Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/mst/vhost

Pull vdpa fixes from Michael Tsirkin:
 "Fixes in mlx5 and pds drivers"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  pds_vdpa: set features order
  pds_vdpa: clear config callback when status goes to 0
  pds_vdpa: fix up format-truncation complaint
  vdpa/mlx5: preserve CVQ vringh index

drivers/vdpa/mlx5/net/mlx5_vnet.c

@@ -2815,13 +2815,18 @@ static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev)
 	struct mlx5_control_vq *cvq = &mvdev->cvq;
 	int err = 0;
 
-	if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ))
+	if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)) {
+		u16 idx = cvq->vring.last_avail_idx;
+
 		err = vringh_init_iotlb(&cvq->vring, mvdev->actual_features,
 					MLX5_CVQ_MAX_ENT, false,
 					(struct vring_desc *)(uintptr_t)cvq->desc_addr,
 					(struct vring_avail *)(uintptr_t)cvq->driver_addr,
 					(struct vring_used *)(uintptr_t)cvq->device_addr);
 
+		if (!err)
+			cvq->vring.last_avail_idx = cvq->vring.last_used_idx = idx;
+	}
 	return err;
 }
 

drivers/vdpa/pds/debugfs.c

@@ -261,7 +261,7 @@ void pds_vdpa_debugfs_add_vdpadev(struct pds_vdpa_aux *vdpa_aux)
 	debugfs_create_file("config", 0400, vdpa_aux->dentry, vdpa_aux->pdsv, &config_fops);
 
 	for (i = 0; i < vdpa_aux->pdsv->num_vqs; i++) {
-		char name[8];
+		char name[16];
 
 		snprintf(name, sizeof(name), "vq%02d", i);
 		debugfs_create_file(name, 0400, vdpa_aux->dentry,

drivers/vdpa/pds/vdpa_dev.c

@@ -318,9 +318,8 @@ static int pds_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 featur
 		return -EOPNOTSUPP;
 	}
 
-	pdsv->negotiated_features = nego_features;
-
 	driver_features = pds_vdpa_get_driver_features(vdpa_dev);
+	pdsv->negotiated_features = nego_features;
 	dev_dbg(dev, "%s: %#llx => %#llx\n",
 		__func__, driver_features, nego_features);
 
@@ -461,8 +460,10 @@ static void pds_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status)
 
 	pds_vdpa_cmd_set_status(pdsv, status);
 
-	/* Note: still working with FW on the need for this reset cmd */
 	if (status == 0) {
+		struct vdpa_callback null_cb = { };
+
+		pds_vdpa_set_config_cb(vdpa_dev, &null_cb);
 		pds_vdpa_cmd_reset(pdsv);
 
 		for (i = 0; i < pdsv->num_vqs; i++) {