Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "Mostly fixes all over the place, a couple of cleanups"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (32 commits)
  virtio_blk: Fix signedness bug in virtblk_prep_rq()
  vdpa_sim_net: should not drop the multicast/broadcast packet
  vdpasim: fix memory leak when freeing IOTLBs
  vdpa: conditionally fill max max queue pair for stats
  vdpa/vp_vdpa: fix kfree a wrong pointer in vp_vdpa_remove
  vduse: Validate vq_num in vduse_validate_config()
  tools/virtio: remove smp_read_barrier_depends()
  tools/virtio: remove stray characters
  vhost_vdpa: fix the crash in unmap a large memory
  virtio: Implementing attribute show with sysfs_emit
  virtio-crypto: fix memory leak in virtio_crypto_alg_skcipher_close_session()
  tools/virtio: Variable type completion
  vdpa_sim: fix vringh initialization in vdpasim_queue_ready()
  virtio_blk: use UINT_MAX instead of -1U
  vhost-vdpa: fix an iotlb memory leak
  vhost: fix range used in translate_desc()
  vringh: fix range used in iotlb_translate()
  vhost/vsock: Fix error handling in vhost_vsock_init()
  vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()
  tools: Delete the unneeded semicolon after curly braces
  ...

1 files changed, 23 insertions, 55 deletions

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 90913365def4..3a6dbbc6440d 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1468,11 +1468,13 @@ static int mlx5_vdpa_add_mac_vlan_rules(struct mlx5_vdpa_net *ndev, u8 *mac,
 	dmac_v = MLX5_ADDR_OF(fte_match_param, headers_v, outer_headers.dmac_47_16);
 	eth_broadcast_addr(dmac_c);
 	ether_addr_copy(dmac_v, mac);
-	MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1);
+	if (ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VLAN)) {
+		MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1);
+		MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, first_vid);
+	}
 	if (tagged) {
 		MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1);
-		MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, first_vid);
-		MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, vid);
+		MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, vid);
 	}
 	flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
 	dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
@@ -1684,7 +1686,7 @@ static virtio_net_ctrl_ack handle_ctrl_mac(struct mlx5_vdpa_dev *mvdev, u8 cmd)
 
 		/* Need recreate the flow table entry, so that the packet could forward back
 		 */
-		mac_vlan_del(ndev, ndev->config.mac, 0, false);
+		mac_vlan_del(ndev, mac_back, 0, false);
 
 		if (mac_vlan_add(ndev, ndev->config.mac, 0, false)) {
 			mlx5_vdpa_warn(mvdev, "failed to insert forward rules, try to restore\n");
@@ -1821,6 +1823,9 @@ static virtio_net_ctrl_ack handle_ctrl_vlan(struct mlx5_vdpa_dev *mvdev, u8 cmd)
 	size_t read;
 	u16 id;
 
+	if (!(ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VLAN)))
+		return status;
+
 	switch (cmd) {
 	case VIRTIO_NET_CTRL_VLAN_ADD:
 		read = vringh_iov_pull_iotlb(&cvq->vring, &cvq->riov, &vlan, sizeof(vlan));
@@ -2389,7 +2394,8 @@ static void restore_channels_info(struct mlx5_vdpa_net *ndev)
 	}
 }
 
-static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb)
+static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
+				struct vhost_iotlb *iotlb, unsigned int asid)
 {
 	struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
 	int err;
@@ -2401,7 +2407,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb
 
 	teardown_driver(ndev);
 	mlx5_vdpa_destroy_mr(mvdev);
-	err = mlx5_vdpa_create_mr(mvdev, iotlb);
+	err = mlx5_vdpa_create_mr(mvdev, iotlb, asid);
 	if (err)
 		goto err_mr;
 
@@ -2582,7 +2588,7 @@ static int mlx5_vdpa_reset(struct vdpa_device *vdev)
 	++mvdev->generation;
 
 	if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
-		if (mlx5_vdpa_create_mr(mvdev, NULL))
+		if (mlx5_vdpa_create_mr(mvdev, NULL, 0))
 			mlx5_vdpa_warn(mvdev, "create MR failed\n");
 	}
 	up_write(&ndev->reslock);
@@ -2618,41 +2624,20 @@ static u32 mlx5_vdpa_get_generation(struct vdpa_device *vdev)
 	return mvdev->generation;
 }
 
-static int set_map_control(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb)
-{
-	u64 start = 0ULL, last = 0ULL - 1;
-	struct vhost_iotlb_map *map;
-	int err = 0;
-
-	spin_lock(&mvdev->cvq.iommu_lock);
-	vhost_iotlb_reset(mvdev->cvq.iotlb);
-
-	for (map = vhost_iotlb_itree_first(iotlb, start, last); map;
-	     map = vhost_iotlb_itree_next(map, start, last)) {
-		err = vhost_iotlb_add_range(mvdev->cvq.iotlb, map->start,
-					    map->last, map->addr, map->perm);
-		if (err)
-			goto out;
-	}
-
-out:
-	spin_unlock(&mvdev->cvq.iommu_lock);
-	return err;
-}
-
-static int set_map_data(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb)
+static int set_map_data(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
+			unsigned int asid)
 {
 	bool change_map;
 	int err;
 
-	err = mlx5_vdpa_handle_set_map(mvdev, iotlb, &change_map);
+	err = mlx5_vdpa_handle_set_map(mvdev, iotlb, &change_map, asid);
 	if (err) {
 		mlx5_vdpa_warn(mvdev, "set map failed(%d)\n", err);
 		return err;
 	}
 
 	if (change_map)
-		err = mlx5_vdpa_change_map(mvdev, iotlb);
+		err = mlx5_vdpa_change_map(mvdev, iotlb, asid);
 
 	return err;
 }
@@ -2665,16 +2650,7 @@ static int mlx5_vdpa_set_map(struct vdpa_device *vdev, unsigned int asid,
 	int err = -EINVAL;
 
 	down_write(&ndev->reslock);
-	if (mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP] == asid) {
-		err = set_map_data(mvdev, iotlb);
-		if (err)
-			goto out;
-	}
-
-	if (mvdev->group2asid[MLX5_VDPA_CVQ_GROUP] == asid)
-		err = set_map_control(mvdev, iotlb);
-
-out:
+	err = set_map_data(mvdev, iotlb, asid);
 	up_write(&ndev->reslock);
 	return err;
 }
@@ -2840,8 +2816,8 @@ static int mlx5_vdpa_suspend(struct vdpa_device *vdev)
 	int i;
 
 	down_write(&ndev->reslock);
-	mlx5_notifier_unregister(mvdev->mdev, &ndev->nb);
 	ndev->nb_registered = false;
+	mlx5_notifier_unregister(mvdev->mdev, &ndev->nb);
 	flush_workqueue(ndev->mvdev.wq);
 	for (i = 0; i < ndev->cur_num_vqs; i++) {
 		mvq = &ndev->vqs[i];
@@ -3019,7 +2995,7 @@ static void update_carrier(struct work_struct *work)
 	else
 		ndev->config.status &= cpu_to_mlx5vdpa16(mvdev, ~VIRTIO_NET_S_LINK_UP);
 
-	if (ndev->config_cb.callback)
+	if (ndev->nb_registered && ndev->config_cb.callback)
 		ndev->config_cb.callback(ndev->config_cb.private);
 
 	kfree(wqent);
@@ -3036,21 +3012,13 @@ static int event_handler(struct notifier_block *nb, unsigned long event, void *p
 		switch (eqe->sub_type) {
 		case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
 		case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
-			down_read(&ndev->reslock);
-			if (!ndev->nb_registered) {
-				up_read(&ndev->reslock);
-				return NOTIFY_DONE;
-			}
 			wqent = kzalloc(sizeof(*wqent), GFP_ATOMIC);
-			if (!wqent) {
-				up_read(&ndev->reslock);
+			if (!wqent)
 				return NOTIFY_DONE;
-			}
 
 			wqent->mvdev = &ndev->mvdev;
 			INIT_WORK(&wqent->work, update_carrier);
 			queue_work(ndev->mvdev.wq, &wqent->work);
-			up_read(&ndev->reslock);
 			ret = NOTIFY_OK;
 			break;
 		default:
@@ -3185,7 +3153,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
 		goto err_mpfs;
 
 	if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
-		err = mlx5_vdpa_create_mr(mvdev, NULL);
+		err = mlx5_vdpa_create_mr(mvdev, NULL, 0);
 		if (err)
 			goto err_res;
 	}
@@ -3237,8 +3205,8 @@ static void mlx5_vdpa_dev_del(struct vdpa_mgmt_dev *v_mdev, struct vdpa_device *
 	struct workqueue_struct *wq;
 
 	if (ndev->nb_registered) {
-		mlx5_notifier_unregister(mvdev->mdev, &ndev->nb);
 		ndev->nb_registered = false;
+		mlx5_notifier_unregister(mvdev->mdev, &ndev->nb);
 	}
 	wq = mvdev->wq;
 	mvdev->wq = NULL;