89031c3e27
It is not currently configurable, but this will allow us to make the discovery subsystem have config options (e.g. which lcore to run on). Change-Id: I788a64ba4462b023453191e509ce8de59fd90ae4 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
120 lines
3.7 KiB
C
120 lines
3.7 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 SPDK_NVMF_SUBSYSTEM_H
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#define SPDK_NVMF_SUBSYSTEM_H
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#include "nvmf_internal.h"
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#include "spdk/event.h"
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#include "spdk/nvme.h"
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#include "spdk/queue.h"
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struct spdk_nvmf_conn;
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#define MAX_NQN_SIZE 255
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enum spdk_nvmf_subsystem_mode {
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NVMF_SUBSYSTEM_MODE_DIRECT = 0,
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NVMF_SUBSYSTEM_MODE_VIRTUAL = 1,
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};
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struct spdk_nvmf_listen_addr {
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char *traddr;
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char *trsvc; /* TODO: Change to trsvcid */
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const struct spdk_nvmf_transport *transport;
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TAILQ_ENTRY(spdk_nvmf_listen_addr) link;
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};
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struct spdk_nvmf_host {
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char *nqn;
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TAILQ_ENTRY(spdk_nvmf_host) link;
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};
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/*
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* The NVMf subsystem, as indicated in the specification, is a collection
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* of virtual controller sessions. Any individual controller session has
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* access to all the NVMe device/namespaces maintained by the subsystem.
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*/
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struct spdk_nvmf_subsystem {
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uint16_t num;
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char subnqn[MAX_NQN_SIZE];
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enum spdk_nvmf_subsystem_mode mode;
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enum spdk_nvmf_subtype subtype;
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struct nvmf_session *session;
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struct spdk_nvme_ctrlr *ctrlr;
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struct spdk_nvme_qpair *io_qpair;
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struct spdk_poller poller;
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TAILQ_HEAD(, spdk_nvmf_listen_addr) listen_addrs;
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uint32_t num_listen_addrs;
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TAILQ_HEAD(, spdk_nvmf_host) hosts;
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uint32_t num_hosts;
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TAILQ_ENTRY(spdk_nvmf_subsystem) entries;
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};
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struct spdk_nvmf_subsystem *
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nvmf_create_subsystem(int num, const char *name,
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enum spdk_nvmf_subtype subtype,
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uint32_t lcore);
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int
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nvmf_delete_subsystem(struct spdk_nvmf_subsystem *subsystem);
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struct spdk_nvmf_subsystem *
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nvmf_find_subsystem(const char *subnqn, const char *hostnqn);
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int
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spdk_nvmf_subsystem_add_listener(struct spdk_nvmf_subsystem *subsystem,
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const struct spdk_nvmf_transport *transport,
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char *traddr, char *trsvc);
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int
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spdk_nvmf_subsystem_add_host(struct spdk_nvmf_subsystem *subsystem,
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char *host_nqn);
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int
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nvmf_subsystem_add_ctrlr(struct spdk_nvmf_subsystem *subsystem,
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struct spdk_nvme_ctrlr *ctrlr);
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int
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spdk_shutdown_nvmf_subsystems(void);
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void
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spdk_format_discovery_log(struct spdk_nvmf_discovery_log_page *disc_log, uint32_t length);
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#endif /* SPDK_NVMF_SUBSYSTEM_H */
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