From patchwork Wed Feb 14 07:06:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Retzlaff X-Patchwork-Id: 136742 X-Patchwork-Delegate: david.marchand@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3842D43B27; Wed, 14 Feb 2024 08:10:42 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 702A943320; Wed, 14 Feb 2024 08:07:12 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 6A06742FB1 for ; Wed, 14 Feb 2024 08:06:27 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1086) id 0A67820B2020; Tue, 13 Feb 2024 23:06:24 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 0A67820B2020 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1707894386; bh=u1Z0MXku9x2Gkd7q71LwYzI61sDMdRz9IE6MlfQ66Uc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nJbsdKN2xlmyFD5K4Dp/OCIU57/JYJJzZx7e8E5brMdyhsETpPSS57h7vHpDwf9EK IY2nqEAsiaGYK48rQ0/iZHIZ7jMyWjLYQqKXKTncodluFC4EtzuwA95G/hBYTlofwD 3F8t9sDWiCSncfi1nBVv0egk04jIFY+G3N21Zo5M= From: Tyler Retzlaff To: dev@dpdk.org Cc: Andrew Rybchenko , Bruce Richardson , Chengwen Feng , Cristian Dumitrescu , David Christensen , David Hunt , Ferruh Yigit , Honnappa Nagarahalli , Jasvinder Singh , Jerin Jacob , Kevin Laatz , Konstantin Ananyev , Min Zhou , Ruifeng Wang , Sameh Gobriel , Stanislaw Kardach , Thomas Monjalon , Vladimir Medvedkin , Yipeng Wang , Tyler Retzlaff Subject: [PATCH v3 32/39] bpf: use C11 alignas Date: Tue, 13 Feb 2024 23:06:15 -0800 Message-Id: <1707894382-307-33-git-send-email-roretzla@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1707894382-307-1-git-send-email-roretzla@linux.microsoft.com> References: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com> <1707894382-307-1-git-send-email-roretzla@linux.microsoft.com> X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org * Move __rte_aligned from the end of {struct,union} definitions to be between {struct,union} and tag. The placement between {struct,union} and the tag allows the desired alignment to be imparted on the type regardless of the toolchain being used for all of GCC, LLVM, MSVC compilers building both C and C++. * Replace use of __rte_aligned(a) on variables/fields with alignas(a). Signed-off-by: Tyler Retzlaff --- lib/bpf/bpf_pkt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/bpf/bpf_pkt.c b/lib/bpf/bpf_pkt.c index 793a75d..aaca935 100644 --- a/lib/bpf/bpf_pkt.c +++ b/lib/bpf/bpf_pkt.c @@ -23,7 +23,7 @@ * information about installed BPF rx/tx callback */ -struct bpf_eth_cbi { +struct __rte_cache_aligned bpf_eth_cbi { /* used by both data & control path */ RTE_ATOMIC(uint32_t) use; /*usage counter */ const struct rte_eth_rxtx_callback *cb; /* callback handle */ @@ -33,7 +33,7 @@ struct bpf_eth_cbi { LIST_ENTRY(bpf_eth_cbi) link; uint16_t port; uint16_t queue; -} __rte_cache_aligned; +}; /* * Odd number means that callback is used by datapath.