iscsi_readcapacity10_cb(struct iscsi_context *iscsi, int status, void *command_data, void *opaque) { struct IscsiTask *itask = opaque; struct scsi_readcapacity10 *rc10; struct scsi_task *task = command_data; if (status != 0) { error_report("iSCSI: Failed to read capacity of iSCSI lun. %s", iscsi_get_error(iscsi)); itask->status = 1; itask->complete = 1; scsi_free_scsi_task(task); return; } rc10 = scsi_datain_unmarshall(task); if (rc10 == NULL) { error_report("iSCSI: Failed to unmarshall readcapacity10 data."); itask->status = 1; itask->complete = 1; scsi_free_scsi_task(task); return; } itask->iscsilun->block_size = rc10->block_size; if (rc10->lba == 0) { /* blank disk loaded */ itask->iscsilun->num_blocks = 0; } else { itask->iscsilun->num_blocks = rc10->lba + 1; } itask->bs->total_sectors = itask->iscsilun->num_blocks * itask->iscsilun->block_size / BDRV_SECTOR_SIZE ; itask->status = 0; itask->complete = 1; scsi_free_scsi_task(task); }