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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/scsi/scsi-bus.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/scsi/scsi-bus.c')
-rw-r--r--qemu/hw/scsi/scsi-bus.c2062
1 files changed, 0 insertions, 2062 deletions
diff --git a/qemu/hw/scsi/scsi-bus.c b/qemu/hw/scsi/scsi-bus.c
deleted file mode 100644
index ad6f398c3..000000000
--- a/qemu/hw/scsi/scsi-bus.c
+++ /dev/null
@@ -1,2062 +0,0 @@
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "qapi/error.h"
-#include "qemu/error-report.h"
-#include "hw/scsi/scsi.h"
-#include "block/scsi.h"
-#include "hw/qdev.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
-#include "trace.h"
-#include "sysemu/dma.h"
-#include "qemu/cutils.h"
-
-static char *scsibus_get_dev_path(DeviceState *dev);
-static char *scsibus_get_fw_dev_path(DeviceState *dev);
-static void scsi_req_dequeue(SCSIRequest *req);
-static uint8_t *scsi_target_alloc_buf(SCSIRequest *req, size_t len);
-static void scsi_target_free_buf(SCSIRequest *req);
-
-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);
- HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
-
- k->get_dev_path = scsibus_get_dev_path;
- k->get_fw_dev_path = scsibus_get_fw_dev_path;
- hc->unplug = qdev_simple_device_unplug_cb;
-}
-
-static const TypeInfo scsi_bus_info = {
- .name = TYPE_SCSI_BUS,
- .parent = TYPE_BUS,
- .instance_size = sizeof(SCSIBus),
- .class_init = scsi_bus_class_init,
- .interfaces = (InterfaceInfo[]) {
- { TYPE_HOTPLUG_HANDLER },
- { }
- }
-};
-static int next_scsi_bus;
-
-static void scsi_device_realize(SCSIDevice *s, Error **errp)
-{
- SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
- if (sc->realize) {
- sc->realize(s, errp);
- }
-}
-
-int scsi_bus_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
- void *hba_private)
-{
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
- int rc;
-
- assert(cmd->len == 0);
- rc = scsi_req_parse_cdb(dev, cmd, buf);
- if (bus->info->parse_cdb) {
- rc = bus->info->parse_cdb(dev, cmd, buf, hba_private);
- }
- return rc;
-}
-
-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;
-}
-
-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, size_t bus_size, DeviceState *host,
- const SCSIBusInfo *info, const char *bus_name)
-{
- qbus_create_inplace(bus, bus_size, TYPE_SCSI_BUS, host, bus_name);
- bus->busnr = next_scsi_bus++;
- bus->info = info;
- qbus_set_bus_hotplug_handler(BUS(bus), &error_abort);
-}
-
-static void scsi_dma_restart_bh(void *opaque)
-{
- SCSIDevice *s = opaque;
- SCSIRequest *req, *next;
-
- 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:
- scsi_req_dequeue(req);
- scsi_req_enqueue(req);
- break;
- }
- }
- scsi_req_unref(req);
- }
-}
-
-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) {
- AioContext *ctx = blk_get_aio_context(s->conf.blk);
- s->bh = aio_bh_new(ctx, scsi_dma_restart_bh, s);
- qemu_bh_schedule(s->bh);
- }
-}
-
-static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
-{
- SCSIDevice *dev = SCSI_DEVICE(qdev);
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
- SCSIDevice *d;
- Error *local_err = NULL;
-
- if (dev->channel > bus->info->max_channel) {
- error_setg(errp, "bad scsi channel id: %d", dev->channel);
- return;
- }
- if (dev->id != -1 && dev->id > bus->info->max_target) {
- error_setg(errp, "bad scsi device id: %d", dev->id);
- return;
- }
- if (dev->lun != -1 && dev->lun > bus->info->max_lun) {
- error_setg(errp, "bad scsi device lun: %d", dev->lun);
- return;
- }
-
- 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_setg(errp, "no free target");
- return;
- }
- 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_setg(errp, "no free lun");
- return;
- }
- dev->lun = lun;
- } else {
- d = scsi_device_find(bus, dev->channel, dev->id, dev->lun);
- assert(d);
- if (d->lun == dev->lun && dev != d) {
- error_setg(errp, "lun already used by '%s'", d->qdev.id);
- return;
- }
- }
-
- QTAILQ_INIT(&dev->requests);
- scsi_device_realize(dev, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- dev->vmsentry = qemu_add_vm_change_state_handler(scsi_dma_restart_cb,
- dev);
-}
-
-static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
-{
- SCSIDevice *dev = SCSI_DEVICE(qdev);
-
- if (dev->vmsentry) {
- qemu_del_vm_change_state_handler(dev->vmsentry);
- }
-
- scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));
- blockdev_mark_auto_del(dev->conf.blk);
-}
-
-/* handle legacy '-drive if=scsi,...' cmd line args */
-SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
- int unit, bool removable, int bootindex,
- const char *serial, Error **errp)
-{
- const char *driver;
- char *name;
- DeviceState *dev;
- Error *err = NULL;
-
- driver = blk_is_sg(blk) ? "scsi-generic" : "scsi-disk";
- dev = qdev_create(&bus->qbus, driver);
- name = g_strdup_printf("legacy[%d]", unit);
- object_property_add_child(OBJECT(bus), name, OBJECT(dev), NULL);
- g_free(name);
-
- qdev_prop_set_uint32(dev, "scsi-id", unit);
- if (bootindex >= 0) {
- object_property_set_int(OBJECT(dev), bootindex, "bootindex",
- &error_abort);
- }
- if (object_property_find(OBJECT(dev), "removable", NULL)) {
- qdev_prop_set_bit(dev, "removable", removable);
- }
- if (serial && object_property_find(OBJECT(dev), "serial", NULL)) {
- qdev_prop_set_string(dev, "serial", serial);
- }
- qdev_prop_set_drive(dev, "drive", blk, &err);
- if (err) {
- error_propagate(errp, err);
- object_unparent(OBJECT(dev));
- return NULL;
- }
- object_property_set_bool(OBJECT(dev), true, "realized", &err);
- if (err != NULL) {
- error_propagate(errp, err);
- object_unparent(OBJECT(dev));
- return NULL;
- }
- return SCSI_DEVICE(dev);
-}
-
-void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp)
-{
- Location loc;
- DriveInfo *dinfo;
- int unit;
- Error *err = NULL;
-
- loc_push_none(&loc);
- 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);
- scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo),
- unit, false, -1, NULL, &err);
- if (err != NULL) {
- error_propagate(errp, err);
- break;
- }
- }
- loc_pop(&loc);
-}
-
-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->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;
- int buf_len;
-};
-
-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;
- }
-
- scsi_target_alloc_buf(&r->req, n + 8);
-
- len = MIN(n + 8, r->req.cmd.xfer & ~7);
- memset(r->buf, 0, len);
- stl_be_p(&r->buf[0], 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);
-
- scsi_target_alloc_buf(&r->req, SCSI_INQUIRY_LEN);
-
- 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 < r->buf_len);
- 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, SCSI_INQUIRY_LEN);
- 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_hw_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:
- scsi_target_alloc_buf(&r->req, SCSI_SENSE_LEN);
- r->len = scsi_device_get_sense(r->req.dev, r->buf,
- MIN(req->cmd.xfer, r->buf_len),
- (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;
- case TEST_UNIT_READY:
- 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 uint8_t *scsi_target_alloc_buf(SCSIRequest *req, size_t len)
-{
- SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req);
-
- r->buf = g_malloc(len);
- r->buf_len = len;
-
- return r->buf;
-}
-
-static void scsi_target_free_buf(SCSIRequest *req)
-{
- SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req);
-
- g_free(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,
- .free_req = scsi_target_free_buf,
-};
-
-
-SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
- uint32_t tag, uint32_t lun, void *hba_private)
-{
- SCSIRequest *req;
- SCSIBus *bus = scsi_bus_from_device(d);
- BusState *qbus = BUS(bus);
- const int memset_off = offsetof(SCSIRequest, sense)
- + sizeof(req->sense);
-
- req = g_malloc(reqops->size);
- memset((uint8_t *)req + memset_off, 0, reqops->size - memset_off);
- req->refcount = 1;
- req->bus = bus;
- req->dev = d;
- req->tag = tag;
- req->lun = lun;
- req->hba_private = hba_private;
- req->status = -1;
- req->ops = reqops;
- object_ref(OBJECT(d));
- object_ref(OBJECT(qbus->parent));
- notifier_list_init(&req->cancel_notifiers);
- trace_scsi_req_alloc(req->dev->id, req->lun, req->tag);
- return req;
-}
-
-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);
- const SCSIReqOps *ops;
- SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(d);
- SCSIRequest *req;
- SCSICommand cmd = { .len = 0 };
- int ret;
-
- 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))) {
- ops = &reqops_unit_attention;
- } else if (lun != d->lun ||
- buf[0] == REPORT_LUNS ||
- (buf[0] == REQUEST_SENSE && d->sense_len)) {
- ops = &reqops_target_command;
- } else {
- ops = NULL;
- }
-
- if (ops != NULL || !sc->parse_cdb) {
- ret = scsi_req_parse_cdb(d, &cmd, buf);
- } else {
- ret = sc->parse_cdb(d, &cmd, buf, hba_private);
- }
-
- if (ret != 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 {
- assert(cmd.len != 0);
- 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 (ops) {
- req = scsi_req_alloc(ops, d, tag, lun, hba_private);
- } else {
- req = scsi_device_alloc_req(d, tag, lun, buf, hba_private);
- }
- }
-
- 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);
- }
-}
-
-static int scsi_get_performance_length(int num_desc, int type, int data_type)
-{
- /* 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 ata_passthrough_12_xfer(SCSIDevice *dev, uint8_t *buf)
-{
- 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[3];
- break;
- case 2:
- xfer = buf[4];
- break;
- }
-
- return xfer * unit;
-}
-
-static int ata_passthrough_16_xfer(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;
-}
-
-uint32_t scsi_data_cdb_xfer(uint8_t *buf)
-{
- if ((buf[0] >> 5) == 0 && buf[4] == 0) {
- return 256;
- } else {
- return scsi_cdb_xfer(buf);
- }
-}
-
-uint32_t scsi_cdb_xfer(uint8_t *buf)
-{
- switch (buf[0] >> 5) {
- case 0:
- return buf[4];
- break;
- case 1:
- case 2:
- return lduw_be_p(&buf[7]);
- break;
- case 4:
- return ldl_be_p(&buf[10]) & 0xffffffffULL;
- break;
- case 5:
- return ldl_be_p(&buf[6]) & 0xffffffffULL;
- break;
- default:
- return -1;
- }
-}
-
-static int scsi_req_xfer(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
-{
- cmd->xfer = scsi_cdb_xfer(buf);
- switch (buf[0]) {
- case TEST_UNIT_READY:
- case REWIND:
- case START_STOP:
- case SET_CAPACITY:
- case WRITE_FILEMARKS:
- case WRITE_FILEMARKS_16:
- case SPACE:
- case RESERVE:
- case RELEASE:
- case ERASE:
- case ALLOW_MEDIUM_REMOVAL:
- case SEEK_10:
- case SYNCHRONIZE_CACHE:
- case SYNCHRONIZE_CACHE_16:
- case LOCATE_16:
- case LOCK_UNLOCK_CACHE:
- case SET_CD_SPEED:
- case SET_LIMITS:
- case WRITE_LONG_10:
- case UPDATE_BLOCK:
- case RESERVE_TRACK:
- case SET_READ_AHEAD:
- case PRE_FETCH:
- case PRE_FETCH_16:
- case ALLOW_OVERWRITE:
- cmd->xfer = 0;
- break;
- case VERIFY_10:
- case VERIFY_12:
- case VERIFY_16:
- if ((buf[1] & 2) == 0) {
- cmd->xfer = 0;
- } else if ((buf[1] & 4) != 0) {
- cmd->xfer = 1;
- }
- cmd->xfer *= dev->blocksize;
- break;
- case MODE_SENSE:
- break;
- case WRITE_SAME_10:
- case WRITE_SAME_16:
- cmd->xfer = dev->blocksize;
- break;
- case READ_CAPACITY_10:
- cmd->xfer = 8;
- break;
- case READ_BLOCK_LIMITS:
- cmd->xfer = 6;
- break;
- case SEND_VOLUME_TAG:
- /* 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_6:
- /* length 0 means 256 blocks */
- if (cmd->xfer == 0) {
- cmd->xfer = 256;
- }
- /* fall through */
- case WRITE_10:
- case WRITE_VERIFY_10:
- case WRITE_12:
- case WRITE_VERIFY_12:
- case WRITE_16:
- case WRITE_VERIFY_16:
- cmd->xfer *= dev->blocksize;
- break;
- case READ_6:
- case READ_REVERSE:
- /* length 0 means 256 blocks */
- if (cmd->xfer == 0) {
- cmd->xfer = 256;
- }
- /* fall through */
- case READ_10:
- case READ_12:
- case READ_16:
- 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:
- 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 (dev->type == TYPE_ROM) {
- /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */
- 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(dev, buf);
- }
- break;
- case ATA_PASSTHROUGH_16:
- cmd->xfer = ata_passthrough_16_xfer(dev, buf);
- break;
- }
- return 0;
-}
-
-static int scsi_req_stream_xfer(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf)
-{
- 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:
- 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 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_xfer(cmd, dev, buf);
- }
- return 0;
-}
-
-static int scsi_req_medium_changer_xfer(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_xfer(cmd, dev, buf);
- }
- return 0;
-}
-
-
-static void scsi_cmd_xfer_mode(SCSICommand *cmd)
-{
- if (!cmd->xfer) {
- cmd->mode = SCSI_XFER_NONE;
- return;
- }
- switch (cmd->buf[0]) {
- case WRITE_6:
- case WRITE_10:
- case WRITE_VERIFY_10:
- case WRITE_12:
- case WRITE_VERIFY_12:
- case WRITE_16:
- case WRITE_VERIFY_16:
- case VERIFY_10:
- case VERIFY_12:
- case VERIFY_16:
- case COPY:
- case COPY_VERIFY:
- case COMPARE:
- case CHANGE_DEFINITION:
- case LOG_SELECT:
- case MODE_SELECT:
- case MODE_SELECT_10:
- case SEND_DIAGNOSTIC:
- case WRITE_BUFFER:
- case FORMAT_UNIT:
- case REASSIGN_BLOCKS:
- case SEARCH_EQUAL:
- case SEARCH_HIGH:
- case SEARCH_LOW:
- case UPDATE_BLOCK:
- 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 MEDIUM_SCAN:
- case SEND_VOLUME_TAG:
- case SEND_CUE_SHEET:
- case SEND_DVD_STRUCTURE:
- case PERSISTENT_RESERVE_OUT:
- case MAINTENANCE_OUT:
- 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:
- cmd->mode = SCSI_XFER_FROM_DEV;
- break;
- }
-}
-
-static uint64_t scsi_cmd_lba(SCSICommand *cmd)
-{
- uint8_t *buf = cmd->buf;
- uint64_t lba;
-
- switch (buf[0] >> 5) {
- case 0:
- lba = ldl_be_p(&buf[0]) & 0x1fffff;
- break;
- case 1:
- case 2:
- case 5:
- lba = ldl_be_p(&buf[2]) & 0xffffffffULL;
- break;
- case 4:
- lba = ldq_be_p(&buf[2]);
- break;
- default:
- lba = -1;
-
- }
- return lba;
-}
-
-int scsi_cdb_length(uint8_t *buf) {
- int cdb_len;
-
- switch (buf[0] >> 5) {
- case 0:
- cdb_len = 6;
- break;
- case 1:
- case 2:
- cdb_len = 10;
- break;
- case 4:
- cdb_len = 16;
- break;
- case 5:
- cdb_len = 12;
- break;
- default:
- cdb_len = -1;
- }
- return cdb_len;
-}
-
-int scsi_req_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf)
-{
- int rc;
- int len;
-
- cmd->lba = -1;
- len = scsi_cdb_length(buf);
- if (len < 0) {
- return -1;
- }
-
- cmd->len = len;
- switch (dev->type) {
- case TYPE_TAPE:
- rc = scsi_req_stream_xfer(cmd, dev, buf);
- break;
- case TYPE_MEDIUM_CHANGER:
- rc = scsi_req_medium_changer_xfer(cmd, dev, buf);
- break;
- default:
- rc = scsi_req_xfer(cmd, dev, buf);
- break;
- }
-
- if (rc != 0)
- return rc;
-
- 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
-};
-
-/* Illegal request, Invalid Transfer Tag */
-const struct SCSISense sense_code_INVALID_TAG = {
- .key = ILLEGAL_REQUEST, .asc = 0x4b, .ascq = 0x01
-};
-
-/* 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
-};
-
-/* Command aborted, Overlapped Commands Attempted */
-const struct SCSISense sense_code_OVERLAPPED_COMMANDS = {
- .key = ABORTED_COMMAND, .asc = 0x4e, .ascq = 0x00
-};
-
-/* 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
-};
-
-/* Data Protection, Space Allocation Failed Write Protect */
-const struct SCSISense sense_code_SPACE_ALLOC_FAILED = {
- .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x07
-};
-
-/*
- * 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, SCSI_SENSE_LEN);
- } else {
- /* Return descriptor format sense buffer */
- buf[0] = 0x72;
- buf[1] = sense.key;
- buf[2] = sense.asc;
- buf[3] = sense.ascq;
- return 8;
- }
-}
-
-const char *scsi_command_name(uint8_t cmd)
-{
- static const char *names[] = {
- [ TEST_UNIT_READY ] = "TEST_UNIT_READY",
- [ REWIND ] = "REWIND",
- [ REQUEST_SENSE ] = "REQUEST_SENSE",
- [ FORMAT_UNIT ] = "FORMAT_UNIT",
- [ READ_BLOCK_LIMITS ] = "READ_BLOCK_LIMITS",
- [ 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",
- [ SET_CAPACITY ] = "SET_CAPACITY",
- [ READ_REVERSE ] = "READ_REVERSE",
- [ WRITE_FILEMARKS ] = "WRITE_FILEMARKS",
- [ SPACE ] = "SPACE",
- [ INQUIRY ] = "INQUIRY",
- [ RECOVER_BUFFERED_DATA ] = "RECOVER_BUFFERED_DATA",
- [ MAINTENANCE_IN ] = "MAINTENANCE_IN",
- [ MAINTENANCE_OUT ] = "MAINTENANCE_OUT",
- [ MODE_SELECT ] = "MODE_SELECT",
- [ RESERVE ] = "RESERVE",
- [ RELEASE ] = "RELEASE",
- [ COPY ] = "COPY",
- [ ERASE ] = "ERASE",
- [ MODE_SENSE ] = "MODE_SENSE",
- [ 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",
- [ READ_CAPACITY_10 ] = "READ_CAPACITY_10",
- [ READ_10 ] = "READ_10",
- [ WRITE_10 ] = "WRITE_10",
- [ 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/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/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_10 ] = "READ_LONG_10",
- [ WRITE_LONG_10 ] = "WRITE_LONG_10",
- [ CHANGE_DEFINITION ] = "CHANGE_DEFINITION",
- [ 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",
- [ RESERVE_10 ] = "RESERVE_10",
- [ RELEASE_10 ] = "RELEASE_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/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",
- [ SET_READ_AHEAD ] = "SET_READ_AHEAD",
- [ ALLOW_OVERWRITE ] = "ALLOW_OVERWRITE",
- [ MECHANISM_STATUS ] = "MECHANISM_STATUS",
- [ GET_EVENT_STATUS_NOTIFICATION ] = "GET_EVENT_STATUS_NOTIFICATION",
- [ READ_DISC_INFORMATION ] = "READ_DISC_INFORMATION",
- };
-
- if (cmd >= ARRAY_SIZE(names) || names[cmd] == NULL)
- return "*UNKNOWN*";
- 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) {
- BusState *qbus = req->dev->qdev.parent_bus;
- SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, qbus);
-
- 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);
- }
- object_unref(OBJECT(req->dev));
- object_unref(OBJECT(qbus->parent));
- 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)
-{
- if (req->io_canceled) {
- trace_scsi_req_continue_canceled(req->dev->id, req->lun, req->tag);
- return;
- }
- 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;
- int i;
-
- fprintf(fp, "[%s id=%d] %s",
- req->dev->qdev.parent_bus->name,
- req->dev->id,
- scsi_command_name(req->cmd.buf[0]));
- for (i = 1; i < req->cmd.len; i++) {
- fprintf(fp, " 0x%02x", req->cmd.buf[i]);
- }
- switch (req->cmd.mode) {
- case SCSI_XFER_NONE:
- fprintf(fp, " - none\n");
- break;
- case SCSI_XFER_FROM_DEV:
- fprintf(fp, " - from-dev len=%zd\n", req->cmd.xfer);
- break;
- case SCSI_XFER_TO_DEV:
- fprintf(fp, " - to-dev len=%zd\n", req->cmd.xfer);
- break;
- default:
- fprintf(fp, " - Oops\n");
- break;
- }
-}
-
-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);
-
- /* Cancelled requests might end up being completed instead of cancelled */
- notifier_list_notify(&req->cancel_notifiers, req);
- scsi_req_unref(req);
-}
-
-/* Called by the devices when the request is canceled. */
-void scsi_req_cancel_complete(SCSIRequest *req)
-{
- assert(req->io_canceled);
- if (req->bus->info->cancel) {
- req->bus->info->cancel(req);
- }
- notifier_list_notify(&req->cancel_notifiers, req);
- scsi_req_unref(req);
-}
-
-/* Cancel @req asynchronously. @notifier is added to @req's cancellation
- * notifier list, the bus will be notified the requests cancellation is
- * completed.
- * */
-void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier)
-{
- trace_scsi_req_cancel(req->dev->id, req->lun, req->tag);
- if (notifier) {
- notifier_list_add(&req->cancel_notifiers, notifier);
- }
- if (req->io_canceled) {
- /* A blk_aio_cancel_async is pending; when it finishes,
- * scsi_req_cancel_complete will be called and will
- * call the notifier we just added. Just wait for that.
- */
- assert(req->aiocb);
- return;
- }
- /* Dropped in scsi_req_cancel_complete. */
- scsi_req_ref(req);
- scsi_req_dequeue(req);
- req->io_canceled = true;
- if (req->aiocb) {
- blk_aio_cancel_async(req->aiocb);
- } else {
- scsi_req_cancel_complete(req);
- }
-}
-
-void scsi_req_cancel(SCSIRequest *req)
-{
- trace_scsi_req_cancel(req->dev->id, req->lun, req->tag);
- if (!req->enqueued) {
- return;
- }
- assert(!req->io_canceled);
- /* Dropped in scsi_req_cancel_complete. */
- scsi_req_ref(req);
- scsi_req_dequeue(req);
- req->io_canceled = true;
- if (req->aiocb) {
- blk_aio_cancel(req->aiocb);
- } else {
- scsi_req_cancel_complete(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;
-
- aio_context_acquire(blk_get_aio_context(sdev->conf.blk));
- while (!QTAILQ_EMPTY(&sdev->requests)) {
- req = QTAILQ_FIRST(&sdev->requests);
- scsi_req_cancel_async(req, NULL);
- }
- blk_drain(sdev->conf.blk);
- aio_context_release(blk_get_aio_context(sdev->conf.blk));
- scsi_device_set_ua(sdev, sense);
-}
-
-static char *scsibus_get_dev_path(DeviceState *dev)
-{
- SCSIDevice *d = SCSI_DEVICE(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 = SCSI_DEVICE(dev);
- return g_strdup_printf("channel@%x/%s@%x,%x", d->channel,
- qdev_fw_name(dev), d->id, d->lun);
-}
-
-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;
-}
-
-/* SCSI request list. For simplicity, pv points to the whole device */
-
-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;
-
- 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 const VMStateInfo vmstate_info_scsi_requests = {
- .name = "scsi-requests",
- .get = get_scsi_requests,
- .put = put_scsi_requests,
-};
-
-static bool scsi_sense_state_needed(void *opaque)
-{
- SCSIDevice *s = opaque;
-
- return s->sense_len > SCSI_SENSE_BUF_SIZE_OLD;
-}
-
-static const VMStateDescription vmstate_scsi_sense_state = {
- .name = "SCSIDevice/sense",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = scsi_sense_state_needed,
- .fields = (VMStateField[]) {
- VMSTATE_UINT8_SUB_ARRAY(sense, SCSIDevice,
- SCSI_SENSE_BUF_SIZE_OLD,
- SCSI_SENSE_BUF_SIZE - SCSI_SENSE_BUF_SIZE_OLD),
- VMSTATE_END_OF_LIST()
- }
-};
-
-const VMStateDescription vmstate_scsi_device = {
- .name = "SCSIDevice",
- .version_id = 1,
- .minimum_version_id = 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_SUB_ARRAY(sense, SCSIDevice, 0, SCSI_SENSE_BUF_SIZE_OLD),
- 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()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_scsi_sense_state,
- NULL
- }
-};
-
-static void scsi_device_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *k = DEVICE_CLASS(klass);
- set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
- k->bus_type = TYPE_SCSI_BUS;
- k->realize = scsi_qdev_realize;
- k->unrealize = scsi_qdev_unrealize;
- k->props = scsi_props;
-}
-
-static void scsi_dev_instance_init(Object *obj)
-{
- DeviceState *dev = DEVICE(obj);
- SCSIDevice *s = SCSI_DEVICE(dev);
-
- device_add_bootindex_property(obj, &s->conf.bootindex,
- "bootindex", NULL,
- &s->qdev, NULL);
-}
-
-static const 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,
- .instance_init = scsi_dev_instance_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)