Jim Harris 6c760ec607 nvme: remove deprecated spdk_nvme_ctrlr_prepare_for_reset()

Note that the prepare_for_reset flag in spdk_nvme_ctrlr is
still needed - it's just set now in the nvme_ctrlr_disconnect
path instead of this deprecated and now removed API.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0a6aa1c72767eb67a84b8928a986e06cbac88240
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17936
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

2023-05-09 17:58:11 +08:00

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Deprecation

ABI and API 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 Versioning.

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.

Deprecated code paths must be registered with SPDK_DEPRECATION_REGISTER() and logged with SPDK_LOG_DEPRECATED(). The tag used with these macros will appear in the SPDK log at the warn level when SPDK_LOG_DEPRECATED() is called, subject to rate limits. The tags can be matched with the level 4 headers below.

Deprecation Notices

PMDK

PMDK is no longer supported and integrations with it in SPDK are now deprecated, and will be removed in SPDK 23.05. Please see: UPDATE ON PMDK AND OUR LONG TERM SUPPORT STRATEGY.

VTune

`vtune_support`

VTune integration is in now deprecated and will be removed in SPDK 23.05.

nvmf

`spdk_nvmf_qpair_disconnect`

Parameters cb_fn and ctx of spdk_nvmf_qpair_disconnect API are deprecated. These parameters will be removed in 23.09 release.

gpt

`old_gpt_guid`

Deprecated the SPDK partition type GUID 7c5222bd-8f5d-4087-9c00-bf9843c7b58c. Partitions of this type have bdevs created that are one block less than the actual size of the partition. Existing partitions using the deprecated GUID can continue to use that GUID; support for the deprecated GUID will remain in SPDK indefinitely, and will continue to exhibit the off-by-one bug so that on-disk metadata layouts based on the incorrect size are not affected.

See GitHub issue 2801 for additional details on the bug.

New SPDK partition types should use GUID 6527994e-2c5a-4eec-9613-8f5944074e8b which will create a bdev of the correct size.

lvol

`vbdev_lvol_rpc_req_size`

Param size in rpc commands rpc_bdev_lvol_create and rpc_bdev_lvol_resize is deprecated and replace by size_in_mib.

See GitHub issue 2346 for additional details.

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