Hello, Please use --cc-cmd devtools/get-maintainer.sh so maintainers are Cc'ed.
18/06/2026 16:44, Dawid Wesierski: > From: Marek Kasiewicz <[email protected]> > > Add rte_eth_hdrs_set_mbuf_callback() that allows applications to > register a callback providing custom payload mbufs for header split RX > mode. When registered, a PMD that supports header split is expected to > call this callback at mbuf allocation points to obtain user-provided > payload buffers instead of allocating from the mempool. What is not working with the current API? You can already use an external buffer. > This enables zero-copy RX for header split: the NIC DMAs the payload > directly into application-managed buffers (e.g., mapped frame buffers > with known IOVA), bypassing an extra memcpy from the mempool mbuf. Do you know the flag RTE_PKTMBUF_POOL_F_PINNED_EXT_BUF? > A new struct rte_eth_hdrs_mbuf describes the payload buffer (virtual > address and IOVA), and the new dev_ops hook hdrs_mbuf_set_cb lets each > PMD wire the callback to its receive queue state. > > The API is marked experimental and exported with version 26.07. I think this API is not necessary.
