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SubjectRe: [PATCH V2 5/6] scsi/hpsa: Disable ASPM
On 11/11/2011 10:14 AM, Matthew Garrett wrote:
> The Windows driver .inf disables ASPM on hpsa devices. Do the same.
>
> Signed-off-by: Matthew Garrett<mjg@redhat.com>
> Cc: scameron@beardog.cce.hp.com
> Cc: iss_storagedev@hp.com
> Cc: linux-scsi@vger.kernel.org
> ---
> drivers/scsi/hpsa.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
> index e76107b..865d452 100644
> --- 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>
> @@ -3922,6 +3923,10 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
> 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");

Acked-by: Mike Miller <mike.miller@hp.com>


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