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virtio-scsi: Catch BDS-BB removal/insertion

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Make use of the BDS-BB removal and insertion notifiers to remove or set
up, respectively, virtio-scsi's op blockers.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2016-01-29 16:36:05 +01:00
parent 1b1e0659a4
commit 5b9e0e4693
2 changed files with 65 additions and 0 deletions
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10
include/hw/virtio/virtio-scsi.h
View file

@ -76,6 +76,13 @@ typedef struct VirtIOSCSICommon {
VirtQueue **cmd_vqs;
} VirtIOSCSICommon;
typedef struct VirtIOSCSIBlkChangeNotifier {
Notifier n;
struct VirtIOSCSI *s;
SCSIDevice *sd;
QTAILQ_ENTRY(VirtIOSCSIBlkChangeNotifier) next;
} VirtIOSCSIBlkChangeNotifier;
typedef struct VirtIOSCSI {
VirtIOSCSICommon parent_obj;
@ -86,6 +93,9 @@ typedef struct VirtIOSCSI {
/* Fields for dataplane below */
AioContext *ctx; /* one iothread per virtio-scsi-pci for now */
QTAILQ_HEAD(, VirtIOSCSIBlkChangeNotifier) insert_notifiers;
QTAILQ_HEAD(, VirtIOSCSIBlkChangeNotifier) remove_notifiers;
/* Vring is used instead of vq in dataplane code, because of the underlying
* memory layer thread safety */
VirtIOSCSIVring *ctrl_vring;