static RAMBlock *last_block;
static ram_addr_t last_offset;
+/*
+ * ram_save_block: Writes a page of memory to the stream f
+ *
+ * Returns: 0: if the page hasn't changed
+ * -1: if there are no more dirty pages
+ * n: the amount of bytes written in other case
+ */
+
static int ram_save_block(QEMUFile *f)
{
RAMBlock *block = last_block;
ram_addr_t offset = last_offset;
- int bytes_sent = 0;
+ int bytes_sent = -1;
MemoryRegion *mr;
if (!block)
memory_global_dirty_log_stop();
}
+static void ram_migration_cancel(void *opaque)
+{
+ migration_end();
+}
+
#define MAX_WAIT 50 /* ms, half buffered_file limit */
-int ram_save_live(QEMUFile *f, int stage, void *opaque)
+static int ram_save_setup(QEMUFile *f, void *opaque)
{
ram_addr_t addr;
- uint64_t bytes_transferred_last;
- double bwidth = 0;
- int ret;
- int i;
-
- if (stage < 0) {
- migration_end();
- return 0;
- }
+ RAMBlock *block;
- memory_global_sync_dirty_bitmap(get_system_memory());
+ bytes_transferred = 0;
+ last_block = NULL;
+ last_offset = 0;
+ sort_ram_list();
- if (stage == 1) {
- RAMBlock *block;
- bytes_transferred = 0;
- last_block = NULL;
- last_offset = 0;
- sort_ram_list();
-
- /* Make sure all dirty bits are set */
- QLIST_FOREACH(block, &ram_list.blocks, next) {
- for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
- if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
- DIRTY_MEMORY_MIGRATION)) {
- memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
- }
+ /* Make sure all dirty bits are set */
+ QLIST_FOREACH(block, &ram_list.blocks, next) {
+ for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
+ if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
+ DIRTY_MEMORY_MIGRATION)) {
+ memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
}
}
+ }
- memory_global_dirty_log_start();
+ memory_global_dirty_log_start();
- qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
+ qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
- QLIST_FOREACH(block, &ram_list.blocks, next) {
- qemu_put_byte(f, strlen(block->idstr));
- qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
- qemu_put_be64(f, block->length);
- }
+ QLIST_FOREACH(block, &ram_list.blocks, next) {
+ qemu_put_byte(f, strlen(block->idstr));
+ qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
+ qemu_put_be64(f, block->length);
}
+ qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
+
+ return 0;
+}
+
+static int ram_save_iterate(QEMUFile *f, void *opaque)
+{
+ uint64_t bytes_transferred_last;
+ double bwidth = 0;
+ int ret;
+ int i;
+ uint64_t expected_time;
+
bytes_transferred_last = bytes_transferred;
bwidth = qemu_get_clock_ns(rt_clock);
int bytes_sent;
bytes_sent = ram_save_block(f);
- bytes_transferred += bytes_sent;
- if (bytes_sent == 0) { /* no more blocks */
+ /* no more blocks to sent */
+ if (bytes_sent < 0) {
break;
}
+ bytes_transferred += bytes_sent;
/* we want to check in the 1st loop, just in case it was the 1st time
and we had to sync the dirty bitmap.
qemu_get_clock_ns() is a bit expensive, so we only check each some
bwidth = 0.000001;
}
+ qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
+
+ expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
+
+ DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
+ expected_time, migrate_max_downtime());
+
+ if (expected_time <= migrate_max_downtime()) {
+ memory_global_sync_dirty_bitmap(get_system_memory());
+ expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
+
+ return expected_time <= migrate_max_downtime();
+ }
+ return 0;
+}
+
+static int ram_save_complete(QEMUFile *f, void *opaque)
+{
+ memory_global_sync_dirty_bitmap(get_system_memory());
+
/* try transferring iterative blocks of memory */
- if (stage == 3) {
+
+ /* flush all remaining blocks regardless of rate limiting */
+ while (true) {
int bytes_sent;
- /* flush all remaining blocks regardless of rate limiting */
- while ((bytes_sent = ram_save_block(f)) != 0) {
- bytes_transferred += bytes_sent;
+ bytes_sent = ram_save_block(f);
+ /* no more blocks to sent */
+ if (bytes_sent < 0) {
+ break;
}
- memory_global_dirty_log_stop();
+ bytes_transferred += bytes_sent;
}
+ memory_global_dirty_log_stop();
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
- if (stage == 2) {
- uint64_t expected_time;
- expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
-
- DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
- expected_time, migrate_max_downtime());
-
- return expected_time <= migrate_max_downtime();
- }
return 0;
}
return NULL;
}
-int ram_load(QEMUFile *f, void *opaque, int version_id)
+static int ram_load(QEMUFile *f, void *opaque, int version_id)
{
ram_addr_t addr;
int flags, ret = 0;
return ret;
}
+SaveVMHandlers savevm_ram_handlers = {
+ .save_live_setup = ram_save_setup,
+ .save_live_iterate = ram_save_iterate,
+ .save_live_complete = ram_save_complete,
+ .load_state = ram_load,
+ .cancel = ram_migration_cancel,
+};
+
#ifdef HAS_AUDIO
struct soundhw {
const char *name;
}
}
-static int block_save_live(QEMUFile *f, int stage, void *opaque)
+static void block_migration_cancel(void *opaque)
+{
+ blk_mig_cleanup();
+}
+
+static int block_save_setup(QEMUFile *f, void *opaque)
{
int ret;
- DPRINTF("Enter save live stage %d submitted %d transferred %d\n",
- stage, block_mig_state.submitted, block_mig_state.transferred);
+ DPRINTF("Enter save live setup submitted %d transferred %d\n",
+ block_mig_state.submitted, block_mig_state.transferred);
+
+ init_blk_migration(f);
+
+ /* start track dirty blocks */
+ set_dirty_tracking(1);
- if (stage < 0) {
+ flush_blks(f);
+
+ ret = qemu_file_get_error(f);
+ if (ret) {
blk_mig_cleanup();
- return 0;
+ return ret;
}
- if (block_mig_state.blk_enable != 1) {
- /* no need to migrate storage */
- qemu_put_be64(f, BLK_MIG_FLAG_EOS);
- return 1;
- }
+ blk_mig_reset_dirty_cursor();
- if (stage == 1) {
- init_blk_migration(f);
+ qemu_put_be64(f, BLK_MIG_FLAG_EOS);
- /* start track dirty blocks */
- set_dirty_tracking(1);
- }
+ return 0;
+}
+
+static int block_save_iterate(QEMUFile *f, void *opaque)
+{
+ int ret;
+
+ DPRINTF("Enter save live iterate submitted %d transferred %d\n",
+ block_mig_state.submitted, block_mig_state.transferred);
flush_blks(f);
blk_mig_reset_dirty_cursor();
- if (stage == 2) {
- /* control the rate of transfer */
- while ((block_mig_state.submitted +
- block_mig_state.read_done) * BLOCK_SIZE <
- qemu_file_get_rate_limit(f)) {
- if (block_mig_state.bulk_completed == 0) {
- /* first finish the bulk phase */
- if (blk_mig_save_bulked_block(f) == 0) {
- /* finished saving bulk on all devices */
- block_mig_state.bulk_completed = 1;
- }
- } else {
- if (blk_mig_save_dirty_block(f, 1) == 0) {
- /* no more dirty blocks */
- break;
- }
+ /* control the rate of transfer */
+ while ((block_mig_state.submitted +
+ block_mig_state.read_done) * BLOCK_SIZE <
+ qemu_file_get_rate_limit(f)) {
+ if (block_mig_state.bulk_completed == 0) {
+ /* first finish the bulk phase */
+ if (blk_mig_save_bulked_block(f) == 0) {
+ /* finished saving bulk on all devices */
+ block_mig_state.bulk_completed = 1;
+ }
+ } else {
+ if (blk_mig_save_dirty_block(f, 1) == 0) {
+ /* no more dirty blocks */
+ break;
}
}
+ }
- flush_blks(f);
+ flush_blks(f);
- ret = qemu_file_get_error(f);
- if (ret) {
- blk_mig_cleanup();
- return ret;
- }
+ ret = qemu_file_get_error(f);
+ if (ret) {
+ blk_mig_cleanup();
+ return ret;
}
- if (stage == 3) {
- /* we know for sure that save bulk is completed and
- all async read completed */
- assert(block_mig_state.submitted == 0);
+ qemu_put_be64(f, BLK_MIG_FLAG_EOS);
+
+ return is_stage2_completed();
+}
+
+static int block_save_complete(QEMUFile *f, void *opaque)
+{
+ int ret;
+
+ DPRINTF("Enter save live complete submitted %d transferred %d\n",
+ block_mig_state.submitted, block_mig_state.transferred);
+
+ flush_blks(f);
- while (blk_mig_save_dirty_block(f, 0) != 0);
+ ret = qemu_file_get_error(f);
+ if (ret) {
blk_mig_cleanup();
+ return ret;
+ }
- /* report completion */
- qemu_put_be64(f, (100 << BDRV_SECTOR_BITS) | BLK_MIG_FLAG_PROGRESS);
+ blk_mig_reset_dirty_cursor();
- ret = qemu_file_get_error(f);
- if (ret) {
- return ret;
- }
+ /* we know for sure that save bulk is completed and
+ all async read completed */
+ assert(block_mig_state.submitted == 0);
- DPRINTF("Block migration completed\n");
+ while (blk_mig_save_dirty_block(f, 0) != 0) {
+ /* Do nothing */
+ }
+ blk_mig_cleanup();
+
+ /* report completion */
+ qemu_put_be64(f, (100 << BDRV_SECTOR_BITS) | BLK_MIG_FLAG_PROGRESS);
+
+ ret = qemu_file_get_error(f);
+ if (ret) {
+ return ret;
}
+ DPRINTF("Block migration completed\n");
+
qemu_put_be64(f, BLK_MIG_FLAG_EOS);
- return ((stage == 2) && is_stage2_completed());
+ return 0;
}
static int block_load(QEMUFile *f, void *opaque, int version_id)
block_mig_state.blk_enable |= params->shared;
}
+static bool block_is_active(void *opaque)
+{
+ return block_mig_state.blk_enable == 1;
+}
+
+SaveVMHandlers savevm_block_handlers = {
+ .set_params = block_set_params,
+ .save_live_setup = block_save_setup,
+ .save_live_iterate = block_save_iterate,
+ .save_live_complete = block_save_complete,
+ .load_state = block_load,
+ .cancel = block_migration_cancel,
+ .is_active = block_is_active,
+};
+
void blk_mig_init(void)
{
QSIMPLEQ_INIT(&block_mig_state.bmds_list);
QSIMPLEQ_INIT(&block_mig_state.blk_list);
- register_savevm_live(NULL, "block", 0, 1, block_set_params,
- block_save_live, NULL, block_load, &block_mig_state);
+ register_savevm_live(NULL, "block", 0, 1, &savevm_block_handlers,
+ &block_mig_state);
}
#include "qemu_socket.h"
#include "iov.h"
+void strpadcpy(char *buf, int buf_size, const char *str, char pad)
+{
+ int len = qemu_strnlen(str, buf_size);
+ memcpy(buf, str, len);
+ memset(buf + len, pad, buf_size - len);
+}
+
void pstrcpy(char *buf, int buf_size, const char *str)
{
int c;
static void lsi_soft_reset(LSIState *s)
{
- lsi_request *p;
-
DPRINTF("Reset\n");
s->carry = 0;
s->sbc = 0;
s->csbc = 0;
s->sbr = 0;
- while (!QTAILQ_EMPTY(&s->queue)) {
- p = QTAILQ_FIRST(&s->queue);
- QTAILQ_REMOVE(&s->queue, p, next);
- g_free(p);
- }
- if (s->current) {
- g_free(s->current);
- s->current = NULL;
- }
+ assert(QTAILQ_EMPTY(&s->queue));
+ assert(!s->current);
}
static int lsi_dma_40bit(LSIState *s)
return NULL;
}
+static void lsi_request_free(LSIState *s, lsi_request *p)
+{
+ if (p == s->current) {
+ s->current = NULL;
+ } else {
+ QTAILQ_REMOVE(&s->queue, p, next);
+ }
+ g_free(p);
+}
+
static void lsi_request_cancelled(SCSIRequest *req)
{
LSIState *s = DO_UPCAST(LSIState, dev.qdev, req->bus->qbus.parent);
lsi_request *p = req->hba_private;
- if (s->current && req == s->current->req) {
- scsi_req_unref(req);
- g_free(s->current);
- s->current = NULL;
- return;
- }
-
- if (p) {
- QTAILQ_REMOVE(&s->queue, p, next);
- scsi_req_unref(req);
- g_free(p);
- }
+ req->hba_private = NULL;
+ lsi_request_free(s, p);
+ scsi_req_unref(req);
}
/* Record that data is available for a queued command. Returns zero if
lsi_set_phase(s, PHASE_ST);
}
- if (s->current && req == s->current->req) {
- scsi_req_unref(s->current->req);
- g_free(s->current);
- s->current = NULL;
+ if (req->hba_private == s->current) {
+ req->hba_private = NULL;
+ lsi_request_free(s, s->current);
+ scsi_req_unref(req);
}
lsi_resume_script(s);
}
LSIState *s = DO_UPCAST(LSIState, dev.qdev, req->bus->qbus.parent);
int out;
- if (s->waiting == 1 || !s->current || req->hba_private != s->current ||
+ assert(req->hba_private);
+ if (s->waiting == 1 || req->hba_private != s->current ||
(lsi_irq_on_rsl(s) && !(s->scntl1 & LSI_SCNTL1_CON))) {
if (lsi_queue_req(s, req, len)) {
return;
lsi_execute_script(s);
}
if (val & LSI_ISTAT0_SRST) {
- lsi_soft_reset(s);
+ qdev_reset_all(&s->dev.qdev);
}
break;
case 0x16: /* MBOX0 */
static void megasas_abort_command(MegasasCmd *cmd)
{
if (cmd->req) {
- scsi_req_abort(cmd->req, ABORTED_COMMAND);
+ scsi_req_cancel(cmd->req);
cmd->req = NULL;
}
}
static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
{
- uint8_t *dummy = g_malloc(cmd->iov_size);
-
- dma_buf_write(dummy, cmd->iov_size, &cmd->qsg);
-
- trace_megasas_dcmd_dump_frame(0,
- dummy[0x00], dummy[0x01], dummy[0x02], dummy[0x03],
- dummy[0x04], dummy[0x05], dummy[0x06], dummy[0x07]);
- trace_megasas_dcmd_dump_frame(1,
- dummy[0x08], dummy[0x09], dummy[0x0a], dummy[0x0b],
- dummy[0x0c], dummy[0x0d], dummy[0x0e], dummy[0x0f]);
- trace_megasas_dcmd_dump_frame(2,
- dummy[0x10], dummy[0x11], dummy[0x12], dummy[0x13],
- dummy[0x14], dummy[0x15], dummy[0x16], dummy[0x17]);
- trace_megasas_dcmd_dump_frame(3,
- dummy[0x18], dummy[0x19], dummy[0x1a], dummy[0x1b],
- dummy[0x1c], dummy[0x1d], dummy[0x1e], dummy[0x1f]);
- trace_megasas_dcmd_dump_frame(4,
- dummy[0x20], dummy[0x21], dummy[0x22], dummy[0x23],
- dummy[0x24], dummy[0x25], dummy[0x26], dummy[0x27]);
- trace_megasas_dcmd_dump_frame(5,
- dummy[0x28], dummy[0x29], dummy[0x2a], dummy[0x2b],
- dummy[0x2c], dummy[0x2d], dummy[0x2e], dummy[0x2f]);
- trace_megasas_dcmd_dump_frame(6,
- dummy[0x30], dummy[0x31], dummy[0x32], dummy[0x33],
- dummy[0x34], dummy[0x35], dummy[0x36], dummy[0x37]);
- trace_megasas_dcmd_dump_frame(7,
- dummy[0x38], dummy[0x39], dummy[0x3a], dummy[0x3b],
- dummy[0x3c], dummy[0x3d], dummy[0x3e], dummy[0x3f]);
- g_free(dummy);
+ struct mfi_ctrl_props info;
+ size_t dcmd_size = sizeof(info);
+
+ if (cmd->iov_size < dcmd_size) {
+ trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
+ dcmd_size);
+ return MFI_STAT_INVALID_PARAMETER;
+ }
+ dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
+ trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
return MFI_STAT_OK;
}
dev);
}
+ if (bus->info->hotplug) {
+ bus->info->hotplug(bus, dev);
+ }
+
err:
return rc;
}
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
*/
.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
.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
.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
*
void scsi_req_cancel(SCSIRequest *req)
{
+ trace_scsi_req_cancel(req->dev->id, req->lun, req->tag);
if (!req->enqueued) {
return;
}
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;
req = QTAILQ_FIRST(&sdev->requests);
scsi_req_cancel(req);
}
- sdev->unit_attention = sense;
+
+ scsi_device_set_ua(sdev, sense);
}
static char *scsibus_get_dev_path(DeviceState *dev)
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,
DeviceClass *k = DEVICE_CLASS(klass);
k->bus_type = TYPE_SCSI_BUS;
k->init = scsi_qdev_init;
- k->unplug = qdev_simple_unplug_cb;
+ k->unplug = scsi_qdev_unplug;
k->exit = scsi_qdev_exit;
k->props = scsi_props;
}
#define SCSI_DMA_BUF_SIZE 131072
#define SCSI_MAX_INQUIRY_LEN 256
+#define SCSI_MAX_MODE_LEN 256
typedef struct SCSIDiskState SCSIDiskState;
QEMUBH *bh;
char *version;
char *serial;
+ char *vendor;
+ char *product;
bool tray_open;
bool tray_locked;
};
qemu_iovec_init_external(&r->qiov, &r->iov, 1);
}
-static void scsi_flush_complete(void * opaque, int ret)
+static void scsi_aio_complete(void *opaque, int ret)
{
SCSIDiskReq *r = (SCSIDiskReq *)opaque;
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
if (scsi_is_cmd_fua(&r->req.cmd)) {
bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
- r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_flush_complete, r);
+ r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_aio_complete, r);
return;
}
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
bool first;
- if (r->sector_count == (uint32_t)-1) {
- DPRINTF("Read buf_len=%zd\n", r->iov.iov_len);
- r->sector_count = 0;
- r->started = true;
- scsi_req_data(&r->req, r->iov.iov_len);
- return;
- }
DPRINTF("Read sector_count=%d\n", r->sector_count);
if (r->sector_count == 0) {
/* This also clears the sense buffer for REQUEST SENSE. */
outbuf[0] = s->qdev.type & 0x1f;
outbuf[1] = (s->features & (1 << SCSI_DISK_F_REMOVABLE)) ? 0x80 : 0;
- if (s->qdev.type == TYPE_ROM) {
- memcpy(&outbuf[16], "QEMU CD-ROM ", 16);
- } else {
- memcpy(&outbuf[16], "QEMU HARDDISK ", 16);
- }
- memcpy(&outbuf[8], "QEMU ", 8);
+
+ strpadcpy((char *) &outbuf[16], 16, s->product, ' ');
+ strpadcpy((char *) &outbuf[8], 8, s->vendor, ' ');
+
memset(&outbuf[32], 0, 4);
memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version)));
/*
[MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM),
[MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM),
};
- uint8_t *p = *p_outbuf;
+
+ uint8_t *p = *p_outbuf + 2;
+ int length;
if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) {
return -1;
}
- p[0] = page;
-
/*
* If Changeable Values are requested, a mask denoting those mode parameters
* that are changeable shall be returned. As we currently don't support
* parameter changes via MODE_SELECT all bits are returned set to zero.
* The buffer was already menset to zero by the caller of this function.
+ *
+ * The offsets here are off by two compared to the descriptions in the
+ * SCSI specs, because those include a 2-byte header. This is unfortunate,
+ * but it is done so that offsets are consistent within our implementation
+ * of MODE SENSE and MODE SELECT. MODE SELECT has to deal with both
+ * 2-byte and 4-byte headers.
*/
switch (page) {
case MODE_PAGE_HD_GEOMETRY:
- p[1] = 0x16;
+ length = 0x16;
if (page_control == 1) { /* Changeable Values */
break;
}
/* if a geometry hint is available, use it */
- p[2] = (s->qdev.conf.cyls >> 16) & 0xff;
- p[3] = (s->qdev.conf.cyls >> 8) & 0xff;
- p[4] = s->qdev.conf.cyls & 0xff;
- p[5] = s->qdev.conf.heads & 0xff;
+ p[0] = (s->qdev.conf.cyls >> 16) & 0xff;
+ p[1] = (s->qdev.conf.cyls >> 8) & 0xff;
+ p[2] = s->qdev.conf.cyls & 0xff;
+ p[3] = s->qdev.conf.heads & 0xff;
/* Write precomp start cylinder, disabled */
- p[6] = (s->qdev.conf.cyls >> 16) & 0xff;
- p[7] = (s->qdev.conf.cyls >> 8) & 0xff;
- p[8] = s->qdev.conf.cyls & 0xff;
+ p[4] = (s->qdev.conf.cyls >> 16) & 0xff;
+ p[5] = (s->qdev.conf.cyls >> 8) & 0xff;
+ p[6] = s->qdev.conf.cyls & 0xff;
/* Reduced current start cylinder, disabled */
- p[9] = (s->qdev.conf.cyls >> 16) & 0xff;
- p[10] = (s->qdev.conf.cyls >> 8) & 0xff;
- p[11] = s->qdev.conf.cyls & 0xff;
+ p[7] = (s->qdev.conf.cyls >> 16) & 0xff;
+ p[8] = (s->qdev.conf.cyls >> 8) & 0xff;
+ p[9] = s->qdev.conf.cyls & 0xff;
/* Device step rate [ns], 200ns */
- p[12] = 0;
- p[13] = 200;
+ p[10] = 0;
+ p[11] = 200;
/* Landing zone cylinder */
+ p[12] = 0xff;
+ p[13] = 0xff;
p[14] = 0xff;
- p[15] = 0xff;
- p[16] = 0xff;
/* Medium rotation rate [rpm], 5400 rpm */
- p[20] = (5400 >> 8) & 0xff;
- p[21] = 5400 & 0xff;
+ p[18] = (5400 >> 8) & 0xff;
+ p[19] = 5400 & 0xff;
break;
case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY:
- p[1] = 0x1e;
+ length = 0x1e;
if (page_control == 1) { /* Changeable Values */
break;
}
/* Transfer rate [kbit/s], 5Mbit/s */
- p[2] = 5000 >> 8;
- p[3] = 5000 & 0xff;
+ p[0] = 5000 >> 8;
+ p[1] = 5000 & 0xff;
/* if a geometry hint is available, use it */
- p[4] = s->qdev.conf.heads & 0xff;
- p[5] = s->qdev.conf.secs & 0xff;
- p[6] = s->qdev.blocksize >> 8;
+ p[2] = s->qdev.conf.heads & 0xff;
+ p[3] = s->qdev.conf.secs & 0xff;
+ p[4] = s->qdev.blocksize >> 8;
+ p[6] = (s->qdev.conf.cyls >> 8) & 0xff;
+ p[7] = s->qdev.conf.cyls & 0xff;
+ /* Write precomp start cylinder, disabled */
p[8] = (s->qdev.conf.cyls >> 8) & 0xff;
p[9] = s->qdev.conf.cyls & 0xff;
- /* Write precomp start cylinder, disabled */
+ /* Reduced current start cylinder, disabled */
p[10] = (s->qdev.conf.cyls >> 8) & 0xff;
p[11] = s->qdev.conf.cyls & 0xff;
- /* Reduced current start cylinder, disabled */
- p[12] = (s->qdev.conf.cyls >> 8) & 0xff;
- p[13] = s->qdev.conf.cyls & 0xff;
/* Device step rate [100us], 100us */
- p[14] = 0;
- p[15] = 1;
+ p[12] = 0;
+ p[13] = 1;
/* Device step pulse width [us], 1us */
- p[16] = 1;
+ p[14] = 1;
/* Device head settle delay [100us], 100us */
- p[17] = 0;
- p[18] = 1;
+ p[15] = 0;
+ p[16] = 1;
/* Motor on delay [0.1s], 0.1s */
- p[19] = 1;
+ p[17] = 1;
/* Motor off delay [0.1s], 0.1s */
- p[20] = 1;
+ p[18] = 1;
/* Medium rotation rate [rpm], 5400 rpm */
- p[28] = (5400 >> 8) & 0xff;
- p[29] = 5400 & 0xff;
+ p[26] = (5400 >> 8) & 0xff;
+ p[27] = 5400 & 0xff;
break;
case MODE_PAGE_CACHING:
- p[0] = 8;
- p[1] = 0x12;
- if (page_control == 1) { /* Changeable Values */
- break;
- }
- if (bdrv_enable_write_cache(s->qdev.conf.bs)) {
- p[2] = 4; /* WCE */
+ length = 0x12;
+ if (page_control == 1 || /* Changeable Values */
+ bdrv_enable_write_cache(s->qdev.conf.bs)) {
+ p[0] = 4; /* WCE */
}
break;
case MODE_PAGE_R_W_ERROR:
- p[1] = 10;
- p[2] = 0x80; /* Automatic Write Reallocation Enabled */
+ length = 10;
+ if (page_control == 1) { /* Changeable Values */
+ break;
+ }
+ p[0] = 0x80; /* Automatic Write Reallocation Enabled */
if (s->qdev.type == TYPE_ROM) {
- p[3] = 0x20; /* Read Retry Count */
+ p[1] = 0x20; /* Read Retry Count */
}
break;
case MODE_PAGE_AUDIO_CTL:
- p[1] = 14;
+ length = 14;
break;
case MODE_PAGE_CAPABILITIES:
- p[1] = 0x14;
+ length = 0x14;
if (page_control == 1) { /* Changeable Values */
break;
}
- p[2] = 0x3b; /* CD-R & CD-RW read */
- p[3] = 0; /* Writing not supported */
- p[4] = 0x7f; /* Audio, composite, digital out,
+ p[0] = 0x3b; /* CD-R & CD-RW read */
+ p[1] = 0; /* Writing not supported */
+ p[2] = 0x7f; /* Audio, composite, digital out,
mode 2 form 1&2, multi session */
- p[5] = 0xff; /* CD DA, DA accurate, RW supported,
+ p[3] = 0xff; /* CD DA, DA accurate, RW supported,
RW corrected, C2 errors, ISRC,
UPC, Bar code */
- p[6] = 0x2d | (s->tray_locked ? 2 : 0);
+ p[4] = 0x2d | (s->tray_locked ? 2 : 0);
/* Locking supported, jumper present, eject, tray */
- p[7] = 0; /* no volume & mute control, no
+ p[5] = 0; /* no volume & mute control, no
changer */
- p[8] = (50 * 176) >> 8; /* 50x read speed */
- p[9] = (50 * 176) & 0xff;
- p[10] = 2 >> 8; /* Two volume levels */
- p[11] = 2 & 0xff;
- p[12] = 2048 >> 8; /* 2M buffer */
- p[13] = 2048 & 0xff;
- p[14] = (16 * 176) >> 8; /* 16x read speed current */
- p[15] = (16 * 176) & 0xff;
- p[18] = (16 * 176) >> 8; /* 16x write speed */
+ p[6] = (50 * 176) >> 8; /* 50x read speed */
+ p[7] = (50 * 176) & 0xff;
+ p[8] = 2 >> 8; /* Two volume levels */
+ p[9] = 2 & 0xff;
+ p[10] = 2048 >> 8; /* 2M buffer */
+ p[11] = 2048 & 0xff;
+ p[12] = (16 * 176) >> 8; /* 16x read speed current */
+ p[13] = (16 * 176) & 0xff;
+ p[16] = (16 * 176) >> 8; /* 16x write speed */
+ p[17] = (16 * 176) & 0xff;
+ p[18] = (16 * 176) >> 8; /* 16x write speed current */
p[19] = (16 * 176) & 0xff;
- p[20] = (16 * 176) >> 8; /* 16x write speed current */
- p[21] = (16 * 176) & 0xff;
break;
default:
return -1;
}
- *p_outbuf += p[1] + 2;
- return p[1] + 2;
+ assert(length < 256);
+ (*p_outbuf)[0] = page;
+ (*p_outbuf)[1] = length;
+ *p_outbuf += length + 2;
+ return length + 2;
}
static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf)
bool start = req->cmd.buf[4] & 1;
bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */
- if (s->qdev.type == TYPE_ROM && loej) {
+ if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && loej) {
if (!start && !s->tray_open && s->tray_locked) {
scsi_check_condition(r,
bdrv_is_inserted(s->qdev.conf.bs)
return 0;
}
-static int scsi_disk_emulate_command(SCSIDiskReq *r)
+static void scsi_disk_emulate_read_data(SCSIRequest *req)
{
- SCSIRequest *req = &r->req;
+ SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req);
+ int buflen = r->iov.iov_len;
+
+ if (buflen) {
+ DPRINTF("Read buf_len=%zd\n", buflen);
+ r->iov.iov_len = 0;
+ r->started = true;
+ scsi_req_data(&r->req, buflen);
+ return;
+ }
+
+ /* This also clears the sense buffer for REQUEST SENSE. */
+ scsi_req_complete(&r->req, GOOD);
+}
+
+static int scsi_disk_check_mode_select(SCSIDiskState *s, int page,
+ uint8_t *inbuf, int inlen)
+{
+ uint8_t mode_current[SCSI_MAX_MODE_LEN];
+ uint8_t mode_changeable[SCSI_MAX_MODE_LEN];
+ uint8_t *p;
+ int len, expected_len, changeable_len, i;
+
+ /* The input buffer does not include the page header, so it is
+ * off by 2 bytes.
+ */
+ expected_len = inlen + 2;
+ if (expected_len > SCSI_MAX_MODE_LEN) {
+ return -1;
+ }
+
+ p = mode_current;
+ memset(mode_current, 0, inlen + 2);
+ len = mode_sense_page(s, page, &p, 0);
+ if (len < 0 || len != expected_len) {
+ return -1;
+ }
+
+ p = mode_changeable;
+ memset(mode_changeable, 0, inlen + 2);
+ changeable_len = mode_sense_page(s, page, &p, 1);
+ assert(changeable_len == len);
+
+ /* Check that unchangeable bits are the same as what MODE SENSE
+ * would return.
+ */
+ for (i = 2; i < len; i++) {
+ if (((mode_current[i] ^ inbuf[i - 2]) & ~mode_changeable[i]) != 0) {
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static void scsi_disk_apply_mode_select(SCSIDiskState *s, int page, uint8_t *p)
+{
+ switch (page) {
+ case MODE_PAGE_CACHING:
+ bdrv_set_enable_write_cache(s->qdev.conf.bs, (p[0] & 4) != 0);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static int mode_select_pages(SCSIDiskReq *r, uint8_t *p, int len, bool change)
+{
+ SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
+
+ while (len > 0) {
+ int page, subpage, page_len;
+
+ /* Parse both possible formats for the mode page headers. */
+ page = p[0] & 0x3f;
+ if (p[0] & 0x40) {
+ if (len < 4) {
+ goto invalid_param_len;
+ }
+ subpage = p[1];
+ page_len = lduw_be_p(&p[2]);
+ p += 4;
+ len -= 4;
+ } else {
+ if (len < 2) {
+ goto invalid_param_len;
+ }
+ subpage = 0;
+ page_len = p[1];
+ p += 2;
+ len -= 2;
+ }
+
+ if (subpage) {
+ goto invalid_param;
+ }
+ if (page_len > len) {
+ goto invalid_param_len;
+ }
+
+ if (!change) {
+ if (scsi_disk_check_mode_select(s, page, p, page_len) < 0) {
+ goto invalid_param;
+ }
+ } else {
+ scsi_disk_apply_mode_select(s, page, p);
+ }
+
+ p += page_len;
+ len -= page_len;
+ }
+ return 0;
+
+invalid_param:
+ scsi_check_condition(r, SENSE_CODE(INVALID_PARAM));
+ return -1;
+
+invalid_param_len:
+ scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN));
+ return -1;
+}
+
+static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf)
+{
+ uint8_t *p = inbuf;
+ int cmd = r->req.cmd.buf[0];
+ int len = r->req.cmd.xfer;
+ int hdr_len = (cmd == MODE_SELECT ? 4 : 8);
+ int bd_len;
+ int pass;
+
+ /* We only support PF=1, SP=0. */
+ if ((r->req.cmd.buf[1] & 0x11) != 0x10) {
+ goto invalid_field;
+ }
+
+ if (len < hdr_len) {
+ goto invalid_param_len;
+ }
+
+ bd_len = (cmd == MODE_SELECT ? p[3] : lduw_be_p(&p[6]));
+ len -= hdr_len;
+ p += hdr_len;
+ if (len < bd_len) {
+ goto invalid_param_len;
+ }
+ if (bd_len != 0 && bd_len != 8) {
+ goto invalid_param;
+ }
+
+ len -= bd_len;
+ p += bd_len;
+
+ /* Ensure no change is made if there is an error! */
+ for (pass = 0; pass < 2; pass++) {
+ if (mode_select_pages(r, p, len, pass == 1) < 0) {
+ assert(pass == 0);
+ return;
+ }
+ }
+ scsi_req_complete(&r->req, GOOD);
+ return;
+
+invalid_param:
+ scsi_check_condition(r, SENSE_CODE(INVALID_PARAM));
+ return;
+
+invalid_param_len:
+ scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN));
+ return;
+
+invalid_field:
+ scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
+ return;
+}
+
+static void scsi_disk_emulate_write_data(SCSIRequest *req)
+{
+ SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req);
+
+ if (r->iov.iov_len) {
+ int buflen = r->iov.iov_len;
+ DPRINTF("Write buf_len=%zd\n", buflen);
+ r->iov.iov_len = 0;
+ scsi_req_data(&r->req, buflen);
+ return;
+ }
+
+ switch (req->cmd.buf[0]) {
+ case MODE_SELECT:
+ case MODE_SELECT_10:
+ /* This also clears the sense buffer for REQUEST SENSE. */
+ scsi_disk_emulate_mode_select(r, r->iov.iov_base);
+ break;
+
+ default:
+ abort();
+ }
+}
+
+static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
+{
+ SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req);
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev);
uint64_t nb_sectors;
uint8_t *outbuf;
- int buflen = 0;
+ int buflen;
+
+ switch (req->cmd.buf[0]) {
+ case INQUIRY:
+ case MODE_SENSE:
+ case MODE_SENSE_10:
+ case RESERVE:
+ case RESERVE_10:
+ case RELEASE:
+ case RELEASE_10:
+ case START_STOP:
+ case ALLOW_MEDIUM_REMOVAL:
+ case GET_CONFIGURATION:
+ case GET_EVENT_STATUS_NOTIFICATION:
+ case MECHANISM_STATUS:
+ case REQUEST_SENSE:
+ break;
+
+ default:
+ if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
+ scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
+ return 0;
+ }
+ break;
+ }
if (!r->iov.iov_base) {
/*
r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen);
}
+ buflen = req->cmd.xfer;
outbuf = r->iov.iov_base;
switch (req->cmd.buf[0]) {
case TEST_UNIT_READY:
break;
case START_STOP:
if (scsi_disk_emulate_start_stop(r) < 0) {
- return -1;
+ return 0;
}
break;
case ALLOW_MEDIUM_REMOVAL:
}
DPRINTF("Unsupported Service Action In\n");
goto illegal_request;
+ case SYNCHRONIZE_CACHE:
+ /* The request is used as the AIO opaque value, so add a ref. */
+ scsi_req_ref(&r->req);
+ bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
+ r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_aio_complete, r);
+ return 0;
+ case SEEK_10:
+ DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba);
+ if (r->req.cmd.lba > s->qdev.max_lba) {
+ goto illegal_lba;
+ }
+ break;
+ case MODE_SELECT:
+ DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer);
+ break;
+ case MODE_SELECT_10:
+ DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer);
+ break;
+ case WRITE_SAME_10:
+ nb_sectors = lduw_be_p(&req->cmd.buf[7]);
+ goto write_same;
+ case WRITE_SAME_16:
+ nb_sectors = ldl_be_p(&req->cmd.buf[10]) & 0xffffffffULL;
+ write_same:
+ if (bdrv_is_read_only(s->qdev.conf.bs)) {
+ scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED));
+ return 0;
+ }
+ if (r->req.cmd.lba > s->qdev.max_lba) {
+ goto illegal_lba;
+ }
+
+ /*
+ * We only support WRITE SAME with the unmap bit set for now.
+ */
+ if (!(req->cmd.buf[1] & 0x8)) {
+ goto illegal_request;
+ }
+
+ /* The request is used as the AIO opaque value, so add a ref. */
+ scsi_req_ref(&r->req);
+ r->req.aiocb = bdrv_aio_discard(s->qdev.conf.bs,
+ r->req.cmd.lba * (s->qdev.blocksize / 512),
+ nb_sectors * (s->qdev.blocksize / 512),
+ scsi_aio_complete, r);
+ return 0;
default:
+ DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]);
scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
- return -1;
+ return 0;
+ }
+ assert(!r->req.aiocb);
+ r->iov.iov_len = MIN(buflen, req->cmd.xfer);
+ if (r->iov.iov_len == 0) {
+ scsi_req_complete(&r->req, GOOD);
+ }
+ if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
+ assert(r->iov.iov_len == req->cmd.xfer);
+ return -r->iov.iov_len;
+ } else {
+ return r->iov.iov_len;
}
- buflen = MIN(buflen, req->cmd.xfer);
- return buflen;
illegal_request:
if (r->req.status == -1) {
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
}
- return -1;
+ return 0;
+
+illegal_lba:
+ scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE));
+ return 0;
}
/* Execute a scsi command. Returns the length of the data expected by the
(eg. disk reads), negative for transfers to the device (eg. disk writes),
and zero if the command does not transfer any data. */
-static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
+static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf)
{
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req);
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev);
int32_t len;
uint8_t command;
- int rc;
command = buf[0];
- DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", req->lun, req->tag, buf[0]);
-
-#ifdef DEBUG_SCSI
- {
- int i;
- for (i = 1; i < r->req.cmd.len; i++) {
- printf(" 0x%02x", buf[i]);
- }
- printf("\n");
- }
-#endif
- switch (command) {
- case INQUIRY:
- case MODE_SENSE:
- case MODE_SENSE_10:
- case RESERVE:
- case RESERVE_10:
- case RELEASE:
- case RELEASE_10:
- case START_STOP:
- case ALLOW_MEDIUM_REMOVAL:
- case GET_CONFIGURATION:
- case GET_EVENT_STATUS_NOTIFICATION:
- case MECHANISM_STATUS:
- case REQUEST_SENSE:
- break;
-
- default:
- if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
- scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
- return 0;
- }
- break;
+ if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
+ scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
+ return 0;
}
switch (command) {
- case TEST_UNIT_READY:
- case INQUIRY:
- case MODE_SENSE:
- case MODE_SENSE_10:
- case RESERVE:
- case RESERVE_10:
- case RELEASE:
- case RELEASE_10:
- case START_STOP:
- case ALLOW_MEDIUM_REMOVAL:
- case READ_CAPACITY_10:
- case READ_TOC:
- case READ_DISC_INFORMATION:
- case READ_DVD_STRUCTURE:
- case GET_CONFIGURATION:
- case GET_EVENT_STATUS_NOTIFICATION:
- case MECHANISM_STATUS:
- case SERVICE_ACTION_IN_16:
- case REQUEST_SENSE:
- rc = scsi_disk_emulate_command(r);
- if (rc < 0) {
- return 0;
- }
-
- r->iov.iov_len = rc;
- break;
- case SYNCHRONIZE_CACHE:
- /* The request is used as the AIO opaque value, so add a ref. */
- scsi_req_ref(&r->req);
- bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
- r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_flush_complete, r);
- return 0;
case READ_6:
case READ_10:
case READ_12:
case READ_16:
len = r->req.cmd.xfer / s->qdev.blocksize;
DPRINTF("Read (sector %" PRId64 ", count %d)\n", r->req.cmd.lba, len);
- if (r->req.cmd.lba > s->qdev.max_lba) {
+ if (r->req.cmd.buf[1] & 0xe0) {
+ goto illegal_request;
+ }
+ if (r->req.cmd.lba > r->req.cmd.lba + len ||
+ r->req.cmd.lba + len - 1 > s->qdev.max_lba) {
goto illegal_lba;
}
r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512);
r->sector_count = len * (s->qdev.blocksize / 512);
break;
- case VERIFY_10:
- case VERIFY_12:
- case VERIFY_16:
case WRITE_6:
case WRITE_10:
case WRITE_12:
case WRITE_VERIFY_10:
case WRITE_VERIFY_12:
case WRITE_VERIFY_16:
+ if (bdrv_is_read_only(s->qdev.conf.bs)) {
+ scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED));
+ return 0;
+ }
+ /* fallthrough */
+ case VERIFY_10:
+ case VERIFY_12:
+ case VERIFY_16:
len = r->req.cmd.xfer / s->qdev.blocksize;
DPRINTF("Write %s(sector %" PRId64 ", count %d)\n",
(command & 0xe) == 0xe ? "And Verify " : "",
r->req.cmd.lba, len);
- if (r->req.cmd.lba > s->qdev.max_lba) {
+ if (r->req.cmd.buf[1] & 0xe0) {
+ goto illegal_request;
+ }
+ if (r->req.cmd.lba > r->req.cmd.lba + len ||
+ r->req.cmd.lba + len - 1 > s->qdev.max_lba) {
goto illegal_lba;
}
r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512);
r->sector_count = len * (s->qdev.blocksize / 512);
- break;
- case MODE_SELECT:
- DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer);
- /* We don't support mode parameter changes.
- Allow the mode parameter header + block descriptors only. */
- if (r->req.cmd.xfer > 12) {
- goto fail;
- }
- break;
- case MODE_SELECT_10:
- DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer);
- /* We don't support mode parameter changes.
- Allow the mode parameter header + block descriptors only. */
- if (r->req.cmd.xfer > 16) {
- goto fail;
- }
- break;
- case SEEK_10:
- DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba);
- if (r->req.cmd.lba > s->qdev.max_lba) {
- goto illegal_lba;
- }
- break;
- case WRITE_SAME_10:
- len = lduw_be_p(&buf[7]);
- goto write_same;
- case WRITE_SAME_16:
- len = ldl_be_p(&buf[10]) & 0xffffffffULL;
- write_same:
-
- DPRINTF("WRITE SAME() (sector %" PRId64 ", count %d)\n",
- r->req.cmd.lba, len);
-
- if (r->req.cmd.lba > s->qdev.max_lba) {
- goto illegal_lba;
- }
-
- /*
- * We only support WRITE SAME with the unmap bit set for now.
- */
- if (!(buf[1] & 0x8)) {
- goto fail;
- }
-
- rc = bdrv_discard(s->qdev.conf.bs,
- r->req.cmd.lba * (s->qdev.blocksize / 512),
- len * (s->qdev.blocksize / 512));
- if (rc < 0) {
- /* XXX: better error code ?*/
- goto fail;
- }
-
break;
default:
- DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]);
- scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
- return 0;
- fail:
+ abort();
+ illegal_request:
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
return 0;
illegal_lba:
scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE));
return 0;
}
- if (r->sector_count == 0 && r->iov.iov_len == 0) {
+ if (r->sector_count == 0) {
scsi_req_complete(&r->req, GOOD);
}
- len = r->sector_count * 512 + r->iov.iov_len;
+ assert(r->iov.iov_len == 0);
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
- return -len;
+ return -r->sector_count * 512;
} else {
- if (!r->sector_count) {
- r->sector_count = -1;
- }
- return len;
+ return r->sector_count * 512;
}
}
blockdev_mark_auto_del(s->qdev.conf.bs);
}
+static void scsi_disk_resize_cb(void *opaque)
+{
+ SCSIDiskState *s = opaque;
+
+ /* SPC lists this sense code as available only for
+ * direct-access devices.
+ */
+ if (s->qdev.type == TYPE_DISK) {
+ scsi_device_set_ua(&s->qdev, SENSE_CODE(CAPACITY_CHANGED));
+ scsi_device_report_change(&s->qdev, SENSE_CODE(CAPACITY_CHANGED));
+ }
+}
+
static void scsi_cd_change_media_cb(void *opaque, bool load)
{
SCSIDiskState *s = opaque;
*/
s->media_changed = load;
s->tray_open = !load;
- s->qdev.unit_attention = SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM);
+ scsi_device_set_ua(&s->qdev, SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM));
s->media_event = true;
s->eject_request = false;
}
return ((SCSIDiskState *)opaque)->tray_locked;
}
-static const BlockDevOps scsi_cd_block_ops = {
+static const BlockDevOps scsi_disk_removable_block_ops = {
.change_media_cb = scsi_cd_change_media_cb,
.eject_request_cb = scsi_cd_eject_request_cb,
.is_tray_open = scsi_cd_is_tray_open,
.is_medium_locked = scsi_cd_is_medium_locked,
+
+ .resize_cb = scsi_disk_resize_cb,
+};
+
+static const BlockDevOps scsi_disk_block_ops = {
+ .resize_cb = scsi_disk_resize_cb,
};
static void scsi_disk_unit_attention_reported(SCSIDevice *dev)
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
if (s->media_changed) {
s->media_changed = false;
- s->qdev.unit_attention = SENSE_CODE(MEDIUM_CHANGED);
+ scsi_device_set_ua(&s->qdev, SENSE_CODE(MEDIUM_CHANGED));
}
}
if (!s->version) {
s->version = g_strdup(qemu_get_version());
}
+ if (!s->vendor) {
+ s->vendor = g_strdup("QEMU");
+ }
if (bdrv_is_sg(s->qdev.conf.bs)) {
error_report("unwanted /dev/sg*");
}
if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) {
- bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_cd_block_ops, s);
+ bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s);
+ } else {
+ bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s);
}
bdrv_set_buffer_alignment(s->qdev.conf.bs, s->qdev.blocksize);
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
s->qdev.blocksize = s->qdev.conf.logical_block_size;
s->qdev.type = TYPE_DISK;
+ if (!s->product) {
+ s->product = g_strdup("QEMU HARDDISK");
+ }
return scsi_initfn(&s->qdev);
}
s->qdev.blocksize = 2048;
s->qdev.type = TYPE_ROM;
s->features |= 1 << SCSI_DISK_F_REMOVABLE;
+ if (!s->product) {
+ s->product = g_strdup("QEMU CD-ROM");
+ }
return scsi_initfn(&s->qdev);
}
}
}
-static const SCSIReqOps scsi_disk_reqops = {
+static const SCSIReqOps scsi_disk_emulate_reqops = {
.size = sizeof(SCSIDiskReq),
.free_req = scsi_free_request,
- .send_command = scsi_send_command,
+ .send_command = scsi_disk_emulate_command,
+ .read_data = scsi_disk_emulate_read_data,
+ .write_data = scsi_disk_emulate_write_data,
+ .get_buf = scsi_get_buf,
+};
+
+static const SCSIReqOps scsi_disk_dma_reqops = {
+ .size = sizeof(SCSIDiskReq),
+ .free_req = scsi_free_request,
+ .send_command = scsi_disk_dma_command,
.read_data = scsi_read_data,
.write_data = scsi_write_data,
.cancel_io = scsi_cancel_io,
.save_request = scsi_disk_save_request,
};
+static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = {
+ [TEST_UNIT_READY] = &scsi_disk_emulate_reqops,
+ [INQUIRY] = &scsi_disk_emulate_reqops,
+ [MODE_SENSE] = &scsi_disk_emulate_reqops,
+ [MODE_SENSE_10] = &scsi_disk_emulate_reqops,
+ [START_STOP] = &scsi_disk_emulate_reqops,
+ [ALLOW_MEDIUM_REMOVAL] = &scsi_disk_emulate_reqops,
+ [READ_CAPACITY_10] = &scsi_disk_emulate_reqops,
+ [READ_TOC] = &scsi_disk_emulate_reqops,
+ [READ_DVD_STRUCTURE] = &scsi_disk_emulate_reqops,
+ [READ_DISC_INFORMATION] = &scsi_disk_emulate_reqops,
+ [GET_CONFIGURATION] = &scsi_disk_emulate_reqops,
+ [GET_EVENT_STATUS_NOTIFICATION] = &scsi_disk_emulate_reqops,
+ [MECHANISM_STATUS] = &scsi_disk_emulate_reqops,
+ [SERVICE_ACTION_IN_16] = &scsi_disk_emulate_reqops,
+ [REQUEST_SENSE] = &scsi_disk_emulate_reqops,
+ [SYNCHRONIZE_CACHE] = &scsi_disk_emulate_reqops,
+ [SEEK_10] = &scsi_disk_emulate_reqops,
+ [MODE_SELECT] = &scsi_disk_emulate_reqops,
+ [MODE_SELECT_10] = &scsi_disk_emulate_reqops,
+ [WRITE_SAME_10] = &scsi_disk_emulate_reqops,
+ [WRITE_SAME_16] = &scsi_disk_emulate_reqops,
+
+ [READ_6] = &scsi_disk_dma_reqops,
+ [READ_10] = &scsi_disk_dma_reqops,
+ [READ_12] = &scsi_disk_dma_reqops,
+ [READ_16] = &scsi_disk_dma_reqops,
+ [VERIFY_10] = &scsi_disk_dma_reqops,
+ [VERIFY_12] = &scsi_disk_dma_reqops,
+ [VERIFY_16] = &scsi_disk_dma_reqops,
+ [WRITE_6] = &scsi_disk_dma_reqops,
+ [WRITE_10] = &scsi_disk_dma_reqops,
+ [WRITE_12] = &scsi_disk_dma_reqops,
+ [WRITE_16] = &scsi_disk_dma_reqops,
+ [WRITE_VERIFY_10] = &scsi_disk_dma_reqops,
+ [WRITE_VERIFY_12] = &scsi_disk_dma_reqops,
+ [WRITE_VERIFY_16] = &scsi_disk_dma_reqops,
+};
+
static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
uint8_t *buf, void *hba_private)
{
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d);
SCSIRequest *req;
+ const SCSIReqOps *ops;
+ uint8_t command;
+
+#ifdef DEBUG_SCSI
+ DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, buf[0]);
+ {
+ int i;
+ for (i = 1; i < r->req.cmd.len; i++) {
+ printf(" 0x%02x", buf[i]);
+ }
+ printf("\n");
+ }
+#endif
- req = scsi_req_alloc(&scsi_disk_reqops, &s->qdev, tag, lun, hba_private);
+ command = buf[0];
+ ops = scsi_disk_reqops_dispatch[command];
+ if (!ops) {
+ ops = &scsi_disk_emulate_reqops;
+ }
+ req = scsi_req_alloc(ops, &s->qdev, tag, lun, hba_private);
return req;
}
* unreliable, too. It is even possible that reads deliver random data
* from the host page cache (this is probably a Linux bug).
*
- * We might use scsi_disk_reqops as long as no writing commands are
+ * We might use scsi_disk_dma_reqops as long as no writing commands are
* seen, but performance usually isn't paramount on optical media. So,
* just make scsi-block operate the same as scsi-generic for them.
*/
- if (s->qdev.type == TYPE_ROM) {
- break;
- }
- return scsi_req_alloc(&scsi_disk_reqops, &s->qdev, tag, lun,
- hba_private);
+ if (s->qdev.type != TYPE_ROM) {
+ return scsi_req_alloc(&scsi_disk_dma_reqops, &s->qdev, tag, lun,
+ hba_private);
+ }
}
return scsi_req_alloc(&scsi_generic_req_ops, &s->qdev, tag, lun,
}
#endif
-#define DEFINE_SCSI_DISK_PROPERTIES() \
- DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \
- DEFINE_PROP_STRING("ver", SCSIDiskState, version), \
- DEFINE_PROP_STRING("serial", SCSIDiskState, serial)
+#define DEFINE_SCSI_DISK_PROPERTIES() \
+ DEFINE_BLOCK_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)
static Property scsi_hd_properties[] = {
DEFINE_SCSI_DISK_PROPERTIES(),
#ifdef __linux__
static Property scsi_block_properties[] = {
- DEFINE_SCSI_DISK_PROPERTIES(),
+ DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.conf.bs),
DEFINE_PROP_END_OF_LIST(),
};
void (*transfer_data)(SCSIRequest *req, uint32_t arg);
void (*complete)(SCSIRequest *req, uint32_t arg, size_t resid);
void (*cancel)(SCSIRequest *req);
+ void (*hotplug)(SCSIBus *bus, SCSIDevice *dev);
+ void (*hot_unplug)(SCSIBus *bus, SCSIDevice *dev);
+ void (*change)(SCSIBus *bus, SCSIDevice *dev, SCSISense sense);
QEMUSGList *(*get_sg_list)(SCSIRequest *req);
void (*save_request)(QEMUFile *f, SCSIRequest *req);
extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE;
/* Illegal request, Invalid field in CDB */
extern const struct SCSISense sense_code_INVALID_FIELD;
+/* Illegal request, Invalid field in parameter list */
+extern const struct SCSISense sense_code_INVALID_PARAM;
+/* Illegal request, Parameter list length error */
+extern const struct SCSISense sense_code_INVALID_PARAM_LEN;
/* Illegal request, LUN not supported */
extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
/* Illegal request, Saving parameters not supported */
extern const struct SCSISense sense_code_I_T_NEXUS_LOSS;
/* Command aborted, Logical Unit failure */
extern const struct SCSISense sense_code_LUN_FAILURE;
+/* LUN not ready, Capacity data has changed */
+extern const struct SCSISense sense_code_CAPACITY_CHANGED;
/* LUN not ready, Medium not present */
extern const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM;
/* Unit attention, Power on, reset or bus device reset occurred */
extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
/* Unit attention, Device internal reset */
extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
+/* Data Protection, Write Protected */
+extern const struct SCSISense sense_code_WRITE_PROTECTED;
#define SENSE_CODE(x) sense_code_ ## x
void scsi_req_cancel(SCSIRequest *req);
void scsi_req_retry(SCSIRequest *req);
void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense);
+void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense);
+void scsi_device_report_change(SCSIDevice *dev, SCSISense sense);
int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed);
SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int target, int lun);
return -EINVAL;
}
- vdev->nvectors = proxy->nvectors;
+ vdev->nvectors = proxy->nvectors == DEV_NVECTORS_UNSPECIFIED
+ ? proxy->scsi.num_queues + 3
+ : proxy->nvectors;
virtio_init_pci(proxy, vdev);
/* make the actual value visible */
}
static Property virtio_scsi_properties[] = {
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
+ DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, DEV_NVECTORS_UNSPECIFIED),
DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOPCIProxy, host_features, scsi),
DEFINE_PROP_END_OF_LIST(),
};
#define VIRTIO_SCSI_MAX_TARGET 255
#define VIRTIO_SCSI_MAX_LUN 16383
+/* Feature Bits */
+#define VIRTIO_SCSI_F_INOUT 0
+#define VIRTIO_SCSI_F_HOTPLUG 1
+#define VIRTIO_SCSI_F_CHANGE 2
+
/* Response codes */
#define VIRTIO_SCSI_S_OK 0
#define VIRTIO_SCSI_S_OVERRUN 1
#define VIRTIO_SCSI_T_NO_EVENT 0
#define VIRTIO_SCSI_T_TRANSPORT_RESET 1
#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2
+#define VIRTIO_SCSI_T_PARAM_CHANGE 3
+
+/* Reasons for transport reset event */
+#define VIRTIO_SCSI_EVT_RESET_HARD 0
+#define VIRTIO_SCSI_EVT_RESET_RESCAN 1
+#define VIRTIO_SCSI_EVT_RESET_REMOVED 2
/* SCSI command request, followed by data-out */
typedef struct {
uint32_t sense_size;
uint32_t cdb_size;
int resetting;
+ bool events_dropped;
VirtQueue *ctrl_vq;
VirtQueue *event_vq;
VirtQueue *cmd_vqs[0];
static void virtio_scsi_parse_req(VirtIOSCSI *s, VirtQueue *vq,
VirtIOSCSIReq *req)
{
- assert(req->elem.out_num && req->elem.in_num);
+ assert(req->elem.in_num);
req->vq = vq;
req->dev = s;
req->sreq = NULL;
- req->req.buf = req->elem.out_sg[0].iov_base;
+ if (req->elem.out_num) {
+ req->req.buf = req->elem.out_sg[0].iov_base;
+ }
req->resp.buf = req->elem.in_sg[0].iov_base;
if (req->elem.out_num > 1) {
}
}
-static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq)
-{
-}
-
static void virtio_scsi_command_complete(SCSIRequest *r, uint32_t status,
size_t resid)
{
static uint32_t virtio_scsi_get_features(VirtIODevice *vdev,
uint32_t requested_features)
{
+ requested_features |= (1UL << VIRTIO_SCSI_F_HOTPLUG);
+ requested_features |= (1UL << VIRTIO_SCSI_F_CHANGE);
return requested_features;
}
s->sense_size = VIRTIO_SCSI_SENSE_SIZE;
s->cdb_size = VIRTIO_SCSI_CDB_SIZE;
+ s->events_dropped = false;
}
/* The device does not have anything to save beyond the virtio data.
return 0;
}
+static void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
+ uint32_t event, uint32_t reason)
+{
+ VirtIOSCSIReq *req = virtio_scsi_pop_req(s, s->event_vq);
+ VirtIOSCSIEvent *evt;
+ int in_size;
+
+ if (!req) {
+ s->events_dropped = true;
+ return;
+ }
+
+ if (req->elem.out_num || req->elem.in_num != 1) {
+ virtio_scsi_bad_req();
+ }
+
+ if (s->events_dropped) {
+ event |= VIRTIO_SCSI_T_EVENTS_MISSED;
+ s->events_dropped = false;
+ }
+
+ in_size = req->elem.in_sg[0].iov_len;
+ if (in_size < sizeof(VirtIOSCSIEvent)) {
+ virtio_scsi_bad_req();
+ }
+
+ evt = req->resp.event;
+ memset(evt, 0, sizeof(VirtIOSCSIEvent));
+ evt->event = event;
+ evt->reason = reason;
+ if (!dev) {
+ assert(event == VIRTIO_SCSI_T_NO_EVENT);
+ } else {
+ evt->lun[0] = 1;
+ evt->lun[1] = dev->id;
+
+ /* Linux wants us to keep the same encoding we use for REPORT LUNS. */
+ if (dev->lun >= 256) {
+ evt->lun[2] = (dev->lun >> 8) | 0x40;
+ }
+ evt->lun[3] = dev->lun & 0xFF;
+ }
+ virtio_scsi_complete_req(req);
+}
+
+static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq)
+{
+ VirtIOSCSI *s = (VirtIOSCSI *)vdev;
+
+ if (s->events_dropped) {
+ virtio_scsi_push_event(s, NULL, VIRTIO_SCSI_T_NO_EVENT, 0);
+ }
+}
+
+static void virtio_scsi_change(SCSIBus *bus, SCSIDevice *dev, SCSISense sense)
+{
+ VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
+
+ if (((s->vdev.guest_features >> VIRTIO_SCSI_F_CHANGE) & 1) &&
+ (s->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK) &&
+ dev->type != TYPE_ROM) {
+ virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_PARAM_CHANGE,
+ sense.asc | (sense.ascq << 8));
+ }
+}
+
+static void virtio_scsi_hotplug(SCSIBus *bus, SCSIDevice *dev)
+{
+ VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
+
+ if (((s->vdev.guest_features >> VIRTIO_SCSI_F_HOTPLUG) & 1) &&
+ (s->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK)) {
+ virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_TRANSPORT_RESET,
+ VIRTIO_SCSI_EVT_RESET_RESCAN);
+ }
+}
+
+static void virtio_scsi_hot_unplug(SCSIBus *bus, SCSIDevice *dev)
+{
+ VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
+
+ if ((s->vdev.guest_features >> VIRTIO_SCSI_F_HOTPLUG) & 1) {
+ virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_TRANSPORT_RESET,
+ VIRTIO_SCSI_EVT_RESET_REMOVED);
+ }
+}
+
static struct SCSIBusInfo virtio_scsi_scsi_info = {
.tcq = true,
.max_channel = VIRTIO_SCSI_MAX_CHANNEL,
.complete = virtio_scsi_command_complete,
.cancel = virtio_scsi_request_cancelled,
+ .change = virtio_scsi_change,
+ .hotplug = virtio_scsi_hotplug,
+ .hot_unplug = virtio_scsi_hot_unplug,
.get_sg_list = virtio_scsi_get_sg_list,
.save_request = virtio_scsi_save_request,
.load_request = virtio_scsi_load_request,
#include "qemu-common.h"
#include "notify.h"
#include "error.h"
+#include "vmstate.h"
struct MigrationParams {
bool blk;
uint64_t ram_bytes_transferred(void);
uint64_t ram_bytes_total(void);
-int ram_save_live(QEMUFile *f, int stage, void *opaque);
-int ram_load(QEMUFile *f, void *opaque, int version_id);
+extern SaveVMHandlers savevm_ram_handlers;
/**
* @migrate_add_blocker - prevent migration from proceeding
/* cutils.c */
void pstrcpy(char *buf, int buf_size, const char *str);
+void strpadcpy(char *buf, int buf_size, const char *str, char pad);
char *pstrcat(char *buf, int buf_size, const char *s);
int strstart(const char *str, const char *val, const char **ptr);
int stristart(const char *str, const char *val, const char **ptr);
#include <libgen.h>
#include <pthread.h>
-#define SOCKET_PATH "/var/lock/qemu-nbd-%s"
+#define SOCKET_PATH "/var/lock/qemu-nbd-%s"
+#define QEMU_NBD_OPT_CACHE 1
+#define QEMU_NBD_OPT_AIO 2
static NBDExport *exp;
static int verbose;
static void usage(const char *name)
{
- printf(
+ (printf) (
"Usage: %s [OPTIONS] FILE\n"
"QEMU Disk Network Block Device Server\n"
"\n"
+" -h, --help display this help and exit\n"
+" -V, --version output version information and exit\n"
+"\n"
+"Connection properties:\n"
" -p, --port=PORT port to listen on (default `%d')\n"
-" -o, --offset=OFFSET offset into the image\n"
" -b, --bind=IFACE interface to bind to (default `0.0.0.0')\n"
" -k, --socket=PATH path to the unix socket\n"
" (default '"SOCKET_PATH"')\n"
-" -r, --read-only export read-only\n"
-" -P, --partition=NUM only expose partition NUM\n"
-" -s, --snapshot use snapshot file\n"
-" -n, --nocache disable host cache\n"
-" -c, --connect=DEV connect FILE to the local NBD device DEV\n"
-" -d, --disconnect disconnect the specified device\n"
" -e, --shared=NUM device can be shared by NUM clients (default '1')\n"
" -t, --persistent don't exit on the last connection\n"
" -v, --verbose display extra debugging information\n"
-" -h, --help display this help and exit\n"
-" -V, --version output version information and exit\n"
"\n"
-"Report bugs to <anthony@codemonkey.ws>\n"
+"Exposing part of the image:\n"
+" -o, --offset=OFFSET offset into the image\n"
+" -P, --partition=NUM only expose partition NUM\n"
+"\n"
+#ifdef __linux__
+"Kernel NBD client support:\n"
+" -c, --connect=DEV connect FILE to the local NBD device DEV\n"
+" -d, --disconnect disconnect the specified device\n"
+"\n"
+#endif
+"\n"
+"Block device options:\n"
+" -r, --read-only export read-only\n"
+" -s, --snapshot use snapshot file\n"
+" -n, --nocache disable host cache\n"
+" --cache=MODE set cache mode (none, writeback, ...)\n"
+#ifdef CONFIG_LINUX_AIO
+" --aio=MODE set AIO mode (native or threads)\n"
+#endif
+"\n"
+"Report bugs to <qemu-devel@nongnu.org>\n"
, name, NBD_DEFAULT_PORT, "DEVICE");
}
{ "disconnect", 0, NULL, 'd' },
{ "snapshot", 0, NULL, 's' },
{ "nocache", 0, NULL, 'n' },
+ { "cache", 1, NULL, QEMU_NBD_OPT_CACHE },
+#ifdef CONFIG_LINUX_AIO
+ { "aio", 1, NULL, QEMU_NBD_OPT_AIO },
+#endif
{ "shared", 1, NULL, 'e' },
{ "persistent", 0, NULL, 't' },
{ "verbose", 0, NULL, 'v' },
int ret;
int fd;
int persistent = 0;
+ bool seen_cache = false;
+#ifdef CONFIG_LINUX_AIO
+ bool seen_aio = false;
+#endif
pthread_t client_thread;
/* The client thread uses SIGTERM to interrupt the server. A signal
flags |= BDRV_O_SNAPSHOT;
break;
case 'n':
- flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB;
+ optarg = (char *) "none";
+ /* fallthrough */
+ case QEMU_NBD_OPT_CACHE:
+ if (seen_cache) {
+ errx(EXIT_FAILURE, "-n and --cache can only be specified once");
+ }
+ seen_cache = true;
+ if (bdrv_parse_cache_flags(optarg, &flags) == -1) {
+ errx(EXIT_FAILURE, "Invalid cache mode `%s'", optarg);
+ }
+ break;
+#ifdef CONFIG_LINUX_AIO
+ case QEMU_NBD_OPT_AIO:
+ if (seen_aio) {
+ errx(EXIT_FAILURE, "--aio can only be specified once");
+ }
+ seen_aio = true;
+ if (!strcmp(optarg, "native")) {
+ flags |= BDRV_O_NATIVE_AIO;
+ } else if (!strcmp(optarg, "threads")) {
+ /* this is the default */
+ } else {
+ errx(EXIT_FAILURE, "invalid aio mode `%s'", optarg);
+ }
break;
+#endif
case 'b':
bindto = optarg;
break;
int alias_id;
int version_id;
int section_id;
- SaveSetParamsHandler *set_params;
- SaveLiveStateHandler *save_live_state;
- SaveStateHandler *save_state;
- LoadStateHandler *load_state;
+ SaveVMHandlers *ops;
const VMStateDescription *vmsd;
void *opaque;
CompatEntry *compat;
const char *idstr,
int instance_id,
int version_id,
- SaveSetParamsHandler *set_params,
- SaveLiveStateHandler *save_live_state,
- SaveStateHandler *save_state,
- LoadStateHandler *load_state,
+ SaveVMHandlers *ops,
void *opaque)
{
SaveStateEntry *se;
se = g_malloc0(sizeof(SaveStateEntry));
se->version_id = version_id;
se->section_id = global_section_id++;
- se->set_params = set_params;
- se->save_live_state = save_live_state;
- se->save_state = save_state;
- se->load_state = load_state;
+ se->ops = ops;
se->opaque = opaque;
se->vmsd = NULL;
se->no_migrate = 0;
/* if this is a live_savem then set is_ram */
- if (save_live_state != NULL) {
+ if (ops->save_live_setup != NULL) {
se->is_ram = 1;
}
LoadStateHandler *load_state,
void *opaque)
{
+ SaveVMHandlers *ops = g_malloc0(sizeof(SaveVMHandlers));
+ ops->save_state = save_state;
+ ops->load_state = load_state;
return register_savevm_live(dev, idstr, instance_id, version_id,
- NULL, NULL, save_state, load_state, opaque);
+ ops, opaque);
}
void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque)
if (se->compat) {
g_free(se->compat);
}
+ g_free(se->ops);
g_free(se);
}
}
se = g_malloc0(sizeof(SaveStateEntry));
se->version_id = vmsd->version_id;
se->section_id = global_section_id++;
- se->save_live_state = NULL;
- se->save_state = NULL;
- se->load_state = NULL;
se->opaque = opaque;
se->vmsd = vmsd;
se->alias_id = alias_id;
static int vmstate_load(QEMUFile *f, SaveStateEntry *se, int version_id)
{
if (!se->vmsd) { /* Old style */
- return se->load_state(f, se->opaque, version_id);
+ return se->ops->load_state(f, se->opaque, version_id);
}
return vmstate_load_state(f, se->vmsd, se->opaque, version_id);
}
static void vmstate_save(QEMUFile *f, SaveStateEntry *se)
{
if (!se->vmsd) { /* Old style */
- se->save_state(f, se->opaque);
+ se->ops->save_state(f, se->opaque);
return;
}
vmstate_save_state(f,se->vmsd, se->opaque);
int ret;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
- if(se->set_params == NULL) {
+ if (!se->ops || !se->ops->set_params) {
continue;
}
- se->set_params(params, se->opaque);
+ se->ops->set_params(params, se->opaque);
}
qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
int len;
- if (se->save_live_state == NULL)
+ if (!se->ops || !se->ops->save_live_setup) {
continue;
-
+ }
+ if (se->ops && se->ops->is_active) {
+ if (!se->ops->is_active(se->opaque)) {
+ continue;
+ }
+ }
/* Section type */
qemu_put_byte(f, QEMU_VM_SECTION_START);
qemu_put_be32(f, se->section_id);
qemu_put_be32(f, se->instance_id);
qemu_put_be32(f, se->version_id);
- ret = se->save_live_state(f, QEMU_VM_SECTION_START, se->opaque);
+ ret = se->ops->save_live_setup(f, se->opaque);
if (ret < 0) {
qemu_savevm_state_cancel(f);
return ret;
int ret = 1;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
- if (se->save_live_state == NULL)
+ if (!se->ops || !se->ops->save_live_iterate) {
continue;
-
+ }
+ if (se->ops && se->ops->is_active) {
+ if (!se->ops->is_active(se->opaque)) {
+ continue;
+ }
+ }
if (qemu_file_rate_limit(f)) {
return 0;
}
qemu_put_byte(f, QEMU_VM_SECTION_PART);
qemu_put_be32(f, se->section_id);
- ret = se->save_live_state(f, QEMU_VM_SECTION_PART, se->opaque);
+ ret = se->ops->save_live_iterate(f, se->opaque);
trace_savevm_section_end(se->section_id);
if (ret <= 0) {
cpu_synchronize_all_states();
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
- if (se->save_live_state == NULL)
+ if (!se->ops || !se->ops->save_live_complete) {
continue;
-
+ }
+ if (se->ops && se->ops->is_active) {
+ if (!se->ops->is_active(se->opaque)) {
+ continue;
+ }
+ }
trace_savevm_section_start();
/* Section type */
qemu_put_byte(f, QEMU_VM_SECTION_END);
qemu_put_be32(f, se->section_id);
- ret = se->save_live_state(f, QEMU_VM_SECTION_END, se->opaque);
+ ret = se->ops->save_live_complete(f, se->opaque);
trace_savevm_section_end(se->section_id);
if (ret < 0) {
return ret;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
int len;
- if (se->save_state == NULL && se->vmsd == NULL)
+ if ((!se->ops || !se->ops->save_state) && !se->vmsd) {
continue;
-
+ }
trace_savevm_section_start();
/* Section type */
qemu_put_byte(f, QEMU_VM_SECTION_FULL);
SaveStateEntry *se;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
- if (se->save_live_state) {
- se->save_live_state(f, -1, se->opaque);
+ if (se->ops && se->ops->cancel) {
+ se->ops->cancel(se->opaque);
}
}
}
if (se->is_ram) {
continue;
}
- if (se->save_state == NULL && se->vmsd == NULL) {
+ if ((!se->ops || !se->ops->save_state) && !se->vmsd) {
continue;
}
# hw/scsi-bus.c
scsi_req_alloc(int target, int lun, int tag) "target %d lun %d tag %d"
+scsi_req_cancel(int target, int lun, int tag) "target %d lun %d tag %d"
scsi_req_data(int target, int lun, int tag, int len) "target %d lun %d tag %d len %d"
scsi_req_data_canceled(int target, int lun, int tag, int len) "target %d lun %d tag %d len %d"
scsi_req_dequeue(int target, int lun, int tag) "target %d lun %d tag %d"
scsi_req_parsed_lba(int target, int lun, int tag, int cmd, uint64_t lba) "target %d lun %d tag %d command %d lba %"PRIu64
scsi_req_parse_bad(int target, int lun, int tag, int cmd) "target %d lun %d tag %d command %d"
scsi_req_build_sense(int target, int lun, int tag, int key, int asc, int ascq) "target %d lun %d tag %d key %#02x asc %#02x ascq %#02x"
+scsi_device_set_ua(int target, int lun, int key, int asc, int ascq) "target %d lun %d key %#02x asc %#02x ascq %#02x"
scsi_report_luns(int target, int lun, int tag) "target %d lun %d tag %d"
scsi_inquiry(int target, int lun, int tag, int cdb1, int cdb2) "target %d lun %d tag %d page %#02x/%#02x"
scsi_test_unit_ready(int target, int lun, int tag) "target %d lun %d tag %d"
megasas_dcmd_ld_get_info(int cmd, int ld_id) "scmd %d: DCMD LD get info for dev %d"
megasas_dcmd_pd_get_info(int cmd, int pd_id) "scmd %d: DCMD PD get info for dev %d"
megasas_dcmd_pd_list_query(int cmd, int flags) "scmd %d: DCMD PD list query flags %x"
-megasas_dcmd_dump_frame(int offset, char f0, char f1, char f2, char f3, char f4, char f5, char f6, char f7) "0x%x: %02x %02x %02x %02x %02x %02x %02x %02x"
+megasas_dcmd_unsupported(int cmd, unsigned long size) "scmd %d: set properties len %ld"
megasas_abort_frame(int cmd, int abort_cmd) "scmd %d: aborting frame %x"
megasas_abort_no_cmd(int cmd, uint64_t context) "scmd %d: no active command for frame context %" PRIx64 ""
megasas_abort_invalid_context(int cmd, uint64_t context, int abort_cmd) "scmd %d: invalid frame context %" PRIx64 " for abort frame %x"
default_drive(default_sdcard, snapshot, machine->use_scsi,
IF_SD, 0, SD_OPTS);
- register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
- ram_load, NULL);
+ register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
if (nb_numa_nodes > 0) {
int i;
#ifndef QEMU_VMSTATE_H
#define QEMU_VMSTATE_H 1
-typedef void SaveSetParamsHandler(const MigrationParams *params, void * opaque);
typedef void SaveStateHandler(QEMUFile *f, void *opaque);
-typedef int SaveLiveStateHandler(QEMUFile *f, int stage, void *opaque);
typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
+typedef struct SaveVMHandlers {
+ void (*set_params)(const MigrationParams *params, void * opaque);
+ SaveStateHandler *save_state;
+ int (*save_live_setup)(QEMUFile *f, void *opaque);
+ int (*save_live_iterate)(QEMUFile *f, void *opaque);
+ int (*save_live_complete)(QEMUFile *f, void *opaque);
+ void (*cancel)(void *opaque);
+ LoadStateHandler *load_state;
+ bool (*is_active)(void *opaque);
+} SaveVMHandlers;
+
int register_savevm(DeviceState *dev,
const char *idstr,
int instance_id,
const char *idstr,
int instance_id,
int version_id,
- SaveSetParamsHandler *set_params,
- SaveLiveStateHandler *save_live_state,
- SaveStateHandler *save_state,
- LoadStateHandler *load_state,
+ SaveVMHandlers *ops,
void *opaque);
void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
projects / mirror_qemu.git / commitdiff