From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A93C743B38; Wed, 14 Feb 2024 17:37:02 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D3FB742EC2; Wed, 14 Feb 2024 17:36:18 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 9344E427D7 for ; Wed, 14 Feb 2024 17:36:07 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1086) id 3B2DF20B2007; Wed, 14 Feb 2024 08:36:05 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 3B2DF20B2007 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1707928566; bh=UVC5g4s3GCJpjAt0YmC8pAjCzoqDbqnObzgfXUwXmXk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EA2X/CGKKr1cvYp3QwykrN2tYQwefyAwsmx+sn3Gkd4tnuIioUOyxTZcOv1+JZ70h Ahwjh8sXFZKNU2zvTDtk1gZAYQqVu7y/AQbsPnrxkpDESSQJCH/YhvfJOQ9ZBb0Eax JiAYsE6LUAOG/qtpSo6l/icbOCujle/xSniW9s3I= 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 v4 07/39] net: use C11 alignas Date: Wed, 14 Feb 2024 08:35:32 -0800 Message-Id: <1707928564-28796-8-git-send-email-roretzla@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1707928564-28796-1-git-send-email-roretzla@linux.microsoft.com> References: <1707873986-29352-1-git-send-email-roretzla@linux.microsoft.com> <1707928564-28796-1-git-send-email-roretzla@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Morten Brørup --- lib/net/net_crc_avx512.c | 14 ++++++++------ lib/net/net_crc_neon.c | 11 ++++++----- lib/net/net_crc_sse.c | 17 +++++++++-------- lib/net/rte_arp.h | 8 ++++---- lib/net/rte_ether.h | 8 ++++---- 5 files changed, 31 insertions(+), 27 deletions(-) diff --git a/lib/net/net_crc_avx512.c b/lib/net/net_crc_avx512.c index f6a3ce9..0f48ca0 100644 --- a/lib/net/net_crc_avx512.c +++ b/lib/net/net_crc_avx512.c @@ -3,6 +3,8 @@ */ +#include + #include #include "net_crc.h" @@ -20,8 +22,8 @@ struct crc_vpclmulqdq_ctx { __m128i fold_1x128b; }; -static struct crc_vpclmulqdq_ctx crc32_eth __rte_aligned(64); -static struct crc_vpclmulqdq_ctx crc16_ccitt __rte_aligned(64); +static alignas(64) struct crc_vpclmulqdq_ctx crc32_eth; +static alignas(64) struct crc_vpclmulqdq_ctx crc16_ccitt; static uint16_t byte_len_to_mask_table[] = { 0x0000, 0x0001, 0x0003, 0x0007, @@ -30,18 +32,18 @@ struct crc_vpclmulqdq_ctx { 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff}; -static const uint8_t shf_table[32] __rte_aligned(16) = { +static const alignas(16) uint8_t shf_table[32] = { 0x00, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }; -static const uint32_t mask[4] __rte_aligned(16) = { +static const alignas(16) uint32_t mask[4] = { 0xffffffff, 0xffffffff, 0x00000000, 0x00000000 }; -static const uint32_t mask2[4] __rte_aligned(16) = { +static const alignas(16) uint32_t mask2[4] = { 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff }; @@ -93,7 +95,7 @@ struct crc_vpclmulqdq_ctx { uint32_t offset; __m128i res2, res3, res4, pshufb_shf; - const uint32_t mask3[4] __rte_aligned(16) = { + const alignas(16) uint32_t mask3[4] = { 0x80808080, 0x80808080, 0x80808080, 0x80808080 }; diff --git a/lib/net/net_crc_neon.c b/lib/net/net_crc_neon.c index f61d75a..cee75dd 100644 --- a/lib/net/net_crc_neon.c +++ b/lib/net/net_crc_neon.c @@ -2,6 +2,7 @@ * Copyright(c) 2017 Cavium, Inc */ +#include #include #include @@ -19,8 +20,8 @@ struct crc_pmull_ctx { uint64x2_t rk7_rk8; }; -struct crc_pmull_ctx crc32_eth_pmull __rte_aligned(16); -struct crc_pmull_ctx crc16_ccitt_pmull __rte_aligned(16); +alignas(16) struct crc_pmull_ctx crc32_eth_pmull; +alignas(16) struct crc_pmull_ctx crc16_ccitt_pmull; /** * @brief Performs one folding round @@ -96,10 +97,10 @@ struct crc_pmull_ctx { crcr32_reduce_64_to_32(uint64x2_t data64, uint64x2_t precomp) { - static uint32_t mask1[4] __rte_aligned(16) = { + static alignas(16) uint32_t mask1[4] = { 0xffffffff, 0xffffffff, 0x00000000, 0x00000000 }; - static uint32_t mask2[4] __rte_aligned(16) = { + static alignas(16) uint32_t mask2[4] = { 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff }; uint64x2_t tmp0, tmp1, tmp2; @@ -148,7 +149,7 @@ struct crc_pmull_ctx { if (unlikely(data_len < 16)) { /* 0 to 15 bytes */ - uint8_t buffer[16] __rte_aligned(16); + alignas(16) uint8_t buffer[16]; memset(buffer, 0, sizeof(buffer)); memcpy(buffer, data, data_len); diff --git a/lib/net/net_crc_sse.c b/lib/net/net_crc_sse.c index dd75845..d673ae3 100644 --- a/lib/net/net_crc_sse.c +++ b/lib/net/net_crc_sse.c @@ -2,6 +2,7 @@ * Copyright(c) 2017-2020 Intel Corporation */ +#include #include #include @@ -18,8 +19,8 @@ struct crc_pclmulqdq_ctx { __m128i rk7_rk8; }; -static struct crc_pclmulqdq_ctx crc32_eth_pclmulqdq __rte_aligned(16); -static struct crc_pclmulqdq_ctx crc16_ccitt_pclmulqdq __rte_aligned(16); +static alignas(16) struct crc_pclmulqdq_ctx crc32_eth_pclmulqdq; +static alignas(16) struct crc_pclmulqdq_ctx crc16_ccitt_pclmulqdq; /** * @brief Performs one folding round * @@ -96,11 +97,11 @@ struct crc_pclmulqdq_ctx { static __rte_always_inline uint32_t crcr32_reduce_64_to_32(__m128i data64, __m128i precomp) { - static const uint32_t mask1[4] __rte_aligned(16) = { + static const alignas(16) uint32_t mask1[4] = { 0xffffffff, 0xffffffff, 0x00000000, 0x00000000 }; - static const uint32_t mask2[4] __rte_aligned(16) = { + static const alignas(16) uint32_t mask2[4] = { 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff }; __m128i tmp0, tmp1, tmp2; @@ -118,7 +119,7 @@ struct crc_pclmulqdq_ctx { return _mm_extract_epi32(tmp2, 2); } -static const uint8_t crc_xmm_shift_tab[48] __rte_aligned(16) = { +static const alignas(16) uint8_t crc_xmm_shift_tab[48] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, @@ -175,7 +176,7 @@ struct crc_pclmulqdq_ctx { if (unlikely(data_len < 16)) { /* 0 to 15 bytes */ - uint8_t buffer[16] __rte_aligned(16); + alignas(16) uint8_t buffer[16]; memset(buffer, 0, sizeof(buffer)); memcpy(buffer, data, data_len); @@ -212,11 +213,11 @@ struct crc_pclmulqdq_ctx { partial_bytes: if (likely(n < data_len)) { - const uint32_t mask3[4] __rte_aligned(16) = { + const alignas(16) uint32_t mask3[4] = { 0x80808080, 0x80808080, 0x80808080, 0x80808080 }; - const uint8_t shf_table[32] __rte_aligned(16) = { + const alignas(16) uint8_t shf_table[32] = { 0x00, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, diff --git a/lib/net/rte_arp.h b/lib/net/rte_arp.h index c3cd0af..668cea1 100644 --- a/lib/net/rte_arp.h +++ b/lib/net/rte_arp.h @@ -21,17 +21,17 @@ /** * ARP header IPv4 payload. */ -struct rte_arp_ipv4 { +struct __rte_aligned(2) rte_arp_ipv4 { struct rte_ether_addr arp_sha; /**< sender hardware address */ rte_be32_t arp_sip; /**< sender IP address */ struct rte_ether_addr arp_tha; /**< target hardware address */ rte_be32_t arp_tip; /**< target IP address */ -} __rte_packed __rte_aligned(2); +} __rte_packed; /** * ARP header. */ -struct rte_arp_hdr { +struct __rte_aligned(2) rte_arp_hdr { rte_be16_t arp_hardware; /**< format of hardware address */ #define RTE_ARP_HRD_ETHER 1 /**< ARP Ethernet address format */ @@ -47,7 +47,7 @@ struct rte_arp_hdr { #define RTE_ARP_OP_INVREPLY 9 /**< response identifying peer */ struct rte_arp_ipv4 arp_data; -} __rte_packed __rte_aligned(2); +} __rte_packed; /** * Make a RARP packet based on MAC addr. diff --git a/lib/net/rte_ether.h b/lib/net/rte_ether.h index ce073ea..f4c5af4 100644 --- a/lib/net/rte_ether.h +++ b/lib/net/rte_ether.h @@ -57,9 +57,9 @@ * administrator and does not contain OUIs. * See http://standards.ieee.org/regauth/groupmac/tutorial.html */ -struct rte_ether_addr { +struct __rte_aligned(2) rte_ether_addr { uint8_t addr_bytes[RTE_ETHER_ADDR_LEN]; /**< Addr bytes in tx order */ -} __rte_aligned(2); +}; #define RTE_ETHER_LOCAL_ADMIN_ADDR 0x02 /**< Locally assigned Eth. address. */ #define RTE_ETHER_GROUP_ADDR 0x01 /**< Multicast or broadcast Eth. address. */ @@ -276,11 +276,11 @@ static inline int rte_is_valid_assigned_ether_addr(const struct rte_ether_addr * * Ethernet header: Contains the destination address, source address * and frame type. */ -struct rte_ether_hdr { +struct __rte_aligned(2) rte_ether_hdr { struct rte_ether_addr dst_addr; /**< Destination address. */ struct rte_ether_addr src_addr; /**< Source address. */ rte_be16_t ether_type; /**< Frame type. */ -} __rte_aligned(2); +}; /** * Ethernet VLAN Header. -- 1.8.3.1