Messages in this thread Patch in this message | | | From | Matthew Garrett <> | Subject | [PATCH v2 1/2] e1000e: Only disable ASPM on 82573L devices | Date | Thu, 11 Feb 2010 11:29:26 -0500 |
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The 82537 errata and comment in e1000e_disable_l1aspm both agree that only 82537L devices are affected. Limit the L1 disable to them.
Signed-off-by: Matthew Garrett <mjg@redhat.com> --- drivers/net/e1000e/netdev.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 57f149b..27eed81 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4642,6 +4642,10 @@ static void e1000e_disable_l1aspm(struct pci_dev *pdev) * Unfortunately this feature saves about 1W power consumption when * active. */ + + if (pdev->device != E1000_DEV_ID_82573L) + return; + pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &val); if (val & 0x2) { -- 1.6.6.1
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