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a5b52692e6
Currently, mlxsw has several shortcomings with regards to RIF handling due to PVID changes: - In order to cause RIF for a bridge device to be created, the user is expected first to set PVID, then to add an IP address. The reverse ordering is disallowed, which is not very user-friendly. - When such bridge gets a VLAN upper whose VID was the same as the existing PVID, and this VLAN netdevice gets an IP address, a RIF is created for this netdevice. The new RIF is then assigned to the 802.1Q FID for the given VID. This results in a working configuration. However, then, when the VLAN netdevice is removed again, the RIF for the bridge itself is never reassociated to the VLAN. - PVID cannot be changed once the bridge has uppers. Presumably this is because the driver does not manage RIFs properly in face of PVID changes. However, as the previous point shows, it is still possible to get into invalid configurations. In this patch, add the logic necessary for creation of a RIF as a result of PVID change. Moreover, when a VLAN upper is created whose VID matches lower PVID, do not create RIF for this netdevice. These changes obviate the need for ordering of IP address additions and PVID configuration, so stop forbidding addition of an IP address to a PVID-less bridge. Instead, bail out quietly. Also stop preventing PVID changes when the bridge has uppers. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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 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.