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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:18:31 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:42:15 +0300
commit437fd90c0250dee670290f9b714253671a990160 (patch)
treeb871786c360704244a07411c69fb58da9ead4a06 /qemu/include/hw/virtio/virtio-scsi.h
parent5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff)
These changes are the raw update to qemu-2.6.
Collission happened in the following patches: migration: do cleanup operation after completion(738df5b9) Bug fix.(1750c932f86) kvmclock: add a new function to update env->tsc.(b52baab2) The code provided by the patches was already in the upstreamed version. Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/include/hw/virtio/virtio-scsi.h')
-rw-r--r--qemu/include/hw/virtio/virtio-scsi.h53
1 files changed, 21 insertions, 32 deletions
diff --git a/qemu/include/hw/virtio/virtio-scsi.h b/qemu/include/hw/virtio/virtio-scsi.h
index 088fe9f4b..ba2f5ce07 100644
--- a/qemu/include/hw/virtio/virtio-scsi.h
+++ b/qemu/include/hw/virtio/virtio-scsi.h
@@ -22,7 +22,6 @@
#include "hw/pci/pci.h"
#include "hw/scsi/scsi.h"
#include "sysemu/iothread.h"
-#include "hw/virtio/dataplane/vring.h"
#define TYPE_VIRTIO_SCSI_COMMON "virtio-scsi-common"
#define VIRTIO_SCSI_COMMON(obj) \
@@ -58,13 +57,6 @@ struct VirtIOSCSIConf {
struct VirtIOSCSI;
-typedef struct {
- struct VirtIOSCSI *parent;
- Vring vring;
- EventNotifier host_notifier;
- EventNotifier guest_notifier;
-} VirtIOSCSIVring;
-
typedef struct VirtIOSCSICommon {
VirtIODevice parent_obj;
VirtIOSCSIConf conf;
@@ -76,6 +68,13 @@ 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;
@@ -86,37 +85,29 @@ typedef struct VirtIOSCSI {
/* Fields for dataplane below */
AioContext *ctx; /* one iothread per virtio-scsi-pci for now */
- /* Vring is used instead of vq in dataplane code, because of the underlying
- * memory layer thread safety */
- VirtIOSCSIVring *ctrl_vring;
- VirtIOSCSIVring *event_vring;
- VirtIOSCSIVring **cmd_vrings;
+ QTAILQ_HEAD(, VirtIOSCSIBlkChangeNotifier) insert_notifiers;
+ QTAILQ_HEAD(, VirtIOSCSIBlkChangeNotifier) remove_notifiers;
+
bool dataplane_started;
bool dataplane_starting;
bool dataplane_stopping;
- bool dataplane_disabled;
bool dataplane_fenced;
Error *blocker;
- Notifier migration_state_notifier;
uint32_t host_features;
} VirtIOSCSI;
typedef struct VirtIOSCSIReq {
+ /* Note:
+ * - fields up to resp_iov are initialized by virtio_scsi_init_req;
+ * - fields starting at vring are zeroed by virtio_scsi_init_req.
+ * */
+ VirtQueueElement elem;
+
VirtIOSCSI *dev;
VirtQueue *vq;
QEMUSGList qsgl;
QEMUIOVector resp_iov;
- /* Note:
- * - fields before elem are initialized by virtio_scsi_init_req;
- * - elem is uninitialized at the time of allocation.
- * - fields after elem are zeroed by virtio_scsi_init_req.
- * */
-
- VirtQueueElement elem;
- /* Set by dataplane code. */
- VirtIOSCSIVring *vring;
-
union {
/* Used for two-stage request submission */
QTAILQ_ENTRY(VirtIOSCSIReq) next;
@@ -148,10 +139,10 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp,
HandleOutput cmd);
void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp);
-void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req);
-bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req);
-void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req);
-VirtIOSCSIReq *virtio_scsi_init_req(VirtIOSCSI *s, VirtQueue *vq);
+void virtio_scsi_handle_event_vq(VirtIOSCSI *s, VirtQueue *vq);
+void virtio_scsi_handle_cmd_vq(VirtIOSCSI *s, VirtQueue *vq);
+void virtio_scsi_handle_ctrl_vq(VirtIOSCSI *s, VirtQueue *vq);
+void virtio_scsi_init_req(VirtIOSCSI *s, VirtQueue *vq, VirtIOSCSIReq *req);
void virtio_scsi_free_req(VirtIOSCSIReq *req);
void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
uint32_t event, uint32_t reason);
@@ -159,8 +150,6 @@ void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
void virtio_scsi_set_iothread(VirtIOSCSI *s, IOThread *iothread);
void virtio_scsi_dataplane_start(VirtIOSCSI *s);
void virtio_scsi_dataplane_stop(VirtIOSCSI *s);
-void virtio_scsi_vring_push_notify(VirtIOSCSIReq *req);
-VirtIOSCSIReq *virtio_scsi_pop_req_vring(VirtIOSCSI *s,
- VirtIOSCSIVring *vring);
+void virtio_scsi_dataplane_notify(VirtIODevice *vdev, VirtIOSCSIReq *req);
#endif /* _QEMU_VIRTIO_SCSI_H */