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- hash is great. But it is a bit too slow for the DP. Use direct array indexing
to quickly retrieve the slave interface.
- the algorithm used by flow hash is great. But it is a bit too slow for the DP.
Use l2_hash_hash() extracted from lb_hash.h which ECMP is using. It makes use
of intrinsic crc32 instruction set.
- shortcut modulo arithmetic when the operand is 2**x (where x up to 4) to
avoid division instruction.
- special case for link count == 1 in bond_tx_fn()
- use clib_mem_unaligned to access data for the packet to avoid alignment error
- Fix some typos for packet tracing.
Change-Id: I8eae3ad497061c5473aa675ba894ee0211120d25
Signed-off-by: Steven <sluong@cisco.com>
(cherry picked from commit 0d88301a576191a0e330e539cf1dcb3837ee1bf6)
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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>
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In dpdk based bonding, when the bond interface is configured for l2,
it automatically sets the bond interface to promiscuous mode and sets rx
redirect to ethernet-input. This allows traffic to be bridged to
non compute node facing interface when it is received from the compute
node interface.
For native vpp bonding, we need to do similar things. When the bond interface
is configured for l2, we set the slave interfaces to promiscuous mode
and set rx redirect to ethernet-input because dpdk does not know anything
about the bond interface. Likewise, when a new interface is enslaved, we also
need to do the same thing if the bond interface has already been configured
for l2.
Change-Id: I7e168008e8a4221be74929b2a20e6db0ce8f3110
Signed-off-by: Steven <sluong@cisco.com>
(cherry picked from commit 4f8863b21405d1ab3e067e978a60be72a343358b)
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While https://gerrit.fd.io/r/#/c/11316/ took care of 1 packet/frame for
most of the bonding modes, it missed the broadcast mode. This patch is
to fix the 1 packet/frame for the broadcast mode.
Change-Id: Iac48a2977c7f702f341479cc712a6448090dbc60
Signed-off-by: Steven <sluong@cisco.com>
(cherry picked from commit 22b5be06fae6f9a8b71c53fec548aabbdf69026b)
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For the debug image, if the interface is removed and the trace was
collected prior to the interface delete, show trace may cause a crash.
This is because vnet_get_sw_interface_name and vnet_get_sup_hw_interface
are not safe if the interface is deleted.
The fix is to use format_vnet_sw_if_index_name if all we need is to
get the interface name in the trace to display. It would show "DELETED"
which is better than a crash.
Change-Id: I912402d3e71592ece9f49d36c8a6b7af97f3b69e
Signed-off-by: Steven <sluong@cisco.com>
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rename "enslave interface <slave> to <BondEthernetx>" to
"bond add <BondEthernetx> <slave>
"detach interface <slave>" to
"bond del <slave>"
Change-Id: I1bf8f017517b1f8a823127c7efedd3766e45cd5b
Signed-off-by: Steven <sluong@cisco.com>
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coverity complains about statements in function A
function A
{
x % vec_len (y)
}
because vec_len (y) is a macro and may return 0 if the pointer y is null.
But coverity fails to realize the same statement vec_len (y) was already
invoked and checked in the caller of function A and punt if vec_len (y) is 0.
We can fix the coverity warning and shave off a few cpu cycles by caching
the result of vec_len (y) and pass it around to avoid calling vec_len (y)
again in multiple places.
Change-Id: I095166373abd3af3859646f860ee97c52f12fb50
Signed-off-by: Steven <sluong@cisco.com>
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We were only puting one packet per frame to the output node. Change to
buffer multiple packets per frame. Performance is now on top of dpdk-based
bonding.
Put a spinlock in the tx thread in case the rug is pulled under us.
Change-Id: Ifda5af086a984a7301972cd6c8e428217f676a95
Signed-off-by: Steven <sluong@cisco.com>
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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