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CHANGELOG: Update nvme section

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Change-Id: I4fc9e597281323baf8f03f5977db264efff77fbb
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452688
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Ben Walker 2019-04-30 09:48:03 -07:00
parent ae628a844e
commit 0017ba8b4b
1 changed files with 24 additions and 20 deletions
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CHANGELOG.md
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@ -4,26 +4,37 @@
### nvme
Added asynchronous probe support. New APIs spdk_nvme_probe_async(),
spdk_nvme_connect_async() and spdk_nvme_probe_poll_async() were added to
enable this feature, spdk_nvme_probe_async() and spdk_nvme_connect_async()
return a context associated with the specified controllers. Users then call
Added asynchronous probe support. New APIs spdk_nvme_probe_async(),
spdk_nvme_connect_async() and spdk_nvme_probe_poll_async() were added to enable
this feature. spdk_nvme_probe_async() and spdk_nvme_connect_async() return a
context associated with the specified controllers. Users then call
spdk_nvme_probe_poll_async() until it returns 0, indicating that the operation
is completed with success.
completed.
A new qpair creation option, delay_pcie_doorbell, was added. This can be passed
to spdk_nvme_alloc_io_qpair(). This makes the I/O submission functions,
such as spdk_nvme_ns_writev(), skip ringing the submission queue doorbell.
Instead the doorbell will be rung as necessary inside
spdk_nvme_qpair_process_completions(). This can result in significantly fewer
MMIO writes to the doorbell register under heavy load, greatly improving
performance.
to spdk_nvme_alloc_io_qpair(). This makes the I/O submission functions, such as
spdk_nvme_ns_writev(), skip ringing the submission queue doorbell. Instead the
doorbell will be rung as necessary inside spdk_nvme_qpair_process_completions().
This can result in significantly fewer MMIO writes to the doorbell register
under heavy load, greatly improving performance.
New API spdk_nvme_ctrlr_get_flags() was added.
spdk_nvme_ctrlr_get_regs_cmbsz() was added to report the size of the controller
memory buffer, if available.
NVMe hotplug poller is now able to detach devices hotremoved from the system
spdk_nvme_ctrlr_get_flags() was added to return controller feature
flags. Two flags are currently tracked:
SPDK_NVME_CTRLR_SGL_SUPPORTED
SPDK_NVME_CTRLR_SECURITY_SEND_RECV_SUPPORTED
The NVMe hotplug poller is now able to detach devices hot-removed from the system
via `/sys/bus/pci/devices/<bdf>/remove` and `/sys/bus/pci/devices/<bdf>/driver/unbind`.
Opal support was added for scan, take ownership, revert TPer, and dumping device
info. The nvme_manage tool can be used to perform these operations. The public
API functions are spdk_nvme_ctrlr_security_receive() and
spdk_nvme_ctrlr_security_send(). This module should be considered experimental
pending additional features and tests.
### raid
Added new strip_size_kb rpc param on create to replace the more ambiguous
@ -95,13 +106,6 @@ New `get_spdk_version` RPC method is introduced to get version info of the runni
The `start_nbd_disk` RPC method now take nbd_device as an optional parameter. If nbd_device
is specified, use that specified nbd device. If it's not specified, pick available one.
### Opal
Add Opal scan support for NVMe to check whether it supports SED Opal and dump
device info. Add Opal take ownership command support, revert TPer command support.
nvme_manage tool can be used to invoke this.
This module should be considered experimental pending additional features and tests.
### iSCSI target
DIF strip and insert is now supported. DIF settings are not exposed to the iSCSI initiator.