xref: /qemu/hw/s390x/virtio-ccw.h (revision 52ea63de) 
1 /*
2  * virtio ccw target definitions
3  *
4  * Copyright 2012,2015 IBM Corp.
5  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
6  *            Pierre Morel <pmorel@linux.vnet.ibm.com>
7  *
8  * This work is licensed under the terms of the GNU GPL, version 2 or (at
9  * your option) any later version. See the COPYING file in the top-level
10  * directory.
11  */
12 
13 #ifndef HW_S390X_VIRTIO_CCW_H
14 #define HW_S390X_VIRTIO_CCW_H
15 
16 #include <hw/virtio/virtio-blk.h>
17 #include <hw/virtio/virtio-net.h>
18 #include <hw/virtio/virtio-serial.h>
19 #include <hw/virtio/virtio-scsi.h>
20 #ifdef CONFIG_VHOST_SCSI
21 #include <hw/virtio/vhost-scsi.h>
22 #endif
23 #include <hw/virtio/virtio-balloon.h>
24 #include <hw/virtio/virtio-rng.h>
25 #include <hw/virtio/virtio-bus.h>
26 
27 #include <hw/s390x/s390_flic.h>
28 #include <hw/s390x/css.h>
29 
30 #define VIRTUAL_CSSID 0xfe
31 
32 #define VIRTIO_CCW_CU_TYPE 0x3832
33 #define VIRTIO_CCW_CHPID_TYPE 0x32
34 
35 #define CCW_CMD_SET_VQ       0x13
36 #define CCW_CMD_VDEV_RESET   0x33
37 #define CCW_CMD_READ_FEAT    0x12
38 #define CCW_CMD_WRITE_FEAT   0x11
39 #define CCW_CMD_READ_CONF    0x22
40 #define CCW_CMD_WRITE_CONF   0x21
41 #define CCW_CMD_WRITE_STATUS 0x31
42 #define CCW_CMD_SET_IND      0x43
43 #define CCW_CMD_SET_CONF_IND 0x53
44 #define CCW_CMD_READ_VQ_CONF 0x32
45 #define CCW_CMD_SET_IND_ADAPTER 0x73
46 #define CCW_CMD_SET_VIRTIO_REV 0x83
47 
48 #define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
49 #define VIRTIO_CCW_DEVICE(obj) \
50      OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
51 #define VIRTIO_CCW_DEVICE_CLASS(klass) \
52      OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
53 #define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
54      OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
55 
56 typedef struct VirtioBusState VirtioCcwBusState;
57 typedef struct VirtioBusClass VirtioCcwBusClass;
58 
59 #define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
60 #define VIRTIO_CCW_BUS(obj) \
61      OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
62 #define VIRTIO_CCW_BUS_GET_CLASS(obj) \
63     OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
64 #define VIRTIO_CCW_BUS_CLASS(klass) \
65     OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
66 
67 typedef struct VirtioCcwDevice VirtioCcwDevice;
68 
69 typedef struct VirtIOCCWDeviceClass {
70     DeviceClass parent_class;
71     void (*realize)(VirtioCcwDevice *dev, Error **errp);
72     int (*exit)(VirtioCcwDevice *dev);
73 } VirtIOCCWDeviceClass;
74 
75 /* Performance improves when virtqueue kick processing is decoupled from the
76  * vcpu thread using ioeventfd for some devices. */
77 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
78 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD   (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
79 
80 struct VirtioCcwDevice {
81     DeviceState parent_obj;
82     SubchDev *sch;
83     CssDevId bus_id;
84     int revision;
85     uint32_t max_rev;
86     VirtioBusState bus;
87     bool ioeventfd_started;
88     bool ioeventfd_disabled;
89     uint32_t flags;
90     uint8_t thinint_isc;
91     AdapterRoutes routes;
92     /* Guest provided values: */
93     IndAddr *indicators;
94     IndAddr *indicators2;
95     IndAddr *summary_indicator;
96     uint64_t ind_bit;
97 };
98 
99 /* The maximum virtio revision we support. */
100 #define VIRTIO_CCW_MAX_REV 1
101 static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev)
102 {
103     return dev->max_rev;
104 }
105 
106 /* virtual css bus type */
107 typedef struct VirtualCssBus {
108     BusState parent_obj;
109 } VirtualCssBus;
110 
111 #define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"
112 #define VIRTUAL_CSS_BUS(obj) \
113      OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
114 
115 /* virtio-scsi-ccw */
116 
117 #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
118 #define VIRTIO_SCSI_CCW(obj) \
119         OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
120 
121 typedef struct VirtIOSCSICcw {
122     VirtioCcwDevice parent_obj;
123     VirtIOSCSI vdev;
124 } VirtIOSCSICcw;
125 
126 #ifdef CONFIG_VHOST_SCSI
127 /* vhost-scsi-ccw */
128 
129 #define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
130 #define VHOST_SCSI_CCW(obj) \
131         OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
132 
133 typedef struct VHostSCSICcw {
134     VirtioCcwDevice parent_obj;
135     VHostSCSI vdev;
136 } VHostSCSICcw;
137 #endif
138 
139 /* virtio-blk-ccw */
140 
141 #define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
142 #define VIRTIO_BLK_CCW(obj) \
143         OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
144 
145 typedef struct VirtIOBlkCcw {
146     VirtioCcwDevice parent_obj;
147     VirtIOBlock vdev;
148 } VirtIOBlkCcw;
149 
150 /* virtio-balloon-ccw */
151 
152 #define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
153 #define VIRTIO_BALLOON_CCW(obj) \
154         OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
155 
156 typedef struct VirtIOBalloonCcw {
157     VirtioCcwDevice parent_obj;
158     VirtIOBalloon vdev;
159 } VirtIOBalloonCcw;
160 
161 /* virtio-serial-ccw */
162 
163 #define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
164 #define VIRTIO_SERIAL_CCW(obj) \
165         OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
166 
167 typedef struct VirtioSerialCcw {
168     VirtioCcwDevice parent_obj;
169     VirtIOSerial vdev;
170 } VirtioSerialCcw;
171 
172 /* virtio-net-ccw */
173 
174 #define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
175 #define VIRTIO_NET_CCW(obj) \
176         OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
177 
178 typedef struct VirtIONetCcw {
179     VirtioCcwDevice parent_obj;
180     VirtIONet vdev;
181 } VirtIONetCcw;
182 
183 /* virtio-rng-ccw */
184 
185 #define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
186 #define VIRTIO_RNG_CCW(obj) \
187         OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
188 
189 typedef struct VirtIORNGCcw {
190     VirtioCcwDevice parent_obj;
191     VirtIORNG vdev;
192 } VirtIORNGCcw;
193 
194 VirtualCssBus *virtual_css_bus_init(void);
195 void virtio_ccw_device_update_status(SubchDev *sch);
196 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
197 
198 #ifdef CONFIG_VIRTFS
199 #include "hw/9pfs/virtio-9p.h"
200 
201 #define TYPE_VIRTIO_9P_CCW "virtio-9p-ccw"
202 #define VIRTIO_9P_CCW(obj) \
203     OBJECT_CHECK(V9fsCCWState, (obj), TYPE_VIRTIO_9P_CCW)
204 
205 typedef struct V9fsCCWState {
206     VirtioCcwDevice parent_obj;
207     V9fsVirtioState vdev;
208 } V9fsCCWState;
209 
210 #endif /* CONFIG_VIRTFS */
211 
212 #endif
213