Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
Ben Widawsky
authored
The original driver implementation used the doorbell timeout for the Mailbox Interface Ready bit to piggy back off of, since the latter does not have a defined timeout. This functionality, introduced in commit 8adaf747 ("cxl/mem: Find device capabilities"), needs improvement as the recent "Add Mailbox Ready Time" ECN timeout indicates that the mailbox ready time can be significantly longer that 2 seconds. While the specification limits the maximum timeout to 256s, the cxl_pci driver gives up on the mailbox after 60s. This value corresponds with important timeout values already present in the kernel. A module parameter is provided as an emergency override and represents the default Linux policy for all devices. Signed-off-by:Ben Widawsky <ben.widawsky@intel.com> Reviewed-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> [djbw: add modparam, drop check_device_status()] Co-developed-by:
Dan Williams <dan.j.williams@intel.com> Link: https://lore.kernel.org/r/164367306565.208548.1932299464604450843.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by:
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| drivers | ||
| fs | ||
| include | ||
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| samples | ||
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| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README |