int events;
QEMUTimer *nop_timer;
QEMUTimer *event_timer;
+ QemuMutex mutex;
struct scsi_inquiry_logical_block_provisioning lbp;
struct scsi_inquiry_block_limits bl;
unsigned char *zeroblock;
static void iscsi_co_generic_bh_cb(void *opaque)
{
struct IscsiTask *iTask = opaque;
+
iTask->complete = 1;
- qemu_coroutine_enter(iTask->co);
+ aio_co_wake(iTask->co);
}
static void iscsi_retry_timer_expired(void *opaque)
struct IscsiTask *iTask = opaque;
iTask->complete = 1;
if (iTask->co) {
- qemu_coroutine_enter(iTask->co);
+ aio_co_wake(iTask->co);
}
}
#define SCSI_SENSE_ASCQ_PARAMETER_LIST_LENGTH_ERROR 0x1a00
#endif
+#ifndef LIBISCSI_API_VERSION
+#define LIBISCSI_API_VERSION 20130701
+#endif
+
static int iscsi_translate_sense(struct scsi_sense *sense)
{
int ret;
return ret;
}
+/* Called (via iscsi_service) with QemuMutex held. */
static void
iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
void *command_data, void *opaque)
static void iscsi_process_read(void *arg);
static void iscsi_process_write(void *arg);
+/* Called with QemuMutex held. */
static void
iscsi_set_events(IscsiLun *iscsilun)
{
false,
(ev & POLLIN) ? iscsi_process_read : NULL,
(ev & POLLOUT) ? iscsi_process_write : NULL,
+ NULL,
iscsilun);
iscsilun->events = ev;
}
IscsiLun *iscsilun = arg;
struct iscsi_context *iscsi = iscsilun->iscsi;
+ qemu_mutex_lock(&iscsilun->mutex);
iscsi_service(iscsi, POLLIN);
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
}
static void
IscsiLun *iscsilun = arg;
struct iscsi_context *iscsi = iscsilun->iscsi;
+ qemu_mutex_lock(&iscsilun->mutex);
iscsi_service(iscsi, POLLOUT);
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
}
static int64_t sector_lun2qemu(int64_t sector, IscsiLun *iscsilun)
if (allocated) {
bitmap_set(iscsilun->allocmap, cl_num_expanded, nb_cls_expanded);
} else {
- bitmap_clear(iscsilun->allocmap, cl_num_shrunk, nb_cls_shrunk);
+ if (nb_cls_shrunk > 0) {
+ bitmap_clear(iscsilun->allocmap, cl_num_shrunk, nb_cls_shrunk);
+ }
}
if (iscsilun->allocmap_valid == NULL) {
return;
}
if (valid) {
- bitmap_set(iscsilun->allocmap_valid, cl_num_shrunk, nb_cls_shrunk);
+ if (nb_cls_shrunk > 0) {
+ bitmap_set(iscsilun->allocmap_valid, cl_num_shrunk, nb_cls_shrunk);
+ }
} else {
bitmap_clear(iscsilun->allocmap_valid, cl_num_expanded,
nb_cls_expanded);
uint64_t lba;
uint32_t num_sectors;
bool fua = flags & BDRV_REQ_FUA;
+ int r = 0;
if (fua) {
assert(iscsilun->dpofua);
lba = sector_qemu2lun(sector_num, iscsilun);
num_sectors = sector_qemu2lun(nb_sectors, iscsilun);
iscsi_co_init_iscsitask(iscsilun, &iTask);
+ qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsilun->use_16_for_rw) {
+#if LIBISCSI_API_VERSION >= (20160603)
+ iTask.task = iscsi_write16_iov_task(iscsilun->iscsi, iscsilun->lun, lba,
+ NULL, num_sectors * iscsilun->block_size,
+ iscsilun->block_size, 0, 0, fua, 0, 0,
+ iscsi_co_generic_cb, &iTask,
+ (struct scsi_iovec *)iov->iov, iov->niov);
+ } else {
+ iTask.task = iscsi_write10_iov_task(iscsilun->iscsi, iscsilun->lun, lba,
+ NULL, num_sectors * iscsilun->block_size,
+ iscsilun->block_size, 0, 0, fua, 0, 0,
+ iscsi_co_generic_cb, &iTask,
+ (struct scsi_iovec *)iov->iov, iov->niov);
+ }
+#else
iTask.task = iscsi_write16_task(iscsilun->iscsi, iscsilun->lun, lba,
NULL, num_sectors * iscsilun->block_size,
iscsilun->block_size, 0, 0, fua, 0, 0,
iscsilun->block_size, 0, 0, fua, 0, 0,
iscsi_co_generic_cb, &iTask);
}
+#endif
if (iTask.task == NULL) {
+ qemu_mutex_unlock(&iscsilun->mutex);
return -ENOMEM;
}
+#if LIBISCSI_API_VERSION < (20160603)
scsi_task_set_iov_out(iTask.task, (struct scsi_iovec *) iov->iov,
iov->niov);
+#endif
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.task != NULL) {
if (iTask.status != SCSI_STATUS_GOOD) {
iscsi_allocmap_set_invalid(iscsilun, sector_num, nb_sectors);
- return iTask.err_code;
+ r = iTask.err_code;
+ goto out_unlock;
}
iscsi_allocmap_set_allocated(iscsilun, sector_num, nb_sectors);
- return 0;
+out_unlock:
+ qemu_mutex_unlock(&iscsilun->mutex);
+ return r;
}
goto out;
}
+ qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsi_get_lba_status_task(iscsilun->iscsi, iscsilun->lun,
sector_qemu2lun(sector_num, iscsilun),
8 + 16, iscsi_co_generic_cb,
&iTask) == NULL) {
ret = -ENOMEM;
- goto out;
+ goto out_unlock;
}
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.do_retry) {
* because the device is busy or the cmd is not
* supported) we pretend all blocks are allocated
* for backwards compatibility */
- goto out;
+ goto out_unlock;
}
lbas = scsi_datain_unmarshall(iTask.task);
if (lbas == NULL) {
ret = -EIO;
- goto out;
+ goto out_unlock;
}
lbasd = &lbas->descriptors[0];
if (sector_qemu2lun(sector_num, iscsilun) != lbasd->lba) {
ret = -EIO;
- goto out;
+ goto out_unlock;
}
*pnum = sector_lun2qemu(lbasd->num_blocks, iscsilun);
if (*pnum > nb_sectors) {
*pnum = nb_sectors;
}
+out_unlock:
+ qemu_mutex_unlock(&iscsilun->mutex);
out:
if (iTask.task != NULL) {
scsi_free_scsi_task(iTask.task);
num_sectors = sector_qemu2lun(nb_sectors, iscsilun);
iscsi_co_init_iscsitask(iscsilun, &iTask);
+ qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsilun->use_16_for_rw) {
+#if LIBISCSI_API_VERSION >= (20160603)
+ iTask.task = iscsi_read16_iov_task(iscsilun->iscsi, iscsilun->lun, lba,
+ num_sectors * iscsilun->block_size,
+ iscsilun->block_size, 0, 0, 0, 0, 0,
+ iscsi_co_generic_cb, &iTask,
+ (struct scsi_iovec *)iov->iov, iov->niov);
+ } else {
+ iTask.task = iscsi_read10_iov_task(iscsilun->iscsi, iscsilun->lun, lba,
+ num_sectors * iscsilun->block_size,
+ iscsilun->block_size,
+ 0, 0, 0, 0, 0,
+ iscsi_co_generic_cb, &iTask,
+ (struct scsi_iovec *)iov->iov, iov->niov);
+ }
+#else
iTask.task = iscsi_read16_task(iscsilun->iscsi, iscsilun->lun, lba,
num_sectors * iscsilun->block_size,
iscsilun->block_size, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
iscsi_co_generic_cb, &iTask);
}
+#endif
if (iTask.task == NULL) {
+ qemu_mutex_unlock(&iscsilun->mutex);
return -ENOMEM;
}
+#if LIBISCSI_API_VERSION < (20160603)
scsi_task_set_iov_in(iTask.task, (struct scsi_iovec *) iov->iov, iov->niov);
-
+#endif
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.task != NULL) {
iTask.complete = 0;
goto retry;
}
+ qemu_mutex_unlock(&iscsilun->mutex);
if (iTask.status != SCSI_STATUS_GOOD) {
return iTask.err_code;
struct IscsiTask iTask;
iscsi_co_init_iscsitask(iscsilun, &iTask);
+ qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsi_synchronizecache10_task(iscsilun->iscsi, iscsilun->lun, 0, 0, 0,
0, iscsi_co_generic_cb, &iTask) == NULL) {
+ qemu_mutex_unlock(&iscsilun->mutex);
return -ENOMEM;
}
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.task != NULL) {
iTask.complete = 0;
goto retry;
}
+ qemu_mutex_unlock(&iscsilun->mutex);
if (iTask.status != SCSI_STATUS_GOOD) {
return iTask.err_code;
}
#ifdef __linux__
+/* Called (via iscsi_service) with QemuMutex held. */
static void
iscsi_aio_ioctl_cb(struct iscsi_context *iscsi, int status,
void *command_data, void *opaque)
acb->task->expxferlen = acb->ioh->dxfer_len;
data.size = 0;
+ qemu_mutex_lock(&iscsilun->mutex);
if (acb->task->xfer_dir == SCSI_XFER_WRITE) {
if (acb->ioh->iovec_count == 0) {
data.data = acb->ioh->dxferp;
iscsi_aio_ioctl_cb,
(data.size > 0) ? &data : NULL,
acb) != 0) {
+ qemu_mutex_unlock(&iscsilun->mutex);
scsi_free_scsi_task(acb->task);
qemu_aio_unref(acb);
return NULL;
}
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
return &acb->common;
}
IscsiLun *iscsilun = bs->opaque;
struct IscsiTask iTask;
struct unmap_list list;
+ int r = 0;
- assert(is_byte_request_lun_aligned(offset, count, iscsilun));
+ if (!is_byte_request_lun_aligned(offset, count, iscsilun)) {
+ return -ENOTSUP;
+ }
if (!iscsilun->lbp.lbpu) {
/* UNMAP is not supported by the target */
list.num = count / iscsilun->block_size;
iscsi_co_init_iscsitask(iscsilun, &iTask);
+ qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsi_unmap_task(iscsilun->iscsi, iscsilun->lun, 0, 0, &list, 1,
iscsi_co_generic_cb, &iTask) == NULL) {
- return -ENOMEM;
+ r = -ENOMEM;
+ goto out_unlock;
}
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.task != NULL) {
/* the target might fail with a check condition if it
is not happy with the alignment of the UNMAP request
we silently fail in this case */
- return 0;
+ goto out_unlock;
}
if (iTask.status != SCSI_STATUS_GOOD) {
- return iTask.err_code;
+ r = iTask.err_code;
+ goto out_unlock;
}
iscsi_allocmap_set_invalid(iscsilun, offset >> BDRV_SECTOR_BITS,
count >> BDRV_SECTOR_BITS);
- return 0;
+out_unlock:
+ qemu_mutex_unlock(&iscsilun->mutex);
+ return r;
}
static int
uint64_t lba;
uint32_t nb_blocks;
bool use_16_for_ws = iscsilun->use_16_for_rw;
+ int r = 0;
if (!is_byte_request_lun_aligned(offset, count, iscsilun)) {
return -ENOTSUP;
}
}
+ qemu_mutex_lock(&iscsilun->mutex);
iscsi_co_init_iscsitask(iscsilun, &iTask);
retry:
if (use_16_for_ws) {
0, 0, iscsi_co_generic_cb, &iTask);
}
if (iTask.task == NULL) {
+ qemu_mutex_unlock(&iscsilun->mutex);
return -ENOMEM;
}
while (!iTask.complete) {
iscsi_set_events(iscsilun);
+ qemu_mutex_unlock(&iscsilun->mutex);
qemu_coroutine_yield();
+ qemu_mutex_lock(&iscsilun->mutex);
}
if (iTask.status == SCSI_STATUS_CHECK_CONDITION &&
/* WRITE SAME is not supported by the target */
iscsilun->has_write_same = false;
scsi_free_scsi_task(iTask.task);
- return -ENOTSUP;
+ r = -ENOTSUP;
+ goto out_unlock;
}
if (iTask.task != NULL) {
if (iTask.status != SCSI_STATUS_GOOD) {
iscsi_allocmap_set_invalid(iscsilun, offset >> BDRV_SECTOR_BITS,
count >> BDRV_SECTOR_BITS);
- return iTask.err_code;
+ r = iTask.err_code;
+ goto out_unlock;
}
if (flags & BDRV_REQ_MAY_UNMAP) {
count >> BDRV_SECTOR_BITS);
}
- return 0;
+out_unlock:
+ qemu_mutex_unlock(&iscsilun->mutex);
+ return r;
}
-static void parse_chap(struct iscsi_context *iscsi, const char *target,
+static void apply_chap(struct iscsi_context *iscsi, QemuOpts *opts,
Error **errp)
{
- QemuOptsList *list;
- QemuOpts *opts;
const char *user = NULL;
const char *password = NULL;
const char *secretid;
char *secret = NULL;
- list = qemu_find_opts("iscsi");
- if (!list) {
- return;
- }
-
- opts = qemu_opts_find(list, target);
- if (opts == NULL) {
- opts = QTAILQ_FIRST(&list->head);
- if (!opts) {
- return;
- }
- }
-
user = qemu_opt_get(opts, "user");
if (!user) {
return;
g_free(secret);
}
-static void parse_header_digest(struct iscsi_context *iscsi, const char *target,
+static void apply_header_digest(struct iscsi_context *iscsi, QemuOpts *opts,
Error **errp)
{
- QemuOptsList *list;
- QemuOpts *opts;
const char *digest = NULL;
- list = qemu_find_opts("iscsi");
- if (!list) {
- return;
- }
-
- opts = qemu_opts_find(list, target);
- if (opts == NULL) {
- opts = QTAILQ_FIRST(&list->head);
- if (!opts) {
- return;
- }
- }
-
digest = qemu_opt_get(opts, "header-digest");
if (!digest) {
- return;
- }
-
- if (!strcmp(digest, "CRC32C")) {
+ iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
+ } else if (!strcmp(digest, "crc32c")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_CRC32C);
- } else if (!strcmp(digest, "NONE")) {
+ } else if (!strcmp(digest, "none")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE);
- } else if (!strcmp(digest, "CRC32C-NONE")) {
+ } else if (!strcmp(digest, "crc32c-none")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_CRC32C_NONE);
- } else if (!strcmp(digest, "NONE-CRC32C")) {
+ } else if (!strcmp(digest, "none-crc32c")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
} else {
error_setg(errp, "Invalid header-digest setting : %s", digest);
}
}
-static char *parse_initiator_name(const char *target)
+static char *get_initiator_name(QemuOpts *opts)
{
- QemuOptsList *list;
- QemuOpts *opts;
const char *name;
char *iscsi_name;
UuidInfo *uuid_info;
- list = qemu_find_opts("iscsi");
- if (list) {
- opts = qemu_opts_find(list, target);
- if (!opts) {
- opts = QTAILQ_FIRST(&list->head);
- }
- if (opts) {
- name = qemu_opt_get(opts, "initiator-name");
- if (name) {
- return g_strdup(name);
- }
- }
+ name = qemu_opt_get(opts, "initiator-name");
+ if (name) {
+ return g_strdup(name);
}
uuid_info = qmp_query_uuid(NULL);
return iscsi_name;
}
-static int parse_timeout(const char *target)
-{
- QemuOptsList *list;
- QemuOpts *opts;
- const char *timeout;
-
- list = qemu_find_opts("iscsi");
- if (list) {
- opts = qemu_opts_find(list, target);
- if (!opts) {
- opts = QTAILQ_FIRST(&list->head);
- }
- if (opts) {
- timeout = qemu_opt_get(opts, "timeout");
- if (timeout) {
- return atoi(timeout);
- }
- }
- }
-
- return 0;
-}
-
static void iscsi_nop_timed_event(void *opaque)
{
IscsiLun *iscsilun = opaque;
+ qemu_mutex_lock(&iscsilun->mutex);
if (iscsi_get_nops_in_flight(iscsilun->iscsi) >= MAX_NOP_FAILURES) {
error_report("iSCSI: NOP timeout. Reconnecting...");
iscsilun->request_timed_out = true;
} else if (iscsi_nop_out_async(iscsilun->iscsi, NULL, NULL, 0, NULL) != 0) {
error_report("iSCSI: failed to sent NOP-Out. Disabling NOP messages.");
- return;
+ goto out;
}
timer_mod(iscsilun->nop_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + NOP_INTERVAL);
iscsi_set_events(iscsilun);
+
+out:
+ qemu_mutex_unlock(&iscsilun->mutex);
}
static void iscsi_readcapacity_sync(IscsiLun *iscsilun, Error **errp)
}
}
-/* TODO Convert to fine grained options */
-static QemuOptsList runtime_opts = {
- .name = "iscsi",
- .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
- .desc = {
- {
- .name = "filename",
- .type = QEMU_OPT_STRING,
- .help = "URL to the iscsi image",
- },
- { /* end of list */ }
- },
-};
-
static struct scsi_task *iscsi_do_inquiry(struct iscsi_context *iscsi, int lun,
int evpd, int pc, void **inq, Error **errp)
{
IscsiLun *iscsilun = bs->opaque;
aio_set_fd_handler(iscsilun->aio_context, iscsi_get_fd(iscsilun->iscsi),
- false, NULL, NULL, NULL);
+ false, NULL, NULL, NULL, NULL);
iscsilun->events = 0;
if (iscsilun->nop_timer) {
}
}
+static void iscsi_parse_iscsi_option(const char *target, QDict *options)
+{
+ QemuOptsList *list;
+ QemuOpts *opts;
+ const char *user, *password, *password_secret, *initiator_name,
+ *header_digest, *timeout;
+
+ list = qemu_find_opts("iscsi");
+ if (!list) {
+ return;
+ }
+
+ opts = qemu_opts_find(list, target);
+ if (opts == NULL) {
+ opts = QTAILQ_FIRST(&list->head);
+ if (!opts) {
+ return;
+ }
+ }
+
+ user = qemu_opt_get(opts, "user");
+ if (user) {
+ qdict_set_default_str(options, "user", user);
+ }
+
+ password = qemu_opt_get(opts, "password");
+ if (password) {
+ qdict_set_default_str(options, "password", password);
+ }
+
+ password_secret = qemu_opt_get(opts, "password-secret");
+ if (password_secret) {
+ qdict_set_default_str(options, "password-secret", password_secret);
+ }
+
+ initiator_name = qemu_opt_get(opts, "initiator-name");
+ if (initiator_name) {
+ qdict_set_default_str(options, "initiator-name", initiator_name);
+ }
+
+ header_digest = qemu_opt_get(opts, "header-digest");
+ if (header_digest) {
+ /* -iscsi takes upper case values, but QAPI only supports lower case
+ * enum constant names, so we have to convert here. */
+ char *qapi_value = g_ascii_strdown(header_digest, -1);
+ qdict_set_default_str(options, "header-digest", qapi_value);
+ g_free(qapi_value);
+ }
+
+ timeout = qemu_opt_get(opts, "timeout");
+ if (timeout) {
+ qdict_set_default_str(options, "timeout", timeout);
+ }
+}
+
/*
* We support iscsi url's on the form
* iscsi://[<username>%<password>@]<host>[:<port>]/<targetname>/<lun>
*/
+static void iscsi_parse_filename(const char *filename, QDict *options,
+ Error **errp)
+{
+ struct iscsi_url *iscsi_url;
+ const char *transport_name;
+ char *lun_str;
+
+ iscsi_url = iscsi_parse_full_url(NULL, filename);
+ if (iscsi_url == NULL) {
+ error_setg(errp, "Failed to parse URL : %s", filename);
+ return;
+ }
+
+#if LIBISCSI_API_VERSION >= (20160603)
+ switch (iscsi_url->transport) {
+ case TCP_TRANSPORT:
+ transport_name = "tcp";
+ break;
+ case ISER_TRANSPORT:
+ transport_name = "iser";
+ break;
+ default:
+ error_setg(errp, "Unknown transport type (%d)",
+ iscsi_url->transport);
+ return;
+ }
+#else
+ transport_name = "tcp";
+#endif
+
+ qdict_set_default_str(options, "transport", transport_name);
+ qdict_set_default_str(options, "portal", iscsi_url->portal);
+ qdict_set_default_str(options, "target", iscsi_url->target);
+
+ lun_str = g_strdup_printf("%d", iscsi_url->lun);
+ qdict_set_default_str(options, "lun", lun_str);
+ g_free(lun_str);
+
+ /* User/password from -iscsi take precedence over those from the URL */
+ iscsi_parse_iscsi_option(iscsi_url->target, options);
+
+ if (iscsi_url->user[0] != '\0') {
+ qdict_set_default_str(options, "user", iscsi_url->user);
+ qdict_set_default_str(options, "password", iscsi_url->passwd);
+ }
+
+ iscsi_destroy_url(iscsi_url);
+}
+
+static QemuOptsList runtime_opts = {
+ .name = "iscsi",
+ .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
+ .desc = {
+ {
+ .name = "transport",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "portal",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "target",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "user",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "password",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "password-secret",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "lun",
+ .type = QEMU_OPT_NUMBER,
+ },
+ {
+ .name = "initiator-name",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "header-digest",
+ .type = QEMU_OPT_STRING,
+ },
+ {
+ .name = "timeout",
+ .type = QEMU_OPT_NUMBER,
+ },
+ { /* end of list */ }
+ },
+};
+
static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
IscsiLun *iscsilun = bs->opaque;
struct iscsi_context *iscsi = NULL;
- struct iscsi_url *iscsi_url = NULL;
struct scsi_task *task = NULL;
struct scsi_inquiry_standard *inq = NULL;
struct scsi_inquiry_supported_pages *inq_vpd;
char *initiator_name = NULL;
QemuOpts *opts;
Error *local_err = NULL;
- const char *filename;
- int i, ret = 0, timeout = 0;
+ const char *transport_name, *portal, *target;
+#if LIBISCSI_API_VERSION >= (20160603)
+ enum iscsi_transport_type transport;
+#endif
+ int i, ret = 0, timeout = 0, lun;
opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
qemu_opts_absorb_qdict(opts, options, &local_err);
goto out;
}
- filename = qemu_opt_get(opts, "filename");
+ transport_name = qemu_opt_get(opts, "transport");
+ portal = qemu_opt_get(opts, "portal");
+ target = qemu_opt_get(opts, "target");
+ lun = qemu_opt_get_number(opts, "lun", 0);
- iscsi_url = iscsi_parse_full_url(iscsi, filename);
- if (iscsi_url == NULL) {
- error_setg(errp, "Failed to parse URL : %s", filename);
+ if (!transport_name || !portal || !target) {
+ error_setg(errp, "Need all of transport, portal and target options");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!strcmp(transport_name, "tcp")) {
+#if LIBISCSI_API_VERSION >= (20160603)
+ transport = TCP_TRANSPORT;
+ } else if (!strcmp(transport_name, "iser")) {
+ transport = ISER_TRANSPORT;
+#else
+ /* TCP is what older libiscsi versions always use */
+#endif
+ } else {
+ error_setg(errp, "Unknown transport: %s", transport_name);
ret = -EINVAL;
goto out;
}
memset(iscsilun, 0, sizeof(IscsiLun));
- initiator_name = parse_initiator_name(iscsi_url->target);
+ initiator_name = get_initiator_name(opts);
iscsi = iscsi_create_context(initiator_name);
if (iscsi == NULL) {
ret = -ENOMEM;
goto out;
}
-
- if (iscsi_set_targetname(iscsi, iscsi_url->target)) {
- error_setg(errp, "iSCSI: Failed to set target name.");
+#if LIBISCSI_API_VERSION >= (20160603)
+ if (iscsi_init_transport(iscsi, transport)) {
+ error_setg(errp, ("Error initializing transport."));
ret = -EINVAL;
goto out;
}
-
- if (iscsi_url->user[0] != '\0') {
- ret = iscsi_set_initiator_username_pwd(iscsi, iscsi_url->user,
- iscsi_url->passwd);
- if (ret != 0) {
- error_setg(errp, "Failed to set initiator username and password");
- ret = -EINVAL;
- goto out;
- }
+#endif
+ if (iscsi_set_targetname(iscsi, target)) {
+ error_setg(errp, "iSCSI: Failed to set target name.");
+ ret = -EINVAL;
+ goto out;
}
/* check if we got CHAP username/password via the options */
- parse_chap(iscsi, iscsi_url->target, &local_err);
+ apply_chap(iscsi, opts, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
ret = -EINVAL;
goto out;
}
- iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
-
/* check if we got HEADER_DIGEST via the options */
- parse_header_digest(iscsi, iscsi_url->target, &local_err);
+ apply_header_digest(iscsi, opts, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
ret = -EINVAL;
}
/* timeout handling is broken in libiscsi before 1.15.0 */
- timeout = parse_timeout(iscsi_url->target);
-#if defined(LIBISCSI_API_VERSION) && LIBISCSI_API_VERSION >= 20150621
+ timeout = qemu_opt_get_number(opts, "timeout", 0);
+#if LIBISCSI_API_VERSION >= 20150621
iscsi_set_timeout(iscsi, timeout);
#else
if (timeout) {
}
#endif
- if (iscsi_full_connect_sync(iscsi, iscsi_url->portal, iscsi_url->lun) != 0) {
+ if (iscsi_full_connect_sync(iscsi, portal, lun) != 0) {
error_setg(errp, "iSCSI: Failed to connect to LUN : %s",
iscsi_get_error(iscsi));
ret = -EINVAL;
iscsilun->iscsi = iscsi;
iscsilun->aio_context = bdrv_get_aio_context(bs);
- iscsilun->lun = iscsi_url->lun;
+ iscsilun->lun = lun;
iscsilun->has_write_same = true;
task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 0, 0,
scsi_free_scsi_task(task);
task = NULL;
+ qemu_mutex_init(&iscsilun->mutex);
iscsi_attach_aio_context(bs, iscsilun->aio_context);
/* Guess the internal cluster (page) size of the iscsi target by the means
out:
qemu_opts_del(opts);
g_free(initiator_name);
- if (iscsi_url != NULL) {
- iscsi_destroy_url(iscsi_url);
- }
if (task != NULL) {
scsi_free_scsi_task(task);
}
iscsi_destroy_context(iscsi);
g_free(iscsilun->zeroblock);
iscsi_allocmap_free(iscsilun);
+ qemu_mutex_destroy(&iscsilun->mutex);
memset(iscsilun, 0, sizeof(IscsiLun));
}
.format_name = "iscsi",
.protocol_name = "iscsi",
- .instance_size = sizeof(IscsiLun),
- .bdrv_needs_filename = true,
- .bdrv_file_open = iscsi_open,
- .bdrv_close = iscsi_close,
- .bdrv_create = iscsi_create,
- .create_opts = &iscsi_create_opts,
- .bdrv_reopen_prepare = iscsi_reopen_prepare,
- .bdrv_reopen_commit = iscsi_reopen_commit,
- .bdrv_invalidate_cache = iscsi_invalidate_cache,
+ .instance_size = sizeof(IscsiLun),
+ .bdrv_parse_filename = iscsi_parse_filename,
+ .bdrv_file_open = iscsi_open,
+ .bdrv_close = iscsi_close,
+ .bdrv_create = iscsi_create,
+ .create_opts = &iscsi_create_opts,
+ .bdrv_reopen_prepare = iscsi_reopen_prepare,
+ .bdrv_reopen_commit = iscsi_reopen_commit,
+ .bdrv_invalidate_cache = iscsi_invalidate_cache,
.bdrv_getlength = iscsi_getlength,
.bdrv_get_info = iscsi_get_info,
.bdrv_attach_aio_context = iscsi_attach_aio_context,
};
+#if LIBISCSI_API_VERSION >= (20160603)
+static BlockDriver bdrv_iser = {
+ .format_name = "iser",
+ .protocol_name = "iser",
+
+ .instance_size = sizeof(IscsiLun),
+ .bdrv_parse_filename = iscsi_parse_filename,
+ .bdrv_file_open = iscsi_open,
+ .bdrv_close = iscsi_close,
+ .bdrv_create = iscsi_create,
+ .create_opts = &iscsi_create_opts,
+ .bdrv_reopen_prepare = iscsi_reopen_prepare,
+ .bdrv_reopen_commit = iscsi_reopen_commit,
+ .bdrv_invalidate_cache = iscsi_invalidate_cache,
+
+ .bdrv_getlength = iscsi_getlength,
+ .bdrv_get_info = iscsi_get_info,
+ .bdrv_truncate = iscsi_truncate,
+ .bdrv_refresh_limits = iscsi_refresh_limits,
+
+ .bdrv_co_get_block_status = iscsi_co_get_block_status,
+ .bdrv_co_pdiscard = iscsi_co_pdiscard,
+ .bdrv_co_pwrite_zeroes = iscsi_co_pwrite_zeroes,
+ .bdrv_co_readv = iscsi_co_readv,
+ .bdrv_co_writev_flags = iscsi_co_writev_flags,
+ .bdrv_co_flush_to_disk = iscsi_co_flush,
+
+#ifdef __linux__
+ .bdrv_aio_ioctl = iscsi_aio_ioctl,
+#endif
+
+ .bdrv_detach_aio_context = iscsi_detach_aio_context,
+ .bdrv_attach_aio_context = iscsi_attach_aio_context,
+};
+#endif
+
static void iscsi_block_init(void)
{
bdrv_register(&bdrv_iscsi);
+#if LIBISCSI_API_VERSION >= (20160603)
+ bdrv_register(&bdrv_iser);
+#endif
}
block_init(iscsi_block_init);
projects / qemu.git / blobdiff