vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dma

vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dmadev in asynchronous data path.

Signed-off-by: Jiayu Hu <[email protected]>
Signed-off-by: Sunil Pai G <[email protected]>
Tested-by: Yvonne Yang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples: fix pkg-config override

Move pkg-config override to beginning in the Makefile to allow
use PKGCONF variable to detect the libdpdk availability.

Fixes: fda34680eb9a ("examples: remove lega

examples: fix pkg-config override

Move pkg-config override to beginning in the Makefile to allow
use PKGCONF variable to detect the libdpdk availability.

Fixes: fda34680eb9a ("examples: remove legacy sections of makefiles")
Cc: [email protected]

Signed-off-by: Jerin Jacob <[email protected]>
Acked-by: Bruce Richardson <[email protected]>

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examples: warn about broken pkg-config

Since the examples are designed to be built by end-users using Make, we
can detect and warn about broken pkg-config on the user's system as part
of the build p

examples: warn about broken pkg-config

Since the examples are designed to be built by end-users using Make, we
can detect and warn about broken pkg-config on the user's system as part
of the build process.

Signed-off-by: Bruce Richardson <[email protected]>

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examples/vhost: fix ioat dependency

Fix vhost-switch compiling issue when ioat dependency is missing.
Change 'RTE_x86' check into 'RTE_RAW_IOAT' check in meson build file.
Use 'RTE_RAW_IOAT' to cont

examples/vhost: fix ioat dependency

Fix vhost-switch compiling issue when ioat dependency is missing.
Change 'RTE_x86' check into 'RTE_RAW_IOAT' check in meson build file.
Use 'RTE_RAW_IOAT' to control conditional compiling in source file.
Clean some codes.

Fixes: abec60e7115d ("examples/vhost: support vhost async data path")
Fixes: 3a04ecb21420 ("examples/vhost: add async vhost args parsing")

Reported-by: David Marchand <[email protected]>
Signed-off-by: Cheng Jiang <[email protected]>
Acked-by: Bruce Richardson <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>
Tested-by: David Marchand <[email protected]>

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examples: remove legacy sections of makefiles

The example app makefiles contained sections using the legacy method of
compiling with make. These are no longer needed, and are removed,
leaving only t

examples: remove legacy sections of makefiles

The example app makefiles contained sections using the legacy method of
compiling with make. These are no longer needed, and are removed,
leaving only the section that uses pkg-config for the make build.

Signed-off-by: Ciara Power <[email protected]>
Acked-by: Nicolas Chautru <[email protected]>

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build/pkg-config: improve static linking flags

Rather than setting -Bstatic in the linker flags when doing a static link,
and then having to explicitly set -Bdynamic again afterwards, we can update

build/pkg-config: improve static linking flags

Rather than setting -Bstatic in the linker flags when doing a static link,
and then having to explicitly set -Bdynamic again afterwards, we can update
the pkg-config file to use -l:libfoo.a syntax to explicitly refer to the
static library in question. Since this syntax is not supported by meson's
pkg-config module directly, we can post-process the .pc files instead to
adjust them.

Once done, we can simplify the examples' makefiles and the docs by removing
the explicit static flag.

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Luca Boccassi <[email protected]>
Acked-by: Sunil Pai G <[email protected]>
Signed-off-by: Thomas Monjalon <[email protected]>

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examples: hide error for missing pkg-config path flag

Some versions of pkg-config don't support the --path flag, which is not a
fatal error when building the apps. Without the flag, the makefile jus

examples: hide error for missing pkg-config path flag

Some versions of pkg-config don't support the --path flag, which is not a
fatal error when building the apps. Without the flag, the makefile just
cannot track the .pc file of DPDK as a dependency of the build. Therefore,
we can ignore the error and suppress it by redirecting to /dev/null the
stderr from that call to pkg-config.

Fixes: 22119c4591a0 ("examples: use pkg-config in makefiles")
Cc: [email protected]

Signed-off-by: Bruce Richardson <[email protected]>
Tested-by: Ferruh Yigit <[email protected]>

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examples: fix build with old pkg-config

Not all versions of pkg-config in distros have support for the
--define-prefix flag [1], causing errors when building examples manually or
with test-meson-bui

examples: fix build with old pkg-config

Not all versions of pkg-config in distros have support for the
--define-prefix flag [1], causing errors when building examples manually or
with test-meson-builds.sh script [2].

For the former case, we need to remove the hard-coded use of the flag in
the Makefiles.

For the latter case, the flag is necessary for builds to succeed, so we
skip the tests when it's not present, passing it as part of the pkg-config
command if it is supported.

[1]
CentOS Linux release 7.7.1908 (Core)
pkg-config version 0.27.1

[2]
## Building cmdline
Unknown option --define-prefix
gmake: Entering directory
`...ild-x86-default/install-root/usr/local/share/dpdk/examples/cmdline'
rm -f build/cmdline build/cmdline-static build/cmdline-shared
test -d build && rmdir -p build || true
Unknown option --define-prefix
Unknown option --define-prefix
gcc -O3 main.c commands.c parse_obj_list.c -o build/cmdline-shared
main.c:14:28: fatal error: cmdline_rdline.h: No such file or directory

Fixes: ca9268529d2b ("examples: support relocated DPDK install")
Fixes: 7f80a2102bbb ("devtools: test pkg-config file")
Cc: [email protected]

Reported-by: Ferruh Yigit <[email protected]>
Signed-off-by: Bruce Richardson <[email protected]>
Tested-by: Ferruh Yigit <[email protected]>

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examples: fix pkg-config detection with older make

Make versions before 4.2 did not have support for the .SHELLSTATUS
variable, so use another method to detect shell success.

Fixes: 22119c4591a0 ("

examples: fix pkg-config detection with older make

Make versions before 4.2 did not have support for the .SHELLSTATUS
variable, so use another method to detect shell success.

Fixes: 22119c4591a0 ("examples: use pkg-config in makefiles")
Cc: [email protected]

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Luca Boccassi <[email protected]>

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examples: support relocated DPDK install

For testing of DPDK, we want to override the prefix given by the
pkg-config file, so that we can get correct paths for DPDK installed
in an unusual location.

examples: support relocated DPDK install

For testing of DPDK, we want to override the prefix given by the
pkg-config file, so that we can get correct paths for DPDK installed
in an unusual location.

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Luca Boccassi <[email protected]>

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examples: fix make clean when using pkg-config

The "make clean" command had a number of issues:
- the "--ignore-fail-on-non-empty" flag is not present on BSD
- the call to remove the build folder wo

examples: fix make clean when using pkg-config

The "make clean" command had a number of issues:
- the "--ignore-fail-on-non-empty" flag is not present on BSD
- the call to remove the build folder would fail if there was no build
folder present.

These are fixed by only removing the build folder if it exists, and by
using -p flag to rmdir in place of --ignore-fail-on-non-empty

Fixes: 22119c4591a0 ("examples: use pkg-config in makefiles")
Cc: [email protected]

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Luca Boccassi <[email protected]>

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examples: detect default build directory

Most examples have in their makefiles a default RTE_TARGET directory to be
used in case RTE_TARGET is not set. Rather than just using a hard-coded
default, w

examples: detect default build directory

Most examples have in their makefiles a default RTE_TARGET directory to be
used in case RTE_TARGET is not set. Rather than just using a hard-coded
default, we can instead detect what the build directory is relative to
RTE_SDK directory.

This fixes a potential issue for anyone who continues to build using
"make install T=x86_64-native-linuxapp-gcc" and skips setting RTE_TARGET
explicitly, instead relying on the fact that they were building in a
directory which corresponded to the example default path - which was
changed to "x86_64-native-linux-gcc" by commit 218c4e68c1d9 ("mk: use
linux and freebsd in config names").

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

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mk: use linux and freebsd in config names

Rather than using linuxapp and bsdapp everywhere, we can change things to
use the, more readable, terms "linux" and "freebsd" in our build configs.
Rather t

mk: use linux and freebsd in config names

Rather than using linuxapp and bsdapp everywhere, we can change things to
use the, more readable, terms "linux" and "freebsd" in our build configs.
Rather than renaming the configs we can just duplicate the existing ones
with the new names using symlinks, and use the new names exclusively
internally. ["make showconfigs" also only shows the new names to keep the
list short] The result is that backward compatibility is kept fully but any
new builds or development can be done using the newer names, i.e. both
"make config T=x86_64-native-linuxapp-gcc" and "T=x86_64-native-linux-gcc"
work.

Signed-off-by: Bruce Richardson <[email protected]>

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build/linux: rename macro from LINUXAPP to LINUX

Rename the macro to make things shorter and more comprehensible. For
both meson and make builds, keep the old macro around for backward
compatibility

build/linux: rename macro from LINUXAPP to LINUX

Rename the macro to make things shorter and more comprehensible. For
both meson and make builds, keep the old macro around for backward
compatibility.

Signed-off-by: Bruce Richardson <[email protected]>

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mk: build with _GNU_SOURCE defined by default

We use _GNU_SOURCE all over the place, but often times we miss
defining it, resulting in broken builds on musl. Rather than
fixing every library's and d

mk: build with _GNU_SOURCE defined by default

We use _GNU_SOURCE all over the place, but often times we miss
defining it, resulting in broken builds on musl. Rather than
fixing every library's and driver's and application's makefile,
fix it by simply defining _GNU_SOURCE by default for all
builds.

Remove all usages of _GNU_SOURCE in source files and makefiles,
and also fixup a couple of instances of using __USE_GNU instead
of _GNU_SOURCE.

Signed-off-by: Anatoly Burakov <[email protected]>

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examples: make Linux environment check consistent

Some Makefiles are using CONFIG_RTE_EXEC_ENV and others
are using CONFIG_RTE_EXEC_ENV_LINUXAPP.
Use the latter one for consistency.
We could remove

examples: make Linux environment check consistent

Some Makefiles are using CONFIG_RTE_EXEC_ENV and others
are using CONFIG_RTE_EXEC_ENV_LINUXAPP.
Use the latter one for consistency.
We could remove CONFIG_RTE_EXEC_ENV later if considered useless.

Signed-off-by: Thomas Monjalon <[email protected]>

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fix ethdev ports enumeration

Some DPDK applications wrongly assume these requirements:
- no hotplug, i.e. ports are never detached
- all allocated ports are available to the application

Suc

fix ethdev ports enumeration

Some DPDK applications wrongly assume these requirements:
- no hotplug, i.e. ports are never detached
- all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

There are three consequences when using such wrong design:
- new ports having an index higher than the port count won't be seen
- old ports being detached (RTE_ETH_DEV_UNUSED) can be seen as ghosts
- failsafe sub-devices (RTE_ETH_DEV_DEFERRED) will be seen by the application

Such mistake will be less common with growing hotplug awareness.
All applications and examples inside this repository - except testpmd -
must be fixed to use the iterator RTE_ETH_FOREACH_DEV.

Signed-off-by: Thomas Monjalon <[email protected]>

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examples: enable linking both static and shared

Since the DPDK build now includes both static and shared libraries, we need
a new way to enable building the examples using either method from the one

examples: enable linking both static and shared

Since the DPDK build now includes both static and shared libraries, we need
a new way to enable building the examples using either method from the one
installation. To do this, we add in a default "shared" target, and a
separate "static" target which links in the DPDK static libraries. In both
cases, the final application name is symlinked to the last-built static or
shared target, with both binaries able to co-exist in the build directory.

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Luca Boccassi <[email protected]>

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examples: use pkg-config in makefiles

Change the example app Makefiles to query if DPDK is installed and
registered using pkg-config. If so, build directly using pkg-config info,
otherwise fall back

examples: use pkg-config in makefiles

Change the example app Makefiles to query if DPDK is installed and
registered using pkg-config. If so, build directly using pkg-config info,
otherwise fall back to using the original build system with RTE_SDK and
RTE_TARGET

This commit changes the makefiles for the basic examples, i.e. those which
do not have multiple subdirectories underneath the main examples dir.
Examples not covered are:

* ethtool
* multi_process
* performance-thread
* quota_watermark
* netmap_compat
* server_node_efd
* vm_power_manager

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: Luca Boccassi <[email protected]>

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examples: put app name and sources at top of makefiles

Reorder the text in the makefiles, so that the app name and the source
files are listed first. This then will allow them to be shared later in

examples: put app name and sources at top of makefiles

Reorder the text in the makefiles, so that the app name and the source
files are listed first. This then will allow them to be shared later in a
combined makefile building with pkg-config and RTE_SDK-based build system.

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: Luca Boccassi <[email protected]>

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examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <bruce.richardson@i

examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <[email protected]>

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fix typos using codespell utility

Fixing typos across dpdk source code using codespell utility.
Skipped the ethdev driver's base code fixes to keep the base
code intact.

Signed-off-by: Jerin Jacob

fix typos using codespell utility

Fixing typos across dpdk source code using codespell utility.
Skipped the ethdev driver's base code fixes to keep the base
code intact.

Signed-off-by: Jerin Jacob <[email protected]>
Acked-by: John McNamara <[email protected]>

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examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simpl

examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simple vhost-user net driver,
mainly for demonstrating how to use those generic vhost APIs.

And when the --builtin-net-driver option is used, the example virtio-net
driver code will be invoked, instead of the one provided from the vhost
library.

Signed-off-by: Yuanhan Liu <[email protected]>

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eal: set name to threads

This patch adds support for pthread_setname_np on Linux and
pthread_set_name_np on FreeBSD.

Signed-off-by: Ravi Kerur <[email protected]>
Acked-by: Stephen Hemminger <stephe

eal: set name to threads

This patch adds support for pthread_setname_np on Linux and
pthread_set_name_np on FreeBSD.

Signed-off-by: Ravi Kerur <[email protected]>
Acked-by: Stephen Hemminger <[email protected]>
[Thomas: add name in tep_termination example]

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examples/vhost: add new example based on lib

Signed-off-by: Huawei Xie <[email protected]>
Acked-by: Changchun Ouyang <[email protected]>
[Thomas: clean makefile and add in examples/Make

examples/vhost: add new example based on lib

Signed-off-by: Huawei Xie <[email protected]>
Acked-by: Changchun Ouyang <[email protected]>
[Thomas: clean makefile and add in examples/Makefile]

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