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net/ethernet/jme: disable ASPM 

Based on patch from Matthew Garrett <mjg@redhat.com> (https://lkml.org/lkml/2011/11/11/168).

http://driveragent.com/archive/30421/7-0-14 indicates that ASPM is
disabled on the 250 and 260. Duplicate for sanity.

Fixes random RX engine hangs I experienced with JMC250 on Clevo W270HU.

Signed-off-by: Kevin Baradon <kevin.baradon@gmail.com>
Cc: Guo-Fu Tseng <cooldavid@cooldavid.org>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kevin Baradon 2012-10-10 10:50:49 +00:00 committed by David S. Miller
parent 0d0d0b160c
commit aac9453b65
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/jme.c
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@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pci-aspm.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
@ -2973,6 +2974,9 @@ jme_init_one(struct pci_dev *pdev,
/*
* set up PCI device basics
*/
pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
PCIE_LINK_STATE_CLKPM);
rc = pci_enable_device(pdev);
if (rc) {
pr_err("Cannot enable PCI device\n");