From patchwork Mon Mar 4 17:52:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tyler Retzlaff X-Patchwork-Id: 137937 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 6948D43B9B; Mon, 4 Mar 2024 18:55:35 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 881C642E74; Mon, 4 Mar 2024 18:53:20 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id BF67440F16 for ; Mon, 4 Mar 2024 18:52:52 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1086) id C6FC420B74DE; Mon, 4 Mar 2024 09:52:50 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com C6FC420B74DE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1709574771; bh=bSuUXVLJJSwwR4ZuK8qrOHwrGnVRb77P8r+C3FcP200=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IrTD35KY9sYl8v7lmI7m8nZ8r5g8QNtmpP99qBsmYlezvAmLMwE443rjuYuiZiAjt Wim+sXCvG8MDRf0FDqifEWBiinwO9rUaeNaUAxlh9rohYCBbiS6InrBUgcbsOacUsI 6Fv0aX6vH7cL60VDGNsCW3648aj62wxUgrVtPI+o= 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 v7 30/39] ipsec: use C11 alignas Date: Mon, 4 Mar 2024 09:52:35 -0800 Message-Id: <1709574764-9041-31-git-send-email-roretzla@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1709574764-9041-1-git-send-email-roretzla@linux.microsoft.com> References: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com> <1709574764-9041-1-git-send-email-roretzla@linux.microsoft.com> MIME-Version: 1.0 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 The current location used for __rte_aligned(a) for alignment of types and variables is not compatible with MSVC. There is only a single location accepted by both toolchains. For variables standard C11 offers alignas(a) supported by conformant compilers i.e. both MSVC and GCC. For types the standard offers no alignment facility that compatibly interoperates with C and C++ but may be achieved by relocating the placement of __rte_aligned(a) to the aforementioned location accepted by all currently supported toolchains. To allow alignment for both compilers do the following: * 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: Morten Brørup Acked-by: Konstantin Ananyev --- lib/ipsec/rte_ipsec.h | 4 ++-- lib/ipsec/sa.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/ipsec/rte_ipsec.h b/lib/ipsec/rte_ipsec.h index 44cecab..f15f6f2 100644 --- a/lib/ipsec/rte_ipsec.h +++ b/lib/ipsec/rte_ipsec.h @@ -55,7 +55,7 @@ struct rte_ipsec_sa_pkt_func { * - pointer to security/crypto session, plus other related data * - session/device specific functions to prepare/process IPsec packets. */ -struct rte_ipsec_session { +struct __rte_cache_aligned rte_ipsec_session { /** * SA that session belongs to. * Note that multiple sessions can belong to the same SA. @@ -77,7 +77,7 @@ struct rte_ipsec_session { }; /** functions to prepare/process IPsec packets */ struct rte_ipsec_sa_pkt_func pkt_func; -} __rte_cache_aligned; +}; /** * Checks that inside given rte_ipsec_session crypto/security fields diff --git a/lib/ipsec/sa.h b/lib/ipsec/sa.h index 4b30bea..2560d33 100644 --- a/lib/ipsec/sa.h +++ b/lib/ipsec/sa.h @@ -75,7 +75,7 @@ enum sa_algo_type { ALGO_TYPE_MAX }; -struct rte_ipsec_sa { +struct __rte_cache_aligned rte_ipsec_sa { uint64_t type; /* type of given SA */ uint64_t udata; /* user defined */ @@ -141,7 +141,7 @@ struct rte_ipsec_sa { } errors; } statistics; -} __rte_cache_aligned; +}; int ipsec_sa_pkt_func_select(const struct rte_ipsec_session *ss,