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Virtual interfaces may be part of the bonding like physical interfaces. The
difference is virtual interfaces may disappear dynamically. As an example,
the following CLI sequence may crash the debug image
create vhost-user socket /tmp/sock1
create bond mode lacp
bond add BondEthernet0 VirtualEthernet0/0/0
delete vhost-user VirtualEhernet0/0/0
Notice the virtual interface is deleted without first doing bond delete.
The proper order is to first remove the slave interface from the bond prior
to deleting the virtual interface as shown below. But we should handle it
anyway.
create vhost-user socket /tmp/sock1
create bond mode lacp
bond add BondEthernet0 VirtualEthernet0/0/0
bond del VirtualEthernet0/0/0 <-----
delete vhost-user VirtualEhernet0/0/0
The fix is to register for VNET_SW_INTERFACE_ADD_DEL_FUNCTION and remove
the slave interface from the bond if the to-be-deleted interface is part of
the bond. We check the interface that it is actually up before we send
the lacp pdu. Up means both hw and sw admin up.
Type: fix
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: If4d2da074338b16aab0df54e00d719e55c45221a
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Create lacp-process when the very first slave interface is added to the bond.
Log an event message when lacp-process starts/stops.
Be mindful when lacp-process is signalled to stop.
Type: refactor
Change-Id: I79e10e0a2a385a21a52ae5b8735f24631fdba293
Signed-off-by: Steven Luong <sluong@cisco.com>
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By definition, passive mode means the node does not start sending lacp pdu until
it first hears from the partner or remote.
- Rename ptx machine's BEGIN state to NO_PERIODIC state.
- Put periodic machine in NO_PERIDOIC state when the interface is enabled for
lacp. ptx machine will transition out of NO_PERIODIC state when the local node
hears from the remote or when the local node is configured for active mode.
- Also add send and receive statistics for debugging.
Change-Id: I747953b9595ed31328b2f4f3e7a8d15d01e04d7f
Signed-off-by: Steven Luong <sluong@cisco.com>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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[VPP-1251]
Problem:
When the bond subinterface is removed, it was observed that we lost the lacp
partner. Show hardware shows rx counter goes up, but show interface does not
for the slave interfaces.
Cause:
We reset the interface promiscuous mode when the bond subinterface is deleted.
This causes dpdk not to accept any packet. Leave the interface in promiscuous
mode fixes the problem.
Other fixes:
There are few places we use hw_if_index as if they are sw_if_index. But they
don't necessarily have the same value. As soon as a subinterface is created,
they start to diverge. The fix is to use the correct API for the hw_if_index
and sw_if_index.
Change-Id: I1e6b8bca0a4aae396d217a141271cbf968500c91
Signed-off-by: Steven <sluong@cisco.com>
(cherry picked from commit 42c6599bf3057a7e8f4f00f5b6a9dd72af48d283)
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Add bonding driver to support creation of bond interface which composes of
multiple slave interfaces. The slave interfaces could be physical interfaces,
or just any virtual interfaces. For example, memif interfaces.
The syntax to create a bond interface is
create bond mode <lacp | xor | acitve-backup | broadcast | round-robin>
To enslave an interface to the bond interface,
enslave interface TenGigabitEthernet6/0/0 to BondEthernet0
Please see src/plugins/lacp/lacp_doc.md for more examples and additional
options.
LACP is a control plane protocol which manages and monitors the status of
the slave interfaces. The protocol is part of 802.3ad standard. This patch
implements LACPv1. LACPv2 is not supported.
To enable LACP on the bond interface, specify "mode lacp" when the bond
interface is created. The syntax to enslave a slave interface is the same as
other bonding modes.
Change-Id: I06581d3b87635972f9f0e1ec50b67560fc13e26c
Signed-off-by: Steven <sluong@cisco.com>
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Steven Luong
Dave Barach