pci expander

How does the PCI NIC work? When the motherboard network card is broken or the computer needs a dual NIC, we only need to buy a PCI card installed in the motherboard, no need to replace the motherboard. The following article mainly introduces the use of PCI card installation tutorial, there is a need to install PCI card

1. Key data structure PCI devices have three address spaces: PCI I/O space, PCI storage space, and PCI configuration space. The CPU can access all address spaces on the PCI device, where I/O space and storage space are provided to the device driver, while the configuration s

IP address space of the PCI device There are three address spaces on the PCI device:Pci I/O space, PCI storage space, and PCI configuration space. The CPU can access all the address spaces on the PCI device. The I/O space and storage space are provided to the device driver,

The recent discovery that due to PCI data transmission error caused IO request to get the wrong information, this phenomenon let us think, why the system has been found PCI errors, IO Request can also be the right end? According to the usual thinking, PCI transfer error, IO request should be fail off, but the fact is not the case. Does this problem have anything

Overviewthe kernel's PCI subsystem, or PCI layer, provides a number of common features for different devices to simplify various device drivers. The important structure of the PCI layer is as follows: pci_device_iddevice identification, based on the ID defined by the PCI flag, instead of Linux Local. Pci_deva net_devi

Failure Phenomena: Video card setup options in BIOS [IGD] [PEG/IGD] [PEG/PCI] [pci/peg] [PCI/IGD] How to choose? 　　Solution: Each option has the following meanings: The [IGD] system First initializes the IGD (built-in graphical display). [PEG/IGD] The system first initializes the peg (PCI Express graphics card).

This chapter is a supplement to the previous chapter. It mainly describes how the kernel associates the driver with the device. Common Data Structures of PCI Layer Struct pci_device_id {// device identifier is used to uniquely identify a device Unsigned int vendor, device, Subvendor, subdevice, Class, class_mark; Unsigned long driver_data; }; Strcut pci_dev // PCI device, similar to the net_device structure

How to obtain the pci id of a device in Linux Sometimes, you need to use the pci ID of the device during development. For example, to bind a network card with dpdk, you need to use the pci ID of the network card. The following methods can be used to obtain the pci ID. 1. Use the lspci command. For example . 0 USB contr

Sometimes, the development needs to use the device's PCI ID, such as the use of DPDK to bind a network card, need to use the PCI ID card. Here are some ways to get the PCI ID.1. Use the LSPCI command.Such as02:00.0 USB Controller:intel Corporation 82371ab/eb/mb PIIX4 usb02:01.0 Ethernet Controller:intel Corporation 82545EM Gi Gabit Ethernet Controller (Copper) (r

Failure phenomenon: User indicates that one machine with wireless card, the consultation can remove the wireless card, the solid state drive Solution: To say mSATA and mini pci-e is not a new interface, but most of the previous integration in the system products, rarely contact. And recently with the advent of wireless and solid-state hard drives, causing concern. Mini PCI-E Interface One machine, such

Some people recently asked me about PCI device drivers, and after communicating with them, I suggest they take a look at PCI Device driver basically includes the resource acquisition of PCI, the reading and writing of the configuration space, the processing of interrupts, and the processing of the second half of the interrupt in DPC.At the same time, you must als

See a post on Fpga4fun on PCI-E, simple and easy to understand, suitable for the introduction, specially moved overOriginal address: http://www.fpga4fun.com/PCI-Express.htmlObjective:As PCI Express becomes common place in high-end FPGAs, let's see how easy FPGA Vendors made the technology available.In particular, we look more closely at Xilinx ' s

First, IntroductionThe Linux PCI driver actually consists of two parts: the PCI driver and the device itself, and the PCI driver is usually the Linux kernel, and the device itself is the driver of the developer. There are three address spaces on the PCI device: I/O space, configuration space, memory space, the CPU can

Some people recently asked me about PCI device drivers, and after communicating with them, I recommend that they take a look at PCI Device driver basically includes the resource acquisition of PCI, the reading and writing of the configuration space, the processing of interrupts, and the processing of the second half of the interrupt in DPC.At the same time, must

Generally, on the X86 platform, there are two main methods to access the registers in this range: 1. Configuration mechanism 1 # or configuration Mechanism 2 # Use the in/out command for access. Note that this method is different from the general in/out command to access the pci I/O space. It introduces the address port and data port. Configuration Mechanism 2 # used only on some specific motherboard. The new design should use configuration mechanism

> Http://blog.chinaunix.net/u2/67414/showart_1657718.html To see the actual running effect, we select the 8139too Nic as an example to crop the relevant code from the Linux driver of the NIC.The driver of a PCI device must describe itself to the PCI core in the kernel. At the same time, it must also tell the PCI core which devices can be driven by itself. The fo

1. Pci_driver structurestruct Pci_driver {struct List_head node;const char *name;const struct PCI_DEVICE_ID *id_table; /* Must be non-null-probe to be called */Int (*probe) (struct Pci_dev *dev, const struct pci_device_id *id); /* New Device inserted */void (*remove) (struct Pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */Int (*suspend) (struct Pci_dev *dev, pm_message_t State); /* Device suspended */Int (*suspend_late) (struct Pci_dev *dev, pm_message_t State);Int (*r

Oracle Solaris, pci dss, and solarisdss Today on the Oracle official website to search for pci dss, unintentional search for Oracle Solaris information about pci dss (see the following url: https://docs.oracle.com/cd/E56344_01/html/E53940/makehtml-id-4.html ), The following is an excerpt: Pci dss security policy r

PCI DSS and Cloud Primer The news is always full of major accidents such as customer credit card information leaks. The payment card Industry Data Security Standard (PCI DSS) presents best practices to protect against hacker attacks that are dangerous to steal business data and customer identity information. By using these 12 steps, you can set up a framework that can be used for secure payment environment

There is a problem with the "SM bus controller" and "other PCI bridge devices" Driver in the Device Manager, smpci After WinXP reinstalls the system, there is a yellow question mark in the Device Manager, which is "SM bus controller" and "other PCI bridge devices". The motherboard is Rainbow 7 and the chipset is geForce 7025, nanqiao is nForce 630a, And it is useless to use the motherboard driver of the rai