25d11a86c5
The bpf folder didn't actual contain a test application, but instead basic examples of BPF code for use with testpmd. Therefore we can move it to the `examples` folder. Being different, it also needs a README with it, explaining what it is and how to use it. References to the code from the testpmd docs are suitably updated. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
32 lines
673 B
C
32 lines
673 B
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2018 Intel Corporation
|
|
*/
|
|
|
|
/*
|
|
* eBPF program sample.
|
|
* Accepts pointer to struct rte_mbuf as an input parameter.
|
|
* cleanup mbuf's vlan_tci and all related RX flags
|
|
* (PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED).
|
|
* Doesn't touch contents of packet data.
|
|
* To compile:
|
|
* clang -O2 -I${RTE_SDK}/${RTE_TARGET}/include \
|
|
* -target bpf -Wno-int-to-void-pointer-cast -c t2.c
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <rte_config.h>
|
|
#include "mbuf.h"
|
|
|
|
uint64_t
|
|
entry(void *pkt)
|
|
{
|
|
struct rte_mbuf *mb;
|
|
|
|
mb = pkt;
|
|
mb->vlan_tci = 0;
|
|
mb->ol_flags &= ~(PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
|
|
|
|
return 1;
|
|
}
|