libublk: prepare for supporting BPF

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
ublk-org · Aug 20, 2024 · a804d4b · a804d4b
1 parent 050b596
commit a804d4b
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/src/ctrl.rs b/src/ctrl.rs
@@ -943,7 +943,8 @@ impl UblkCtrl {
         | sys::UBLK_F_UNPRIVILEGED_DEV
         | sys::UBLK_F_CMD_IOCTL_ENCODE
         | sys::UBLK_F_USER_COPY
-        | sys::UBLK_F_ZONED) as u64;
+        | sys::UBLK_F_ZONED
+        | sys::UBLK_F_BPF) as u64;
 
     fn get_inner(&self) -> std::sync::RwLockReadGuard<UblkCtrlInner> {
         self.inner.read().unwrap()

diff --git a/ublk_cmd.h b/ublk_cmd.h
@@ -184,6 +184,9 @@
  */
 #define UBLK_F_ZONED (1ULL << 8)
 
+/* ublk IO is handled by bpf prog */
+#define UBLK_F_BPF             (1UL << 9)
+
 /* device state */
 #define UBLK_S_DEV_DEAD	0
 #define UBLK_S_DEV_LIVE	1