8a154b2c0d
This patch is to solve the issue that two nvmf target connect the same rbd image and used for multipath. The scenario is host wants to access the same rbd image via two gateways, host and gateways are working as nvmf ini and tgt, and two gateways connect with the rbd image, io can switch to another gateway once one is broken. The targets of multipath must have the same uuid, so this patch add a new argument for bdev_rbd_create, like malloc dev. Signed-off-by: tanlong <948985618@qq.com> Change-Id: I593fedb6c5d94f625f1b331fdc40e2db488f7fb7 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9935 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
100 lines
3.3 KiB
C
100 lines
3.3 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_BDEV_RBD_H
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#define SPDK_BDEV_RBD_H
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#include "spdk/stdinc.h"
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#include "spdk/bdev.h"
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#include "spdk/rpc.h"
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struct cluster_register_info {
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char *name;
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char *user_id;
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char **config_param;
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char *config_file;
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};
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void bdev_rbd_free_config(char **config);
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char **bdev_rbd_dup_config(const char *const *config);
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typedef void (*spdk_delete_rbd_complete)(void *cb_arg, int bdeverrno);
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int bdev_rbd_create(struct spdk_bdev **bdev, const char *name, const char *user_id,
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const char *pool_name,
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const char *const *config,
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const char *rbd_name, uint32_t block_size, const char *cluster_name, const struct spdk_uuid *uuid);
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/**
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* Delete rbd bdev.
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*
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* \param bdev Pointer to rbd bdev.
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* \param cb_fn Function to call after deletion.
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* \param cb_arg Argument to pass to cb_fn.
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*/
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void bdev_rbd_delete(struct spdk_bdev *bdev, spdk_delete_rbd_complete cb_fn,
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void *cb_arg);
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/**
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* Resize rbd bdev.
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*
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* \param bdev Pointer to rbd bdev.
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* \param new_size_in_mb The new size in MiB for this bdev.
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*/
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int bdev_rbd_resize(struct spdk_bdev *bdev, const uint64_t new_size_in_mb);
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/**
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* Create a Rados cluster.
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*
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* \param info the info to register the Rados cluster object
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*/
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int bdev_rbd_register_cluster(struct cluster_register_info *info);
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/**
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* Delete a registered cluster.
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*
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* \param name the name of the cluster to be deleted.
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*/
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int bdev_rbd_unregister_cluster(const char *name);
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/**
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* Show the cluster info of a given name. If given name is empty,
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* the info of every registered cluster name will be showed.
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*
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* \param request the json request.
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* \param name the name of the cluster.
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*/
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int bdev_rbd_get_clusters_info(struct spdk_jsonrpc_request *request, const char *name);
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#endif /* SPDK_BDEV_RBD_H */
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