64f6abea9c
There was an extra layer of indirection complicating things for no reason. This removes it. Change-Id: I8d4e654eb17f8f6ec028d775329794f0745fb0f7 Signed-off-by: Ben Walker <benjamin.walker@intel.com>
107 lines
3.6 KiB
C
107 lines
3.6 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_SESSION_H
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#define NVMF_SESSION_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "conn.h"
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#include "request.h"
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#include "spdk/nvmf_spec.h"
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#include "spdk/queue.h"
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/* define a virtual controller limit to the number of QPs supported */
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#define MAX_SESSION_IO_QUEUES 64
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/*
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* This structure maintains the NVMf virtual controller session
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* state. Each NVMf session permits some number of connections.
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* At least one admin connection and additional IOQ connections.
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*/
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struct nvmf_session {
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struct spdk_nvmf_subsystem *subsys;
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uint16_t cntlid;
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uint32_t max_io_queues; /* maximum supported by backend NVMe library */
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int active_queues;
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int is_valid;
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struct {
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union spdk_nvme_cap_register cap;
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union spdk_nvme_vs_register vs;
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union spdk_nvme_cc_register cc;
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union spdk_nvme_csts_register csts;
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} vcprop; /* virtual controller properties */
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struct spdk_nvme_ctrlr_data vcdata; /* virtual controller data */
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TAILQ_HEAD(connection_q, spdk_nvmf_conn) connections;
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int num_connections;
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int max_connections_allowed;
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struct spdk_nvmf_request *aer_req;
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TAILQ_ENTRY(nvmf_session) entries;
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};
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struct nvmf_session *
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nvmf_connect(struct spdk_nvmf_conn *conn,
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struct spdk_nvmf_fabric_connect_cmd *connect,
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struct spdk_nvmf_fabric_connect_data *connect_data,
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struct spdk_nvmf_fabric_connect_rsp *response);
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void
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nvmf_disconnect(struct nvmf_session *session, struct spdk_nvmf_conn *conn);
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void
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nvmf_init_session_properties(struct nvmf_session *session, int aq_depth);
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void
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nvmf_property_get(struct nvmf_session *session,
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struct spdk_nvmf_fabric_prop_get_cmd *cmd,
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struct spdk_nvmf_fabric_prop_get_rsp *response);
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void
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nvmf_property_set(struct nvmf_session *session,
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struct spdk_nvmf_fabric_prop_set_cmd *cmd,
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struct spdk_nvmf_fabric_prop_set_rsp *response,
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bool *shutdown);
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void
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nvmf_check_io_completions(struct nvmf_session *session);
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void
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nvmf_check_admin_completions(struct nvmf_session *session);
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#endif
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