475 lines
17 KiB
C
475 lines
17 KiB
C
/*
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* Copyright (c) Hisilicon Technologies Co., Ltd. 2020-2020. All rights reserved.
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* Description: Header file for oal_netbuff.c.
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* Author: Hisilicon
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* Create: 2020-09-11
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*/
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#ifndef __OAL_NETBUFF_H__
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#define __OAL_NETBUFF_H__
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/* 头文件包含 */
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include "securec.h"
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#include "hi_types_base.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif
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#endif
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/* 宏定义 */
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#define ETH_P_CONTROL 0x0016 /* Card specific control frames */
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#define oal_netbuf_list_num(_pst_head) ((_pst_head)->qlen)
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#define oal_net_dev_priv(_pst_dev) ((_pst_dev)->ml_priv)
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#define oal_net_dev_wireless_dev(_pst_dev) ((_pst_dev)->ieee80211_ptr)
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#define oal_netbuf_next(_pst_buf) ((_pst_buf)->next)
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#define oal_netbuf_prev(_pst_buf) ((_pst_buf)->prev)
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#define oal_netbuf_head_next(_pst_buf_head) ((_pst_buf_head)->next)
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#define oal_netbuf_head_prev(_pst_buf_head) ((_pst_buf_head)->prev)
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#define oal_netbuf_protocol(_pst_buf) ((_pst_buf)->protocol)
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#define oal_netbuf_last_rx(_pst_buf) ((_pst_buf)->last_rx)
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#define oal_netbuf_data(_pst_buf) ((_pst_buf)->data)
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#define oal_netbuf_header(_pst_buf) ((_pst_buf)->data)
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#define oal_netbuf_payload(_pst_buf) ((_pst_buf)->data)
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#define oal_netbuf_cb(_pst_buf) ((_pst_buf)->cb)
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#define oal_netbuf_cb_size() (sizeof(((oal_netbuf_stru*)0)->cb))
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#define oal_netbuf_len(_pst_buf) ((_pst_buf)->len)
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#define oal_netbuf_priority(_pst_buf) ((_pst_buf)->priority)
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#define OAL_NETBUF_TAIL skb_tail_pointer
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#define OAL_NETBUF_QUEUE_TAIL skb_queue_tail
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#define OAL_NETBUF_QUEUE_HEAD_INIT skb_queue_head_init
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#define OAL_NETBUF_DEQUEUE skb_dequeue
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/* 主机与网络字节序转换 */
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#ifdef HAVE_PCLINT_CHECK
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#define oal_host2net_short(_x) _x
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#define oal_net2host_short(_x) _x
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#define oal_host2net_long(_x) _x
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#define oal_net2host_long(_x) _x
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#define oal_high_half_byte(a) a
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#define oal_low_half_byte(a) a
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#else
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#define oal_host2net_short(_x) hi_swap_byteorder_16(_x)
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#define oal_net2host_short(_x) hi_swap_byteorder_16(_x)
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#define oal_host2net_long(_x) hi_swap_byteorder_32(_x)
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#define oal_net2host_long(_x) hi_swap_byteorder_32(_x)
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#define oal_high_half_byte(a) (((a) & 0xF0) >> 4)
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#define oal_low_half_byte(a) ((a) & 0x0F)
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#endif
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typedef hi_u8 oal_mem_state_enum_uint8;
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/* 结构体定义 */
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typedef gfp_t oal_gfp_enum_uint8;
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typedef struct sk_buff oal_netbuf_stru;
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typedef struct sk_buff_head oal_netbuf_head_stru;
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typedef struct oal_netbuf_stru_tag {
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struct oal_netbuf_stru_tag* next;
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oal_mem_state_enum_uint8 mem_state_flag; /* 内存块状态 */
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hi_u8 subpool_id : 4; /* 记录所属子池id */
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hi_u8 is_high_priority : 1;
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hi_u8 bit_resv : 3;
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hi_u16 us_index;
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} oal_dev_netbuf_stru;
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typedef struct {
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oal_dev_netbuf_stru* next;
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oal_dev_netbuf_stru* prev;
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hi_u32 num;
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} oal_dev_netbuf_head_stru;
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typedef struct oal_ip_header {
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hi_u8 us_ihl : 4,
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version_ihl : 4;
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/* liuming modifed proxyst end */
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hi_u8 tos;
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hi_u16 us_tot_len;
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hi_u16 us_id;
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hi_u16 us_frag_off;
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hi_u8 ttl;
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hi_u8 protocol;
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hi_u16 us_check;
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hi_u32 saddr;
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hi_u32 daddr;
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/* The options start here */
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} oal_ip_header_stru;
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typedef struct oal_tcp_header {
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hi_u16 us_sport;
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hi_u16 us_dport;
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hi_u32 seqnum;
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hi_u32 acknum;
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hi_u8 offset;
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hi_u8 flags;
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hi_u16 us_window;
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hi_u16 us_check;
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hi_u16 us_urgent;
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} oal_tcp_header_stru;
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/* inline 函数定义 */
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static inline hi_void oal_netbuf_copy_queue_mapping(oal_netbuf_stru* netbuf_to,
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const oal_netbuf_stru* netbuf_from)
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{
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skb_copy_queue_mapping(netbuf_to, netbuf_from);
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}
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/*****************************************************************************
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功能描述 : 在缓冲区尾部增加数据
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输入参数 : pst_netbuf: 缓冲区结构体指针
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ul_len: 需要增加数据的长度
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*****************************************************************************/
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static inline hi_u8* oal_netbuf_put(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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return skb_put(netbuf, len);
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}
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/*****************************************************************************
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功能描述 : 在缓冲区开头增加数据
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*****************************************************************************/
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static inline hi_u8* oal_netbuf_push(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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return skb_push(netbuf, len);
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}
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/*****************************************************************************
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功能描述 : 从skb头部取出数据
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输入参数 : pst_netbuf: skb结构体指针
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*****************************************************************************/
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static inline hi_u8* oal_netbuf_pull(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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if (len > netbuf->len) {
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return HI_NULL;
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}
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netbuf->len -= len;
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return (netbuf->data += len);
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}
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static inline hi_void oal_set_netbuf_prev(oal_netbuf_stru* netbuf, oal_netbuf_stru* prev)
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{
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netbuf->prev = prev;
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}
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/*****************************************************************************
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功能描述 : 判断skb list是否为空
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*****************************************************************************/
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static inline hi_s32 oal_netbuf_list_empty(const oal_netbuf_head_stru* list_head)
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{
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return skb_queue_empty(list_head);
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}
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/*****************************************************************************
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函 数 名 : oal_netbuf_reserve
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功能描述 : 将报文结构体的data指针和tail指针同时下移
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输入参数 : pst_netbuf报文结构体指针
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len: 预留长度
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*****************************************************************************/
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static inline hi_void oal_netbuf_reserve(oal_netbuf_stru* netbuf, hi_u32 l_len)
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{
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skb_reserve(netbuf, l_len);
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}
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/*****************************************************************************
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功能描述 : 释放报文结构体内存空间, 非硬中断环境下使用
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输入参数 : pst_netbuf: 报文结构体指针
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返 回 值 : 成功返回HI_SUCCESS；失败返回HI_ERR_CODE_PTR_NULL
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*****************************************************************************/
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static inline hi_u32 oal_netbuf_free(oal_netbuf_stru* netbuf)
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{
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/* 释放调用alloc_skb接口申请的内存 */
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dev_kfree_skb(netbuf);
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return HI_SUCCESS;
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}
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/*****************************************************************************
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功能描述 : 释放报文结构体内存空间，可用于中断环境
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*****************************************************************************/
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static inline hi_void oal_netbuf_free_any(oal_netbuf_stru* netbuf)
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{
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dev_kfree_skb_any(netbuf);
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}
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/*****************************************************************************
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功能描述 : 判断一个skb是否为克隆的，是则copy一份新的skb，否则直接返回传入的skb
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输入参数 : pst_netbuf: skb结构体指针
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en_pri: 内存分配的优先级
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_unshare(oal_netbuf_stru* netbuf, oal_gfp_enum_uint8 pri)
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{
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return skb_unshare(netbuf, pri);
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}
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/*****************************************************************************
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功能描述 : 获取头部空间大小
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*****************************************************************************/
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static inline hi_u32 oal_netbuf_headroom(const oal_netbuf_stru* netbuf)
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{
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return (hi_u32)skb_headroom(netbuf);
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}
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/*****************************************************************************
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功能描述 : 获取尾部空间大小
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*****************************************************************************/
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static inline hi_u32 oal_netbuf_tailroom(const oal_netbuf_stru* netbuf)
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{
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return (hi_u32)skb_tailroom(netbuf);
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}
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/*****************************************************************************
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功能描述 : skb尾部空间扩充
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_realloc_tailroom(oal_netbuf_stru* netbuf, hi_u32 tailroom)
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{
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if (pskb_expand_head(netbuf, 0, tailroom, GFP_ATOMIC)) {
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netbuf = HI_NULL;
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}
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return netbuf;
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}
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/*****************************************************************************
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功能描述 : 将skb加入skb链表中
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输入参数 : pst_new: 要插入的新skb指针
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pst_prev: 尾节点
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pst_head: skb链表头指针
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*****************************************************************************/
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static inline hi_void oal_netbuf_add_to_list(oal_netbuf_stru* netbuf, oal_netbuf_stru* prev, oal_netbuf_stru* next)
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{
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netbuf->next = next;
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netbuf->prev = prev;
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next->prev = netbuf;
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prev->next = netbuf;
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}
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/*****************************************************************************
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功能描述 : 将skb加入skb链表中的尾部
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输入参数 : pst_new: 要插入的新skb指针
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pst_head: skb链表头指针
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*****************************************************************************/
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static inline hi_void oal_netbuf_add_to_list_tail(oal_netbuf_stru* netbuf, oal_netbuf_head_stru* head)
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{
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skb_queue_tail(head, netbuf);
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}
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/*****************************************************************************
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功能描述 : skb链表出队
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_delist(oal_netbuf_head_stru* list_head)
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{
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return skb_dequeue(list_head);
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}
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/*****************************************************************************
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功能描述 : skb链表从头部入队
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*****************************************************************************/
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static inline hi_void oal_netbuf_addlist(oal_netbuf_head_stru* list_head, oal_netbuf_stru* netbuf)
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{
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skb_queue_head(list_head, netbuf);
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}
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/*****************************************************************************
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功能描述 : 初始化skb队列头
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*****************************************************************************/
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static inline hi_void oal_netbuf_list_head_init(oal_netbuf_head_stru* list_head)
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{
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skb_queue_head_init(list_head);
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}
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/*****************************************************************************
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功能描述 : 返回链表中指定节点的下一个节点
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_list_next(const oal_netbuf_stru* netbuf)
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{
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return netbuf->next;
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}
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/*****************************************************************************
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功能描述 : add a netbuf to skb list
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*****************************************************************************/
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static inline hi_void oal_netbuf_list_tail(oal_netbuf_head_stru* list, oal_netbuf_stru* netbuf)
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{
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skb_queue_tail(list, netbuf);
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}
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/*****************************************************************************
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功能描述 : join two skb lists and reinitialise the emptied list
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输入参数 : @list: the new list to add
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@head: the place to add it in the first list
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输出参数 : The list at @list is reinitialised
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*****************************************************************************/
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static inline hi_void oal_netbuf_splice_init(oal_netbuf_head_stru* list, oal_netbuf_head_stru* head)
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{
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skb_queue_splice_init(list, head);
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}
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/*****************************************************************************
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功能描述 : join two skb lists and reinitialise the emptied list
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输入参数 : @list: the new list to add
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@head: the place to add it in the first list
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输出参数 : The list at @list is reinitialised
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*****************************************************************************/
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static inline hi_void oal_netbuf_queue_splice_tail_init(oal_netbuf_head_stru* list, oal_netbuf_head_stru* head)
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{
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skb_queue_splice_tail_init(list, head);
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}
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/*****************************************************************************
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功能描述 : remove skb from list tail
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输入参数 : @head: the place to add it in the first list
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输出参数 : The list at @list is reinitialised
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返 回 值 : the netbuf removed from the list
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_delist_tail(oal_netbuf_head_stru *head)
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{
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return skb_dequeue_tail(head);
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}
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/*****************************************************************************
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功能描述 : move head buffs to list
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输入参数 : @list: the new list to add
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@head: the place to add it in the first list
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输出参数 : The list at @list is reinitialised
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*****************************************************************************/
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static inline hi_void oal_netbuf_splice_sync(oal_netbuf_head_stru* list, oal_netbuf_head_stru* head)
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{
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oal_netbuf_stru* netbuf = HI_NULL;
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for (;;) {
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netbuf = oal_netbuf_delist_tail(head);
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if (netbuf == NULL) {
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break;
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}
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oal_netbuf_addlist(list, netbuf);
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}
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}
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/*****************************************************************************
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功能描述 : init netbuf list
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*****************************************************************************/
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static inline hi_void oal_netbuf_head_init(oal_netbuf_head_stru* list)
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{
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skb_queue_head_init(list);
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}
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/*****************************************************************************
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功能描述 : 返回skb链表中的第一个元素
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输入参数 : pst_head: skb链表头指针
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返 回 值 : 链表中第一个元素
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_peek(const oal_netbuf_head_stru *head)
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{
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return skb_peek(head);
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}
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/*****************************************************************************
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功能描述 : 返回skb链表中的最后一个元素
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输入参数 : pst_head: skb链表头指针
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返 回 值 : 链表中最后一个元素
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_tail(const oal_netbuf_head_stru *head)
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{
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return skb_peek_tail(head);
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}
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/*****************************************************************************
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功能描述 : 获取netbuf双向链表中buf的个数
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*****************************************************************************/
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static inline hi_u32 oal_netbuf_get_buf_num(const oal_netbuf_head_stru *netbuf_head)
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{
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return netbuf_head->qlen;
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}
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/*****************************************************************************
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功能描述 : 获取netbuf
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*****************************************************************************/
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static inline oal_netbuf_stru* oal_netbuf_get(oal_netbuf_stru* netbuf)
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{
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return skb_get(netbuf);
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}
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/*****************************************************************************
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功能描述 : 将skb中的内容先偏移ul_offset后 按指定长度拷贝到指定内从中
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*****************************************************************************/
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static inline hi_u32 oal_netbuf_copydata(const oal_netbuf_stru *netbuf, hi_u32 offset, hi_void* dst,
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hi_u32 dst_len, hi_u32 len)
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{
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hi_void* scr = HI_NULL;
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scr = oal_netbuf_data(netbuf) + offset;
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if (memcpy_s(dst, dst_len, scr, len) != EOK) {
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return HI_FAIL;
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}
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return HI_SUCCESS;
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}
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/*****************************************************************************
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功能描述 : 剥去skb中尾部的信息
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*****************************************************************************/
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static inline hi_void oal_netbuf_trim(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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skb_trim(netbuf, netbuf->len - len);
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}
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/*****************************************************************************
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功能描述 : 将skb的数据内容长度设置为指定长度
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*****************************************************************************/
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static inline hi_void oal_netbuf_set_len(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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if (netbuf->len > len) {
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skb_trim(netbuf, len);
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} else {
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skb_put(netbuf, (len - netbuf->len));
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}
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}
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/*****************************************************************************
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功能描述 : 初始化netbuf
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*****************************************************************************/
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static inline hi_void oal_netbuf_init(oal_netbuf_stru* netbuf, hi_u32 len)
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{
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oal_netbuf_set_len(netbuf, len);
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netbuf->protocol = ETH_P_CONTROL;
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}
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static inline oal_dev_netbuf_stru* oal_get_dev_netbuf_next(const oal_dev_netbuf_stru *dev_netbuf)
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{
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return dev_netbuf->next;
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}
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/*****************************************************************************
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功能描述: 获取netbuf 链表长度
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*****************************************************************************/
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||
static inline hi_u32 oal_netbuf_list_len(const oal_netbuf_head_stru *pst_head)
|
||
{
|
||
return skb_queue_len(pst_head);
|
||
}
|
||
|
||
/*****************************************************************************
|
||
功能描述: 扩展netbuf 头部空间
|
||
*****************************************************************************/
|
||
static inline hi_s32 oal_netbuf_expand_head(oal_netbuf_stru *netbuf, hi_s32 nhead,
|
||
hi_s32 ntail, hi_s32 gfp_mask)
|
||
{
|
||
return pskb_expand_head(netbuf, nhead, ntail, gfp_mask);
|
||
}
|
||
|
||
/* 函数声明 */
|
||
oal_netbuf_stru* oal_netbuf_alloc(hi_u32 ul_size, hi_u32 l_reserve, hi_u32 l_align);
|
||
|
||
#ifdef __cplusplus
|
||
#if __cplusplus
|
||
}
|
||
#endif
|
||
#endif
|
||
|
||
#endif
|