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| author | Scott Teel <scott.teel@hp.com> | 2012-01-19 14:01:19 -0600 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 08:08:56 -0600 |
| commit | aca4a5200dc2b0835f5477d6609a05b0401a91f3 (patch) | |
| tree | 46a49905dd72544cc7b2aa608ce072addd1f474c /drivers/scsi/hpsa_cmd.h | |
| parent | 1f310bde4631185d4462dbd544b3fa82513cdb6f (diff) | |
| download | talos-obmc-linux-aca4a5200dc2b0835f5477d6609a05b0401a91f3.tar.gz talos-obmc-linux-aca4a5200dc2b0835f5477d6609a05b0401a91f3.zip | |
[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>
Diffstat (limited to 'drivers/scsi/hpsa_cmd.h')
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 516d6e53c7e6..8049815d8c1e 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -122,12 +122,11 @@ union u64bit { }; /* 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) |
