From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 96EFBA0526; Wed, 22 Jul 2020 04:12:56 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 5DAB41BFBA; Wed, 22 Jul 2020 04:12:55 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 5B7EC2C01; Wed, 22 Jul 2020 04:12:53 +0200 (CEST) IronPort-SDR: 0NrqmZEDWEj8nwAFGniJv/xx67MXAXwumW+NkxwvYJfSjIDvcV4vf9DuhLk9c6JbeSoOSJ+MzF 1nlQUmhXDnNw== X-IronPort-AV: E=McAfee;i="6000,8403,9689"; a="148197055" X-IronPort-AV: E=Sophos;i="5.75,381,1589266800"; d="scan'208";a="148197055" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2020 19:12:52 -0700 IronPort-SDR: pQlo0GjsxPhAG+f74NVQP36KdNYSAsHdA5OndX/euVRGVtQxUEuOoTHk0CBLiIc1tTvG2njdsR iKX4IQ6RrV+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,381,1589266800"; d="scan'208";a="310456302" Received: from dpdk-xuting-second.sh.intel.com ([10.67.116.154]) by fmsmga004.fm.intel.com with ESMTP; 21 Jul 2020 19:12:50 -0700 From: Ting Xu To: dev@dpdk.org Cc: cristian.dumitrescu@intel.com, Ting Xu , stable@dpdk.org Date: Wed, 22 Jul 2020 10:16:28 +0800 Message-Id: <20200722021628.17194-1-ting.xu@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200616162705.83575-1-ting.xu@intel.com> References: <20200616162705.83575-1-ting.xu@intel.com> Subject: [dpdk-dev] [PATCH v4] lib/table: fix cache alignment issue 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" When create softnic hash table with 16 keys, it failed on 32-bit environment, because the pointer field in structure rte_bucket_4_16 is only 32 bits. Add a padding field in 32-bit environment to keep the structure to a multiple of 64 bytes. Apply this to 8-byte and 32-byte key hash function as well. Fixes: 8aa327214c ("table: hash") Cc: stable@dpdk.org Signed-off-by: Ting Xu --- v3->v4: Change design based on comment v2->v3: Rebase v1->v2: Correct patch time --- lib/librte_table/rte_table_hash_key16.c | 17 +++++++++++++++++ lib/librte_table/rte_table_hash_key32.c | 17 +++++++++++++++++ lib/librte_table/rte_table_hash_key8.c | 16 ++++++++++++++++ 3 files changed, 50 insertions(+) diff --git a/lib/librte_table/rte_table_hash_key16.c b/lib/librte_table/rte_table_hash_key16.c index 2cca1c924..c4384b114 100644 --- a/lib/librte_table/rte_table_hash_key16.c +++ b/lib/librte_table/rte_table_hash_key16.c @@ -33,6 +33,7 @@ #endif +#ifdef RTE_ARCH_64 struct rte_bucket_4_16 { /* Cache line 0 */ uint64_t signature[4 + 1]; @@ -46,6 +47,22 @@ struct rte_bucket_4_16 { /* Cache line 2 */ uint8_t data[0]; }; +#else +struct rte_bucket_4_16 { + /* Cache line 0 */ + uint64_t signature[4 + 1]; + uint64_t lru_list; + struct rte_bucket_4_16 *next; + uint32_t pad; + uint64_t next_valid; + + /* Cache line 1 */ + uint64_t key[4][2]; + + /* Cache line 2 */ + uint8_t data[0]; +}; +#endif struct rte_table_hash { struct rte_table_stats stats; diff --git a/lib/librte_table/rte_table_hash_key32.c b/lib/librte_table/rte_table_hash_key32.c index a137c5028..3e0031fe1 100644 --- a/lib/librte_table/rte_table_hash_key32.c +++ b/lib/librte_table/rte_table_hash_key32.c @@ -33,6 +33,7 @@ #endif +#ifdef RTE_ARCH_64 struct rte_bucket_4_32 { /* Cache line 0 */ uint64_t signature[4 + 1]; @@ -46,6 +47,22 @@ struct rte_bucket_4_32 { /* Cache line 3 */ uint8_t data[0]; }; +#else +struct rte_bucket_4_32 { + /* Cache line 0 */ + uint64_t signature[4 + 1]; + uint64_t lru_list; + struct rte_bucket_4_32 *next; + uint32_t pad; + uint64_t next_valid; + + /* Cache lines 1 and 2 */ + uint64_t key[4][4]; + + /* Cache line 3 */ + uint8_t data[0]; +}; +#endif struct rte_table_hash { struct rte_table_stats stats; diff --git a/lib/librte_table/rte_table_hash_key8.c b/lib/librte_table/rte_table_hash_key8.c index 1811ad8d0..34e3ed1af 100644 --- a/lib/librte_table/rte_table_hash_key8.c +++ b/lib/librte_table/rte_table_hash_key8.c @@ -31,6 +31,7 @@ #endif +#ifdef RTE_ARCH_64 struct rte_bucket_4_8 { /* Cache line 0 */ uint64_t signature; @@ -43,6 +44,21 @@ struct rte_bucket_4_8 { /* Cache line 1 */ uint8_t data[0]; }; +#else +struct rte_bucket_4_8 { + /* Cache line 0 */ + uint64_t signature; + uint64_t lru_list; + struct rte_bucket_4_8 *next; + uint32_t pad; + uint64_t next_valid; + + uint64_t key[4]; + + /* Cache line 1 */ + uint8_t data[0]; +}; +#endif struct rte_table_hash { struct rte_table_stats stats; -- 2.17.1