Calling rte_eth_bond_8023ad_dedicated_queues_enable() leads to exhaustion of the LACP packet pool

https://bugs.dpdk.org/show_bug.cgi?id=1415

Bug ID: 1415
Summary: Calling rte_eth_bond_8023ad_dedicated_queues_enable()
leads to exhaustion of the LACP packet pool
Product: DPDK
Version: 23.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

When dedicated queues are enabled on a bond interface by calling rte_eth_bond_8023ad_dedicated_queues_enable(), DPDK eventually starts repeatedly loggin "tx_machine(580) - Failed to allocate LACP packet from pool". According to the code of tx_machine(), this log entry means that the mbuf pool created to send LACP packets (i.e. port->mbuf_pool) is exhausted.

The problem occurs about 10 minutes after my application (i.e.
https://github.com/AltraMayor/gatekeeper ) starts, and I can reproduce it with one or two members in the bond interface. The problem does not occur if I remove the call to rte_eth_bond_8023ad_dedicated_queues_enable().

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