On 4/2/2019 4:46 PM, Xiaolong Ye wrote: > Add a new PMD driver for AF_XDP which is a proposed faster version of > AF_PACKET interface in Linux. More info about AF_XDP, please refer to [1] > [2]. > > This is the vanilla version PMD which just uses a raw buffer registered as > the umem. > > [1] https://fosdem.org/2018/schedule/event/af_xdp/ > [2] https://lwn.net/Articles/745934/ > > Signed-off-by: Xiaolong Ye <xiaolong...@intel.com>
<...> > @@ -0,0 +1,956 @@ > +/* SPDX-License-Identifier: BSD-3-Clause > + * Copyright(c) 2019 Intel Corporation. > + */ > +#include <bpf/bpf.h> > +#include <xsk.h> Under linux, both headers are in same 'bpf' folder, why one included as 'bpf/bpf.h' but other 'xsk.h'? Perhaps this is not problem when headers are installed into system folders, but I am compiling using RTE_KERNELDIR, which used in Makefile as: -I$(RTE_KERNELDIR)/tools/lib/bpf This fails to find 'bpf/bpf.h' Also for '-lbpf', shouldn't need to add '-L$(RTE_KERNELDIR)/tools/lib/bpf', to new added line in 'rte.app.mk', so that it can find the library? I assume you are building in a system with new kernel, I think you need this for functionality, where 'xsk.h' is located in that case? Because I was thinking building and installing libbpf can solve the issue but it is not installing 'xsk.h', not sure why, so not exactly solving. if you still need "CFLAGS += -I$(RTE_KERNELDIR)/tools/lib/bpf" for your case, does it make sense update as following: CFLAGS += -I$(RTE_KERNELDIR)/tools/lib #include <bpf/xsk.h>
