From patchwork Wed Feb 14 04:17:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Retzlaff X-Patchwork-Id: 136701 X-Patchwork-Delegate: thomas@monjalon.net 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 893EC43B1F; Wed, 14 Feb 2024 05:18:44 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7BD5442F76; Wed, 14 Feb 2024 05:18:05 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 75AB542F0C for ; Wed, 14 Feb 2024 05:17:53 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1086) id 3A26520B200A; Tue, 13 Feb 2024 20:17:51 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 3A26520B200A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1707884272; bh=qMsVWtEZzE8Y9ASDmYmK1l6RnXLi76f8dnyF+d2Jxp4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ca46BSB+zn+HHHmrJA9XPuPCDP9Toflb4fA4C54Z7T0mRRy6DCYM2MrTPTs1f67dg VzOS7ElvxQbRpj5M6J8qfaYMvSGiijRAwWJ6r35aspSfwgJfhZ6tzozDgm+UgWeych gTKp9mFVq1tAuaoglDwRm0X2Hvz0pwbHfuVL3sBQ= 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 v2 11/14] dmadev: use C11 alignas Date: Tue, 13 Feb 2024 20:17:47 -0800 Message-Id: <1707884270-27189-12-git-send-email-roretzla@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1707884270-27189-1-git-send-email-roretzla@linux.microsoft.com> References: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com> <1707884270-27189-1-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 Acked-by: Chengwen Feng --- lib/dmadev/rte_dmadev_core.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/dmadev/rte_dmadev_core.h b/lib/dmadev/rte_dmadev_core.h index 0647856..1ba2c1f 100644 --- a/lib/dmadev/rte_dmadev_core.h +++ b/lib/dmadev/rte_dmadev_core.h @@ -61,7 +61,7 @@ typedef uint16_t (*rte_dma_completed_status_t)(void *dev_private, * The 'dev_private' field was placed in the first cache line to optimize * performance because the PMD mainly depends on this field. */ -struct rte_dma_fp_object { +struct __rte_aligned(128) rte_dma_fp_object { /** PMD-specific private data. The driver should copy * rte_dma_dev.data->dev_private to this field during initialization. */ @@ -73,7 +73,7 @@ struct rte_dma_fp_object { rte_dma_completed_t completed; rte_dma_completed_status_t completed_status; rte_dma_burst_capacity_t burst_capacity; -} __rte_aligned(128); +}; extern struct rte_dma_fp_object *rte_dma_fp_objs;