We will need to add LCHS removal logic to scsi-hd's unrealize() in the
next commit.

Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
 hw/scsi/scsi-bus.c     | 15 +++++++++++++++
 include/hw/scsi/scsi.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index c480553083..f6fe497a1a 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -55,6 +55,14 @@ static void scsi_device_realize(SCSIDevice *s, Error **errp)
     }
 }
 
+static void scsi_device_unrealize(SCSIDevice *s, Error **errp)
+{
+    SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+    if (sc->unrealize) {
+        sc->unrealize(s, errp);
+    }
+}
+
 int scsi_bus_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
                        void *hba_private)
 {
@@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
 static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
 {
     SCSIDevice *dev = SCSI_DEVICE(qdev);
+    Error *local_err = NULL;
 
     if (dev->vmsentry) {
         qemu_del_vm_change_state_handler(dev->vmsentry);
     }
 
+    scsi_device_unrealize(dev, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
     scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));
     blockdev_mark_auto_del(dev->conf.blk);
 }
diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h
index 426566a5c6..8cf71f910d 100644
--- a/include/hw/scsi/scsi.h
+++ b/include/hw/scsi/scsi.h
@@ -59,6 +59,7 @@ struct SCSIRequest {
 typedef struct SCSIDeviceClass {
     DeviceClass parent_class;
     void (*realize)(SCSIDevice *dev, Error **errp);
+    void (*unrealize)(SCSIDevice *dev, Error **errp);
     int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
                      void *hba_private);
     SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
-- 
2.13.3
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On 26.06.19 14:39, Sam Eiderman wrote:
> We will need to add LCHS removal logic to scsi-hd's unrealize() in the
> next commit.
> 
> Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
> ---
>  hw/scsi/scsi-bus.c     | 15 +++++++++++++++
>  include/hw/scsi/scsi.h |  1 +
>  2 files changed, 16 insertions(+)
> 
> diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
> index c480553083..f6fe497a1a 100644
> --- a/hw/scsi/scsi-bus.c
> +++ b/hw/scsi/scsi-bus.c

[...]

> @@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
>  static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
>  {
>      SCSIDevice *dev = SCSI_DEVICE(qdev);
> +    Error *local_err = NULL;
>  
>      if (dev->vmsentry) {
>          qemu_del_vm_change_state_handler(dev->vmsentry);
>      }
>  
> +    scsi_device_unrealize(dev, &local_err);
> +    if (local_err) {
> +        error_propagate(errp, local_err);
> +        return;
> +    }
> +
>      scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));

(I see this code for the first time, but) I suppose I’d put the
scsi_device_unrealize() after scsi_device_purge_requests().

Max

>      blockdev_mark_auto_del(dev->conf.blk);
>  }

> @@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
>  static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
>  {
>      SCSIDevice *dev = SCSI_DEVICE(qdev);
> +    Error *local_err = NULL;
>
>      if (dev->vmsentry) {
>          qemu_del_vm_change_state_handler(dev->vmsentry);
>      }
>
> +    scsi_device_unrealize(dev, &local_err);
> +    if (local_err) {
> +        error_propagate(errp, local_err);
> +        return;
> +    }
> +
>      scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));

(I see this code for the first time, but) I suppose I’d put the
scsi_device_unrealize() after scsi_device_purge_requests().

Max

>      blockdev_mark_auto_del(dev->conf.blk);
>  }

- shmuel.eiderman@oracle.com
+ sameid@google.com

Sure, I'll resubmit

Sam