> In cperf_set_ops_security_ipsec(), the same mbuf is reused across multiple
> throughput iterations. For outbound (encap) IPsec the PMD may modify
> mbuf metadata such as data_off, data_len and pkt_len as part of in-place
> protocol processing. When the mbuf is recycled for the next burst those
> modifications must be undone so the PMD always sees a clean, freshly-
> allocated-like buffer.
>
> Use rte_pktmbuf_reset() to restore the mbuf to its post-alloc state in a PMD-
> agnostic manner, rather than patching individual fields with driver-specific
> knowledge of the expected offset values.
>
> Without this reset, drivers that back-adjust data_off after encap (e.g. DPAA2
> SEC, which advances data_off by SEC_FLC_DHR_OUTBOUND on each
> dequeue) will receive a buffer with insufficient headroom on the second and
> subsequent enqueues, causing hardware errors such as:
>
> DPAA2_SEC: SEC encap returned Error - 50000045
> (QI error 0x45: DHR correction underflow, reuse mode)
> DPAA2_SEC: SEC returned Error - 50000020
> (QI error 0x20: FD format error)
>
> Fixes: 3b7d9f2bc6 ("app/test-crypto-perf: add ipsec lookaside support")
> Cc: [email protected]
>
> Signed-off-by: Gagandeep Singh <[email protected]>
> ---
Acked-by: Nithinsen Kaithakadan <[email protected]>
