2439 Commits

Author SHA1 Message Date
Nick Connolly
141492be99 eal/windows: fix linkage with MinGW
Linking with the 'pci' driver when building with MinGW on
Windows fails with undefined symbol 'GUID_DEVCLASS_NET'.
This occurs because devguid.h is included in rte_windows.h
before INITGUID is defined.

Move the include of devguid.h after the definition of INITGUID.

Fixes: b762221ac24f ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
Reviewed-by: Tal Shnaiderman <talshn@nvidia.com>
2020-11-22 18:55:01 +01:00
Yunjian Wang
a99d2521a3 malloc: fix style in free list index computation
Cleanup code style issue reported by kernel checkpatch. As follows:
  * ERROR:CODE_INDENT: code indent should use tabs where possible
  * ERROR:SPACING: spaces required around that '?' (ctx:VxE)
  * WARNING:INDENTED_LABEL: labels should not be indented

Fixes: b0489e7bca2f ("malloc: fix linear complexity")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-11-22 18:52:07 +01:00
Tal Shnaiderman
ba5b133e33 eal/windows: remove definition of ETOOMANYREFS
The definition of ETOOMANYREFS is reverted as it breaks build of
external applications already defining it.

Fixes: c917b54b0c74 ("eal/windows: add definition of ETOOMANYREFS")

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Reviewed-by: Nick Connolly <nick.connolly@mayadata.io>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2020-11-20 15:59:02 +01:00
Tal Shnaiderman
c917b54b0c eal/windows: add definition of ETOOMANYREFS
The ETOOMANYREFS errno was missing from the Windows build.
It is used in initialization of flow error structures.

It is defined with the same error code used by WSAETOOMANYREFS.

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2020-11-16 00:14:07 +01:00
Stephen Hemminger
db27370b57 eal: replace blacklist/whitelist options
Replace -w / --pci-whitelist with -a / --allow options
and --pci-blacklist with --block.
The -b short option remains unchanged.

Allow the old options for now, but print a nag
warning since old options are deprecated.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-16 00:11:22 +01:00
Stephen Hemminger
a65a34a85e eal: replace usage of blacklist/whitelist in enums
Rename the enum values in the EAL include files.
As a backward compatible temporary migration tool, define
a replacement mapping for old values.

The old names relating to blacklist and whitelist are replaced
by block list and allow list, but applications may be using the
older compatibility macros, marked as deprecated.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Luca Boccassi <bluca@debian.org>
Acked-by: Gaetan Rivet <grive@u256.net>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-16 00:11:22 +01:00
Ruifeng Wang
8fce34cd0a eal/arm: fix clang build of native target
When doing Clang build with '-mcpu=native' on N1 platform, build failed
with:
../lib/librte_eal/arm/include/rte_atomic_64.h:76:39:
	error: instruction requires: lse
__ATOMIC128_CAS_OP(__cas_128_release, "caspl")

This is because native detection for Neoverse N1 was added in Clang-11.
Prior version of Clang's assembler doesn't know LSE support on hardware.
Fixed this for Clang earlier than version 11 by specifying architecture
for assembler.
Referred to [1] for this fix.

Fixes: 7e2c3e17fe2c ("eal/arm64: add 128-bit atomic compare exchange")
Cc: stable@dpdk.org

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e0d5896bd356cd577f9710a02d7a474cdf58426b

Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
2020-11-13 10:30:48 +01:00
David Christensen
2d0a972cd6 vfio: use static window sizing for sPAPR IOMMU
The SPAPR IOMMU requires that a DMA window size be defined before memory
can be mapped for DMA. Current code dynamically modifies the DMA window
size in response to every new memory allocation which is potentially
dangerous because all existing mappings need to be unmapped/remapped in
order to resize the DMA window, leaving hardware holding IOVA addresses
that are temporarily unmapped.  The new SPAPR code statically assigns
the DMA window size on first use, using the largest physical memory
memory address when IOVA=PA and the highest existing memseg virtual
address when IOVA=VA.

Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-11-13 09:35:18 +01:00
Olivier Matz
f8e90bcc1d eal: fix MCS lock and ticketlock headers install
Add missing arch-specific headers in meson.build.

Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: David Marchand <david.marchand@redhat.com>
Acked-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
2020-11-05 12:08:19 +01:00
Anatoly Burakov
fc61d9a89b eal: fix power intrinsics API description
Currently, the intrinsics documentation refers to `rte_cpu_get_features`
as a check for whether these intrinsics are supported at runtime. This
is incorrect, because actually the user should use the
`rte_cpu_get_intrinsics_support` API to do said check. Fix the typo.

Fixes: 128021421256 ("eal: add intrinsics support check infrastructure")

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Liang Ma <liang.j.ma@intel.com>
2020-11-03 22:45:24 +01:00
Dmitry Kozlyuk
bd117d62a6 eal/windows: fix deadlock when setting alarm
Windows alarms are both armed and executed from the interrupt thread.
rte_eal_alarm_set() dispatched alarm-arming code to that thread and
waited for its completion via a spinlock. However, if called from alarm
callback (i.e. from the interrupt thread), this caused a deadlock,
because arming could not be run until its dispatcher exits, but it could
only exit after it finished waiting for arming to complete.

Call arming code directly when running in the interrupt thread.

Fixes: f4cbdbc7fbd2 ("eal/windows: implement alarm API")

Reported-by: Pallavi Kadam <pallavi.kadam@intel.com>
Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Pallavi Kadam <pallavi.kadam@intel.com>
2020-11-03 22:45:02 +01:00
Pallavi Kadam
a2b0471739 eal/windows: allow running as non-admin
Currently, since there is no runtime directory set, the code tries to
create a file in C:\ which is only writable with administrator
privileges. As a result, if the user is not admin, the application will
fail.
So, forcing no_shconf to 1 to prevent the code having to create files in
the runtime directory.

Suggested-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-11-03 22:45:02 +01:00
Thomas Monjalon
905592f4c4 kni: move header file from EAL
Since the kernel module is not part of EAL anymore,
there is no need to have the common KNI header file in EAL.
The file rte_kni_common.h is moved to librte_kni.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-10-31 16:13:10 +01:00
David Marchand
f4d2ad3aa9 trace: make CTF metadata prettier
This is simply a cosmetic change.

Before:
event {
    id = 17;
    name = "lib.eal.alarm.set";
    fields := struct {
        uint64_t us;uintptr_t cb_fn;uintptr_t cb_arg;int32_t rc;
    };
};

After:
event {
    id = 17;
    name = "lib.eal.alarm.set";
    fields := struct {
        uint64_t us;
        uintptr_t cb_fn;
        uintptr_t cb_arg;
        int32_t rc;
    };
};

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Sunil Kumar Kori <skori@mavell.com>
2020-10-29 22:49:22 +01:00
David Marchand
fd43b50113 trace: fix metadata dump
The ctf metadata is written to the metadata file without any check for
length, so this string must be null terminated.

Fixes: f1a099f5b1f1 ("trace: create CTF TDSL metadata in memory")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Sunil Kumar Kori <skori@mavell.com>
2020-10-29 22:49:22 +01:00
David Marchand
721cfcaf04 trace: remove size limit on CTF event description
Rework registration so that it uses dynamic allocations and has no size
limit.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Sunil Kumar Kori <skori@mavell.com>
2020-10-29 22:49:22 +01:00
David Marchand
d992fa555d trace: fixup CTF event description at registration
CTF event description is currently built by appending all fields in a
single string at trace point registration.
When dumping the metadata, this string is split again and inspected to
fixup reserved keywords and special tokens like "." or "->".

Move this fixup per field at trace point registration time so that there
is no need for inspecting / string parsing when dumping metadata.
Use dynamic allocations to remove an artificial size limit on the CTF
event description manipulations.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Sunil Kumar Kori <skori@mavell.com>
2020-10-29 22:49:22 +01:00
Liang Ma
1280214212 eal: add intrinsics support check infrastructure
Currently, it is not possible to check support for intrinsics that
are platform-specific, cannot be abstracted in a generic way, or do not
have support on all architectures. The CPUID flags can be used to some
extent, but they are only defined for their platform, while intrinsics
will be available to all code as they are in generic headers.

This patch introduces infrastructure to check support for certain
platform-specific intrinsics, and adds support for checking support for
IA power management-related intrinsics for UMWAIT/UMONITOR and TPAUSE.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Acked-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-10-29 22:46:31 +01:00
Liang Ma
cda57d9388 eal: add power management intrinsics
Add two new power management intrinsics, and provide an implementation
in eal/x86 based on UMONITOR/UMWAIT instructions. The instructions
are implemented as raw byte opcodes because there is not yet widespread
compiler support for these instructions.

The power management instructions provide an architecture-specific
function to either wait until a specified TSC timestamp is reached, or
optionally wait until either a TSC timestamp is reached or a memory
location is written to. The monitor function also provides an optional
comparison, to avoid sleeping when the expected write has already
happened, and no more writes are expected.

For more details, please refer to Intel(R) 64 and IA-32 Architectures
Software Developer's Manual, Volume 2.

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
2020-10-29 22:46:31 +01:00
Liang Ma
e448a5a9ed eal/x86: add CPU flag for WAITPKG
Add a new CPUID flag indicating processor support for UMONITOR/UMWAIT
and TPAUSE instructions instruction.

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2020-10-29 22:46:27 +01:00
Yunjian Wang
39e2961a09 eal: fix interrupt trace point
This patch fixes (dereference after null check) coverity issue.
For this reason, we should add null check at the beginning of the
function and return error directly if the 'intr_handle' is null.

Coverity issue: 357695, 357751
Fixes: 05c4105738d8 ("trace: add interrupt tracepoints")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Harman Kalra <hkalra@marvell.com>
2020-10-29 16:30:49 +01:00
David Marchand
c3afd1cba6 service: separate statistics dump and reset
No functional change intended.

service_dump_calls_per_lcore() was always called with a 0 reset flag.
service_dump_one() was called with either a 0 reset flag or a NULL
FILE pointer.

We can split the code for readability sake.

Note: there is no path to resetting calls_per_service[], this is left as
is.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2020-10-27 13:21:01 +01:00
Thomas Monjalon
19653eed40 remove config prefix used with make
The config options CONFIG_RTE_* are simple RTE_* defines with meson.
Now that make support is dropped, update the names in logs and comments.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 19:25:21 +02:00
Thomas Monjalon
a796c922d2 mem: fix config name in error logs
When introducing the new option CONFIG_RTE_MAX_MEM_MB_PER_TYPE,
some logs were referencing a wrong name: CONFIG_RTE_MAX_MEM_PER_TYPE.

Fixes: 66cc45e293ed ("mem: replace memseg with memseg lists")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 19:25:21 +02:00
Thomas Monjalon
4d8d68abdc eal: remove comment about old partition option
The main initialization function (rte_eal_init) has documentation
about a feature from another era: memory partition.

Curiously, this lost treasure is found only now,
suggesting there may be other interesting things to discover in the doc.
To all aspiring Indiana Jones: the hunt is open!

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 19:25:21 +02:00
Yunjian Wang
1cdb89c177 eal: report duplicate device event callback
We should return an error value, when the callback is already exist.

Fixes: a753e53d517b ("eal: add device event monitor framework")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 13:35:56 +02:00
Yunjian Wang
3f01891391 eal: return errors on device event callback unregister
Fix return value, using -EAGAIN instead of 0 when the callback is busy
and using -ENOENT instead of 0 when the callback is not found.

Fixes: a753e53d517b ("eal: add device event monitor framework")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 13:35:50 +02:00
Yunjian Wang
c78bd27d4b eal: fix leak on device event callback unregister
The event_cb->dev_name is not freed when freeing event_cb,
and this causes a memory leak.

Fixes: a753e53d517b ("eal: add device event monitor framework")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-23 13:35:48 +02:00
David Marchand
6b3848e211 build: fix version map file references in documentation
Fixes: 63b3907833d8 ("build: remove library name from version map file name")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-10-22 14:11:49 +02:00
Yunjian Wang
01072d52af eal/linux: fix memory leak in uevent handling
When the memory for uevent.devname is allocated in dev_uev_parse(). It
is not freed when parse the subsystem layer fails in dev_uev_parse().
Before return, it is also not freed in dev_uev_handler(). These cause a
memory leak.

Fixes: 0d0f478d0483 ("eal/linux: add uevent parse and process")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-10-20 16:01:37 +02:00
Tal Shnaiderman
ddfaa718b7 eal/windows: add missing stdint include
Following the addition of the in_addr/in6_addr structs
to in.h the header file must have stdint.h included
for the definitions of the uint8_t/uint32_t types used
within the new structs.

Not having it could results in the following errors
in places where in.h is included:

in.h:30:2: error: unknown type name 'uint32_t'
        uint32_t s_addr;

in.h:34:2: error: unknown type name 'uint8_t'
        uint8_t s6_addr[16];

Fixes: f40a74cfcf0 ("eal/windows: improve compatibility networking headers")

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2020-10-20 13:46:32 +02:00
Stephen Hemminger
cb056611a8 eal: rename lcore master and slave
Replace master lcore with main lcore and
replace slave lcore with worker lcore.

Keep the old functions and macros but mark them as deprecated
for this release.

The "--master-lcore" command line option is also deprecated
and any usage will print a warning and use "--main-lcore"
as replacement.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-10-20 13:17:08 +02:00
Stephen Hemminger
0303192581 eal: add macro to mark macros as deprecated
Add a macro that causes GCC and CLANG to emit a warning when
a deprecated macro is used.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-10-20 11:42:29 +02:00
Stephen Hemminger
5b183ff611 ipc: fix spelling in log and comment
Fixes spelling in comment and message about thread error.
Found while looking at checkpatch complaints about "thead"

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-10-19 23:25:06 +02:00
Bruce Richardson
a8d0d473a0 build: replace use of old build macros
Use the newer macros defined by meson in all DPDK source code, to ensure
there are no errors when the old non-standard macros are removed.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Rosen Xu <rosen.xu@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-10-19 22:15:44 +02:00
Bruce Richardson
63b3907833 build: remove library name from version map file name
Since each version map file is contained in the subdirectory of the library
it refers to, there is no need to include the library name in the filename.
This makes things simpler in case of library renaming.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Rosen Xu <rosen.xu@intel.com>
2020-10-19 22:13:59 +02:00
Ciara Power
580af30dd6 eal: control max SIMD bitwidth
This patch adds a max SIMD bitwidth EAL configuration. The API allows
for an app to set this value. It can also be set using EAL argument
--force-max-simd-bitwidth, which will lock the value and override any
modifications made by the app.

Each arch has a define for the default SIMD bitwidth value, this is used
on EAL init to set the config max SIMD bitwidth.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-10-19 16:45:02 +02:00
Stephen Hemminger
17b347dab7 malloc: add alloc_size attribute to functions
By using the alloc_size() attribute the compiler can optimize
better and detect errors at compile time.

For example, Gcc will fail one of the invalid allocation examples
in app/test/test_malloc.c because the allocation is outside the
limits of memory.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-10-19 16:25:43 +02:00
Stephen Hemminger
bb548625c6 eal/linux: add function to allow interruptible epoll
The existing definition of rte_epoll_wait retries if interrupted
by a signal. This behavior makes it hard to use rte_epoll_wait
for applications that want to use signals do do things like
exit polling loop and shutdown.

Since changing existing semantic might break applications, add
a new rte_epoll_wait_interruptible() function that does the
same thing as rte_epoll_wait but will return -1 and errno of EINTR
if it receives a signal.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Harman Kalra <hkalra@marvell.com>
2020-10-19 12:17:25 +02:00
Bruce Richardson
e8a83681f4 eal/x86: fix memcpy AVX-512 enablement
When testing on some x86 platforms, code compiled with meson was observed
running at a different power-license level to that compiled with make. This
is due to the fact that meson auto-detects the instruction sets available
on the system and enabled AVX512 rte_memcpy when AVX512 was available,
while on make, a build time AVX-512 flag needed to be explicitly set to
enable that AVX512 rte_memcpy code path.

In the absence of runtime path selection for rte_memcpy - which is
complicated by it being a static inline function in a header file - we can
fix this behaviour regression by similarly having a build-time option which
must be set to enable the AVX-512 memcpy path.

Fixes: a25a650be5f0 ("build: add infrastructure for meson and ninja builds")
Fixes: 3e1bb55fd6ef ("build/x86: add SSE flags")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Yingya Han <yingyax.han@intel.com>
2020-10-17 12:22:01 +02:00
Omkar Maslekar
4ffc2276e2 eal: add cache line demotion API
rte_cldemote is similar to a prefetch hint - in reverse.
On x86, cldemote(addr) enables software to hint to hardware that line is
likely to be shared. This is quite useful in core-to-core communications
where cache-line is likely to be shared.
ARM and PPC implementation is provided with NOP and can be added if any
equivalent instructions could be used for implementation on those
architectures.

Signed-off-by: Omkar Maslekar <omkar.maslekar@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2020-10-16 14:11:45 +02:00
David Marchand
9e2af97f87 eal/windows: fix symbol export
The incriminated commit forgot to clean the Windows export file.

Fixes: 3cd73a1a1c4d ("eal: simplify exit functions")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-10-16 14:01:37 +02:00
Suanming Mou
96bb99f270 eal/windows: add pthread mutex
Add pthread mutex lock as it is needed for the thread safe rte_flow
functions.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Tested-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-10-16 00:44:58 +02:00
Thomas Monjalon
3cd73a1a1c eal: simplify exit functions
The option RTE_EAL_ALWAYS_PANIC_ON_ERROR was off by default,
and not customizable with meson. It is completely removed.

The function rte_dump_registers is a trace of the bare metal support
era, and was not supported in userland. It is completely removed.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-15 22:33:47 +02:00
Harry van Haaren
31f83163cf eal: add new prefetch write variants
This commit adds new rte_prefetchX_write() variants, that suggest to the
compiler to use a prefetch instruction with intention to write. As a
compiler builtin, the compiler can choose based on compilation target
what the best implementation for this instruction is.

Three versions are provided, targeting the different levels of cache.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2020-10-15 21:49:59 +02:00
Eli Britstein
057d9a92f0 eal: fix build with conflicting libc variable memory_order
The cited commit introduced functions with 'int memory_order' argument.
The C11 standard section 7.17.1.4 defines 'memory_order' as the
"enumerated type whose enumerators identify memory ordering constraints".

A compilation error occurs:
error: declaration of 'memory_order' shadows a global declaration
    [-Werror=shadow]
     rte_atomic_thread_fence(int memory_order)

This issue was hit when trying to compile OVS with gcc 4.8.5. This
compiler version does not provide stdatomic.h, so enum memory_order is
redefined in OVS code.
In another case, if the compiler does provide stdatomic.h header,
passing -Wsystem-headers in the CFLAGS will also cause that failure.

Fix it by changing the argument name 'memory_order' to 'memorder'.

Fixes: 672a15056380 ("eal: add wrapper for C11 atomic thread fence")

Signed-off-by: Eli Britstein <elibr@nvidia.com>
Reviewed-by: Asaf Penso <asafp@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
2020-10-15 18:49:53 +02:00
David Marchand
0c0d0d9df7 eal: add experimental tags for write combining store
Only marking the doxygen declarations is not enough.
Arch specific implementations must be tagged as well since there is no
common declaration of those inlines.

Fixes: 8a00dfc738fe ("eal: add write combining store")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Radu Nicolau <radu.nicolau@intel.com>
2020-10-15 08:45:30 +02:00
Dmitry Kozlyuk
f40a74cfcf eal/windows: improve compatibility networking headers
Extend compatibility header system to support librte_cmdline.

pthread.h has to include windows.h, which exposes struct in_addr, etc.
conflicting with compatibility headers. WIN32_LEAN_AND_MEAN macro
is required to disable this behavior. Use rte_windows.h to define
WIN32_LEAN_AND_MEAN for pthread library.

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2020-10-15 00:39:10 +02:00
Dmitry Kozlyuk
f4cbdbc7fb eal/windows: implement alarm API
Implementation is based on waitable timers Win32 API. When timer is set,
a callback and its argument are supplied to the OS, while timer handle
is stored in EAL alarm list. When timer expires, OS wakes up the
interrupt thread and runs the callback. Upon completion it removes the
alarm.

Waitable timers must be set from the thread their callback will run in,
eal_intr_thread_schedule() provides a way to schedule asyncronuous code
execution in the interrupt thread. Alarm module builds synchronous timer
setup on top of it.

Windows alarms are not a type of DPDK interrupt handle and do not
interact with interrupt module beyond executing in the same thread.

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-10-14 22:54:04 +02:00
Dmitry Kozlyuk
5c016fc020 eal/windows: add interrupt thread skeleton
Windows interrupt support is based on IO completion ports (IOCP).
Interrupt thread would send the devices requests to notify about
interrupts and then wait for any request completion. Add skeleton code
of this model without any hardware support.

Another way to wake up the interrupt thread is APC (asynchronous procedure
call), scheduled by any other thread via eal_intr_thread_schedule().
This internal API is intended for alarm implementation.

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-10-14 22:48:38 +02:00