From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerin Jacob Subject: [PATCH v5 03/25] net/thunderx/base: implement DPDK based platform abstraction for base code Date: Wed, 15 Jun 2016 00:36:18 +0530 Message-ID: <1465931200-23912-4-git-send-email-jerin.jacob@caviumnetworks.com> References: <1465826143-22159-1-git-send-email-jerin.jacob@caviumnetworks.com> <1465931200-23912-1-git-send-email-jerin.jacob@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , Jerin Jacob , Maciej Czekaj , Kamil Rytarowski , Zyta Szpak , Slawomir Rosek , Radoslaw Biernacki To: Return-path: Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2on0081.outbound.protection.outlook.com [207.46.100.81]) by dpdk.org (Postfix) with ESMTP id E08629AD2 for ; Tue, 14 Jun 2016 21:07:20 +0200 (CEST) In-Reply-To: <1465931200-23912-1-git-send-email-jerin.jacob@caviumnetworks.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Jerin Jacob Signed-off-by: Maciej Czekaj Signed-off-by: Kamil Rytarowski Signed-off-by: Zyta Szpak Signed-off-by: Slawomir Rosek Signed-off-by: Radoslaw Biernacki --- drivers/net/thunderx/base/nicvf_plat.h | 129 +++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 drivers/net/thunderx/base/nicvf_plat.h diff --git a/drivers/net/thunderx/base/nicvf_plat.h b/drivers/net/thunderx/base/nicvf_plat.h new file mode 100644 index 0000000..33fef08 --- /dev/null +++ b/drivers/net/thunderx/base/nicvf_plat.h @@ -0,0 +1,129 @@ +/* + * BSD LICENSE + * + * Copyright (C) Cavium networks Ltd. 2016. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Cavium networks nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _THUNDERX_NICVF_H +#define _THUNDERX_NICVF_H + +/* Platform/OS/arch specific abstractions */ + +/* log */ +#include +#include "../nicvf_logs.h" + +#define nicvf_log_error(s, ...) PMD_DRV_LOG(ERR, s, ##__VA_ARGS__) + +#define nicvf_log_debug(s, ...) PMD_DRV_LOG(DEBUG, s, ##__VA_ARGS__) + +#define nicvf_mbox_log(s, ...) PMD_MBOX_LOG(DEBUG, s, ##__VA_ARGS__) + +#define nicvf_log(s, ...) fprintf(stderr, s, ##__VA_ARGS__) + +/* delay */ +#include +#define nicvf_delay_us(x) rte_delay_us(x) + +/* barrier */ +#include +#define nicvf_smp_wmb() rte_smp_wmb() +#define nicvf_smp_rmb() rte_smp_rmb() + +/* utils */ +#include +#define nicvf_min(x, y) RTE_MIN(x, y) + +/* byte order */ +#include +#define nicvf_cpu_to_be_64(x) rte_cpu_to_be_64(x) +#define nicvf_be_to_cpu_64(x) rte_be_to_cpu_64(x) + +/* Constants */ +#include +#define NICVF_MAC_ADDR_SIZE ETHER_ADDR_LEN + +/* ARM64 specific functions */ +#if defined(RTE_ARCH_ARM64) +#define nicvf_prefetch_store_keep(_ptr) ({\ + asm volatile("prfm pstl1keep, %a0\n" : : "p" (_ptr)); }) + +static inline void __attribute__((always_inline)) +nicvf_addr_write(uintptr_t addr, uint64_t val) +{ + asm volatile( + "str %x[val], [%x[addr]]" + : + : [val] "r" (val), [addr] "r" (addr)); +} + +static inline uint64_t __attribute__((always_inline)) +nicvf_addr_read(uintptr_t addr) +{ + uint64_t val; + + asm volatile( + "ldr %x[val], [%x[addr]]" + : [val] "=r" (val) + : [addr] "r" (addr)); + return val; +} + +#define NICVF_LOAD_PAIR(reg1, reg2, addr) ({ \ + asm volatile( \ + "ldp %x[x1], %x[x0], [%x[p1]]" \ + : [x1]"=r"(reg1), [x0]"=r"(reg2)\ + : [p1]"r"(addr) \ + ); }) + +#else /* non optimized functions for building on non arm64 arch */ + +#define nicvf_prefetch_store_keep(_ptr) do {} while (0) + +static inline void __attribute__((always_inline)) +nicvf_addr_write(uintptr_t addr, uint64_t val) +{ + *(volatile uint64_t *)addr = val; +} + +static inline uint64_t __attribute__((always_inline)) +nicvf_addr_read(uintptr_t addr) +{ + return *(volatile uint64_t *)addr; +} + +#define NICVF_LOAD_PAIR(reg1, reg2, addr) \ +do { \ + reg1 = nicvf_addr_read((uintptr_t)addr); \ + reg2 = nicvf_addr_read((uintptr_t)addr + 8); \ +} while (0) + +#endif + +#endif /* _THUNDERX_NICVF_H */ -- 2.5.5