c917957bff
The nvmf_request structure holds the pair of pointers for rx_desc and tx_desc. Change-Id: I3e735979bbdcdc0e70ad78762e289849d41158ba Signed-off-by: Ben Walker <benjamin.walker@intel.com>
81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _NVMF_RDMA_H_
|
|
#define _NVMF_RDMA_H_
|
|
|
|
#include <infiniband/verbs.h>
|
|
|
|
#include "nvmf_internal.h"
|
|
#include "spdk/nvmf_spec.h"
|
|
|
|
/* Define the Admin Queue Rx/Tx Descriptors */
|
|
|
|
struct nvme_qp_rx_desc {
|
|
union nvmf_h2c_msg msg_buf;
|
|
struct spdk_nvmf_conn *conn;
|
|
struct ibv_mr *msg_buf_mr;
|
|
struct ibv_sge recv_sgl;
|
|
struct ibv_sge bb_sgl; /* must follow recv_sgl */
|
|
struct ibv_mr *bb_mr;
|
|
uint8_t *bb;
|
|
uint32_t bb_len;
|
|
uint32_t recv_bc;
|
|
STAILQ_ENTRY(nvme_qp_rx_desc) link;
|
|
};
|
|
|
|
struct nvme_qp_tx_desc {
|
|
union nvmf_c2h_msg msg_buf;
|
|
struct spdk_nvmf_conn *conn;
|
|
struct nvmf_request req_state;
|
|
struct ibv_mr *msg_buf_mr;
|
|
struct ibv_sge send_sgl;
|
|
STAILQ_ENTRY(nvme_qp_tx_desc) link;
|
|
};
|
|
|
|
int nvmf_post_rdma_read(struct spdk_nvmf_conn *conn,
|
|
struct nvme_qp_tx_desc *tx_desc);
|
|
int nvmf_post_rdma_write(struct spdk_nvmf_conn *conn,
|
|
struct nvme_qp_tx_desc *tx_desc);
|
|
int nvmf_post_rdma_recv(struct spdk_nvmf_conn *conn,
|
|
struct nvme_qp_rx_desc *rx_desc);
|
|
int nvmf_post_rdma_send(struct spdk_nvmf_conn *conn,
|
|
struct nvme_qp_tx_desc *tx_desc);
|
|
int nvmf_rdma_init(void);
|
|
void nvmf_rdma_conn_cleanup(struct spdk_nvmf_conn *conn);
|
|
|
|
int nvmf_acceptor_start(void);
|
|
void nvmf_acceptor_stop(void);
|
|
|
|
#endif /* _NVMF_RDMA_H_ */
|