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Russell King says: ==================== Add and use helper for PCS negotiation modes Earlier this month, I proposed a helper for deciding whether a PCS should use inband negotiation modes or not. There was some discussion around this topic, and I believe there was no disagreement about providing the helper. The initial discussion can be found at: https://lore.kernel.org/r/ZGIkGmyL8yL1q1zp@shell.armlinux.org.uk Subsequently, I posted a RFC series back in May: https://lore.kernel.org/r/ZGzhvePzPjJ0v2En@shell.armlinux.org.uk that added a helper, phylink_pcs_neg_mode() which PCS drivers could use to parse the state, and updated a bunch of drivers to use it. I got a couple of bits of feedback to it, including some ACKs. However, I've decided to take this slightly further and change the "mode" parameter to both the pcs_config() and pcs_link_up() methods when a PCS driver opts in to this (by setting "neg_mode" in the phylink_pcs structure.) If this is not set, we default to the old behaviour. That said, this series converts all the PCS implementations I can find currently in net-next. Doing this has the added benefit that the negotiation mode parameter is also available to the pcs_link_up() function, which can now know whether inband negotiation was in fact enabled or not at pcs_config() time. It has been posted as RFC at: https://lore.kernel.org/r/ZIh/CLQ3z89g0Ua0@shell.armlinux.org.uk and received one reply, thanks Elad, which is a similar amount of interest to previous postings. Let's post it as non-RFC and see whether we get more reaction. ==================== Link: https://lore.kernel.org/r/ZIxQIBfO9dH5xFlg@shell.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.