According to API, 'rte_dev_probe()' and 'rte_dev_remove()' must
return 0 or negative error code. Bus code returns positive values
if device wasn't recognized by any driver, so the result of
'bus->plug/unplug()' must be converted. 'local_dev_probe()' and
'local_dev_remove()' also has their internal API, so the conversion
should be done there.
Positive on remove means that device not found by driver.
Positive on probe means that there are no suitable buses/drivers,
i.e. device is not supported.
Users of these API fixed to provide a good example by respecting
DPDK API. This also will allow to catch such issues in the future.
Fixes: a3ee360f44 ("eal: add hotplug add/remove device")
Fixes: 244d513071 ("eal: enable hotplug on multi-process")
Cc: stable@dpdk.org
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Putting a '__attribute__((deprecated))' in the middle of a function
prototype does not result in the expected result with gcc (while clang
is fine with this syntax).
$ cat deprecated.c
void * __attribute__((deprecated)) incorrect() { return 0; }
__attribute__((deprecated)) void *correct(void) { return 0; }
int main(int argc, char *argv[]) { incorrect(); correct(); return 0; }
$ gcc -o deprecated.o -c deprecated.c
deprecated.c: In function ‘main’:
deprecated.c:3:1: warning: ‘correct’ is deprecated (declared at
deprecated.c:2) [-Wdeprecated-declarations]
int main(int argc, char *argv[]) { incorrect(); correct(); return 0; }
^
Move the tag on a separate line and make it the first thing of function
prototypes.
This is not perfect but we will trust reviewers to catch the other not
so easy to detect patterns.
sed -i \
-e '/^\([^#].*\)\?__rte_experimental */{' \
-e 's//\1/; s/ *$//; i\' \
-e __rte_experimental \
-e '/^$/d}' \
$(git grep -l __rte_experimental -- '*.h')
Special mention for rte_mbuf_data_addr_default():
There is either a bug or a (not yet understood) issue with gcc.
gcc won't drop this inline when unused and rte_mbuf_data_addr_default()
calls rte_mbuf_buf_addr() which itself is experimental.
This results in a build warning when not accepting experimental apis
from sources just including rte_mbuf.h.
For this specific case, we hide the call to rte_mbuf_buf_addr() under
the ALLOW_EXPERIMENTAL_API flag.
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
We had some inconsistencies between functions prototypes and actual
definitions.
Let's avoid this by only adding the experimental tag to the prototypes.
Tests with gcc and clang show it is enough.
git grep -l __rte_experimental |grep \.c$ |while read file; do
sed -i -e '/^__rte_experimental$/d' $file;
sed -i -e 's/ *__rte_experimental//' $file;
sed -i -e 's/__rte_experimental *//' $file;
done
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
This function is not visible from outside this code unit.
Fixes: 84e7477e10 ("mem: add thread unsafe version for DMA mask check")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
The incriminated commit promoted this symbol as stable but the
definition still has the tag.
Fixes: 787ae736a3 ("vfio: remove experimental tag")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
The incriminated commit promoted those symbols as stable but the
prototypes still have the tag.
Fixes: 73eca2f77f ("devargs: promote experimental API as stable")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
This API was experimental and not properly marked in the map file.
But looking more closely, this is just an internal wrapper for EAL init.
Hide it in the hotplug code.
Fixes: 244d513071 ("eal: enable hotplug on multi-process")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
When seeding the pseudo-random number generator, replace the 64-bit
RDSEED with two 32-bit RDSEED instructions to allow building and
running on 32-bit x86.
Fixes: faf8fd2527 ("eal: improve entropy for initial PRNG seed")
Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Add a function rte_rand_max() which generates an uniformly distributed
pseudo-random number less than a user-specified upper bound.
The commonly used pattern rte_rand() % SOME_VALUE creates biased
results (as in some values in the range are more frequently occurring
than others) if SOME_VALUE is not a power of 2.
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Replace the use of rte_get_timer_cycles() with getentropy() for
seeding the pseudo-random number generator. getentropy() provides a
more truly random value.
getentropy() requires glibc 2.25 and Linux kernel 3.17. In case
getentropy() is not found at compile time, or the relevant syscall
fails in runtime, the rdseed machine instruction will be used as a
fallback.
rdseed is only available on x86 (Broadwell or later). In case it is
not present, rte_get_timer_cycles() will be used as a second fallback.
On non-Meson builds, getentropy() will not be used.
Suggested-by: Bruce Richardson <bruce.richardson@intel.com>
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit replaces rte_rand()'s use of lrand48() with a DPDK-native
combined Linear Feedback Shift Register (LFSR) (also known as
Tausworthe) pseudo-random number generator.
This generator is faster and produces better-quality random numbers
than the linear congruential generator (LCG) of lib's lrand48(). The
implementation, as opposed to lrand48(), is multi-thread safe in
regards to concurrent rte_rand() calls from different lcore threads.
A LCG is still used, but only to seed the five per-lcore LFSR
sequences.
In addition, this patch also addresses the issue of the legacy
implementation only producing 62 bits of pseudo randomness, while the
API requires all 64 bits to be random.
This pseudo-random number generator is not cryptographically secure -
just like lrand48().
Bugzilla ID: 114
Bugzilla ID: 276
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Build error:
../lib/librte_telemetry/rte_telemetry.c:558:28:
error: comparison of unsigned expression < 0 is always false
[-Werror,-Wtautological-compare]
Build error not observed in default make build because telemetry library
disabled by default but easier to reproduce via meson.
Fixing by converting unsigned variables to signed.
Fixes: 0fe3a37924 ("telemetry: format json response when sending stats")
Fixes: 4080e46c80 ("telemetry: support global metrics")
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
Array ins_chk in lib/librte_bpf/bpf_validate.c has 255 entries.
So the instruction with opcode == 255 will reading beyond array
boundaries.
For more details please refer to:
https://bugs.dpdk.org/show_bug.cgi?id=283
Fixes: 6e12ec4c4d ("bpf: add more checks")
Cc: stable@dpdk.org
Reported-by: Michel Machado <michel@digirati.com.br>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Take into account IPv6 fragment extension header when
calculating data size for each fragment.
Fixes: 7a838c8798 ("ip_frag: fix IPv6 when MTU sizes not aligned to 8 bytes")
Fixes: 0aa31d7a59 ("ip_frag: add IPv6 fragmentation support")
Cc: stable@dpdk.org
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
clang raise 'pointer-sign' warnings in __atomic_compare_exchange
when passing 'uint64_t *' to parameter of type 'int64_t *' converts
between pointers to integer types with different sign.
Fixes: 7e6e609939 ("stack: add C11 atomic implementation")
Cc: stable@dpdk.org
Suggested-by: Gage Eads <gage.eads@intel.com>
Signed-off-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Gage Eads <gage.eads@intel.com>
When adding an alarm, if an error happen when registering
the common alarm callback, it is not considered as a major failure.
The alarm is then inserted in the list.
However it was returning an error code after inserting the alarm.
The error code is not set anymore to be consistent with the behaviour.
Fixes: af75078fec ("first public release")
Cc: stable@dpdk.org
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
This patch changes some void functions to return a value,
so that the init sequence may tear down orderly
instead of calling panic.
Signed-off-by: Arnon Warshavsky <arnon@qwilt.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
When a component uses either XOPEN_SOURCE or POSIX_C_SOURCE macro
explicitly in its build recipe, it restricts visibility of a non POSIX
features subset, such as IANA protocol numbers (IPPROTO_* macros).
Non standard features are enabled by default for DPDK both for Linux
thanks to _GNU_SOURCE and for FreeBSD thanks to __BSD_VISIBLE. However
using XOPEN_SOURCE or POSIX_(C_)SOURCE in a component causes
__BSD_VISIBLE to be defined to 0 for FreeBSD, causing different feature
sets visibility for Linux and FreeBSD. It restricts from using IPPROTO
macros in public headers, such as rte_ip.h, despite the fact they are
already widely used in sources.
Add __BSD_VISIBLE macro specified unconditionally for FreeBSD targets
which enforces feature sets visibility unification between Linux and
FreeBSD.
Add single -D_GNU_SOURCE to config/meson.build as a project argument
instead of adding separate directive for each project subtree.
This patch solves the problem of build breaks for [1] on FreeBSD [2]
following the discussion [3].
[1] https://mails.dpdk.org/archives/dev/2019-May/131885.html
[2] http://mails.dpdk.org/archives/test-report/2019-May/082263.html
[3] https://mails.dpdk.org/archives/dev/2019-May/132110.html
Signed-off-by: Marcin Smoczynski <marcinx.smoczynski@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
telemetry has support for fetching port based stats
from metrics library.
Metrics library also has global stats which are
not fetched by telemetry, so extend telemetry to
fetch the global metrics.
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
This patch fixes the inferred misuse of enum of crypto algorithms.
Coverity issue: 325879
Fixes: e80a987081 ("vhost/crypto: add session message handler")
Cc: stable@dpdk.org
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This patch fixes a few same class bugs that causes the
logically dead code in vhost_crypto.
Coverity issue: 277236, 277233, 277220, 277214
Fixes: 3bb595ecd6 ("vhost/crypto: add request handler")
Cc: stable@dpdk.org
Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Add a missing include with the defines for vhost-user driver features.
Fixes: 5fbb3941da ("vhost: introduce driver features related APIs")
Cc: stable@dpdk.org
Signed-off-by: Noa Ezra <noae@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Matan Azrad <matan@mellanox.com>
Free the `values` pointer before returning
from rte_telemetry_command_ports_all_stat_values()
to avoid memory leak.
Fixes: c12cefa379 ("telemetry: fix mapping of statistics")
Cc: stable@dpdk.org
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
As there is no ethtool support in KNI anymore,
PCI related information is no longer needed.
Fixes: ea6b39b5b8 ("kni: remove ethtool support")
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
rte_eth_dev_info structure exposes, nb_seg_max & nb_mtu_seg_max
to provide maximum number of supported segments for a given platform.
Defining UINT16_MAX as default value of above mentioned variables to
expose support of infinite/maximum segments.
Based on above values, application can decide best size for buffers
while creating mbuf pool.
Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
We currently have no check on the mempool pointer passed to
rte_eth_rx_queue_setup.
Let's avoid a plain crash when dereferencing it.
Suggested-by: Jens Freimann <jfreimann@redhat.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Some helpers in the header file are forced inlined other are
only inlined, this patch forces inline for all.
It will avoid it to be embedded as functions when called multiple
times in the same object file. For example, when we added packed
ring support in vhost-user library, rte_memcpy_generic got no
more inlined.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Now that we have a single function to map the descriptors
buffers, let's prefetch them there as it is the earliest
place we can do it.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
Handling of fragmented virtio-net header and indirect descriptors
tables was implemented to fix CVE-2018-1059. It should never
happen with healthy guests and so is already considered as
unlikely code path.
This patch moves these bits into non-inline dedicated functions
to reduce the I-cache pressure.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
At runtime either packed Tx/Rx functions will always be called,
or split Tx/Rx functions will always be called.
This patch removes the forced inlining in order to reduce
the I-cache pressure.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
In order to reduce the I-cache pressure, this patch removes
the inlining of the dirty pages logging functions, that we
can consider as cold path.
Indeed, these functions are only called while doing live
migration, so not called most of the time.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
Add rte_eth_read_clock to read the raw clock of a device.
The main use is to get the device clock conversion co-efficients to be
able to translate the raw clock of the timestamp field of the pkt mbuf
to a local synced time value.
This function was missing to allow users to convert the Rx timestamp
field to real time without the complexity of the rte_timesync* facility.
One can derivate the clock frequency by calling twice read_clock and
then keep a common time base.
Signed-off-by: Tom Barbette <barbette@kth.se>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Some compilers reporting the following error, though the existing
code doesn't have any uninitialized variable case.
Just to make compiler happy, initialize the int32x4_t variable
one shot using vdupq_n_s32.
lib/librte_acl/acl_run_neon.h: In function 'search_neon_4'
lib/librte_acl/acl_run_neon.h:230:12: error:
'input' may be used uninitialized in this function
int32x4_t input;
Fixes: 34fa6c27c1 ("acl: add NEON optimization for ARMv8")
Cc: stable@dpdk.org
Suggested-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Replaced multiple neon instructions with single equivalent instruction.
This made simpler code and a bit higher performance.
Hash bulk lookup had 0.1% ~ 3% performance gain in tests on ARM A72
platforms.
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Rather than having a separate version.map file for linux/BSD and an
exports definition file for windows for each library, generate the
latter from the former automatically at build time.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
clang 6.0 and onwards, for the external function call generates
BPF_PSEUDO_CALL instruction:
call pseudo +-off -> call another bpf function.
More details about that change: https://lwn.net/Articles/741773/
DPDK BPF implementation right now doesn't support multiple BPF
functions per module.
To overcome that problem, and preserve existing functionality
(ability to call allowed by user external functions),
bpf_elf_load() clears EBPF_PSEUDO_CALL value.
For details how to reproduce the issue:
https://bugs.dpdk.org/show_bug.cgi?id=259
Fixes: 5dba93ae5f ("bpf: add ability to load eBPF program from ELF object file")
Cc: stable@dpdk.org
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Weak functions don't work well with static libraries and require the use of
"whole-archive" flag to ensure that the correct function is used when
linking. Since the weak function is only used as a placeholder within this
library alone, we can replace it with a non-weak version protected using
preprocessor ifdefs.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Weak functions don't work well with static libraries and require the use of
"whole-archive" flag to ensure that the correct function is used when
linking. Since the weak functions are only used as placeholders within
this library alone, we can replace them with non-weak functions using
preprocessor ifdefs.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call to explicitly handle unsupported IPC cases.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call and its callers to explicitly handle
unsupported IPC cases.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call and its callers to explicitly handle
unsupported IPC cases.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Currently, unregister will be attempted even if IPC wasn't
supported in the first place. It is harmless, but for
consistency reasons, update the unregister API call to
exit early when IPC is not supported.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call and its callers to explicitly handle
unsupported IPC cases.
For primary processes, it is OK to not have IPC because
there may not be any secondary processes in the first place,
and there are valid use cases that disable IPC support, so
all primary process usages are fixed up to ignore IPC
failures.
For secondary processes, IPC will be crucial, so leave all
of the error handling as is.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Currently, IPC API will silently ignore unsupported IPC.
Fix the API call and its callers to explicitly handle
unsupported IPC cases.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
As memzone.h is introduced by
commit 38c9817ee1 ("mempool: adjust name size in related data types"),
forward declaration for rte_memzone is no longer needed.
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
move_pages() is only used to get the numa node id, but this function
is not allowed by default in docker (it needs CAP_SYS_NICE and an update of
the seccomp profile).
get_mempolicy() also requires CAP_SYS_NICE but doesn't need any change in
the default seccomp profile.
Note that the returned value of move_pages() was not checked, thus some
errors could be hidden (if the requested id was 0).
Fixes: 582bed1e1d ("mem: support mapping hugepages at runtime")
Cc: stable@dpdk.org
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Didier Pallard <didier.pallard@6wind.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
