比方PCI driver,USB driver这些非常有意思的模块。至于架构的话,还是那句话,我们由点到面,把细节搞清晰了,事实上架构就逐渐清晰了。心急吃不了热豆腐。慢慢来。 [右键点击图片,在新窗体打开是能够放大看的]
The present invention is a system and method that minimizes discarding of a pending read transaction in a peripheral component interconnect (PCI) bus architecture due to an arrival of a write request while maintaining appropriate transaction ordering. The read/write optimizing system and method of ...
typedefHRESULT(CALLBACK *HDV_PCI_READ_CONFIG_SPACE)( _In_opt_void* DeviceContext, _In_ UINT32 Offset, _Out_ UINT32* Value ); Parameters ParameterDescription DeviceContextContext pointer that was supplied to HdvCreateDeviceInstance. OffsetOffset in bytes from the base of the bar to read. ...
③设备直通、SRIOV：借助硬件技术，如intel的VT-d技术实现PCI设备直接挂载给虚拟机。 本文主要聚焦全模拟。
read_register: Read a register value and return a simple integer write_register: Write a register value set_register_bit: 'set' a register bit within an address clear_register_bit: 'clear' a register bit within an address enable_register_bit: 'sets' or 'clears' a register bit within an...
int32 pdiag_pcicfg_read(device_instance, reg_offset, datasize, data) pdiag_addr_tdevice_instance; ulongreg_offset; intdatasize; uchar*data; Description Thepdiag_pcicfg_read() function reads 8, 16, or 32 bits of a PCI Configuration register for this particular resource. Thereg_offsetparameter...
C6455 PCI Master Read 我的设备是一块有C6455的板卡和一块PC主机通过PCI通信,DSP 通过 Master方式向PC端写没有问题,PC向DSP读、写也没有问题。但是DSP 采用EDMA主动读PC的内存,读回来的数据全是0(PC端数据不是0),采用地址直读的方式,读出来的数据也不对。跪求大神帮忙解决!!!谢谢!!!
int32 pdiag_pcicfg_read(device_instance, reg_offset, datasize, data) pdiag_addr_tdevice_instance; ulongreg_offset; intdatasize; uchar*data; description pdiag_pcicfg_read() 関数は、この特定のリソースの PCI 構成レジスターの 8 ビット、16 ビット、または 32 ビットを読み取ります。reg_...
pciconfig_read() On success, zero is returned. On error, -1 is returned anderrnois set to indicate the error.pciconfig_write() On success, zero is returned. On error, -1 is returned anderrnois set to indicate the error.pciconfig_iobase() Returns information on locations of various I...
我注意到对 PCI 配置空间寄存器的访问未与4B 边界对齐、这会导致读取错误、例如状态寄存器。 在使用 PCI_BUS_READ_CONFIG_DWORD 实现访问时、这些访问被正确读取。 考虑到这只是与 Linux 版本相关的问题、我已经了解了来自较新内核的相同代码、它们是相同的。 但是、在运行内核4.16.7的 PC 上、所有 PCI...