drivers/scsi/dpti.h

   1 /***************************************************************************
   2                           dpti.h  -  description
   3                              -------------------
   4     begin                : Thu Sep 7 2000
   5     copyright            : (C) 2001 by Adaptec
   6
   7     See Documentation/scsi/dpti.txt for history, notes, license info
   8     and credits
   9  ***************************************************************************/
  10
  11 /***************************************************************************
  12  *                                                                         *
  13  *   This program is free software; you can redistribute it and/or modify  *
  14  *   it under the terms of the GNU General Public License as published by  *
  15  *   the Free Software Foundation; either version 2 of the License, or     *
  16  *   (at your option) any later version.                                   *
  17  *                                                                         *
  18  ***************************************************************************/
  19
  20 #ifndef _DPT_H
  21 #define _DPT_H
  22
  23 #define MAX_TO_IOP_MESSAGES   (255)
  24 #define MAX_FROM_IOP_MESSAGES (255)
  25
  26
  27 /*
  28  * SCSI interface function Prototypes
  29  */
  30
  31 static int adpt_detect(struct scsi_host_template * sht);
  32 static int adpt_queue(struct scsi_cmnd * cmd, void (*cmdcomplete) (struct scsi_cmnd *));
  33 static int adpt_abort(struct scsi_cmnd * cmd);
  34 static int adpt_reset(struct scsi_cmnd* cmd);
  35 static int adpt_release(struct Scsi_Host *host);
  36 static int adpt_slave_configure(struct scsi_device *);
  37
  38 static const char *adpt_info(struct Scsi_Host *pSHost);
  39 static int adpt_bios_param(struct scsi_device * sdev, struct block_device *dev,
  40                 sector_t, int geom[]);
  41
  42 static int adpt_bus_reset(struct scsi_cmnd* cmd);
  43 static int adpt_device_reset(struct scsi_cmnd* cmd);
  44
  45
  46 /*
  47  * struct scsi_host_template (see hosts.h)
  48  */
  49
  50 #define DPT_DRIVER_NAME "Adaptec I2O RAID"
  51
  52 #ifndef HOSTS_C
  53
  54 #include "dpt/sys_info.h"
  55 #include <linux/wait.h>
  56 #include "dpt/dpti_i2o.h"
  57 #include "dpt/dpti_ioctl.h"
  58
  59 #define DPT_I2O_VERSION "2.4 Build 5go"
  60 #define DPT_VERSION     2
  61 #define DPT_REVISION    '4'
  62 #define DPT_SUBREVISION '5'
  63 #define DPT_BETA        ""
  64 #define DPT_MONTH      8
  65 #define DPT_DAY        7
  66 #define DPT_YEAR        (2001-1980)
  67
  68 #define DPT_DRIVER      "dpt_i2o"
  69 #define DPTI_I2O_MAJOR  (151)
  70 #define DPT_ORGANIZATION_ID (0x1B)        /* For Private Messages */
  71 #define DPTI_MAX_HBA    (16)
  72 #define MAX_CHANNEL     (5)     // Maximum Channel # Supported
  73 #define MAX_ID          (128)   // Maximum Target ID Supported
  74
  75 /* Sizes in 4 byte words */
  76 #define REPLY_FRAME_SIZE  (17)
  77 #define MAX_MESSAGE_SIZE  (128)
  78 #define SG_LIST_ELEMENTS  (56)
  79
  80 #define EMPTY_QUEUE           0xffffffff
  81 #define I2O_INTERRUPT_PENDING_B   (0x08)
  82
  83 #define PCI_DPT_VENDOR_ID         (0x1044)      // DPT PCI Vendor ID
  84 #define PCI_DPT_DEVICE_ID         (0xA501)      // DPT PCI I2O Device ID
  85 #define PCI_DPT_RAPTOR_DEVICE_ID  (0xA511)
  86
  87 //#define REBOOT_NOTIFIER 1
  88 /* Debugging macro from Linux Device Drivers - Rubini */
  89 #undef PDEBUG
  90 #ifdef DEBUG
  91 //TODO add debug level switch
  92 #  define PDEBUG(fmt, args...)  printk(KERN_DEBUG "dpti: " fmt, ##args)
  93 #  define PDEBUGV(fmt, args...) printk(KERN_DEBUG "dpti: " fmt, ##args)
  94 #else
  95 # define PDEBUG(fmt, args...) /* not debugging: nothing */
  96 # define PDEBUGV(fmt, args...) /* not debugging: nothing */
  97 #endif
  98
  99 #define PERROR(fmt, args...) printk(KERN_ERR fmt, ##args)
 100 #define PWARN(fmt, args...) printk(KERN_WARNING fmt, ##args)
 101 #define PINFO(fmt, args...) printk(KERN_INFO fmt, ##args)
 102 #define PCRIT(fmt, args...) printk(KERN_CRIT fmt, ##args)
 103
 104 #define SHUTDOWN_SIGS   (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGTERM))
 105
 106 // Command timeouts
 107 #define FOREVER                 (0)
 108 #define TMOUT_INQUIRY           (20)
 109 #define TMOUT_FLUSH             (360/45)
 110 #define TMOUT_ABORT             (30)
 111 #define TMOUT_SCSI              (300)
 112 #define TMOUT_IOPRESET          (360)
 113 #define TMOUT_GETSTATUS         (15)
 114 #define TMOUT_INITOUTBOUND      (15)
 115 #define TMOUT_LCT               (360)
 116
 117
 118 #define I2O_SCSI_DEVICE_DSC_MASK                0x00FF
 119
 120 #define I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION  0x000A
 121
 122 #define I2O_SCSI_DSC_MASK                   0xFF00
 123 #define I2O_SCSI_DSC_SUCCESS                0x0000
 124 #define I2O_SCSI_DSC_REQUEST_ABORTED        0x0200
 125 #define I2O_SCSI_DSC_UNABLE_TO_ABORT        0x0300
 126 #define I2O_SCSI_DSC_COMPLETE_WITH_ERROR    0x0400
 127 #define I2O_SCSI_DSC_ADAPTER_BUSY           0x0500
 128 #define I2O_SCSI_DSC_REQUEST_INVALID        0x0600
 129 #define I2O_SCSI_DSC_PATH_INVALID           0x0700
 130 #define I2O_SCSI_DSC_DEVICE_NOT_PRESENT     0x0800
 131 #define I2O_SCSI_DSC_UNABLE_TO_TERMINATE    0x0900
 132 #define I2O_SCSI_DSC_SELECTION_TIMEOUT      0x0A00
 133 #define I2O_SCSI_DSC_COMMAND_TIMEOUT        0x0B00
 134 #define I2O_SCSI_DSC_MR_MESSAGE_RECEIVED    0x0D00
 135 #define I2O_SCSI_DSC_SCSI_BUS_RESET         0x0E00
 136 #define I2O_SCSI_DSC_PARITY_ERROR_FAILURE   0x0F00
 137 #define I2O_SCSI_DSC_AUTOSENSE_FAILED       0x1000
 138 #define I2O_SCSI_DSC_NO_ADAPTER             0x1100
 139 #define I2O_SCSI_DSC_DATA_OVERRUN           0x1200
 140 #define I2O_SCSI_DSC_UNEXPECTED_BUS_FREE    0x1300
 141 #define I2O_SCSI_DSC_SEQUENCE_FAILURE       0x1400
 142 #define I2O_SCSI_DSC_REQUEST_LENGTH_ERROR   0x1500
 143 #define I2O_SCSI_DSC_PROVIDE_FAILURE        0x1600
 144 #define I2O_SCSI_DSC_BDR_MESSAGE_SENT       0x1700
 145 #define I2O_SCSI_DSC_REQUEST_TERMINATED     0x1800
 146 #define I2O_SCSI_DSC_IDE_MESSAGE_SENT       0x3300
 147 #define I2O_SCSI_DSC_RESOURCE_UNAVAILABLE   0x3400
 148 #define I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT   0x3500
 149 #define I2O_SCSI_DSC_MESSAGE_RECEIVED       0x3600
 150 #define I2O_SCSI_DSC_INVALID_CDB            0x3700
 151 #define I2O_SCSI_DSC_LUN_INVALID            0x3800
 152 #define I2O_SCSI_DSC_SCSI_TID_INVALID       0x3900
 153 #define I2O_SCSI_DSC_FUNCTION_UNAVAILABLE   0x3A00
 154 #define I2O_SCSI_DSC_NO_NEXUS               0x3B00
 155 #define I2O_SCSI_DSC_SCSI_IID_INVALID       0x3C00
 156 #define I2O_SCSI_DSC_CDB_RECEIVED           0x3D00
 157 #define I2O_SCSI_DSC_LUN_ALREADY_ENABLED    0x3E00
 158 #define I2O_SCSI_DSC_BUS_BUSY               0x3F00
 159 #define I2O_SCSI_DSC_QUEUE_FROZEN           0x4000
 160
 161
 162 #ifndef TRUE
 163 #define TRUE                  1
 164 #define FALSE                 0
 165 #endif
 166
 167 #define HBA_FLAGS_INSTALLED_B       0x00000001  // Adapter Was Installed
 168 #define HBA_FLAGS_BLINKLED_B        0x00000002  // Adapter In Blink LED State
 169 #define HBA_FLAGS_IN_RESET      0x00000040      /* in reset */
 170 #define HBA_HOSTRESET_FAILED    0x00000080      /* adpt_resethost failed */
 171
 172
 173 // Device state flags
 174 #define DPTI_DEV_ONLINE    0x00
 175 #define DPTI_DEV_UNSCANNED 0x01
 176 #define DPTI_DEV_RESET     0x02
 177 #define DPTI_DEV_OFFLINE   0x04
 178
 179
 180 struct adpt_device {
 181         struct adpt_device* next_lun;
 182         u32     flags;
 183         u32     type;
 184         u32     capacity;
 185         u32     block_size;
 186         u8      scsi_channel;
 187         u8      scsi_id;
 188         u8      scsi_lun;
 189         u8      state;
 190         u16     tid;
 191         struct i2o_device* pI2o_dev;
 192         struct scsi_device *pScsi_dev;
 193 };
 194
 195 struct adpt_channel {
 196         struct adpt_device* device[MAX_ID];     /* used as an array of 128 scsi ids */
 197         u8      scsi_id;
 198         u8      type;
 199         u16     tid;
 200         u32     state;
 201         struct i2o_device* pI2o_dev;
 202 };
 203
 204 // HBA state flags
 205 #define DPTI_STATE_RESET        (0x01)
 206 #define DPTI_STATE_IOCTL        (0x02)
 207
 208 typedef struct _adpt_hba {
 209         struct _adpt_hba *next;
 210         struct pci_dev *pDev;
 211         struct Scsi_Host *host;
 212         u32 state;
 213         spinlock_t state_lock;
 214         int unit;
 215         int host_no;            /* SCSI host number */
 216         u8 initialized;
 217         u8 in_use;              /* is the management node open*/
 218
 219         char name[32];
 220         char detail[55];
 221
 222         void __iomem *base_addr_virt;
 223         void __iomem *msg_addr_virt;
 224         ulong base_addr_phys;
 225         void __iomem *post_port;
 226         void __iomem *reply_port;
 227         void __iomem *irq_mask;
 228         u16  post_count;
 229         u32  post_fifo_size;
 230         u32  reply_fifo_size;
 231         u32* reply_pool;
 232         u32  sg_tablesize;      // Scatter/Gather List Size.
 233         u8  top_scsi_channel;
 234         u8  top_scsi_id;
 235         u8  top_scsi_lun;
 236
 237         i2o_status_block* status_block;
 238         i2o_hrt* hrt;
 239         i2o_lct* lct;
 240         uint lct_size;
 241         struct i2o_device* devices;
 242         struct adpt_channel channel[MAX_CHANNEL];
 243         struct proc_dir_entry* proc_entry;      /* /proc dir */
 244
 245         void __iomem *FwDebugBuffer_P;  // Virtual Address Of FW Debug Buffer
 246         u32   FwDebugBufferSize;        // FW Debug Buffer Size In Bytes
 247         void __iomem *FwDebugStrLength_P;// Virtual Addr Of FW Debug String Len
 248         void __iomem *FwDebugFlags_P;   // Virtual Address Of FW Debug Flags
 249         void __iomem *FwDebugBLEDflag_P;// Virtual Addr Of FW Debug BLED
 250         void __iomem *FwDebugBLEDvalue_P;// Virtual Addr Of FW Debug BLED
 251         u32 FwDebugFlags;
 252 } adpt_hba;
 253
 254 struct sg_simple_element {
 255    u32  flag_count;
 256    u32 addr_bus;
 257 };
 258
 259 /*
 260  * Function Prototypes
 261  */
 262
 263 static void adpt_i2o_sys_shutdown(void);
 264 static int adpt_init(void);
 265 static int adpt_i2o_build_sys_table(void);
 266 static irqreturn_t adpt_isr(int irq, void *dev_id, struct pt_regs *regs);
 267 #ifdef REBOOT_NOTIFIER
 268 static int adpt_reboot_event(struct notifier_block *n, ulong code, void *p);
 269 #endif
 270
 271 static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d);
 272 static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid,
 273                         int group, int field, void *buf, int buflen);
 274 #ifdef DEBUG
 275 static const char *adpt_i2o_get_class_name(int class);
 276 #endif
 277 static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
 278                   void *opblk, int oplen, void *resblk, int reslen);
 279 static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout);
 280 static int adpt_i2o_lct_get(adpt_hba* pHba);
 281 static int adpt_i2o_parse_lct(adpt_hba* pHba);
 282 static int adpt_i2o_activate_hba(adpt_hba* pHba);
 283 static int adpt_i2o_enable_hba(adpt_hba* pHba);
 284 static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d);
 285 static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len);
 286 static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba);
 287 static s32 adpt_i2o_status_get(adpt_hba* pHba);
 288 static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba);
 289 static s32 adpt_i2o_hrt_get(adpt_hba* pHba);
 290 static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* dptdevice);
 291 static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd);
 292 static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht);
 293 static s32 adpt_hba_reset(adpt_hba* pHba);
 294 static s32 adpt_i2o_reset_hba(adpt_hba* pHba);
 295 static s32 adpt_rescan(adpt_hba* pHba);
 296 static s32 adpt_i2o_reparse_lct(adpt_hba* pHba);
 297 static s32 adpt_send_nop(adpt_hba*pHba,u32 m);
 298 static void adpt_i2o_delete_hba(adpt_hba* pHba);
 299 static void adpt_inquiry(adpt_hba* pHba);
 300 static void adpt_fail_posted_scbs(adpt_hba* pHba);
 301 static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun);
 302 static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) ;
 303 static int adpt_i2o_online_hba(adpt_hba* pHba);
 304 static void adpt_i2o_post_wait_complete(u32, int);
 305 static int adpt_i2o_systab_send(adpt_hba* pHba);
 306
 307 static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg);
 308 static int adpt_open(struct inode *inode, struct file *file);
 309 static int adpt_close(struct inode *inode, struct file *file);
 310
 311
 312 #ifdef UARTDELAY
 313 static void adpt_delay(int millisec);
 314 #endif
 315
 316 #if defined __ia64__
 317 static void adpt_ia64_info(sysInfo_S* si);
 318 #endif
 319 #if defined __sparc__
 320 static void adpt_sparc_info(sysInfo_S* si);
 321 #endif
 322 #if defined __alpha__
 323 static void adpt_sparc_info(sysInfo_S* si);
 324 #endif
 325 #if defined __i386__
 326 static void adpt_i386_info(sysInfo_S* si);
 327 #endif
 328
 329 #define PRINT_BUFFER_SIZE     512
 330
 331 #define HBA_FLAGS_DBG_FLAGS_MASK         0xffff0000     // Mask for debug flags
 332 #define HBA_FLAGS_DBG_KERNEL_PRINT_B     0x00010000     // Kernel Debugger Print
 333 #define HBA_FLAGS_DBG_FW_PRINT_B         0x00020000     // Firmware Debugger Print
 334 #define HBA_FLAGS_DBG_FUNCTION_ENTRY_B   0x00040000     // Function Entry Point
 335 #define HBA_FLAGS_DBG_FUNCTION_EXIT_B    0x00080000     // Function Exit
 336 #define HBA_FLAGS_DBG_ERROR_B            0x00100000     // Error Conditions
 337 #define HBA_FLAGS_DBG_INIT_B             0x00200000     // Init Prints
 338 #define HBA_FLAGS_DBG_OS_COMMANDS_B      0x00400000     // OS Command Info
 339 #define HBA_FLAGS_DBG_SCAN_B             0x00800000     // Device Scan
 340
 341 #define FW_DEBUG_STR_LENGTH_OFFSET 0
 342 #define FW_DEBUG_FLAGS_OFFSET      4
 343 #define FW_DEBUG_BLED_OFFSET       8
 344
 345 #define FW_DEBUG_FLAGS_NO_HEADERS_B    0x01
 346 #endif                          /* !HOSTS_C */
 347 #endif                          /* _DPT_H */