update Intel copyright notices

per Intel policy to include file commit date using git cmd
below. The policy does not apply to non-Intel (C) notices.

git log --follow -C90% --format=%ad --date defa

update Intel copyright notices

per Intel policy to include file commit date using git cmd
below. The policy does not apply to non-Intel (C) notices.

git log --follow -C90% --format=%ad --date default <file> | tail -1

and then pull just the 4 digit year from the result.

Intel copyrights were not added to files where Intel either had
no contribution ot the contribution lacked substance (ie license
header updates, formatting changes, etc). Contribution date used
"--follow -C95%" to get the most accurate date.

Note that several files in this patch didn't end the license/(c)
block with a blank comment line so these were added as the vast
majority of files do have this last blank line. Simply there for
consistency.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot

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Replace most BSD 3-clause license text with SPDX identifier.

Many open source projects have moved to using SPDX identifiers
to specify license information, reducing the amount of
boilerplate code in

Replace most BSD 3-clause license text with SPDX identifier.

Many open source projects have moved to using SPDX identifiers
to specify license information, reducing the amount of
boilerplate code in every source file. This patch replaces
the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause
identifier.

Almost all of these files share the exact same license text,
and this patch only modifies the files that contain the
most common license text. There can be slight variations
because the third clause contains company names - most say
"Intel Corporation", but there are instances for Nvidia,
Samsung, Eideticom and even "the copyright holder".

Used a bash script to automate replacement of the license text
with SPDX identifier which is checked into scripts/spdx.sh.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: <qun.wan@intel.com>

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bdev/zone: add support for get zone id

In the bdev-zone API, there are a few functions that takes a zone_id:
spdk_bdev_get_zone_info(), spdk_bdev_zone_management(), and the
spdk_bdev_zone_append() f

bdev/zone: add support for get zone id

In the bdev-zone API, there are a few functions that takes a zone_id:
spdk_bdev_get_zone_info(), spdk_bdev_zone_management(), and the
spdk_bdev_zone_append() functions.

The way a zoned application is usually written is that it starts off
by getting the zone report for all zones (zone_id will be sent in as 0),
and then the application will keep the whole zone report in memory.

Therefore, an application usually have access to the zone_id/zslba for
all zones. However, there are cases, e.g. when getting an error on write,
where the completion callback will only have the lba of the write that
failed.

Add a helper function that can be used to get the zone_id/slba for a
given lba. Having this helper in bdev-zone will avoid SPDK applications
needing to provide their own implementation for this.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I978335f87f7d49bc33aed81afcaa6d9f0af8a1e4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10180
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

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bdev/zone: add support for get num zones

There are three modules implementing the bdev-zone API:
bdev_nvme, bdev_ocssd, and vbdev_zone_block.

For all three modules, the number of zones can be calcu

bdev/zone: add support for get num zones

There are three modules implementing the bdev-zone API:
bdev_nvme, bdev_ocssd, and vbdev_zone_block.

For all three modules, the number of zones can be calculated using:
block_count / zone_size.

To avoid this calculation being performed everywhere, create a helper
function in bdev_zone.h, together with the other zone APIs, such that
a user can easily get the number of zones.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I2967b15a604ab8bf4420588e7510b9820762f925
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7451
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

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bdev/zone: add support for max zone append size

Add support in bdev_zone.h for getting the maximum zone append data
transfer size.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I6

bdev/zone: add support for max zone append size

Add support in bdev_zone.h for getting the maximum zone append data
transfer size.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I61203e64d51601232c6578a090fa52975364c1f3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6910
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>

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bdev/zone: add support for max active zones

The NVMe Zoned Namespace Command Set Specification has, in addition to a
Max Open Resources limit, a Max Active Resources limit.

An active resource is de

bdev/zone: add support for max active zones

The NVMe Zoned Namespace Command Set Specification has, in addition to a
Max Open Resources limit, a Max Active Resources limit.

An active resource is defined as zone being in zone state implicit open,
explicit open, or closed.

Create a function spdk_bdev_get_max_active_zones() in the generic SPDK
zone layer, so that this limit can be exposed to the user.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Change-Id: I6f61fc45e1dc38689dc54d5649c35fa9b91dbdfc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6908
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>

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lib/bdev: remove _spdk prefix from functions.

We want to avoid confusion between _spdk and spdk
prefixes.

Signed-off-by: Seth Howell <seth.howell@intel.com>
Change-Id: I72b7948d94b0e9d695ae6b323fbd

lib/bdev: remove _spdk prefix from functions.

We want to avoid confusion between _spdk and spdk
prefixes.

Signed-off-by: Seth Howell <seth.howell@intel.com>
Change-Id: I72b7948d94b0e9d695ae6b323fbd8bb6e4c143e2
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2436
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>

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bdev/zone: scattered zone append

Added scatter/gather version of the zone append command.

Change-Id: I6f999be335fe3e896456ca7e17d0f02743f06ca1
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.co

bdev/zone: scattered zone append

Added scatter/gather version of the zone append command.

Change-Id: I6f999be335fe3e896456ca7e17d0f02743f06ca1
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/895
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

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bdev: rename spdk_bdev_get_io to bdev_channel_get_io

This function is not part of the SPDK public API, so
remove the spdk_ prefix from it to make it more clear
this is internal to the SPDK bdev libr

bdev: rename spdk_bdev_get_io to bdev_channel_get_io

This function is not part of the SPDK public API, so
remove the spdk_ prefix from it to make it more clear
this is internal to the SPDK bdev library.

Also add "channel" to the name since this function is
operating on the channel parameter.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I57897ab4bf601b90551259b7cf6efa63152ed02f

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/475031
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>

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bdev: remove spdk_ prefix from spdk_bdev_io_init

This is not part of the public SPDK API, so remove
the spdk_ prefix to make it clear this is internal
to the bdev library.

Signed-off-by: Jim Harris

bdev: remove spdk_ prefix from spdk_bdev_io_init

This is not part of the public SPDK API, so remove
the spdk_ prefix to make it clear this is internal
to the bdev library.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ibda76e4d8e34dde0c2fe638cb965e5ba2d9e47b5

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/475030
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>

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bdev: remove spdk_ prefix from spdk_bdev_io_submit

This function is not part of the SPDK public API, so
remove the spdk_ prefix to make that more clear when
reading the code.

Signed-off-by: Jim Har

bdev: remove spdk_ prefix from spdk_bdev_io_submit

This function is not part of the SPDK public API, so
remove the spdk_ prefix to make that more clear when
reading the code.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I5ea4c04c474a6cf0862f11921daa97c9df728e96

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/475029
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>

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lib/bdev: Added spdk_bdev_zone_append()

spdk_bdev_zone_append() allows writing to
open zone from multiple threads or from
single thread with queue depth greater than
one. Zone first logical address

lib/bdev: Added spdk_bdev_zone_append()

spdk_bdev_zone_append() allows writing to
open zone from multiple threads or from
single thread with queue depth greater than
one. Zone first logical address and number of
blocks to be written are provided by user.
Logical block address of written data is
returned in completion callback.

Change-Id: I4da994d72b7e0fe6621962e3b0f2380940ec3b45
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/461614
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

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lib/bdev: Added spdk_bdev_io_get_append_location()

spdk_bdev_io_get_append_location() will be
used during zone append command to retrieve
location of data write.

Change-Id: I1f46ae9d2f745aa53264c1a

lib/bdev: Added spdk_bdev_io_get_append_location()

spdk_bdev_io_get_append_location() will be
used during zone append command to retrieve
location of data write.

Change-Id: I1f46ae9d2f745aa53264c1a01da3f7cef4f38c72
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469164
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>

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lib/bdev: Added spdk_bdev_zone_management()

spdk_bdev_zone_management() allows to perform
management action on a zone. Zone is specified
by start logical block address. Available zone
actions: open,

lib/bdev: Added spdk_bdev_zone_management()

spdk_bdev_zone_management() allows to perform
management action on a zone. Zone is specified
by start logical block address. Available zone
actions: open, close, reset and finish.

Change-Id: Ie7eaed3e2cc7b9b49dd51ee2d6c28b4ef2f23eb9
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460647
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

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lib/bdev: Added spdk_bdev_get_zone_info() command

spdk_bdev_get_zone_info() is used for retriving
information about zones inside zoned namespace.

Change-Id: I8f931505245e984c0b1ee35ed6592c978ee4754

lib/bdev: Added spdk_bdev_get_zone_info() command

spdk_bdev_get_zone_info() is used for retriving
information about zones inside zoned namespace.

Change-Id: I8f931505245e984c0b1ee35ed6592c978ee47544
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460643
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

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lib/bdev: Zoned bdev public header

Added new public header for zoned bdev. Zoned bdev is an
extension of the bdev interface. Generic concept comes
from ATA/SCSI and is also being worked as an NVMe T

lib/bdev: Zoned bdev public header

Added new public header for zoned bdev. Zoned bdev is an
extension of the bdev interface. Generic concept comes
from ATA/SCSI and is also being worked as an NVMe TP.

Zoned device logical blocks space is divided into fixed-sized
zones. Each zone is described by its start logical block address
and capacity. Writes to a single zone need to be sequential.
After zone is fully written it need to be reset to write to it
again. Such writing schema could be very beneficial in terms of
write amplification factor for NAND based devices.
SPDK Flash Translation Layer library will be consuming this
interface in the future.

Extending SPDK bdev interface will allow to use existing bdev
infrastructure for this new type of devices.

Zoned device have several properties defined in spdk_bdev
structure:
- zone_size: default size of each zone
- max_open_zone: maximum number of open zones
- optimal_open_zones: optimal number of open zones to get
best performance on writes

Single zone properties are defined in spdk_bdev_zone_info
structure:
- start_lba: first logical block of z zone
- write_pointer: logical block address in the zone at
which next write shall occur.
- capacity: maximum number of logical blocks that may
be written in the zone when zone is empty.
- state: zone state

Several zone states are defined: Empty, Open, Full, Closed,
Read Only and Offline.

To change zone state zone actions are defined: Close, Finish,
Open and Reset.

Change-Id: I5fcc22d548c15743329344cae96f5ff73e268504
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460642
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>

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