scsi: move request-related callbacks from SCSIDeviceInfo to SCSIReqOps

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/scsi-bus.c

@@ -160,7 +160,7 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
 
 uint8_t *scsi_req_get_buf(SCSIRequest *req)
 {
-    return req->dev->info->get_buf(req);
+    return req->ops->get_buf(req);
 }
 
 int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len)
@@ -199,7 +199,7 @@ int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf)
     QTAILQ_INSERT_TAIL(&req->dev->requests, req, next);
 
     scsi_req_ref(req);
-    rc = req->dev->info->send_command(req, buf);
+    rc = req->ops->send_command(req, buf);
     scsi_req_unref(req);
     return rc;
 }
@@ -673,8 +673,8 @@ SCSIRequest *scsi_req_ref(SCSIRequest *req)
 void scsi_req_unref(SCSIRequest *req)
 {
     if (--req->refcount == 0) {
-        if (req->dev->info->free_req) {
-            req->dev->info->free_req(req);
+        if (req->ops->free_req) {
+            req->ops->free_req(req);
         }
         qemu_free(req);
     }
@@ -686,9 +686,9 @@ void scsi_req_continue(SCSIRequest *req)
 {
     trace_scsi_req_continue(req->dev->id, req->lun, req->tag);
     if (req->cmd.mode == SCSI_XFER_TO_DEV) {
-        req->dev->info->write_data(req);
+        req->ops->write_data(req);
     } else {
-        req->dev->info->read_data(req);
+        req->ops->read_data(req);
     }
 }
 
@@ -752,8 +752,8 @@ void scsi_req_complete(SCSIRequest *req, int status)
 
 void scsi_req_cancel(SCSIRequest *req)
 {
-    if (req->dev && req->dev->info->cancel_io) {
-        req->dev->info->cancel_io(req);
+    if (req->ops->cancel_io) {
+        req->ops->cancel_io(req);
     }
     scsi_req_ref(req);
     scsi_req_dequeue(req);
@@ -765,8 +765,8 @@ void scsi_req_cancel(SCSIRequest *req)
 
 void scsi_req_abort(SCSIRequest *req, int status)
 {
-    if (req->dev && req->dev->info->cancel_io) {
-        req->dev->info->cancel_io(req);
+    if (req->ops->cancel_io) {
+        req->ops->cancel_io(req);
     }
     scsi_req_complete(req, status);
 }

hw/scsi-disk.c

@@ -1214,6 +1214,12 @@ static int scsi_disk_initfn(SCSIDevice *dev)
 
 static SCSIReqOps scsi_disk_reqops = {
     .size         = sizeof(SCSIDiskReq),
+    .free_req     = scsi_free_request,
+    .send_command = scsi_send_command,
+    .read_data    = scsi_read_data,
+    .write_data   = scsi_write_data,
+    .cancel_io    = scsi_cancel_io,
+    .get_buf      = scsi_get_buf,
 };
 
 static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag,
@@ -1244,12 +1250,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .init         = scsi_hd_initfn,
         .destroy      = scsi_destroy,
         .alloc_req    = scsi_new_request,
-        .free_req     = scsi_free_request,
-        .send_command = scsi_send_command,
-        .read_data    = scsi_read_data,
-        .write_data   = scsi_write_data,
-        .cancel_io    = scsi_cancel_io,
-        .get_buf      = scsi_get_buf,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false),
@@ -1264,12 +1264,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .init         = scsi_cd_initfn,
         .destroy      = scsi_destroy,
         .alloc_req    = scsi_new_request,
-        .free_req     = scsi_free_request,
-        .send_command = scsi_send_command,
-        .read_data    = scsi_read_data,
-        .write_data   = scsi_write_data,
-        .cancel_io    = scsi_cancel_io,
-        .get_buf      = scsi_get_buf,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_END_OF_LIST(),
@@ -1283,12 +1277,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .init         = scsi_disk_initfn,
         .destroy      = scsi_destroy,
         .alloc_req    = scsi_new_request,
-        .free_req     = scsi_free_request,
-        .send_command = scsi_send_command,
-        .read_data    = scsi_read_data,
-        .write_data   = scsi_write_data,
-        .cancel_io    = scsi_cancel_io,
-        .get_buf      = scsi_get_buf,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false),

hw/scsi-generic.c

@@ -491,6 +491,12 @@ static int scsi_generic_initfn(SCSIDevice *dev)
 
 static SCSIReqOps scsi_generic_req_ops = {
     .size         = sizeof(SCSIGenericReq),
+    .free_req     = scsi_free_request,
+    .send_command = scsi_send_command,
+    .read_data    = scsi_read_data,
+    .write_data   = scsi_write_data,
+    .cancel_io    = scsi_cancel_io,
+    .get_buf      = scsi_get_buf,
 };
 
 static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
@@ -510,12 +516,6 @@ static SCSIDeviceInfo scsi_generic_info = {
     .init         = scsi_generic_initfn,
     .destroy      = scsi_destroy,
     .alloc_req    = scsi_new_request,
-    .free_req     = scsi_free_request,
-    .send_command = scsi_send_command,
-    .read_data    = scsi_read_data,
-    .write_data   = scsi_write_data,
-    .cancel_io    = scsi_cancel_io,
-    .get_buf      = scsi_get_buf,
     .qdev.props   = (Property[]) {
         DEFINE_BLOCK_PROPERTIES(SCSIGenericState, qdev.conf),
         DEFINE_PROP_END_OF_LIST(),

hw/scsi.h

@@ -73,6 +73,12 @@ int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
 /* scsi-bus.c */
 struct SCSIReqOps {
     size_t size;
+    void (*free_req)(SCSIRequest *req);
+    int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
+    void (*read_data)(SCSIRequest *req);
+    void (*write_data)(SCSIRequest *req);
+    void (*cancel_io)(SCSIRequest *req);
+    uint8_t *(*get_buf)(SCSIRequest *req);
 };
 
 typedef int (*scsi_qdev_initfn)(SCSIDevice *dev);
@@ -82,12 +88,7 @@ struct SCSIDeviceInfo {
     void (*destroy)(SCSIDevice *s);
     SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
                               void *hba_private);
-    void (*free_req)(SCSIRequest *req);
-    int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
-    void (*read_data)(SCSIRequest *req);
-    void (*write_data)(SCSIRequest *req);
-    void (*cancel_io)(SCSIRequest *req);
-    uint8_t *(*get_buf)(SCSIRequest *req);
+    SCSIReqOps reqops;
 };
 
 struct SCSIBusOps {