1 files changed, 127 insertions, 46 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 08d7edccfb8d..83a34e98bdc7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -154,6 +154,32 @@ void i40e_vc_notify_reset(struct i40e_pf *pf)
 			     (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
 }
 
+#ifdef CONFIG_PCI_IOV
+void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev)
+{
+	u16 vf_id;
+	u16 pos;
+
+	/* Continue only if this is a PF */
+	if (!pdev->is_physfn)
+		return;
+
+	if (!pci_num_vf(pdev))
+		return;
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
+	if (pos) {
+		struct pci_dev *vf_dev = NULL;
+
+		pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
+		while ((vf_dev = pci_get_device(pdev->vendor, vf_id, vf_dev))) {
+			if (vf_dev->is_virtfn && vf_dev->physfn == pdev)
+				pci_restore_msi_state(vf_dev);
+		}
+	}
+}
+#endif /* CONFIG_PCI_IOV */
+
 /**
  * i40e_vc_notify_vf_reset
  * @vf: pointer to the VF structure
@@ -465,8 +491,6 @@ static void i40e_release_rdma_qvlist(struct i40e_vf *vf)
 		u32 v_idx, reg_idx, reg;
 
 		qv_info = &qvlist_info->qv_info[i];
-		if (!qv_info)
-			continue;
 		v_idx = qv_info->v_idx;
 		if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
 			/* Figure out the queue after CEQ and make that the
@@ -474,10 +498,10 @@ static void i40e_release_rdma_qvlist(struct i40e_vf *vf)
 			 */
 			reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
 			reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
-			next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
-					>> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
-			next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
-					>> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
+			next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,
+						 reg);
+			next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,
+						reg);
 
 			reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
 			reg = (next_q_index &
@@ -536,8 +560,6 @@ i40e_config_rdma_qvlist(struct i40e_vf *vf,
 	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
 	for (i = 0; i < qvlist_info->num_vectors; i++) {
 		qv_info = &qvlist_info->qv_info[i];
-		if (!qv_info)
-			continue;
 
 		/* Validate vector id belongs to this vf */
 		if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
@@ -555,10 +577,10 @@ i40e_config_rdma_qvlist(struct i40e_vf *vf,
 		 * queue on top. Also link it with the new queue in CEQCTL.
 		 */
 		reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
-		next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
-				I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
-		next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
-				I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
+		next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
+				       reg);
+		next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
+					reg);
 
 		if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
 			reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
@@ -659,11 +681,9 @@ static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
 
 	/* associate this queue with the PCI VF function */
 	qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
-	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
-		    & I40E_QTX_CTL_PF_INDX_MASK);
-	qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
-		     << I40E_QTX_CTL_VFVM_INDX_SHIFT)
-		    & I40E_QTX_CTL_VFVM_INDX_MASK);
+	qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
+	qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
+			      vf->vf_id + hw->func_caps.vf_base_id);
 	wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
 	i40e_flush(hw);
 
@@ -1808,7 +1828,7 @@ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
 	if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
 		ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
 		if (ret) {
-			pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
+			clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 			pf->num_alloc_vfs = 0;
 			goto err_iov;
 		}
@@ -1919,8 +1939,8 @@ int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 	}
 
 	if (num_vfs) {
-		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
-			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
+		if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
+			set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 			i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
 		}
 		ret = i40e_pci_sriov_enable(pdev, num_vfs);
@@ -1929,7 +1949,7 @@ int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 
 	if (!pci_vfs_assigned(pf->pdev)) {
 		i40e_free_vfs(pf);
-		pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
+		clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 		i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
 	} else {
 		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
@@ -2137,14 +2157,14 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
 	} else {
-		if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
+		if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&
 		    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
 			vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
 		else
 			vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
 	}
 
-	if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
+	if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
 			vfres->vf_cap_flags |=
 				VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
@@ -2153,12 +2173,12 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
 
-	if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
+	if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
 	    (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
 
 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
-		if (pf->flags & I40E_FLAG_MFP_ENABLED) {
+		if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
 			dev_err(&pf->pdev->dev,
 				"VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
 				 vf->vf_id);
@@ -2168,7 +2188,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
 	}
 
-	if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
+	if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {
 		if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
 			vfres->vf_cap_flags |=
 					VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
@@ -2581,6 +2601,14 @@ static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
 	int aq_ret = 0;
 	int i;
 
+	if (vf->is_disabled_from_host) {
+		aq_ret = -EPERM;
+		dev_info(&pf->pdev->dev,
+			 "Admin has disabled VF %d, will not enable queues\n",
+			 vf->vf_id);
+		goto error_param;
+	}
+
 	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
 		aq_ret = -EINVAL;
 		goto error_param;
@@ -2816,6 +2844,24 @@ error_param:
 				      (u8 *)&stats, sizeof(stats));
 }
 
+/**
+ * i40e_can_vf_change_mac
+ * @vf: pointer to the VF info
+ *
+ * Return true if the VF is allowed to change its MAC filters, false otherwise
+ */
+static bool i40e_can_vf_change_mac(struct i40e_vf *vf)
+{
+	/* If the VF MAC address has been set administratively (via the
+	 * ndo_set_vf_mac command), then deny permission to the VF to
+	 * add/delete unicast MAC addresses, unless the VF is trusted
+	 */
+	if (vf->pf_set_mac && !vf->trusted)
+		return false;
+
+	return true;
+}
+
 #define I40E_MAX_MACVLAN_PER_HW 3072
 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW /	\
 	(num_ports))
@@ -2875,8 +2921,8 @@ static inline int i40e_check_vf_permission(struct i40e_vf *vf,
 		 * The VF may request to set the MAC address filter already
 		 * assigned to it so do not return an error in that case.
 		 */
-		if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
-		    !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
+		if (!i40e_can_vf_change_mac(vf) &&
+		    !is_multicast_ether_addr(addr) &&
 		    !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
 			dev_err(&pf->pdev->dev,
 				"VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
@@ -3082,19 +3128,29 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 			ret = -EINVAL;
 			goto error_param;
 		}
-		if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr))
-			was_unimac_deleted = true;
 	}
 	vsi = pf->vsi[vf->lan_vsi_idx];
 
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
 	/* delete addresses from the list */
-	for (i = 0; i < al->num_elements; i++)
+	for (i = 0; i < al->num_elements; i++) {
+		const u8 *addr = al->list[i].addr;
+
+		/* Allow to delete VF primary MAC only if it was not set
+		 * administratively by PF or if VF is trusted.
+		 */
+		if (ether_addr_equal(addr, vf->default_lan_addr.addr) &&
+		    i40e_can_vf_change_mac(vf))
+			was_unimac_deleted = true;
+		else
+			continue;
+
 		if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
 			ret = -EINVAL;
 			spin_unlock_bh(&vsi->mac_filter_hash_lock);
 			goto error_param;
 		}
+	}
 
 	spin_unlock_bh(&vsi->mac_filter_hash_lock);
 
@@ -3521,16 +3577,16 @@ static int i40e_validate_cloud_filter(struct i40e_vf *vf,
 	bool found = false;
 	int bkt;
 
-	if (!tc_filter->action) {
+	if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {
 		dev_info(&pf->pdev->dev,
-			 "VF %d: Currently ADq doesn't support Drop Action\n",
-			 vf->vf_id);
+			 "VF %d: ADQ doesn't support this action (%d)\n",
+			 vf->vf_id, tc_filter->action);
 		goto err;
 	}
 
 	/* action_meta is TC number here to which the filter is applied */
 	if (!tc_filter->action_meta ||
-	    tc_filter->action_meta > I40E_MAX_VF_VSI) {
+	    tc_filter->action_meta > vf->num_tc) {
 		dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
 			 vf->vf_id, tc_filter->action_meta);
 		goto err;
@@ -3844,7 +3900,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = NULL;
 	int aq_ret = 0;
-	int i, ret;
+	int i;
 
 	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = -EINVAL;
@@ -3868,8 +3924,10 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
 	}
 
 	cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
-	if (!cfilter)
-		return -ENOMEM;
+	if (!cfilter) {
+		aq_ret = -ENOMEM;
+		goto err_out;
+	}
 
 	/* parse destination mac address */
 	for (i = 0; i < ETH_ALEN; i++)
@@ -3917,13 +3975,13 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
 
 	/* Adding cloud filter programmed as TC filter */
 	if (tcf.dst_port)
-		ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
+		aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
 	else
-		ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
-	if (ret) {
+		aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
+	if (aq_ret) {
 		dev_err(&pf->pdev->dev,
 			"VF %d: Failed to add cloud filter, err %pe aq_err %s\n",
-			vf->vf_id, ERR_PTR(ret),
+			vf->vf_id, ERR_PTR(aq_ret),
 			i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
 		goto err_free;
 	}
@@ -4673,9 +4731,8 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
 
 	ivi->max_tx_rate = vf->tx_rate;
 	ivi->min_tx_rate = 0;
-	ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
-	ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
-		   I40E_VLAN_PRIORITY_SHIFT;
+	ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK);
+	ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK);
 	if (vf->link_forced == false)
 		ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
 	else if (vf->link_up == true)
@@ -4706,9 +4763,12 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 	struct i40e_link_status *ls = &pf->hw.phy.link_info;
 	struct virtchnl_pf_event pfe;
 	struct i40e_hw *hw = &pf->hw;
+	struct i40e_vsi *vsi;
+	unsigned long q_map;
 	struct i40e_vf *vf;
 	int abs_vf_id;
 	int ret = 0;
+	int tmp;
 
 	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");
@@ -4731,17 +4791,38 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 	switch (link) {
 	case IFLA_VF_LINK_STATE_AUTO:
 		vf->link_forced = false;
+		vf->is_disabled_from_host = false;
+		/* reset needed to reinit VF resources */
+		i40e_vc_reset_vf(vf, true);
 		i40e_set_vf_link_state(vf, &pfe, ls);
 		break;
 	case IFLA_VF_LINK_STATE_ENABLE:
 		vf->link_forced = true;
 		vf->link_up = true;
+		vf->is_disabled_from_host = false;
+		/* reset needed to reinit VF resources */
+		i40e_vc_reset_vf(vf, true);
 		i40e_set_vf_link_state(vf, &pfe, ls);
 		break;
 	case IFLA_VF_LINK_STATE_DISABLE:
 		vf->link_forced = true;
 		vf->link_up = false;
 		i40e_set_vf_link_state(vf, &pfe, ls);
+
+		vsi = pf->vsi[vf->lan_vsi_idx];
+		q_map = BIT(vsi->num_queue_pairs) - 1;
+
+		vf->is_disabled_from_host = true;
+
+		/* Try to stop both Tx&Rx rings even if one of the calls fails
+		 * to ensure we stop the rings even in case of errors.
+		 * If any of them returns with an error then the first
+		 * error that occurred will be returned.
+		 */
+		tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);
+		ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);
+
+		ret = tmp ? tmp : ret;
 		break;
 	default:
 		ret = -EINVAL;
@@ -4841,7 +4922,7 @@ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
 		goto out;
 	}
 
-	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
+	if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
 		dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
 		ret = -EINVAL;
 		goto out;