0216e537f7
Separate out the RDMA connection from the NVMf connection. For now, the RDMA connection is just embedded in the NVMf connection, but eventually they will have different lifetimes. Change-Id: I9407d94891e22090bff90b8415d88a4ac8c3e95e Signed-off-by: Ben Walker <benjamin.walker@intel.com>
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef NVMF_CONN_H
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#define NVMF_CONN_H
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#include <stdint.h>
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#include "spdk/event.h"
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#include "nvmf_internal.h"
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#include "rdma.h"
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#include "spdk/queue.h"
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/* RDMA transport connection states */
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enum conn_state {
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CONN_STATE_INVALID = 0,
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CONN_STATE_RUNNING = 1,
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CONN_STATE_FABRIC_DISCONNECT = 2,
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CONN_STATE_OVERFLOW = 3,
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CONN_STATE_EXITING = 4,
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};
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enum conn_type {
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CONN_TYPE_AQ = 0,
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CONN_TYPE_IOQ = 1,
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};
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struct spdk_nvmf_conn {
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uint32_t is_valid;
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struct nvmf_session *sess;
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/*
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* values saved from fabric connect and private data
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*/
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uint8_t responder_resources;
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uint8_t initiator_depth;
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uint16_t sq_depth;
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uint16_t cq_depth;
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uint16_t qid;
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uint16_t cntlid;
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enum conn_type type;
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volatile enum conn_state state;
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uint16_t sq_head;
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uint16_t sq_tail;
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struct spdk_nvmf_rdma_conn rdma;
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uint8_t pending_rdma_read_count;
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STAILQ_HEAD(qp_pending_desc, nvme_qp_tx_desc) qp_pending_desc;
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STAILQ_HEAD(qp_rx_desc, nvme_qp_rx_desc) qp_rx_desc;
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STAILQ_HEAD(qp_tx_desc, nvme_qp_tx_desc) qp_tx_desc;
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STAILQ_HEAD(qp_tx_active_desc, nvme_qp_tx_desc) qp_tx_active_desc;
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TAILQ_ENTRY(spdk_nvmf_conn) link;
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struct spdk_poller poller;
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};
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int spdk_initialize_nvmf_conns(int max_connections);
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void spdk_shutdown_nvmf_conns(void);
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struct spdk_nvmf_conn *
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spdk_nvmf_allocate_conn(void);
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void
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nvmf_init_conn_properites(struct spdk_nvmf_conn *conn,
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struct nvmf_session *session,
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struct spdk_nvmf_fabric_connect_rsp *response);
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int spdk_nvmf_startup_conn(struct spdk_nvmf_conn *conn);
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void
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nvmf_deactive_tx_desc(struct nvme_qp_tx_desc *tx_desc);
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#endif /* NVMF_CONN_H */
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