From c9d989b4ababe3ec7291b204f365eaadec0afa26 Mon Sep 17 00:00:00 2001 From: Zhu Lingshan Date: Mon, 19 Feb 2024 02:56:02 +0800 Subject: vDPA: report virtio-block topology info to user space This commit allows vDPA reporting topology information of virtio-blk devices to user space, includes: 1) the number of logical blocks per physical block 2) offset of first aligned logical block 3) suggested minimum I/O size in blocks 4) optimal (suggested maximum) I/O size in blocks Signed-off-by: Zhu Lingshan Message-Id: <20240218185606.13509-7-lingshan.zhu@intel.com> Signed-off-by: Michael S. Tsirkin --- include/uapi/linux/vdpa.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 3c8e3c87a864..5cc70614c97a 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -61,6 +61,10 @@ enum vdpa_attr { VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE, /* u32 */ VDPA_ATTR_DEV_BLK_CFG_SEG_MAX, /* u32 */ VDPA_ATTR_DEV_BLK_CFG_NUM_QUEUES, /* u16 */ + VDPA_ATTR_DEV_BLK_CFG_PHY_BLK_EXP, /* u8 */ + VDPA_ATTR_DEV_BLK_CFG_ALIGN_OFFSET, /* u8 */ + VDPA_ATTR_DEV_BLK_CFG_MIN_IO_SIZE, /* u16 */ + VDPA_ATTR_DEV_BLK_CFG_OPT_IO_SIZE, /* u32 */ /* new attributes must be added above here */ VDPA_ATTR_MAX, -- cgit