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1cf3fe1c37
Emeel Hakim says:
====================
Support MACsec VLAN
This patch series introduces support for hardware (HW) offload MACsec
devices with VLAN configuration. The patches address both scenarios
where the VLAN header is both the inner and outer header for MACsec.
The changes include:
1. Adding MACsec offload operation for VLAN.
2. Considering VLAN when accessing MACsec net device.
3. Currently offloading MACsec when it's configured over VLAN with
current MACsec TX steering rules would wrongly insert the MACsec sec tag
after inserting the VLAN header. This resulted in an ETHERNET | SECTAG |
VLAN packet when ETHERNET | VLAN | SECTAG is configured. The patche
handles this issue when configuring steering rules.
4. Adding MACsec rx_handler change support in case of a marked skb and a
mismatch on the dst MAC address.
Please review these changes and let me know if you have any feedback or
concerns.
Updates since v1:
- Consult vlan_features when adding NETIF_F_HW_MACSEC.
- Allow grep for the functions.
- Add helper function to get the macsec operation to allow the compiler
to make some choice.
Updates since v2:
- Don't use macros to allow direct navigattion from mdo functions to its
implementation.
- Make the vlan_get_macsec_ops argument a const.
- Check if the specific mdo function is available before calling it.
- Enable NETIF_F_HW_MACSEC by default when the lower device has it enabled
and in case the lower device currently has NETIF_F_HW_MACSEC but disabled
let the new vlan device also have it disabled.
Updates since v3:
- Split patch ("vlan: Add MACsec offload operations for VLAN interface")
to prevent mixing generic vlan code changes with driver changes.
- Add mdo_open, stop and stats to support drivers which have those.
- Don't fail if macsec offload operations are available but a specific
function is not, to support drivers which does not implement all
macsec offload operations.
- Don't call find_rx_sc twice in the same loop, instead save the result
in a parameter and re-use it.
- Completely remove _BUILD_VLAN_MACSEC_MDO macro, to prevent returning
from a macro.
- Reorder the functions inside struct macsec_ops to match the struct
decleration.
Updates since v4:
- Change subject line of ("macsec: Add MACsec rx_handler change support") and adapt commit message.
- Don't separate the new check in patch ("macsec: Add MACsec rx_handler change support")
from the previous if/else if.
- Drop"_found" from the parameter naming "rx_sc_found" and move the definition to
the relevant block.
- Remove "{}" since not needed around a single line.
Updates since v5:
- Consider promiscuous mode case.
Updates since v6:
- Use IS_ENABLED instead of checking for ifdef.
- Don't add inline keywork in c files, let the compiler make its own decisions.
====================
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.