static void iscsi_aio_read16_cb(struct iscsi_context *iscsi, int status, void *command_data, void *opaque) { IscsiAIOCB *acb = opaque; trace_iscsi_aio_read16_cb(iscsi, status, acb, acb->canceled); if (acb->canceled != 0) { return; } acb->status = 0; if (status != 0) { if (status == SCSI_STATUS_CHECK_CONDITION && acb->task->sense.key == SCSI_SENSE_UNIT_ATTENTION && acb->retries-- > 0) { scsi_free_scsi_task(acb->task); acb->task = NULL; if (iscsi_aio_readv_acb(acb) == 0) { iscsi_set_events(acb->iscsilun); return; } } error_report("Failed to read16 data from iSCSI lun. %s", iscsi_get_error(iscsi)); acb->status = -EIO; } iscsi_schedule_bh(acb); }
static BlockDriverAIOCB * iscsi_aio_readv(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockDriverCompletionFunc *cb, void *opaque) { IscsiLun *iscsilun = bs->opaque; IscsiAIOCB *acb; if (!is_request_lun_aligned(sector_num, nb_sectors, iscsilun)) { return NULL; } acb = qemu_aio_get(&iscsi_aiocb_info, bs, cb, opaque); trace_iscsi_aio_readv(iscsilun->iscsi, sector_num, nb_sectors, opaque, acb); acb->nb_sectors = nb_sectors; acb->sector_num = sector_num; acb->iscsilun = iscsilun; acb->qiov = qiov; acb->retries = ISCSI_CMD_RETRIES; if (iscsi_aio_readv_acb(acb) != 0) { qemu_aio_release(acb); return NULL; } iscsi_set_events(iscsilun); return &acb->common; }
static BlockDriverAIOCB * iscsi_aio_readv(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockDriverCompletionFunc *cb, void *opaque) { IscsiLun *iscsilun = bs->opaque; IscsiAIOCB *acb; acb = qemu_aio_get(&iscsi_aiocb_info, bs, cb, opaque); trace_iscsi_aio_readv(iscsilun->iscsi, sector_num, nb_sectors, opaque, acb); acb->nb_sectors = nb_sectors; acb->sector_num = sector_num; acb->iscsilun = iscsilun; acb->qiov = qiov; acb->read_size = BDRV_SECTOR_SIZE * (size_t)acb->nb_sectors; acb->retries = ISCSI_CMD_RETRIES; if (iscsi_aio_readv_acb(acb) != 0) { if (acb->task) { scsi_free_scsi_task(acb->task); } qemu_aio_release(acb); return NULL; } iscsi_set_events(iscsilun); return &acb->common; }