mainlining shenanigans
97bfe0e05c
Jiri Pirko says: ==================== devlink: allow devlink instances to change network namespace Devlink from the beginning counts with network namespaces, but the instances has been fixed to init_net. Implement change of network namespace as part of "devlink reload" procedure like this: $ ip netns add testns1 $ devlink/devlink dev reload netdevsim/netdevsim10 netns testns1 This command reloads device "netdevsim10" into network namespace "testns1". Note that "devlink reload" reinstantiates driver objects, effectively it reloads the driver instance, including possible hw reset etc. Newly created netdevices respect the network namespace of the parent devlink instance and according to that, they are created in target network namespace. Driver is able to refuse to be reloaded into different namespace. That is the case of mlx4 right now. FIB entries and rules are replayed during FIB notifier registration which is triggered during reload (driver instance init). FIB notifier is also registered to the target network namespace, that allows user to use netdevsim devlink resources to setup per-namespace limits of FIB entries and FIB rules. In fact, with multiple netdevsim instances in each network namespace, user might setup different limits. This maintains and extends current netdevsim resources behaviour. Patch 1 prepares netdevsim code for the follow-up changes in the patchset. It does not change the behaviour, only moves pet-init_netns accounting to netdevsim instance, which is also in init_netns. Patches 2-5 prepare the FIB notifier making it per-netns and to behave correctly upon error conditions. Patch 6 just exports a devlink_net helper so it can be used in drivers. Patches 7-9 do preparations in mlxsw driver. Patches 10-13 do preparations in netdevsim driver, namely patch 12 implements proper devlink reload where the driver instance objects are actually re-created as they should be. Patch 14 actually implements the possibility to reload into a different network namespace. Patch 15 adds needed selftests for devlink reload into namespace for netdevsim driver. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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| Documentation | ||
| drivers | ||
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| include | ||
| init | ||
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| kernel | ||
| lib | ||
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| net | ||
| samples | ||
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| .clang-format | ||
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| .get_maintainer.ignore | ||
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| README | ||
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.