diff options
| -rw-r--r-- | drivers/vdpa/vdpa.c | 17 | ||||
| -rw-r--r-- | include/uapi/linux/vdpa.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index d96dc2ad48aa..3e3c84bd0337 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -985,6 +985,20 @@ vdpa_dev_blk_block_size_config_fill(struct sk_buff *msg, u64 features, return nla_put_u32(msg, VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE, val_u32); } +static int +vdpa_dev_blk_seg_max_config_fill(struct sk_buff *msg, u64 features, + const struct virtio_blk_config *config) +{ + u32 val_u32; + + if ((features & BIT_ULL(VIRTIO_BLK_F_SEG_MAX)) == 0) + return 0; + + val_u32 = __virtio32_to_cpu(true, config->seg_max); + + return nla_put_u32(msg, VDPA_ATTR_DEV_BLK_CFG_SEG_MAX, val_u32); +} + static int vdpa_dev_blk_config_fill(struct vdpa_device *vdev, struct sk_buff *msg) { @@ -1008,6 +1022,9 @@ static int vdpa_dev_blk_config_fill(struct vdpa_device *vdev, if (vdpa_dev_blk_block_size_config_fill(msg, features_device, &config)) return -EMSGSIZE; + if (vdpa_dev_blk_seg_max_config_fill(msg, features_device, &config)) + return -EMSGSIZE; + return 0; } diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index f3baf7ea7d6d..2dc92fca2052 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -59,6 +59,7 @@ enum vdpa_attr { VDPA_ATTR_DEV_BLK_CFG_CAPACITY, /* u64 */ VDPA_ATTR_DEV_BLK_CFG_SEG_SIZE, /* u32 */ VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE, /* u32 */ + VDPA_ATTR_DEV_BLK_CFG_SEG_MAX, /* u32 */ /* new attributes must be added above here */ VDPA_ATTR_MAX, |