[RFC PATCH 2/3] virtio_pci: add a definition of queue flag in ISR

From: Shunsuke Mie
Date: Fri Apr 14 2023 - 08:39:28 EST


Already it has beed defined a config changed flag of ISR, but not the queue
flag. Add a macro for it.

Signed-off-by: Shunsuke Mie <mie@xxxxxxxxxx>
---
include/uapi/linux/virtio_pci.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index f703afc7ad31..d405bea27240 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -94,6 +94,9 @@

#endif /* VIRTIO_PCI_NO_LEGACY */

+/* Bits for ISR status field:only when if MSI-X is disabled */
+/* The bit of the ISR which indicates a queue entry update. */
+#define VIRTIO_PCI_ISR_QUEUE 0x1
/* The bit of the ISR which indicates a device configuration change. */
#define VIRTIO_PCI_ISR_CONFIG 0x2
/* Vector value used to disable MSI for queue */
--
2.25.1