20.10.2026 00:35, Stephen Hemminger пишет:
On Mon, 19 Oct 2026 22:10:11 +0100
Konstantin Ananyev <[email protected]> wrote:
Document the data plane limitation in the file docstring of
rte_bpf_ethdev.h: packet callback execution expects only one
thread per port/queue pair at a time, making concurrent bursts
(such as with RTE_ETH_TX_OFFLOAD_MT_LOCKFREE, shared RX queues,
or multi-threaded software PMDs) unsupported.
Not sure what do you mean by:
'shared RX queues' and 'multi-threaded software PMDs'. Can you probably
clarify?
The restriction is that: rte_bpf_eth_tx_elf_load() can not be be used with
RTE_ETH_TX_OFFLOAD_MT_LOCKFREE
because if that offload is set, application is allowed to share a single
transmit queue across multiple lcore.
I understand that part.
My question was: what Marat means by:
'shared RX queues' and 'multi-threaded software PMDs'
AFAIK, we don't have such things right now.
Correct me, if I am wrong.
It would be better if the attempts to load on such a device failed.
But in the is not enough because at least in theory a user could enable
the offload later by reconfiguring the device.
