[dpdk-dev] [PATCH v3 1/2] Add RIB library

[Bruce Richardson]

On Thu, Feb 22, 2018 at 10:50:55PM +0000, Medvedkin Vladimir wrote:
> RIB is an alternative to current LPM library.
> It solves the following problems
>  - Increases the speed of control plane operations against lpm such as
>    adding/deleting routes
>  - Adds abstraction from dataplane algorithms, so it is possible to add
>    different ip route lookup algorythms such as DXR/poptrie/lpc-trie/etc
>    in addition to current dir24_8
>  - It is possible to keep user defined application specific additional
>    information in struct rte_rib_node which represents route entry.
>    It can be next hop/set of next hops (i.e. active and feasible),
>    pointers to link rte_rib_node based on some criteria (i.e. next_hop),
>    plenty of additional control plane information.
>  - For dir24_8 implementation it is possible to remove
>    rte_lpm_tbl_entry.depth field that helps to save 6 bits.
>  - Also new dir24_8 implementation supports different next_hop sizes
>    (1/2/4/8 bytes per next hop)
>  - Removed RTE_LPM_LOOKUP_SUCCESS to save 1 bit and to eleminate
>    ternary operator.
>    Instead it returns special default value if there is no route.
> 
> Signed-off-by: Medvedkin Vladimir <medvedkinv at gmail.com>
> ---
>  config/common_base                 |   6 +
>  doc/api/doxy-api.conf              |   1 +
>  lib/Makefile                       |   2 +
>  lib/librte_rib/Makefile            |  23 ++
>  lib/librte_rib/rte_dir24_8.c       | 482 +++++++++++++++++++++++++++++++++
>  lib/librte_rib/rte_dir24_8.h       | 115 ++++++++
>  lib/librte_rib/rte_rib.c           | 526 +++++++++++++++++++++++++++++++++++++
>  lib/librte_rib/rte_rib.h           | 322 +++++++++++++++++++++++
>  lib/librte_rib/rte_rib_version.map |  18 ++
>  mk/rte.app.mk                      |   1 +
>  10 files changed, 1496 insertions(+)
>  create mode 100644 lib/librte_rib/Makefile
>  create mode 100644 lib/librte_rib/rte_dir24_8.c
>  create mode 100644 lib/librte_rib/rte_dir24_8.h
>  create mode 100644 lib/librte_rib/rte_rib.c
>  create mode 100644 lib/librte_rib/rte_rib.h
>  create mode 100644 lib/librte_rib/rte_rib_version.map
> 
Sorry, I didn't see there was a V3, so made comments to V2. Hopefully the
comments all still apply.
For future versions, please include a diff log below the cut-line so that
we can see what changes between each version.

Thanks,
/Bruce