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List:       linux-scsi
Subject:    [PATCH] 2.4.16 - Fix scanning of luns > 7 on SCSI-3 devices
From:       Michael Clark <michael () metaparadigm ! com>
Date:       2001-11-30 7:43:14
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Hi,

I have a problem with scsi_scan in Linux 2.4.16 not probing SCSI-3 
devices with
luns > 7. (i'm using the qlogic qla2x00 driver).

scan_scsis_single is not setting scsi_level in the Scsi_Device structure 
(it is
set then overwritten with 0 later by memset) so scan_scsis is 
terminating at lun 7.

This patch makes sure scsi_level is set correctly in the Scsi_Device 
structure
after probing so SCSI-3 255 lun probing is supported.

~mc

--- linux/drivers/scsi/scsi_scan.c.orig	Fri Nov 30 13:07:25 2001
+++ linux/drivers/scsi/scsi_scan.c	Fri Nov 30 15:02:11 2001
@@ -500,6 +501,7 @@
  	Scsi_Request * SRpnt;
  	int bflags, type = -1;
  	extern devfs_handle_t scsi_devfs_handle;
+ 
int scsi_level;

  	SDpnt->host = shpnt;
  	SDpnt->id = dev;
@@ -672,6 +674,7 @@
  	    (SDpnt->scsi_level == 1 &&
  	     (scsi_result[3] & 0x0f) == 1))
  		SDpnt->scsi_level++;
+ 
scsi_level = SDpnt->scsi_level; /* save for use later after we memset 
*SDpnt */

  	/*
  	 * Accommodate drivers that want to sleep when they should be in a polling
@@ -749,6 +752,7 @@
  	SDpnt->queue_depth = 1;
  	SDpnt->host = shpnt;
  	SDpnt->online = TRUE;
+ 
SDpnt->scsi_level = scsi_level;

  	/*
  	 * Register the queue for the device.  All I/O requests will come

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