Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-03-27

This series contains updates to i40e and i40evf.

Jesse adds new device IDs to handle the new 20G speed for KR2.

Mitch provides a fix for an issue that shows up as a panic or memory
corruption when the device is brought down while under heavy stress.
This is resolved by delaying the releasing of resources until we
receive acknowledgment from the PF driver that the rings have indeed
been stopped.  Also adds firmware version information to ethtool
reporting to align with ixgbevf behavior.

Akeem increases the polling loop limiter, sine we found that in
certain circumstances the firmware can take longer to be ready after
a reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/i40e/i40e_common.c

@@ -51,6 +51,7 @@ static i40e_status i40e_set_mac_type(struct i40e_hw *hw)
 		case I40E_DEV_ID_QSFP_B:
 		case I40E_DEV_ID_QSFP_C:
 		case I40E_DEV_ID_10G_BASE_T:
+		case I40E_DEV_ID_20G_KR2:
 			hw->mac.type = I40E_MAC_XL710;
 			break;
 		case I40E_DEV_ID_VF:
@@ -841,6 +842,7 @@ static enum i40e_media_type i40e_get_media_type(struct i40e_hw *hw)
 	case I40E_PHY_TYPE_10GBASE_KX4:
 	case I40E_PHY_TYPE_10GBASE_KR:
 	case I40E_PHY_TYPE_40GBASE_KR4:
+	case I40E_PHY_TYPE_20GBASE_KR2:
 		media = I40E_MEDIA_TYPE_BACKPLANE;
 		break;
 	case I40E_PHY_TYPE_SGMII:
@@ -857,7 +859,7 @@ static enum i40e_media_type i40e_get_media_type(struct i40e_hw *hw)
 }
 
 #define I40E_PF_RESET_WAIT_COUNT_A0	200
-#define I40E_PF_RESET_WAIT_COUNT	110
+#define I40E_PF_RESET_WAIT_COUNT	200
 /**
  * i40e_pf_reset - Reset the PF
  * @hw: pointer to the hardware structure

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

@@ -274,6 +274,12 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 	case I40E_PHY_TYPE_40GBASE_LR4:
 		ecmd->supported = SUPPORTED_40000baseLR4_Full;
 		break;
+	case I40E_PHY_TYPE_20GBASE_KR2:
+		ecmd->supported = SUPPORTED_Autoneg |
+				  SUPPORTED_20000baseKR2_Full;
+		ecmd->advertising = ADVERTISED_Autoneg |
+				    ADVERTISED_20000baseKR2_Full;
+		break;
 	case I40E_PHY_TYPE_10GBASE_KX4:
 		ecmd->supported = SUPPORTED_Autoneg |
 				  SUPPORTED_10000baseKX4_Full;
@@ -353,6 +359,9 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 		/* need a SPEED_40000 in ethtool.h */
 		ethtool_cmd_speed_set(ecmd, 40000);
 		break;
+	case I40E_LINK_SPEED_20GB:
+		ethtool_cmd_speed_set(ecmd, SPEED_20000);
+		break;
 	case I40E_LINK_SPEED_10GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_10000);
 		break;
@@ -418,6 +427,11 @@ static void i40e_get_settings_link_down(struct i40e_hw *hw,
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 			ecmd->advertising |= ADVERTISED_100baseT_Full;
 		break;
+	case I40E_DEV_ID_20G_KR2:
+		/* backplane 20G */
+		ecmd->supported = SUPPORTED_20000baseKR2_Full;
+		ecmd->advertising = ADVERTISED_20000baseKR2_Full;
+		break;
 	default:
 		/* all the rest are 10G/1G */
 		ecmd->supported = SUPPORTED_10000baseT_Full |
@@ -633,6 +647,8 @@ static int i40e_set_settings(struct net_device *netdev,
 	    advertise & ADVERTISED_10000baseKX4_Full ||
 	    advertise & ADVERTISED_10000baseKR_Full)
 		config.link_speed |= I40E_LINK_SPEED_10GB;
+	if (advertise & ADVERTISED_20000baseKR2_Full)
+		config.link_speed |= I40E_LINK_SPEED_20GB;
 	if (advertise & ADVERTISED_40000baseKR4_Full ||
 	    advertise & ADVERTISED_40000baseCR4_Full ||
 	    advertise & ADVERTISED_40000baseSR4_Full ||

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -39,7 +39,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 1
 #define DRV_VERSION_MINOR 2
-#define DRV_VERSION_BUILD 37
+#define DRV_VERSION_BUILD 43
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
@@ -75,6 +75,7 @@ static const struct pci_device_id i40e_pci_tbl[] = {
 	{PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_B), 0},
 	{PCI_VDEVICE(INTEL, I40E_DEV_ID_QSFP_C), 0},
 	{PCI_VDEVICE(INTEL, I40E_DEV_ID_10G_BASE_T), 0},
+	{PCI_VDEVICE(INTEL, I40E_DEV_ID_20G_KR2), 0},
 	/* required last entry */
 	{0, }
 };
@@ -4639,6 +4640,9 @@ static void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
 	case I40E_LINK_SPEED_40GB:
 		strlcpy(speed, "40 Gbps", SPEED_SIZE);
 		break;
+	case I40E_LINK_SPEED_20GB:
+		strncpy(speed, "20 Gbps", SPEED_SIZE);
+		break;
 	case I40E_LINK_SPEED_10GB:
 		strlcpy(speed, "10 Gbps", SPEED_SIZE);
 		break;

drivers/net/ethernet/intel/i40e/i40e_type.h

@@ -44,6 +44,7 @@
 #define I40E_DEV_ID_QSFP_B		0x1584
 #define I40E_DEV_ID_QSFP_C		0x1585
 #define I40E_DEV_ID_10G_BASE_T		0x1586
+#define I40E_DEV_ID_20G_KR2		0x1587
 #define I40E_DEV_ID_VF			0x154C
 #define I40E_DEV_ID_VF_HV		0x1571
 

drivers/net/ethernet/intel/i40evf/i40e_common.c

@@ -51,6 +51,7 @@ i40e_status i40e_set_mac_type(struct i40e_hw *hw)
 		case I40E_DEV_ID_QSFP_B:
 		case I40E_DEV_ID_QSFP_C:
 		case I40E_DEV_ID_10G_BASE_T:
+		case I40E_DEV_ID_20G_KR2:
 			hw->mac.type = I40E_MAC_XL710;
 			break;
 		case I40E_DEV_ID_VF:

drivers/net/ethernet/intel/i40evf/i40e_type.h

@@ -44,7 +44,8 @@
 #define I40E_DEV_ID_QSFP_B		0x1584
 #define I40E_DEV_ID_QSFP_C		0x1585
 #define I40E_DEV_ID_10G_BASE_T		0x1586
-#define I40E_DEV_ID_VF		0x154C
+#define I40E_DEV_ID_20G_KR2		0x1587
+#define I40E_DEV_ID_VF			0x154C
 #define I40E_DEV_ID_VF_HV		0x1571
 
 #define i40e_is_40G_device(d)		((d) == I40E_DEV_ID_QSFP_A  || \

drivers/net/ethernet/intel/i40evf/i40evf.h

@@ -272,6 +272,8 @@ void i40evf_update_stats(struct i40evf_adapter *adapter);
 void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter);
 int i40evf_init_interrupt_scheme(struct i40evf_adapter *adapter);
 void i40evf_irq_enable_queues(struct i40evf_adapter *adapter, u32 mask);
+void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter);
+void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter);
 
 void i40e_napi_add_all(struct i40evf_adapter *adapter);
 void i40e_napi_del_all(struct i40evf_adapter *adapter);

drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c

@@ -209,7 +209,7 @@ static void i40evf_get_drvinfo(struct net_device *netdev,
 
 	strlcpy(drvinfo->driver, i40evf_driver_name, 32);
 	strlcpy(drvinfo->version, i40evf_driver_version, 32);
-
+	strlcpy(drvinfo->fw_version, "N/A", 4);
 	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 }
 

drivers/net/ethernet/intel/i40evf/i40evf_main.c

@@ -28,8 +28,6 @@
 #include "i40e_prototype.h"
 static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter);
 static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter);
-static void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter);
-static void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter);
 static int i40evf_close(struct net_device *netdev);
 
 char i40evf_driver_name[] = "i40evf";
@@ -973,8 +971,10 @@ void i40evf_down(struct i40evf_adapter *adapter)
 				&adapter->crit_section))
 		usleep_range(500, 1000);
 
-	i40evf_irq_disable(adapter);
+	netif_carrier_off(netdev);
+	netif_tx_disable(netdev);
 	i40evf_napi_disable_all(adapter);
+	i40evf_irq_disable(adapter);
 
 	/* remove all MAC filters */
 	list_for_each_entry(f, &adapter->mac_filter_list, list) {
@@ -997,13 +997,7 @@ void i40evf_down(struct i40evf_adapter *adapter)
 		adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
 		adapter->aq_required |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
 	}
-	netif_tx_disable(netdev);
-
-	netif_tx_stop_all_queues(netdev);
 
-	msleep(20);
-
-	netif_carrier_off(netdev);
 	clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
 }
 
@@ -1358,6 +1352,11 @@ static void i40evf_watchdog_task(struct work_struct *work)
 		goto watchdog_done;
 	}
 
+	if (adapter->aq_required & I40EVF_FLAG_AQ_DISABLE_QUEUES) {
+		i40evf_disable_queues(adapter);
+		goto watchdog_done;
+	}
+
 	if (adapter->aq_required & I40EVF_FLAG_AQ_MAP_VECTORS) {
 		i40evf_map_queues(adapter);
 		goto watchdog_done;
@@ -1383,11 +1382,6 @@ static void i40evf_watchdog_task(struct work_struct *work)
 		goto watchdog_done;
 	}
 
-	if (adapter->aq_required & I40EVF_FLAG_AQ_DISABLE_QUEUES) {
-		i40evf_disable_queues(adapter);
-		goto watchdog_done;
-	}
-
 	if (adapter->aq_required & I40EVF_FLAG_AQ_CONFIGURE_QUEUES) {
 		i40evf_configure_queues(adapter);
 		goto watchdog_done;
@@ -1724,7 +1718,7 @@ out:
  *
  * Free all transmit software resources
  **/
-static void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter)
+void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter)
 {
 	int i;
 
@@ -1794,7 +1788,7 @@ static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter)
  *
  * Free all receive software resources
  **/
-static void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter)
+void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter)
 {
 	int i;
 
@@ -1824,7 +1818,7 @@ static int i40evf_open(struct net_device *netdev)
 		dev_err(&adapter->pdev->dev, "Unable to open device due to PF driver failure.\n");
 		return -EIO;
 	}
-	if (adapter->state != __I40EVF_DOWN)
+	if (adapter->state != __I40EVF_DOWN || adapter->aq_required)
 		return -EBUSY;
 
 	/* allocate transmit descriptors */
@@ -1888,9 +1882,6 @@ static int i40evf_close(struct net_device *netdev)
 	adapter->state = __I40EVF_DOWN;
 	i40evf_free_traffic_irqs(adapter);
 
-	i40evf_free_all_tx_resources(adapter);
-	i40evf_free_all_rx_resources(adapter);
-
 	return 0;
 }
 
@@ -2504,6 +2495,8 @@ static void i40evf_remove(struct pci_dev *pdev)
 	iounmap(hw->hw_addr);
 	pci_release_regions(pdev);
 
+	i40evf_free_all_tx_resources(adapter);
+	i40evf_free_all_rx_resources(adapter);
 	i40evf_free_queues(adapter);
 	kfree(adapter->vf_res);
 	/* If we got removed before an up/down sequence, we've got a filter

drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c

@@ -761,6 +761,8 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
 		break;
 	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
 		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
+		i40evf_free_all_tx_resources(adapter);
+		i40evf_free_all_rx_resources(adapter);
 		break;
 	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
 		adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);