qemu/include/hw/virtio/vhost-scsi-common.h
Li Feng 7962e432b4 vhost-user-scsi: support reconnect to backend
If the backend crashes and restarts, the device is broken.
This patch adds reconnect for vhost-user-scsi.

This patch also improves the error messages, and reports some silent errors.

Tested with spdk backend.

Signed-off-by: Li Feng <fengli@smartx.com>
Message-Id: <20231009044735.941655-4-fengli@smartx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
2023-10-22 05:18:17 -04:00

50 lines
1.4 KiB
C

/*
* vhost_scsi host device
*
* Copyright (c) 2016 Nutanix Inc. All rights reserved.
*
* Author:
* Felipe Franciosi <felipe@nutanix.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#ifndef VHOST_SCSI_COMMON_H
#define VHOST_SCSI_COMMON_H
#include "hw/virtio/virtio-scsi.h"
#include "hw/virtio/vhost.h"
#include "hw/fw-path-provider.h"
#include "qom/object.h"
#define TYPE_VHOST_SCSI_COMMON "vhost-scsi-common"
OBJECT_DECLARE_SIMPLE_TYPE(VHostSCSICommon, VHOST_SCSI_COMMON)
struct VHostSCSICommon {
VirtIOSCSICommon parent_obj;
Error *migration_blocker;
struct vhost_dev dev;
const int *feature_bits;
int32_t bootindex;
int channel;
int target;
int lun;
uint64_t host_features;
bool migratable;
struct vhost_inflight *inflight;
};
int vhost_scsi_common_start(VHostSCSICommon *vsc, Error **errp);
void vhost_scsi_common_stop(VHostSCSICommon *vsc);
char *vhost_scsi_common_get_fw_dev_path(FWPathProvider *p, BusState *bus,
DeviceState *dev);
void vhost_scsi_common_set_config(VirtIODevice *vdev, const uint8_t *config);
uint64_t vhost_scsi_common_get_features(VirtIODevice *vdev, uint64_t features,
Error **errp);
#endif /* VHOST_SCSI_COMMON_H */