static void efa_send_wr_set_sge_list()

in efawin/verbs.c [1646:1683]

• 35 lines of code
• 6 McCabe index (conditional complexity)

static void efa_send_wr_set_sge_list(struct ibv_qp_ex *ibvqpx, size_t num_sge,
				     const struct ibv_sge *sg_list)
{
	struct efa_qp *qp = to_efa_qp_ex(ibvqpx);
	struct efa_io_rdma_req *rdma_req;
	struct efa_io_tx_wqe *tx_wqe;
	struct efa_sq *sq = &qp->sq;
	uint8_t op_type;

	if (unlikely(qp->wr_session_err))
		return;

	tx_wqe = sq->curr_tx_wqe;
	op_type = EFA_GET(&tx_wqe->meta.ctrl1, EFA_IO_TX_META_DESC_OP_TYPE);
	switch (op_type) {
	case EFA_IO_SEND:
		if (unlikely(num_sge > sq->wq.max_sge)) {
			qp->wr_session_err = EINVAL;
			return;
		}
		efa_post_send_sgl(tx_wqe->data.sgl, sg_list, num_sge);
		break;
	case EFA_IO_RDMA_READ:
		if (unlikely(num_sge > sq->max_wr_rdma_sge)) {
			qp->wr_session_err = EINVAL;
			return;
		}
		rdma_req = &tx_wqe->data.rdma_req;
		rdma_req->remote_mem.length = efa_sge_total_bytes(sg_list,
								  num_sge);
		efa_post_send_sgl(rdma_req->local_mem, sg_list, num_sge);
		break;
	default:
		return;
	}

	tx_wqe->meta.length = num_sge;
}