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d1569537a8
After IPsec policy/state TX rules are added, any TC flow rule, which forwards packets to uplink, is modified to forward to IPsec TX tables. As these tables are destroyed dynamically, whenever there is no reference to them, the destinations of this kind of rules must be restored to uplink. There is a special case for packet encapsulation, as the packet_reformat_id in the extended destination is used to reformat packets, but only for the VPORT destination. To forward packet to IPsec table and do encapsulation in one FTE, move the packet_reformat_id to flow context, instead of using the extended destination. As a limitation, multiple encapsulations with table forwarding, and one together with other VPORT destinations, are not allowed, so add a check when offloading TC rules. TC rules are not allowed before IPsec TX rule is added, so only need to restore TC rules after flush IPSec TX rules. As they are saved in the vport_rep rhashtables, we walk all the rules in the rhashtables, and find TC rules with destinations pointing to IPsec tables, and modify them one by one. To avoid concurrent issue, this handling is done under the protection of eswitch mode_lock. Signed-off-by: Jianbo Liu <jianbol@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/7bcb2c7e2ecf0e0d06b095c8dcc6a37ea7f02faf.1690802064.git.leon@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.