forked from Minki/linux
mainlining shenanigans
aea3dee86c
Richard Cochran says: ==================== Peer to Peer One-Step time stamping This series adds support for PTP (IEEE 1588) P2P one-step time stamping along with a driver for a hardware device that supports this. If the hardware supports p2p one-step, it subtracts the ingress time stamp value from the Pdelay_Request correction field. The user space software stack then simply copies the correction field into the Pdelay_Response, and on transmission the hardware adds the egress time stamp into the correction field. This new functionality extends CONFIG_NETWORK_PHY_TIMESTAMPING to cover MII snooping devices, but it still depends on phylib, just as that option does. Expanding beyond phylib is not within the scope of the this series. User space support is available in the current linuxptp master branch. - Patch 1 adds phy_device methods for existing time stamping fields. - Patches 2-5 convert the stack and drivers to the new methods. - Patch 6 moves code around the dp83640 driver. - Patches 7-10 add support for MII time stamping in non-PHY devices. - Patch 11 adds the new P2P 1-step option. - Patch 12 adds a driver implementing the new option. Thanks, Richard Changed in v9: ~~~~~~~~~~~~~~ - Fix two more drivers' switch/case blocks WRT the new HWTSTAMP ioctl. - Picked up two more review tags from Andrew. Changed in v8: ~~~~~~~~~~~~~~ - Avoided adding forward functional declarations in the dp83640 driver. - Picked up Florian's new review tags and another one from Andrew. Changed in v7: ~~~~~~~~~~~~~~ - Converted pr_debug|err to dev_ variants in new driver. - Fixed device tree documentation per Rob's v6 review. - Picked up Andrew's and Rob's review tags. - Silenced sparse warnings in new driver. Changed in v6: ~~~~~~~~~~~~~~ - Added methods for accessing the phy_device time stamping fields. - Adjust the device tree documentation per Rob's v5 review. - Fixed the build failures due to missing exports. Changed in v5: ~~~~~~~~~~~~~~ - Fixed build failure in macvlan. - Fixed latent bug with its gcc warning in the driver. Changed in v4: ~~~~~~~~~~~~~~ - Correct error paths and PTR_ERR return values in the framework. - Expanded KernelDoc comments WRT PHY locking. - Pick up Andrew's review tag. Changed in v3: ~~~~~~~~~~~~~~ - Simplify the device tree binding and document the time stamping phandle by itself. Changed in v2: ~~~~~~~~~~~~~~ - Per the v1 review, changed the modeling of MII time stamping devices. They are no longer a kind of mdio device. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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| README | ||
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.