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AF_XDP-interaction: Move function xsk_btf__init_xdp_hint

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Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
This commit is contained in:
Jesper Dangaard Brouer
2022-03-21 12:47:56 +01:00
parent a6e4dd8748
commit 02ccbfc152
1 changed files with 53 additions and 53 deletions
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106
AF_XDP-interaction/lib_xsk_extend.c
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@@ -67,59 +67,6 @@ static bool __xsk_equal_fn(const void *k1, const void *k2, void *ctx)
return k1 == k2;
}
int xsk_btf__init_xdp_hint(struct btf *btf_obj,
const char *xdp_hints_name,
struct xsk_btf_info **xbi)
{
const struct btf_member *m;
const struct btf_type *t;
unsigned short vlen;
int i, id, ret = 0;
if (!xbi)
return -EINVAL;
/* Require XDP-hints are defined as a struct */
id = btf__find_by_name_kind(btf_obj, xdp_hints_name, BTF_KIND_STRUCT);
if (id < 0) {
ret = id;
goto error_btf;
}
t = btf__type_by_id(btf_obj, id);
*xbi = malloc(sizeof(**xbi));
if (!*xbi) {
ret = -ENOMEM;
goto error_btf;
}
hashmap__init(&(*xbi)->map, __xsk_hash_fn, __xsk_equal_fn, NULL);
/* Validate no BTF field is a bitfield */
m = btf_members(t);
vlen = BTF_INFO_VLEN(t->info);
for (i = 0; i < vlen; i++, m++) {
if (BTF_MEMBER_BITFIELD_SIZE(m->offset)) {
ret = -ENOTSUP;
goto error_entry;
}
}
(*xbi)->btf = btf_obj;
(*xbi)->type = t;
(*xbi)->btf_type_id = id;
return ret;
error_entry:
__xsk_btf_free_hash(*xbi);
free(*xbi);
error_btf:
return ret;
}
static int __xsk_btf_field_entry(struct xsk_btf_info *xbi, const char *field,
struct xsk_btf_member *entry)
{
@@ -219,3 +166,56 @@ int xsk_btf__read_field(void **dest, size_t size, const char *field,
xsk_btf__read(dest, size, entry, xbi,addr);
return 0;
}
int xsk_btf__init_xdp_hint(struct btf *btf_obj,
const char *xdp_hints_name,
struct xsk_btf_info **xbi)
{
const struct btf_member *m;
const struct btf_type *t;
unsigned short vlen;
int i, id, ret = 0;
if (!xbi)
return -EINVAL;
/* Require XDP-hints are defined as a struct */
id = btf__find_by_name_kind(btf_obj, xdp_hints_name, BTF_KIND_STRUCT);
if (id < 0) {
ret = id;
goto error_btf;
}
t = btf__type_by_id(btf_obj, id);
*xbi = malloc(sizeof(**xbi));
if (!*xbi) {
ret = -ENOMEM;
goto error_btf;
}
hashmap__init(&(*xbi)->map, __xsk_hash_fn, __xsk_equal_fn, NULL);
/* Validate no BTF field is a bitfield */
m = btf_members(t);
vlen = BTF_INFO_VLEN(t->info);
for (i = 0; i < vlen; i++, m++) {
if (BTF_MEMBER_BITFIELD_SIZE(m->offset)) {
ret = -ENOTSUP;
goto error_entry;
}
}
(*xbi)->btf = btf_obj;
(*xbi)->type = t;
(*xbi)->btf_type_id = id;
return ret;
error_entry:
__xsk_btf_free_hash(*xbi);
free(*xbi);
error_btf:
return ret;
}