Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 71 insertions, 90 deletions

diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
index 23a58cada4..5e2cfa73f8 100644
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -679,8 +679,6 @@
 /* PCI/PCI-X/PCI-EX Config space */
 #define PCI_HEADER_TYPE_REGISTER     0x0E
 
-#define PCI_HEADER_TYPE_MULTIFUNC    0x80
-
 #define PHY_REVISION_MASK      0xFFFFFFF0
 #define MAX_PHY_REG_ADDRESS    0x1F  /* 5 bit address bus (0-0x1F) */
 #define MAX_PHY_MULTI_PAGE_REG 0xF
diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index dc553c51d7..85da20778e 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -156,7 +156,7 @@ static int e1000_get_link_ksettings(struct net_device *netdev,
 			speed = adapter->link_speed;
 			cmd->base.duplex = adapter->link_duplex - 1;
 		}
-	} else if (!pm_runtime_suspended(netdev->dev.parent)) {
+	} else {
 		u32 status = er32(STATUS);
 
 		if (status & E1000_STATUS_LU) {
@@ -274,16 +274,13 @@ static int e1000_set_link_ksettings(struct net_device *netdev,
 	ethtool_convert_link_mode_to_legacy_u32(&advertising,
 						cmd->link_modes.advertising);
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	/* When SoL/IDER sessions are active, autoneg/speed/duplex
 	 * cannot be changed
 	 */
 	if (hw->phy.ops.check_reset_block &&
 	    hw->phy.ops.check_reset_block(hw)) {
 		e_err("Cannot change link characteristics when SoL/IDER is active.\n");
-		ret_val = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	/* MDI setting is only allowed when autoneg enabled because
@@ -291,16 +288,13 @@ static int e1000_set_link_ksettings(struct net_device *netdev,
 	 * duplex is forced.
 	 */
 	if (cmd->base.eth_tp_mdix_ctrl) {
-		if (hw->phy.media_type != e1000_media_type_copper) {
-			ret_val = -EOPNOTSUPP;
-			goto out;
-		}
+		if (hw->phy.media_type != e1000_media_type_copper)
+			return -EOPNOTSUPP;
 
 		if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 		    (cmd->base.autoneg != AUTONEG_ENABLE)) {
 			e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
-			ret_val = -EINVAL;
-			goto out;
+			return -EINVAL;
 		}
 	}
 
@@ -347,7 +341,6 @@ static int e1000_set_link_ksettings(struct net_device *netdev,
 	}
 
 out:
-	pm_runtime_put_sync(netdev->dev.parent);
 	clear_bit(__E1000_RESETTING, &adapter->state);
 	return ret_val;
 }
@@ -383,8 +376,6 @@ static int e1000_set_pauseparam(struct net_device *netdev,
 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 		usleep_range(1000, 2000);
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 		hw->fc.requested_mode = e1000_fc_default;
 		if (netif_running(adapter->netdev)) {
@@ -417,7 +408,6 @@ static int e1000_set_pauseparam(struct net_device *netdev,
 	}
 
 out:
-	pm_runtime_put_sync(netdev->dev.parent);
 	clear_bit(__E1000_RESETTING, &adapter->state);
 	return retval;
 }
@@ -448,8 +438,6 @@ static void e1000_get_regs(struct net_device *netdev,
 	u32 *regs_buff = p;
 	u16 phy_data;
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 
 	regs->version = (1u << 24) |
@@ -495,8 +483,6 @@ static void e1000_get_regs(struct net_device *netdev,
 	e1e_rphy(hw, MII_STAT1000, &phy_data);
 	regs_buff[24] = (u32)phy_data;	/* phy local receiver status */
 	regs_buff[25] = regs_buff[24];	/* phy remote receiver status */
-
-	pm_runtime_put_sync(netdev->dev.parent);
 }
 
 static int e1000_get_eeprom_len(struct net_device *netdev)
@@ -529,8 +515,6 @@ static int e1000_get_eeprom(struct net_device *netdev,
 	if (!eeprom_buff)
 		return -ENOMEM;
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 		ret_val = e1000_read_nvm(hw, first_word,
 					 last_word - first_word + 1,
@@ -544,8 +528,6 @@ static int e1000_get_eeprom(struct net_device *netdev,
 		}
 	}
 
-	pm_runtime_put_sync(netdev->dev.parent);
-
 	if (ret_val) {
 		/* a read error occurred, throw away the result */
 		memset(eeprom_buff, 0xff, sizeof(u16) *
@@ -595,8 +577,6 @@ static int e1000_set_eeprom(struct net_device *netdev,
 
 	ptr = (void *)eeprom_buff;
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	if (eeprom->offset & 1) {
 		/* need read/modify/write of first changed EEPROM word */
 		/* only the second byte of the word is being modified */
@@ -637,7 +617,6 @@ static int e1000_set_eeprom(struct net_device *netdev,
 		ret_val = e1000e_update_nvm_checksum(hw);
 
 out:
-	pm_runtime_put_sync(netdev->dev.parent);
 	kfree(eeprom_buff);
 	return ret_val;
 }
@@ -733,8 +712,6 @@ static int e1000_set_ringparam(struct net_device *netdev,
 		}
 	}
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	e1000e_down(adapter, true);
 
 	/* We can't just free everything and then setup again, because the
@@ -773,7 +750,6 @@ err_setup_rx:
 		e1000e_free_tx_resources(temp_tx);
 err_setup:
 	e1000e_up(adapter);
-	pm_runtime_put_sync(netdev->dev.parent);
 free_temp:
 	vfree(temp_tx);
 	vfree(temp_rx);
@@ -1816,8 +1792,6 @@ static void e1000_diag_test(struct net_device *netdev,
 	u8 autoneg;
 	bool if_running = netif_running(netdev);
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	set_bit(__E1000_TESTING, &adapter->state);
 
 	if (!if_running) {
@@ -1903,8 +1877,6 @@ static void e1000_diag_test(struct net_device *netdev,
 	}
 
 	msleep_interruptible(4 * 1000);
-
-	pm_runtime_put_sync(netdev->dev.parent);
 }
 
 static void e1000_get_wol(struct net_device *netdev,
@@ -2046,15 +2018,11 @@ static int e1000_set_coalesce(struct net_device *netdev,
 		adapter->itr_setting = adapter->itr & ~3;
 	}
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	if (adapter->itr_setting != 0)
 		e1000e_write_itr(adapter, adapter->itr);
 	else
 		e1000e_write_itr(adapter, 0);
 
-	pm_runtime_put_sync(netdev->dev.parent);
-
 	return 0;
 }
 
@@ -2068,9 +2036,7 @@ static int e1000_nway_reset(struct net_device *netdev)
 	if (!adapter->hw.mac.autoneg)
 		return -EINVAL;
 
-	pm_runtime_get_sync(netdev->dev.parent);
 	e1000e_reinit_locked(adapter);
-	pm_runtime_put_sync(netdev->dev.parent);
 
 	return 0;
 }
@@ -2084,12 +2050,8 @@ static void e1000_get_ethtool_stats(struct net_device *netdev,
 	int i;
 	char *p = NULL;
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	dev_get_stats(netdev, &net_stats);
 
-	pm_runtime_put_sync(netdev->dev.parent);
-
 	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
 		switch (e1000_gstrings_stats[i].type) {
 		case NETDEV_STATS:
@@ -2146,9 +2108,7 @@ static int e1000_get_rxnfc(struct net_device *netdev,
 		struct e1000_hw *hw = &adapter->hw;
 		u32 mrqc;
 
-		pm_runtime_get_sync(netdev->dev.parent);
 		mrqc = er32(MRQC);
-		pm_runtime_put_sync(netdev->dev.parent);
 
 		if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
 			return 0;
@@ -2211,13 +2171,9 @@ static int e1000e_get_eee(struct net_device *netdev, struct ethtool_keee *edata)
 		return -EOPNOTSUPP;
 	}
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	ret_val = hw->phy.ops.acquire(hw);
-	if (ret_val) {
-		pm_runtime_put_sync(netdev->dev.parent);
+	if (ret_val)
 		return -EBUSY;
-	}
 
 	/* EEE Capability */
 	ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
@@ -2257,8 +2213,6 @@ release:
 	if (ret_val)
 		ret_val = -ENODATA;
 
-	pm_runtime_put_sync(netdev->dev.parent);
-
 	return ret_val;
 }
 
@@ -2299,16 +2253,12 @@ static int e1000e_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
 
 	hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
 
-	pm_runtime_get_sync(netdev->dev.parent);
-
 	/* reset the link */
 	if (netif_running(netdev))
 		e1000e_reinit_locked(adapter);
 	else
 		e1000e_reset(adapter);
 
-	pm_runtime_put_sync(netdev->dev.parent);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index f9e94be36e..ce227b56cf 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1109,6 +1109,46 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
 }
 
 /**
+ *  e1000e_force_smbus - Force interfaces to transition to SMBUS mode.
+ *  @hw: pointer to the HW structure
+ *
+ *  Force the MAC and the PHY to SMBUS mode. Assumes semaphore already
+ *  acquired.
+ *
+ * Return: 0 on success, negative errno on failure.
+ **/
+static s32 e1000e_force_smbus(struct e1000_hw *hw)
+{
+	u16 smb_ctrl = 0;
+	u32 ctrl_ext;
+	s32 ret_val;
+
+	/* Switching PHY interface always returns MDI error
+	 * so disable retry mechanism to avoid wasting time
+	 */
+	e1000e_disable_phy_retry(hw);
+
+	/* Force SMBus mode in the PHY */
+	ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &smb_ctrl);
+	if (ret_val) {
+		e1000e_enable_phy_retry(hw);
+		return ret_val;
+	}
+
+	smb_ctrl |= CV_SMB_CTRL_FORCE_SMBUS;
+	e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, smb_ctrl);
+
+	e1000e_enable_phy_retry(hw);
+
+	/* Force SMBus mode in the MAC */
+	ctrl_ext = er32(CTRL_EXT);
+	ctrl_ext |= E1000_CTRL_EXT_FORCE_SMBUS;
+	ew32(CTRL_EXT, ctrl_ext);
+
+	return 0;
+}
+
+/**
  *  e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP
  *  @hw: pointer to the HW structure
  *  @to_sx: boolean indicating a system power state transition to Sx
@@ -1165,6 +1205,14 @@ s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
 	if (ret_val)
 		goto out;
 
+	if (hw->mac.type != e1000_pch_mtp) {
+		ret_val = e1000e_force_smbus(hw);
+		if (ret_val) {
+			e_dbg("Failed to force SMBUS: %d\n", ret_val);
+			goto release;
+		}
+	}
+
 	/* Si workaround for ULP entry flow on i127/rev6 h/w.  Enable
 	 * LPLU and disable Gig speed when entering ULP
 	 */
@@ -1225,6 +1273,13 @@ s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
 	}
 
 release:
+	if (hw->mac.type == e1000_pch_mtp) {
+		ret_val = e1000e_force_smbus(hw);
+		if (ret_val)
+			e_dbg("Failed to force SMBUS over MTL system: %d\n",
+			      ret_val);
+	}
+
 	hw->phy.ops.release(hw);
 out:
 	if (ret_val)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 334f652c60..3cd161c667 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6038,7 +6038,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
 	adapter->max_frame_size = max_frame;
 	netdev_dbg(netdev, "changing MTU from %d to %d\n",
 		   netdev->mtu, new_mtu);
-	netdev->mtu = new_mtu;
+	WRITE_ONCE(netdev->mtu, new_mtu);
 
 	pm_runtime_get_sync(netdev->dev.parent);
 
@@ -6623,7 +6623,6 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
 	struct e1000_hw *hw = &adapter->hw;
 	u32 ctrl, ctrl_ext, rctl, status, wufc;
 	int retval = 0;
-	u16 smb_ctrl;
 
 	/* Runtime suspend should only enable wakeup for link changes */
 	if (runtime)
@@ -6697,23 +6696,6 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
 			if (retval)
 				return retval;
 		}
-
-		/* Force SMBUS to allow WOL */
-		/* Switching PHY interface always returns MDI error
-		 * so disable retry mechanism to avoid wasting time
-		 */
-		e1000e_disable_phy_retry(hw);
-
-		e1e_rphy(hw, CV_SMB_CTRL, &smb_ctrl);
-		smb_ctrl |= CV_SMB_CTRL_FORCE_SMBUS;
-		e1e_wphy(hw, CV_SMB_CTRL, smb_ctrl);
-
-		e1000e_enable_phy_retry(hw);
-
-		/* Force SMBus mode in MAC */
-		ctrl_ext = er32(CTRL_EXT);
-		ctrl_ext |= E1000_CTRL_EXT_FORCE_SMBUS;
-		ew32(CTRL_EXT, ctrl_ext);
 	}
 
 	/* Ensure that the appropriate bits are set in LPI_CTRL
@@ -6968,13 +6950,13 @@ static int __e1000_resume(struct pci_dev *pdev)
 	return 0;
 }
 
-static __maybe_unused int e1000e_pm_prepare(struct device *dev)
+static int e1000e_pm_prepare(struct device *dev)
 {
 	return pm_runtime_suspended(dev) &&
 		pm_suspend_via_firmware();
 }
 
-static __maybe_unused int e1000e_pm_suspend(struct device *dev)
+static int e1000e_pm_suspend(struct device *dev)
 {
 	struct net_device *netdev = pci_get_drvdata(to_pci_dev(dev));
 	struct e1000_adapter *adapter = netdev_priv(netdev);
@@ -6997,7 +6979,7 @@ static __maybe_unused int e1000e_pm_suspend(struct device *dev)
 	return rc;
 }
 
-static __maybe_unused int e1000e_pm_resume(struct device *dev)
+static int e1000e_pm_resume(struct device *dev)
 {
 	struct net_device *netdev = pci_get_drvdata(to_pci_dev(dev));
 	struct e1000_adapter *adapter = netdev_priv(netdev);
@@ -7031,7 +7013,7 @@ static __maybe_unused int e1000e_pm_runtime_idle(struct device *dev)
 	return -EBUSY;
 }
 
-static __maybe_unused int e1000e_pm_runtime_resume(struct device *dev)
+static int e1000e_pm_runtime_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -7050,7 +7032,7 @@ static __maybe_unused int e1000e_pm_runtime_resume(struct device *dev)
 	return rc;
 }
 
-static __maybe_unused int e1000e_pm_runtime_suspend(struct device *dev)
+static int e1000e_pm_runtime_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -7937,8 +7919,7 @@ static const struct pci_device_id e1000_pci_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
 
-static const struct dev_pm_ops e1000_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
+static const struct dev_pm_ops e1000e_pm_ops = {
 	.prepare	= e1000e_pm_prepare,
 	.suspend	= e1000e_pm_suspend,
 	.resume		= e1000e_pm_resume,
@@ -7946,9 +7927,8 @@ static const struct dev_pm_ops e1000_pm_ops = {
 	.thaw		= e1000e_pm_thaw,
 	.poweroff	= e1000e_pm_suspend,
 	.restore	= e1000e_pm_resume,
-#endif
-	SET_RUNTIME_PM_OPS(e1000e_pm_runtime_suspend, e1000e_pm_runtime_resume,
-			   e1000e_pm_runtime_idle)
+	RUNTIME_PM_OPS(e1000e_pm_runtime_suspend, e1000e_pm_runtime_resume,
+		       e1000e_pm_runtime_idle)
 };
 
 /* PCI Device API Driver */
@@ -7957,9 +7937,7 @@ static struct pci_driver e1000_driver = {
 	.id_table = e1000_pci_tbl,
 	.probe    = e1000_probe,
 	.remove   = e1000_remove,
-	.driver   = {
-		.pm = &e1000_pm_ops,
-	},
+	.driver.pm = pm_ptr(&e1000e_pm_ops),
 	.shutdown = e1000_shutdown,
 	.err_handler = &e1000_err_handler
 };