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eb550f5309
Currently, there is no way for a VF driver to specify that it wants to change its device/primary unicast MAC address. This makes it difficult/impossible for the PF driver to track the VF's device/primary unicast MAC address, which is used for VM/VF reboot and displaying on the host. Fix this by using 2 bits of a pad byte in the virtchnl_ether_addr structure so the VF can specify what type of MAC it's adding/deleting. Below are the values that should be used by all VF drivers going forward. VIRTCHNL_ETHER_ADDR_LEGACY(0): - The type should only ever be 0 for legacy AVF drivers (i.e. drivers that don't support the new type bits). The PF drivers will track VF's device/primary unicast MAC, but this will only be a best effort. VIRTCHNL_ETHER_ADDR_PRIMARY(1): - This type should only be used when the VF is changing their device/primary unicast MAC. It should be used for both delete and add cases related to the device/primary unicast MAC. VIRTCHNL_ETHER_ADDR_EXTRA(2): - This type should be used when the VF is adding and/or deleting MAC addresses that are not the device/primary unicast MAC. For example, extra unicast addresses and multicast addresses assuming the PF supports "extra" addresses at all. If a PF is parsing the type field of the virtchnl_ether_addr, then it should use the VIRTCHNL_ETHER_ADDR_TYPE_MASK to mask the first two bits of the type field since 0, 1, and 2 are the only valid values. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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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.