diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/virtio_blk.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 4f0dbbb3d4a5..2b918e28acaa 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -866,16 +866,12 @@ static int virtblk_probe_zoned_device(struct virtio_device *vdev, return ret; } -static inline bool virtblk_has_zoned_feature(struct virtio_device *vdev) -{ - return virtio_has_feature(vdev, VIRTIO_BLK_F_ZONED); -} - #else /* * Zoned block device support is not configured in this kernel. - * We only need to define a few symbols to avoid compilation errors. + * Host-managed zoned devices can't be supported, but others are + * good to go as regular block devices. */ #define virtblk_report_zones NULL @@ -886,12 +882,16 @@ static inline void virtblk_revalidate_zones(struct virtio_blk *vblk) static inline int virtblk_probe_zoned_device(struct virtio_device *vdev, struct virtio_blk *vblk, struct request_queue *q) { - return -EOPNOTSUPP; -} + u8 model; -static inline bool virtblk_has_zoned_feature(struct virtio_device *vdev) -{ - return false; + virtio_cread(vdev, struct virtio_blk_config, zoned.model, &model); + if (model == VIRTIO_BLK_Z_HM) { + dev_err(&vdev->dev, + "virtio_blk: zoned devices are not supported"); + return -EOPNOTSUPP; + } + + return 0; } #endif /* CONFIG_BLK_DEV_ZONED */ @@ -1577,7 +1577,11 @@ static int virtblk_probe(struct virtio_device *vdev) virtblk_update_capacity(vblk, false); virtio_device_ready(vdev); - if (virtblk_has_zoned_feature(vdev)) { + /* + * All steps that follow use the VQs therefore they need to be + * placed after the virtio_device_ready() call above. + */ + if (virtio_has_feature(vdev, VIRTIO_BLK_F_ZONED)) { err = virtblk_probe_zoned_device(vdev, vblk, q); if (err) goto out_cleanup_disk; @@ -1683,10 +1687,7 @@ static unsigned int features[] = { VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_CONFIG_WCE, VIRTIO_BLK_F_MQ, VIRTIO_BLK_F_DISCARD, VIRTIO_BLK_F_WRITE_ZEROES, - VIRTIO_BLK_F_SECURE_ERASE, -#ifdef CONFIG_BLK_DEV_ZONED - VIRTIO_BLK_F_ZONED, -#endif /* CONFIG_BLK_DEV_ZONED */ + VIRTIO_BLK_F_SECURE_ERASE, VIRTIO_BLK_F_ZONED, }; static struct virtio_driver virtio_blk = { |