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| author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2011-01-06 20:48:29 (GMT) |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-01-24 17:30:43 (GMT) |
| commit | 02ec19c82e87e3748d326ca5e15e7ddb18c73476 (patch) | |
| tree | bec075bdfbe16a1ca5cc4df9ada03ef9a14a01b5 /drivers/scsi/hpsa.c | |
| parent | 6eaf46fdc719991a3ccda1e14b274e9adb515978 (diff) | |
| download | linux-fsl-qoriq-02ec19c82e87e3748d326ca5e15e7ddb18c73476.tar.xz | |
[SCSI] hpsa: allow driver to put controller in either simple or performant mode
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | drivers/scsi/hpsa.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 4fb62c2..10076f1 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -74,6 +74,10 @@ static int hpsa_allow_any; module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(hpsa_allow_any, "Allow hpsa driver to access unknown HP Smart Array hardware"); +static int hpsa_simple_mode; +module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(hpsa_simple_mode, + "Use 'simple mode' rather than 'performant mode'"); /* define the PCI info for the cards we can control */ static const struct pci_device_id hpsa_pci_device_id[] = { @@ -4038,6 +4042,9 @@ static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h) { u32 trans_support; + if (hpsa_simple_mode) + return; + trans_support = readl(&(h->cfgtable->TransportSupport)); if (!(trans_support & PERFORMANT_MODE)) return; |