本文记录使用wireshark做tcpdump的简单步骤
How to assign more than 31 VFs to one VM
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本文介绍通过给虚拟机加入PCIe switch扩展总线的方法，通过这样的方法， 可以实现把多个VF挂接给一个虚拟机
PCIe INTx parse in ACPI
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本文分析Linux系统里PCIe INTx中断的ACPI解析过程
UEFI/Linux系统加载过程
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本文梳理一个UEFI加载linux启动的流程
Hixxxx PCIe + SMMU bad performance debug
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记录一个SMMU相关的性能问题的调试过程
How to use IO BAR in linux PCIe device driver
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This document shows how to use an IO BAR in PCIe device. Currently there is few devices supported IO BAR, however, when we have a card which needs to use IO BAR, this document shares a basic logic about it
PCI/SMMU ATS analysis note
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This doc is an analysis note about ATS feature in PCIe/SMMU
Use coccinelle to check patch in Ubuntu 14.04
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In Ubuntu14.04, when running coccinelle, it will fail. So we install it manually to make patch check. This note helps to remember the steps.
PCIe userspace tools: lspci, setpci and sysfs
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From mj.ucw.cz/sw/pciutils we can get the code of lspci/setpci, which are two useful tools to debug PCIe related problems. This doc just introduces these two tools and also the sysfs interfaces which can be used in PCIe problem debug.
LDD3 study note 3
这篇笔记记录驱动程序中mmap的写法，以及相关的调试过程。同样代码在： https://github.com/wangzhou/scull.git