Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Huawei HiNIC PCI Express Linux driver
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* Copyright(c) 2017 Huawei Technologies Co., Ltd
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#include "hinic_common.h"
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/**
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* hinic_cpu_to_be32 - convert data to big endian 32 bit format
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* @data: the data to convert
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* @len: length of data to convert
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**/
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void hinic_cpu_to_be32(void *data, int len)
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{
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u32 *mem = data;
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int i;
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len = len / sizeof(u32);
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for (i = 0; i < len; i++) {
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*mem = cpu_to_be32(*mem);
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mem++;
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}
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}
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/**
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* hinic_be32_to_cpu - convert data from big endian 32 bit format
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* @data: the data to convert
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* @len: length of data to convert
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**/
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void hinic_be32_to_cpu(void *data, int len)
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{
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u32 *mem = data;
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int i;
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len = len / sizeof(u32);
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for (i = 0; i < len; i++) {
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*mem = be32_to_cpu(*mem);
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mem++;
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}
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}
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/**
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* hinic_set_sge - set dma area in scatter gather entry
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* @sge: scatter gather entry
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* @addr: dma address
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* @len: length of relevant data in the dma address
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**/
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void hinic_set_sge(struct hinic_sge *sge, dma_addr_t addr, int len)
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{
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sge->hi_addr = upper_32_bits(addr);
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sge->lo_addr = lower_32_bits(addr);
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sge->len = len;
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}
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/**
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* hinic_sge_to_dma - get dma address from scatter gather entry
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* @sge: scatter gather entry
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*
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* Return dma address of sg entry
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**/
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dma_addr_t hinic_sge_to_dma(struct hinic_sge *sge)
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{
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return (dma_addr_t)((((u64)sge->hi_addr) << 32) | sge->lo_addr);
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}
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