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| author |   Matt Turner <matt.turner@intel.com> | 2017-11-14 15:51:33 -0800 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-01-24 12:27:48 -0800 |
| commit | 8299b006d743084c6f47210e5a6670f263b057df (patch) | |
| tree | 6b12d7ea6fca00483778208d5ac31511955fd8fc /drivers/net/ethernet/intel/e1000e/netdev.c | |
| parent | igb: Clarify idleslope config constraints (diff) | |
| download | linux-dev-8299b006d743084c6f47210e5a6670f263b057df.tar.xz linux-dev-8299b006d743084c6f47210e5a6670f263b057df.zip | |
e1000e: Alert the user that C-states will be disabled by enabling jumbo frames
I personally spent a long time trying to decypher why my CPU would not
reach deeper C-states. Let's just tell the next user what's going on.
Signed-off-by: Matt Turner <matt.turner@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 5af93ce5acc6..1298b69f990b 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3306,6 +3306,8 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) ew32(RXDCTL(0), rxdctl | 0x3 | BIT(8)); } + dev_info(&adapter->pdev->dev, + "Some CPU C-states have been disabled in order to enable jumbo frames\n"); pm_qos_update_request(&adapter->pm_qos_req, lat); } else { pm_qos_update_request(&adapter->pm_qos_req, |