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Tony Nguyen says: ==================== ice, iavf: Add support for Rx timestamping Mateusz Polchlopek says: Initially, during VF creation it registers the PTP clock in the system and negotiates with PF it's capabilities. In the meantime the PF enables the Flexible Descriptor for VF. Only this type of descriptor allows to receive Rx timestamps. Enabling virtual clock would be possible, though it would probably perform poorly due to the lack of direct time access. Enable timestamping should be done using userspace tools, e.g. hwstamp_ctl -i $VF -r 14 In order to report the timestamps to userspace, the VF extends timestamp to 40b. To support this feature the flexible descriptors and PTP part in iavf driver have been introduced. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: iavf: add support for Rx timestamps to hotpath iavf: handle set and get timestamps ops iavf: Implement checking DD desc field iavf: refactor iavf_clean_rx_irq to support legacy and flex descriptors iavf: define Rx descriptors as qwords libeth: move idpf_rx_csum_decoded and idpf_rx_extracted iavf: periodically cache PHC time iavf: add support for indirect access to PHC time iavf: add initial framework for registering PTP clock iavf: negotiate PTP capabilities iavf: add support for negotiating flexible RXDID format virtchnl: add enumeration for the rxdid format ice: support Rx timestamp on flex descriptor virtchnl: add support for enabling PTP on iAVF ==================== Link: https://patch.msgid.link/20250214192739.1175740-1-anthony.l.nguyen@intel.com 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 reStructuredText 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.