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path: root/drivers/net/netdevsim/udp_tunnels.c
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2025-06-18netdevsim: remove udp_ports_sleepStanislav Fomichev
Now that there is only one path in udp_tunnel, there is no need to have udp_ports_sleep knob. Remove it and adjust the test. Cc: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com> Link: https://patch.msgid.link/20250616162117.287806-6-stfomichev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18udp_tunnel: remove rtnl_lock dependencyStanislav Fomichev
Drivers that are using ops lock and don't depend on RTNL lock still need to manage it because udp_tunnel's RTNL dependency. Introduce new udp_tunnel_nic_lock and use it instead of rtnl_lock. Drop non-UDP_TUNNEL_NIC_INFO_MAY_SLEEP mode from udp_tunnel infra (udp_tunnel_nic_device_sync_work needs to grab udp_tunnel_nic_lock mutex and might sleep). Cover more places in v4: - netlink - udp_tunnel_notify_add_rx_port (ndo_open) - triggers udp_tunnel_nic_device_sync_work - udp_tunnel_notify_del_rx_port (ndo_stop) - triggers udp_tunnel_nic_device_sync_work - udp_tunnel_get_rx_info (__netdev_update_features) - triggers NETDEV_UDP_TUNNEL_PUSH_INFO - udp_tunnel_drop_rx_info (__netdev_update_features) - triggers NETDEV_UDP_TUNNEL_DROP_INFO - udp_tunnel_nic_reset_ntf (ndo_open) - notifiers - udp_tunnel_nic_netdevice_event, depending on the event: - triggers NETDEV_UDP_TUNNEL_PUSH_INFO - triggers NETDEV_UDP_TUNNEL_DROP_INFO - ethnl_tunnel_info_reply_size - udp_tunnel_nic_set_port_priv (two intel drivers) Cc: Michael Chan <michael.chan@broadcom.com> Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com> Link: https://patch.msgid.link/20250616162117.287806-4-stfomichev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-27net: netdevsim: try to close UDP port harness racesJakub Kicinski
syzbot discovered that we remove the debugfs files after we free the netdev. Try to clean up the relevant dir while the device is still around. Reported-by: syzbot+2e5de9e3ab986b71d2bf@syzkaller.appspotmail.com Fixes: 424be63ad831 ("netdevsim: add UDP tunnel port offload support") Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/20250122224503.762705-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17netdevsim: set .owner to THIS_MODULETaehee Yoo
If THIS_MODULE is not set, the module would be removed while debugfs is being used. It eventually makes kernel panic. Fixes: 82c93a87bf8b ("netdevsim: implement couple of testing devlink health reporters") Fixes: 424be63ad831 ("netdevsim: add UDP tunnel port offload support") Fixes: 4418f862d675 ("netdevsim: implement support for devlink region and snapshots") Fixes: d3cbb907ae57 ("netdevsim: add ACL trap reporting cookie as a metadata") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Link: https://lore.kernel.org/r/20201115103041.30701-1-ap420073@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-28netdevsim: support the static IANA VXLAN port flagJakub Kicinski
Allow setting UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-28netdevsim: shared UDP tunnel port table supportJakub Kicinski
Add the ability to simulate a device with a shared UDP tunnel port table. Try to reject the configurations and actions which are not supported by the core, so we don't get syzcaller etc. warning reports. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-28netdevsim: add warnings on unexpected UDP tunnel port errorsJakub Kicinski
We should never see a removal of a port which is not in the table or adding a port to an occupied entry in the table. To make sure such errors don't escape the checks in the test script add a warning/kernel spat. Error injection will not trigger those, nor should it ever put us in a bad state. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10netdevsim: add UDP tunnel port offload supportJakub Kicinski
Add UDP tunnel port handlers to our fake driver so we can test the core infra. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>