#include "scsi-defs.h"
#include "qdev.h"
#include "blockdev.h"
+#include "trace.h"
+#include "dma.h"
+static char *scsibus_get_dev_path(DeviceState *dev);
static char *scsibus_get_fw_dev_path(DeviceState *dev);
+static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf);
+static void scsi_req_dequeue(SCSIRequest *req);
-static struct BusInfo scsi_bus_info = {
- .name = "SCSI",
- .size = sizeof(SCSIBus),
- .get_fw_dev_path = scsibus_get_fw_dev_path,
- .props = (Property[]) {
- DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1),
- DEFINE_PROP_END_OF_LIST(),
- },
+static Property scsi_props[] = {
+ DEFINE_PROP_UINT32("channel", SCSIDevice, channel, 0),
+ DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1),
+ DEFINE_PROP_UINT32("lun", SCSIDevice, lun, -1),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void scsi_bus_class_init(ObjectClass *klass, void *data)
+{
+ BusClass *k = BUS_CLASS(klass);
+
+ k->get_dev_path = scsibus_get_dev_path;
+ k->get_fw_dev_path = scsibus_get_fw_dev_path;
+}
+
+static const TypeInfo scsi_bus_info = {
+ .name = TYPE_SCSI_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(SCSIBus),
+ .class_init = scsi_bus_class_init,
};
static int next_scsi_bus;
+static int scsi_device_init(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->init) {
+ return sc->init(s);
+ }
+ return 0;
+}
+
+static void scsi_device_destroy(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->destroy) {
+ sc->destroy(s);
+ }
+}
+
+static SCSIRequest *scsi_device_alloc_req(SCSIDevice *s, uint32_t tag, uint32_t lun,
+ uint8_t *buf, void *hba_private)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->alloc_req) {
+ return sc->alloc_req(s, tag, lun, buf, hba_private);
+ }
+
+ return NULL;
+}
+
+static void scsi_device_unit_attention_reported(SCSIDevice *s)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->unit_attention_reported) {
+ sc->unit_attention_reported(s);
+ }
+}
+
/* Create a scsi bus, and attach devices to it. */
-void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
- scsi_completionfn complete)
+void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info)
{
- qbus_create_inplace(&bus->qbus, &scsi_bus_info, host, NULL);
+ qbus_create_inplace(&bus->qbus, TYPE_SCSI_BUS, host, NULL);
bus->busnr = next_scsi_bus++;
- bus->tcq = tcq;
- bus->ndev = ndev;
- bus->complete = complete;
+ bus->info = info;
bus->qbus.allow_hotplug = 1;
}
-static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base)
+static void scsi_dma_restart_bh(void *opaque)
{
- SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev);
- SCSIDeviceInfo *info = DO_UPCAST(SCSIDeviceInfo, qdev, base);
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
- int rc = -1;
+ SCSIDevice *s = opaque;
+ SCSIRequest *req, *next;
- if (dev->id == -1) {
- for (dev->id = 0; dev->id < bus->ndev; dev->id++) {
- if (bus->devs[dev->id] == NULL)
+ qemu_bh_delete(s->bh);
+ s->bh = NULL;
+
+ QTAILQ_FOREACH_SAFE(req, &s->requests, next, next) {
+ scsi_req_ref(req);
+ if (req->retry) {
+ req->retry = false;
+ switch (req->cmd.mode) {
+ case SCSI_XFER_FROM_DEV:
+ case SCSI_XFER_TO_DEV:
+ scsi_req_continue(req);
+ break;
+ case SCSI_XFER_NONE:
+ assert(!req->sg);
+ scsi_req_dequeue(req);
+ scsi_req_enqueue(req);
break;
+ }
}
+ scsi_req_unref(req);
}
- if (dev->id >= bus->ndev) {
+}
+
+void scsi_req_retry(SCSIRequest *req)
+{
+ /* No need to save a reference, because scsi_dma_restart_bh just
+ * looks at the request list. */
+ req->retry = true;
+}
+
+static void scsi_dma_restart_cb(void *opaque, int running, RunState state)
+{
+ SCSIDevice *s = opaque;
+
+ if (!running) {
+ return;
+ }
+ if (!s->bh) {
+ s->bh = qemu_bh_new(scsi_dma_restart_bh, s);
+ qemu_bh_schedule(s->bh);
+ }
+}
+
+static int scsi_qdev_init(DeviceState *qdev)
+{
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+ SCSIDevice *d;
+ int rc = -1;
+
+ if (dev->channel > bus->info->max_channel) {
+ error_report("bad scsi channel id: %d", dev->channel);
+ goto err;
+ }
+ if (dev->id != -1 && dev->id > bus->info->max_target) {
error_report("bad scsi device id: %d", dev->id);
goto err;
}
+ if (dev->lun != -1 && dev->lun > bus->info->max_lun) {
+ error_report("bad scsi device lun: %d", dev->lun);
+ goto err;
+ }
- if (bus->devs[dev->id]) {
- qdev_free(&bus->devs[dev->id]->qdev);
+ if (dev->id == -1) {
+ int id = -1;
+ if (dev->lun == -1) {
+ dev->lun = 0;
+ }
+ do {
+ d = scsi_device_find(bus, dev->channel, ++id, dev->lun);
+ } while (d && d->lun == dev->lun && id < bus->info->max_target);
+ if (d && d->lun == dev->lun) {
+ error_report("no free target");
+ goto err;
+ }
+ dev->id = id;
+ } else if (dev->lun == -1) {
+ int lun = -1;
+ do {
+ d = scsi_device_find(bus, dev->channel, dev->id, ++lun);
+ } while (d && d->lun == lun && lun < bus->info->max_lun);
+ if (d && d->lun == lun) {
+ error_report("no free lun");
+ goto err;
+ }
+ dev->lun = lun;
+ } else {
+ d = scsi_device_find(bus, dev->channel, dev->id, dev->lun);
+ assert(d);
+ if (d->lun == dev->lun && dev != d) {
+ qdev_free(&d->qdev);
+ }
}
- bus->devs[dev->id] = dev;
- dev->info = info;
QTAILQ_INIT(&dev->requests);
- rc = dev->info->init(dev);
- if (rc != 0) {
- bus->devs[dev->id] = NULL;
+ rc = scsi_device_init(dev);
+ if (rc == 0) {
+ dev->vmsentry = qemu_add_vm_change_state_handler(scsi_dma_restart_cb,
+ dev);
+ }
+
+ if (bus->info->hotplug) {
+ bus->info->hotplug(bus, dev);
}
err:
static int scsi_qdev_exit(DeviceState *qdev)
{
- SCSIDevice *dev = DO_UPCAST(SCSIDevice, qdev, qdev);
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
- assert(bus->devs[dev->id] != NULL);
- if (bus->devs[dev->id]->info->destroy) {
- bus->devs[dev->id]->info->destroy(bus->devs[dev->id]);
+ if (dev->vmsentry) {
+ qemu_del_vm_change_state_handler(dev->vmsentry);
}
- bus->devs[dev->id] = NULL;
+ scsi_device_destroy(dev);
return 0;
}
-void scsi_qdev_register(SCSIDeviceInfo *info)
-{
- info->qdev.bus_info = &scsi_bus_info;
- info->qdev.init = scsi_qdev_init;
- info->qdev.unplug = qdev_simple_unplug_cb;
- info->qdev.exit = scsi_qdev_exit;
- qdev_register(&info->qdev);
-}
-
/* handle legacy '-drive if=scsi,...' cmd line args */
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
- int unit, bool removable)
+ int unit, bool removable, int bootindex)
{
const char *driver;
DeviceState *dev;
driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk";
dev = qdev_create(&bus->qbus, driver);
qdev_prop_set_uint32(dev, "scsi-id", unit);
- if (qdev_prop_exists(dev, "removable")) {
+ if (bootindex >= 0) {
+ qdev_prop_set_int32(dev, "bootindex", bootindex);
+ }
+ if (object_property_find(OBJECT(dev), "removable", NULL)) {
qdev_prop_set_bit(dev, "removable", removable);
}
if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) {
}
if (qdev_init(dev) < 0)
return NULL;
- return DO_UPCAST(SCSIDevice, qdev, dev);
+ return SCSI_DEVICE(dev);
}
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
int res = 0, unit;
loc_push_none(&loc);
- for (unit = 0; unit < bus->ndev; unit++) {
+ for (unit = 0; unit <= bus->info->max_target; unit++) {
dinfo = drive_get(IF_SCSI, bus->busnr, unit);
if (dinfo == NULL) {
continue;
}
qemu_opts_loc_restore(dinfo->opts);
- if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) {
+ if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false, -1)) {
res = -1;
break;
}
return res;
}
-SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun)
+static int32_t scsi_invalid_field(SCSIRequest *req, uint8_t *buf)
+{
+ scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD));
+ scsi_req_complete(req, CHECK_CONDITION);
+ return 0;
+}
+
+static const struct SCSIReqOps reqops_invalid_field = {
+ .size = sizeof(SCSIRequest),
+ .send_command = scsi_invalid_field
+};
+
+/* SCSIReqOps implementation for invalid commands. */
+
+static int32_t scsi_invalid_command(SCSIRequest *req, uint8_t *buf)
+{
+ scsi_req_build_sense(req, SENSE_CODE(INVALID_OPCODE));
+ scsi_req_complete(req, CHECK_CONDITION);
+ return 0;
+}
+
+static const struct SCSIReqOps reqops_invalid_opcode = {
+ .size = sizeof(SCSIRequest),
+ .send_command = scsi_invalid_command
+};
+
+/* SCSIReqOps implementation for unit attention conditions. */
+
+static int32_t scsi_unit_attention(SCSIRequest *req, uint8_t *buf)
+{
+ if (req->dev && req->dev->unit_attention.key == UNIT_ATTENTION) {
+ scsi_req_build_sense(req, req->dev->unit_attention);
+ } else if (req->bus->unit_attention.key == UNIT_ATTENTION) {
+ scsi_req_build_sense(req, req->bus->unit_attention);
+ }
+ scsi_req_complete(req, CHECK_CONDITION);
+ return 0;
+}
+
+static const struct SCSIReqOps reqops_unit_attention = {
+ .size = sizeof(SCSIRequest),
+ .send_command = scsi_unit_attention
+};
+
+/* SCSIReqOps implementation for REPORT LUNS and for commands sent to
+ an invalid LUN. */
+
+typedef struct SCSITargetReq SCSITargetReq;
+
+struct SCSITargetReq {
+ SCSIRequest req;
+ int len;
+ uint8_t buf[2056];
+};
+
+static void store_lun(uint8_t *outbuf, int lun)
+{
+ if (lun < 256) {
+ outbuf[1] = lun;
+ return;
+ }
+ outbuf[1] = (lun & 255);
+ outbuf[0] = (lun >> 8) | 0x40;
+}
+
+static bool scsi_target_emulate_report_luns(SCSITargetReq *r)
+{
+ BusChild *kid;
+ int i, len, n;
+ int channel, id;
+ bool found_lun0;
+
+ if (r->req.cmd.xfer < 16) {
+ return false;
+ }
+ if (r->req.cmd.buf[2] > 2) {
+ return false;
+ }
+ channel = r->req.dev->channel;
+ id = r->req.dev->id;
+ found_lun0 = false;
+ n = 0;
+ QTAILQ_FOREACH(kid, &r->req.bus->qbus.children, sibling) {
+ DeviceState *qdev = kid->child;
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ if (dev->lun == 0) {
+ found_lun0 = true;
+ }
+ n += 8;
+ }
+ }
+ if (!found_lun0) {
+ n += 8;
+ }
+ len = MIN(n + 8, r->req.cmd.xfer & ~7);
+ if (len > sizeof(r->buf)) {
+ /* TODO: > 256 LUNs? */
+ return false;
+ }
+
+ memset(r->buf, 0, len);
+ stl_be_p(&r->buf, n);
+ i = found_lun0 ? 8 : 16;
+ QTAILQ_FOREACH(kid, &r->req.bus->qbus.children, sibling) {
+ DeviceState *qdev = kid->child;
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ store_lun(&r->buf[i], dev->lun);
+ i += 8;
+ }
+ }
+ assert(i == n + 8);
+ r->len = len;
+ return true;
+}
+
+static bool scsi_target_emulate_inquiry(SCSITargetReq *r)
+{
+ assert(r->req.dev->lun != r->req.lun);
+ if (r->req.cmd.buf[1] & 0x2) {
+ /* Command support data - optional, not implemented */
+ return false;
+ }
+
+ if (r->req.cmd.buf[1] & 0x1) {
+ /* Vital product data */
+ uint8_t page_code = r->req.cmd.buf[2];
+ r->buf[r->len++] = page_code ; /* this page */
+ r->buf[r->len++] = 0x00;
+
+ switch (page_code) {
+ case 0x00: /* Supported page codes, mandatory */
+ {
+ int pages;
+ pages = r->len++;
+ r->buf[r->len++] = 0x00; /* list of supported pages (this page) */
+ r->buf[pages] = r->len - pages - 1; /* number of pages */
+ break;
+ }
+ default:
+ return false;
+ }
+ /* done with EVPD */
+ assert(r->len < sizeof(r->buf));
+ r->len = MIN(r->req.cmd.xfer, r->len);
+ return true;
+ }
+
+ /* Standard INQUIRY data */
+ if (r->req.cmd.buf[2] != 0) {
+ return false;
+ }
+
+ /* PAGE CODE == 0 */
+ r->len = MIN(r->req.cmd.xfer, 36);
+ memset(r->buf, 0, r->len);
+ if (r->req.lun != 0) {
+ r->buf[0] = TYPE_NO_LUN;
+ } else {
+ r->buf[0] = TYPE_NOT_PRESENT | TYPE_INACTIVE;
+ r->buf[2] = 5; /* Version */
+ r->buf[3] = 2 | 0x10; /* HiSup, response data format */
+ r->buf[4] = r->len - 5; /* Additional Length = (Len - 1) - 4 */
+ r->buf[7] = 0x10 | (r->req.bus->info->tcq ? 0x02 : 0); /* Sync, TCQ. */
+ memcpy(&r->buf[8], "QEMU ", 8);
+ memcpy(&r->buf[16], "QEMU TARGET ", 16);
+ pstrcpy((char *) &r->buf[32], 4, qemu_get_version());
+ }
+ return true;
+}
+
+static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf)
+{
+ SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req);
+
+ switch (buf[0]) {
+ case REPORT_LUNS:
+ if (!scsi_target_emulate_report_luns(r)) {
+ goto illegal_request;
+ }
+ break;
+ case INQUIRY:
+ if (!scsi_target_emulate_inquiry(r)) {
+ goto illegal_request;
+ }
+ break;
+ case REQUEST_SENSE:
+ r->len = scsi_device_get_sense(r->req.dev, r->buf,
+ MIN(req->cmd.xfer, sizeof r->buf),
+ (req->cmd.buf[1] & 1) == 0);
+ if (r->req.dev->sense_is_ua) {
+ scsi_device_unit_attention_reported(req->dev);
+ r->req.dev->sense_len = 0;
+ r->req.dev->sense_is_ua = false;
+ }
+ break;
+ default:
+ scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED));
+ scsi_req_complete(req, CHECK_CONDITION);
+ return 0;
+ illegal_request:
+ scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD));
+ scsi_req_complete(req, CHECK_CONDITION);
+ return 0;
+ }
+
+ if (!r->len) {
+ scsi_req_complete(req, GOOD);
+ }
+ return r->len;
+}
+
+static void scsi_target_read_data(SCSIRequest *req)
+{
+ SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req);
+ uint32_t n;
+
+ n = r->len;
+ if (n > 0) {
+ r->len = 0;
+ scsi_req_data(&r->req, n);
+ } else {
+ scsi_req_complete(&r->req, GOOD);
+ }
+}
+
+static uint8_t *scsi_target_get_buf(SCSIRequest *req)
+{
+ SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req);
+
+ return r->buf;
+}
+
+static const struct SCSIReqOps reqops_target_command = {
+ .size = sizeof(SCSITargetReq),
+ .send_command = scsi_target_send_command,
+ .read_data = scsi_target_read_data,
+ .get_buf = scsi_target_get_buf,
+};
+
+
+SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
+ uint32_t tag, uint32_t lun, void *hba_private)
{
SCSIRequest *req;
- req = qemu_mallocz(size);
+ req = g_malloc0(reqops->size);
+ req->refcount = 1;
req->bus = scsi_bus_from_device(d);
req->dev = d;
req->tag = tag;
req->lun = lun;
+ req->hba_private = hba_private;
req->status = -1;
- req->enqueued = true;
- QTAILQ_INSERT_TAIL(&d->requests, req, next);
+ req->sense_len = 0;
+ req->ops = reqops;
+ trace_scsi_req_alloc(req->dev->id, req->lun, req->tag);
return req;
}
-SCSIRequest *scsi_req_find(SCSIDevice *d, uint32_t tag)
+SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
+ uint8_t *buf, void *hba_private)
{
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
SCSIRequest *req;
+ SCSICommand cmd;
- QTAILQ_FOREACH(req, &d->requests, next) {
- if (req->tag == tag) {
- return req;
+ if (scsi_req_parse(&cmd, d, buf) != 0) {
+ trace_scsi_req_parse_bad(d->id, lun, tag, buf[0]);
+ req = scsi_req_alloc(&reqops_invalid_opcode, d, tag, lun, hba_private);
+ } else {
+ trace_scsi_req_parsed(d->id, lun, tag, buf[0],
+ cmd.mode, cmd.xfer);
+ if (cmd.lba != -1) {
+ trace_scsi_req_parsed_lba(d->id, lun, tag, buf[0],
+ cmd.lba);
+ }
+
+ if (cmd.xfer > INT32_MAX) {
+ req = scsi_req_alloc(&reqops_invalid_field, d, tag, lun, hba_private);
+ } else if ((d->unit_attention.key == UNIT_ATTENTION ||
+ bus->unit_attention.key == UNIT_ATTENTION) &&
+ (buf[0] != INQUIRY &&
+ buf[0] != REPORT_LUNS &&
+ buf[0] != GET_CONFIGURATION &&
+ buf[0] != GET_EVENT_STATUS_NOTIFICATION &&
+
+ /*
+ * If we already have a pending unit attention condition,
+ * report this one before triggering another one.
+ */
+ !(buf[0] == REQUEST_SENSE && d->sense_is_ua))) {
+ req = scsi_req_alloc(&reqops_unit_attention, d, tag, lun,
+ hba_private);
+ } else if (lun != d->lun ||
+ buf[0] == REPORT_LUNS ||
+ (buf[0] == REQUEST_SENSE && d->sense_len)) {
+ req = scsi_req_alloc(&reqops_target_command, d, tag, lun,
+ hba_private);
+ } else {
+ req = scsi_device_alloc_req(d, tag, lun, buf, hba_private);
}
}
- return NULL;
+
+ req->cmd = cmd;
+ req->resid = req->cmd.xfer;
+
+ switch (buf[0]) {
+ case INQUIRY:
+ trace_scsi_inquiry(d->id, lun, tag, cmd.buf[1], cmd.buf[2]);
+ break;
+ case TEST_UNIT_READY:
+ trace_scsi_test_unit_ready(d->id, lun, tag);
+ break;
+ case REPORT_LUNS:
+ trace_scsi_report_luns(d->id, lun, tag);
+ break;
+ case REQUEST_SENSE:
+ trace_scsi_request_sense(d->id, lun, tag);
+ break;
+ default:
+ break;
+ }
+
+ return req;
+}
+
+uint8_t *scsi_req_get_buf(SCSIRequest *req)
+{
+ return req->ops->get_buf(req);
+}
+
+static void scsi_clear_unit_attention(SCSIRequest *req)
+{
+ SCSISense *ua;
+ if (req->dev->unit_attention.key != UNIT_ATTENTION &&
+ req->bus->unit_attention.key != UNIT_ATTENTION) {
+ return;
+ }
+
+ /*
+ * If an INQUIRY command enters the enabled command state,
+ * the device server shall [not] clear any unit attention condition;
+ * See also MMC-6, paragraphs 6.5 and 6.6.2.
+ */
+ if (req->cmd.buf[0] == INQUIRY ||
+ req->cmd.buf[0] == GET_CONFIGURATION ||
+ req->cmd.buf[0] == GET_EVENT_STATUS_NOTIFICATION) {
+ return;
+ }
+
+ if (req->dev->unit_attention.key == UNIT_ATTENTION) {
+ ua = &req->dev->unit_attention;
+ } else {
+ ua = &req->bus->unit_attention;
+ }
+
+ /*
+ * If a REPORT LUNS command enters the enabled command state, [...]
+ * the device server shall clear any pending unit attention condition
+ * with an additional sense code of REPORTED LUNS DATA HAS CHANGED.
+ */
+ if (req->cmd.buf[0] == REPORT_LUNS &&
+ !(ua->asc == SENSE_CODE(REPORTED_LUNS_CHANGED).asc &&
+ ua->ascq == SENSE_CODE(REPORTED_LUNS_CHANGED).ascq)) {
+ return;
+ }
+
+ *ua = SENSE_CODE(NO_SENSE);
+}
+
+int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len)
+{
+ int ret;
+
+ assert(len >= 14);
+ if (!req->sense_len) {
+ return 0;
+ }
+
+ ret = scsi_build_sense(req->sense, req->sense_len, buf, len, true);
+
+ /*
+ * FIXME: clearing unit attention conditions upon autosense should be done
+ * only if the UA_INTLCK_CTRL field in the Control mode page is set to 00b
+ * (SAM-5, 5.14).
+ *
+ * We assume UA_INTLCK_CTRL to be 00b for HBAs that support autosense, and
+ * 10b for HBAs that do not support it (do not call scsi_req_get_sense).
+ * Here we handle unit attention clearing for UA_INTLCK_CTRL == 00b.
+ */
+ if (req->dev->sense_is_ua) {
+ scsi_device_unit_attention_reported(req->dev);
+ req->dev->sense_len = 0;
+ req->dev->sense_is_ua = false;
+ }
+ return ret;
+}
+
+int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed)
+{
+ return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed);
+}
+
+void scsi_req_build_sense(SCSIRequest *req, SCSISense sense)
+{
+ trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag,
+ sense.key, sense.asc, sense.ascq);
+ memset(req->sense, 0, 18);
+ req->sense[0] = 0x70;
+ req->sense[2] = sense.key;
+ req->sense[7] = 10;
+ req->sense[12] = sense.asc;
+ req->sense[13] = sense.ascq;
+ req->sense_len = 18;
+}
+
+static void scsi_req_enqueue_internal(SCSIRequest *req)
+{
+ assert(!req->enqueued);
+ scsi_req_ref(req);
+ if (req->bus->info->get_sg_list) {
+ req->sg = req->bus->info->get_sg_list(req);
+ } else {
+ req->sg = NULL;
+ }
+ req->enqueued = true;
+ QTAILQ_INSERT_TAIL(&req->dev->requests, req, next);
+}
+
+int32_t scsi_req_enqueue(SCSIRequest *req)
+{
+ int32_t rc;
+
+ assert(!req->retry);
+ scsi_req_enqueue_internal(req);
+ scsi_req_ref(req);
+ rc = req->ops->send_command(req, req->cmd.buf);
+ scsi_req_unref(req);
+ return rc;
}
static void scsi_req_dequeue(SCSIRequest *req)
{
+ trace_scsi_req_dequeue(req->dev->id, req->lun, req->tag);
+ req->retry = false;
if (req->enqueued) {
QTAILQ_REMOVE(&req->dev->requests, req, next);
req->enqueued = false;
+ scsi_req_unref(req);
}
}
-void scsi_req_free(SCSIRequest *req)
+static int scsi_get_performance_length(int num_desc, int type, int data_type)
{
- scsi_req_dequeue(req);
- qemu_free(req);
+ /* MMC-6, paragraph 6.7. */
+ switch (type) {
+ case 0:
+ if ((data_type & 3) == 0) {
+ /* Each descriptor is as in Table 295 - Nominal performance. */
+ return 16 * num_desc + 8;
+ } else {
+ /* Each descriptor is as in Table 296 - Exceptions. */
+ return 6 * num_desc + 8;
+ }
+ case 1:
+ case 4:
+ case 5:
+ return 8 * num_desc + 8;
+ case 2:
+ return 2048 * num_desc + 8;
+ case 3:
+ return 16 * num_desc + 8;
+ default:
+ return 8;
+ }
+}
+
+static int ata_passthrough_xfer_unit(SCSIDevice *dev, uint8_t *buf)
+{
+ int byte_block = (buf[2] >> 2) & 0x1;
+ int type = (buf[2] >> 4) & 0x1;
+ int xfer_unit;
+
+ if (byte_block) {
+ if (type) {
+ xfer_unit = dev->blocksize;
+ } else {
+ xfer_unit = 512;
+ }
+ } else {
+ xfer_unit = 1;
+ }
+
+ return xfer_unit;
}
-static int scsi_req_length(SCSIRequest *req, uint8_t *cmd)
+static int ata_passthrough_12_xfer_size(SCSIDevice *dev, uint8_t *buf)
{
- switch (cmd[0] >> 5) {
+ int length = buf[2] & 0x3;
+ int xfer;
+ int unit = ata_passthrough_xfer_unit(dev, buf);
+
+ switch (length) {
case 0:
- req->cmd.xfer = cmd[4];
- req->cmd.len = 6;
- /* length 0 means 256 blocks */
- if (req->cmd.xfer == 0)
- req->cmd.xfer = 256;
+ case 3: /* USB-specific. */
+ default:
+ xfer = 0;
+ break;
+ case 1:
+ xfer = buf[3];
+ break;
+ case 2:
+ xfer = buf[4];
+ break;
+ }
+
+ return xfer * unit;
+}
+
+static int ata_passthrough_16_xfer_size(SCSIDevice *dev, uint8_t *buf)
+{
+ int extend = buf[1] & 0x1;
+ int length = buf[2] & 0x3;
+ int xfer;
+ int unit = ata_passthrough_xfer_unit(dev, buf);
+
+ switch (length) {
+ case 0:
+ case 3: /* USB-specific. */
+ default:
+ xfer = 0;
+ break;
+ case 1:
+ xfer = buf[4];
+ xfer |= (extend ? buf[3] << 8 : 0);
+ break;
+ case 2:
+ xfer = buf[6];
+ xfer |= (extend ? buf[5] << 8 : 0);
+ break;
+ }
+
+ return xfer * unit;
+}
+
+static int scsi_req_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
+{
+ switch (buf[0] >> 5) {
+ case 0:
+ cmd->xfer = buf[4];
break;
case 1:
case 2:
- req->cmd.xfer = cmd[8] | (cmd[7] << 8);
- req->cmd.len = 10;
+ cmd->xfer = lduw_be_p(&buf[7]);
break;
case 4:
- req->cmd.xfer = cmd[13] | (cmd[12] << 8) | (cmd[11] << 16) | (cmd[10] << 24);
- req->cmd.len = 16;
+ cmd->xfer = ldl_be_p(&buf[10]) & 0xffffffffULL;
break;
case 5:
- req->cmd.xfer = cmd[9] | (cmd[8] << 8) | (cmd[7] << 16) | (cmd[6] << 24);
- req->cmd.len = 12;
+ cmd->xfer = ldl_be_p(&buf[6]) & 0xffffffffULL;
break;
default:
return -1;
}
- switch(cmd[0]) {
+ switch (buf[0]) {
case TEST_UNIT_READY:
- case REZERO_UNIT:
+ case REWIND:
case START_STOP:
- case SEEK_6:
+ case SET_CAPACITY:
case WRITE_FILEMARKS:
+ case WRITE_FILEMARKS_16:
case SPACE:
case RESERVE:
case RELEASE:
case ERASE:
case ALLOW_MEDIUM_REMOVAL:
- case VERIFY:
+ case VERIFY_10:
case SEEK_10:
case SYNCHRONIZE_CACHE:
+ case SYNCHRONIZE_CACHE_16:
+ case LOCATE_16:
case LOCK_UNLOCK_CACHE:
- case LOAD_UNLOAD:
case SET_CD_SPEED:
case SET_LIMITS:
- case WRITE_LONG:
- case MOVE_MEDIUM:
+ case WRITE_LONG_10:
case UPDATE_BLOCK:
- req->cmd.xfer = 0;
+ case RESERVE_TRACK:
+ case SET_READ_AHEAD:
+ case PRE_FETCH:
+ case PRE_FETCH_16:
+ case ALLOW_OVERWRITE:
+ cmd->xfer = 0;
break;
case MODE_SENSE:
break;
- case WRITE_SAME:
- req->cmd.xfer = 1;
+ case WRITE_SAME_10:
+ case WRITE_SAME_16:
+ cmd->xfer = dev->blocksize;
break;
- case READ_CAPACITY:
- req->cmd.xfer = 8;
+ case READ_CAPACITY_10:
+ cmd->xfer = 8;
break;
case READ_BLOCK_LIMITS:
- req->cmd.xfer = 6;
- break;
- case READ_POSITION:
- req->cmd.xfer = 20;
+ cmd->xfer = 6;
break;
case SEND_VOLUME_TAG:
- req->cmd.xfer *= 40;
- break;
- case MEDIUM_SCAN:
- req->cmd.xfer *= 8;
+ /* GPCMD_SET_STREAMING from multimedia commands. */
+ if (dev->type == TYPE_ROM) {
+ cmd->xfer = buf[10] | (buf[9] << 8);
+ } else {
+ cmd->xfer = buf[9] | (buf[8] << 8);
+ }
break;
- case WRITE_10:
- case WRITE_VERIFY:
case WRITE_6:
+ /* length 0 means 256 blocks */
+ if (cmd->xfer == 0) {
+ cmd->xfer = 256;
+ }
+ case WRITE_10:
+ case WRITE_VERIFY_10:
case WRITE_12:
case WRITE_VERIFY_12:
case WRITE_16:
case WRITE_VERIFY_16:
- req->cmd.xfer *= req->dev->blocksize;
+ cmd->xfer *= dev->blocksize;
break;
- case READ_10:
case READ_6:
case READ_REVERSE:
+ /* length 0 means 256 blocks */
+ if (cmd->xfer == 0) {
+ cmd->xfer = 256;
+ }
+ case READ_10:
case RECOVER_BUFFERED_DATA:
case READ_12:
case READ_16:
- req->cmd.xfer *= req->dev->blocksize;
+ cmd->xfer *= dev->blocksize;
+ break;
+ case FORMAT_UNIT:
+ /* MMC mandates the parameter list to be 12-bytes long. Parameters
+ * for block devices are restricted to the header right now. */
+ if (dev->type == TYPE_ROM && (buf[1] & 16)) {
+ cmd->xfer = 12;
+ } else {
+ cmd->xfer = (buf[1] & 16) == 0 ? 0 : (buf[1] & 32 ? 8 : 4);
+ }
break;
case INQUIRY:
- req->cmd.xfer = cmd[4] | (cmd[3] << 8);
+ case RECEIVE_DIAGNOSTIC:
+ case SEND_DIAGNOSTIC:
+ cmd->xfer = buf[4] | (buf[3] << 8);
break;
+ case READ_CD:
+ case READ_BUFFER:
+ case WRITE_BUFFER:
+ case SEND_CUE_SHEET:
+ cmd->xfer = buf[8] | (buf[7] << 8) | (buf[6] << 16);
+ break;
+ case PERSISTENT_RESERVE_OUT:
+ cmd->xfer = ldl_be_p(&buf[5]) & 0xffffffffULL;
+ break;
+ case ERASE_12:
+ if (dev->type == TYPE_ROM) {
+ /* MMC command GET PERFORMANCE. */
+ cmd->xfer = scsi_get_performance_length(buf[9] | (buf[8] << 8),
+ buf[10], buf[1] & 0x1f);
+ }
+ break;
+ case MECHANISM_STATUS:
+ case READ_DVD_STRUCTURE:
+ case SEND_DVD_STRUCTURE:
case MAINTENANCE_OUT:
case MAINTENANCE_IN:
- if (req->dev->type == TYPE_ROM) {
+ if (dev->type == TYPE_ROM) {
/* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */
- req->cmd.xfer = cmd[9] | (cmd[8] << 8);
+ cmd->xfer = buf[9] | (buf[8] << 8);
+ }
+ break;
+ case ATA_PASSTHROUGH_12:
+ if (dev->type == TYPE_ROM) {
+ /* BLANK command of MMC */
+ cmd->xfer = 0;
+ } else {
+ cmd->xfer = ata_passthrough_12_xfer_size(dev, buf);
}
break;
+ case ATA_PASSTHROUGH_16:
+ cmd->xfer = ata_passthrough_16_xfer_size(dev, buf);
+ break;
}
return 0;
}
-static int scsi_req_stream_length(SCSIRequest *req, uint8_t *cmd)
+static int scsi_req_stream_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
{
- switch(cmd[0]) {
+ switch (buf[0]) {
/* stream commands */
+ case ERASE_12:
+ case ERASE_16:
+ cmd->xfer = 0;
+ break;
case READ_6:
case READ_REVERSE:
case RECOVER_BUFFERED_DATA:
case WRITE_6:
- req->cmd.len = 6;
- req->cmd.xfer = cmd[4] | (cmd[3] << 8) | (cmd[2] << 16);
- if (cmd[1] & 0x01) /* fixed */
- req->cmd.xfer *= req->dev->blocksize;
+ cmd->xfer = buf[4] | (buf[3] << 8) | (buf[2] << 16);
+ if (buf[1] & 0x01) { /* fixed */
+ cmd->xfer *= dev->blocksize;
+ }
+ break;
+ case READ_16:
+ case READ_REVERSE_16:
+ case VERIFY_16:
+ case WRITE_16:
+ cmd->xfer = buf[14] | (buf[13] << 8) | (buf[12] << 16);
+ if (buf[1] & 0x01) { /* fixed */
+ cmd->xfer *= dev->blocksize;
+ }
break;
case REWIND:
- case START_STOP:
- req->cmd.len = 6;
- req->cmd.xfer = 0;
+ case LOAD_UNLOAD:
+ cmd->xfer = 0;
+ break;
+ case SPACE_16:
+ cmd->xfer = buf[13] | (buf[12] << 8);
+ break;
+ case READ_POSITION:
+ switch (buf[1] & 0x1f) /* operation code */ {
+ case SHORT_FORM_BLOCK_ID:
+ case SHORT_FORM_VENDOR_SPECIFIC:
+ cmd->xfer = 20;
+ break;
+ case LONG_FORM:
+ cmd->xfer = 32;
+ break;
+ case EXTENDED_FORM:
+ cmd->xfer = buf[8] | (buf[7] << 8);
+ break;
+ default:
+ return -1;
+ }
+
break;
+ case FORMAT_UNIT:
+ cmd->xfer = buf[4] | (buf[3] << 8);
+ break;
+ /* generic commands */
+ default:
+ return scsi_req_length(cmd, dev, buf);
+ }
+ return 0;
+}
+
+static int scsi_req_medium_changer_length(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
+{
+ switch (buf[0]) {
+ /* medium changer commands */
+ case EXCHANGE_MEDIUM:
+ case INITIALIZE_ELEMENT_STATUS:
+ case INITIALIZE_ELEMENT_STATUS_WITH_RANGE:
+ case MOVE_MEDIUM:
+ case POSITION_TO_ELEMENT:
+ cmd->xfer = 0;
+ break;
+ case READ_ELEMENT_STATUS:
+ cmd->xfer = buf[9] | (buf[8] << 8) | (buf[7] << 16);
+ break;
+
/* generic commands */
default:
- return scsi_req_length(req, cmd);
+ return scsi_req_length(cmd, dev, buf);
}
return 0;
}
-static void scsi_req_xfer_mode(SCSIRequest *req)
+
+static void scsi_cmd_xfer_mode(SCSICommand *cmd)
{
- switch (req->cmd.buf[0]) {
+ if (!cmd->xfer) {
+ cmd->mode = SCSI_XFER_NONE;
+ return;
+ }
+ switch (cmd->buf[0]) {
case WRITE_6:
case WRITE_10:
- case WRITE_VERIFY:
+ case WRITE_VERIFY_10:
case WRITE_12:
case WRITE_VERIFY_12:
case WRITE_16:
case SEARCH_HIGH:
case SEARCH_LOW:
case UPDATE_BLOCK:
- case WRITE_LONG:
- case WRITE_SAME:
+ case WRITE_LONG_10:
+ case WRITE_SAME_10:
+ case WRITE_SAME_16:
+ case UNMAP:
case SEARCH_HIGH_12:
case SEARCH_EQUAL_12:
case SEARCH_LOW_12:
- case SET_WINDOW:
case MEDIUM_SCAN:
case SEND_VOLUME_TAG:
- case WRITE_LONG_2:
+ case SEND_CUE_SHEET:
+ case SEND_DVD_STRUCTURE:
case PERSISTENT_RESERVE_OUT:
case MAINTENANCE_OUT:
- req->cmd.mode = SCSI_XFER_TO_DEV;
+ cmd->mode = SCSI_XFER_TO_DEV;
+ break;
+ case ATA_PASSTHROUGH_12:
+ case ATA_PASSTHROUGH_16:
+ /* T_DIR */
+ cmd->mode = (cmd->buf[2] & 0x8) ?
+ SCSI_XFER_FROM_DEV : SCSI_XFER_TO_DEV;
break;
default:
- if (req->cmd.xfer)
- req->cmd.mode = SCSI_XFER_FROM_DEV;
- else {
- req->cmd.mode = SCSI_XFER_NONE;
- }
+ cmd->mode = SCSI_XFER_FROM_DEV;
break;
}
}
-static uint64_t scsi_req_lba(SCSIRequest *req)
+static uint64_t scsi_cmd_lba(SCSICommand *cmd)
{
- uint8_t *buf = req->cmd.buf;
+ uint8_t *buf = cmd->buf;
uint64_t lba;
switch (buf[0] >> 5) {
case 0:
- lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) |
- (((uint64_t) buf[1] & 0x1f) << 16);
+ lba = ldl_be_p(&buf[0]) & 0x1fffff;
break;
case 1:
case 2:
- lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) |
- ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24);
+ case 5:
+ lba = ldl_be_p(&buf[2]) & 0xffffffffULL;
break;
case 4:
- lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) |
- ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) |
- ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) |
- ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56);
- break;
- case 5:
- lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) |
- ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24);
+ lba = ldq_be_p(&buf[2]);
break;
default:
lba = -1;
return lba;
}
-int scsi_req_parse(SCSIRequest *req, uint8_t *buf)
+int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
{
int rc;
- if (req->dev->type == TYPE_TAPE) {
- rc = scsi_req_stream_length(req, buf);
- } else {
- rc = scsi_req_length(req, buf);
+ switch (buf[0] >> 5) {
+ case 0:
+ cmd->len = 6;
+ break;
+ case 1:
+ case 2:
+ cmd->len = 10;
+ break;
+ case 4:
+ cmd->len = 16;
+ break;
+ case 5:
+ cmd->len = 12;
+ break;
+ default:
+ return -1;
+ }
+
+ switch (dev->type) {
+ case TYPE_TAPE:
+ rc = scsi_req_stream_length(cmd, dev, buf);
+ break;
+ case TYPE_MEDIUM_CHANGER:
+ rc = scsi_req_medium_changer_length(cmd, dev, buf);
+ break;
+ default:
+ rc = scsi_req_length(cmd, dev, buf);
+ break;
}
+
if (rc != 0)
return rc;
- memcpy(req->cmd.buf, buf, req->cmd.len);
- scsi_req_xfer_mode(req);
- req->cmd.lba = scsi_req_lba(req);
+ memcpy(cmd->buf, buf, cmd->len);
+ scsi_cmd_xfer_mode(cmd);
+ cmd->lba = scsi_cmd_lba(cmd);
return 0;
}
+void scsi_device_report_change(SCSIDevice *dev, SCSISense sense)
+{
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+
+ scsi_device_set_ua(dev, sense);
+ if (bus->info->change) {
+ bus->info->change(bus, dev, sense);
+ }
+}
+
+/*
+ * Predefined sense codes
+ */
+
+/* No sense data available */
+const struct SCSISense sense_code_NO_SENSE = {
+ .key = NO_SENSE , .asc = 0x00 , .ascq = 0x00
+};
+
+/* LUN not ready, Manual intervention required */
+const struct SCSISense sense_code_LUN_NOT_READY = {
+ .key = NOT_READY, .asc = 0x04, .ascq = 0x03
+};
+
+/* LUN not ready, Medium not present */
+const struct SCSISense sense_code_NO_MEDIUM = {
+ .key = NOT_READY, .asc = 0x3a, .ascq = 0x00
+};
+
+/* LUN not ready, medium removal prevented */
+const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED = {
+ .key = NOT_READY, .asc = 0x53, .ascq = 0x02
+};
+
+/* Hardware error, internal target failure */
+const struct SCSISense sense_code_TARGET_FAILURE = {
+ .key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00
+};
+
+/* Illegal request, invalid command operation code */
+const struct SCSISense sense_code_INVALID_OPCODE = {
+ .key = ILLEGAL_REQUEST, .asc = 0x20, .ascq = 0x00
+};
+
+/* Illegal request, LBA out of range */
+const struct SCSISense sense_code_LBA_OUT_OF_RANGE = {
+ .key = ILLEGAL_REQUEST, .asc = 0x21, .ascq = 0x00
+};
+
+/* Illegal request, Invalid field in CDB */
+const struct SCSISense sense_code_INVALID_FIELD = {
+ .key = ILLEGAL_REQUEST, .asc = 0x24, .ascq = 0x00
+};
+
+/* Illegal request, Invalid field in parameter list */
+const struct SCSISense sense_code_INVALID_PARAM = {
+ .key = ILLEGAL_REQUEST, .asc = 0x26, .ascq = 0x00
+};
+
+/* Illegal request, Parameter list length error */
+const struct SCSISense sense_code_INVALID_PARAM_LEN = {
+ .key = ILLEGAL_REQUEST, .asc = 0x1a, .ascq = 0x00
+};
+
+/* Illegal request, LUN not supported */
+const struct SCSISense sense_code_LUN_NOT_SUPPORTED = {
+ .key = ILLEGAL_REQUEST, .asc = 0x25, .ascq = 0x00
+};
+
+/* Illegal request, Saving parameters not supported */
+const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED = {
+ .key = ILLEGAL_REQUEST, .asc = 0x39, .ascq = 0x00
+};
+
+/* Illegal request, Incompatible medium installed */
+const struct SCSISense sense_code_INCOMPATIBLE_FORMAT = {
+ .key = ILLEGAL_REQUEST, .asc = 0x30, .ascq = 0x00
+};
+
+/* Illegal request, medium removal prevented */
+const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED = {
+ .key = ILLEGAL_REQUEST, .asc = 0x53, .ascq = 0x02
+};
+
+/* Command aborted, I/O process terminated */
+const struct SCSISense sense_code_IO_ERROR = {
+ .key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06
+};
+
+/* Command aborted, I_T Nexus loss occurred */
+const struct SCSISense sense_code_I_T_NEXUS_LOSS = {
+ .key = ABORTED_COMMAND, .asc = 0x29, .ascq = 0x07
+};
+
+/* Command aborted, Logical Unit failure */
+const struct SCSISense sense_code_LUN_FAILURE = {
+ .key = ABORTED_COMMAND, .asc = 0x3e, .ascq = 0x01
+};
+
+/* Unit attention, Capacity data has changed */
+const struct SCSISense sense_code_CAPACITY_CHANGED = {
+ .key = UNIT_ATTENTION, .asc = 0x2a, .ascq = 0x09
+};
+
+/* Unit attention, Power on, reset or bus device reset occurred */
+const struct SCSISense sense_code_RESET = {
+ .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x00
+};
+
+/* Unit attention, No medium */
+const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM = {
+ .key = UNIT_ATTENTION, .asc = 0x3a, .ascq = 0x00
+};
+
+/* Unit attention, Medium may have changed */
+const struct SCSISense sense_code_MEDIUM_CHANGED = {
+ .key = UNIT_ATTENTION, .asc = 0x28, .ascq = 0x00
+};
+
+/* Unit attention, Reported LUNs data has changed */
+const struct SCSISense sense_code_REPORTED_LUNS_CHANGED = {
+ .key = UNIT_ATTENTION, .asc = 0x3f, .ascq = 0x0e
+};
+
+/* Unit attention, Device internal reset */
+const struct SCSISense sense_code_DEVICE_INTERNAL_RESET = {
+ .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x04
+};
+
+/* Data Protection, Write Protected */
+const struct SCSISense sense_code_WRITE_PROTECTED = {
+ .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x00
+};
+
+/*
+ * scsi_build_sense
+ *
+ * Convert between fixed and descriptor sense buffers
+ */
+int scsi_build_sense(uint8_t *in_buf, int in_len,
+ uint8_t *buf, int len, bool fixed)
+{
+ bool fixed_in;
+ SCSISense sense;
+ if (!fixed && len < 8) {
+ return 0;
+ }
+
+ if (in_len == 0) {
+ sense.key = NO_SENSE;
+ sense.asc = 0;
+ sense.ascq = 0;
+ } else {
+ fixed_in = (in_buf[0] & 2) == 0;
+
+ if (fixed == fixed_in) {
+ memcpy(buf, in_buf, MIN(len, in_len));
+ return MIN(len, in_len);
+ }
+
+ if (fixed_in) {
+ sense.key = in_buf[2];
+ sense.asc = in_buf[12];
+ sense.ascq = in_buf[13];
+ } else {
+ sense.key = in_buf[1];
+ sense.asc = in_buf[2];
+ sense.ascq = in_buf[3];
+ }
+ }
+
+ memset(buf, 0, len);
+ if (fixed) {
+ /* Return fixed format sense buffer */
+ buf[0] = 0x70;
+ buf[2] = sense.key;
+ buf[7] = 10;
+ buf[12] = sense.asc;
+ buf[13] = sense.ascq;
+ return MIN(len, 18);
+ } else {
+ /* Return descriptor format sense buffer */
+ buf[0] = 0x72;
+ buf[1] = sense.key;
+ buf[2] = sense.asc;
+ buf[3] = sense.ascq;
+ return 8;
+ }
+}
+
static const char *scsi_command_name(uint8_t cmd)
{
static const char *names[] = {
[ TEST_UNIT_READY ] = "TEST_UNIT_READY",
- [ REZERO_UNIT ] = "REZERO_UNIT",
- /* REWIND and REZERO_UNIT use the same operation code */
+ [ REWIND ] = "REWIND",
[ REQUEST_SENSE ] = "REQUEST_SENSE",
[ FORMAT_UNIT ] = "FORMAT_UNIT",
[ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS",
- [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS",
+ [ REASSIGN_BLOCKS ] = "REASSIGN_BLOCKS/INITIALIZE ELEMENT STATUS",
+ /* LOAD_UNLOAD and INITIALIZE_ELEMENT_STATUS use the same operation code */
[ READ_6 ] = "READ_6",
[ WRITE_6 ] = "WRITE_6",
- [ SEEK_6 ] = "SEEK_6",
+ [ SET_CAPACITY ] = "SET_CAPACITY",
[ READ_REVERSE ] = "READ_REVERSE",
[ WRITE_FILEMARKS ] = "WRITE_FILEMARKS",
[ SPACE ] = "SPACE",
[ COPY ] = "COPY",
[ ERASE ] = "ERASE",
[ MODE_SENSE ] = "MODE_SENSE",
- [ START_STOP ] = "START_STOP",
+ [ START_STOP ] = "START_STOP/LOAD_UNLOAD",
+ /* LOAD_UNLOAD and START_STOP use the same operation code */
[ RECEIVE_DIAGNOSTIC ] = "RECEIVE_DIAGNOSTIC",
[ SEND_DIAGNOSTIC ] = "SEND_DIAGNOSTIC",
[ ALLOW_MEDIUM_REMOVAL ] = "ALLOW_MEDIUM_REMOVAL",
-
- [ SET_WINDOW ] = "SET_WINDOW",
- [ READ_CAPACITY ] = "READ_CAPACITY",
+ [ READ_CAPACITY_10 ] = "READ_CAPACITY_10",
[ READ_10 ] = "READ_10",
[ WRITE_10 ] = "WRITE_10",
- [ SEEK_10 ] = "SEEK_10",
- [ WRITE_VERIFY ] = "WRITE_VERIFY",
- [ VERIFY ] = "VERIFY",
+ [ SEEK_10 ] = "SEEK_10/POSITION_TO_ELEMENT",
+ /* SEEK_10 and POSITION_TO_ELEMENT use the same operation code */
+ [ WRITE_VERIFY_10 ] = "WRITE_VERIFY_10",
+ [ VERIFY_10 ] = "VERIFY_10",
[ SEARCH_HIGH ] = "SEARCH_HIGH",
[ SEARCH_EQUAL ] = "SEARCH_EQUAL",
[ SEARCH_LOW ] = "SEARCH_LOW",
[ SET_LIMITS ] = "SET_LIMITS",
- [ PRE_FETCH ] = "PRE_FETCH",
+ [ PRE_FETCH ] = "PRE_FETCH/READ_POSITION",
/* READ_POSITION and PRE_FETCH use the same operation code */
[ SYNCHRONIZE_CACHE ] = "SYNCHRONIZE_CACHE",
[ LOCK_UNLOCK_CACHE ] = "LOCK_UNLOCK_CACHE",
- [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA",
+ [ READ_DEFECT_DATA ] = "READ_DEFECT_DATA/INITIALIZE_ELEMENT_STATUS_WITH_RANGE",
+ /* READ_DEFECT_DATA and INITIALIZE_ELEMENT_STATUS_WITH_RANGE use the same operation code */
[ MEDIUM_SCAN ] = "MEDIUM_SCAN",
[ COMPARE ] = "COMPARE",
[ COPY_VERIFY ] = "COPY_VERIFY",
[ WRITE_BUFFER ] = "WRITE_BUFFER",
[ READ_BUFFER ] = "READ_BUFFER",
[ UPDATE_BLOCK ] = "UPDATE_BLOCK",
- [ READ_LONG ] = "READ_LONG",
- [ WRITE_LONG ] = "WRITE_LONG",
+ [ READ_LONG_10 ] = "READ_LONG_10",
+ [ WRITE_LONG_10 ] = "WRITE_LONG_10",
[ CHANGE_DEFINITION ] = "CHANGE_DEFINITION",
- [ WRITE_SAME ] = "WRITE_SAME",
+ [ WRITE_SAME_10 ] = "WRITE_SAME_10",
+ [ UNMAP ] = "UNMAP",
[ READ_TOC ] = "READ_TOC",
+ [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT",
+ [ SANITIZE ] = "SANITIZE",
+ [ GET_CONFIGURATION ] = "GET_CONFIGURATION",
[ LOG_SELECT ] = "LOG_SELECT",
[ LOG_SENSE ] = "LOG_SENSE",
[ MODE_SELECT_10 ] = "MODE_SELECT_10",
[ MODE_SENSE_10 ] = "MODE_SENSE_10",
[ PERSISTENT_RESERVE_IN ] = "PERSISTENT_RESERVE_IN",
[ PERSISTENT_RESERVE_OUT ] = "PERSISTENT_RESERVE_OUT",
+ [ WRITE_FILEMARKS_16 ] = "WRITE_FILEMARKS_16",
+ [ EXTENDED_COPY ] = "EXTENDED_COPY",
+ [ ATA_PASSTHROUGH_16 ] = "ATA_PASSTHROUGH_16",
+ [ ACCESS_CONTROL_IN ] = "ACCESS_CONTROL_IN",
+ [ ACCESS_CONTROL_OUT ] = "ACCESS_CONTROL_OUT",
+ [ READ_16 ] = "READ_16",
+ [ COMPARE_AND_WRITE ] = "COMPARE_AND_WRITE",
+ [ WRITE_16 ] = "WRITE_16",
+ [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16",
+ [ VERIFY_16 ] = "VERIFY_16",
+ [ PRE_FETCH_16 ] = "PRE_FETCH_16",
+ [ SYNCHRONIZE_CACHE_16 ] = "SPACE_16/SYNCHRONIZE_CACHE_16",
+ /* SPACE_16 and SYNCHRONIZE_CACHE_16 use the same operation code */
+ [ LOCATE_16 ] = "LOCATE_16",
+ [ WRITE_SAME_16 ] = "ERASE_16/WRITE_SAME_16",
+ /* ERASE_16 and WRITE_SAME_16 use the same operation code */
+ [ SERVICE_ACTION_IN_16 ] = "SERVICE_ACTION_IN_16",
+ [ WRITE_LONG_16 ] = "WRITE_LONG_16",
+ [ REPORT_LUNS ] = "REPORT_LUNS",
+ [ ATA_PASSTHROUGH_12 ] = "BLANK/ATA_PASSTHROUGH_12",
[ MOVE_MEDIUM ] = "MOVE_MEDIUM",
+ [ EXCHANGE_MEDIUM ] = "EXCHANGE MEDIUM",
[ READ_12 ] = "READ_12",
[ WRITE_12 ] = "WRITE_12",
+ [ ERASE_12 ] = "ERASE_12/GET_PERFORMANCE",
+ /* ERASE_12 and GET_PERFORMANCE use the same operation code */
+ [ SERVICE_ACTION_IN_12 ] = "SERVICE_ACTION_IN_12",
[ WRITE_VERIFY_12 ] = "WRITE_VERIFY_12",
+ [ VERIFY_12 ] = "VERIFY_12",
[ SEARCH_HIGH_12 ] = "SEARCH_HIGH_12",
[ SEARCH_EQUAL_12 ] = "SEARCH_EQUAL_12",
[ SEARCH_LOW_12 ] = "SEARCH_LOW_12",
[ READ_ELEMENT_STATUS ] = "READ_ELEMENT_STATUS",
- [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG",
- [ WRITE_LONG_2 ] = "WRITE_LONG_2",
-
- [ REPORT_DENSITY_SUPPORT ] = "REPORT_DENSITY_SUPPORT",
- [ GET_CONFIGURATION ] = "GET_CONFIGURATION",
- [ READ_16 ] = "READ_16",
- [ WRITE_16 ] = "WRITE_16",
- [ WRITE_VERIFY_16 ] = "WRITE_VERIFY_16",
- [ SERVICE_ACTION_IN ] = "SERVICE_ACTION_IN",
- [ REPORT_LUNS ] = "REPORT_LUNS",
- [ LOAD_UNLOAD ] = "LOAD_UNLOAD",
+ [ SEND_VOLUME_TAG ] = "SEND_VOLUME_TAG/SET_STREAMING",
+ /* SEND_VOLUME_TAG and SET_STREAMING use the same operation code */
+ [ READ_CD ] = "READ_CD",
+ [ READ_DEFECT_DATA_12 ] = "READ_DEFECT_DATA_12",
+ [ READ_DVD_STRUCTURE ] = "READ_DVD_STRUCTURE",
+ [ RESERVE_TRACK ] = "RESERVE_TRACK",
+ [ SEND_CUE_SHEET ] = "SEND_CUE_SHEET",
+ [ SEND_DVD_STRUCTURE ] = "SEND_DVD_STRUCTURE",
[ SET_CD_SPEED ] = "SET_CD_SPEED",
- [ BLANK ] = "BLANK",
+ [ SET_READ_AHEAD ] = "SET_READ_AHEAD",
+ [ ALLOW_OVERWRITE ] = "ALLOW_OVERWRITE",
+ [ MECHANISM_STATUS ] = "MECHANISM_STATUS",
};
if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL)
return names[cmd];
}
+SCSIRequest *scsi_req_ref(SCSIRequest *req)
+{
+ assert(req->refcount > 0);
+ req->refcount++;
+ return req;
+}
+
+void scsi_req_unref(SCSIRequest *req)
+{
+ assert(req->refcount > 0);
+ if (--req->refcount == 0) {
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, req->dev->qdev.parent_bus);
+ if (bus->info->free_request && req->hba_private) {
+ bus->info->free_request(bus, req->hba_private);
+ }
+ if (req->ops->free_req) {
+ req->ops->free_req(req);
+ }
+ g_free(req);
+ }
+}
+
+/* Tell the device that we finished processing this chunk of I/O. It
+ will start the next chunk or complete the command. */
+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->ops->write_data(req);
+ } else {
+ req->ops->read_data(req);
+ }
+}
+
+/* Called by the devices when data is ready for the HBA. The HBA should
+ start a DMA operation to read or fill the device's data buffer.
+ Once it completes, calling scsi_req_continue will restart I/O. */
+void scsi_req_data(SCSIRequest *req, int len)
+{
+ uint8_t *buf;
+ if (req->io_canceled) {
+ trace_scsi_req_data_canceled(req->dev->id, req->lun, req->tag, len);
+ return;
+ }
+ trace_scsi_req_data(req->dev->id, req->lun, req->tag, len);
+ assert(req->cmd.mode != SCSI_XFER_NONE);
+ if (!req->sg) {
+ req->resid -= len;
+ req->bus->info->transfer_data(req, len);
+ return;
+ }
+
+ /* If the device calls scsi_req_data and the HBA specified a
+ * scatter/gather list, the transfer has to happen in a single
+ * step. */
+ assert(!req->dma_started);
+ req->dma_started = true;
+
+ buf = scsi_req_get_buf(req);
+ if (req->cmd.mode == SCSI_XFER_FROM_DEV) {
+ req->resid = dma_buf_read(buf, len, req->sg);
+ } else {
+ req->resid = dma_buf_write(buf, len, req->sg);
+ }
+ scsi_req_continue(req);
+}
+
void scsi_req_print(SCSIRequest *req)
{
FILE *fp = stderr;
}
}
-void scsi_req_complete(SCSIRequest *req)
+void scsi_req_complete(SCSIRequest *req, int status)
+{
+ assert(req->status == -1);
+ req->status = status;
+
+ assert(req->sense_len <= sizeof(req->sense));
+ if (status == GOOD) {
+ req->sense_len = 0;
+ }
+
+ if (req->sense_len) {
+ memcpy(req->dev->sense, req->sense, req->sense_len);
+ req->dev->sense_len = req->sense_len;
+ req->dev->sense_is_ua = (req->ops == &reqops_unit_attention);
+ } else {
+ req->dev->sense_len = 0;
+ req->dev->sense_is_ua = false;
+ }
+
+ /*
+ * Unit attention state is now stored in the device's sense buffer
+ * if the HBA didn't do autosense. Clear the pending unit attention
+ * flags.
+ */
+ scsi_clear_unit_attention(req);
+
+ scsi_req_ref(req);
+ scsi_req_dequeue(req);
+ req->bus->info->complete(req, req->status, req->resid);
+ scsi_req_unref(req);
+}
+
+void scsi_req_cancel(SCSIRequest *req)
+{
+ trace_scsi_req_cancel(req->dev->id, req->lun, req->tag);
+ if (!req->enqueued) {
+ return;
+ }
+ scsi_req_ref(req);
+ scsi_req_dequeue(req);
+ req->io_canceled = true;
+ if (req->ops->cancel_io) {
+ req->ops->cancel_io(req);
+ }
+ if (req->bus->info->cancel) {
+ req->bus->info->cancel(req);
+ }
+ scsi_req_unref(req);
+}
+
+void scsi_req_abort(SCSIRequest *req, int status)
{
- assert(req->status != -1);
+ if (!req->enqueued) {
+ return;
+ }
+ scsi_req_ref(req);
scsi_req_dequeue(req);
- req->bus->complete(req->bus, SCSI_REASON_DONE,
- req->tag,
- req->status);
+ req->io_canceled = true;
+ if (req->ops->cancel_io) {
+ req->ops->cancel_io(req);
+ }
+ scsi_req_complete(req, status);
+ scsi_req_unref(req);
+}
+
+static int scsi_ua_precedence(SCSISense sense)
+{
+ if (sense.key != UNIT_ATTENTION) {
+ return INT_MAX;
+ }
+ if (sense.asc == 0x29 && sense.ascq == 0x04) {
+ /* DEVICE INTERNAL RESET goes with POWER ON OCCURRED */
+ return 1;
+ } else if (sense.asc == 0x3F && sense.ascq == 0x01) {
+ /* MICROCODE HAS BEEN CHANGED goes with SCSI BUS RESET OCCURRED */
+ return 2;
+ } else if (sense.asc == 0x29 && (sense.ascq == 0x05 || sense.ascq == 0x06)) {
+ /* These two go with "all others". */
+ ;
+ } else if (sense.asc == 0x29 && sense.ascq <= 0x07) {
+ /* POWER ON, RESET OR BUS DEVICE RESET OCCURRED = 0
+ * POWER ON OCCURRED = 1
+ * SCSI BUS RESET OCCURRED = 2
+ * BUS DEVICE RESET FUNCTION OCCURRED = 3
+ * I_T NEXUS LOSS OCCURRED = 7
+ */
+ return sense.ascq;
+ } else if (sense.asc == 0x2F && sense.ascq == 0x01) {
+ /* COMMANDS CLEARED BY POWER LOSS NOTIFICATION */
+ return 8;
+ }
+ return (sense.asc << 8) | sense.ascq;
+}
+
+void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense)
+{
+ int prec1, prec2;
+ if (sense.key != UNIT_ATTENTION) {
+ return;
+ }
+ trace_scsi_device_set_ua(sdev->id, sdev->lun, sense.key,
+ sense.asc, sense.ascq);
+
+ /*
+ * Override a pre-existing unit attention condition, except for a more
+ * important reset condition.
+ */
+ prec1 = scsi_ua_precedence(sdev->unit_attention);
+ prec2 = scsi_ua_precedence(sense);
+ if (prec2 < prec1) {
+ sdev->unit_attention = sense;
+ }
+}
+
+void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense)
+{
+ SCSIRequest *req;
+
+ while (!QTAILQ_EMPTY(&sdev->requests)) {
+ req = QTAILQ_FIRST(&sdev->requests);
+ scsi_req_cancel(req);
+ }
+
+ scsi_device_set_ua(sdev, sense);
+}
+
+static char *scsibus_get_dev_path(DeviceState *dev)
+{
+ SCSIDevice *d = DO_UPCAST(SCSIDevice, qdev, dev);
+ DeviceState *hba = dev->parent_bus->parent;
+ char *id;
+ char *path;
+
+ id = qdev_get_dev_path(hba);
+ if (id) {
+ path = g_strdup_printf("%s/%d:%d:%d", id, d->channel, d->id, d->lun);
+ } else {
+ path = g_strdup_printf("%d:%d:%d", d->channel, d->id, d->lun);
+ }
+ g_free(id);
+ return path;
}
static char *scsibus_get_fw_dev_path(DeviceState *dev)
{
- SCSIDevice *d = (SCSIDevice*)dev;
- SCSIBus *bus = scsi_bus_from_device(d);
+ SCSIDevice *d = SCSI_DEVICE(dev);
char path[100];
- int i;
- for (i = 0; i < bus->ndev; i++) {
- if (bus->devs[i] == d) {
- break;
+ snprintf(path, sizeof(path), "channel@%x/%s@%x,%x", d->channel,
+ qdev_fw_name(dev), d->id, d->lun);
+
+ return strdup(path);
+}
+
+SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int id, int lun)
+{
+ BusChild *kid;
+ SCSIDevice *target_dev = NULL;
+
+ QTAILQ_FOREACH_REVERSE(kid, &bus->qbus.children, ChildrenHead, sibling) {
+ DeviceState *qdev = kid->child;
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->channel == channel && dev->id == id) {
+ if (dev->lun == lun) {
+ return dev;
+ }
+ target_dev = dev;
}
}
+ return target_dev;
+}
- assert(i != bus->ndev);
+/* SCSI request list. For simplicity, pv points to the whole device */
- snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i);
+static void put_scsi_requests(QEMUFile *f, void *pv, size_t size)
+{
+ SCSIDevice *s = pv;
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, s->qdev.parent_bus);
+ SCSIRequest *req;
- return strdup(path);
+ QTAILQ_FOREACH(req, &s->requests, next) {
+ assert(!req->io_canceled);
+ assert(req->status == -1);
+ assert(req->enqueued);
+
+ qemu_put_sbyte(f, req->retry ? 1 : 2);
+ qemu_put_buffer(f, req->cmd.buf, sizeof(req->cmd.buf));
+ qemu_put_be32s(f, &req->tag);
+ qemu_put_be32s(f, &req->lun);
+ if (bus->info->save_request) {
+ bus->info->save_request(f, req);
+ }
+ if (req->ops->save_request) {
+ req->ops->save_request(f, req);
+ }
+ }
+ qemu_put_sbyte(f, 0);
}
+
+static int get_scsi_requests(QEMUFile *f, void *pv, size_t size)
+{
+ SCSIDevice *s = pv;
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, s->qdev.parent_bus);
+ int8_t sbyte;
+
+ while ((sbyte = qemu_get_sbyte(f)) > 0) {
+ uint8_t buf[SCSI_CMD_BUF_SIZE];
+ uint32_t tag;
+ uint32_t lun;
+ SCSIRequest *req;
+
+ qemu_get_buffer(f, buf, sizeof(buf));
+ qemu_get_be32s(f, &tag);
+ qemu_get_be32s(f, &lun);
+ req = scsi_req_new(s, tag, lun, buf, NULL);
+ req->retry = (sbyte == 1);
+ if (bus->info->load_request) {
+ req->hba_private = bus->info->load_request(f, req);
+ }
+ if (req->ops->load_request) {
+ req->ops->load_request(f, req);
+ }
+
+ /* Just restart it later. */
+ scsi_req_enqueue_internal(req);
+
+ /* At this point, the request will be kept alive by the reference
+ * added by scsi_req_enqueue_internal, so we can release our reference.
+ * The HBA of course will add its own reference in the load_request
+ * callback if it needs to hold on the SCSIRequest.
+ */
+ scsi_req_unref(req);
+ }
+
+ return 0;
+}
+
+static int scsi_qdev_unplug(DeviceState *qdev)
+{
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+ SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
+
+ if (bus->info->hot_unplug) {
+ bus->info->hot_unplug(bus, dev);
+ }
+ return qdev_simple_unplug_cb(qdev);
+}
+
+static const VMStateInfo vmstate_info_scsi_requests = {
+ .name = "scsi-requests",
+ .get = get_scsi_requests,
+ .put = put_scsi_requests,
+};
+
+const VMStateDescription vmstate_scsi_device = {
+ .name = "SCSIDevice",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(unit_attention.key, SCSIDevice),
+ VMSTATE_UINT8(unit_attention.asc, SCSIDevice),
+ VMSTATE_UINT8(unit_attention.ascq, SCSIDevice),
+ VMSTATE_BOOL(sense_is_ua, SCSIDevice),
+ VMSTATE_UINT8_ARRAY(sense, SCSIDevice, SCSI_SENSE_BUF_SIZE),
+ VMSTATE_UINT32(sense_len, SCSIDevice),
+ {
+ .name = "requests",
+ .version_id = 0,
+ .field_exists = NULL,
+ .size = 0, /* ouch */
+ .info = &vmstate_info_scsi_requests,
+ .flags = VMS_SINGLE,
+ .offset = 0,
+ },
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void scsi_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *k = DEVICE_CLASS(klass);
+ k->bus_type = TYPE_SCSI_BUS;
+ k->init = scsi_qdev_init;
+ k->unplug = scsi_qdev_unplug;
+ k->exit = scsi_qdev_exit;
+ k->props = scsi_props;
+}
+
+static TypeInfo scsi_device_type_info = {
+ .name = TYPE_SCSI_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(SCSIDevice),
+ .abstract = true,
+ .class_size = sizeof(SCSIDeviceClass),
+ .class_init = scsi_device_class_init,
+};
+
+static void scsi_register_types(void)
+{
+ type_register_static(&scsi_bus_info);
+ type_register_static(&scsi_device_type_info);
+}
+
+type_init(scsi_register_types)
projects / sdk / emulator / qemu.git / blobdiff