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6c5dbda0d4
RED qdisc will replace its child Qdisc with a new FIFO queue if it is reconfigured and the limit parameter is not 0. This means that when it's created with limit of 0 it will have no FIFO, and all packets will be dropped. If it's changed and limit is specified it will loose its existing child (implicit graft). Make sure we mark RED Qdisc child as NFP_QDISC_UNTRACKED if its not the expected FIFO. nfp_abm_qdisc_replace() will return 1 if Qdisc already existed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.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.