[SCSI] advansys: misc reformatting
[safe/jmp/linux-2.6] / drivers / scsi / ide-scsi.c
index 94d1de5..1cc01ac 100644 (file)
@@ -110,6 +110,7 @@ typedef struct ide_scsi_obj {
 } idescsi_scsi_t;
 
 static DEFINE_MUTEX(idescsi_ref_mutex);
+static int idescsi_nocd;                       /* Set by module param to skip cd */
 
 #define ide_scsi_g(disk) \
        container_of((disk)->private_data, struct ide_scsi_obj, driver)
@@ -327,24 +328,22 @@ static int idescsi_check_condition(ide_drive_t *drive, struct request *failed_co
        u8             *buf;
 
        /* stuff a sense request in front of our current request */
-       pc = kmalloc (sizeof (idescsi_pc_t), GFP_ATOMIC);
-       rq = kmalloc (sizeof (struct request), GFP_ATOMIC);
-       buf = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_ATOMIC);
-       if (pc == NULL || rq == NULL || buf == NULL) {
+       pc = kzalloc(sizeof(idescsi_pc_t), GFP_ATOMIC);
+       rq = kmalloc(sizeof(struct request), GFP_ATOMIC);
+       buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_ATOMIC);
+       if (!pc || !rq || !buf) {
                kfree(buf);
                kfree(rq);
                kfree(pc);
                return -ENOMEM;
        }
-       memset (pc, 0, sizeof (idescsi_pc_t));
-       memset (buf, 0, SCSI_SENSE_BUFFERSIZE);
        ide_init_drive_cmd(rq);
        rq->special = (char *) pc;
        pc->rq = rq;
        pc->buffer = buf;
        pc->c[0] = REQUEST_SENSE;
        pc->c[4] = pc->request_transfer = pc->buffer_size = SCSI_SENSE_BUFFERSIZE;
-       rq->flags = REQ_SENSE;
+       rq->cmd_type = REQ_TYPE_SENSE;
        pc->timeout = jiffies + WAIT_READY;
        /* NOTE! Save the failed packet command in "rq->buffer" */
        rq->buffer = (void *) failed_command->special;
@@ -398,12 +397,12 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs)
        int errors = rq->errors;
        unsigned long flags;
 
-       if (!(rq->flags & (REQ_SPECIAL|REQ_SENSE))) {
+       if (!blk_special_request(rq) && !blk_sense_request(rq)) {
                ide_end_request(drive, uptodate, nrsecs);
                return 0;
        }
        ide_end_drive_cmd (drive, 0, 0);
-       if (rq->flags & REQ_SENSE) {
+       if (blk_sense_request(rq)) {
                idescsi_pc_t *opc = (idescsi_pc_t *) rq->buffer;
                if (log) {
                        printk ("ide-scsi: %s: wrap up check %lu, rst = ", drive->name, opc->scsi_cmd->serial_number);
@@ -462,7 +461,7 @@ static inline unsigned long get_timeout(idescsi_pc_t *pc)
 
 static int idescsi_expiry(ide_drive_t *drive)
 {
-       idescsi_scsi_t *scsi = drive->driver_data;
+       idescsi_scsi_t *scsi = drive_to_idescsi(drive);
        idescsi_pc_t   *pc   = scsi->pc;
 
 #if IDESCSI_DEBUG_LOG
@@ -708,11 +707,11 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc)
 static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block)
 {
 #if IDESCSI_DEBUG_LOG
-       printk (KERN_INFO "rq_status: %d, dev: %s, cmd: %x, errors: %d\n",rq->rq_status, rq->rq_disk->disk_name,rq->cmd[0],rq->errors);
+       printk (KERN_INFO "dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,rq->cmd[0],rq->errors);
        printk (KERN_INFO "sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",rq->sector,rq->nr_sectors,rq->current_nr_sectors);
 #endif /* IDESCSI_DEBUG_LOG */
 
-       if (rq->flags & (REQ_SPECIAL|REQ_SENSE)) {
+       if (blk_sense_request(rq) || blk_special_request(rq)) {
                return idescsi_issue_pc (drive, (idescsi_pc_t *) rq->special);
        }
        blk_dump_rq_flags(rq, "ide-scsi: unsup command");
@@ -720,19 +719,23 @@ static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *r
        return ide_stopped;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idescsi_add_settings(ide_drive_t *drive)
 {
        idescsi_scsi_t *scsi = drive_to_idescsi(drive);
 
 /*
- *                     drive   setting name    read/write      ioctl   ioctl           data type       min     max     mul_factor      div_factor      data pointer            set function
+ *                     drive   setting name    read/write      data type       min     max     mul_factor      div_factor      data pointer            set function
  */
-       ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     -1,     -1,             TYPE_INT,       0,      1023,   1,              1,              &drive->bios_cyl,       NULL);
-       ide_add_setting(drive,  "bios_head",    SETTING_RW,     -1,     -1,             TYPE_BYTE,      0,      255,    1,              1,              &drive->bios_head,      NULL);
-       ide_add_setting(drive,  "bios_sect",    SETTING_RW,     -1,     -1,             TYPE_BYTE,      0,      63,     1,              1,              &drive->bios_sect,      NULL);
-       ide_add_setting(drive,  "transform",    SETTING_RW,     -1,     -1,             TYPE_INT,       0,      3,      1,              1,              &scsi->transform,       NULL);
-       ide_add_setting(drive,  "log",          SETTING_RW,     -1,     -1,             TYPE_INT,       0,      1,      1,              1,              &scsi->log,             NULL);
+       ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     TYPE_INT,       0,      1023,   1,              1,              &drive->bios_cyl,       NULL);
+       ide_add_setting(drive,  "bios_head",    SETTING_RW,     TYPE_BYTE,      0,      255,    1,              1,              &drive->bios_head,      NULL);
+       ide_add_setting(drive,  "bios_sect",    SETTING_RW,     TYPE_BYTE,      0,      63,     1,              1,              &drive->bios_sect,      NULL);
+       ide_add_setting(drive,  "transform",    SETTING_RW,     TYPE_INT,       0,      3,      1,              1,              &scsi->transform,       NULL);
+       ide_add_setting(drive,  "log",          SETTING_RW,     TYPE_INT,       0,      1,      1,              1,              &scsi->log,             NULL);
 }
+#else
+static inline void idescsi_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  *     Driver initialization.
@@ -755,7 +758,7 @@ static void ide_scsi_remove(ide_drive_t *drive)
        struct ide_scsi_obj *scsi = scsihost_to_idescsi(scsihost);
        struct gendisk *g = scsi->disk;
 
-       ide_unregister_subdriver(drive, scsi->driver);
+       ide_proc_unregister_driver(drive, scsi->driver);
 
        ide_unregister_region(g);
 
@@ -769,13 +772,11 @@ static void ide_scsi_remove(ide_drive_t *drive)
 
 static int ide_scsi_probe(ide_drive_t *);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static ide_proc_entry_t idescsi_proc[] = {
        { "capacity", S_IFREG|S_IRUGO, proc_ide_read_capacity, NULL },
        { NULL, 0, NULL, NULL }
 };
-#else
-# define idescsi_proc  NULL
 #endif
 
 static ide_driver_t idescsi_driver = {
@@ -789,26 +790,23 @@ static ide_driver_t idescsi_driver = {
        .version                = IDESCSI_VERSION,
        .media                  = ide_scsi,
        .supports_dsc_overlap   = 0,
-       .proc                   = idescsi_proc,
        .do_request             = idescsi_do_request,
        .end_request            = idescsi_end_request,
        .error                  = idescsi_atapi_error,
        .abort                  = idescsi_atapi_abort,
+#ifdef CONFIG_IDE_PROC_FS
+       .proc                   = idescsi_proc,
+#endif
 };
 
 static int idescsi_ide_open(struct inode *inode, struct file *filp)
 {
        struct gendisk *disk = inode->i_bdev->bd_disk;
        struct ide_scsi_obj *scsi;
-       ide_drive_t *drive;
 
        if (!(scsi = ide_scsi_get(disk)))
                return -ENXIO;
 
-       drive = scsi->drive;
-
-       drive->usage++;
-
        return 0;
 }
 
@@ -816,9 +814,6 @@ static int idescsi_ide_release(struct inode *inode, struct file *filp)
 {
        struct gendisk *disk = inode->i_bdev->bd_disk;
        struct ide_scsi_obj *scsi = ide_scsi_g(disk);
-       ide_drive_t *drive = scsi->drive;
-
-       drive->usage--;
 
        ide_scsi_put(scsi);
 
@@ -938,7 +933,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
 
        ide_init_drive_cmd (rq);
        rq->special = (char *) pc;
-       rq->flags = REQ_SPECIAL;
+       rq->cmd_type = REQ_TYPE_SPECIAL;
        spin_unlock_irq(host->host_lock);
        rq->rq_disk = scsi->disk;
        (void) ide_do_drive_cmd (drive, rq, ide_end);
@@ -992,7 +987,7 @@ static int idescsi_eh_abort (struct scsi_cmnd *cmd)
                 */
                printk (KERN_ERR "ide-scsi: cmd aborted!\n");
 
-               if (scsi->pc->rq->flags & REQ_SENSE)
+               if (blk_sense_request(scsi->pc->rq))
                        kfree(scsi->pc->buffer);
                kfree(scsi->pc->rq);
                kfree(scsi->pc);
@@ -1042,7 +1037,7 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd)
        /* kill current request */
        blkdev_dequeue_request(req);
        end_that_request_last(req, 0);
-       if (req->flags & REQ_SENSE)
+       if (blk_sense_request(req))
                kfree(scsi->pc->buffer);
        kfree(scsi->pc);
        scsi->pc = NULL;
@@ -1127,6 +1122,9 @@ static int ide_scsi_probe(ide_drive_t *drive)
                warned = 1;
        }
 
+       if (idescsi_nocd && drive->media == ide_cdrom)
+               return -ENODEV;
+
        if (!strstr("ide-scsi", drive->driver_req) ||
            !drive->present ||
            drive->media == ide_disk ||
@@ -1157,7 +1155,7 @@ static int ide_scsi_probe(ide_drive_t *drive)
        idescsi->host = host;
        idescsi->disk = g;
        g->private_data = &idescsi->driver;
-       ide_register_subdriver(drive, &idescsi_driver);
+       ide_proc_register_driver(drive, &idescsi_driver);
        err = 0;
        idescsi_setup(drive, idescsi);
        g->fops = &idescsi_ops;
@@ -1169,7 +1167,7 @@ static int ide_scsi_probe(ide_drive_t *drive)
        }
        /* fall through on error */
        ide_unregister_region(g);
-       ide_unregister_subdriver(drive, &idescsi_driver);
+       ide_proc_unregister_driver(drive, &idescsi_driver);
 
        put_disk(g);
 out_host_put:
@@ -1187,6 +1185,8 @@ static void __exit exit_idescsi_module(void)
        driver_unregister(&idescsi_driver.gen_driver);
 }
 
+module_param(idescsi_nocd, int, 0600);
+MODULE_PARM_DESC(idescsi_nocd, "Disable handling of CD-ROMs so they may be driven by ide-cd");
 module_init(init_idescsi_module);
 module_exit(exit_idescsi_module);
 MODULE_LICENSE("GPL");