mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-10 21:07:02 +09:00
5d23e41597
On Spectrum-1, timestamped PTP packets and the corresponding timestamps need to be kept in caches until both are available, at which point they are matched up and packets forwarded as appropriate. However, not all packets will ever see their timestamp, and not all timestamps will ever see their packet. It is therefore necessary to dispose of such abandoned entries. To that end, introduce a garbage collector to collect entries that have not had their counterpart turn up within about a second. The GC maintains a monotonously-increasing value of GC cycle. Every entry that is put to the hash table is annotated with the GC cycle at which it should be collected. When the GC runs, it walks the hash table, and collects the objects according to their GC cycle annotation. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.