C++ (Cpp) send_data_in Examples

Example #1

File: rxe_resp.c Project: TheDarkCode/linux

/* Executes a new request. A retried request never reach that function (send
 * and writes are discarded, and reads and atomics are retried elsewhere.
 */
static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt)
{
	enum resp_states err;

	if (pkt->mask & RXE_SEND_MASK) {
		if (qp_type(qp) == IB_QPT_UD ||
		    qp_type(qp) == IB_QPT_SMI ||
		    qp_type(qp) == IB_QPT_GSI) {
			union rdma_network_hdr hdr;
			struct sk_buff *skb = PKT_TO_SKB(pkt);

			memset(&hdr, 0, sizeof(hdr));
			if (skb->protocol == htons(ETH_P_IP))
				memcpy(&hdr.roce4grh, ip_hdr(skb), sizeof(hdr.roce4grh));
			else if (skb->protocol == htons(ETH_P_IPV6))
				memcpy(&hdr.ibgrh, ipv6_hdr(skb), sizeof(hdr.ibgrh));

			err = send_data_in(qp, &hdr, sizeof(hdr));
			if (err)
				return err;
		}
		err = send_data_in(qp, payload_addr(pkt), payload_size(pkt));
		if (err)
			return err;
	} else if (pkt->mask & RXE_WRITE_MASK) {
		err = write_data_in(qp, pkt);
		if (err)
			return err;
	} else if (pkt->mask & RXE_READ_MASK) {
		/* For RDMA Read we can increment the msn now. See C9-148. */
		qp->resp.msn++;
		return RESPST_READ_REPLY;
	} else if (pkt->mask & RXE_ATOMIC_MASK) {
		err = process_atomic(qp, pkt);
		if (err)
			return err;
	} else
		/* Unreachable */
		WARN_ON(1);

	/* We successfully processed this new request. */
	qp->resp.msn++;

	/* next expected psn, read handles this separately */
	qp->resp.psn = (pkt->psn + 1) & BTH_PSN_MASK;

	qp->resp.opcode = pkt->opcode;
	qp->resp.status = IB_WC_SUCCESS;

	if (pkt->mask & RXE_COMP_MASK)
		return RESPST_COMPLETE;
	else if (qp_type(qp) == IB_QPT_RC)
		return RESPST_ACKNOWLEDGE;
	else
		return RESPST_CLEANUP;
}

Example #2

File: rxe_resp.c Project: Anjali05/linux

/* Executes a new request. A retried request never reach that function (send
 * and writes are discarded, and reads and atomics are retried elsewhere.
 */
static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt)
{
	enum resp_states err;

	if (pkt->mask & RXE_SEND_MASK) {
		if (qp_type(qp) == IB_QPT_UD ||
		    qp_type(qp) == IB_QPT_SMI ||
		    qp_type(qp) == IB_QPT_GSI) {
			union rdma_network_hdr hdr;

			build_rdma_network_hdr(&hdr, pkt);

			err = send_data_in(qp, &hdr, sizeof(hdr));
			if (err)
				return err;
		}
		err = send_data_in(qp, payload_addr(pkt), payload_size(pkt));
		if (err)
			return err;
	} else if (pkt->mask & RXE_WRITE_MASK) {
		err = write_data_in(qp, pkt);
		if (err)
			return err;
	} else if (pkt->mask & RXE_READ_MASK) {
		/* For RDMA Read we can increment the msn now. See C9-148. */
		qp->resp.msn++;
		return RESPST_READ_REPLY;
	} else if (pkt->mask & RXE_ATOMIC_MASK) {
		err = process_atomic(qp, pkt);
		if (err)
			return err;
	} else {
		/* Unreachable */
		WARN_ON_ONCE(1);
	}

	/* next expected psn, read handles this separately */
	qp->resp.psn = (pkt->psn + 1) & BTH_PSN_MASK;
	qp->resp.ack_psn = qp->resp.psn;

	qp->resp.opcode = pkt->opcode;
	qp->resp.status = IB_WC_SUCCESS;

	if (pkt->mask & RXE_COMP_MASK) {
		/* We successfully processed this new request. */
		qp->resp.msn++;
		return RESPST_COMPLETE;
	} else if (qp_type(qp) == IB_QPT_RC)
		return RESPST_ACKNOWLEDGE;
	else
		return RESPST_CLEANUP;
}