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deprecation.md

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ABI and API Deprecation {#deprecation}

This document details the policy for maintaining stability of SPDK ABI and API.

Major ABI version can change at most once for each quarterly SPDK release. ABI versions are managed separately for each library and follow Semantic Versoning.

API and ABI deprecation notices shall be posted in the next section. Each entry must describe what will be removed and can suggest the future use or alternative. Specific future SPDK release for the removal must be provided. ABI cannot be removed without providing deprecation notice for at least single SPDK release.

Deprecation Notices {#deprecation-notices}

net

The net library is deprecated and will be removed in the 21.07 release.

nvmf

The following APIs have been deprecated and will be removed in SPDK 21.07:

  • spdk_nvmf_poll_group_get_stat (function in nvmf.h),
  • spdk_nvmf_transport_poll_group_get_stat (function in nvmf.h),
  • spdk_nvmf_transport_poll_group_free_stat(function in nvmf.h),
  • spdk_nvmf_rdma_device_stat (struct in nvmf.h),
  • spdk_nvmf_transport_poll_group_stat (struct in nvmf.h),
  • poll_group_get_stat (transport op in nvmf_transport.h),
  • poll_group_free_stat (transport op in nvmf_transport.h). Please use spdk_nvmf_poll_group_dump_stat and poll_group_dump_stat instead.

rpc

Parameter enable-zerocopy-send of RPC sock_impl_set_options is deprecated and will be removed in SPDK 21.07, use enable-zerocopy-send-server or enable-zerocopy-send-client instead. Parameter disable-zerocopy-send of RPC sock_impl_set_options is deprecated and will be removed in SPDK 21.07, use disable-zerocopy-send-server or disable-zerocopy-send-client instead.

rpm

pkg/spdk.spec is considered to be deprecated and scheduled for removal in SPDK 21.07. Please use rpmbuild/spdk.spec instead and see RPM documentation for more details.