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From: Petr Machata <petrm@nvidia.com>
To: "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	<netdev@vger.kernel.org>
Cc: Petr Machata <petrm@nvidia.com>, Ido Schimmel <idosch@nvidia.com>,
	Danielle Ratson <danieller@nvidia.com>,
	Amit Cohen <amcohen@nvidia.com>, Shuah Khan <shuah@kernel.org>,
	<linux-kselftest@vger.kernel.org>, <mlxsw@nvidia.com>
Subject: [PATCH net-next 14/16] selftests: mlxsw: spectrum: q_in_vni_veto: Disable IPv6 autogen on a bridge
Date: Tue, 20 Jun 2023 15:56:00 +0200	[thread overview]
Message-ID: <fe6bb1b8da9dfc275e63cd1516bb69344ee690ff.1687265905.git.petrm@nvidia.com> (raw)
In-Reply-To: <cover.1687265905.git.petrm@nvidia.com>

In a future patch, mlxsw will start adding RIFs to uppers of front panel
port netdevices, if they have an IP address.

At the time that the front panel port is enslaved to the bridge, the bridge
MAC address does not have the same prefix as other interfaces in the
system. On Nvidia Spectrum-1 machines all the RIFs have to have the same
38-bit MAC address prefix. Since the bridge does not obey this limitation,
the RIF cannot be created, and the enslavement attempt is vetoed on the
grounds of the configuration not being offloadable.

The selftest itself however checks vetoing of a different aspect of the
configuration and the bridge does not need to participate in routing
traffic. The IP address or the RIF are irrelevant.

Fix by disabling automatic IPv6 address generation for the HW-offloaded
bridge in this selftest, thus exempting it from mlxsw router attention.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
---
 .../selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh        | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh
index f0443b1b05b9..60753d46a2d4 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh
@@ -34,6 +34,7 @@ create_vxlan_on_top_of_8021ad_bridge()
 
 	ip link add dev br0 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
 		vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
 	ip link set dev br0 up
 
 	ip link add name vx100 type vxlan id 1000 local 192.0.2.17 dstport \
-- 
2.40.1


  parent reply	other threads:[~2023-06-20 13:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-20 13:55 [PATCH net-next 00/16] selftests: Preparations for out-of-order-operations patches in mlxsw Petr Machata
2023-06-20 13:55 ` [PATCH net-next 01/16] selftests: forwarding: q_in_vni: Disable IPv6 autogen on bridges Petr Machata
2023-06-20 13:55 ` [PATCH net-next 02/16] selftests: forwarding: dual_vxlan_bridge: " Petr Machata
2023-06-20 13:55 ` [PATCH net-next 03/16] selftests: forwarding: skbedit_priority: Disable IPv6 autogen on a bridge Petr Machata
2023-06-20 13:55 ` [PATCH net-next 04/16] selftests: forwarding: pedit_dsfield: " Petr Machata
2023-06-20 13:55 ` [PATCH net-next 05/16] selftests: forwarding: mirror_gre_*: Disable IPv6 autogen on bridges Petr Machata
2023-06-20 13:55 ` [PATCH net-next 06/16] selftests: forwarding: mirror_gre_*: Use port MAC for bridge address Petr Machata
2023-06-20 13:55 ` [PATCH net-next 07/16] selftests: forwarding: router_bridge: " Petr Machata
2023-06-20 13:55 ` [PATCH net-next 08/16] selftests: mlxsw: q_in_q_veto: Disable IPv6 autogen on bridges Petr Machata
2023-06-20 13:55 ` [PATCH net-next 09/16] selftests: mlxsw: extack: " Petr Machata
2023-06-20 13:55 ` [PATCH net-next 10/16] selftests: mlxsw: mirror_gre_scale: Disable IPv6 autogen on a bridge Petr Machata
2023-06-20 13:55 ` [PATCH net-next 11/16] selftests: mlxsw: qos_dscp_bridge: " Petr Machata
2023-06-20 13:55 ` [PATCH net-next 12/16] selftests: mlxsw: qos_ets_strict: Disable IPv6 autogen on bridges Petr Machata
2023-06-20 13:55 ` [PATCH net-next 13/16] selftests: mlxsw: qos_mc_aware: " Petr Machata
2023-06-20 13:56 ` Petr Machata [this message]
2023-06-20 13:56 ` [PATCH net-next 15/16] selftests: mlxsw: vxlan: " Petr Machata
2023-06-20 13:56 ` [PATCH net-next 16/16] selftests: mlxsw: one_armed_router: Use port MAC for bridge address Petr Machata
2023-06-21 21:10 ` [PATCH net-next 00/16] selftests: Preparations for out-of-order-operations patches in mlxsw patchwork-bot+netdevbpf

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