diff options
| author | Cong Meng <mc@linux.vnet.ibm.com> | 2012-07-05 17:06:43 +0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-07-20 08:58:58 +0100 |
| commit | 365a7150094114a0f8ef0b6164e6b04b519039e8 (patch) | |
| tree | dbe3630391256c1771de226d4d74d2ce5ab50ab6 /include/linux/virtio_scsi.h | |
| parent | 2bd37f0fde99cbf8b78fb55f1128e8c3a63cf1da (diff) | |
[SCSI] virtio-scsi: hotplug support for virtio-scsi
This patch implements the hotplug support for virtio-scsi.
When there is a device attached/detached, the virtio-scsi driver will be
signaled via event virtual queue and it will add/remove the scsi device
in question automatically.
Signed-off-by: Sen Wang <senwang@linux.vnet.ibm.com>
Signed-off-by: Cong Meng <mc@linux.vnet.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/linux/virtio_scsi.h')
| -rw-r--r-- | include/linux/virtio_scsi.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index 8ddeafdc054..dc8d305b0e0 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -69,6 +69,10 @@ struct virtio_scsi_config { u32 max_lun; } __packed; +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 + /* Response codes */ #define VIRTIO_SCSI_S_OK 0 #define VIRTIO_SCSI_S_OVERRUN 1 @@ -105,6 +109,11 @@ struct virtio_scsi_config { #define VIRTIO_SCSI_T_TRANSPORT_RESET 1 #define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 +/* Reasons of transport reset event */ +#define VIRTIO_SCSI_EVT_RESET_HARD 0 +#define VIRTIO_SCSI_EVT_RESET_RESCAN 1 +#define VIRTIO_SCSI_EVT_RESET_REMOVED 2 + #define VIRTIO_SCSI_S_SIMPLE 0 #define VIRTIO_SCSI_S_ORDERED 1 #define VIRTIO_SCSI_S_HEAD 2 |