forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.4 KiB
71 lines
1.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Huawei HiNIC PCI Express Linux driver |
|
* Copyright(c) 2017 Huawei Technologies Co., Ltd |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/types.h> |
|
#include <asm/byteorder.h> |
|
|
|
#include "hinic_common.h" |
|
|
|
/** |
|
* hinic_cpu_to_be32 - convert data to big endian 32 bit format |
|
* @data: the data to convert |
|
* @len: length of data to convert |
|
**/ |
|
void hinic_cpu_to_be32(void *data, int len) |
|
{ |
|
u32 *mem = data; |
|
int i; |
|
|
|
len = len / sizeof(u32); |
|
|
|
for (i = 0; i < len; i++) { |
|
*mem = cpu_to_be32(*mem); |
|
mem++; |
|
} |
|
} |
|
|
|
/** |
|
* hinic_be32_to_cpu - convert data from big endian 32 bit format |
|
* @data: the data to convert |
|
* @len: length of data to convert |
|
**/ |
|
void hinic_be32_to_cpu(void *data, int len) |
|
{ |
|
u32 *mem = data; |
|
int i; |
|
|
|
len = len / sizeof(u32); |
|
|
|
for (i = 0; i < len; i++) { |
|
*mem = be32_to_cpu(*mem); |
|
mem++; |
|
} |
|
} |
|
|
|
/** |
|
* hinic_set_sge - set dma area in scatter gather entry |
|
* @sge: scatter gather entry |
|
* @addr: dma address |
|
* @len: length of relevant data in the dma address |
|
**/ |
|
void hinic_set_sge(struct hinic_sge *sge, dma_addr_t addr, int len) |
|
{ |
|
sge->hi_addr = upper_32_bits(addr); |
|
sge->lo_addr = lower_32_bits(addr); |
|
sge->len = len; |
|
} |
|
|
|
/** |
|
* hinic_sge_to_dma - get dma address from scatter gather entry |
|
* @sge: scatter gather entry |
|
* |
|
* Return dma address of sg entry |
|
**/ |
|
dma_addr_t hinic_sge_to_dma(struct hinic_sge *sge) |
|
{ |
|
return (dma_addr_t)((((u64)sge->hi_addr) << 32) | sge->lo_addr); |
|
}
|
|
|