2848c8d1d3
Starting the subsystem consists of firing an event to the subsystem poller's lcore and performing I/O channel initialization (for virtual NVMe subsystems) before starting the poller. Previously the subsystem would be started immediately when created, which was before the subsystem's mode and other parameters (such as a virtual subsystem's bdevs) have been set. This resulted in no I/O channels being allocated in virtual subsystem mode. So break out the start code into a new nvmf_tgt_start_subsystem() function, which clients must call after fully initializing a subsystem created with nvmf_tgt_create_subsystem(). Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I56534668887ef99d2e892844acd12194920c3245
89 lines
2.8 KiB
C
89 lines
2.8 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_TGT_H
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#define NVMF_TGT_H
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#include <stdint.h>
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#include "spdk/nvmf_spec.h"
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#include "spdk/queue.h"
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struct rpc_listen_address {
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char *transport;
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char *traddr;
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char *trsvcid;
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};
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struct spdk_nvmf_tgt_conf {
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uint32_t acceptor_lcore;
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uint32_t acceptor_poll_rate;
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};
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struct nvmf_tgt_subsystem {
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struct spdk_nvmf_subsystem *subsystem;
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struct spdk_poller *poller;
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TAILQ_ENTRY(nvmf_tgt_subsystem) tailq;
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uint32_t lcore;
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};
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extern struct spdk_nvmf_tgt_conf g_spdk_nvmf_tgt_conf;
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struct nvmf_tgt_subsystem *
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nvmf_tgt_subsystem_first(void);
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struct nvmf_tgt_subsystem *
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nvmf_tgt_subsystem_next(struct nvmf_tgt_subsystem *subsystem);
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int spdk_nvmf_parse_conf(void);
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void nvmf_tgt_start_subsystem(struct nvmf_tgt_subsystem *subsystem);
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struct nvmf_tgt_subsystem *nvmf_tgt_create_subsystem(int num,
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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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spdk_nvmf_parse_subsystem_for_rpc(const char *name,
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const char *mode, uint32_t lcore,
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int num_listen_addresses, struct rpc_listen_address *addresses,
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int num_hosts, char *hosts[], const char *bdf,
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const char *sn, int num_devs, char *dev_list[]);
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int
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nvmf_tgt_shutdown_subsystem_by_nqn(const char *nqn);
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#endif
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