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-rw-r--r--drivers/net/e1000/e1000_hw.c9
-rw-r--r--drivers/net/e1000/e1000_hw.h2
-rw-r--r--drivers/net/e1000/e1000_main.c128
3 files changed, 77 insertions, 62 deletions
diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index ce82eb52ea95..1ea556ef093b 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -448,6 +448,10 @@ e1000_set_mac_type(struct e1000_hw *hw)
if (hw->mac_type == e1000_82543)
hw->bad_tx_carr_stats_fd = TRUE;
+ /* capable of receiving management packets to the host */
+ if (hw->mac_type >= e1000_82571)
+ hw->has_manc2h = TRUE;
+
return E1000_SUCCESS;
}
@@ -7823,9 +7827,8 @@ e1000_enable_mng_pass_thru(struct e1000_hw *hw)
fwsm = E1000_READ_REG(hw, FWSM);
factps = E1000_READ_REG(hw, FACTPS);
- if (((fwsm & E1000_FWSM_MODE_MASK) ==
- (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)) &&
- (factps & E1000_FACTPS_MNGCG))
+ if ((((fwsm & E1000_FWSM_MODE_MASK) >> E1000_FWSM_MODE_SHIFT) ==
+ e1000_mng_mode_pt) && !(factps & E1000_FACTPS_MNGCG))
return TRUE;
} else
if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN))
diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h
index fef1f7b4845b..18a4ae4549ad 100644
--- a/drivers/net/e1000/e1000_hw.h
+++ b/drivers/net/e1000/e1000_hw.h
@@ -1301,6 +1301,7 @@ struct e1000_ffvt_entry {
#define E1000_82542_RSSIR E1000_RSSIR
#define E1000_82542_KUMCTRLSTA E1000_KUMCTRLSTA
#define E1000_82542_SW_FW_SYNC E1000_SW_FW_SYNC
+#define E1000_82542_MANC2H E1000_MANC2H
/* Statistics counters collected by the MAC */
struct e1000_hw_stats {
@@ -1461,6 +1462,7 @@ struct e1000_hw {
boolean_t leave_av_bit_off;
boolean_t kmrn_lock_loss_workaround_disabled;
boolean_t bad_tx_carr_stats_fd;
+ boolean_t has_manc2h;
};
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 0816de267610..7a51283f4939 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -464,6 +464,52 @@ e1000_get_hw_control(struct e1000_adapter *adapter)
}
}
+static void
+e1000_init_manageability(struct e1000_adapter *adapter)
+{
+ if (adapter->en_mng_pt) {
+ uint32_t manc = E1000_READ_REG(&adapter->hw, MANC);
+
+ /* disable hardware interception of ARP */
+ manc &= ~(E1000_MANC_ARP_EN);
+
+ /* enable receiving management packets to the host */
+ /* this will probably generate destination unreachable messages
+ * from the host OS, but the packets will be handled on SMBUS */
+ if (adapter->hw.has_manc2h) {
+ uint32_t manc2h = E1000_READ_REG(&adapter->hw, MANC2H);
+
+ manc |= E1000_MANC_EN_MNG2HOST;
+#define E1000_MNG2HOST_PORT_623 (1 << 5)
+#define E1000_MNG2HOST_PORT_664 (1 << 6)
+ manc2h |= E1000_MNG2HOST_PORT_623;
+ manc2h |= E1000_MNG2HOST_PORT_664;
+ E1000_WRITE_REG(&adapter->hw, MANC2H, manc2h);
+ }
+
+ E1000_WRITE_REG(&adapter->hw, MANC, manc);
+ }
+}
+
+static void
+e1000_release_manageability(struct e1000_adapter *adapter)
+{
+ if (adapter->en_mng_pt) {
+ uint32_t manc = E1000_READ_REG(&adapter->hw, MANC);
+
+ /* re-enable hardware interception of ARP */
+ manc |= E1000_MANC_ARP_EN;
+
+ if (adapter->hw.has_manc2h)
+ manc &= ~E1000_MANC_EN_MNG2HOST;
+
+ /* don't explicitly have to mess with MANC2H since
+ * MANC has an enable disable that gates MANC2H */
+
+ E1000_WRITE_REG(&adapter->hw, MANC, manc);
+ }
+}
+
int
e1000_up(struct e1000_adapter *adapter)
{
@@ -475,6 +521,7 @@ e1000_up(struct e1000_adapter *adapter)
e1000_set_multi(netdev);
e1000_restore_vlan(adapter);
+ e1000_init_manageability(adapter);
e1000_configure_tx(adapter);
e1000_setup_rctl(adapter);
@@ -614,7 +661,7 @@ e1000_reinit_locked(struct e1000_adapter *adapter)
void
e1000_reset(struct e1000_adapter *adapter)
{
- uint32_t pba, manc;
+ uint32_t pba;
uint16_t fc_high_water_mark = E1000_FC_HIGH_DIFF;
/* Repartition Pba for greater than 9k mtu
@@ -705,14 +752,7 @@ e1000_reset(struct e1000_adapter *adapter)
phy_data);
}
- if ((adapter->en_mng_pt) &&
- (adapter->hw.mac_type >= e1000_82540) &&
- (adapter->hw.mac_type < e1000_82571) &&
- (adapter->hw.media_type == e1000_media_type_copper)) {
- manc = E1000_READ_REG(&adapter->hw, MANC);
- manc |= (E1000_MANC_ARP_EN | E1000_MANC_EN_MNG2HOST);
- E1000_WRITE_REG(&adapter->hw, MANC, manc);
- }
+ e1000_release_manageability(adapter);
}
/**
@@ -1078,22 +1118,13 @@ e1000_remove(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
- uint32_t manc;
#ifdef CONFIG_E1000_NAPI
int i;
#endif
flush_scheduled_work();
- if (adapter->hw.mac_type >= e1000_82540 &&
- adapter->hw.mac_type < e1000_82571 &&
- adapter->hw.media_type == e1000_media_type_copper) {
- manc = E1000_READ_REG(&adapter->hw, MANC);
- if (manc & E1000_MANC_SMBUS_EN) {
- manc |= E1000_MANC_ARP_EN;
- E1000_WRITE_REG(&adapter->hw, MANC, manc);
- }
- }
+ e1000_release_manageability(adapter);
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
@@ -5011,7 +5042,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
- uint32_t ctrl, ctrl_ext, rctl, manc, status;
+ uint32_t ctrl, ctrl_ext, rctl, status;
uint32_t wufc = adapter->wol;
#ifdef CONFIG_PM
int retval = 0;
@@ -5080,16 +5111,12 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
pci_enable_wake(pdev, PCI_D3cold, 0);
}
- if (adapter->hw.mac_type >= e1000_82540 &&
- adapter->hw.mac_type < e1000_82571 &&
- adapter->hw.media_type == e1000_media_type_copper) {
- manc = E1000_READ_REG(&adapter->hw, MANC);
- if (manc & E1000_MANC_SMBUS_EN) {
- manc |= E1000_MANC_ARP_EN;
- E1000_WRITE_REG(&adapter->hw, MANC, manc);
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- }
+ e1000_release_manageability(adapter);
+
+ /* make sure adapter isn't asleep if manageability is enabled */
+ if (adapter->en_mng_pt) {
+ pci_enable_wake(pdev, PCI_D3hot, 1);
+ pci_enable_wake(pdev, PCI_D3cold, 1);
}
if (adapter->hw.phy_type == e1000_phy_igp_3)
@@ -5115,7 +5142,7 @@ e1000_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
- uint32_t manc, err;
+ uint32_t err;
pci_set_power_state(pdev, PCI_D0);
e1000_pci_restore_state(adapter);
@@ -5135,19 +5162,13 @@ e1000_resume(struct pci_dev *pdev)
e1000_reset(adapter);
E1000_WRITE_REG(&adapter->hw, WUS, ~0);
+ e1000_init_manageability(adapter);
+
if (netif_running(netdev))
e1000_up(adapter);
netif_device_attach(netdev);
- if (adapter->hw.mac_type >= e1000_82540 &&
- adapter->hw.mac_type < e1000_82571 &&
- adapter->hw.media_type == e1000_media_type_copper) {
- manc = E1000_READ_REG(&adapter->hw, MANC);
- manc &= ~(E1000_MANC_ARP_EN);
- E1000_WRITE_REG(&adapter->hw, MANC, manc);
- }
-
/* If the controller is 82573 and f/w is AMT, do not set
* DRV_LOAD until the interface is up. For all other cases,
* let the f/w know that the h/w is now under the control
@@ -5248,7 +5269,8 @@ static void e1000_io_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev->priv;
- uint32_t manc, swsm;
+
+ e1000_init_manageability(adapter);
if (netif_running(netdev)) {
if (e1000_up(adapter)) {
@@ -5259,26 +5281,14 @@ static void e1000_io_resume(struct pci_dev *pdev)
netif_device_attach(netdev);
- if (adapter->hw.mac_type >= e1000_82540 &&
- adapter->hw.mac_type < e1000_82571 &&
- adapter->hw.media_type == e1000_media_type_copper) {
- manc = E1000_READ_REG(&adapter->hw, MANC);
- manc &= ~(E1000_MANC_ARP_EN);
- E1000_WRITE_REG(&adapter->hw, MANC, manc);
- }
-
- switch (adapter->hw.mac_type) {
- case e1000_82573:
- swsm = E1000_READ_REG(&adapter->hw, SWSM);
- E1000_WRITE_REG(&adapter->hw, SWSM,
- swsm | E1000_SWSM_DRV_LOAD);
- break;
- default:
- break;
- }
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (adapter->hw.mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(&adapter->hw))
+ e1000_get_hw_control(adapter);
- if (netif_running(netdev))
- mod_timer(&adapter->watchdog_timer, jiffies);
}
/* e1000_main.c */
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