From 02ec19c82e87e3748d326ca5e15e7ddb18c73476 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Thu, 6 Jan 2011 14:48:29 -0600 Subject: [SCSI] hpsa: allow driver to put controller in either simple or performant mode Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/scsi/hpsa.c') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 4fb62c2aac05..10076f1868e0 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; -- cgit v1.2.3