From: Ido Schimmel <idosch@mellanox.com>
To: David Ahern <dsahern@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>,
netdev@vger.kernel.org, davem@davemloft.net, mlxsw@mellanox.com,
roopa@cumulusnetworks.com, nikolay@cumulusnetworks.com,
kafai@fb.com, hannes@stressinduktion.org,
yoshfuji@linux-ipv6.org, edumazet@google.com,
yanhaishuang@cmss.chinamobile.com
Subject: Re: [patch net-next 14/17] mlxsw: spectrum_router: Add support for IPv6 routes addition / deletion
Date: Wed, 19 Jul 2017 19:43:45 +0300 [thread overview]
Message-ID: <20170719164345.GA23668@splinter> (raw)
In-Reply-To: <ca78d11f-bf7d-5fd3-756b-6faedfd86758@gmail.com>
On Wed, Jul 19, 2017 at 10:36:52AM -0600, David Ahern wrote:
> >> 2. How are routes with devices unrelated to ports owned by this driver
> >> handled?
> >
> > They are handled just like any other route, but they don't have a valid
> > RIF (for directly connected routes) or an adjacency group (for
> > gatewayed routes), so the check in mlxsw_sp_fib_entry_should_offload()
> > will return false and they will be programmed to the device with trap
> > action, but using a trap ID (RTR_INGRESS0) with a lower traffic class
> > than IP2ME, so packets that actually need to be locally received by the
> > CPU have a better QoS.
>
> so mlxsw keeps a copy of the complete FIB for IPv4 and IPv6, even routes
> unrelated to its ports?
If we don't reflect all the routes in the system to the ASIC, then we'll
have a broken routing table and a different behavior from what you would
get with plain NICs.
next prev parent reply other threads:[~2017-07-19 16:43 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-19 7:02 [patch net-next 00/17] mlxsw: Support for IPv6 UC router Jiri Pirko
2017-07-19 7:02 ` [patch net-next 01/17] net: core: Make the FIB notification chain generic Jiri Pirko
2017-07-19 14:11 ` David Ahern
2017-07-19 14:35 ` Ido Schimmel
2017-07-19 7:02 ` [patch net-next 02/17] mlxsw: spectrum_router: Ignore address families other than IPv4 Jiri Pirko
2017-07-19 7:02 ` [patch net-next 03/17] rocker: " Jiri Pirko
2017-07-19 7:02 ` [patch net-next 04/17] net: fib_rules: Implement notification logic in core Jiri Pirko
2017-07-19 7:02 ` [patch net-next 05/17] ipv6: fib_rules: Check if rule is a default rule Jiri Pirko
2017-07-19 7:02 ` [patch net-next 06/17] ipv6: fib: Add FIB notifiers callbacks Jiri Pirko
2017-07-19 7:02 ` [patch net-next 07/17] ipv6: fib: Add in-kernel notifications for route add / delete Jiri Pirko
2017-07-19 15:38 ` David Ahern
2017-07-19 15:53 ` Ido Schimmel
2017-07-19 7:02 ` [patch net-next 08/17] ipv6: fib_rules: Dump rules during registration to FIB chain Jiri Pirko
2017-07-19 7:02 ` [patch net-next 09/17] ipv6: fib: Dump tables " Jiri Pirko
2017-07-19 7:02 ` [patch net-next 10/17] ipv6: fib: Add offload indication to routes Jiri Pirko
2017-07-19 15:27 ` David Ahern
2017-07-19 15:49 ` Ido Schimmel
2017-07-19 15:53 ` David Ahern
2017-07-19 16:19 ` Ido Schimmel
2017-07-19 7:02 ` [patch net-next 11/17] ipv6: fib: Allow non-FIB users to take reference on route Jiri Pirko
2017-07-19 15:49 ` David Ahern
2017-07-19 16:17 ` Ido Schimmel
2017-07-19 16:29 ` David Ahern
2017-07-19 7:02 ` [patch net-next 12/17] mlxsw: spectrum_router: Demultiplex FIB event based on family Jiri Pirko
2017-07-19 7:02 ` [patch net-next 13/17] mlxsw: spectrum_router: Sanitize IPv6 FIB rules Jiri Pirko
2017-07-19 7:02 ` [patch net-next 14/17] mlxsw: spectrum_router: Add support for IPv6 routes addition / deletion Jiri Pirko
2017-07-19 16:14 ` David Ahern
2017-07-19 16:30 ` Ido Schimmel
2017-07-19 16:36 ` David Ahern
2017-07-19 16:43 ` Ido Schimmel [this message]
2017-07-19 7:02 ` [patch net-next 15/17] mlxsw: spectrum_router: Add support for route replace Jiri Pirko
2017-07-19 7:02 ` [patch net-next 16/17] mlxsw: spectrum_router: Abort on source-specific routes Jiri Pirko
2017-07-19 16:16 ` David Ahern
2017-07-19 16:36 ` Ido Schimmel
2017-07-19 7:02 ` [patch net-next 17/17] mlxsw: spectrum_router: Don't ignore IPv6 notifications Jiri Pirko
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