0db0c443df
The rdma buffer for stripping DIF metadata is added. CPU strips the DIF metadata and copies it to the rdma buffer, improving the rdma write bandwith. The network bandwidth during 4KB random read test is increased from 79 Gbps to 99 Gbps, the IOPS is increased from 2075K to 2637K. Fixes issue #2418 Signed-off-by: Chunsong Feng <fengchunsong@huawei.com> Change-Id: If1c31256f0390f31d396812fa33cd650bf52b336 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11861 Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
91 lines
3.8 KiB
C
91 lines
3.8 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation. All rights reserved.
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* Copyright (c) 2019 Mellanox Technologies LTD. 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_TRANSPORT_H
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#define SPDK_NVMF_TRANSPORT_H
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#include "spdk/stdinc.h"
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#include "spdk/nvme.h"
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#include "spdk/nvmf.h"
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#include "spdk/nvmf_transport.h"
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void nvmf_transport_listener_discover(struct spdk_nvmf_transport *transport,
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struct spdk_nvme_transport_id *trid,
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struct spdk_nvmf_discovery_log_page_entry *entry);
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struct spdk_nvmf_transport_poll_group *nvmf_transport_poll_group_create(
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struct spdk_nvmf_transport *transport, struct spdk_nvmf_poll_group *group);
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struct spdk_nvmf_transport_poll_group *nvmf_transport_get_optimal_poll_group(
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struct spdk_nvmf_transport *transport, struct spdk_nvmf_qpair *qpair);
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void nvmf_transport_poll_group_destroy(struct spdk_nvmf_transport_poll_group *group);
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int nvmf_transport_poll_group_add(struct spdk_nvmf_transport_poll_group *group,
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struct spdk_nvmf_qpair *qpair);
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int nvmf_transport_poll_group_remove(struct spdk_nvmf_transport_poll_group *group,
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struct spdk_nvmf_qpair *qpair);
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int nvmf_transport_poll_group_poll(struct spdk_nvmf_transport_poll_group *group);
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int nvmf_transport_req_free(struct spdk_nvmf_request *req);
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int nvmf_transport_req_complete(struct spdk_nvmf_request *req);
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void nvmf_transport_qpair_fini(struct spdk_nvmf_qpair *qpair,
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spdk_nvmf_transport_qpair_fini_cb cb_fn, void *cb_arg);
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int nvmf_transport_qpair_get_peer_trid(struct spdk_nvmf_qpair *qpair,
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struct spdk_nvme_transport_id *trid);
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int nvmf_transport_qpair_get_local_trid(struct spdk_nvmf_qpair *qpair,
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struct spdk_nvme_transport_id *trid);
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int nvmf_transport_qpair_get_listen_trid(struct spdk_nvmf_qpair *qpair,
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struct spdk_nvme_transport_id *trid);
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void nvmf_transport_qpair_abort_request(struct spdk_nvmf_qpair *qpair,
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struct spdk_nvmf_request *req);
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void nvmf_request_free_stripped_buffers(struct spdk_nvmf_request *req,
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struct spdk_nvmf_transport_poll_group *group,
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struct spdk_nvmf_transport *transport);
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int nvmf_request_get_stripped_buffers(struct spdk_nvmf_request *req,
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struct spdk_nvmf_transport_poll_group *group,
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struct spdk_nvmf_transport *transport,
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uint32_t length);
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#endif /* SPDK_NVMF_TRANSPORT_H */
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