Messages in this thread Patch in this message | | | Date | Fri, 17 Aug 2012 04:02:56 +0100 | From | Ben Hutchings <> | Subject | [ 13/37] e1000: add dropped DMA receive enable back in for WoL |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Dean Nelson <dnelson@redhat.com>
commit b868179c47e9e8eadcd04c1f3105998e528988a3 upstream.
Commit d5bc77a223b0e9b9dfb002048d2b34a79e7d0b48 broke Wake-on-LAN by inadvertently dropping the enabling of DMA receives.
Restore the enabling of DMA receives for WoL.
This is applicable to 3.1+ stable trees.
Reported-by: Tobias Klausmann <klausman@schwarzvogel.de> Signed-off-by: Dean Nelson <dnelson@redhat.com> Tested-by: Tobias Klausmann <klausman@schwarzvogel.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/net/ethernet/intel/e1000/e1000_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 669ca38..d94d64b 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -4740,12 +4740,14 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) e1000_setup_rctl(adapter); e1000_set_rx_mode(netdev); + rctl = er32(RCTL); + /* turn on all-multi mode if wake on multicast is enabled */ - if (wufc & E1000_WUFC_MC) { - rctl = er32(RCTL); + if (wufc & E1000_WUFC_MC) rctl |= E1000_RCTL_MPE; - ew32(RCTL, rctl); - } + + /* enable receives in the hardware */ + ew32(RCTL, rctl | E1000_RCTL_EN); if (hw->mac_type >= e1000_82540) { ctrl = er32(CTRL);
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