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47b6f50077
There seems to be a problem in the x540's internal switch wherein if SR-IOV mode is enabled and an offloaded IPsec packet is sent to a local VF, the packet is silently dropped. This might never be a problem as it is somewhat a corner case, but if someone happens to be using IPsec offload from the PF to a VF that just happens to get migrated to the local box, communication will mysteriously fail. Not good. A simple way to protect from this is to simply not allow any IPsec offloads for outgoing packets when num_vfs != 0. This doesn't help any offloads that were created before SR-IOV was enabled, but we'll get to that later. Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.