[SCSI] aacraid: respond automatically to volumes added by config tool

Problem description:
--------------------

When the JBOD is created from the OS using Adaptec Storage Manager
utility device is not available under FDISK until a system restart is
done.

Solution:
---------

AIF handling: If there is a JBOD drive added to the system, identify
the old one with scsi_device_lookup() and remove it to enable a fresh
scsi_add_device(); else the new JBOD is not available until reboot.

Signed-off-by: Mahesh Rajashekhara <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 94d2954d79ae..69692b050e3c 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -966,6 +966,16 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
                         device_config_needed =
                           (((__le32 *)aifcmd->data)[0] ==
                             cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE;
+                        if (device_config_needed == ADD) {
+                                device = scsi_device_lookup(dev->scsi_host_ptr,
+                                        channel,
+                                        id,
+                                        lun);
+                                if (device) {
+                                        scsi_remove_device(device);
+                                        scsi_device_put(device);
+                                }
+                        }
                         break;
 
                 case AifEnEnclosureManagement: