diff options
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 8d0d302844a..2d3c4ac475f 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -293,6 +293,10 @@ static void scsi_target_dev_release(struct device *dev) { struct device *parent = dev->parent; struct scsi_target *starget = to_scsi_target(dev); + struct Scsi_Host *shost = dev_to_shost(parent); + + if (shost->hostt->target_destroy) + shost->hostt->target_destroy(starget); kfree(starget); put_device(parent); } @@ -360,9 +364,23 @@ static struct scsi_target *scsi_alloc_target(struct device *parent, list_add_tail(&starget->siblings, &shost->__targets); spin_unlock_irqrestore(shost->host_lock, flags); /* allocate and add */ - transport_setup_device(&starget->dev); - device_add(&starget->dev); - transport_add_device(&starget->dev); + transport_setup_device(dev); + device_add(dev); + transport_add_device(dev); + if (shost->hostt->target_alloc) { + int error = shost->hostt->target_alloc(starget); + + if(error) { + dev_printk(KERN_ERR, dev, "target allocation failed, error %d\n", error); + /* don't want scsi_target_reap to do the final + * put because it will be under the host lock */ + get_device(dev); + scsi_target_reap(starget); + put_device(dev); + return NULL; + } + } + return starget; found: @@ -625,6 +643,7 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags) case TYPE_MEDIUM_CHANGER: case TYPE_ENCLOSURE: case TYPE_COMM: + case TYPE_RBC: sdev->writeable = 1; break; case TYPE_WORM: @@ -737,7 +756,8 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags) * register it and tell the rest of the kernel * about it. */ - scsi_sysfs_add_sdev(sdev); + if (scsi_sysfs_add_sdev(sdev) != 0) + return SCSI_SCAN_NO_RESPONSE; return SCSI_SCAN_LUN_PRESENT; } @@ -981,6 +1001,38 @@ static int scsilun_to_int(struct scsi_lun *scsilun) } /** + * int_to_scsilun: reverts an int into a scsi_lun + * @int: integer to be reverted + * @scsilun: struct scsi_lun to be set. + * + * Description: + * Reverts the functionality of the scsilun_to_int, which packed + * an 8-byte lun value into an int. This routine unpacks the int + * back into the lun value. + * Note: the scsilun_to_int() routine does not truly handle all + * 8bytes of the lun value. This functions restores only as much + * as was set by the routine. + * + * Notes: + * Given an integer : 0x0b030a04, this function returns a + * scsi_lun of : struct scsi_lun of: 0a 04 0b 03 00 00 00 00 + * + **/ +void int_to_scsilun(unsigned int lun, struct scsi_lun *scsilun) +{ + int i; + + memset(scsilun->scsi_lun, 0, sizeof(scsilun->scsi_lun)); + + for (i = 0; i < sizeof(lun); i += 2) { + scsilun->scsi_lun[i] = (lun >> 8) & 0xFF; + scsilun->scsi_lun[i+1] = lun & 0xFF; + lun = lun >> 16; + } +} +EXPORT_SYMBOL(int_to_scsilun); + +/** * scsi_report_lun_scan - Scan using SCSI REPORT LUN results * @sdevscan: scan the host, channel, and id of this Scsi_Device * |