The global include path, which is used by anything built before EAL,
points to the EAL header files so they utility macros etc. can be used
anywhere in DPDK. This path included the OS-specific EAL header files,
but not the architecture-specific ones. This patch moves the selection
of target architecture to the top-level meson.build file so that the
global include can reference that.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Keith Wiles <keith.wiles@intel.com>
This patch adds CPU flags which will enable the detection of ISA
features available on more recent x86 based CPUs.
The CPUID leaf information can be found in
Table 1-2. "Information Returned by CPUID Instruction" of this document:
https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf
The following CPU flags are added in this patch:
- AVX-512 doubleword and quadword instructions.
- AVX-512 integer fused multiply-add instructions.
- AVX-512 conflict detection instructions.
- AVX-512 byte and word instructions.
- AVX-512 vector length instructions.
- AVX-512 vector bit manipulation instructions.
- AVX-512 vector bit manipulation 2 instructions.
- Galois field new instructions.
- Vector AES instructions.
- Vector carry-less multiply instructions.
- AVX-512 vector neural network instructions.
- AVX-512 for bit algorithm instructions.
- AVX-512 vector popcount instructions.
- Cache line demote instructions.
- Direct store instructions.
- Direct store 64B instructions.
- AVX-512 two register intersection instructions.
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
stringop-overflow warns when it sees a possible overflow
in a string operation.
In the rte_memcpy functions different branches are taken
depending on the size. stringop-overflow is raised for the
branches in the function where it sees the static size of the
src could be overflowed.
However, in reality a correct size argument and in some cases
dynamic allocation would ensure that this does not happen.
For example, in the case below for key, the correct path will be
chosen in rte_memcpy_generic at runtime based on the size argument
but as some paths in the function could lead to a cast to 32 bytes
a warning is raised.
In function ‘_mm256_storeu_si256’,
inlined from ‘rte_memcpy_generic’
at ../lib/librte_eal/common/include/arch/x86/rte_memcpy.h:315:2,
inlined from ‘iavf_configure_rss_key’
at ../lib/librte_eal/common/include/arch/x86/rte_memcpy.h:869:10:
/usr/lib/gcc/x86_64-redhat-linux/10/include/avxintrin.h:928:8:
warning: writing 32 bytes into a region of size 1 [-Wstringop-overflow=]
928 | *__P = __A;
| ~~~~~^~~~~
In file included
from ../drivers/net/iavf/../../common/iavf/iavf_prototype.h:10,
from ../drivers/net/iavf/iavf.h:9,
from ../drivers/net/iavf/iavf_vchnl.c:22:
../drivers/net/iavf/iavf_vchnl.c:
In function ‘iavf_configure_rss_key’:
../drivers/net/iavf/../../common/iavf/virtchnl.h:508:5:
note: at offset 0 to object ‘key’ with size 1 declared here
508 | u8 key[1]; /* RSS hash key, packed bytes */
| ^~~
Ignore the stringop-overflow warnings for rte_memcpy.h functions.
Bugzilla ID: 394
Bugzilla ID: 421
Cc: stable@dpdk.org
Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Fix spelling errors in comments (found with codespell).
Note that "inbetween" is not correct in English and should
either be two words or better yet, the in can be dropped.
https://www.grammarly.com/blog/in-between-or-inbetween/
Fixes: 12f45fa7e29b ("eal/arm: read timer from PMU if enabled")
Fixes: 096ffd811fe2 ("eal/x86: use lock-prefixed instructions for SMP barrier")
Fixes: 1d406458db47 ("mem: make segment preallocation OS-specific")
Fixes: bb372060dad4 ("malloc: make heap a doubly-linked list")
Fixes: 7353ee7344b4 ("fbarray: add API to find biggest used or free chunks")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
There is a macro __rte_always_inline, forcing functions to be inlined,
which is now used where appropriate for consistency.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
The arch-specific directories arm, ppc and x86 in common/include/arch/
are moved as include/ sub-directories of respective arch directories:
- arm/include/
- ppc/include/
- x86/include/
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: David Marchand <david.marchand@redhat.com>
The arch-specific directories arm, ppc and x86 in common/arch/
are moved at the same level as the OS-specific directories.
It makes more clear that EAL is covering a matrix combining OS and arch.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: David Marchand <david.marchand@redhat.com>
