kernel/linux.git/include/net/bond_options.h, branch v6.9.12

bonding: Add independent control state machine

2024-02-06T12:17:54+00:00

Add support for the independent control state machine per IEEE 802.1AX-2008 5.4.15 in addition to the existing implementation of the coupled control state machine. Introduces two new states, AD_MUX_COLLECTING and AD_MUX_DISTRIBUTING in the LACP MUX state machine for separated handling of an initial Collecting state before the Collecting and Distributing state. This enables a port to be in a state where it can receive incoming packets while not still distributing. This is useful for reducing packet loss when a port begins distributing before its partner is able to collect. Added new functions such as bond_set_slave_tx_disabled_flags and bond_set_slave_rx_enabled_flags to precisely manage the port's collecting and distributing states. Previously, there was no dedicated method to disable TX while keeping RX enabled, which this patch addresses. Note that the regular flow process in the kernel's bonding driver remains unaffected by this patch. The extension requires explicit opt-in by the user (in order to ensure no disruptions for existing setups) via netlink support using the new bonding parameter coupled_control. The default value for coupled_control is set to 1 so as to preserve existing behaviour. Signed-off-by: Aahil Awatramani Reviewed-by: Hangbin Liu Link: https://lore.kernel.org/r/20240202175858.1573852-1-aahila@google.com Signed-off-by: Paolo Abeni

net: add missing includes and forward declarations under net/

2022-07-22T11:53:22+00:00

This patch adds missing includes to headers under include/net. All these problems are currently masked by the existing users including the missing dependency before the broken header. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

Bonding: add per-port priority for failover re-selection

2022-06-24T10:27:59+00:00

Add per port priority support for bonding active slave re-selection during failover. A higher number means higher priority in selection. The primary slave still has the highest priority. This option also follows the primary_reselect rules. This option could only be configured via netlink. Signed-off-by: Hangbin Liu Acked-by: Jonathan Toppins Signed-off-by: David S. Miller

bonding: add slave_dev field for bond_opt_value

2022-06-24T10:27:59+00:00

Currently, bond_opt_value are mostly used for bonding option settings. If we want to set a value for slave, we need to re-alloc a string to store both slave name and vlaue, like bond_option_queue_id_set() does, which is complex and dumb. As Jon suggested, let's add a union field slave_dev for bond_opt_value, which will be benefit for future slave option setting. In function __bond_opt_init(), we will always check the extra field and set it if it's not NULL. Suggested-by: Jonathan Toppins Signed-off-by: Hangbin Liu Acked-by: Jonathan Toppins Signed-off-by: David S. Miller

bonding: netlink error message support for options

2022-06-10T06:02:54+00:00

Add support for reporting errors via extack in both bond_newlink and bond_changelink. Instead of having to look in the kernel log for why an option was not correct just report the error to the user via the extack variable. What is currently reported today: ip link add bond0 type bond ip link set bond0 up ip link set bond0 type bond mode 4 RTNETLINK answers: Device or resource busy After this change: ip link add bond0 type bond ip link set bond0 up ip link set bond0 type bond mode 4 Error: unable to set option because the bond is up. Signed-off-by: Jonathan Toppins Acked-by: Jay Vosburgh Signed-off-by: Jakub Kicinski

bonding: add new option ns_ip6_target

2022-02-21T12:13:45+00:00

This patch add a new bonding option ns_ip6_target, which correspond to the arp_ip_target. With this we set IPv6 targets and send IPv6 NS request to determine the health of the link. For other related options like the validation, we still use arp_validate, and will change to ns_validate later. Note: the sysfs configuration support was removed based on https://lore.kernel.org/netdev/8863.1645071997@famine Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

bonding: add extra field for bond_opt_value

2022-02-21T12:13:45+00:00

Adding an extra storage field for bond_opt_value so we can set large bytes of data for bonding options in future, e.g. IPv6 address. Define a new call bond_opt_initextra(). Also change the checking order of __bond_opt_init() and check values first. Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

Bonding: add arp_missed_max option

2021-11-30T12:15:58+00:00

Currently, we use hard code number to verify if we are in the arp_interval timeslice. But some user may want to reduce/extend the verify timeslice. With the similar team option 'missed_max' the uers could change that number based on their own environment. Acked-by: Jay Vosburgh Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

bonding: add new option lacp_active

2021-08-03T10:50:22+00:00

Add an option lacp_active, which is similar with team's runner.active. This option specifies whether to send LACPDU frames periodically. If set on, the LACPDU frames are sent along with the configured lacp_rate setting. If set off, the LACPDU frames acts as "speak when spoken to". Note, the LACPDU state frames still will be sent when init or unbind port. v2: remove module parameter Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

bonding: add an option to specify a delay between peer notifications

2019-07-04T19:30:48+00:00

Currently, gratuitous ARP/ND packets are sent every `miimon' milliseconds. This commit allows a user to specify a custom delay through a new option, `peer_notif_delay'. Like for `updelay' and `downdelay', this delay should be a multiple of `miimon' to avoid managing an additional work queue. The configuration logic is copied from `updelay' and `downdelay'. However, the default value cannot be set using a module parameter: Netlink or sysfs should be used to configure this feature. When setting `miimon' to 100 and `peer_notif_delay' to 500, we can observe the 500 ms delay is respected: 20:30:19.354693 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:19.874892 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.394919 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 20:30:20.914963 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28 In bond_mii_monitor(), I have tried to keep the lock logic readable. The change is due to the fact we cannot rely on a notification to lower the value of `bond->send_peer_notif' as `NETDEV_NOTIFY_PEERS' is only triggered once every N times, while we need to decrement the counter each time. iproute2 also needs to be updated to be able to specify this new attribute through `ip link'. Signed-off-by: Vincent Bernat Signed-off-by: David S. Miller