Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-11-14

This series contains updates to i40e and virtchnl.

Lance Roy updates i40e to use lockdep_assert_held() instead of
spin_is_locked(), since it is better suited to check locking
requirements.

Jan improves the code readability in XDP by adding the use of a local
variable.  Provides protection on methods that create/modify/destroy
VF's via locking mechanism to prevent unstable behaviour and potential
kernel panics.

Krzysztof adds a hardware capability flag to indicate whether firmware
supports stopping the LLDP agent.

Patryk replaces the use of strncpy() with strlcpy() to ensure the buffer
is NULL terminated.

Mitch fixes the issue of trying to start nway on devices that do not
support auto-negotiation, by checking the autoneg state before
attempting to restart nway.

Alice updates virtchnl to keep the checks all together for ease of
readability and consistency.  Also fixed a "off by one" error in the
number of traffic classes being calculated.

Richard fixed VF port VLANs, where the priority bits were incorrectly
set because the incorrect shift and mask bits were being used.

Alan adds a bit to set and check if a timeout recovery is already
pending to prevent overlapping transmit timeout recovery.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -122,6 +122,7 @@ enum i40e_state_t {
 	__I40E_MDD_EVENT_PENDING,
 	__I40E_VFLR_EVENT_PENDING,
 	__I40E_RESET_RECOVERY_PENDING,
+	__I40E_TIMEOUT_RECOVERY_PENDING,
 	__I40E_MISC_IRQ_REQUESTED,
 	__I40E_RESET_INTR_RECEIVED,
 	__I40E_REINIT_REQUESTED,
@@ -146,6 +147,7 @@ enum i40e_state_t {
 	__I40E_CLIENT_SERVICE_REQUESTED,
 	__I40E_CLIENT_L2_CHANGE,
 	__I40E_CLIENT_RESET,
+	__I40E_VIRTCHNL_OP_PENDING,
 	/* This must be last as it determines the size of the BITMAP */
 	__I40E_STATE_SIZE__,
 };
@@ -494,7 +496,6 @@ struct i40e_pf {
 #define I40E_HW_STOP_FW_LLDP			BIT(16)
 #define I40E_HW_PORT_ID_VALID			BIT(17)
 #define I40E_HW_RESTART_AUTONEG			BIT(18)
-#define I40E_HW_STOPPABLE_FW_LLDP		BIT(19)
 
 	u32 flags;
 #define I40E_FLAG_RX_CSUM_ENABLED		BIT(0)

drivers/net/ethernet/intel/i40e/i40e_adminq.c

@@ -588,6 +588,12 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw)
 	    hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR &&
 	    hw->aq.api_min_ver >= I40E_MINOR_VER_GET_LINK_INFO_XL710) {
 		hw->flags |= I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE;
+		hw->flags |= I40E_HW_FLAG_FW_LLDP_STOPPABLE;
+	}
+	if (hw->mac.type == I40E_MAC_X722 &&
+	    hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR &&
+	    hw->aq.api_min_ver >= I40E_MINOR_VER_FW_LLDP_STOPPABLE_X722) {
+		hw->flags |= I40E_HW_FLAG_FW_LLDP_STOPPABLE;
 	}
 
 	/* Newer versions of firmware require lock when reading the NVM */

drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h

@@ -11,7 +11,7 @@
  */
 
 #define I40E_FW_API_VERSION_MAJOR	0x0001
-#define I40E_FW_API_VERSION_MINOR_X722	0x0005
+#define I40E_FW_API_VERSION_MINOR_X722	0x0006
 #define I40E_FW_API_VERSION_MINOR_X710	0x0007
 
 #define I40E_FW_MINOR_VERSION(_h) ((_h)->mac.type == I40E_MAC_XL710 ? \
@@ -20,6 +20,8 @@
 
 /* API version 1.7 implements additional link and PHY-specific APIs  */
 #define I40E_MINOR_VER_GET_LINK_INFO_XL710 0x0007
+/* API version 1.6 for X722 devices adds ability to stop FW LLDP agent */
+#define I40E_MINOR_VER_FW_LLDP_STOPPABLE_X722 0x0006
 
 struct i40e_aq_desc {
 	__le16 flags;

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

@@ -3723,6 +3723,9 @@ i40e_aq_set_dcb_parameters(struct i40e_hw *hw, bool dcb_enable,
 		(struct i40e_aqc_set_dcb_parameters *)&desc.params.raw;
 	i40e_status status;
 
+	if (!(hw->flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE))
+		return I40E_ERR_DEVICE_NOT_SUPPORTED;
+
 	i40e_fill_default_direct_cmd_desc(&desc,
 					  i40e_aqc_opc_set_dcb_parameters);
 

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

@@ -906,6 +906,7 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 		ks->base.speed = SPEED_100;
 		break;
 	default:
+		ks->base.speed = SPEED_UNKNOWN;
 		break;
 	}
 	ks->base.duplex = DUPLEX_FULL;
@@ -1335,6 +1336,7 @@ static int i40e_set_pauseparam(struct net_device *netdev,
 	i40e_status status;
 	u8 aq_failures;
 	int err = 0;
+	u32 is_an;
 
 	/* Changing the port's flow control is not supported if this isn't the
 	 * port's controlling PF
@@ -1347,15 +1349,14 @@ static int i40e_set_pauseparam(struct net_device *netdev,
 	if (vsi != pf->vsi[pf->lan_vsi])
 		return -EOPNOTSUPP;
 
-	if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
-	    AUTONEG_ENABLE : AUTONEG_DISABLE)) {
+	is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
+	if (pause->autoneg != is_an) {
 		netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 		return -EOPNOTSUPP;
 	}
 
 	/* If we have link and don't have autoneg */
-	if (!test_bit(__I40E_DOWN, pf->state) &&
-	    !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
+	if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
 		/* Send message that it might not necessarily work*/
 		netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 	}
@@ -1406,7 +1407,7 @@ static int i40e_set_pauseparam(struct net_device *netdev,
 		err = -EAGAIN;
 	}
 
-	if (!test_bit(__I40E_DOWN, pf->state)) {
+	if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
 		/* Give it a little more time to try to come back */
 		msleep(75);
 		if (!test_bit(__I40E_DOWN, pf->state))
@@ -4660,14 +4661,15 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
 		return -EOPNOTSUPP;
 
 	/* If the driver detected FW LLDP was disabled on init, this flag could
-	 * be set, however we do not support _changing_ the flag if NPAR is
-	 * enabled or FW API version < 1.7.  There are situations where older
-	 * FW versions/NPAR enabled PFs could disable LLDP, however we _must_
-	 * not allow the user to enable/disable LLDP with this flag on
-	 * unsupported FW versions.
+	 * be set, however we do not support _changing_ the flag:
+	 * - on XL710 if NPAR is enabled or FW API version < 1.7
+	 * - on X722 with FW API version < 1.6
+	 * There are situations where older FW versions/NPAR enabled PFs could
+	 * disable LLDP, however we _must_ not allow the user to enable/disable
+	 * LLDP with this flag on unsupported FW versions.
 	 */
 	if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
-		if (!(pf->hw_features & I40E_HW_STOPPABLE_FW_LLDP)) {
+		if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
 			dev_warn(&pf->pdev->dev,
 				 "Device does not support changing FW LLDP\n");
 			return -EOPNOTSUPP;

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

@@ -26,8 +26,8 @@ static const char i40e_driver_string[] =
 #define DRV_KERN "-k"
 
 #define DRV_VERSION_MAJOR 2
-#define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 2
+#define DRV_VERSION_MINOR 7
+#define DRV_VERSION_BUILD 6
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
@@ -338,6 +338,10 @@ static void i40e_tx_timeout(struct net_device *netdev)
 		      (pf->tx_timeout_last_recovery + netdev->watchdog_timeo)))
 		return;   /* don't do any new action before the next timeout */
 
+	/* don't kick off another recovery if one is already pending */
+	if (test_and_set_bit(__I40E_TIMEOUT_RECOVERY_PENDING, pf->state))
+		return;
+
 	if (tx_ring) {
 		head = i40e_get_head(tx_ring);
 		/* Read interrupt register */
@@ -1493,8 +1497,7 @@ int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr)
 	bool found = false;
 	int bkt;
 
-	WARN(!spin_is_locked(&vsi->mac_filter_hash_lock),
-	     "Missing mac_filter_hash_lock\n");
+	lockdep_assert_held(&vsi->mac_filter_hash_lock);
 	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
 		if (ether_addr_equal(macaddr, f->macaddr)) {
 			__i40e_del_filter(vsi, f);
@@ -9632,6 +9635,7 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
 	clear_bit(__I40E_RESET_FAILED, pf->state);
 clear_recovery:
 	clear_bit(__I40E_RESET_RECOVERY_PENDING, pf->state);
+	clear_bit(__I40E_TIMEOUT_RECOVERY_PENDING, pf->state);
 }
 
 /**
@@ -11332,16 +11336,15 @@ static int i40e_sw_init(struct i40e_pf *pf)
 		/* IWARP needs one extra vector for CQP just like MISC.*/
 		pf->num_iwarp_msix = (int)num_online_cpus() + 1;
 	}
-	/* Stopping the FW LLDP engine is only supported on the
-	 * XL710 with a FW ver >= 1.7.  Also, stopping FW LLDP
-	 * engine is not supported if NPAR is functioning on this
-	 * part
+	/* Stopping FW LLDP engine is supported on XL710 and X722
+	 * starting from FW versions determined in i40e_init_adminq.
+	 * Stopping the FW LLDP engine is not supported on XL710
+	 * if NPAR is functioning so unset this hw flag in this case.
 	 */
 	if (pf->hw.mac.type == I40E_MAC_XL710 &&
-	    !pf->hw.func_caps.npar_enable &&
-	    (pf->hw.aq.api_maj_ver > 1 ||
-	     (pf->hw.aq.api_maj_ver == 1 && pf->hw.aq.api_min_ver > 6)))
-		pf->hw_features |= I40E_HW_STOPPABLE_FW_LLDP;
+	    pf->hw.func_caps.npar_enable &&
+	    (pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE))
+		pf->hw.flags &= ~I40E_HW_FLAG_FW_LLDP_STOPPABLE;
 
 #ifdef CONFIG_PCI_IOV
 	if (pf->hw.func_caps.num_vfs && pf->hw.partition_id == 1) {
@@ -14302,23 +14305,23 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 		switch (hw->bus.speed) {
 		case i40e_bus_speed_8000:
-			strncpy(speed, "8.0", PCI_SPEED_SIZE); break;
+			strlcpy(speed, "8.0", PCI_SPEED_SIZE); break;
 		case i40e_bus_speed_5000:
-			strncpy(speed, "5.0", PCI_SPEED_SIZE); break;
+			strlcpy(speed, "5.0", PCI_SPEED_SIZE); break;
 		case i40e_bus_speed_2500:
-			strncpy(speed, "2.5", PCI_SPEED_SIZE); break;
+			strlcpy(speed, "2.5", PCI_SPEED_SIZE); break;
 		default:
 			break;
 		}
 		switch (hw->bus.width) {
 		case i40e_bus_width_pcie_x8:
-			strncpy(width, "8", PCI_WIDTH_SIZE); break;
+			strlcpy(width, "8", PCI_WIDTH_SIZE); break;
 		case i40e_bus_width_pcie_x4:
-			strncpy(width, "4", PCI_WIDTH_SIZE); break;
+			strlcpy(width, "4", PCI_WIDTH_SIZE); break;
 		case i40e_bus_width_pcie_x2:
-			strncpy(width, "2", PCI_WIDTH_SIZE); break;
+			strlcpy(width, "2", PCI_WIDTH_SIZE); break;
 		case i40e_bus_width_pcie_x1:
-			strncpy(width, "1", PCI_WIDTH_SIZE); break;
+			strlcpy(width, "1", PCI_WIDTH_SIZE); break;
 		default:
 			break;
 		}

drivers/net/ethernet/intel/i40e/i40e_ptp.c

@@ -694,7 +694,7 @@ static long i40e_ptp_create_clock(struct i40e_pf *pf)
 	if (!IS_ERR_OR_NULL(pf->ptp_clock))
 		return 0;
 
-	strncpy(pf->ptp_caps.name, i40e_driver_name,
+	strlcpy(pf->ptp_caps.name, i40e_driver_name,
 		sizeof(pf->ptp_caps.name) - 1);
 	pf->ptp_caps.owner = THIS_MODULE;
 	pf->ptp_caps.max_adj = 999999999;

drivers/net/ethernet/intel/i40e/i40e_txrx.c

@@ -3528,6 +3528,7 @@ static int i40e_xmit_xdp_ring(struct xdp_frame *xdpf,
 	u16 i = xdp_ring->next_to_use;
 	struct i40e_tx_buffer *tx_bi;
 	struct i40e_tx_desc *tx_desc;
+	void *data = xdpf->data;
 	u32 size = xdpf->len;
 	dma_addr_t dma;
 
@@ -3535,8 +3536,7 @@ static int i40e_xmit_xdp_ring(struct xdp_frame *xdpf,
 		xdp_ring->tx_stats.tx_busy++;
 		return I40E_XDP_CONSUMED;
 	}
-
-	dma = dma_map_single(xdp_ring->dev, xdpf->data, size, DMA_TO_DEVICE);
+	dma = dma_map_single(xdp_ring->dev, data, size, DMA_TO_DEVICE);
 	if (dma_mapping_error(xdp_ring->dev, dma))
 		return I40E_XDP_CONSUMED;
 

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

@@ -615,6 +615,7 @@ struct i40e_hw {
 #define I40E_HW_FLAG_802_1AD_CAPABLE        BIT_ULL(1)
 #define I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE  BIT_ULL(2)
 #define I40E_HW_FLAG_NVM_READ_REQUIRES_LOCK BIT_ULL(3)
+#define I40E_HW_FLAG_FW_LLDP_STOPPABLE      BIT_ULL(4)
 	u64 flags;
 
 	/* Used in set switch config AQ command */

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

@@ -1112,7 +1112,8 @@ static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
 	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
 		return I40E_ERR_PARAM;
 
-	if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
+	if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
+	    (allmulti || alluni)) {
 		dev_err(&pf->pdev->dev,
 			"Unprivileged VF %d is attempting to configure promiscuous mode\n",
 			vf->vf_id);
@@ -1675,13 +1676,20 @@ static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 {
 	struct i40e_pf *pf = pci_get_drvdata(pdev);
+	int ret = 0;
+
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
 
 	if (num_vfs) {
 		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
 			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
 			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 		}
-		return i40e_pci_sriov_enable(pdev, num_vfs);
+		ret = i40e_pci_sriov_enable(pdev, num_vfs);
+		goto sriov_configure_out;
 	}
 
 	if (!pci_vfs_assigned(pf->pdev)) {
@@ -1690,9 +1698,12 @@ int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 		i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 	} else {
 		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto sriov_configure_out;
 	}
-	return 0;
+sriov_configure_out:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
+	return ret;
 }
 
 /***********************virtual channel routines******************/
@@ -3893,6 +3904,11 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 		goto error_param;
 	}
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	if (is_multicast_ether_addr(mac)) {
 		dev_err(&pf->pdev->dev,
 			"Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
@@ -3941,6 +3957,7 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 	dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
 
 error_param:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -3992,6 +4009,11 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 	struct i40e_vf *vf;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	ret = i40e_validate_vf(pf, vf_id);
 	if (ret)
@@ -4107,6 +4129,7 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 	ret = 0;
 
 error_pvid:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -4128,6 +4151,11 @@ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
 	struct i40e_vf *vf;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	ret = i40e_validate_vf(pf, vf_id);
 	if (ret)
@@ -4154,6 +4182,7 @@ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
 
 	vf->tx_rate = max_tx_rate;
 error:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -4174,6 +4203,11 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
 	struct i40e_vf *vf;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	ret = i40e_validate_vf(pf, vf_id);
 	if (ret)
@@ -4209,6 +4243,7 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
 	ret = 0;
 
 error_param:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -4230,6 +4265,11 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 	int abs_vf_id;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	if (vf_id >= pf->num_alloc_vfs) {
 		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
@@ -4273,6 +4313,7 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 			       0, (u8 *)&pfe, sizeof(pfe), NULL);
 
 error_out:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -4294,6 +4335,11 @@ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
 	struct i40e_vf *vf;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	if (vf_id >= pf->num_alloc_vfs) {
 		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
@@ -4327,6 +4373,7 @@ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
 		ret = -EIO;
 	}
 out:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }
 
@@ -4345,15 +4392,22 @@ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
 	struct i40e_vf *vf;
 	int ret = 0;
 
+	if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
+		dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
+		return -EAGAIN;
+	}
+
 	/* validate the request */
 	if (vf_id >= pf->num_alloc_vfs) {
 		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 
 	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
 		dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 
 	vf = &pf->vf[vf_id];
@@ -4376,5 +4430,6 @@ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
 	}
 
 out:
+	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
 	return ret;
 }

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h

@@ -13,9 +13,9 @@
 #define I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED	3
 #define I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED	10
 
-#define I40E_VLAN_PRIORITY_SHIFT	12
+#define I40E_VLAN_PRIORITY_SHIFT	13
 #define I40E_VLAN_MASK			0xFFF
-#define I40E_PRIORITY_MASK		0x7000
+#define I40E_PRIORITY_MASK		0xE000
 
 /* Various queue ctrls */
 enum i40e_queue_ctrl {

include/linux/avf/virtchnl.h

@@ -171,7 +171,7 @@ struct virtchnl_msg {
 
 VIRTCHNL_CHECK_STRUCT_LEN(20, virtchnl_msg);
 
-/* Message descriptions and data structures.*/
+/* Message descriptions and data structures. */
 
 /* VIRTCHNL_OP_VERSION
  * VF posts its version number to the PF. PF responds with its version number
@@ -342,6 +342,8 @@ struct virtchnl_vsi_queue_config_info {
 	struct virtchnl_queue_pair_info qpair[1];
 };
 
+VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
+
 /* VIRTCHNL_OP_REQUEST_QUEUES
  * VF sends this message to request the PF to allocate additional queues to
  * this VF.  Each VF gets a guaranteed number of queues on init but asking for
@@ -357,8 +359,6 @@ struct virtchnl_vf_res_request {
 	u16 num_queue_pairs;
 };
 
-VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
-
 /* VIRTCHNL_OP_CONFIG_IRQ_MAP
  * VF uses this message to map vectors to queues.
  * The rxq_map and txq_map fields are bitmaps used to indicate which queues
@@ -819,8 +819,8 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
 		if (msglen >= valid_len) {
 			struct virtchnl_tc_info *vti =
 				(struct virtchnl_tc_info *)msg;
-			valid_len += vti->num_tc *
-				sizeof(struct virtchnl_channel_info);
+			valid_len += (vti->num_tc - 1) *
+				     sizeof(struct virtchnl_channel_info);
 			if (vti->num_tc == 0)
 				err_msg_format = true;
 		}