[SCSI] hpsa: eliminate 8 external target limitation
Driver limits SAS external target IDs to range 1-8.
Need to increase limit and clean up overlapping concepts of targets and paths
in the code.
There are several defined constants that control this:
HPSA_MAX_TARGETS_PER_CTLR 16
MAX_MSA2XXX_ENCLOSURES 32
HPSA_MAX_PATHS 8
We can condense this to one constant:
MAX_EXT_TARGETS 32
SAS switches allow for 8 connections, and there is capacity for 4 switches per
enclosure in largest blade enclosure type.
Signed-off-by: Scott Teel <scott.teel@hp.com>
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 516d6e5..8049815 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -122,12 +122,11 @@
};
/* FIXME this is a per controller value (barf!) */
-#define HPSA_MAX_TARGETS_PER_CTLR 16
#define HPSA_MAX_LUN 1024
#define HPSA_MAX_PHYS_LUN 1024
-#define MAX_MSA2XXX_ENCLOSURES 32
+#define MAX_EXT_TARGETS 32
#define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
- MAX_MSA2XXX_ENCLOSURES + 1) /* + 1 is for the controller itself */
+ MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */
/* SCSI-3 Commands */
#pragma pack(1)