Re: SCSI luns

[Amrut Joshi <amrut.joshi@gmail.com>]

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Hi,

On 7/12/05, Arjan van de Ven <arjan@infradead.org> wrote:
> On Tue, 2005-07-12 at 16:52 +0530, Amrut Joshi wrote:
> > Hi,
> >
> > Currently linux scsi subsystem doesnt store the 8-byte luns which are
> > recieved in REPORT_LUNS reply. This information is forver lost once
> > the scan is over. In my LDD  I need this information. Currently I have
> > to snoop REPORT_LUNS reply, do scsilun_to_int for all the luns and
> 
> which LDD is this? Is it ready for merging into the linux kernel yet?
> 

It will be ready for submission in a couple of months. The design (and
implementation) would be simplified if these changes are accepted. Any
thoughts?

Sorry for the garbled patch. Attaching it again. 

Please CC me on the replies.

Thanks,
-Amrut!

[-- Attachment #2: patch --]
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--- drivers/scsi/scsi_scan.c.orig	2005-06-30 04:30:53.000000000 +0530
+++ drivers/scsi/scsi_scan.c	2005-07-12 16:19:48.533788528 +0530
@@ -1170,6 +1170,7 @@
 				       " aborted\n", devname, lun);
 				break;
 			}
+                        memcpy(sdev->lun_address, lunp, sizeof(sdev->lun_address));
 		}
 	}
 
--- include/scsi/scsi_device.h.orig	2005-06-30 04:30:53.000000000 +0530
+++ include/scsi/scsi_device.h	2005-07-12 16:19:48.534788376 +0530
@@ -58,6 +58,8 @@
 					   could all be from the same event. */
 
 	unsigned int id, lun, channel;
+        struct scsi_lun lun_address;    /* scsi address returned by REPORT_LUNS
+                                         * usable only if sdev->scsi_lun >= SCSI_3 */
 
 	unsigned int manufacturer;	/* Manufacturer of device, for using 
 					 * vendor-specific cmd's */