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Mon, 11 Mar 2019 15:33:26 +0000 From: Honnappa Nagarahalli To: "Ruifeng Wang (Arm Technology China)" , "wenzhuo.lu@intel.com" , "jingjing.wu@intel.com" , "bernard.iremonger@intel.com" CC: "dev@dpdk.org" , "jerinj@marvell.com" , "hemant.agrawal@nxp.com" , nd , "Ruifeng Wang (Arm Technology China)" , Honnappa Nagarahalli , nd Thread-Topic: [PATCH v1] app/testpmd: optimized MAC swap by using neon intrinsics Thread-Index: AQHU1+KKNe14hM0QokuZDa8LU8kr36YGjw+Q Date: Mon, 11 Mar 2019 15:33:26 +0000 Message-ID: References: <1552292065-15239-1-git-send-email-ruifeng.wang@arm.com> In-Reply-To: <1552292065-15239-1-git-send-email-ruifeng.wang@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Honnappa.Nagarahalli@arm.com; x-originating-ip: [217.140.111.135] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b171ef30-3e60-486f-9754-08d6a636e7d6 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; 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DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR08MB3527; H:AM6PR08MB3672.eurprd08.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: OKHJfceR1jnw/jKlRO5csviAOw6ZHR5E5hl01G0t9zyyN9SCortseb/bAymbrVXth5/lu7ghPNuHfo4ddTCqGLyomSHuArzTIkKoVdzTayfiwXyNGP6zRhzFSEjEaV0B8XeowXWsw/x89wJMyX0DsIndzYO6Th1ATMVNmWCzOrhMCoQfuMBiqXVgcFCsLFBwbKN57LY0CXIl6es7DucV7Z4jhIDSM93ITErFOhTu77JpKaVkuHRxtlLHt+n381hZPYaHQWOVlCoNFk17ub1IAAUNalKsFgn1cL4roXMfkUUP9iOqmegjCB9hRu6cr0S1ys/pGARmVbZ5vs/ZS0RFU0mZF787/rRNE1Dv4V5iRYrqi/lcVJmow6zqOvvyx5ym5fw/GkCJgNstS5cSQzJN8/Mp412FSqILLT58aK8yEMQ= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: b171ef30-3e60-486f-9754-08d6a636e7d6 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Mar 2019 15:33:26.5847 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB3527 Subject: Re: [dpdk-dev] [PATCH v1] app/testpmd: optimized MAC swap by using neon intrinsics X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Mar 2019 15:33:28 -0000 > Improved MAC swap performance for ARM platform. > The improvement was achieved by using neon intrinsics to save CPU cycles = and > doing swap for four packets at a time. > The optimization had 15% - 20% throughput boost in testpmd MAC swap mode. >=20 > Signed-off-by: Ruifeng Wang > Reviewed-by: Gavin Hu > Reviewed-by: Phil Yang > --- > app/test-pmd/macswap.c | 4 +- > app/test-pmd/macswap_neon.h | 93 > +++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 96 insertions(+), 1 deletion(-) create mode 100644 app= /test- > pmd/macswap_neon.h >=20 > diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c index > cbb41b7..71af916 100644 > --- a/app/test-pmd/macswap.c > +++ b/app/test-pmd/macswap.c > @@ -66,8 +66,10 @@ > #include >=20 > #include "testpmd.h" > -#ifdef RTE_ARCH_X86 > +#if defined(RTE_ARCH_X86) > #include "macswap_sse.h" > +#elif defined(RTE_MACHINE_CPUFLAG_NEON) #include "macswap_neon.h" > #else > #include "macswap.h" > #endif > diff --git a/app/test-pmd/macswap_neon.h b/app/test-pmd/macswap_neon.h > new file mode 100644 index 0000000..bad1b9b > --- /dev/null > +++ b/app/test-pmd/macswap_neon.h > @@ -0,0 +1,93 @@ > +/* SPDX-License-Identifier: BSD-3-Clause > + * Copyright(c) 2019 Arm Limited This change is derived from Intel's work in macswap_sse.h. Can you please a= dd a header similar to lib/librte_lpm/rte_lpm_neon.h? > + */ > + > +#ifndef _MACSWAP_NEON_H_ > +#define _MACSWAP_NEON_H_ > +