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authorZhu Lingshan <lingshan.zhu@intel.com>2024-02-19 02:56:03 +0800
committerMichael S. Tsirkin <mst@redhat.com>2024-03-19 02:45:51 -0400
commit65848f46e1d6c01fbd0d79a1c051d978a6e6002e (patch)
tree11a3743ae3e21d384364c45f4bebc39011a49b53 /include/uapi
parentc9d989b4ababe3ec7291b204f365eaadec0afa26 (diff)
vDPA: report virtio-block discarding configuration to user space
This commit reports virtio-blk discarding configuration to user space,includes: 1) the maximum discard sectors 2) maximum number of discard segments for the block driver to use 3) the alignment for splitting a discarding request Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Message-Id: <20240218185606.13509-8-lingshan.zhu@intel.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/vdpa.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h
index 5cc70614c97a..30887931a220 100644
--- a/include/uapi/linux/vdpa.h
+++ b/include/uapi/linux/vdpa.h
@@ -65,6 +65,9 @@ enum vdpa_attr {
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 */
+ VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEC, /* u32 */
+ VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEG, /* u32 */
+ VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,/* u32 */
/* new attributes must be added above here */
VDPA_ATTR_MAX,