e1000e: Disable ASPM L1 on 82574

commit d4a4206ebbaf48b55803a7eb34e330530d83a889 upstream.

ASPM on the 82574 causes trouble. Currently the driver disables L0s for
this NIC but only disables L1 if the MTU is >1500. This patch simply
causes L1 to be disabled regardless of the MTU setting.

Signed-off-by: Chris Boot <bootc@bootc.net>
Cc: "Wyborny, Carolyn" <carolyn.wyborny@intel.com>
Cc: Nix <nix@esperi.org.uk>
Link: https://lkml.org/lkml/2012/3/19/362
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 0d0ee552d95c1169a1b38264c7f232c5d0e6e1a8..8402d19d3d6223718a1ce5c95a9062a05672fd4d 100644 (file)
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -2088,7 +2088,8 @@ struct e1000_info e1000_82574_info = {
                                  | FLAG_HAS_AMT
                                  | FLAG_HAS_CTRLEXT_ON_LOAD,
        .flags2                   = FLAG2_CHECK_PHY_HANG
-                                 | FLAG2_DISABLE_ASPM_L0S,
+                                 | FLAG2_DISABLE_ASPM_L0S
+                                 | FLAG2_DISABLE_ASPM_L1,
        .pba                    = 32,
        .max_hw_frame_size      = DEFAULT_JUMBO,
        .get_variants           = e1000_get_variants_82571,