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
This fix allows to use relaxed ordering feature where it is
supported. libibversb checks with the driver if relaxed ordering
access flag is supported and ignores it if not.
Experiments show that set by default it doesn't spoil performance but
allows to reach desired one on AMD EPYC systems. For example fio read
test (ConnectX-6, AMD EPYC 7763, two jobs, queue depth 32, block size
32K) can starve down to 6-7 GiB/s without it. Enabling this option
allows to get bandwidth more than 21 GiB/s.
Change-Id: I5983aed5d1f38ee7bec9c310597731c9a6a329da
Signed-off-by: Denis Nagorny <denisn@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14885
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>
SPDK NVMe RDMA initiator used the default PD per RDMA device. Default PD
may be changed when all QPs for the RDMA device are destroyed and created
again.
For multipath, the RDMA zero copy feature require the PD per RDMA device
to be persistent when all QPs for the RDMA device are destroyed and
created again.
Maintain such persistent PDs in this patch.
Add two APIs, spdk_rdma_get_pd() and spdk_rdma_put_pd().
In each call of two APIs, synchronize RDMA device list with
rdma_get_devices().
Context may be deleted anytime by rdma-core. To avoid such deletion,
hold the returned array by rdma_get_devices().
RDMA device has PD, context, ref. count, and removed flag. If context
is missing in rdma_get_devices(), set the removed flag to true. Then,
if the ref count becomes zero, free the PD and the RDMA device.
The ref. count of a RDMA device is incremented when spdk_rdma_get_pd()
is called and decremented when spdk_rdma_put_pd() is called.
To simplify synchronization, sort the returned array by
rdma_get_devices().
To avoid resource leakage, add destructor function and free all PDs
and related data at termination.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I093cb4ec2c7d8432642edfbffa270797ccf3e715
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13769
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
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>
Add a parameter which determines the owner of the
map - target or initiator. It allows to set different
access flags when creating Memory Regions
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Change-Id: I0016847fe116e193d0954db1c8e65066b4ff82bf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10283
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: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
These statistics can help to estimate efficiency of
Work Requests batching and show busy/idle polls ratio.
Send: the doorbell updates statistics for verbs
provider are incremented per each ibv_post_send call,
for mlx5_dv per each ibv_wr_complete call.
Recv: the doorbell updates statistics for both
providers are updated when either ibv_post_recv
or ibv_post_srq_recv functions are called.
Each qpair on initialization accepts an optional
pointer to shared statistics (nvmf/nvme poll groups).
If the pointer to statistics is not provided then
qpair allocates its own structure. That is done
to support cases when NVME RDMA initiator doesn't
use poll groups, so we can avoid checks that qpair
has statistics in IO path
Change-Id: I07dea603cb870b85ea23c42e8e2c4520b1c66252
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6293
Community-CI: Broadcom CI
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>
With min supported DPDK >= 19.11 there is no need
to check that the buffer can be split over
several Memory Regions so we can remove this check.
Keep assert that translation length is not less than
request as a sanity check.
Change-Id: If61e673ecde28bbda8eb57a2768085715bed141a
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5938
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This is the first commit in a series which aim is to
unify MRs registration and memory translation in
NVMEoF target and NVME initiator RDMA transports.
Next patches will add usage of new functions in
RDMA transports.
Change-Id: I93153d497fc4554ced14edbe545961b78bda91e3
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5121
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>
