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Jiri Pirko says: ==================== mlxsw: Add support for non-equal-cost multi-path Ido says: In the device, nexthops are stored as adjacency entries in an array called the KVD linear (KVDL). When a multi-path route is hit the packet's headers are hashed and then converted to an index into KVDL based on the adjacency group's size and base index. Up until now the driver ignored the `weight` parameter for multi-path routes and allocated only one adjacency entry for each nexthop with a limit of 32 nexthops in a group. This set makes the driver take the `weight` parameter into account when allocating adjacency entries. First patch teaches dpipe to show the size of the adjacency group, so that users will be able to determine the actual weight of each nexthop. The second patch refactors the KVDL allocator, making it more receptive towards the addition of another partition later in the set. Patches 3-5 introduce small changes towards the actual change in the sixth patch that populates the adjacency entries according to their relative weight. Last two patches finally add another partition to the KVDL, which allows us to allocate more than 32 entries per-group and thus support more nexthops and also provide higher accuracy with regards to the requested weights. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.