A shallow copy will copy over the destination device only the
cluster allocated to the blob/lvol discarding those belonging
to the blob/lvol parent snapshot. blob/lvol must be read only.
Signed-off-by: Damiano Cipriani <damiano.cipriani@suse.com>
Change the bdev_raid examine procedure to read the superblock from the
examined base bdev. If a valid superblock is found, re-create the
raid_bdev from it.
Change-Id: I4bd589647a207a216ecf0dec9baf11c5d691f5d5
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
When creating the raid_bdev with enabled superblock option, write the
superblock to the base bdevs before bringing the array online.
Change-Id: I24659202ef3bbe6c87ca8603d514bd81660c9b41
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Refactor the code to use these new functions.
Change-Id: I21ee7e9a96f30fbd60106add5e8b071e86bf93c9
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Reads for raid1 bdevs are balanced. Algorithm tries to evenly distribute
load by sending read I/O to all base bdevs following round-robin, but
skiping base bdev that processed most data so far.
Signed-off-by: Krzysztof Smolinski <krzysztof.smolinski@intel.com>
Change-Id: I7d85411a6421bd7352031efb562ee95f2c612011
Support for multi-stripe requests is not used anymore so remove it.
Change-Id: I8f28817763452674c8a183c640800f3a4b4b3653
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Remove struct test_request_conf and instead do some basic reads on each
chunk. Also remove the io_info splitting because it is not used now.
Change-Id: I4b945b40598670f6ab84fb8066278877fee7fb75
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
This allows to simplify some code where raid_bdev and base_info are
needed.
Change-Id: I40395204fdcdd0487bdecec1cd47efb347f1310a
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Add functions to suspend and resume IO on all channels. This will be
used to safely change the device state in case of e.g. removing a base
bdev.
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I203c1899bde15101e0c2bc8da7a1066a2fee6dd2
When raid bdev is created with superblock parameter then all data on
this bdev should be shifted by some offset. Such space at the beginning
of bdev will be used to store on-disk raid metadata.
Signed-off-by: Krzysztof Smolinski <krzysztof.smolinski@intel.com>
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I2545a2b00a651ef5332ca1757da0110a63914a43
Introduction of superblock parameter for bdev_raid_create rpc. This
parameter determines whether raid bdev should be created with support
for on-disk metadata (support for raid on-disk metadata is going to be
implemented in the future).
Signed-off-by: Krzysztof Smolinski <krzysztof.smolinski@intel.com>
Change-Id: Ie8c64f837dd7eb3ba788b7c5d7bc98e8f1368ba7
Note that the prepare_for_reset flag in spdk_nvme_ctrlr is
still needed - it's just set now in the nvme_ctrlr_disconnect
path instead of this deprecated and now removed API.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0a6aa1c72767eb67a84b8928a986e06cbac88240
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17936
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
As the RBD bdev module does, the upper layer wants the reset command
to abort or complete all I/Os submitted before the reset command.
To satisfy this requirement, return all aborted I/Os by deleting I/O
qpairs to the upper layer without retry. To return all aborted I/Os
by deleting I/O qpairs, enable DNR for I/O qpairs. These I/O qpairs
are deleted and recreated. Hence, we do not have to disable DNR.
No more I/O comes at a reset I/O because the generic bdev layer already
blocks I/O submission. However, some I/Os may be queued for retry even
after deleting I/O qpairs. Hence, abort all queued I/Os for the bdev
before completing the reset I/O.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I9830026ef5f2b9c28aee92e6ce4018ed8541c808
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16836
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Previously, if a reconnect timer was registered when a reset request
came, the reset request failed with -EBUSY. However, this means the
reset request was queued for a long time until the reconnect timer was
expired.
When a reconnect timer is registered, reset is not actually in progress.
Hence, a new reset request can cancel the reconnect timer and can start
reconnection safely.
Add a unit test case to verify this change.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: Ied8dd0ad822d2fd6829d88cd56cb36bd4fad13f9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16823
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>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
This is mostly a wrapper around spdk_blob_is_degraded(), but it also
performs a NULL check on lvol->blob. Since an lvol without a blob cannot
perform IO, this condition returns true.
The two callers of spdk_blob_is_degraded() in vbdev_lvol.c have been
updated to use spdk_lvol_is_degraded().
Change-Id: I11dc682a26d971c8854aeab280c8199fced358c3
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17896
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
As same as copy command, calculation of max write_zeroes size for
fallback case includes division and is costly. The result is constant
for each bdev. Hence, we can calculate it only once and store it into
bdev->max_write_zeroes at bdev registration. However, in unit tests,
bdev->blocklen and bdev->md_len can be changed dynamically. Hence,
adjust bdev->max_write_zeroes for such changes.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I16e4980e7a283caa6c995a7dc61f7e77585d464e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17911
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The generic bdev layer has a fallback meachanism for the copy command
used when the backend bdev module does not support it. However, its max
size is limited. To remove the limitation, the fallback supports split by
using the unified split logic rather than following the write zeroes
command.
bdev_copy_should_split() and bdev_copy_split() use spdk_bdev_get_max_copy()
rather then referring bdev->max_copy to include the fallback case.
Then, spdk_bdev_copy_blocks() does the following.
If the copy size is large and should be split, use the generic split
logic regardless of whether copy is supported or not.
If copy is supported, send the copy request, or if copy is not
supported, emulate it using regulard read and write requests.
Add unit test case to verify this addition.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: Iaf51db56bb4b95f99a0ea7a0237d8fa8ae039a54
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17073
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Calculation of max copy size for fallback case includes division and is
costly. The result is constant for each bdev. Hence we can calculate it
only once and store it into bdev->max_copy at bdev registration.
Calculation of max copy size for fallback case is almost same as
calculation of max write zero size for fallback case. To reuse the
calculation, the helper function is named as bdev_get_max_write() and
has a num_bytes parameter.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: Iac83a1f16b908d8b36b51d9c51782de40313b6c8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17909
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
The following patches will change spdk_bdev_register() to access iobuf
and bdev's blocklen and blockcnt.
Hence, we have to configure these correctly for alltest cases.
Move ut_init/fini_bdev() up in a file. Add missing ut_init/fini_bdev()
and allocate/free_bdev() calls for some test cases. Add blockcnt and
blocklen to allocate_vbdev().
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: Iccbb1cfe4dcdc4496f15304b5362d76d5296607f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17908
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This introduces spdk_bdev_part_construct_ext(), which takes an options
structure as an optional parameter. The options structure has one
option: uuid.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: I5e9fdc8e88b78b303e60a0e721d7a74854ac37a9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17835
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
The IOs will now be retried after ENOMEM is received when doing memory
domain pull or appending an accel copy. The retries are performed using
the mechanism that's already in place for IOs completed with
SPDK_BDEV_IO_STATUS_NOMEM.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I284643bf9971338094e14617974f7511f745f24e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17761
Community-CI: Mellanox Build Bot
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>
Return the total number of memory domains supported by the blobstore and
any external snapshot bdev.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: I2f8afba6b31e689b8f942e2cf36906a0a30f38c8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16430
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This introduces an examine_config callback that triggers hotplug of
missing esnap devices.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: I5ced2ff26bfd393d2df4fd4718700be30eb48063
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16626
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
If an esnap clone is missing its snapshot the lvol should still open in
degraded mode. A degraded lvol will not have a bdev registered and as
such cannot perform any IO.
Change-Id: I736194650dfcf1eb78214c8896c31acc7a946b54
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16425
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Add RPC interfaces for creation of esnap clone lvols. This also
exercises esnap clone creation and various operations involving
snapshots and clones of esnap clones to ensure that bdev_get_bdevs
reports state correctly.
Change-Id: Ib87d01026ef6e45203c4d9451759885a7be02d87
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14978
Reviewed-by: Michal Berger <michal.berger@intel.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>
This adds the ability for create esnap clone lvol bdevs.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: Ifeef983430153d84d896d282fe914c6671283762
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16590
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Register an spdk_bs_esnap_dev_create callback when initializing or
loading an lvstore. This is the first of several commits required to add
support enable lvol bdevs to support external snapshots and esnap
clones.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: I35c4e61fdbe5b93d65b9374e0ad91cb7fb94d1f4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16589
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>
Add an interator that calls a callback for each clone of a snapshot
volume. This follows the typical pattern of stopping iteration when the
callback returns non-zero.
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: If88ad769b72a19ba0993303e89da107db8a6adfc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17545
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>
If an lvol is opened in degraded mode, keep track of the missing esnap
IDs and which lvols need them. A future commit will make use of this
information to bring lvols out of degraded mode when their external
snapshot device appears.
Change-Id: I55c16ad042a73e46e225369bfff2631958a2ed46
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16427
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
spdk_bdev_queue_io_wait() can only be used when one of bdev submission
functions returns ENOMEM (i.e. there are no more spdk_bdev_ios on that
IO channel). Using it in any other case, e.g. on spdk_accel_append_*()
returning ENOMEM, will most likely result in failure. Therefore, to
avoid that, the IOs are completed with NOMEM status relying on the bdev
layer to retry them.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ie0f03496e5d3180c481815b3f1b021e74ae2f46d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17319
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
It always returns 0 and any errors are reported in the callback. Making
it void simplifies error handling.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I0d4299a2789a688eae38d76de46d1baf27cbbd8f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17194
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Signed-off-by: Kuo Kan <kuox.kan@intel.com>
Change-Id: Ib3d33cefc78f543e157ea552ee88f0514e305054
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15795
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This provides the lib/lvol wrapper around blobstore's external
snapshots. Later commits make this work with vbdev_lvol.
The blobstore external snapshot implementation stores an opaque
identifier in an internal xattr. Lvstore uses this to store the
stringified UUID of the bdev that will act as the external snapshot.
This is used by the newly introduced spdk_lvol_create_esnap_clone() to
store the bdev UUID in the blob's metadata.
Change-Id: I58c7b32b656ad1d21a446e3b91e59e655efac7e4
Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14977
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
It fixes the following error under clang:
/usr/bin/ld.bfd: bdev_nvme_ut.o: in function `bdev_nvme_get_mdns_discovery_info':
/home/ksztyber/src/spdk/module/bdev/nvme/bdev_mdns_client.c:578: undefined reference to `spdk_jsonrpc_begin_result'
/usr/bin/ld.bfd: /home/ksztyber/src/spdk/module/bdev/nvme/bdev_mdns_client.c:599: undefined reference to `spdk_jsonrpc_end_result'
It probably works on gcc, because the bdev_nvme_get_mdns_discovery_info
isn't called anywhere in the unit test and gets optimized away.
Fixes#2950
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I2bb856afbc1a1a7e882dec72e4182ad9d3b9b24a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17260
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Now that all crypto operations are using interfaces that support memory
domains, bdev_crypto can report support for memory domains.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I13a128a599f6560197fed3405599c2a6bb609703
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17041
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
All these callbacks look identical now, so there's little point in
having three different functions doing the same thing.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I60d1426b5d2b20d924776699885e6a9dd176504a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17024
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
After changing to spdk_accel_append_*, this code is no longer necessary,
as accel operations are now executed by the base bdev/bdev layer.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I2e31249dfdf7abeee420744a5cc75b8273ecbad9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17023
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Similarly to reads, writes path is now also using the spdk_accel_append*
interface for performing encrypt operation.
Additionally, this patch also changes the way aux buffer is allocated -
spdk_bdev_io_get_aux_buf() was replaced with spdk_accel_get_buf(). This
ensures that the actual data buffer will be only allocated if it's
actually needed.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I3cd1d4f5753a95709d7b81de23d9227102a74261
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17022
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
The new spdk_accel_apend_decrypt() interface is now used for all read
requests for decrypting data. This makes it possible to chain decrypt
operations with other operations in a sequence. Support for encryption
in the write path will be added in the following patches.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I2f65044eeaf92232d839ddd166ae50889b3f386d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17021
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
This patch enables passing accel sequence for read requests. The
handling is pretty similar to writes, but the sequence is executed after
a request is completed by a bdev module.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I79fd7d4873265c81a9f4a66362634a1c4901d0c9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16975
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
It is now possible to submit a write request with a sequence of accel
operations that need to be executed before actually writing the data.
Such requests will be directly passed to a bdev module (so that it can
append subsequent operations to an accel sequence) if that bdev supports
accel sequences and the request doesn't need to be split. If either of
these conditions are not met, bdev layer will execute all the
accumulated accel operations before passing the request to a bdev
module.
The reason for not submitting split IOs with an accel sequence is that
we would need to split that accel sequence too. Currently, there's no
such functionality in accel, so we treat this case in the same way as if
the underlying bdev module didn't support accel sequences (it's executed
before bdev_io is split).
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I66c53b3a1a87a35ea2687292206c899f80aaed4a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16974
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
This channel will be used to execute accel operation sequences.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ied4bb57d14a50a923908ffb13ef4ba34ca65175c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16972
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Add default copy command support in bdev layer for backing devices that
does not support copy command.
Signed-off-by: Rui Chang <rui.chang@arm.com>
Change-Id: I5632e25544e95ac0c53ff91c4cd135dac53323ae
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16638
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
