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| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-10-02 17:25:48 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-09 11:24:47 +0100 |
| commit | 865b58c05b841964f48f574c2027311bd04db8a1 (patch) | |
| tree | 2559fdb2e8b8191caf97900be89758230f394607 /include | |
| parent | 9da5f5ac6affad8dd8cd80f5cca26e4335e1728b (diff) | |
| download | linux-865b58c05b841964f48f574c2027311bd04db8a1.tar.gz | |
[SCSI] virtio-scsi: support online resizing of disks
Support the LUN parameter change event. Currently, the host fires this event when the capacity of a disk is changed from the virtual machine monitor. The resize then appears in the kernel log like this: sd 0:0:0:0: [sda] 46137344 512-byte logical blocks: (23.6 GB/22.0 GIb) sda: detected capacity change from 22548578304 to 23622320128 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/virtio_scsi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h index dc8d305b0e05..d6b4440387b7 100644 --- a/include/linux/virtio_scsi.h +++ b/include/linux/virtio_scsi.h @@ -72,6 +72,7 @@ struct virtio_scsi_config { /* Feature Bits */ #define VIRTIO_SCSI_F_INOUT 0 #define VIRTIO_SCSI_F_HOTPLUG 1 +#define VIRTIO_SCSI_F_CHANGE 2 /* Response codes */ #define VIRTIO_SCSI_S_OK 0 @@ -108,6 +109,7 @@ struct virtio_scsi_config { #define VIRTIO_SCSI_T_NO_EVENT 0 #define VIRTIO_SCSI_T_TRANSPORT_RESET 1 #define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 +#define VIRTIO_SCSI_T_PARAM_CHANGE 3 /* Reasons of transport reset event */ #define VIRTIO_SCSI_EVT_RESET_HARD 0 |