20b3efdf0c
The bb_sgl must follow recv_sgl make the logic obscure. Change-Id: I8d47477986efd8f2d4ed964ab9373b7f157af274 Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
92 lines
3.1 KiB
C
92 lines
3.1 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 "request.h"
|
|
#include "spdk/nvmf_spec.h"
|
|
#include "spdk/queue.h"
|
|
|
|
struct spdk_nvmf_rdma_conn {
|
|
struct rdma_cm_id *cm_id;
|
|
struct ibv_context *ctx;
|
|
struct ibv_comp_channel *comp_channel;
|
|
struct ibv_cq *cq;
|
|
struct ibv_qp *qp;
|
|
|
|
uint16_t queue_depth;
|
|
|
|
STAILQ_HEAD(, spdk_nvmf_rdma_request) rdma_reqs;
|
|
};
|
|
|
|
struct spdk_nvmf_rdma_request {
|
|
struct spdk_nvmf_request req;
|
|
STAILQ_ENTRY(spdk_nvmf_rdma_request) link;
|
|
|
|
union nvmf_h2c_msg cmd;
|
|
struct ibv_mr *cmd_mr;
|
|
|
|
union nvmf_c2h_msg rsp;
|
|
struct ibv_mr *rsp_mr;
|
|
|
|
struct ibv_sge send_sgl;
|
|
struct ibv_sge recv_sgl[2];
|
|
|
|
struct ibv_mr *bb_mr;
|
|
uint8_t *bb;
|
|
uint32_t bb_len;
|
|
};
|
|
|
|
int nvmf_post_rdma_read(struct spdk_nvmf_conn *conn,
|
|
struct spdk_nvmf_request *req);
|
|
int spdk_nvmf_rdma_request_complete(struct spdk_nvmf_conn *conn,
|
|
struct spdk_nvmf_request *req);
|
|
int spdk_nvmf_rdma_request_release(struct spdk_nvmf_conn *conn,
|
|
struct spdk_nvmf_request *req);
|
|
int nvmf_rdma_init(void);
|
|
int spdk_nvmf_rdma_alloc_reqs(struct spdk_nvmf_conn *conn);
|
|
void spdk_nvmf_rdma_free_reqs(struct spdk_nvmf_conn *conn);
|
|
void spdk_nvmf_rdma_free_req(struct spdk_nvmf_request *req);
|
|
void nvmf_rdma_conn_cleanup(struct spdk_nvmf_conn *conn);
|
|
|
|
int nvmf_acceptor_start(void);
|
|
void nvmf_acceptor_stop(void);
|
|
|
|
int nvmf_check_rdma_completions(struct spdk_nvmf_conn *conn);
|
|
|
|
#endif /* _NVMF_RDMA_H_ */
|