trying
 257                                          * to re-login */
 258
 259 /*
 260  * DDB flags.
 261  */
 262 #define DF_RELOGIN              0       /* Relogin to device */
 263 #define DF_NO_RELOGIN           1       /* Do not relogin if IOCTL
 264                                          * logged it out */
 265 #define DF_ISNS_DISCOVERED      2       /* Device was discovered via iSNS */
 266 #define DF_FO_MASKED            3
 267
 268
 269 #include "ql4_fw.h"
 270 #include "ql4_nvram.h"
 271
 272 /*
 273  * Linux Host Adapter structure
 274  */
 275 struct scsi_qla_host {
 276         /* Linux adapter configuration data */
 277         unsigned long flags;
 278
 279 #define AF_ONLINE                       0 /* 0x00000001 */
 280 #define AF_INIT_DONE                    1 /* 0x00000002 */
 281 #define AF_MBOX_COMMAND                 2 /* 0x00000004 */
 282 #define AF_MBOX_COMMAND_DONE            3 /* 0x00000008 */
 283 #define AF_INTERRUPTS_ON                6 /* 0x00000040 */
 284 #define AF_GET_CRASH_RECORD             7 /* 0x00000080 */
 285 #define AF_LINK_UP                      8 /* 0x00000100 */
 286 #define AF_IRQ_ATTACHED                 10 /* 0x00000400 */
 287 #define AF_DISABLE_ACB_COMPLETE         11 /* 0x00000800 */
 288
 289         unsigned long dpc_flags;
 290
 291 #define DPC_RESET_HA                    1 /* 0x00000002 */
 292 #define DPC_RETRY_RESET_HA              2 /* 0x00000004 */
 293 #define DPC_RELOGIN_DEVICE              3 /* 0x00000008 */
 294 #define DPC_RESET_HA_DESTROY_DDB_LIST   4 /* 0x00000010 */
 295 #define DPC_RESET_HA_INTR               5 /* 0x00000020 */
 296 #define DPC_ISNS_RESTART                7 /* 0x00000080 */
 297 #define DPC_AEN                         9 /* 0x00000200 */
 298 #define DPC_GET_DHCP_IP_ADDR            15 /* 0x00008000 */
 299
 300         struct Scsi_Host *host; /* pointer to host data */
 301         uint32_t tot_ddbs;
 302
 303         uint16_t        iocb_cnt;
 304         uint16_t        iocb_hiwat;
 305
 306         /* SRB cache. */
 307 #define SRB_MIN_REQ     128
 308         mempool_t *srb_mempool;
 309
 310         /* pci information */
 311         struct pci_dev *pdev;
 312
 313         struct isp_reg __iomem *reg; /* Base I/O address */
 314         unsigned long pio_address;
 315         unsigned long pio_length;
 316 #define MIN_IOBASE_LEN          0x100
 317
 318         uint16_t req_q_count;
 319         uint8_t marker_needed;
 320         uint8_t rsvd1;
 321
 322         unsigned long host_no;
 323
 324         /* NVRAM registers */
 325         struct eeprom_data *nvram;
 326         spinlock_t hardware_lock ____cacheline_aligned;
 327         uint32_t   eeprom_cmd_data;
 328
 329         /* Counters for general statistics */
 330         uint64_t isr_count;
 331         uint64_t adapter_error_count;
 332         uint64_t device_error_count;
 333         uint64_t total_io_count;
 334         uint64_t total_mbytes_xferred;
 335         uint64_t link_failure_count;
 336         uint64_t invalid_crc_count;
 337         uint32_t bytes_xfered;
 338         uint32_t spurious_int_count;
 339         uint32_t aborted_io_count;
 340         uint32_t io_timeout_count;
 341         uint32_t mailbox_timeout_count;
 342         uint32_t seconds_since_last_intr;
 343         uint32_t seconds_since_last_heartbeat;
 344         uint32_t mac_index;
 345
 346         /* Info Needed for Management App */
 347         /* --- From GetFwVersion --- */
 348         uint32_t firmware_version[2];
 349         uint32_t patch_number;
 350         uint32_t build_number;
 351         uint32_t board_id;
 352
 353         /* --- From Init_FW --- */
 354         /* init_cb_t *init_cb; */
 355         uint16_t firmware_options;
 356         uint16_t tcp_options;
 357         uint8_t ip_address[IP_ADDR_LEN];
 358         uint8_t subnet_mask[IP_ADDR_LEN];
 359         uint8_t gateway[IP_ADDR_LEN];
 360         uint8_t alias[32];
 361         uint8_t name_string[256];
 362         uint8_t heartbeat_interval;
 363         uint8_t rsvd;
 364
 365         /* --- From FlashSysInfo --- */
 366         uint8_t my_mac[MAC_ADDR_LEN];
 367         uint8_t serial_number[16];
 368
 369         /* --- From GetFwState --- */
 370         uint32_t firmware_state;
 371         uint32_t addl_fw_state;
 372
 373         /* Linux kernel thread */
 374         struct workqueue_struct *dpc_thread;
 375         struct work_struct dpc_work;
 376
 377         /* Linux timer thread */
 378         struct timer_list timer;
 379         uint32_t timer_active;
 380
 381         /* Recovery Timers */
 382         uint32_t port_down_retry_count;
 383         uint32_t discovery_wait;
 384         atomic_t check_relogin_timeouts;
 385         uint32_t retry_reset_ha_cnt;
 386         uint32_t isp_reset_timer;       /* reset test timer */
 387         uint32_t nic_reset_timer;       /* simulated nic reset test timer */
 388         int eh_start;
 389         struct list_head free_srb_q;
 390         uint16_t free_srb_q_count;
 391         uint16_t num_srbs_allocated;
 392
 393         /* DMA Memory Block */
 394         void *queues;
 395         dma_addr_t queues_dma;
 396         unsigned long queues_len;
 397
 398 #define MEM_ALIGN_VALUE \
 399             ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \
 400              sizeof(struct queue_entry))
 401         /* request and response queue variables */
 402         dma_addr_t request_dma;
 403         struct queue_entry *request_ring;
 404         struct queue_entry *request_ptr;
 405         dma_addr_t response_dma;
 406         struct queue_entry *response_ring;
 407         struct queue_entry *response_ptr;
 408         dma_addr_t shadow_regs_dma;
 409         struct shadow_regs *shadow_regs;
 410         uint16_t request_in;    /* Current indexes. */
 411         uint16_t request_out;
 412         uint16_t response_in;
 413         uint16_t response_out;
 414
 415         /* aen queue variables */
 416         uint16_t aen_q_count;   /* Number of available aen_q entries */
 417         uint16_t aen_in;        /* Current indexes */
 418         uint16_t aen_out;
 419         struct aen aen_q[MAX_AEN_ENTRIES];
 420
 421         struct ql4_aen_log aen_log;/* tracks all aens */
 422
 423         /* This mutex protects several threads to do mailbox commands
 424          * concurrently.
 425          */
 426         struct mutex  mbox_sem;
 427
 428         /* temporary mailbox status registers */
 429         volatile uint8_t mbox_status_count;
 430         volatile uint32_t mbox_status[MBOX_REG_COUNT];
 431
 432         /* local device database list (contains internal ddb entries) */
 433         struct list_head ddb_list;
 434
 435         /* Map ddb_list entry by FW ddb index */
 436         struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
 437
 438 };
 439
 440 static inline int is_qla4010(struct scsi_qla_host *ha)
 441 {
 442         return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010;
 443 }
 444
 445 static inline int is_qla4022(struct scsi_qla_host *ha)
 446 {
 447         return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
 448 }
 449
 450 static inline int is_qla4032(struct scsi_qla_host *ha)
 451 {
 452         return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
 453 }
 454
 455 static inline int adapter_up(struct scsi_qla_host *ha)
 456 {
 457         return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
 458                 (test_bit(AF_LINK_UP, &ha->flags) != 0);
 459 }
 460
 461 static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost)
 462 {
 463         return (struct scsi_qla_host *)shost->hostdata;
 464 }
 465
 466 static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
 467 {
 468         return (is_qla4010(ha) ?
 469                 &ha->reg->u1.isp4010.nvram :
 470                 &ha->reg->u1.isp4022.semaphore);
 471 }
 472
 473 static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
 474 {
 475         return (is_qla4010(ha) ?
 476                 &ha->reg->u1.isp4010.nvram :
 477                 &ha->reg->u1.isp4022.nvram);
 478 }
 479
 480 static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
 481 {
 482         return (is_qla4010(ha) ?
 483                 &ha->reg->u2.isp4010.ext_hw_conf :
 484                 &ha->reg->u2.isp4022.p0.ext_hw_conf);
 485 }
 486
 487 static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
 488 {
 489         return (is_qla4010(ha) ?
 490                 &ha->reg->u2.isp4010.port_status :
 491                 &ha->reg->u2.isp4022.p0.port_status);
 492 }
 493
 494 static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
 495 {
 496         return (is_qla4010(ha) ?
 497                 &ha->reg->u2.isp4010.port_ctrl :
 498                 &ha->reg->u2.isp4022.p0.port_ctrl);
 499 }
 500
 501 static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
 502 {
 503         return (is_qla4010(ha) ?
 504                 &ha->reg->u2.isp4010.port_err_status :
 505                 &ha->reg->u2.isp4022.p0.port_err_status);
 506 }
 507
 508 static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
 509 {
 510         return (is_qla4010(ha) ?
 511                 &ha->reg->u2.isp4010.gp_out :
 512                 &ha->reg->u2.isp4022.p0.gp_out);
 513 }
 514
 515 static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
 516 {
 517         return (is_qla4010(ha) ?
 518                 offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
 519                 offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
 520 }
 521
 522 int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 523 void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask);
 524 int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
 525
 526 static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
 527 {
 528         if (is_qla4010(a))
 529                 return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
 530                                            QL4010_FLASH_SEM_BITS);
 531         else
 532                 return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
 533                                            (QL4022_RESOURCE_BITS_BASE_CODE |
 534                                             (a->mac_index)) << 13);
 535 }
 536
 537 static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
 538 {
 539         if (is_qla4010(a))
 540                 ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
 541         else
 542                 ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
 543 }
 544
 545 static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
 546 {
 547         if (is_qla4010(a))
 548                 return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
 549                                            QL4010_NVRAM_SEM_BITS);
 550         else
 551                 return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
 552                                            (QL4022_RESOURCE_BITS_BASE_CODE |
 553                                             (a->mac_index)) << 10);
 554 }
 555
 556 static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
 557 {
 558         if (is_qla4010(a))
 559                 ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
 560         else
 561                 ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
 562 }
 563
 564 static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
 565 {
 566         if (is_qla4010(a))
 567                 return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
 568                                        QL4010_DRVR_SEM_BITS);
 569         else
 570                 return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
 571                                        (QL4022_RESOURCE_BITS_BASE_CODE |
 572                                         (a->mac_index)) << 1);
 573 }
 574
 575 static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
 576 {
 577         if (is_qla4010(a))
 578                 ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
 579         else
 580                 ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
 581 }
 582
 583 /*---------------------------------------------------------------------------*/
 584
 585 /* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
 586 #define PRESERVE_DDB_LIST       0
 587 #define REBUILD_DDB_LIST        1
 588
 589 /* Defines for process_aen() */
 590 #define PROCESS_ALL_AENS         0
 591 #define FLUSH_DDB_CHANGED_AENS   1
 592 #define RELOGIN_DDB_CHANGED_AENS 2
 593
 594 #endif  /*_QLA4XXX_H */