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authorJames Bottomley <James.Bottomley@steeleye.com>2005-05-24 12:06:38 -0500
committerJames Bottomley <jejb@mulgrave.(none)>2005-05-26 11:27:53 -0400
commita283bd37d00e92e8874ca6325ae071691d4db388 (patch)
tree4c436d59fc326e3545c575a88b92fd31ace841a5 /drivers/scsi
parent631e8a1398ce4cfef8b30678d51daf0c64313a09 (diff)
[SCSI] Add target alloc/destroy callbacks to the host template
This gives the HBA driver notice when a target is created and destroyed to allow it to manage its own target based allocations accordingly. This is a much reduced verson of the original patch sent in by James.Smart@Emulex.com Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_scan.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 588611568d1..4d273ceb1d0 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;
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