31d033f944
Create one transport per nvmf target. Today, there is just one global nvmf target, but this paves the way for multiple. Change-Id: Iaa1f8c5e7b3c1e87621ef2a636c68c2dd8fd929e Signed-off-by: Ben Walker <benjamin.walker@intel.com> Reviewed-on: https://review.gerrithub.io/371748 Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
138 lines
4.7 KiB
C
138 lines
4.7 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_CTRLR_H
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#define SPDK_NVMF_CTRLR_H
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#include "spdk/stdinc.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_QPAIRS_PER_CTRLR 64
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struct spdk_nvmf_transport;
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struct spdk_nvmf_request;
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enum spdk_nvmf_qpair_type {
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QPAIR_TYPE_AQ = 0,
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QPAIR_TYPE_IOQ = 1,
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};
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struct spdk_nvmf_qpair {
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struct spdk_nvmf_transport *transport;
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struct spdk_nvmf_ctrlr *ctrlr;
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enum spdk_nvmf_qpair_type type;
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uint16_t qid;
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uint16_t sq_head;
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uint16_t sq_head_max;
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TAILQ_ENTRY(spdk_nvmf_qpair) link;
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};
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/*
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* This structure represents an NVMe-oF controller,
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* which is like a "session" in networking terms.
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*/
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struct spdk_nvmf_ctrlr {
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uint16_t cntlid;
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struct spdk_nvmf_subsystem *subsys;
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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(, spdk_nvmf_qpair) qpairs;
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int num_qpairs;
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int max_qpairs_allowed;
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uint32_t kato;
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union {
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uint32_t raw;
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struct {
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union spdk_nvme_critical_warning_state crit_warn;
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uint8_t ns_attr_notice : 1;
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uint8_t fw_activation_notice : 1;
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} bits;
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} async_event_config;
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struct spdk_nvmf_request *aer_req;
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uint8_t hostid[16];
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struct spdk_nvmf_transport *transport;
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TAILQ_ENTRY(spdk_nvmf_ctrlr) link;
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};
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void spdk_nvmf_ctrlr_connect(struct spdk_nvmf_qpair *qpair,
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struct spdk_nvmf_fabric_connect_cmd *cmd,
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struct spdk_nvmf_fabric_connect_data *data,
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struct spdk_nvmf_fabric_connect_rsp *rsp);
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struct spdk_nvmf_qpair *spdk_nvmf_ctrlr_get_qpair(struct spdk_nvmf_ctrlr *ctrlr, uint16_t qid);
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struct spdk_nvmf_request *spdk_nvmf_qpair_get_request(struct spdk_nvmf_qpair *qpair, uint16_t cid);
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void
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spdk_nvmf_property_get(struct spdk_nvmf_ctrlr *ctrlr,
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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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spdk_nvmf_property_set(struct spdk_nvmf_ctrlr *ctrlr,
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struct spdk_nvmf_fabric_prop_set_cmd *cmd,
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struct spdk_nvme_cpl *rsp);
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int spdk_nvmf_ctrlr_poll(struct spdk_nvmf_ctrlr *ctrlr);
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void spdk_nvmf_ctrlr_destruct(struct spdk_nvmf_ctrlr *ctrlr);
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int spdk_nvmf_ctrlr_set_features_host_identifier(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_get_features_host_identifier(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_set_features_keep_alive_timer(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_get_features_keep_alive_timer(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_set_features_number_of_queues(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_get_features_number_of_queues(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_set_features_async_event_configuration(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_get_features_async_event_configuration(struct spdk_nvmf_request *req);
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int spdk_nvmf_ctrlr_async_event_request(struct spdk_nvmf_request *req);
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#endif
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