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teamd: lacp: update port state according to partner's sync bit (#2793)

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Backport of
54f137c105

According to 6.4.15 of IEEE 802.1AX-2014, Figure 6-22, the state that the
port is selected moves MUX state from DETACHED to ATTACHED.

But ATTACHED state does not mean that the port can send and receive user
frames. COLLECTING_DISTRIBUTION state is the state that the port can send
and receive user frames. To move MUX state from ATTACHED to
COLLECTING_DISTRIBUTION, the partner state should be sync as well as the
port selected.

In function lacp_port_actor_update(), only INFO_STATE_SYNCHRONIZATION
should be set to the actor.state when the port is selected.
INFO_STATE_COLLECTING and INFO_STATE_DISTRIBUTING should be set to false
with ATTACHED mode and set to true when INFO_STATE_SYNCHRONIZATION of
partner.state is set.

In function lacp_port_should_be_{enabled, disabled}(), we also need to
check the INFO_STATE_SYNCHRONIZATION bit of partner.state.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
This commit is contained in:
pavel-shirshov 2019-04-16 19:11:24 -07:00 committed by Ying Xie
parent 08fed3c125
commit f082cff528
2 changed files with 72 additions and 0 deletions
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71
src/libteam/0010-teamd-lacp-update-port-state-according-to-partners-sy.patch Normal file
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@ -0,0 +1,71 @@
commit 15b56de0f309c942f0f3a588f40944d078db97f9
Author: Pavel Shirshov <pavelsh@microsoft.com>
Date: Tue Apr 16 12:18:12 2019 -0700
teamd: lacp: update port state according to partner's sync bit
Backport of
https://github.com/jpirko/libteam/commit/54f137c10579bf97800c61ebb13e732aa1d843e6#diff-f17610bfcc2bafe661a9f3ba496ebf12
According to 6.4.15 of IEEE 802.1AX-2014, Figure 6-22, the state that the
port is selected moves MUX state from DETACHED to ATTACHED.
But ATTACHED state does not mean that the port can send and receive user
frames. COLLECTING_DISTRIBUTION state is the state that the port can send
and receive user frames. To move MUX state from ATTACHED to
COLLECTING_DISTRIBUTION, the partner state should be sync as well as the
port selected.
In function lacp_port_actor_update(), only INFO_STATE_SYNCHRONIZATION
should be set to the actor.state when the port is selected.
INFO_STATE_COLLECTING and INFO_STATE_DISTRIBUTING should be set to false
with ATTACHED mode and set to true when INFO_STATE_SYNCHRONIZATION of
partner.state is set.
In function lacp_port_should_be_{enabled, disabled}(), we also need to
check the INFO_STATE_SYNCHRONIZATION bit of partner.state.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
diff --git a/teamd/teamd_runner_lacp.c b/teamd/teamd_runner_lacp.c
index dae9086..5fa026a 100644
--- a/teamd/teamd_runner_lacp.c
+++ b/teamd/teamd_runner_lacp.c
@@ -361,7 +361,8 @@ static int lacp_port_should_be_enabled(struct lacp_port *lacp_port)
struct lacp *lacp = lacp_port->lacp;
if (lacp_port_selected(lacp_port) &&
- lacp_port->agg_lead == lacp->selected_agg_lead)
+ lacp_port->agg_lead == lacp->selected_agg_lead &&
+ lacp_port->partner.state & INFO_STATE_SYNCHRONIZATION)
return true;
return false;
}
@@ -371,7 +372,8 @@ static int lacp_port_should_be_disabled(struct lacp_port *lacp_port)
struct lacp *lacp = lacp_port->lacp;
if (!lacp_port_selected(lacp_port) ||
- lacp_port->agg_lead != lacp->selected_agg_lead)
+ lacp_port->agg_lead != lacp->selected_agg_lead ||
+ !(lacp_port->partner.state & INFO_STATE_SYNCHRONIZATION))
return true;
return false;
}
@@ -966,9 +968,14 @@ static void lacp_port_actor_update(struct lacp_port *lacp_port)
state |= INFO_STATE_LACP_ACTIVITY;
if (lacp_port->lacp->cfg.fast_rate)
state |= INFO_STATE_LACP_TIMEOUT;
- if (lacp_port_selected(lacp_port))
+ if (lacp_port_selected(lacp_port) &&
+ lacp_port_agg_selected(lacp_port)) {
state |= INFO_STATE_SYNCHRONIZATION;
- state |= INFO_STATE_COLLECTING | INFO_STATE_DISTRIBUTING;
+ state &= ~(INFO_STATE_COLLECTING | INFO_STATE_DISTRIBUTING);
+ if (lacp_port->partner.state & INFO_STATE_SYNCHRONIZATION)
+ state |= INFO_STATE_COLLECTING |
+ INFO_STATE_DISTRIBUTING;
+ }
if (lacp_port->state == PORT_STATE_EXPIRED)
state |= INFO_STATE_EXPIRED;
if (lacp_port->state == PORT_STATE_DEFAULTED)

1
src/libteam/series
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@ -7,3 +7,4 @@
0007-Skip-setting-the-same-hwaddr-to-lag-port-to-avoid-di.patch
0008-teamd-register-change-handler-for-TEAM_IFINFO_CHANGE.patch
0009-teamd-prevent-private-change-handler-reentrance.patch
0010-teamd-lacp-update-port-state-according-to-partners-sy.patch