Commit Graph

5 Commits

Author SHA1 Message Date
Thomas Monjalon
7a33572057 lib: remove C++ include guard from private headers
The private headers are compiled internally with a C compiler.
Thus extern "C" declaration is useless in such files.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2021-09-22 22:00:17 +02:00
Thomas Monjalon
fdab8f2e17 version: 21.11-rc0
Start a new release cycle with empty release notes.

The ABI version becomes 22.0.
The map files are updated to the new ABI major number (22).
The ABI exceptions are dropped and CI ABI checks are disabled because
compatibility is not preserved.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-08-17 08:37:52 +02:00
Konstantin Ananyev
b3b36f0fbf acl: fix build with GCC 6.3
--buildtype=debug with gcc 6.3 produces the following error:

../lib/librte_acl/acl_run_avx512_common.h: In function
‘resolve_match_idx_avx512x16’:
../lib/librte_acl/acl_run_avx512x16.h:33:18: error:
	the last argument must be an 8-bit immediate
                               ^
../lib/librte_acl/acl_run_avx512_common.h:373:9: note:
	in expansion of macro ‘_M_I_’
      return _M_I_(slli_epi32)(mi, match_log);
             ^~~~~

Seems like gcc-6.3 complains about the following construct:

static const uint32_t match_log = 5;
    ...
_mm512_slli_epi32(mi, match_log);

It can't substitute constant variable 'match_log' with its actual value.
The fix replaces constant variable with its immediate value.

Bugzilla ID: 717
Fixes: b64c2295f7 ("acl: add 256-bit AVX512 classify method")
Fixes: 45da22e42e ("acl: add 512-bit AVX512 classify method")
Cc: stable@dpdk.org

Reported-by: Liang Ma <liangma@liangbit.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-06-17 09:37:11 +02:00
Konstantin Ananyev
8e2dd74f0a acl: fix build with GCC 11
gcc 11 with '-O2' complains about some variables being used without
being initialized:

In function ‘start_flow_avx512x8’,
    inlined from ‘search_trie_avx512x8.constprop’ at acl_run_avx512_common.h:317:
lib/librte_acl/acl_run_avx512_common.h:210:13: warning:
    ‘pdata’ is used uninitialized [-Wuninitialized]
In function ‘search_trie_avx512x8.constprop’:
lib/librte_acl/acl_run_avx512_common.h:314:32: note: ‘pdata’ declared here
...

Indeed, these variables are not explicitly initialized,
but this is done intentionally.
We rely on constant mask value that we pass to start_flow*() functions
as a parameter to mask out uninitialized values.
Note that '-O3' doesn't produce this warning.
Anyway, to support clean build with gcc-11 this patch adds
explicit initialization for these variables.
I checked the output binary: with '-O3' both clang and gcc 10/11
generate no extra code for it.
Also performance test didn't reveal any regressions.

Bugzilla ID: 673
Fixes: b64c2295f7 ("acl: add 256-bit AVX512 classify method")
Fixes: 45da22e42e ("acl: add 512-bit AVX512 classify method")
Cc: stable@dpdk.org

Reported-by: Ali Alnubani <alialnu@nvidia.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-05-05 12:10:15 +02:00
Bruce Richardson
99a2dd955f lib: remove librte_ prefix from directory names
There is no reason for the DPDK libraries to all have 'librte_' prefix on
the directory names. This prefix makes the directory names longer and also
makes it awkward to add features referring to individual libraries in the
build - should the lib names be specified with or without the prefix.
Therefore, we can just remove the library prefix and use the library's
unique name as the directory name, i.e. 'eal' rather than 'librte_eal'

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-21 14:04:09 +02:00