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CHANGELOG: update for DIF feature

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In SPDK 19.07, DIF insert and strip is supported for TCP transport of NVMe-oF
target, and  DIF reference tag remap is now supported for partitioned virtual
bdev modules.

This patch updates CHANGELOG to reflect these updates.

If summarizing shortly,

DIF insert/strip is supported in the NVMe/TCP target. User can choose
DIF insert/strip or pass-through based on the use case. DIF reference tag
remapping is supported in partition type virtual bdevs.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I452ccb60713928087e90bae0cfbf3393dfd61be7
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/462368
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Shuhei Matsumoto 2019-07-18 09:26:21 +09:00 committed by Darek Stojaczyk
parent 89003d5ca7
commit f84744e9d0
1 changed files with 25 additions and 0 deletions
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CHANGELOG.md
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@ -10,6 +10,18 @@ Blobfs file asynchronous operations were added to public APIs.
A new file API `spdk_posix_file_load` was added to load file content into a data buffer. A new file API `spdk_posix_file_load` was added to load file content into a data buffer.
New APIs `spdk_dif_ctx_set_data_offset`, `spdk_dif_verify_stream`,
`spdk_dif_get_range_with_md`, `spdk_dif_get_length_with_md` have been added,
and existing APIs `spdk_dif_ctx_init`, `spdk_dif_set_md_interleave_iovs`, and
`spdk_dif_generate_stream` have been refined to insert or strip DIF by stream
fasion with any alignment.
New APIs `spdk_dif_ctx_set_remapped_init_ref_tag`, `spdk_dif_remap_ref_tag`,
and `spdk_dix_remap_ref_tag` have been added to remap DIF reference tag.
New APIs `spdk_dif_update_crc32c` and `spdk_dif_update_crc32c_stream` have been
added to compute CRC-32C checksum for extended LBA payload.
### NVMe-oF Target ### NVMe-oF Target
Persistent reservation emulation has been added to the NVMe-oF target. Persistent reservation Persistent reservation emulation has been added to the NVMe-oF target. Persistent reservation
@ -34,6 +46,15 @@ scheduling strategy among different spdk threads.
Added infrastructure to retrieve global and per poll group NVMf statistics. Added infrastructure to retrieve global and per poll group NVMf statistics.
DIF strip and insert is now supported for TCP transport. When it is enabled, DIF
setting is not exposed to the NVMe-oF initiator, and DIF is attached into data
for write I/O and stripped from data for read I/O.
Added a field `dif_insert_or_strip` to struct spdk_nvmf_transport_opts, and
updated the related rpc function nvmf_create_transport to make this
configurable parameter available to users. The `dif_insert_or_strip` is relevant
for TCP transport for now and used to configure the DIF strip and insert.
### notify ### notify
The function `spdk_notify_get_types()` and `spdk_notify_get_events()` were The function `spdk_notify_get_types()` and `spdk_notify_get_events()` were
@ -56,6 +77,10 @@ would expect the drive to see the slowest 1% of I/O report. For underlying drive
significant latency, the latency values provided to the drive will be additive. This should be significant latency, the latency values provided to the drive will be additive. This should be
taken into account if trying to achieve an artificial latency on top of an nvme drive or aio device. taken into account if trying to achieve an artificial latency on top of an nvme drive or aio device.
DIF reference tag remapping is now supported for partition type virtual bdev
modules. When using partition type virtual bdevs, block address space is
remapped during I/O processing and DIF reference tag is remapped accordingly.
### nvme ### nvme
Added spdk_nvme_ctrlr_get_transport_id() to get the transport ID from a Added spdk_nvme_ctrlr_get_transport_id() to get the transport ID from a