ath9k网卡驱动相关

因最近需要对ath9k的网卡驱动进行一些修改，但是网上资料比较少也比较零散，所以在这里整理一下并加上一些自己的理解，有助于自己的分析。

(1)：ath_softc是硬件与MAC层进行交互的中间载体,很多有用的

网络参数都可以从ath_softc中得到，对于进一步的网卡驱动开发，收集网络数据等很有帮助。

定义位置：drivers/net/wireless/ath/ath9k/ath9k.h 具体定义如下：

struct ath_softc {struct ieee80211_hw *hw;    //保存硬件信息struct device *dev;         //当前工作的设备u32 chan_bw;                // 信道带宽int chan_idx;               // 信道序号int chan_is_ht;             // 是否使用high_throughput模式 即绿野模式struct survey_info *cur_survey;struct survey_info survey[ATH9K_NUM_CHANNELS];struct tasklet_struct intr_tq;   struct tasklet_struct bcon_tasklet;   //结构体定义在 include <linux/interrupt.h>  用于中断管理struct ath_hw *sc_ah;                //hw的包装结构体void __iomem *mem;                   //内存区域int irq;spinlock_t sc_serial_rw;spinlock_t sc_pm_lock;spinlock_t sc_pcu_lock;             //进行数据读取，或者处理skb时需要的锁struct mutex mutex;struct work_struct paprd_work;struct work_struct hw_check_work;struct work_struct hw_reset_work;   //执行不同工作的工作队列 以后在代码中具体解释struct completion paprd_complete;unsigned int hw_busy_count;u32 intrstatus;u32 sc_flags; /* SC_OP_* */u16 ps_flags; /* PS_* */u16 curtxpow;bool ps_enabled;bool ps_idle;short nbcnvifs;short nvifs;unsigned long ps_usecount;struct ath_config config;struct ath_rx rx;struct ath_tx tx;struct ath_beacon beacon;struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];     //当前支持的带宽#ifdef CONFIG_MAC80211_LEDSconst char *led_default_trigger;struct list_head leds;
#endifstruct ath9k_hw_cal_data caldata;int last_rssi;#ifdef CONFIG_ATH9K_DEBUGFSstruct ath9k_debug debug;spinlock_t nodes_lock;struct list_head nodes; /* basically, stations */unsigned int tx_complete_poll_work_seen;
#endifstruct ath_beacon_config cur_beacon_conf;struct delayed_work tx_complete_work;struct delayed_work hw_pll_work;struct ath_btcoex btcoex;struct ath_mci_coex mci_coex;struct ath_descdma txsdma;struct ath_ant_comb ant_comb;u8 ant_tx, ant_rx;
};

(2): * struct ieee80211_hw - hardware information and state
*
* This structure contains the configuration and hardware
* information for an 802.11 PHY.
*
* @wiphy: This points to the &struct wiphy allocated for this
* 802.11 PHY. You must fill in the @perm_addr and @dev
* members of this structure using SET_IEEE80211_DEV()
* and SET_IEEE80211_PERM_ADDR(). Additionally, all supported
* bands (with channels, bitrates) are registered here.
*
* @conf: &struct ieee80211_conf, device configuration, don't use.
*
* @priv: pointer to private area that was allocated for driver use
* along with this structure.
*
* @flags: hardware flags, see &enum ieee80211_hw_flags.
*
* @extra_tx_headroom: headroom to reserve in each transmit skb
* for use by the driver (e.g. for transmit headers.)
*
* @extra_beacon_tailroom: tailroom to reserve in each beacon tx skb.
* Can be used by drivers to add extra IEs.
*
* @max_signal: Maximum value for signal (rssi) in RX information, used
* only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB
*
* @max_listen_interval: max listen interval in units of beacon interval
* that HW supports
*
* @queues: number of available hardware transmit queues for
* data packets. WMM/QoS requires at least four, these
* queues need to have configurable access parameters.
*
* @rate_control_algorithm: rate control algorithm for this hardware.
* If unset (NULL), the default algorithm will be used. Must be
* set before calling ieee80211_register_hw().
*
* @vif_data_size: size (in bytes) of the drv_priv data area
* within &struct ieee80211_vif.
* @sta_data_size: size (in bytes) of the drv_priv data area
* within &struct ieee80211_sta.
* @chanctx_data_size: size (in bytes) of the drv_priv data area
* within &struct ieee80211_chanctx_conf.
* @txq_data_size: size (in bytes) of the drv_priv data area
* within @struct ieee80211_txq.
*
* @max_rates: maximum number of alternate rate retry stages the hw
* can handle.
* @max_report_rates: maximum number of alternate rate retry stages
* the hw can report back.
* @max_rate_tries: maximum number of tries for each stage
*
* @max_rx_aggregation_subframes: maximum buffer size (number of
* sub-frames) to be used for A-MPDU block ack receiver
* aggregation.
* This is only relevant if the device has restrictions on the
* number of subframes, if it relies on mac80211 to do reordering
* it shouldn't be set.
*
* @max_tx_aggregation_subframes: maximum number of subframes in an
* aggregate an HT driver will transmit, used by the peer as a
* hint to size its reorder buffer.
*
* @offchannel_tx_hw_queue: HW queue ID to use for offchannel TX
* (if %IEEE80211_HW_QUEUE_CONTROL is set)
*
* @radiotap_mcs_details: lists which MCS information can the HW
* reports, by default it is set to _MCS, _GI and _BW but doesn't
* include _FMT. Use %IEEE80211_RADIOTAP_MCS_HAVE_* values, only
* adding _BW is supported today.
*
* @radiotap_vht_details: lists which VHT MCS information the HW reports,
* the default is _GI | _BANDWIDTH.
* Use the %IEEE80211_RADIOTAP_VHT_KNOWN_* values.
*
* @netdev_features: netdev features to be set in each netdev created
* from this HW. Note only HW checksum features are currently
* compatible with mac80211. Other feature bits will be rejected.
*
* @uapsd_queues: This bitmap is included in (re)association frame to indicate
* for each access category if it is uAPSD trigger-enabled and delivery-
* enabled. Use IEEE80211_WMM_IE_STA_QOSINFO_AC_* to set this bitmap.
* Each bit corresponds to different AC. Value '1' in specific bit means
* that corresponding AC is both trigger- and delivery-enabled. '0' means
* neither enabled.
*
* @uapsd_max_sp_len: maximum number of total buffered frames the WMM AP may
* deliver to a WMM STA during any Service Period triggered by the WMM STA.
* Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct values.
*
* @n_cipher_schemes: a size of an array of cipher schemes definitions.
* @cipher_schemes: a pointer to an array of cipher scheme definitions
* supported by HW.
*
* @txq_ac_max_pending: maximum number of frames per AC pending in all txq
* entries for a vif.

ieee80211_hw主要是硬件的信息和状态

struct ieee80211_hw {struct ieee80211_conf conf;struct wiphy *wiphy;const char *rate_control_algorithm;void *priv;u32 flags;unsigned int extra_tx_headroom;unsigned int extra_beacon_tailroom;int vif_data_size;int sta_data_size;int chanctx_data_size;int txq_data_size;u16 queues;u16 max_listen_interval;s8 max_signal;u8 max_rates;u8 max_report_rates;u8 max_rate_tries;u8 max_rx_aggregation_subframes;u8 max_tx_aggregation_subframes;u8 offchannel_tx_hw_queue;u8 radiotap_mcs_details;u16 radiotap_vht_details;netdev_features_t netdev_features;u8 uapsd_queues;u8 uapsd_max_sp_len;u8 n_cipher_schemes;const struct ieee80211_cipher_scheme *cipher_schemes;int txq_ac_max_pending;<pre name="code" class="cpp">}

ath9k网卡驱动相关相关推荐

无线网卡的工作模式--ath9k网卡驱动开发总结（一）
最近做80211无线网络速率调整算法,有一些心得体会和经验感觉应该总结一下.希望能够坚持写完. 在ath9k的驱动中,将无线网卡的工作模式划分为五种:Ad-Hoc STATION WDS AP A ...
Linux 网卡驱动相关——03
紧接上一篇,这里简要介绍net_device 结构和网卡驱动框架. struct net_device 是一个比sk_buff 更复杂的结构,里面包含了与TCP/IP协议栈通信的接口函数,但是自从2 ...
华为服务器网卡驱动安装文件,服务器网卡驱动
服务器网卡驱动内容精选换一换 Ubuntu服务器通过Windows操作系统上的虚拟机安装的场景下,需要在Windows操作系统上安装USB网卡驱动,即RNDIS(Remote Network Dr ...
华为服务器网卡驱动安装文件,服务器版网卡驱动
服务器版网卡驱动内容精选换一换本文中所有未作特别说明的操作皆需在Host1和Host2同步进行,仅需在某台服务器单独进行的操作将注明Host1和Host2进行区分.本文命令中所涉及Mellano ...
Kali网卡驱动安装及相关问题解决（2020.1）
正文开始 kali安装过程略- 目前为止2020年1月使用用户名登录,进入ROOT模式在控制台输入指令 sudo su 1.Kali网卡驱动的安装(直接识别的请忽略此步骤) 因为我的网卡是自动识别的 ...
网卡驱动和队列层中的数据包接收
一.从网卡说起这并非是一个网卡驱动分析的专门文档,只是对网卡处理数据包的流程进行一个重点的分析.这里以Intel的e100驱动为例进行分析. 大多数网卡都是一个PCI设备,PCI设备都包含了一个标准 ...
linux 服务器安装网卡驱动,linux下安装编译网卡驱动的方法
安装linux操作系统后发现没有网卡驱动,表现为 system → Administration → Network下Hardware列表为空. 以下为安装编译网卡驱动的过程,本人是菜鸟,以下是我从网 ...
linux双网卡驱动配置,linux网卡驱动安装、双网卡绑定
本次课程包含RAID0/1/5/6/10/50/60配置实验(使用Dell R720服务器实验).Redhat/CentOS/ubuntu/windows操作系统安装.windows/linux网卡绑 ...
Linux服务器网卡驱动安装及故障排除(转)
Linux服务器网卡驱动安装及故障排除(转) 转自:http://www.ccw.com.cn/server/yyjq/htm2005/20050817_15OF4.htm感谢原创作者曹江华 Lin ...

ath9k网卡驱动相关

ath9k网卡驱动相关相关推荐

最新文章

热门文章