lkml.org 
[lkml]   [2011]   [Nov]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[04/53] [SCSI] hpsa: Disable ASPM
3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthew Garrett <mjg@redhat.com>

commit e5a44df85e8d78e5c2d3d2e4f59b460905691e2f upstream.

The Windows driver .inf disables ASPM on hpsa devices. Do the same because the
selection of a non default ASPM policy can cause the device to hang.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/scsi/hpsa.c | 5 +++++
1 file changed, 5 insertions(+)

--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/pci.h>
+#include <linux/pci-aspm.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -3887,6 +3888,10 @@ static int __devinit hpsa_pci_init(struc
dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
return -ENODEV;
}
+
+ pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
+ PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
+
err = pci_enable_device(h->pdev);
if (err) {
dev_warn(&h->pdev->dev, "unable to enable PCI device\n");



\
 
 \ /
  Last update: 2011-11-23 02:01    [W:0.227 / U:0.424 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site