From: Thomas Monjalon <thomas@monjalon.net>
To: bruce.richardson@intel.com
Cc: dev@dpdk.org
Subject: Re: [PATCH 0/3] lib: fix AVX2 checks and macro exposure
Date: Thu, 18 Sep 2025 10:10:59 +0200 [thread overview]
Message-ID: <24958055.6Emhk5qWAg@thomas> (raw)
In-Reply-To: <20250918073135.1273767-1-thomas@monjalon.net>
18/09/2025 09:28, Thomas Monjalon:
> These are fixes for AVX2 in efd and member libraries.
> While at it, I've hidden a macro which was wrongly exported in the API
> without having a correct prefix.
>
> Thomas Monjalon (3):
> efd: fix AVX2 support
> member: remove AVX2 build-time checks
> member: hide internal macro
The AVX2 changes break the compilation of "x86-generic" with these messages:
lib/member/rte_member_x86.h: In function 'search_bucket_single_avx':
lib/member/rte_member_x86.h:35:28: error: AVX vector return without AVX enabled changes the ABI [-Werror=psabi]
35 | uint32_t hitmask = _mm256_movemask_epi8((__m256i)_mm256_cmpeq_epi16(
lib/efd/rte_efd_x86.h: In function 'efd_lookup_internal_avx2':
lib/efd/rte_efd_x86.h:24:17: error: AVX vector return without AVX enabled changes the ABI [-Werror=psabi]
24 | __m256i vhash_val_a = _mm256_set1_epi32(hash_val_a);
AVX2 must be forced on these headers.
The solution is probably to move these functions in .c files
declared as sources_avx2 in meson.build.
next prev parent reply other threads:[~2025-09-18 8:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-18 7:28 Thomas Monjalon
2025-09-18 7:28 ` [PATCH 1/3] efd: fix AVX2 support Thomas Monjalon
2025-09-18 7:48 ` Bruce Richardson
2025-09-18 8:16 ` Thomas Monjalon
2025-09-18 7:28 ` [PATCH 2/3] member: remove AVX2 build-time checks Thomas Monjalon
2025-09-18 7:49 ` Bruce Richardson
2025-09-18 7:28 ` [PATCH 3/3] member: hide internal macro Thomas Monjalon
2025-09-18 7:50 ` Bruce Richardson
2025-09-18 8:10 ` Thomas Monjalon [this message]
2025-09-18 8:59 ` [PATCH 0/3] lib: fix AVX2 checks and macro exposure Bruce Richardson
2025-09-18 9:08 ` [PATCH v2 0/4] " Thomas Monjalon
2025-09-18 9:08 ` [PATCH v2 1/4] efd: fix AVX2 support Thomas Monjalon
2025-09-18 9:40 ` Thomas Monjalon
2025-09-18 9:47 ` Thomas Monjalon
2025-09-18 9:08 ` [PATCH v2 2/4] efd: remove AVX2 build-time check Thomas Monjalon
2025-09-18 9:08 ` [PATCH v2 3/4] member: remove AVX2 build-time checks Thomas Monjalon
2025-09-18 9:08 ` [PATCH v2 4/4] member: hide internal macro Thomas Monjalon
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