#include "qemu/units.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
+#include "qemu/module.h"
#include "hw/scsi/scsi.h"
+#include "migration/qemu-file-types.h"
+#include "migration/vmstate.h"
#include "hw/scsi/emulation.h"
#include "scsi/constants.h"
#include "sysemu/sysemu.h"
DMAIOFunc *dma_readv;
DMAIOFunc *dma_writev;
bool (*need_fua_emulation)(SCSICommand *cmd);
+ void (*update_sense)(SCSIRequest *r);
} SCSIDiskClass;
typedef struct SCSIDiskReq {
aio_context_release(blk_get_aio_context(s->qdev.conf.blk));
}
-static void scsi_read_complete(void * opaque, int ret)
+static void scsi_read_complete_noio(SCSIDiskReq *r, int ret)
{
- SCSIDiskReq *r = (SCSIDiskReq *)opaque;
- SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
- int n;
+ uint32_t n;
- assert(r->req.aiocb != NULL);
- r->req.aiocb = NULL;
- aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk));
- if (scsi_disk_req_check_error(r, ret, true)) {
+ assert(r->req.aiocb == NULL);
+ if (scsi_disk_req_check_error(r, ret, false)) {
goto done;
}
- block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct);
- trace_scsi_disk_read_complete(r->req.tag, r->qiov.size);
-
n = r->qiov.size / 512;
r->sector += n;
r->sector_count -= n;
done:
scsi_req_unref(&r->req);
+}
+
+static void scsi_read_complete(void *opaque, int ret)
+{
+ SCSIDiskReq *r = (SCSIDiskReq *)opaque;
+ SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
+
+ assert(r->req.aiocb != NULL);
+ r->req.aiocb = NULL;
+
+ aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk));
+ if (ret < 0) {
+ block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct);
+ } else {
+ block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct);
+ trace_scsi_disk_read_complete(r->req.tag, r->qiov.size);
+ }
+ scsi_read_complete_noio(r, ret);
aio_context_release(blk_get_aio_context(s->qdev.conf.blk));
}
scsi_req_ref(&r->req);
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
trace_scsi_disk_read_data_invalid();
- scsi_read_complete(r, -EINVAL);
+ scsi_read_complete_noio(r, -EINVAL);
return;
}
if (!blk_is_available(req->dev->conf.blk)) {
- scsi_read_complete(r, -ENOMEDIUM);
+ scsi_read_complete_noio(r, -ENOMEDIUM);
return;
}
{
bool is_read = (r->req.cmd.mode == SCSI_XFER_FROM_DEV);
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
+ SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s));
BlockErrorAction action = blk_get_error_action(s->qdev.conf.blk,
is_read, error);
* pause the host.
*/
assert(r->status && *r->status);
- error = scsi_sense_buf_to_errno(r->req.sense, sizeof(r->req.sense));
- if (error == ECANCELED || error == EAGAIN || error == ENOTCONN ||
- error == 0) {
+ if (scsi_sense_buf_is_guest_recoverable(r->req.sense, sizeof(r->req.sense))) {
/* These errors are handled by guest. */
+ sdc->update_sense(&r->req);
scsi_req_complete(&r->req, *r->status);
return true;
}
+ error = scsi_sense_buf_to_errno(r->req.sense, sizeof(r->req.sense));
break;
case ENOMEDIUM:
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
static void scsi_realize(SCSIDevice *dev, Error **errp)
{
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
+ bool read_only;
if (!s->qdev.conf.blk) {
error_setg(errp, "drive property not set");
return;
}
+ if (blk_get_aio_context(s->qdev.conf.blk) != qemu_get_aio_context() &&
+ !s->qdev.hba_supports_iothread)
+ {
+ error_setg(errp, "HBA does not support iothreads");
+ return;
+ }
+
if (dev->type == TYPE_DISK) {
if (!blkconf_geometry(&dev->conf, NULL, 65535, 255, 255, errp)) {
return;
}
}
- if (!blkconf_apply_backend_options(&dev->conf,
- blk_is_read_only(s->qdev.conf.blk),
+
+ read_only = blk_is_read_only(s->qdev.conf.blk);
+ if (dev->type == TYPE_ROM) {
+ read_only = true;
+ }
+
+ if (!blkconf_apply_backend_options(&dev->conf, read_only,
dev->type == TYPE_DISK, errp)) {
return;
}
if (!dev->conf.blk) {
/* Anonymous BlockBackend for an empty drive. As we put it into
* dev->conf, qdev takes care of detaching on unplug. */
- dev->conf.blk = blk_new(0, BLK_PERM_ALL);
+ dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
assert(ret == 0);
}
}
}
+static void scsi_block_update_sense(SCSIRequest *req)
+{
+ SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req);
+ SCSIBlockReq *br = DO_UPCAST(SCSIBlockReq, req, r);
+ r->req.sense_len = MIN(br->io_header.sb_len_wr, sizeof(r->req.sense));
+}
#endif
static
.abstract = true,
};
-#define DEFINE_SCSI_DISK_PROPERTIES() \
- DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \
- DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \
- DEFINE_PROP_STRING("ver", SCSIDiskState, version), \
- DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \
- DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \
- DEFINE_PROP_STRING("product", SCSIDiskState, product), \
+#define DEFINE_SCSI_DISK_PROPERTIES() \
+ DEFINE_PROP_DRIVE_IOTHREAD("drive", SCSIDiskState, qdev.conf.blk), \
+ DEFINE_BLOCK_PROPERTIES_BASE(SCSIDiskState, qdev.conf), \
+ DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \
+ DEFINE_PROP_STRING("ver", SCSIDiskState, version), \
+ DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \
+ DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \
+ DEFINE_PROP_STRING("product", SCSIDiskState, product), \
DEFINE_PROP_STRING("device_id", SCSIDiskState, device_id)
sc->parse_cdb = scsi_block_parse_cdb;
sdc->dma_readv = scsi_block_dma_readv;
sdc->dma_writev = scsi_block_dma_writev;
+ sdc->update_sense = scsi_block_update_sense;
sdc->need_fua_emulation = scsi_block_no_fua;
dc->desc = "SCSI block device passthrough";
dc->props = scsi_block_properties;
projects / qemu.git / blobdiff