bc6107771b
Allocate a netdev and figure out basics like how many queues we need, MAC address, MTU bounds. Kick off a service task to do various periodic things like health checking. The service task only runs when device is open. We have four levels of objects here: - ring - A HW ring with head / tail pointers, - triad - Two submission and one completion ring, - NAPI - NAPI, with one IRQ and any number of Rx and Tx triads, - Netdev - The ultimate container of the rings and napi vectors. The "triad" is the only less-than-usual construct. On Rx we have two "free buffer" submission rings, one for packet headers and one for packet data. On Tx we have separate rings for XDP Tx and normal Tx. So we ended up with ring triplets in both directions. We keep NAPIs on a local list, even though core already maintains a list. Later on having a separate list will matter for live reconfig. We introduce the list already, the churn would not be worth it. Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Link: https://patch.msgid.link/172079938358.1778861.11681469974633489463.stgit@ahduyck-xeon-server.home.arpa Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.