T5286: drop XDP support for ethernet and bonding interfaces

... this is a step towards a new and better implementation that will utilize
VPP.

1 files changed, 0 insertions, 161 deletions

diff --git a/src/xdp/common/common_libbpf.c b/src/xdp/common/common_libbpf.c
deleted file mode 100644
index 443ca4c66..000000000
--- a/src/xdp/common/common_libbpf.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/* Common function that with time should be moved to libbpf */
-
-#include <errno.h>
-#include <string.h>
-
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-#include "common_libbpf.h"
-
-/* From: include/linux/err.h */
-#define MAX_ERRNO       4095
-#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
-static inline bool IS_ERR_OR_NULL(const void *ptr)
-{
-        return (!ptr) || IS_ERR_VALUE((unsigned long)ptr);
-}
-
-#define pr_warning printf
-
-/* As close as possible to libbpf bpf_prog_load_xattr(), with the
- * difference of handling pinned maps.
- */
-int bpf_prog_load_xattr_maps(const struct bpf_prog_load_attr_maps *attr,
-			     struct bpf_object **pobj, int *prog_fd)
-{
-	struct bpf_program *prog, *first_prog = NULL;
-	enum bpf_attach_type expected_attach_type;
-	enum bpf_prog_type prog_type;
-	struct bpf_object *obj;
-	struct bpf_map *map;
-	int err;
-	int i;
-
-	if (!attr)
-		return -EINVAL;
-	if (!attr->file)
-		return -EINVAL;
-
-	obj = bpf_object__open_file(attr->file, NULL);
-
-	if (libbpf_get_error(obj))
-		return -EINVAL;
-
-	prog = bpf_object__next_program(obj, NULL);
-	bpf_program__set_type(prog, attr->prog_type);
-
-	bpf_object__for_each_program(prog, obj) {
-		/*
-		 * If type is not specified, try to guess it based on
-		 * section name.
-		 */
-		prog_type = attr->prog_type;
-		// Was: prog->prog_ifindex = attr->ifindex;
-		bpf_program__set_ifindex(prog, attr->ifindex);
-
-		expected_attach_type = attr->expected_attach_type;
-#if 0 /* Use internal libbpf variables */
-		if (prog_type == BPF_PROG_TYPE_UNSPEC) {
-			err = bpf_program__identify_section(prog, &prog_type,
-							    &expected_attach_type);
-			if (err < 0) {
-				bpf_object__close(obj);
-				return -EINVAL;
-			}
-		}
-#endif
-
-		bpf_program__set_type(prog, prog_type);
-		bpf_program__set_expected_attach_type(prog,
-						      expected_attach_type);
-
-		if (!first_prog)
-			first_prog = prog;
-	}
-
-	/* Reset attr->pinned_maps.map_fd to identify successful file load */
-	for (i = 0; i < attr->nr_pinned_maps; i++)
-		attr->pinned_maps[i].map_fd = -1;
-
-	bpf_map__for_each(map, obj) {
-		const char* mapname = bpf_map__name(map);
-
-		if (bpf_map__type(map) != BPF_MAP_TYPE_PERF_EVENT_ARRAY)
-			bpf_map__set_ifindex(map, attr->ifindex);
-                        /* Was: map->map_ifindex = attr->ifindex; */
-
-		for (i = 0; i < attr->nr_pinned_maps; i++) {
-			struct bpf_pinned_map *pin_map = &attr->pinned_maps[i];
-			int fd;
-
-			if (strcmp(mapname, pin_map->name) != 0)
-				continue;
-
-			/* Matched, try opening pinned file */
-			fd = bpf_obj_get(pin_map->filename);
-			if (fd > 0) {
-				/* Use FD from pinned map as replacement */
-				bpf_map__reuse_fd(map, fd);
-				/* TODO: Might want to set internal map "name"
-				 * if opened pinned map didn't, to allow
-				 * bpf_object__find_map_fd_by_name() to work.
-				 */
-				pin_map->map_fd = fd;
-				continue;
-			}
-			/* Could not open pinned filename map, then this prog
-			 * should then pin the map, BUT this can only happen
-			 * after bpf_object__load().
-			 */
-		}
-	}
-
-	if (!first_prog) {
-		pr_warning("object file doesn't contain bpf program\n");
-		bpf_object__close(obj);
-		return -ENOENT;
-	}
-
-	err = bpf_object__load(obj);
-	if (err) {
-		bpf_object__close(obj);
-		return -EINVAL;
-	}
-
-	/* Pin the maps that were not loaded via pinned filename */
-	bpf_map__for_each(map, obj) {
-		const char* mapname = bpf_map__name(map);
-
-		for (i = 0; i < attr->nr_pinned_maps; i++) {
-			struct bpf_pinned_map *pin_map = &attr->pinned_maps[i];
-			int err;
-
-			if (strcmp(mapname, pin_map->name) != 0)
-				continue;
-
-			/* Matched, check if map is already loaded */
-			if (pin_map->map_fd != -1)
-				continue;
-
-			/* Needs to be pinned */
-			err = bpf_map__pin(map, pin_map->filename);
-			if (err)
-				continue;
-			pin_map->map_fd = bpf_map__fd(map);
-		}
-	}
-
-	/* Help user if requested map name that doesn't exist */
-	for (i = 0; i < attr->nr_pinned_maps; i++) {
-		struct bpf_pinned_map *pin_map = &attr->pinned_maps[i];
-
-		if (pin_map->map_fd < 0)
-			pr_warning("%s() requested mapname:%s not seen\n",
-				   __func__, pin_map->name);
-	}
-
-	*pobj = obj;
-	*prog_fd = bpf_program__fd(first_prog);
-	return 0;
-}