Functionality of resizing logical volumes is currently
a work in progress, thus it is disabled in this patch.
It is no longer possible to use RPC and lib functionality.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I518e7196096f52e3ad9e91d658e1bb6c3301b688
Reviewed-on: https://review.gerrithub.io/380916
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Currently there is no way to know total space availible on lvol store or
how much is left after creating lvol bdevs.
Four new fields should were added to get_lvol_stores:
- total number of blocks
- number of free blocks left
- block size (currently always 4096, but should be known to user)
- cluster size
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I93dec2d4b2843f0ee51dc9883c8451cf55353f7b
Reviewed-on: https://review.gerrithub.io/381131
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Piotr Pelpliński <piotr.pelplinski@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
New optional parameter -c or --cluster_sz in construct_lvol_store() RPC,
as well as in vbdev_lvol and lvol lib API.
This parameter allows to configure cluster size of blobstore that lvol store
is build upon.
When this parameter is not specified, default of 1GiB is used.
spdk_lvs_opts struct was created to facilitate any future options when
creating lvol store.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ibfe8765ede3e78ff19c36f46043e4cec2e5c9f97
Reviewed-on: https://review.gerrithub.io/379356
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Piotr Pelpliński <piotr.pelplinski@intel.com>
This puts responsibility on the caller to free the buffer
and do any other cleanup associated with the partition base
(for example, GPT buffer).
While here, also clean up a bunch of places where on
various failures during initialization, it would just
free the buffer instead of calling spdk_bdev_part_base_free().
The latter is required to make sure the bdev descriptor
gets closed as well.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ic000339459eca4a4a1d103da2e1f3feffe7e764f
Reviewed-on: https://review.gerrithub.io/378653
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
At very high queue depths, bdev modules may not have enough
internal resources to track all of the incoming I/O. For example,
we allocate a finite number of nvme_request objects per allocated
queue pair. Currently if these resources are exhausted, the
bdev module will return failure (with no indication why) which
gets propagated all the way back to the application.
So instead, add SPDK_BDEV_IO_STATUS_NOMEM to allow bdev modules
to indicate this type of failure. Also add handling for this
status type in the generic bdev layer, involving queuing these
I/O for later retry after other I/O on the failing channel have
completed.
This does place an expectation on the bdev module that these
internal resources are allocated per io_channel. Otherwise we
cannot guarantee forward progress solely on reception of
completions. For example, without this guarantee, a bdev
module could theoretically return ENOMEM even if there were
no I/O oustanding for that io_channel. nvme, aio, rbd,
virtio and null drivers comply with this expectation already.
malloc only complies though when not using copy offload.
This patch will fix malloc w/ copy engine to at least
return ENOMEM when no copy descriptors are available. If the
condition above occurs, I/O waiting for resources will get
failed as part of a subsequent reset which matches the
behavior it has today.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iea7cd51a611af8abe882794d0b2361fdbb74e84e
Reviewed-on: https://review.gerrithub.io/378853
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Also updated docs.
Change-Id: I2e53c31b2c9c575d8adea23ed92f113e69f324ed
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/380490
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This is required for upcoming UNMAP
implementation in bdev_virtio.
While here, also added documentation for
spdk_bdev_io_get_buf().
Change-Id: Ia769ee9b8b132f31208ae66598b29a1c9ed37312
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/379721
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Previously incorrectly it was assumed that cluster size
was always to be 1MiB. For most evident example of this
please see spdk_lvol_create() sz > free_clusters comparison.
This is now fixed and lvol->sz was changed to lvol->cluster_num.
It was done to increase readability - only dealing with
number of clusters when creating or resizing lvol.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: If8cdbad18978319e57b6952dbf5a55d56785f108
Reviewed-on: https://review.gerrithub.io/380467
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This code was still using an old paradigm of returning the
number of bytes associated with a successful submission.
Just return 0 on success instead - if caller needs the
number of bytes for some reason they have the information
to get it.
While here, return an appropriate negated errno where possible -
we especially want ENOMEM returned when an ioat channel runs out
of descriptors.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I5858ccd6cff916b6c80fda7d2c9fce96fb39ef89
Reviewed-on: https://review.gerrithub.io/378858
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
It does not seem nessecary to include it, when this it used just once
in lvol disk creation.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I42ead55329f0ac7e55bb73702d071f118a5c7931
Reviewed-on: https://review.gerrithub.io/379678
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
To increase readability, union in spdk_lvol_store_req is now split
into four separate structures.
As well spdk_bdev from lvs_basic/spdk_lvs_req was removed as it was
not needed.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I65c5155f3d15151a97cf8f8e425b26aa1966b677
Reviewed-on: https://review.gerrithub.io/379169
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Previously, we naively assumed that a completed
reset was the reset in progress, and would
unilaterally set reset_in_progres to false.
So change reset_in_progress to a bdev_io pointer
instead. If this is not NULL, a reset is not in
progress. Then when a reset completes, we only
set the reset_in_progress pointer to NULL if we
are completing the reset that is in progress.
We also were not aborting queued resets when
destroying a channel so that is fixed here too.
The added unit test covers both fixes above - it will
submit two resets on a different channels, then destroy
the second channel. This will abort the second reset
and check that the bdev still sees the first reset as in
progress.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I61df677cfa272c589ca03cb81753f71b0807a182
Reviewed-on: https://review.gerrithub.io/378199
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Upper layers are not supposed to put an I/O channel if there
are still I/O outstanding. This should apply to resets as well.
To better detect this case, do not remove the reset from
the channel's queued_reset list until it is ready to be
submitted to the bdev module. This ensures:
1) We can detect if a channel is put with a reset outstanding.
2) We do not access freed memory, when the channel is destroyed
before the reset message can submit the reset I/O.
3) Abort the queued reset if a channel is destroyed.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0c03eee8b3642155c19c2996e25955baac22d406
Reviewed-on: https://review.gerrithub.io/378198
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Since all direct bdev_io types have the same layout,
there is no need to keep them differentiated.
Change-Id: If8bb85e43c9922c0ebfc39837e3a45006e508b56
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/377686
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This is a mid-step towards unifying all direct
bdev_io types.
Change-Id: Ie4da108f2710891e503eb0863148d8fa182d44ee
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/379291
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
num_blocks and offset_blocks are present in most
other bdev_io types with num_blocks being
before the offset_blocks. bdev_io->flush was
outstanding here.
The fields has been reordered in preparation
to unifying many bdev_io types. See next patches
for details.
Change-Id: I7f12bfdc88a87ab263107d0d0d1b30b848702bcc
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/379290
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This restriction causes bdevs examination/discovery to fail
when there are asynchronous operations. We should remove this
limitation for now. Future plan is to implement approach
similar to the one that is present in kernel.
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ibe5572297672022412d25a4a835dc9527ce97f3e
Reviewed-on: https://review.gerrithub.io/378758
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This will be used to simulate multi-threading for
bdev unit tests.
While here, alphabetize the existing calls - calloc
had been inserted out of order in a couple of places.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I559cd1fd79e78f03ebdac313e0bbedbcdde4a8c1
Reviewed-on: https://review.gerrithub.io/377968
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
This patch shows UUID and base bdev for logical volume stores
when get_lvol_stores() RPC is called.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Idbd0bc6c4a0334e5af8d4a674a203ddb2270f3e4
Reviewed-on: https://review.gerrithub.io/374604
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Change-Id: Ia96ae78ff9530d953181ac5f7255a38f3c8ec430
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Reviewed-on: https://review.gerrithub.io/375392
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This moves towards the ability to queue ios while
a reset is in progress.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ibb8efbcec3931f966eb43030ea91945dfaaa5a77
Reviewed-on: https://review.gerrithub.io/377827
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
First, improve packing of spdk_bdev_io. Move any
fields which must be zeroed into the first cacheline.
Also change type and status from enums (needing 4 bytes)
to int16_t which is still a far bigger range than
needed.
Next, modify spdk_bdev_get_io to only zero the
first cacheline (actually a bit less).
SPDK_BDEV_IO_TYPE_INVALID is also added, making it
explicit that 0 is an invalid value for the IO type.
Previously this was somewhat inferred.
There are still additional improvements that can
be made to this area - primarily combining
spdk_bdev_get_io() and spdk_bdev_io_init() into
a single function.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I1916d6d5db02c93622b9725ec1095148e3f384d8
Reviewed-on: https://review.gerrithub.io/377799
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
We no longer support resubmitting an existing I/O to
a lower bdev. This enables accurate tracking of I/O
at each bdev layer for purposes of reset handling and
QoS.
__submit_request() in bdev.c is now only called
from spdk_bdev_io_submit(), so just collapse these
two functions together while we are here.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I1b46df42b1a6476f9dbd8c61dd3380dbd145315d
Reviewed-on: https://review.gerrithub.io/377626
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
split, gpt and error all have a lot of similar code, and
are based on the presumption of one or more "partition" bdevs
on a "base" bdev. This results in quite a bit of duplicated
code between these three bdev modules. The error bdev
module does follow this same model - it just always has only
a one-to-one mapping between the error bdev and its base bdev.
As all of the modules move to allocating their own bdev_io
rather than allowing for adjusting an existing bdev_io and
resubmitting it, there will be even more duplicated code
between these modules.
So this patch adds a set of helper functions in the common
bdev library to eliminate all of this duplicated code.
This patch also moves the split module to use it - future
patches will also convert gpt and error.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Id8032331b46c32da9fca18a077580ccb274c6204
Reviewed-on: https://review.gerrithub.io/376423
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Allows called to specify something other than stderr such as
stdout. Existing callers updated to use stderr.
Change-Id: I48a703e1474a45952878121a83c19fef1c43d630
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/377420
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The bdev modules now take all read, write, unmap, and flush requests in
terms of blocks rather than bytes.
The public bdev APIs still accept offset and length in bytes for now.
Change-Id: I57f0955d52272f57755f0ff4dbc56721fdc2ef51
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376037
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
bdev_virtio requires us to do SCSI inquiry for
each device and wait for a response. It currently
polls inline for this response, taking up entire
reactor exclusively. Making it async would allow
other pollers to run while bdev_virtio still has
to wait.
Change-Id: Iefc88e0a2efb5b791ffe23b2e623b7c50d759084
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/375573
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
SPDK_INFOLOG() is comparable to SPDK_DEBUGLOG() in that it takes a
per-component trace flag, but it is available even in non-debug builds.
This patch also makes SPDK_LOG_REGISTER_TRACE_FLAG() active for all
builds, not just debug builds.
Change-Id: I9727b1a20bd1efa0f97b743d4f529c2b1f6be112
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375835
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This matches the name to the behavior and prepares for addition of a new
log macro for "info" log level.
Change-Id: I94ccd49face4309d3368e399528776ab140748c4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375833
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This makes it consistent it with other parts of this structure.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie36488813b53ce20663c50a5c9f049c4c9723d3a
Reviewed-on: https://review.gerrithub.io/375494
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
gencnt is no longer really used since there is no more
differentiation between "soft" and "hard" reset. The
original idea was that a hard reset would complete I/O
known to the bdev layer even if the underlying bdev
module had not actually completed it yet. We do not
actually support that concept, and it was a bit flawed
anyways.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ifa2c85bb474c7dd55eb7386d6cad5079f5edbccc
Reviewed-on: https://review.gerrithub.io/375484
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I1d62e34deed873446a9a87f16188b5c8ed21aea5
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/372551
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Most of the work here revolves around having to split
an I/O that spans a cluster boundary. In this case
we need to allocate a separate iov array, and then
issue each sub-I/O serially, copying the relevant
subset of the original iov array.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0d46b3f832245900d109ee6c78cc6d49cf96428b
Reviewed-on: https://review.gerrithub.io/374880
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Allow passing the NVMe namespace optimal I/O boundary through the bdev
layer.
Change-Id: I27a2d5498df56775d3330e40c31bd7c23bbc77a5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/374532
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This is far simpler, although it does limit the bdev
layer to unmapped just one range per command. In practice,
all of our code reports limits of just one range per command
anyway.
Change-Id: I99247ab349fe85b9925769e965833b06708d0d70
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/370382
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
No new coverage added, just used the STUB macros in nvme UT
to make sure they cover all the cases and discovered a few small
tweaks needed: (1) added _V variant to declare void stubs (if
someone sees an easy way to make DECLARE_STUB handle this case
that'd be cleaner but I don't think its a big deal) and (2)
updated DECLARE_STUB so that it can set a struct return value
by adding {} to the ut_ variable set statement.
Also ordered the declarations simply for readability, the _V
first, the regular stubs next, the _P next and then the stubs
that don't have a macro to cover them because they do something
other than return a specific value.
Change-Id: Idd8919d2b9e9daa76dd629364ea1d0285657fa81
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/368420
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
While here, add a new DEFINE_STUB_V for void stubs.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6b0b27616ddc2525cdd425f65edf8a0bd89ba564
Reviewed-on: https://review.gerrithub.io/371735
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Change-Id: Ie25a87c4b3f781299fa744fdcff6c9a63d473935
Signed-off-by: Roman <roman.sudarikov@intel.com>
Reviewed-on: https://review.gerrithub.io/365723
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This enables checking permissions - for example,
spdk_bdev_write will fail if the descriptor was not
created with write permissions.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I68b65a560f471f2e0f71a7f42cfa6689b911110f
Reviewed-on: https://review.gerrithub.io/369493
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
We still will sort the bdev_module list so that modules
with an examine() callback are initialized first. This ensures
they have a chance to initialize before later modules start
registering physical block devices.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I792cfb41b0abe030fe2486a2c872cbf329735932
Reviewed-on: https://review.gerrithub.io/369486
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Module initializaiton was made asynchronous recently
to support bdev modules like gpt which need to do
asynchronous I/O. But all modules now do any
asynchronous I/O in their examine() routines, and
init functions only do very basic operations to be
ready to handle examine() callbacks.
So simplify the bdev code and modules to go back to
a synchronous init procedure.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Idb16156796ad7511d00f465d7a2db9acda6315b6
Reviewed-on: https://review.gerrithub.io/369485
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This includes file names, functions, #defines, etc.
There are still a few uses of "blockdev" outside of
include/ and lib/ - these can be handled later.
This preps for a future patch to consolidate vbdev
modules and bdev modules into just bdev modules.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I70e575709ae1b0a116b08515fd38ae793de05377
Reviewed-on: https://review.gerrithub.io/369325
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
vbdev modules still open/close bdevs as normal, but
should open bdevs read only when tasting (i.e. reading
the GPT to see if there are SPDK partitions). When
a vbdev module is ready to claim the bdev for purposes
of creating virtual bdevs on top of it, it calls
spdk_vbdev_module_claim_bdev(). It can pass its
open descriptor as well to have it promoted to
write access (required for future vbdev modules like
logical volumes).
Note: error vbdev was changed to copy the base bdev
parameters one-by-one instead of a blind memcpy - we
do not want to copy the base bdev's vbdev_claim_module
into the new bdev!
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If2ee67dc78daf96050343c473671aa3402991bb1
Reviewed-on: https://review.gerrithub.io/368628
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Add a new spdk_vbdev_module_examine_done() API which
vbdev modules can use to notify the generic bdev layer
once a base bdev examination is complete.
This is especially required for asynchronous vbdevs
like GPT which must issue I/O to the base bdev.
As part of this patch, add examine callbacks
for both split and error, which for now only call
this new functions. Later patches will move code from
the init callback to the examine callback for these
modules. examine callbacks are now required for all
vbdev modules.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I49f2d012d1675b878bcd23afff427c740c6502c7
Reviewed-on: https://review.gerrithub.io/368831
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This eliminates overloading of the term "register"
in the context of bdevs, as well as opens up the
idea of examining bdevs not just when they are
registered, but also after they are closed with
write access.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I9e15f9dc0fa4e02214f188f987f9da2dbc8db1f7
Reviewed-on: https://review.gerrithub.io/369042
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ic3051b63942770e45be22af0ae03a78a7c543f81
Reviewed-on: https://review.gerrithub.io/368597
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Add a name parameter to the MODULE_REGISTER macros, and then
modify each bdev module to pass a string for its name.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If878617ce3c3eacfcf5df44ed6f194f11c66f78f
Reviewed-on: https://review.gerrithub.io/368596
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Retire the old claim/unclaim semantics in favor of
open/close. Clients must now open a bdev to get
an spdk_bdev_desc, then pass this desc to get an
I/O channel.
This allows multiple clients to open a bdev,
although only one may open a bdev with write
access.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4d319f1278170124169a8a75fd791e926b3f7171
Reviewed-on: https://review.gerrithub.io/367611
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This makes them look more like regular function calls and keeps the
coding style consistent.
Change-Id: I019980bb381abb0dec0aae041340a44bbffe23f3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368205
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Each virtual bdev now has a pointer to its base
bdev, and a base bdev has a pointers to any virtual
bdevs built on top of it.
Also add a new set of leaf iterators, to get only
bdevs that have no virtual bdevs built on top of
them. These iterators are now used by the bdevio and
bdevperf utilities, in advance of the claim/unclaim
semantics getting removed in a future patch.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I669783764407cdd4920b5ee121959e2a58c8d436
Reviewed-on: https://review.gerrithub.io/367610
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Includes macros for wrappers (for syscalls) and stubs
(for SPDK functions) including an example of syscall
wrapper as well as a stub with both pointer and non
pointer values.
Change-Id: I9b19d81d5b9cbf2bbb327f58dbf985b3b253e800
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/366348
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Abstract these through the bdev API to break this
dependency on the event framework.
Change-Id: I108505bf27e94b2985f53d0a4dc0b847ae264d25
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/366340
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Use the log level enum to eliminate the variants of the log
function.
Change-Id: I5bd0e7b4f84f78dab86a5102baa6baa0808627a8
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365293
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This also requires vbdev modules to call spdk_bdev_reset
explicitly on the base bdev, rather than just resubmitting
the original reset bdev_io.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie33d506f68506096306c9f0a9ff5e11141578b15
Reviewed-on: https://review.gerrithub.io/365712
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
We can do all of the completion work first, and then
make the decision at the very end on whether to
defer the callback or not.
This also removes the bdev_io defer_callback member -
we no longer need it since we now only defer the
callback itself, instead of deferring the full
execution of the spdk_bdev_io_complete() routine.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3285e34d2fbce34d4254dca2119561ff825ee9e8
Reviewed-on: https://review.gerrithub.io/365711
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
In this patch, spdk_app_init will be merged into
spdk_app_start.
Due to this change, we need to change event_perf
to use spdk_app_start, since we cannot use spdk_app_init
anymore. So the related changes for event_perf is to
make it work with reactor framework.
Change-Id: Id67edf209fd628cca361a499068c93aeedfe6167
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/364153
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This patch shows how to use the spdk_mock library which now only
consists of --wrap capability for a few functions.
Next will be a patch that provides a generic mock capability to
use either the --wrap feature or a combination of globals and
stubs to make adding more UT easier wrt mocking. After that is
in place nvme_ut.c will be updated to use the new library for
all mocking.
Change-Id: I1a6ffb722da043bb70bd4cfe1afa7c5e39a0fccb
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/365074
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ia45876fb6f0eefd987cdb36521ecb591ef1f9499
Reviewed-on: https://review.gerrithub.io/365669
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This ensures a reset is completed after any I/O completions
that may have been deferred.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I9efe5c07435371ff8c8e0c826349e9349ade02f3
Reviewed-on: https://review.gerrithub.io/365663
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This patch doesn't use it yet but sets up the ability to so that
upcoming unit test pathces can. The next patch will include use
of wrap in one nvme UT and then following that the wrap and
today's use of globally controlled stubs will be morphed into a
simple mock type capability for spdk unit tests.
Change-Id: I252160266f0b5c76e50fd213cb3e1686d48b9d0e
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/363441
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This is only needed inside of bdev modules.
Change-Id: Ia532a0bd40ead5ff08a0e352f9aeb60f3898245b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/364118
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Dynamically allocate bdev names to remove the arbitrary 16-character
name length limit.
All of the existing product_names are constant strings, so those can
just use string literals instead of a copy per bdev.
Change-Id: I3280da67a4fcf2e4ec8ee8193362ca1b96a9c0cb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/363601
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Support passthru for NVMe admin commands.
Change-Id: If926f2ecabb078a553158f544c10a92452dbdb39
Signed-off-by: Edward Yang <eyang@us.fujitsu.com>
Reviewed-on: https://review.gerrithub.io/363294
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
There is now just one type of reset, which is equivalent
to a HARD reset previously.
Change-Id: I955b219cbc5c25793d97de1cc003b30ae99313ac
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/362615
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
SPDK subysystem initialization now is async,
so we need to guarantee the initialization is done,
then call event composed of start_fn passed by user
in spdk_app_start.
Change-Id: Icc790cbb3da04c1063204938b79140c4218986e4
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/362654
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Change-Id: I93684a004e2ae276734edbb4767b5ba1bac3dd48
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/362111
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
The next patch will make bdev modules init
in the async manner.
Change-Id: I4909c80510d786daf54003b99a5925428cf37373
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/362110
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This allows virtual blockdevs to inspect newly-added bdevs and
potentially insert themselves automatically.
Change-Id: If567a950d753e5f08861a5de22a2e1350376e50f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/362077
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This wasn't used anywhere and we currently believe there
are superior software-only techniques for controlling
quality of service.
Change-Id: Icdadd5870ed0629b338c307d2619bbc242c3e7a3
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/362065
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The user should not see the bdev_io status directly; the NVMe and SCSI
error code wrappers provide the ability to translate to the desired
format regardless of what kind of error is stored inside the bdev_io.
Replace the spdk_bdev_io_completion_cb status parameter with a bool
simply indiciating whether the I/O completed successfully.
Change-Id: Iad18c2dac4374112c41b7a656154ed3ae1a68569
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/362047
Tested-by: <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Move some of the fields in spdk_bdev_io (the layout of which is no
longer public API) to put related fields together and improve struct
packing.
Change-Id: I0ca5d9441b00c65703c35391d125059eaa4bcee3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make the buffer allocation work for all types of
commands, not just read.
Change-Id: I72d8f67a724566630e7c4a74759fcb08449f7de4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
We plan to use these buffers for more than just reads.
Change-Id: I8fa6cb432a6cfe4406fbf240cd3aa2ae4ab5f3d5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
The user can get there via the bdev, so this didn't
have a purpose.
Change-Id: I7f85bb71d5ee238d37ba3624d0ac68a161c95e49
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
In the pattern set by spdk_bdev_io_complete_nvme_status(), allow
blockdev modules to complete a bdev_io with a SCSI status code.
Also move it to the internal bdev header file, since only bdev modules
should be setting bdev_io status codes.
Change-Id: I8b6afad2c02d7c010c5e60f06a7c7e0785eb87ca
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Move the scsi_nvme translation code from the SCSI library into bdev, and
provide a generic way to translate any bdev_io status into a SCSI
status.
Change-Id: Ib61a6209387c24543e31574e2b5ca249e2ac8b74
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Fix up the existing comment blocks misaligned in the first column.
Also add line numbers to the comment checks.
Change-Id: I9d28c365271df36e7013d74cbb02d0023ab4f581
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Some calls were passing bdev->ctxt, some calls just
bdev. In most of our implementations those are the
same pointer, but they aren't necessarily.
Change-Id: If2d19f9eef059aded10a917ffb270c1dc4a8dc41
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
The DPDK mask and the reactor mask are always the same.
Change-Id: I83d3ab87cdfb405574f6472cfc222d3f311abdb1
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This virtual block device takes an underlying block device and splits it
into several smaller equal-sized block devices.
Change-Id: I6f6e686c1177b2e4885f7e88809ad329caae55bd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
While here, make it clear this is a benchmark that
tests internal APIs.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie5a57fdcee12b47568542721095c49d28ece5529
This prevents the need for bdev users and modules to manipulate the
internal bdev_io error.nvme fields.
For now, all non-NVMe error types are treated as a generic device error,
but translation from SCSI to NVMe could be added in the future.
Change-Id: I4e831b26a2f41bf2f405c7576d5019bb898d4d1b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The 'next' event pointer was never used in the entire code base (always
NULL).
Change-Id: I75f999d3a2e10512d86edec1a5a46ef263e2635b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This is consistent with the other internal-only API headers.
Change-Id: I2c4748977d38a6c173311d26197d6273c168da7d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The definition of SPDK_UNREACHABLE uses the build-time DEBUG definition,
which is not available in the public API.
Change-Id: I1862c99fa5c85ccd3483f94e9c35de531da57f3c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make the public API clearer - if the user wants to allocate a
spdk_copy_task directly, they need to allocate spdk_copy_task_size()
bytes.
Also change the return type to size_t for consistency.
Change-Id: I0f3757056757c510421d680c5b4532edd9bc2561
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The SPDK_TRACELOG macro depends on a CONFIG setting (DEBUG), so it
should not be part of the public API.
Create a new include/spdk_internal directory for headers that should
only be used within SPDK, not exported for public use.
Change-Id: I39b90ce57da3270e735ba32210c4b3a3468c460b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
