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https://www.kernel.org/doc/html/v4.12/driver-api/pci.html
int pci_bus_find_capability (struct pci_bus * bus, unsigned int devfn, int cap) ¶. query for devices’ capabilities. Parameters. struct pci_bus * bus the PCI bus to query unsigned int devfn PCI device to query int cap capability code. Description. Like pci_find_capability() but works for pci devices that do not have a pci_dev structure set up yet.. Returns the address of the requested ...
https://www.kernel.org/doc/html/latest/PCI/pcieaer-howto.html
7.2.1. Include the PCI Express AER Root Driver into the Linux Kernel¶ The PCI Express AER Root driver is a Root Port service driver attached to the PCI Express Port Bus driver. If a user wants to use it, the driver has to be compiled. Option CONFIG_PCIEAER supports this capability.
https://community.nxp.com/thread/328207
Aug 14, 2014 · Does Linux kernel 3.0.4 support use of PCIe AER driver with P2020 or any powerpc based architecture? Question asked by R Johnson on Jul 30, 2014 Latest reply on Aug 14, 2014 by Yiping Wang. Like • Show 0 Likes 0; Comment • 18; I am having trouble getting the Linux kernel PCIe AER driver working with a P2020 based system.Reviews: 18
https://wireless.wiki.kernel.org/en/users/Documentation/ASPM
Of course, BIOSes are buggy though – so the Linux kernel does have the capability to oversee and review the capabilities by itself and overrule the BIOS. ASPM support in the Linux kernel is also used to expose ASPM capabilities for PCIE devices to userspace (need confirmation, I see this being done in the code, but makes no sense).
https://wiki.archlinux.org/index.php/Solid_State_Drive/NVMe
Samsung drive errors on Linux 4.10. On Linux 4.10, drive errors can occur and causing system instability. This seems to be the result of a power saving state that the drive cannot use. Adding the kernel parameter nvme_core.default_ps_max_latency_us=5500 disables the lowest power saving state, preventing write errors. References
http://haifux.org/lectures/256/haifux-pcie.pdf
The anatomy of a PCI/PCI Express kernel driver Eli Billauer May 16th, 2011 / June 13th, 2011 This work is released under Creative Common’s CC0 license version 1.0 or later. To the extent possible under law, the author has waived all copyright and related or neighboring rights to this work. Eli Billauer The anatomy of a PCI/PCI Express kernel ...
https://patchwork.kernel.org/project/linux-pci/list/
Toggle navigation Patchwork Linux PCI development list Patches Bundles About this project Login; Register; Mail settings; Show patches ... Add support for PCIe controller to work in endpoint mode on R-Car SoCs - - - 0 0 0: 2020-01-08: ... linux/kernel.h: Add PTR_ALIGN_DOWN macro Add PCIe support to TI's J721E SoC - - -
https://how-to.fandom.com/wiki/How_to_configure_the_Linux_kernel/drivers/pci/pcie
Howto configure the Linux kernel / drivers / pci / pcie PCI Express Port Bus Configuration Option: PCIEPORTBUS Kernel Versions: 2.6.15.6 ... (on/off) PCI Express support depends on PCI This automatically enables PCI Express Port Bus support. Users …
http://lkml.iu.edu/hypermail/linux/kernel/0801.3/1068.html
PCI Express ASPM defines a protocol for PCI Express components in the D0 state to reduce Link power by placing their Links into a low power state and instructing the other end of the Link to do likewise.
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