Added new path to do lpm4 lookup by using scalable vector extension.
The SVE path will be selected if compiler has flag SVE set.
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
rte_lpm_lookupx4 could return wrong next hop when more than 256 tbl8
groups are created. This is caused by incorrect type casting of tbl8
group index that been stored in tbl24 entry. The casting caused group
index truncation and hence wrong tbl8 group been searched.
Issue fixed by applying proper mask to tbl24 entry to get tbl8 group index.
Fixes: dc81ebbaca ("lpm: extend IPv4 next hop field")
Fixes: cbc2f1dccf ("lpm/arm: support NEON")
Fixes: d2cc795934 ("lpm: add AltiVec for ppc64")
Cc: stable@dpdk.org
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Tested-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Fields except tbl24 and tbl8 in rte_lpm structure have no
need to be exposed to the user.
Hide the unneeded exposure of structure fields for better
ABI maintainability.
Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
The container structure should be freed instead of rte_lpm structure
after wrapping rte_lpm into internal structure __rte_lpm.
Fixes: 8a9f8564e9 ("lpm: implement RCU rule reclamation")
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
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>
RTE_ARCH_xx flags are used to distinguish platform architectures.
These flags can be used to pick different code paths for different
architectures at compile time.
For Arm platforms, there are 3 flags in use: RTE_ARCH_ARM,
RTE_ARCH_ARMv7 and RTE_ARCH_ARM64.
RTE_ARCH_ARM64 is for 64-bit aarch64 platforms,
and RTE_ARCH_ARM & RTE_ARCH_ARMv7 are for 32-bit platforms.
RTE_ARCH_ARMv7 is for ARMv7 platforms as its name suggested.
The issue is meaning of RTE_ARCH_ARM is not clear enough.
Because no info about platform word length is included in the name.
To make the flag names more clear, a naming scheme is proposed.
RTE_ARCH_ARM (all Arm platforms)
|
+----RTE_ARCH_32 (New. 32-bit platforms of all architectures)
| |
| +----RTE_ARCH_ARMv7 (ARMv7 platforms)
| |
| +----RTE_ARCH_ARMv8_AARCH32 (aarch32 state on aarch64 machine)
|
+----RTE_ARCH_64 (64-bit platforms of all architectures)
|
+----RTE_ARCH_ARM64 (64-bit Arm platforms)
RTE_ARCH_32 will be explicitly defined for 32-bit platforms.
To fit into the new naming scheme, current usage of RTE_ARCH_ARM in
project is mapped to (RTE_ARCH_ARM && RTE_ARCH_32).
Matching flags for other architectures are:
RTE_ARCH_X86
|
+----RTE_ARCH_32
| |
| +----RTE_ARCH_I686
| |
| +----RTE_ARCH_X86_X32
|
+----RTE_ARCH_64
|
+----RTE_ARCH_X86_64
RTE_ARCH_PPC_64 ---- RTE_ARCH_64
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
A decision was made [1] to no longer support Make in DPDK, this patch
removes all Makefiles that do not make use of pkg-config, along with
the mk directory previously used by make.
[1] https://mails.dpdk.org/archives/dev/2020-April/162839.html
Signed-off-by: Ciara Power <ciara.power@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Start a new release cycle with empty release notes.
The ABI version becomes 21.0.
The ABI major is back to normal, having only one number (21 vs 20.0).
The map files are updated to the new ABI major number (21).
The ABI exceptions are dropped.
Travis ABI check is disabled because compatibility is not preserved.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Coverity complains about unchecked return value of rte_rcu_qsbr_dq_enqueue.
By default, defer queue size is big enough to hold all tbl8 groups. When
enqueue fails, return error to the user to indicate system issue.
Coverity issue: 360832
Fixes: 8a9f8564e9 ("lpm: implement RCU rule reclamation")
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
There is no need to return the defer queue handle in rte_lpm_rcu_qsbr_add,
since enough flexibility has been provided to configure the defer queue.
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Currently, the tbl8 group is freed even though the readers might be
using the tbl8 group entries. The freed tbl8 group can be reallocated
quickly. This results in incorrect lookup results.
RCU QSBR process is integrated for safe tbl8 group reclaim.
Refer to RCU documentation to understand various aspects of
integrating RCU library into other libraries.
To avoid ABI breakage, a struct __rte_lpm is created for lpm library
internal use. This struct wraps rte_lpm that has been exposed and
also includes members that don't need to be exposed such as RCU related
config.
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Table entries do not need to be updated if the same rules can be found.
Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
None of the public functions modify IPv6 address passed. So their
parameters are made const - with the exception of bulk functions.
This exception is due to compatibility problems - some compilers report
problems with const-casting of array of arrays.
Previously only lookup and add were updated to have addresses passed as
const so I'm adding this fixline.
Fixes: d82927d2f8 ("lpm6: make IPv6 address immutable")
Cc: stable@dpdk.org
Signed-off-by: Andrzej Ostruszka <aostruszka@marvell.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Both the table setup and lookup do no modify their arguments.
Therefore the parameter should be constant.
This is not actually an API breakage since programs can be
recompiled without change. This is not an ABI breakage because
old programs will still run.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Timer, LPM and Distributor libraries no longer use function versioning
and therefore do not need separate build for static and shared version
of libraries.
This patch removes use_function_versioning from their meson build files
and corresponding include from the sources.
Fixes: f2fb215843 ("timer: remove deprecated code")
Fixes: 6e5b516761 ("distributor: remove deprecated code")
Fixes: c381a8d554 ("lpm: remove deprecated code")
Cc: stable@dpdk.org
Signed-off-by: Andrzej Ostruszka <aostruszka@marvell.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
Merge all versions in linker version script files to DPDK_20.0.
This commit was generated by running the following command:
:~/DPDK$ buildtools/update-abi.sh 20.0
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Remove code for old ABI versions ahead of ABI version bump.
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Since the library versioning for both stable and experimental ABI's is
now managed globally, the LIBABIVER and version variables no longer
serve any useful purpose, and can be removed.
The replacement in Makefiles was done using the following regex:
^(#.*\n)?LIBABIVER\s*:=\s*\d+\n(\s*\n)?
(LIBABIVER := numbers, optionally preceded by a comment and optionally
succeeded by an empty line)
The replacement for meson files was done using the following regex:
^(#.*\n)?version\s*=\s*\d+\n(\s*\n)?
(version = numbers, optionally preceded by a comment and optionally
succeeded by an empty line)
[David]: those variables are manually removed for the files:
- drivers/common/qat/Makefile
- lib/librte_eal/meson.build
[David]: the LIBABIVER is restored for the external ethtool example
library.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Every implementation of a particular version of given symbol needs to be
marked in its declaration as such (using `__vsym` macro). This patch
fixes this and also clarifies the documentation about that.
Signed-off-by: Andrzej Ostruszka <aostruszka@marvell.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Any file with ABI versioned functions needs different macros for shared and
static builds, so we need to accommodate that. Rather than building
everything twice, we just flag to the build system which libraries need
that handling, by setting use_function_versioning in the meson.build files.
To ensure we don't get silent errors at build time due to this meson flag
being missed, we add an explicit error to the function versioning header
file if a known C macro is not defined. Since "make" builds always only
build one of shared or static libraries, this define can be always set, and
so is added to the global CFLAGS. For meson, the build flag - and therefore
the C define - is set for the three libraries that need the function
versioning: "distributor", "lpm" and "timer".
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Andrzej Ostruszka <amo@semihalf.com>
Reviewed-by: Andrzej Ostruszka <amo@semihalf.com>
The compat.h header file provided macros for two purposes:
1. it provided the macros for marking functions as rte_experimental
2. it provided the macros for doing function versioning
Although these were in the same file, #1 is something that is for use by
public header files, which #2 is for internal use only. Therefore, we can
split these into two headers, keeping #1 in rte_compat.h and #2 in a new
file rte_function_versioning.h. For "make" builds, since internal objects
pick up the headers from the "include/" folder, we need to add the new
header to the installation list, but for "meson" builds it does not need to
be installed as it's not for public use.
The rework also serves to allow the use of the function versioning macros
to files that actually need them, so the use of experimental functions does
not need including of the versioning code.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Andrzej Ostruszka <amo@semihalf.com>
Compiler could generate non-atomic stores for whole table entry
updating. This may cause incorrect nexthop to be returned, if
the byte with valid flag is updated prior to the byte with nexthop
is updated.
Besides, field by field updating of table entries follow
read-modify-write sequences. The operations are not atomic,
nor efficient. And could cause entries out of synchronization.
Changed to use atomic store to update whole table entry.
Suggested-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Suggested-by: Gavin Hu <gavin.hu@arm.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
When a tbl8 group is getting attached to a tbl24 entry, lookup
might fail even though the entry is configured in the table.
For ex: consider a LPM table configured with 10.10.10.1/24.
When a new entry 10.10.10.32/28 is being added, a new tbl8
group is allocated and tbl24 entry is changed to point to
the tbl8 group. If the tbl24 entry is written without the tbl8
group entries updated, a lookup on 10.10.10.9 will return
failure.
Correct memory orderings are required to ensure that the
store to tbl24 does not happen before the stores to tbl8 group
entries complete.
Besides, explicit structure alignment is used to address atomic
operation building issue with older version clang.
Suggested-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
When a tbl8 group is getting attached to a tbl24 entry, lookup
might fail even though the entry is configured in the table.
For ex: consider a LPM table configured with 10.10.10.1/24.
When a new entry 10.10.10.32/28 is being added, a new tbl8
group is allocated and tbl24 entry is changed to point to
the tbl8 group. If the tbl24 entry is written without the tbl8
group entries updated, a lookup on 10.10.10.9 will return
failure.
Correct memory orderings are required to ensure that the
store to tbl24 does not happen before the stores to tbl8 group
entries complete.
The ordering patches in general have no notable impact on LPM
performance test on both Arm A72 platform and x86 E5 platform.
Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Tests showed that the function inlining caused performance drop
on some x86 platforms with the memory ordering patches applied.
By force no-inline functions, the performance was better than
before on x86 and no impact to arm64 platforms.
Besides inlines of other functions are removed to let compiler
to decide whether to inline.
Suggested-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Now that everything that has ever accessed the shared memory
config is doing so through the public API's, we can make it
internal. Since we're removing quite a few headers from
rte_eal_memconfig.h, we need to add them back in places
where this header is used.
This bumps the ABI, so also change all build files and make
update documentation.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David Marchand <david.marchand@redhat.com>
Currently, locking/unlocking the TAILQ list requires direct
access to the shared memory config. Add an API to do the same,
and search-and-replace all usages.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David Marchand <david.marchand@redhat.com>
For files that already have rte_string_fns.h included in them, we can
do a straight replacement of snprintf(..."%s",...) with strlcpy. The
changes in this patch were auto-generated via command:
spatch --sp-file devtools/cocci/strlcpy-with-header.cocci --dir . --in-place
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Rework the delete function and add additional
internal data structures to support incremental
LPM tree update rather than full tree rebuild.
Signed-off-by: Alex Kiselev <alex@therouter.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Rework the lpm6 rule subsystem and replace
current rules algorithm complexity O(n)
with hashtables which allow dealing with
large (50k) rule sets.
Signed-off-by: Alex Kiselev <alex@therouter.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Fix rte_lpm_create_*() functions to return NULL and set rte_errno to
EEXIST when lpm object name already exists.
This is the behavior described in the API documentation in the header
file.
Fixes: 134975073a ("lib: remove unnecessary pointer cast")
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
By making "compat" lib (which consists of a header only) a dependency of
the EAL, we make the header file available to all other libs, drivers and
apps, and thereby make it less work to do ABI versioning.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
The main rte_lpm.h header file also includes architecture specific headers,
depending on the architecture on which it is used. These also need to be
installed into the include directory as part of the "ninja install"
process. Thankfully, since the vector headers all have different names we
can just install all 3 of them in all cases, which avoids conflicts or
issues with multi-architecture installs, or the need to use
architecture-specific subdirectories.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Luca Boccassi <bluca@debian.org>
Add non-EAL libraries to DPDK build. The compat lib is a special case,
along with the previously-added EAL, but all other libs can be build using
the same set of commands, where the individual meson.build files only need
to specify their dependencies, source files, header files and ABI versions.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Keith Wiles <keith.wiles@intel.com>
Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
Many exported headers rely on definitions found in rte_config.h without
including it, as shown by the following command:
grep -L '^#include <rte_config.h>' -- \
$(grep -Rl \
$(sed -n '/^#define \([^ ]\+\).*$/{s//\1/;H;};${x;s/\n//;s/\n/\\|/g;p;}' \
build/include/rte_config.h) \
-- build/include/)
We cannot assume external applications will include rte_config.h on their
own, neither directly nor through a -include parameter like DPDK does
internally.
This not only causes obvious compilation failures that can be reproduced
with check-includes.sh such as:
[...]/rte_memory.h:88:43: error: ‘RTE_CACHE_LINE_SIZE’ was not declared in
this scope
#define __rte_cache_aligned __rte_aligned(RTE_CACHE_LINE_SIZE)
^
It also results in less visible issues, for instance rte_hash_crc.h relying
on RTE_ARCH_X86_64's presence to provide dedicated inline functions.
This patch partially reverts the commit below and adds missing include
lines to the remaining files.
Fixes: f1a7a5c5f4 ("remove include of generated config header")
Cc: stable@dpdk.org
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
void * pointer can be assigned to any data type pointer.
Unnecessary cast can be removed in order to keep code clearer.
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Compiling on ARM BE using Linaro toolchain caused following
error/warnings.
rte_lpm.c: In function ‘add_depth_big_v20’:
rte_lpm.c:911:4: error: braces around scalar initializer [-Werror]
{ .group_idx = (uint8_t)tbl8_group_index, },
^
rte_lpm.c:911:4: note: (near initialization for
‘new_tbl24_entry.depth’)
rte_lpm.c:911:6:error: field name not in record or union initializer
{ .group_idx = (uint8_t)tbl8_group_index, },
^
rte_lpm.c:911:6: note: (near initialization for
‘new_tbl24_entry.depth’)
rte_lpm.c:914:13: error: initialized field overwritten
[-Werror=override-init]
.depth = 0,
Fixes: dc81ebbaca ("lpm: extend IPv4 next hop field")
Cc: stable@dpdk.org
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
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@intel.com>
The memzone header is often included without good reason.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
The compilation with gcc-6.3.0 and EXTRA_CFLAGS=-Og gives the following
error:
CC rte_lpm6.o
rte_lpm6.c: In function ‘rte_lpm6_add_v1705’:
rte_lpm6.c:442:11: error: ‘tbl_next’ may be used uninitialized in
this function [-Werror=maybe-uninitialized]
if (!tbl[tbl_index].valid) {
^
rte_lpm6.c:521:29: note: ‘tbl_next’ was declared here
struct rte_lpm6_tbl_entry *tbl_next;
^~~~~~~~
This is a false positive from gcc. Fix it by initializing tbl_next
to NULL.
Fixes: 5c510e13a9 ("lpm: add IPv6 support")
Cc: stable@dpdk.org
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
The list of libraries in LDLIBS was generated from the DEPDIRS-xyz
variable. This is valid when the subdirectory name match the library
name, but it's not always the case, especially for PMDs.
The patches removes this feature and explicitly adds the proper
libraries in LDLIBS.
Some DEPDIRS-xyz variables become useless, remove them.
Reported-by: Gage Eads <gage.eads@intel.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Gage Eads <gage.eads@intel.com>
