Earlier refactoring enables us to not have to keep track of batch completions in
the batch struct as they're always used sequentially now so we can just add
the addresses from the start up to the number of elements in the batch.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I00cdcdec3376a1c32c9dab72c68fea868c1cb540
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4810
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>
Community-CI: Mellanox Build Bot
And to eliminate an artificial constraint on # of user descriptors.
The main idea here was to move from a single ring that covered all
user descriptors to a pre-allocated ring per pre-allocated batch.
In addition, the other major change here is in how we poll for
completions. We used to poll the batch rings then the main ring.
Now when commands are prepared their completion address is added to
a per channel list and the poller simply runs through that list
not caring which ring the completion address belongs too. This
simplifies the completion logic considerably and will avoid
polling locations that can't potentially have a completion.
Some minor rework was included as well, mainly getting rid of the
ring_ctrl struct as it didn't serve much of a purpose anyway and
with how things are setup now its easier to read with all the
elements in the channel struct.
Also, a change that came in while this was WIP needed a few fixes
to function correctly. Addressed those and moved them to a
helper function so we have one point of control for xlations.
Added support for NOP in cases where a batch is submitted with
only 1 descriptor.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ie201b28118823100e908e0d1b08e7c10bb8fa9e7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3654
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>
home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_submit_copy’:
/home/clear/spdk/lib/idxd/idxd.c:761:5: error: ‘src_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
761 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:761:26: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
761 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
LINK lvol_ut
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_submit_dualcast’:
/home/clear/spdk/lib/idxd/idxd.c:806:5: error: ‘src_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
806 | if (src_nbytes < nbytes || dst1_nbytes < nbytes || dst2_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:806:26: error: ‘dst1_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
806 | if (src_nbytes < nbytes || dst1_nbytes < nbytes || dst2_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/home/clear/spdk/lib/idxd/idxd.c:806:50: error: ‘dst2_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
806 | if (src_nbytes < nbytes || dst1_nbytes < nbytes || dst2_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_submit_compare’:
/home/clear/spdk/lib/idxd/idxd.c:845:5: error: ‘src1_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
845 | if (src1_nbytes < nbytes || src2_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:845:27: error: ‘src2_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
845 | if (src1_nbytes < nbytes || src2_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_submit_fill’:
/home/clear/spdk/lib/idxd/idxd.c:881:5: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
881 | if (dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_submit_crc32c’:
/home/clear/spdk/lib/idxd/idxd.c:919:5: error: ‘src_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
919 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:919:26: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
919 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
CC test/unit/lib/util/cpuset.c/cpuset_ut.o
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_batch_prep_copy’:
/home/clear/spdk/lib/idxd/idxd.c:1108:5: error: ‘src_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1108 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:1108:26: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1108 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_batch_prep_fill’:
/home/clear/spdk/lib/idxd/idxd.c:1142:5: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1142 | if (dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_batch_prep_crc32c’:
/home/clear/spdk/lib/idxd/idxd.c:1218:5: error: ‘src_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1218 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:1218:26: error: ‘dst_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1218 | if (src_nbytes < nbytes || dst_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
LINK iscsi_fuzz
/home/clear/spdk/lib/idxd/idxd.c: In function ‘spdk_idxd_batch_prep_compare’:
/home/clear/spdk/lib/idxd/idxd.c:1255:5: error: ‘src1_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1255 | if (src1_nbytes < nbytes || src2_nbytes < nbytes) {
| ^
/home/clear/spdk/lib/idxd/idxd.c:1255:27: error: ‘src2_nbytes’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
1255 | if (src1_nbytes < nbytes || src2_nbytes < nbytes) {
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: I7f1b01c04e4f7287616c590b652aa5cee26d2901
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4694
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
There is nothing left here, so remove it.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ib947d42bc577dbebb4650b1be885e05a80f8f8cf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4541
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Community-CI: Broadcom CI
This patch removes the string from register component.
Removed are all instances in libs or hardcoded in apps.
Starting with this patch literal passed to register,
serves as name for the flag.
All instances of SPDK_LOG_* were replaced with just *
in lowercase.
No actual name change for flags occur in this patch.
Affected are SPDK_LOG_REGISTER_COMPONENT() and
SPDK_*LOG() macros.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I002b232fde57ecf9c6777726b181fc0341f1bb17
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4495
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Mellanox Build Bot
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Broadcom CI
The WQ has not been provided a PASID so virtual addressing is not
supported. This worked previously because all test set ups had IOVA=VA.
Change-Id: I6b08714e246a0dc8d5bc0f31efa4b90b601c5b4c
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4558
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Mellanox Build Bot
Added to the framework as well as all 3 engines. Needed by apps
in the event that they have to fail following the creation of a
batch, allows them to tell the framework to forget about the batch
as they have no intent to send it.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Id94754ab1350e5a969a5fd2306bd59c38f0a0120
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3389
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: Ben Walker <benjamin.walker@intel.com>
Also one small bug fix w/compare in accel_perf as a result
of changes made in accel_perf sicne base compare was added.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Id8e67bd9de9cbd006ac148f4a77807cc3e8e662b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2958
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>
Community-CI: Mellanox Build Bot
This patch only includes the basic framework for batching and the
ability to batch one type of command, copy. Follow-on patches will
add the ability to batch other commands and include an example of
how to do so via the accel perf tool. SW engine support for batching
will also come in a future patch. Documentation will also be coming.
Batching allows the application to submit a list of independent
descriptors to DSA with one single "batch" descriptor. This is beneficial
when the application is in a position to have several operations ready
at once; batching saves the overhead of submitting each one separately.
The way batching works in SPDK is as follows:
1) The app gets a handle to a new batch with spdk_accel_batch_create()
2) The app uses that handle to prepare a command to be included in the
batch. For copy the command is spdk_accel_batch_prep_copy(). The
app many continue to prep commands for the batch up to the max via
calling spdk_accel_batch_get_max()
3) The app then submits the batch with spdk_accel_batch_submit()
4) The callback provided for each command in the batch will be called as
they complete, the callback provided to the batch submit itself will be
called then the entire batch is done.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I4102e9291fe59a245cedde6888f42a923b6dbafd
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2248
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>
Dual-cast copies the same source to two separate destination buffers.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Icadae34a75c35e2db672a193287b147416012a5a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2129
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Mellanox Build Bot
Prior to adding more operations, make this a bit more efficient.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I02b864f998800c25076233183840bba8bff92196
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2069
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>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Docs, RPC, unit tests, etc., will follow. Notes:
* The current implementation will only work with VFIO.
* The current implementation supports only the existing accel
framework API. The API will be expanded for DSA exclusive features
in a subsequent patch.
* SW is required to manage flow control, to not over-run the work queues.
This is provided in the accel plug-in module. The upper layers use public
API to manage this.
* As we need to support any number of channels (we can't limit ourselves
to the number of work queues) we need to dynamically size/resize our
per channel descriptor rings based on the number of current channels. This
is done from upper layers via public API into the lib.
* As channels are created, the total number of work queue slots is divided
across the channels evenly. Same thing when they are destroyed, remaining
channels will see the ring sizes increase. This is done from upper layers
via public API into the lib.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ifaa39935107206a2d990cec992854675e5502057
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1722
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Module, etc., will follow. Notes:
* IDXD is an Intel silicon feature available in future Intel CPUs.
Initial development is being done on a simulator. Once HW is
available and the code fully tested the experimental label will be
lifted. Spec can be found here: https://software.intel.com/en-us/download/intel-data-streaming-accelerator-preliminary-architecture-specification
* The current implementation will only work with VFIO.
* DSA has a number of engines that can be grouped based on application
need such as type of memory being served or QoS. Engines are processing
units and are assigned to groups. Work queues are on device structures
that act as front-end groups for queueing descriptors. Full details on
what is configurable & how will come in later doc patches.
* There is a finite number of work queue slots that are divided amongst
the number of desired work queues in some fashion (ie evenly).
* SW (outside of the idxd lib) is required to manage flow control, to not
over-run the work queues.This is provided in the accel plug-in module.
The upper layers use public API to manage this.
* Work queue submissions are done with a 64 byte atomic instruction
* The design here creates a set of descriptor rings per channel that match
the size of the work queues. Then, an spdk_bit_array is used to make sure
we don't overrun a queue. If there are not slots available, the operation
is put on a linked list to be retried later from the poller.
* As we need to support any number of channels (we can't limit ourselves
to the number of work queues) we need to dynamically size/resize our
per channel descriptor rings based on the number of current channels. This
is done from upper layers via public API into the lib.
* As channels are created, the total number of work queue slots is divided
across the channels evenly. Same thing when they are destroyed, remaining
channels with see the ring sizes increase. This is done from upper layers
via public API into the lib.
* The sim has 64 total work queue entries (WQE) that get dolled out to the
work queues (WQ) evenly.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I899bbeda3cef3db05bea4197b8757e89dddb579d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1809
Community-CI: Mellanox Build Bot
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: Vitaliy Mysak <vitaliy.mysak@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
