root / hw / scsi-bus.c @ 74382217
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1 | d52affa7 | Gerd Hoffmann | #include "hw.h" |
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2 | 2f792016 | Markus Armbruster | #include "qemu-error.h" |
3 | 43b443b6 | Gerd Hoffmann | #include "scsi.h" |
4 | 2ec749cb | Gerd Hoffmann | #include "scsi-defs.h" |
5 | d52affa7 | Gerd Hoffmann | #include "qdev.h" |
6 | 2446333c | Blue Swirl | #include "blockdev.h" |
7 | 5138efec | Paolo Bonzini | #include "trace.h" |
8 | d52affa7 | Gerd Hoffmann | |
9 | db07c0f8 | Gleb Natapov | static char *scsibus_get_fw_dev_path(DeviceState *dev); |
10 | db07c0f8 | Gleb Natapov | |
11 | d52affa7 | Gerd Hoffmann | static struct BusInfo scsi_bus_info = { |
12 | d52affa7 | Gerd Hoffmann | .name = "SCSI",
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13 | d52affa7 | Gerd Hoffmann | .size = sizeof(SCSIBus),
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14 | db07c0f8 | Gleb Natapov | .get_fw_dev_path = scsibus_get_fw_dev_path, |
15 | d52affa7 | Gerd Hoffmann | .props = (Property[]) { |
16 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1), |
17 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
18 | d52affa7 | Gerd Hoffmann | }, |
19 | d52affa7 | Gerd Hoffmann | }; |
20 | d52affa7 | Gerd Hoffmann | static int next_scsi_bus; |
21 | d52affa7 | Gerd Hoffmann | |
22 | d52affa7 | Gerd Hoffmann | /* Create a scsi bus, and attach devices to it. */
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23 | ca9c39fa | Gerd Hoffmann | void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev, |
24 | cfdc1bb0 | Paolo Bonzini | const SCSIBusOps *ops)
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25 | d52affa7 | Gerd Hoffmann | { |
26 | ca9c39fa | Gerd Hoffmann | qbus_create_inplace(&bus->qbus, &scsi_bus_info, host, NULL);
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27 | d52affa7 | Gerd Hoffmann | bus->busnr = next_scsi_bus++; |
28 | d52affa7 | Gerd Hoffmann | bus->tcq = tcq; |
29 | d52affa7 | Gerd Hoffmann | bus->ndev = ndev; |
30 | cfdc1bb0 | Paolo Bonzini | bus->ops = ops; |
31 | cb23117b | Gerd Hoffmann | bus->qbus.allow_hotplug = 1;
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32 | d52affa7 | Gerd Hoffmann | } |
33 | d52affa7 | Gerd Hoffmann | |
34 | d52affa7 | Gerd Hoffmann | static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base) |
35 | d52affa7 | Gerd Hoffmann | { |
36 | d52affa7 | Gerd Hoffmann | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); |
37 | d52affa7 | Gerd Hoffmann | SCSIDeviceInfo *info = DO_UPCAST(SCSIDeviceInfo, qdev, base); |
38 | d52affa7 | Gerd Hoffmann | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); |
39 | 01985dcf | Gerd Hoffmann | int rc = -1; |
40 | d52affa7 | Gerd Hoffmann | |
41 | d52affa7 | Gerd Hoffmann | if (dev->id == -1) { |
42 | d52affa7 | Gerd Hoffmann | for (dev->id = 0; dev->id < bus->ndev; dev->id++) { |
43 | d52affa7 | Gerd Hoffmann | if (bus->devs[dev->id] == NULL) |
44 | d52affa7 | Gerd Hoffmann | break;
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45 | d52affa7 | Gerd Hoffmann | } |
46 | d52affa7 | Gerd Hoffmann | } |
47 | d52affa7 | Gerd Hoffmann | if (dev->id >= bus->ndev) {
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48 | 1ecda02b | Markus Armbruster | error_report("bad scsi device id: %d", dev->id);
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49 | d52affa7 | Gerd Hoffmann | goto err;
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50 | d52affa7 | Gerd Hoffmann | } |
51 | d52affa7 | Gerd Hoffmann | |
52 | d52affa7 | Gerd Hoffmann | if (bus->devs[dev->id]) {
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53 | 01985dcf | Gerd Hoffmann | qdev_free(&bus->devs[dev->id]->qdev); |
54 | d52affa7 | Gerd Hoffmann | } |
55 | d52affa7 | Gerd Hoffmann | bus->devs[dev->id] = dev; |
56 | d52affa7 | Gerd Hoffmann | |
57 | d52affa7 | Gerd Hoffmann | dev->info = info; |
58 | 9af99d98 | Gerd Hoffmann | QTAILQ_INIT(&dev->requests); |
59 | 01985dcf | Gerd Hoffmann | rc = dev->info->init(dev); |
60 | 01985dcf | Gerd Hoffmann | if (rc != 0) { |
61 | 01985dcf | Gerd Hoffmann | bus->devs[dev->id] = NULL;
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62 | 01985dcf | Gerd Hoffmann | } |
63 | d52affa7 | Gerd Hoffmann | |
64 | d52affa7 | Gerd Hoffmann | err:
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65 | 01985dcf | Gerd Hoffmann | return rc;
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66 | 01985dcf | Gerd Hoffmann | } |
67 | 01985dcf | Gerd Hoffmann | |
68 | 01985dcf | Gerd Hoffmann | static int scsi_qdev_exit(DeviceState *qdev) |
69 | 01985dcf | Gerd Hoffmann | { |
70 | 01985dcf | Gerd Hoffmann | SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev); |
71 | 01985dcf | Gerd Hoffmann | SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus); |
72 | 01985dcf | Gerd Hoffmann | |
73 | 01985dcf | Gerd Hoffmann | assert(bus->devs[dev->id] != NULL);
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74 | 01985dcf | Gerd Hoffmann | if (bus->devs[dev->id]->info->destroy) {
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75 | 01985dcf | Gerd Hoffmann | bus->devs[dev->id]->info->destroy(bus->devs[dev->id]); |
76 | 01985dcf | Gerd Hoffmann | } |
77 | 01985dcf | Gerd Hoffmann | bus->devs[dev->id] = NULL;
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78 | 01985dcf | Gerd Hoffmann | return 0; |
79 | d52affa7 | Gerd Hoffmann | } |
80 | d52affa7 | Gerd Hoffmann | |
81 | d52affa7 | Gerd Hoffmann | void scsi_qdev_register(SCSIDeviceInfo *info)
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82 | d52affa7 | Gerd Hoffmann | { |
83 | d52affa7 | Gerd Hoffmann | info->qdev.bus_info = &scsi_bus_info; |
84 | d52affa7 | Gerd Hoffmann | info->qdev.init = scsi_qdev_init; |
85 | cb23117b | Gerd Hoffmann | info->qdev.unplug = qdev_simple_unplug_cb; |
86 | 01985dcf | Gerd Hoffmann | info->qdev.exit = scsi_qdev_exit; |
87 | d52affa7 | Gerd Hoffmann | qdev_register(&info->qdev); |
88 | d52affa7 | Gerd Hoffmann | } |
89 | d52affa7 | Gerd Hoffmann | |
90 | d52affa7 | Gerd Hoffmann | /* handle legacy '-drive if=scsi,...' cmd line args */
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91 | 2d1fd261 | Stefan Hajnoczi | SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, |
92 | 2d1fd261 | Stefan Hajnoczi | int unit, bool removable) |
93 | d52affa7 | Gerd Hoffmann | { |
94 | d52affa7 | Gerd Hoffmann | const char *driver; |
95 | d52affa7 | Gerd Hoffmann | DeviceState *dev; |
96 | d52affa7 | Gerd Hoffmann | |
97 | f8b6cc00 | Markus Armbruster | driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk"; |
98 | d52affa7 | Gerd Hoffmann | dev = qdev_create(&bus->qbus, driver); |
99 | d52affa7 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "scsi-id", unit);
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100 | 2d1fd261 | Stefan Hajnoczi | if (qdev_prop_exists(dev, "removable")) { |
101 | 2d1fd261 | Stefan Hajnoczi | qdev_prop_set_bit(dev, "removable", removable);
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102 | 2d1fd261 | Stefan Hajnoczi | } |
103 | 18846dee | Markus Armbruster | if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) { |
104 | 18846dee | Markus Armbruster | qdev_free(dev); |
105 | 18846dee | Markus Armbruster | return NULL; |
106 | 18846dee | Markus Armbruster | } |
107 | 33e66b86 | Markus Armbruster | if (qdev_init(dev) < 0) |
108 | 33e66b86 | Markus Armbruster | return NULL; |
109 | d52affa7 | Gerd Hoffmann | return DO_UPCAST(SCSIDevice, qdev, dev);
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110 | d52affa7 | Gerd Hoffmann | } |
111 | d52affa7 | Gerd Hoffmann | |
112 | fa66b909 | Markus Armbruster | int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
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113 | d52affa7 | Gerd Hoffmann | { |
114 | 42e766a2 | Markus Armbruster | Location loc; |
115 | d52affa7 | Gerd Hoffmann | DriveInfo *dinfo; |
116 | fa66b909 | Markus Armbruster | int res = 0, unit; |
117 | d52affa7 | Gerd Hoffmann | |
118 | 42e766a2 | Markus Armbruster | loc_push_none(&loc); |
119 | 622b520f | Hannes Reinecke | for (unit = 0; unit < bus->ndev; unit++) { |
120 | d52affa7 | Gerd Hoffmann | dinfo = drive_get(IF_SCSI, bus->busnr, unit); |
121 | d52affa7 | Gerd Hoffmann | if (dinfo == NULL) { |
122 | d52affa7 | Gerd Hoffmann | continue;
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123 | d52affa7 | Gerd Hoffmann | } |
124 | 42e766a2 | Markus Armbruster | qemu_opts_loc_restore(dinfo->opts); |
125 | 2d1fd261 | Stefan Hajnoczi | if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) { |
126 | fa66b909 | Markus Armbruster | res = -1;
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127 | fa66b909 | Markus Armbruster | break;
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128 | fa66b909 | Markus Armbruster | } |
129 | d52affa7 | Gerd Hoffmann | } |
130 | 42e766a2 | Markus Armbruster | loc_pop(&loc); |
131 | fa66b909 | Markus Armbruster | return res;
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132 | d52affa7 | Gerd Hoffmann | } |
133 | 89b08ae1 | Gerd Hoffmann | |
134 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun) |
135 | 89b08ae1 | Gerd Hoffmann | { |
136 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *req; |
137 | 89b08ae1 | Gerd Hoffmann | |
138 | 89b08ae1 | Gerd Hoffmann | req = qemu_mallocz(size); |
139 | 5c6c0e51 | Hannes Reinecke | req->refcount = 1;
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140 | 89b08ae1 | Gerd Hoffmann | req->bus = scsi_bus_from_device(d); |
141 | 89b08ae1 | Gerd Hoffmann | req->dev = d; |
142 | 89b08ae1 | Gerd Hoffmann | req->tag = tag; |
143 | 89b08ae1 | Gerd Hoffmann | req->lun = lun; |
144 | ed3a34a3 | Gerd Hoffmann | req->status = -1;
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145 | 5138efec | Paolo Bonzini | trace_scsi_req_alloc(req->dev->id, req->lun, req->tag); |
146 | 89b08ae1 | Gerd Hoffmann | return req;
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147 | 89b08ae1 | Gerd Hoffmann | } |
148 | 89b08ae1 | Gerd Hoffmann | |
149 | 43a2b339 | Paolo Bonzini | SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun) |
150 | 43a2b339 | Paolo Bonzini | { |
151 | 43a2b339 | Paolo Bonzini | return d->info->alloc_req(d, tag, lun);
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152 | 43a2b339 | Paolo Bonzini | } |
153 | 43a2b339 | Paolo Bonzini | |
154 | 0c34459b | Paolo Bonzini | uint8_t *scsi_req_get_buf(SCSIRequest *req) |
155 | 0c34459b | Paolo Bonzini | { |
156 | 0c34459b | Paolo Bonzini | return req->dev->info->get_buf(req);
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157 | 0c34459b | Paolo Bonzini | } |
158 | 0c34459b | Paolo Bonzini | |
159 | 74382217 | Hannes Reinecke | int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len) |
160 | 74382217 | Hannes Reinecke | { |
161 | 74382217 | Hannes Reinecke | if (req->dev->info->get_sense) {
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162 | 74382217 | Hannes Reinecke | return req->dev->info->get_sense(req, buf, len);
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163 | 74382217 | Hannes Reinecke | } else {
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164 | 74382217 | Hannes Reinecke | return 0; |
165 | 74382217 | Hannes Reinecke | } |
166 | 74382217 | Hannes Reinecke | } |
167 | 74382217 | Hannes Reinecke | |
168 | fc4f0754 | Paolo Bonzini | int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf) |
169 | 89b08ae1 | Gerd Hoffmann | { |
170 | fc4f0754 | Paolo Bonzini | int32_t rc; |
171 | fc4f0754 | Paolo Bonzini | |
172 | 5c6c0e51 | Hannes Reinecke | assert(!req->enqueued); |
173 | 5c6c0e51 | Hannes Reinecke | scsi_req_ref(req); |
174 | 5c6c0e51 | Hannes Reinecke | req->enqueued = true;
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175 | 5c6c0e51 | Hannes Reinecke | QTAILQ_INSERT_TAIL(&req->dev->requests, req, next); |
176 | fc4f0754 | Paolo Bonzini | |
177 | fc4f0754 | Paolo Bonzini | scsi_req_ref(req); |
178 | fc4f0754 | Paolo Bonzini | rc = req->dev->info->send_command(req, buf); |
179 | fc4f0754 | Paolo Bonzini | scsi_req_unref(req); |
180 | fc4f0754 | Paolo Bonzini | return rc;
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181 | 89b08ae1 | Gerd Hoffmann | } |
182 | 89b08ae1 | Gerd Hoffmann | |
183 | a1f0cce2 | Hannes Reinecke | static void scsi_req_dequeue(SCSIRequest *req) |
184 | e8637c90 | Jan Kiszka | { |
185 | 5138efec | Paolo Bonzini | trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag); |
186 | e8637c90 | Jan Kiszka | if (req->enqueued) {
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187 | e8637c90 | Jan Kiszka | QTAILQ_REMOVE(&req->dev->requests, req, next); |
188 | e8637c90 | Jan Kiszka | req->enqueued = false;
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189 | ad2d30f7 | Paolo Bonzini | scsi_req_unref(req); |
190 | e8637c90 | Jan Kiszka | } |
191 | e8637c90 | Jan Kiszka | } |
192 | e8637c90 | Jan Kiszka | |
193 | 2ec749cb | Gerd Hoffmann | static int scsi_req_length(SCSIRequest *req, uint8_t *cmd) |
194 | 2ec749cb | Gerd Hoffmann | { |
195 | 2ec749cb | Gerd Hoffmann | switch (cmd[0] >> 5) { |
196 | 2ec749cb | Gerd Hoffmann | case 0: |
197 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[4];
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198 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 6;
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199 | 2ec749cb | Gerd Hoffmann | /* length 0 means 256 blocks */
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200 | 2ec749cb | Gerd Hoffmann | if (req->cmd.xfer == 0) |
201 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 256;
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202 | 2ec749cb | Gerd Hoffmann | break;
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203 | 2ec749cb | Gerd Hoffmann | case 1: |
204 | 2ec749cb | Gerd Hoffmann | case 2: |
205 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[8] | (cmd[7] << 8); |
206 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 10;
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207 | 2ec749cb | Gerd Hoffmann | break;
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208 | 2ec749cb | Gerd Hoffmann | case 4: |
209 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[13] | (cmd[12] << 8) | (cmd[11] << 16) | (cmd[10] << 24); |
210 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 16;
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211 | 2ec749cb | Gerd Hoffmann | break;
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212 | 2ec749cb | Gerd Hoffmann | case 5: |
213 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[9] | (cmd[8] << 8) | (cmd[7] << 16) | (cmd[6] << 24); |
214 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 12;
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215 | 2ec749cb | Gerd Hoffmann | break;
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216 | 2ec749cb | Gerd Hoffmann | default:
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217 | 5138efec | Paolo Bonzini | trace_scsi_req_parse_bad(req->dev->id, req->lun, req->tag, cmd[0]);
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218 | 2ec749cb | Gerd Hoffmann | return -1; |
219 | 2ec749cb | Gerd Hoffmann | } |
220 | 2ec749cb | Gerd Hoffmann | |
221 | 2ec749cb | Gerd Hoffmann | switch(cmd[0]) { |
222 | 2ec749cb | Gerd Hoffmann | case TEST_UNIT_READY:
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223 | 2ec749cb | Gerd Hoffmann | case REZERO_UNIT:
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224 | 2ec749cb | Gerd Hoffmann | case START_STOP:
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225 | 2ec749cb | Gerd Hoffmann | case SEEK_6:
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226 | 2ec749cb | Gerd Hoffmann | case WRITE_FILEMARKS:
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227 | 2ec749cb | Gerd Hoffmann | case SPACE:
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228 | a5e3d9ef | Bernhard Kohl | case RESERVE:
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229 | a5e3d9ef | Bernhard Kohl | case RELEASE:
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230 | 2ec749cb | Gerd Hoffmann | case ERASE:
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231 | 2ec749cb | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
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232 | 2ec749cb | Gerd Hoffmann | case VERIFY:
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233 | 2ec749cb | Gerd Hoffmann | case SEEK_10:
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234 | 2ec749cb | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
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235 | 2ec749cb | Gerd Hoffmann | case LOCK_UNLOCK_CACHE:
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236 | 2ec749cb | Gerd Hoffmann | case LOAD_UNLOAD:
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237 | 2ec749cb | Gerd Hoffmann | case SET_CD_SPEED:
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238 | 2ec749cb | Gerd Hoffmann | case SET_LIMITS:
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239 | 2ec749cb | Gerd Hoffmann | case WRITE_LONG:
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240 | 2ec749cb | Gerd Hoffmann | case MOVE_MEDIUM:
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241 | 2ec749cb | Gerd Hoffmann | case UPDATE_BLOCK:
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242 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 0;
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243 | 2ec749cb | Gerd Hoffmann | break;
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244 | 2ec749cb | Gerd Hoffmann | case MODE_SENSE:
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245 | 2ec749cb | Gerd Hoffmann | break;
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246 | 2ec749cb | Gerd Hoffmann | case WRITE_SAME:
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247 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 1;
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248 | 2ec749cb | Gerd Hoffmann | break;
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249 | 2ec749cb | Gerd Hoffmann | case READ_CAPACITY:
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250 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 8;
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251 | 2ec749cb | Gerd Hoffmann | break;
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252 | 2ec749cb | Gerd Hoffmann | case READ_BLOCK_LIMITS:
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253 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 6;
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254 | 2ec749cb | Gerd Hoffmann | break;
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255 | 2ec749cb | Gerd Hoffmann | case READ_POSITION:
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256 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 20;
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257 | 2ec749cb | Gerd Hoffmann | break;
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258 | 2ec749cb | Gerd Hoffmann | case SEND_VOLUME_TAG:
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259 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer *= 40;
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260 | 2ec749cb | Gerd Hoffmann | break;
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261 | 2ec749cb | Gerd Hoffmann | case MEDIUM_SCAN:
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262 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer *= 8;
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263 | 2ec749cb | Gerd Hoffmann | break;
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264 | 2ec749cb | Gerd Hoffmann | case WRITE_10:
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265 | 2ec749cb | Gerd Hoffmann | case WRITE_VERIFY:
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266 | 2ec749cb | Gerd Hoffmann | case WRITE_6:
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267 | 2ec749cb | Gerd Hoffmann | case WRITE_12:
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268 | 2ec749cb | Gerd Hoffmann | case WRITE_VERIFY_12:
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269 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
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270 | bd536cf3 | Gerd Hoffmann | case WRITE_VERIFY_16:
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271 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer *= req->dev->blocksize; |
272 | 2ec749cb | Gerd Hoffmann | break;
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273 | 2ec749cb | Gerd Hoffmann | case READ_10:
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274 | 2ec749cb | Gerd Hoffmann | case READ_6:
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275 | 2ec749cb | Gerd Hoffmann | case READ_REVERSE:
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276 | 2ec749cb | Gerd Hoffmann | case RECOVER_BUFFERED_DATA:
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277 | 2ec749cb | Gerd Hoffmann | case READ_12:
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278 | bd536cf3 | Gerd Hoffmann | case READ_16:
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279 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer *= req->dev->blocksize; |
280 | 2ec749cb | Gerd Hoffmann | break;
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281 | 2ec749cb | Gerd Hoffmann | case INQUIRY:
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282 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[4] | (cmd[3] << 8); |
283 | 2ec749cb | Gerd Hoffmann | break;
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284 | c7126d5b | Nicholas Bellinger | case MAINTENANCE_OUT:
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285 | c7126d5b | Nicholas Bellinger | case MAINTENANCE_IN:
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286 | c7126d5b | Nicholas Bellinger | if (req->dev->type == TYPE_ROM) {
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287 | c7126d5b | Nicholas Bellinger | /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */
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288 | c7126d5b | Nicholas Bellinger | req->cmd.xfer = cmd[9] | (cmd[8] << 8); |
289 | c7126d5b | Nicholas Bellinger | } |
290 | c7126d5b | Nicholas Bellinger | break;
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291 | 2ec749cb | Gerd Hoffmann | } |
292 | 2ec749cb | Gerd Hoffmann | return 0; |
293 | 2ec749cb | Gerd Hoffmann | } |
294 | 2ec749cb | Gerd Hoffmann | |
295 | 2ec749cb | Gerd Hoffmann | static int scsi_req_stream_length(SCSIRequest *req, uint8_t *cmd) |
296 | 2ec749cb | Gerd Hoffmann | { |
297 | 2ec749cb | Gerd Hoffmann | switch(cmd[0]) { |
298 | 2ec749cb | Gerd Hoffmann | /* stream commands */
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299 | 2ec749cb | Gerd Hoffmann | case READ_6:
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300 | 2ec749cb | Gerd Hoffmann | case READ_REVERSE:
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301 | 2ec749cb | Gerd Hoffmann | case RECOVER_BUFFERED_DATA:
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302 | 2ec749cb | Gerd Hoffmann | case WRITE_6:
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303 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 6;
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304 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = cmd[4] | (cmd[3] << 8) | (cmd[2] << 16); |
305 | 2ec749cb | Gerd Hoffmann | if (cmd[1] & 0x01) /* fixed */ |
306 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer *= req->dev->blocksize; |
307 | 2ec749cb | Gerd Hoffmann | break;
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308 | 2ec749cb | Gerd Hoffmann | case REWIND:
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309 | 2ec749cb | Gerd Hoffmann | case START_STOP:
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310 | 2ec749cb | Gerd Hoffmann | req->cmd.len = 6;
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311 | 2ec749cb | Gerd Hoffmann | req->cmd.xfer = 0;
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312 | 2ec749cb | Gerd Hoffmann | break;
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313 | 2ec749cb | Gerd Hoffmann | /* generic commands */
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314 | 2ec749cb | Gerd Hoffmann | default:
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315 | 2ec749cb | Gerd Hoffmann | return scsi_req_length(req, cmd);
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316 | 2ec749cb | Gerd Hoffmann | } |
317 | 2ec749cb | Gerd Hoffmann | return 0; |
318 | 2ec749cb | Gerd Hoffmann | } |
319 | 2ec749cb | Gerd Hoffmann | |
320 | 97a06435 | Gerd Hoffmann | static void scsi_req_xfer_mode(SCSIRequest *req) |
321 | 97a06435 | Gerd Hoffmann | { |
322 | 97a06435 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
323 | 97a06435 | Gerd Hoffmann | case WRITE_6:
|
324 | 97a06435 | Gerd Hoffmann | case WRITE_10:
|
325 | 97a06435 | Gerd Hoffmann | case WRITE_VERIFY:
|
326 | 97a06435 | Gerd Hoffmann | case WRITE_12:
|
327 | 97a06435 | Gerd Hoffmann | case WRITE_VERIFY_12:
|
328 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
329 | bd536cf3 | Gerd Hoffmann | case WRITE_VERIFY_16:
|
330 | 97a06435 | Gerd Hoffmann | case COPY:
|
331 | 97a06435 | Gerd Hoffmann | case COPY_VERIFY:
|
332 | 97a06435 | Gerd Hoffmann | case COMPARE:
|
333 | 97a06435 | Gerd Hoffmann | case CHANGE_DEFINITION:
|
334 | 97a06435 | Gerd Hoffmann | case LOG_SELECT:
|
335 | 97a06435 | Gerd Hoffmann | case MODE_SELECT:
|
336 | 97a06435 | Gerd Hoffmann | case MODE_SELECT_10:
|
337 | 97a06435 | Gerd Hoffmann | case SEND_DIAGNOSTIC:
|
338 | 97a06435 | Gerd Hoffmann | case WRITE_BUFFER:
|
339 | 97a06435 | Gerd Hoffmann | case FORMAT_UNIT:
|
340 | 97a06435 | Gerd Hoffmann | case REASSIGN_BLOCKS:
|
341 | 97a06435 | Gerd Hoffmann | case SEARCH_EQUAL:
|
342 | 97a06435 | Gerd Hoffmann | case SEARCH_HIGH:
|
343 | 97a06435 | Gerd Hoffmann | case SEARCH_LOW:
|
344 | 97a06435 | Gerd Hoffmann | case UPDATE_BLOCK:
|
345 | 97a06435 | Gerd Hoffmann | case WRITE_LONG:
|
346 | 97a06435 | Gerd Hoffmann | case WRITE_SAME:
|
347 | 97a06435 | Gerd Hoffmann | case SEARCH_HIGH_12:
|
348 | 97a06435 | Gerd Hoffmann | case SEARCH_EQUAL_12:
|
349 | 97a06435 | Gerd Hoffmann | case SEARCH_LOW_12:
|
350 | 97a06435 | Gerd Hoffmann | case SET_WINDOW:
|
351 | 97a06435 | Gerd Hoffmann | case MEDIUM_SCAN:
|
352 | 97a06435 | Gerd Hoffmann | case SEND_VOLUME_TAG:
|
353 | 97a06435 | Gerd Hoffmann | case WRITE_LONG_2:
|
354 | 01bedeba | Nicholas Bellinger | case PERSISTENT_RESERVE_OUT:
|
355 | c7126d5b | Nicholas Bellinger | case MAINTENANCE_OUT:
|
356 | 97a06435 | Gerd Hoffmann | req->cmd.mode = SCSI_XFER_TO_DEV; |
357 | 97a06435 | Gerd Hoffmann | break;
|
358 | 97a06435 | Gerd Hoffmann | default:
|
359 | 97a06435 | Gerd Hoffmann | if (req->cmd.xfer)
|
360 | 97a06435 | Gerd Hoffmann | req->cmd.mode = SCSI_XFER_FROM_DEV; |
361 | 97a06435 | Gerd Hoffmann | else {
|
362 | 97a06435 | Gerd Hoffmann | req->cmd.mode = SCSI_XFER_NONE; |
363 | 97a06435 | Gerd Hoffmann | } |
364 | 97a06435 | Gerd Hoffmann | break;
|
365 | 97a06435 | Gerd Hoffmann | } |
366 | 97a06435 | Gerd Hoffmann | } |
367 | 97a06435 | Gerd Hoffmann | |
368 | 2ec749cb | Gerd Hoffmann | static uint64_t scsi_req_lba(SCSIRequest *req)
|
369 | 2ec749cb | Gerd Hoffmann | { |
370 | 2ec749cb | Gerd Hoffmann | uint8_t *buf = req->cmd.buf; |
371 | 2ec749cb | Gerd Hoffmann | uint64_t lba; |
372 | 2ec749cb | Gerd Hoffmann | |
373 | 2ec749cb | Gerd Hoffmann | switch (buf[0] >> 5) { |
374 | 2ec749cb | Gerd Hoffmann | case 0: |
375 | 2ec749cb | Gerd Hoffmann | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
376 | 2ec749cb | Gerd Hoffmann | (((uint64_t) buf[1] & 0x1f) << 16); |
377 | 2ec749cb | Gerd Hoffmann | break;
|
378 | 2ec749cb | Gerd Hoffmann | case 1: |
379 | 2ec749cb | Gerd Hoffmann | case 2: |
380 | 2ec749cb | Gerd Hoffmann | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
381 | 2ec749cb | Gerd Hoffmann | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
382 | 2ec749cb | Gerd Hoffmann | break;
|
383 | 2ec749cb | Gerd Hoffmann | case 4: |
384 | 2ec749cb | Gerd Hoffmann | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
385 | 2ec749cb | Gerd Hoffmann | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
386 | 2ec749cb | Gerd Hoffmann | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
387 | 2ec749cb | Gerd Hoffmann | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
388 | 2ec749cb | Gerd Hoffmann | break;
|
389 | 2ec749cb | Gerd Hoffmann | case 5: |
390 | 2ec749cb | Gerd Hoffmann | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
391 | 2ec749cb | Gerd Hoffmann | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
392 | 2ec749cb | Gerd Hoffmann | break;
|
393 | 2ec749cb | Gerd Hoffmann | default:
|
394 | 2ec749cb | Gerd Hoffmann | lba = -1;
|
395 | 2ec749cb | Gerd Hoffmann | |
396 | 2ec749cb | Gerd Hoffmann | } |
397 | 2ec749cb | Gerd Hoffmann | return lba;
|
398 | 2ec749cb | Gerd Hoffmann | } |
399 | 2ec749cb | Gerd Hoffmann | |
400 | 2ec749cb | Gerd Hoffmann | int scsi_req_parse(SCSIRequest *req, uint8_t *buf)
|
401 | 2ec749cb | Gerd Hoffmann | { |
402 | 2ec749cb | Gerd Hoffmann | int rc;
|
403 | 2ec749cb | Gerd Hoffmann | |
404 | 2ec749cb | Gerd Hoffmann | if (req->dev->type == TYPE_TAPE) {
|
405 | 2ec749cb | Gerd Hoffmann | rc = scsi_req_stream_length(req, buf); |
406 | 2ec749cb | Gerd Hoffmann | } else {
|
407 | 2ec749cb | Gerd Hoffmann | rc = scsi_req_length(req, buf); |
408 | 2ec749cb | Gerd Hoffmann | } |
409 | 2ec749cb | Gerd Hoffmann | if (rc != 0) |
410 | 2ec749cb | Gerd Hoffmann | return rc;
|
411 | 2ec749cb | Gerd Hoffmann | |
412 | 2ec749cb | Gerd Hoffmann | memcpy(req->cmd.buf, buf, req->cmd.len); |
413 | 97a06435 | Gerd Hoffmann | scsi_req_xfer_mode(req); |
414 | 2ec749cb | Gerd Hoffmann | req->cmd.lba = scsi_req_lba(req); |
415 | 5138efec | Paolo Bonzini | trace_scsi_req_parsed(req->dev->id, req->lun, req->tag, buf[0],
|
416 | 5138efec | Paolo Bonzini | req->cmd.mode, req->cmd.xfer, req->cmd.lba); |
417 | 2ec749cb | Gerd Hoffmann | return 0; |
418 | 2ec749cb | Gerd Hoffmann | } |
419 | ed3a34a3 | Gerd Hoffmann | |
420 | a1f0cce2 | Hannes Reinecke | /*
|
421 | a1f0cce2 | Hannes Reinecke | * Predefined sense codes
|
422 | a1f0cce2 | Hannes Reinecke | */
|
423 | a1f0cce2 | Hannes Reinecke | |
424 | a1f0cce2 | Hannes Reinecke | /* No sense data available */
|
425 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_NO_SENSE = { |
426 | a1f0cce2 | Hannes Reinecke | .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00 |
427 | a1f0cce2 | Hannes Reinecke | }; |
428 | a1f0cce2 | Hannes Reinecke | |
429 | a1f0cce2 | Hannes Reinecke | /* LUN not ready, Manual intervention required */
|
430 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_LUN_NOT_READY = { |
431 | a1f0cce2 | Hannes Reinecke | .key = NOT_READY, .asc = 0x04, .ascq = 0x03 |
432 | a1f0cce2 | Hannes Reinecke | }; |
433 | a1f0cce2 | Hannes Reinecke | |
434 | a1f0cce2 | Hannes Reinecke | /* LUN not ready, Medium not present */
|
435 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_NO_MEDIUM = { |
436 | a1f0cce2 | Hannes Reinecke | .key = NOT_READY, .asc = 0x3a, .ascq = 0x00 |
437 | a1f0cce2 | Hannes Reinecke | }; |
438 | a1f0cce2 | Hannes Reinecke | |
439 | a1f0cce2 | Hannes Reinecke | /* Hardware error, internal target failure */
|
440 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_TARGET_FAILURE = { |
441 | a1f0cce2 | Hannes Reinecke | .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00 |
442 | a1f0cce2 | Hannes Reinecke | }; |
443 | a1f0cce2 | Hannes Reinecke | |
444 | a1f0cce2 | Hannes Reinecke | /* Illegal request, invalid command operation code */
|
445 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_INVALID_OPCODE = { |
446 | a1f0cce2 | Hannes Reinecke | .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00 |
447 | a1f0cce2 | Hannes Reinecke | }; |
448 | a1f0cce2 | Hannes Reinecke | |
449 | a1f0cce2 | Hannes Reinecke | /* Illegal request, LBA out of range */
|
450 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_LBA_OUT_OF_RANGE = { |
451 | a1f0cce2 | Hannes Reinecke | .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00 |
452 | a1f0cce2 | Hannes Reinecke | }; |
453 | a1f0cce2 | Hannes Reinecke | |
454 | a1f0cce2 | Hannes Reinecke | /* Illegal request, Invalid field in CDB */
|
455 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_INVALID_FIELD = { |
456 | a1f0cce2 | Hannes Reinecke | .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00 |
457 | a1f0cce2 | Hannes Reinecke | }; |
458 | a1f0cce2 | Hannes Reinecke | |
459 | a1f0cce2 | Hannes Reinecke | /* Illegal request, LUN not supported */
|
460 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_LUN_NOT_SUPPORTED = { |
461 | a1f0cce2 | Hannes Reinecke | .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00 |
462 | a1f0cce2 | Hannes Reinecke | }; |
463 | a1f0cce2 | Hannes Reinecke | |
464 | a1f0cce2 | Hannes Reinecke | /* Command aborted, I/O process terminated */
|
465 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_IO_ERROR = { |
466 | a1f0cce2 | Hannes Reinecke | .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06 |
467 | a1f0cce2 | Hannes Reinecke | }; |
468 | a1f0cce2 | Hannes Reinecke | |
469 | a1f0cce2 | Hannes Reinecke | /* Command aborted, I_T Nexus loss occurred */
|
470 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_I_T_NEXUS_LOSS = { |
471 | a1f0cce2 | Hannes Reinecke | .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07 |
472 | a1f0cce2 | Hannes Reinecke | }; |
473 | a1f0cce2 | Hannes Reinecke | |
474 | a1f0cce2 | Hannes Reinecke | /* Command aborted, Logical Unit failure */
|
475 | a1f0cce2 | Hannes Reinecke | const struct SCSISense sense_code_LUN_FAILURE = { |
476 | a1f0cce2 | Hannes Reinecke | .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01 |
477 | a1f0cce2 | Hannes Reinecke | }; |
478 | a1f0cce2 | Hannes Reinecke | |
479 | a1f0cce2 | Hannes Reinecke | /*
|
480 | a1f0cce2 | Hannes Reinecke | * scsi_build_sense
|
481 | a1f0cce2 | Hannes Reinecke | *
|
482 | a1f0cce2 | Hannes Reinecke | * Build a sense buffer
|
483 | a1f0cce2 | Hannes Reinecke | */
|
484 | a1f0cce2 | Hannes Reinecke | int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed) |
485 | a1f0cce2 | Hannes Reinecke | { |
486 | a1f0cce2 | Hannes Reinecke | if (!fixed && len < 8) { |
487 | a1f0cce2 | Hannes Reinecke | return 0; |
488 | a1f0cce2 | Hannes Reinecke | } |
489 | a1f0cce2 | Hannes Reinecke | |
490 | a1f0cce2 | Hannes Reinecke | memset(buf, 0, len);
|
491 | a1f0cce2 | Hannes Reinecke | if (fixed) {
|
492 | a1f0cce2 | Hannes Reinecke | /* Return fixed format sense buffer */
|
493 | a1f0cce2 | Hannes Reinecke | buf[0] = 0xf0; |
494 | a1f0cce2 | Hannes Reinecke | buf[2] = sense.key;
|
495 | a1f0cce2 | Hannes Reinecke | buf[7] = 7; |
496 | a1f0cce2 | Hannes Reinecke | buf[12] = sense.asc;
|
497 | a1f0cce2 | Hannes Reinecke | buf[13] = sense.ascq;
|
498 | a1f0cce2 | Hannes Reinecke | return MIN(len, 18); |
499 | a1f0cce2 | Hannes Reinecke | } else {
|
500 | a1f0cce2 | Hannes Reinecke | /* Return descriptor format sense buffer */
|
501 | a1f0cce2 | Hannes Reinecke | buf[0] = 0x72; |
502 | a1f0cce2 | Hannes Reinecke | buf[1] = sense.key;
|
503 | a1f0cce2 | Hannes Reinecke | buf[2] = sense.asc;
|
504 | a1f0cce2 | Hannes Reinecke | buf[3] = sense.ascq;
|
505 | a1f0cce2 | Hannes Reinecke | return 8; |
506 | a1f0cce2 | Hannes Reinecke | } |
507 | a1f0cce2 | Hannes Reinecke | } |
508 | a1f0cce2 | Hannes Reinecke | |
509 | ec766865 | Gerd Hoffmann | static const char *scsi_command_name(uint8_t cmd) |
510 | ec766865 | Gerd Hoffmann | { |
511 | ec766865 | Gerd Hoffmann | static const char *names[] = { |
512 | ec766865 | Gerd Hoffmann | [ TEST_UNIT_READY ] = "TEST_UNIT_READY",
|
513 | ec766865 | Gerd Hoffmann | [ REZERO_UNIT ] = "REZERO_UNIT",
|
514 | 545557d4 | Blue Swirl | /* REWIND and REZERO_UNIT use the same operation code */
|
515 | ec766865 | Gerd Hoffmann | [ REQUEST_SENSE ] = "REQUEST_SENSE",
|
516 | ec766865 | Gerd Hoffmann | [ FORMAT_UNIT ] = "FORMAT_UNIT",
|
517 | ec766865 | Gerd Hoffmann | [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS",
|
518 | ec766865 | Gerd Hoffmann | [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS",
|
519 | ec766865 | Gerd Hoffmann | [ READ_6 ] = "READ_6",
|
520 | ec766865 | Gerd Hoffmann | [ WRITE_6 ] = "WRITE_6",
|
521 | ec766865 | Gerd Hoffmann | [ SEEK_6 ] = "SEEK_6",
|
522 | ec766865 | Gerd Hoffmann | [ READ_REVERSE ] = "READ_REVERSE",
|
523 | ec766865 | Gerd Hoffmann | [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS",
|
524 | ec766865 | Gerd Hoffmann | [ SPACE ] = "SPACE",
|
525 | ec766865 | Gerd Hoffmann | [ INQUIRY ] = "INQUIRY",
|
526 | ec766865 | Gerd Hoffmann | [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA",
|
527 | c7126d5b | Nicholas Bellinger | [ MAINTENANCE_IN ] = "MAINTENANCE_IN",
|
528 | c7126d5b | Nicholas Bellinger | [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT",
|
529 | ec766865 | Gerd Hoffmann | [ MODE_SELECT ] = "MODE_SELECT",
|
530 | ec766865 | Gerd Hoffmann | [ RESERVE ] = "RESERVE",
|
531 | ec766865 | Gerd Hoffmann | [ RELEASE ] = "RELEASE",
|
532 | ec766865 | Gerd Hoffmann | [ COPY ] = "COPY",
|
533 | ec766865 | Gerd Hoffmann | [ ERASE ] = "ERASE",
|
534 | ec766865 | Gerd Hoffmann | [ MODE_SENSE ] = "MODE_SENSE",
|
535 | ec766865 | Gerd Hoffmann | [ START_STOP ] = "START_STOP",
|
536 | ec766865 | Gerd Hoffmann | [ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC",
|
537 | ec766865 | Gerd Hoffmann | [ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC",
|
538 | ec766865 | Gerd Hoffmann | [ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL",
|
539 | ec766865 | Gerd Hoffmann | |
540 | ec766865 | Gerd Hoffmann | [ SET_WINDOW ] = "SET_WINDOW",
|
541 | ec766865 | Gerd Hoffmann | [ READ_CAPACITY ] = "READ_CAPACITY",
|
542 | ec766865 | Gerd Hoffmann | [ READ_10 ] = "READ_10",
|
543 | ec766865 | Gerd Hoffmann | [ WRITE_10 ] = "WRITE_10",
|
544 | ec766865 | Gerd Hoffmann | [ SEEK_10 ] = "SEEK_10",
|
545 | ec766865 | Gerd Hoffmann | [ WRITE_VERIFY ] = "WRITE_VERIFY",
|
546 | ec766865 | Gerd Hoffmann | [ VERIFY ] = "VERIFY",
|
547 | ec766865 | Gerd Hoffmann | [ SEARCH_HIGH ] = "SEARCH_HIGH",
|
548 | ec766865 | Gerd Hoffmann | [ SEARCH_EQUAL ] = "SEARCH_EQUAL",
|
549 | ec766865 | Gerd Hoffmann | [ SEARCH_LOW ] = "SEARCH_LOW",
|
550 | ec766865 | Gerd Hoffmann | [ SET_LIMITS ] = "SET_LIMITS",
|
551 | ec766865 | Gerd Hoffmann | [ PRE_FETCH ] = "PRE_FETCH",
|
552 | 545557d4 | Blue Swirl | /* READ_POSITION and PRE_FETCH use the same operation code */
|
553 | ec766865 | Gerd Hoffmann | [ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE",
|
554 | ec766865 | Gerd Hoffmann | [ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE",
|
555 | ec766865 | Gerd Hoffmann | [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA",
|
556 | ec766865 | Gerd Hoffmann | [ MEDIUM_SCAN ] = "MEDIUM_SCAN",
|
557 | ec766865 | Gerd Hoffmann | [ COMPARE ] = "COMPARE",
|
558 | ec766865 | Gerd Hoffmann | [ COPY_VERIFY ] = "COPY_VERIFY",
|
559 | ec766865 | Gerd Hoffmann | [ WRITE_BUFFER ] = "WRITE_BUFFER",
|
560 | ec766865 | Gerd Hoffmann | [ READ_BUFFER ] = "READ_BUFFER",
|
561 | ec766865 | Gerd Hoffmann | [ UPDATE_BLOCK ] = "UPDATE_BLOCK",
|
562 | ec766865 | Gerd Hoffmann | [ READ_LONG ] = "READ_LONG",
|
563 | ec766865 | Gerd Hoffmann | [ WRITE_LONG ] = "WRITE_LONG",
|
564 | ec766865 | Gerd Hoffmann | [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION",
|
565 | ec766865 | Gerd Hoffmann | [ WRITE_SAME ] = "WRITE_SAME",
|
566 | ec766865 | Gerd Hoffmann | [ READ_TOC ] = "READ_TOC",
|
567 | ec766865 | Gerd Hoffmann | [ LOG_SELECT ] = "LOG_SELECT",
|
568 | ec766865 | Gerd Hoffmann | [ LOG_SENSE ] = "LOG_SENSE",
|
569 | ec766865 | Gerd Hoffmann | [ MODE_SELECT_10 ] = "MODE_SELECT_10",
|
570 | ec766865 | Gerd Hoffmann | [ RESERVE_10 ] = "RESERVE_10",
|
571 | ec766865 | Gerd Hoffmann | [ RELEASE_10 ] = "RELEASE_10",
|
572 | ec766865 | Gerd Hoffmann | [ MODE_SENSE_10 ] = "MODE_SENSE_10",
|
573 | ec766865 | Gerd Hoffmann | [ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN",
|
574 | ec766865 | Gerd Hoffmann | [ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT",
|
575 | ec766865 | Gerd Hoffmann | [ MOVE_MEDIUM ] = "MOVE_MEDIUM",
|
576 | ec766865 | Gerd Hoffmann | [ READ_12 ] = "READ_12",
|
577 | ec766865 | Gerd Hoffmann | [ WRITE_12 ] = "WRITE_12",
|
578 | ec766865 | Gerd Hoffmann | [ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12",
|
579 | ec766865 | Gerd Hoffmann | [ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12",
|
580 | ec766865 | Gerd Hoffmann | [ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12",
|
581 | ec766865 | Gerd Hoffmann | [ SEARCH_LOW_12 ] = "SEARCH_LOW_12",
|
582 | ec766865 | Gerd Hoffmann | [ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS",
|
583 | ec766865 | Gerd Hoffmann | [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG",
|
584 | ec766865 | Gerd Hoffmann | [ WRITE_LONG_2 ] = "WRITE_LONG_2",
|
585 | ec766865 | Gerd Hoffmann | |
586 | ec766865 | Gerd Hoffmann | [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT",
|
587 | 38215553 | Gerd Hoffmann | [ GET_CONFIGURATION ] = "GET_CONFIGURATION",
|
588 | bd536cf3 | Gerd Hoffmann | [ READ_16 ] = "READ_16",
|
589 | bd536cf3 | Gerd Hoffmann | [ WRITE_16 ] = "WRITE_16",
|
590 | bd536cf3 | Gerd Hoffmann | [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16",
|
591 | 5dd90e2a | Gerd Hoffmann | [ SERVICE_ACTION_IN ] = "SERVICE_ACTION_IN",
|
592 | 39ec9a50 | Gerd Hoffmann | [ REPORT_LUNS ] = "REPORT_LUNS",
|
593 | ec766865 | Gerd Hoffmann | [ LOAD_UNLOAD ] = "LOAD_UNLOAD",
|
594 | ec766865 | Gerd Hoffmann | [ SET_CD_SPEED ] = "SET_CD_SPEED",
|
595 | ec766865 | Gerd Hoffmann | [ BLANK ] = "BLANK",
|
596 | ec766865 | Gerd Hoffmann | }; |
597 | ec766865 | Gerd Hoffmann | |
598 | ec766865 | Gerd Hoffmann | if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL) |
599 | ec766865 | Gerd Hoffmann | return "*UNKNOWN*"; |
600 | ec766865 | Gerd Hoffmann | return names[cmd];
|
601 | ec766865 | Gerd Hoffmann | } |
602 | ec766865 | Gerd Hoffmann | |
603 | ad2d30f7 | Paolo Bonzini | SCSIRequest *scsi_req_ref(SCSIRequest *req) |
604 | ad2d30f7 | Paolo Bonzini | { |
605 | ad2d30f7 | Paolo Bonzini | req->refcount++; |
606 | ad2d30f7 | Paolo Bonzini | return req;
|
607 | ad2d30f7 | Paolo Bonzini | } |
608 | ad2d30f7 | Paolo Bonzini | |
609 | ad2d30f7 | Paolo Bonzini | void scsi_req_unref(SCSIRequest *req)
|
610 | ad2d30f7 | Paolo Bonzini | { |
611 | ad2d30f7 | Paolo Bonzini | if (--req->refcount == 0) { |
612 | ad2d30f7 | Paolo Bonzini | if (req->dev->info->free_req) {
|
613 | ad2d30f7 | Paolo Bonzini | req->dev->info->free_req(req); |
614 | ad2d30f7 | Paolo Bonzini | } |
615 | ad2d30f7 | Paolo Bonzini | qemu_free(req); |
616 | ad2d30f7 | Paolo Bonzini | } |
617 | ad2d30f7 | Paolo Bonzini | } |
618 | ad2d30f7 | Paolo Bonzini | |
619 | ad3376cc | Paolo Bonzini | /* Tell the device that we finished processing this chunk of I/O. It
|
620 | ad3376cc | Paolo Bonzini | will start the next chunk or complete the command. */
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621 | ad3376cc | Paolo Bonzini | void scsi_req_continue(SCSIRequest *req)
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622 | ad3376cc | Paolo Bonzini | { |
623 | ad3376cc | Paolo Bonzini | trace_scsi_req_continue(req->dev->id, req->lun, req->tag); |
624 | ad3376cc | Paolo Bonzini | if (req->cmd.mode == SCSI_XFER_TO_DEV) {
|
625 | ad3376cc | Paolo Bonzini | req->dev->info->write_data(req); |
626 | ad3376cc | Paolo Bonzini | } else {
|
627 | ad3376cc | Paolo Bonzini | req->dev->info->read_data(req); |
628 | ad3376cc | Paolo Bonzini | } |
629 | ad3376cc | Paolo Bonzini | } |
630 | ad3376cc | Paolo Bonzini | |
631 | ab9adc88 | Paolo Bonzini | /* Called by the devices when data is ready for the HBA. The HBA should
|
632 | ab9adc88 | Paolo Bonzini | start a DMA operation to read or fill the device's data buffer.
|
633 | ad3376cc | Paolo Bonzini | Once it completes, calling scsi_req_continue will restart I/O. */
|
634 | ab9adc88 | Paolo Bonzini | void scsi_req_data(SCSIRequest *req, int len) |
635 | ab9adc88 | Paolo Bonzini | { |
636 | ab9adc88 | Paolo Bonzini | trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); |
637 | 5c6c0e51 | Hannes Reinecke | req->bus->ops->complete(req, SCSI_REASON_DATA, len); |
638 | ab9adc88 | Paolo Bonzini | } |
639 | ab9adc88 | Paolo Bonzini | |
640 | ec766865 | Gerd Hoffmann | void scsi_req_print(SCSIRequest *req)
|
641 | ec766865 | Gerd Hoffmann | { |
642 | ec766865 | Gerd Hoffmann | FILE *fp = stderr; |
643 | ec766865 | Gerd Hoffmann | int i;
|
644 | ec766865 | Gerd Hoffmann | |
645 | ec766865 | Gerd Hoffmann | fprintf(fp, "[%s id=%d] %s",
|
646 | ec766865 | Gerd Hoffmann | req->dev->qdev.parent_bus->name, |
647 | ec766865 | Gerd Hoffmann | req->dev->id, |
648 | ec766865 | Gerd Hoffmann | scsi_command_name(req->cmd.buf[0]));
|
649 | ec766865 | Gerd Hoffmann | for (i = 1; i < req->cmd.len; i++) { |
650 | ec766865 | Gerd Hoffmann | fprintf(fp, " 0x%02x", req->cmd.buf[i]);
|
651 | ec766865 | Gerd Hoffmann | } |
652 | ec766865 | Gerd Hoffmann | switch (req->cmd.mode) {
|
653 | ec766865 | Gerd Hoffmann | case SCSI_XFER_NONE:
|
654 | ec766865 | Gerd Hoffmann | fprintf(fp, " - none\n");
|
655 | ec766865 | Gerd Hoffmann | break;
|
656 | ec766865 | Gerd Hoffmann | case SCSI_XFER_FROM_DEV:
|
657 | ec766865 | Gerd Hoffmann | fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer);
|
658 | ec766865 | Gerd Hoffmann | break;
|
659 | ec766865 | Gerd Hoffmann | case SCSI_XFER_TO_DEV:
|
660 | ec766865 | Gerd Hoffmann | fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer);
|
661 | ec766865 | Gerd Hoffmann | break;
|
662 | ec766865 | Gerd Hoffmann | default:
|
663 | ec766865 | Gerd Hoffmann | fprintf(fp, " - Oops\n");
|
664 | ec766865 | Gerd Hoffmann | break;
|
665 | ec766865 | Gerd Hoffmann | } |
666 | ec766865 | Gerd Hoffmann | } |
667 | ec766865 | Gerd Hoffmann | |
668 | ed3a34a3 | Gerd Hoffmann | void scsi_req_complete(SCSIRequest *req)
|
669 | ed3a34a3 | Gerd Hoffmann | { |
670 | ed3a34a3 | Gerd Hoffmann | assert(req->status != -1);
|
671 | ad2d30f7 | Paolo Bonzini | scsi_req_ref(req); |
672 | e8637c90 | Jan Kiszka | scsi_req_dequeue(req); |
673 | 5c6c0e51 | Hannes Reinecke | req->bus->ops->complete(req, SCSI_REASON_DONE, req->status); |
674 | ad2d30f7 | Paolo Bonzini | scsi_req_unref(req); |
675 | ed3a34a3 | Gerd Hoffmann | } |
676 | db07c0f8 | Gleb Natapov | |
677 | 94d3f98a | Paolo Bonzini | void scsi_req_cancel(SCSIRequest *req)
|
678 | 94d3f98a | Paolo Bonzini | { |
679 | 94d3f98a | Paolo Bonzini | if (req->dev && req->dev->info->cancel_io) {
|
680 | 94d3f98a | Paolo Bonzini | req->dev->info->cancel_io(req); |
681 | 94d3f98a | Paolo Bonzini | } |
682 | 94d3f98a | Paolo Bonzini | scsi_req_ref(req); |
683 | 94d3f98a | Paolo Bonzini | scsi_req_dequeue(req); |
684 | 94d3f98a | Paolo Bonzini | if (req->bus->ops->cancel) {
|
685 | 94d3f98a | Paolo Bonzini | req->bus->ops->cancel(req); |
686 | 94d3f98a | Paolo Bonzini | } |
687 | 94d3f98a | Paolo Bonzini | scsi_req_unref(req); |
688 | 94d3f98a | Paolo Bonzini | } |
689 | 94d3f98a | Paolo Bonzini | |
690 | 19d110ab | Paolo Bonzini | void scsi_req_abort(SCSIRequest *req, int status) |
691 | 19d110ab | Paolo Bonzini | { |
692 | 19d110ab | Paolo Bonzini | req->status = status; |
693 | 19d110ab | Paolo Bonzini | if (req->dev && req->dev->info->cancel_io) {
|
694 | 19d110ab | Paolo Bonzini | req->dev->info->cancel_io(req); |
695 | 19d110ab | Paolo Bonzini | } |
696 | 19d110ab | Paolo Bonzini | scsi_req_complete(req); |
697 | 19d110ab | Paolo Bonzini | } |
698 | 19d110ab | Paolo Bonzini | |
699 | c557e889 | Paolo Bonzini | void scsi_device_purge_requests(SCSIDevice *sdev)
|
700 | c557e889 | Paolo Bonzini | { |
701 | c557e889 | Paolo Bonzini | SCSIRequest *req; |
702 | c557e889 | Paolo Bonzini | |
703 | c557e889 | Paolo Bonzini | while (!QTAILQ_EMPTY(&sdev->requests)) {
|
704 | c557e889 | Paolo Bonzini | req = QTAILQ_FIRST(&sdev->requests); |
705 | 94d3f98a | Paolo Bonzini | scsi_req_cancel(req); |
706 | c557e889 | Paolo Bonzini | } |
707 | c557e889 | Paolo Bonzini | } |
708 | c557e889 | Paolo Bonzini | |
709 | db07c0f8 | Gleb Natapov | static char *scsibus_get_fw_dev_path(DeviceState *dev) |
710 | db07c0f8 | Gleb Natapov | { |
711 | db07c0f8 | Gleb Natapov | SCSIDevice *d = (SCSIDevice*)dev; |
712 | db07c0f8 | Gleb Natapov | SCSIBus *bus = scsi_bus_from_device(d); |
713 | db07c0f8 | Gleb Natapov | char path[100]; |
714 | db07c0f8 | Gleb Natapov | int i;
|
715 | db07c0f8 | Gleb Natapov | |
716 | db07c0f8 | Gleb Natapov | for (i = 0; i < bus->ndev; i++) { |
717 | db07c0f8 | Gleb Natapov | if (bus->devs[i] == d) {
|
718 | db07c0f8 | Gleb Natapov | break;
|
719 | db07c0f8 | Gleb Natapov | } |
720 | db07c0f8 | Gleb Natapov | } |
721 | db07c0f8 | Gleb Natapov | |
722 | db07c0f8 | Gleb Natapov | assert(i != bus->ndev); |
723 | db07c0f8 | Gleb Natapov | |
724 | db07c0f8 | Gleb Natapov | snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i); |
725 | db07c0f8 | Gleb Natapov | |
726 | db07c0f8 | Gleb Natapov | return strdup(path);
|
727 | db07c0f8 | Gleb Natapov | } |