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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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@ -5,25 +5,36 @@
### nvme ### nvme
Added asynchronous probe support. New APIs spdk_nvme_probe_async(), Added asynchronous probe support. New APIs spdk_nvme_probe_async(),
spdk_nvme_connect_async() and spdk_nvme_probe_poll_async() were added to spdk_nvme_connect_async() and spdk_nvme_probe_poll_async() were added to enable
enable this feature, spdk_nvme_probe_async() and spdk_nvme_connect_async() this feature. spdk_nvme_probe_async() and spdk_nvme_connect_async() return a
return a context associated with the specified controllers. Users then call context associated with the specified controllers. Users then call
spdk_nvme_probe_poll_async() until it returns 0, indicating that the operation 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 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, to spdk_nvme_alloc_io_qpair(). This makes the I/O submission functions, such as
such as spdk_nvme_ns_writev(), skip ringing the submission queue doorbell. spdk_nvme_ns_writev(), skip ringing the submission queue doorbell. Instead the
Instead the doorbell will be rung as necessary inside doorbell will be rung as necessary inside spdk_nvme_qpair_process_completions().
spdk_nvme_qpair_process_completions(). This can result in significantly fewer This can result in significantly fewer MMIO writes to the doorbell register
MMIO writes to the doorbell register under heavy load, greatly improving under heavy load, greatly improving performance.
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`. 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 ### raid
Added new strip_size_kb rpc param on create to replace the more ambiguous 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 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. 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 ### iSCSI target
DIF strip and insert is now supported. DIF settings are not exposed to the iSCSI initiator. DIF strip and insert is now supported. DIF settings are not exposed to the iSCSI initiator.