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-rw-r--r--block/iscsi.c133
1 files changed, 71 insertions, 62 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index 41ec09709d..0a15f53f8c 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -145,12 +145,13 @@ iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
if (iTask->retries-- > 0 && status == SCSI_STATUS_CHECK_CONDITION
&& task->sense.key == SCSI_SENSE_UNIT_ATTENTION) {
+ error_report("iSCSI CheckCondition: %s", iscsi_get_error(iscsi));
iTask->do_retry = 1;
goto out;
}
if (status != SCSI_STATUS_GOOD) {
- error_report("iSCSI: Failure. %s", iscsi_get_error(iscsi));
+ error_report("iSCSI Failure: %s", iscsi_get_error(iscsi));
}
out:
@@ -325,6 +326,7 @@ retry:
}
if (iTask.do_retry) {
+ iTask.complete = 0;
goto retry;
}
@@ -399,6 +401,7 @@ retry:
}
if (iTask.do_retry) {
+ iTask.complete = 0;
goto retry;
}
@@ -433,6 +436,7 @@ retry:
}
if (iTask.do_retry) {
+ iTask.complete = 0;
goto retry;
}
@@ -683,6 +687,7 @@ retry:
scsi_free_scsi_task(iTask.task);
iTask.task = NULL;
}
+ iTask.complete = 0;
goto retry;
}
@@ -767,6 +772,7 @@ retry:
}
if (iTask.do_retry) {
+ iTask.complete = 0;
goto retry;
}
@@ -830,24 +836,26 @@ retry:
qemu_coroutine_yield();
}
+ if (iTask.status == SCSI_STATUS_CHECK_CONDITION &&
+ iTask.task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST &&
+ iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE) {
+ /* WRITE SAME is not supported by the target */
+ iscsilun->has_write_same = false;
+ scsi_free_scsi_task(iTask.task);
+ return -ENOTSUP;
+ }
+
if (iTask.task != NULL) {
scsi_free_scsi_task(iTask.task);
iTask.task = NULL;
}
if (iTask.do_retry) {
+ iTask.complete = 0;
goto retry;
}
if (iTask.status != SCSI_STATUS_GOOD) {
- if (iTask.status == SCSI_STATUS_CHECK_CONDITION &&
- iTask.task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST &&
- iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE) {
- /* WRITE SAME is not supported by the target */
- iscsilun->has_write_same = false;
- return -ENOTSUP;
- }
-
return -EIO;
}
@@ -1060,7 +1068,7 @@ static QemuOptsList runtime_opts = {
};
static struct scsi_task *iscsi_do_inquiry(struct iscsi_context *iscsi, int lun,
- int evpd, int pc, Error **errp)
+ int evpd, int pc, void **inq, Error **errp)
{
int full_size;
struct scsi_task *task = NULL;
@@ -1079,14 +1087,19 @@ static struct scsi_task *iscsi_do_inquiry(struct iscsi_context *iscsi, int lun,
}
}
+ *inq = scsi_datain_unmarshall(task);
+ if (*inq == NULL) {
+ error_setg(errp, "iSCSI: failed to unmarshall inquiry datain blob");
+ goto fail;
+ }
+
return task;
fail:
error_setg(errp, "iSCSI: Inquiry command failed : %s",
iscsi_get_error(iscsi));
- if (task) {
+ if (task != NULL) {
scsi_free_scsi_task(task);
- return NULL;
}
return NULL;
}
@@ -1107,11 +1120,12 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
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 ret;
+ int i, ret;
if ((BDRV_SECTOR_SIZE % 512) != 0) {
error_setg(errp, "iSCSI: Invalid BDRV_SECTOR_SIZE. "
@@ -1197,24 +1211,17 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
iscsilun->iscsi = iscsi;
iscsilun->lun = iscsi_url->lun;
+ iscsilun->has_write_same = true;
- task = iscsi_inquiry_sync(iscsi, iscsilun->lun, 0, 0, 36);
-
- if (task == NULL || task->status != SCSI_STATUS_GOOD) {
- error_setg(errp, "iSCSI: failed to send inquiry command.");
- ret = -EINVAL;
- goto out;
- }
-
- inq = scsi_datain_unmarshall(task);
- if (inq == NULL) {
- error_setg(errp, "iSCSI: Failed to unmarshall inquiry data.");
+ task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 0, 0,
+ (void **) &inq, errp);
+ if (task == NULL) {
ret = -EINVAL;
goto out;
}
-
iscsilun->type = inq->periperal_device_type;
- iscsilun->has_write_same = true;
+ scsi_free_scsi_task(task);
+ task = NULL;
iscsi_readcapacity_sync(iscsilun, &local_err);
if (local_err != NULL) {
@@ -1233,46 +1240,48 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
bs->sg = 1;
}
- if (iscsilun->lbpme) {
- struct scsi_inquiry_logical_block_provisioning *inq_lbp;
- task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1,
- SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING,
- errp);
- if (task == NULL) {
- ret = -EINVAL;
- goto out;
- }
- inq_lbp = scsi_datain_unmarshall(task);
- if (inq_lbp == NULL) {
- error_setg(errp, "iSCSI: failed to unmarshall inquiry datain blob");
- ret = -EINVAL;
- goto out;
- }
- memcpy(&iscsilun->lbp, inq_lbp,
- sizeof(struct scsi_inquiry_logical_block_provisioning));
- scsi_free_scsi_task(task);
- task = NULL;
+ task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1,
+ SCSI_INQUIRY_PAGECODE_SUPPORTED_VPD_PAGES,
+ (void **) &inq_vpd, errp);
+ if (task == NULL) {
+ ret = -EINVAL;
+ goto out;
}
-
- if (iscsilun->lbp.lbpu || iscsilun->lbp.lbpws) {
+ for (i = 0; i < inq_vpd->num_pages; i++) {
+ struct scsi_task *inq_task;
+ struct scsi_inquiry_logical_block_provisioning *inq_lbp;
struct scsi_inquiry_block_limits *inq_bl;
- task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1,
- SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS, errp);
- if (task == NULL) {
- ret = -EINVAL;
- goto out;
- }
- inq_bl = scsi_datain_unmarshall(task);
- if (inq_bl == NULL) {
- error_setg(errp, "iSCSI: failed to unmarshall inquiry datain blob");
- ret = -EINVAL;
- goto out;
+ switch (inq_vpd->pages[i]) {
+ case SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING:
+ inq_task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1,
+ SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING,
+ (void **) &inq_lbp, errp);
+ if (inq_task == NULL) {
+ ret = -EINVAL;
+ goto out;
+ }
+ memcpy(&iscsilun->lbp, inq_lbp,
+ sizeof(struct scsi_inquiry_logical_block_provisioning));
+ scsi_free_scsi_task(inq_task);
+ break;
+ case SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS:
+ inq_task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1,
+ SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS,
+ (void **) &inq_bl, errp);
+ if (inq_task == NULL) {
+ ret = -EINVAL;
+ goto out;
+ }
+ memcpy(&iscsilun->bl, inq_bl,
+ sizeof(struct scsi_inquiry_block_limits));
+ scsi_free_scsi_task(inq_task);
+ break;
+ default:
+ break;
}
- memcpy(&iscsilun->bl, inq_bl,
- sizeof(struct scsi_inquiry_block_limits));
- scsi_free_scsi_task(task);
- task = NULL;
}
+ scsi_free_scsi_task(task);
+ task = NULL;
#if defined(LIBISCSI_FEATURE_NOP_COUNTER)
/* Set up a timer for sending out iSCSI NOPs */