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Update tc-bpf.8 man page examples 

This patch updates the tc-bpf.8 example application for changes to the
struct bpf_elf_map definition. In it's current form, things compile, but
the resulting object file is rejected by the verifier when attempting to
load it through tc.

Signed-off-by: Lucas Siba <lucas.siba@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
[ dropped the unnecessary flags initialization on commit ]
This commit is contained in:
Lucas Siba 2019-04-20 11:40 UTC 2019-04-20 12:06:18 -07:00 committed by David Ahern
parent 10fb5faec1
commit 4d9e90f36b
1 changed files with 11 additions and 1 deletions
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12
man/man8/tc-bpf.8
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@ -597,6 +597,7 @@ struct bpf_elf_map __section("maps") map_stats = {
.size_key = sizeof(uint32_t), .size_key = sizeof(uint32_t),
.size_value = sizeof(struct tuple), .size_value = sizeof(struct tuple),
.max_elem = BPF_MAX_MARK, .max_elem = BPF_MAX_MARK,
.pinning = PIN_GLOBAL_NS,
}; };
static inline void cls_update_stats(const struct __sk_buff *skb, static inline void cls_update_stats(const struct __sk_buff *skb,
@ -709,13 +710,22 @@ in both examples was:
#define likely(x) __builtin_expect(!!(x), 1) #define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0) #define unlikely(x) __builtin_expect(!!(x), 0)
/* Used map structure */ /* Object pinning settings */
#define PIN_NONE 0
#define PIN_OBJECT_NS 1
#define PIN_GLOBAL_NS 2
/* ELF map definition */
struct bpf_elf_map { struct bpf_elf_map {
__u32 type; __u32 type;
__u32 size_key; __u32 size_key;
__u32 size_value; __u32 size_value;
__u32 max_elem; __u32 max_elem;
__u32 flags;
__u32 id; __u32 id;
__u32 pinning;
__u32 inner_id;
__u32 inner_idx;
}; };
/* Some used BPF function calls. */ /* Some used BPF function calls. */