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[PATCH v5 2/2] ibmvscsi: set max_lun to 32

From Laurent Vivier <lvivier@redhat.com>
Newsgroups linux.kernel
Subject [PATCH v5 2/2] ibmvscsi: set max_lun to 32
Date 2015-11-09 17:50 +0100
Message-ID <qsXNM-tG-23@gated-at.bofh.it> (permalink)
References <qsXNL-tG-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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As defined in 4.6.9 of SAM-4, the encoding of LUN is
on 5 bits (max_lun=32) and the current value is only 8.
Set max_lun to IBMVSCSI_MAX_LUN (32).

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
 drivers/scsi/ibmvscsi/ibmvscsi.c | 2 +-
 drivers/scsi/ibmvscsi/ibmvscsi.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index b153150..adfef9d 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -2289,7 +2289,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 		goto init_pool_failed;
 	}
 
-	host->max_lun = 8;
+	host->max_lun = IBMVSCSI_MAX_LUN;
 	host->max_id = max_id;
 	host->max_channel = max_channel;
 	host->max_cmd_len = 16;
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index 7d64867..1067367 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -48,6 +48,7 @@ struct Scsi_Host;
 #define IBMVSCSI_CMDS_PER_LUN_DEFAULT 16
 #define IBMVSCSI_MAX_SECTORS_DEFAULT 256 /* 32 * 8 = default max I/O 32 pages */
 #define IBMVSCSI_MAX_CMDS_PER_LUN 64
+#define IBMVSCSI_MAX_LUN 32
 
 /* ------------------------------------------------------------
  * Data Structures
-- 
2.1.0

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[PATCH v5 0/2] ibmvscsi parameter cleanup Laurent Vivier <lvivier@redhat.com> - 2015-11-09 17:50 +0100
  [PATCH v5 2/2] ibmvscsi: set max_lun to 32 Laurent Vivier <lvivier@redhat.com> - 2015-11-09 17:50 +0100

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