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path: root/drivers/net/ethernet/intel/e1000e/netdev.c
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Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index e386e95102f4..46a38a4d8da5 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3242,18 +3242,23 @@ static void e1000_configure_rx(struct e1000_adapter *adapter)
rxcsum &= ~E1000_RXCSUM_TUOFL;
ew32(RXCSUM, rxcsum);
- if (adapter->hw.mac.type == e1000_pch2lan) {
- /* With jumbo frames, excessive C-state transition
- * latencies result in dropped transactions.
- */
- if (adapter->netdev->mtu > ETH_DATA_LEN) {
+ /* With jumbo frames, excessive C-state transition latencies result
+ * in dropped transactions.
+ */
+ if (adapter->netdev->mtu > ETH_DATA_LEN) {
+ u32 lat =
+ ((er32(PBA) & E1000_PBA_RXA_MASK) * 1024 -
+ adapter->max_frame_size) * 8 / 1000;
+
+ if (adapter->flags & FLAG_IS_ICH) {
u32 rxdctl = er32(RXDCTL(0));
ew32(RXDCTL(0), rxdctl | 0x3);
- pm_qos_update_request(&adapter->netdev->pm_qos_req, 55);
- } else {
- pm_qos_update_request(&adapter->netdev->pm_qos_req,
- PM_QOS_DEFAULT_VALUE);
}
+
+ pm_qos_update_request(&adapter->netdev->pm_qos_req, lat);
+ } else {
+ pm_qos_update_request(&adapter->netdev->pm_qos_req,
+ PM_QOS_DEFAULT_VALUE);
}
/* Enable Receives */
@@ -4281,10 +4286,8 @@ static int e1000_open(struct net_device *netdev)
e1000_update_mng_vlan(adapter);
/* DMA latency requirement to workaround jumbo issue */
- if (adapter->hw.mac.type == e1000_pch2lan)
- pm_qos_add_request(&adapter->netdev->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ pm_qos_add_request(&adapter->netdev->pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
+ PM_QOS_DEFAULT_VALUE);
/* before we allocate an interrupt, we must be ready to handle it.
* Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
@@ -4392,8 +4395,7 @@ static int e1000_close(struct net_device *netdev)
!test_bit(__E1000_TESTING, &adapter->state))
e1000e_release_hw_control(adapter);
- if (adapter->hw.mac.type == e1000_pch2lan)
- pm_qos_remove_request(&adapter->netdev->pm_qos_req);
+ pm_qos_remove_request(&adapter->netdev->pm_qos_req);
pm_runtime_put_sync(&pdev->dev);