From: Mauricio Vasquez B <mauricio.vasquez@polito.it>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
netdev@vger.kernel.org
Subject: [PATCH bpf-next 5/6] Sync uapi/bpf.h to tools/include
Date: Mon, 08 Oct 2018 21:11:17 +0200 [thread overview]
Message-ID: <153902587789.8888.13525051186905732527.stgit@kernel> (raw)
In-Reply-To: <153902585010.8888.3721528971287033661.stgit@kernel>
Sync both files.
Signed-off-by: Mauricio Vasquez B <mauricio.vasquez@polito.it>
---
tools/include/uapi/linux/bpf.h | 36 ++++++++++++++++++++++++++++++++----
1 file changed, 32 insertions(+), 4 deletions(-)
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index f9187b41dff6..bfa042273fad 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -103,6 +103,7 @@ enum bpf_cmd {
BPF_BTF_LOAD,
BPF_BTF_GET_FD_BY_ID,
BPF_TASK_FD_QUERY,
+ BPF_MAP_LOOKUP_AND_DELETE_ELEM,
};
enum bpf_map_type {
@@ -128,6 +129,8 @@ enum bpf_map_type {
BPF_MAP_TYPE_CGROUP_STORAGE,
BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE,
+ BPF_MAP_TYPE_QUEUE,
+ BPF_MAP_TYPE_STACK,
};
enum bpf_prog_type {
@@ -462,6 +465,28 @@ union bpf_attr {
* Return
* 0 on success, or a negative error in case of failure.
*
+ * int bpf_map_push_elem(struct bpf_map *map, const void *value, u64 flags)
+ * Description
+ * Push an element *value* in *map*. *flags* is one of:
+ *
+ * **BPF_EXIST**
+ * If the queue/stack is full, the oldest element is removed to
+ * make room for this.
+ * Return
+ * 0 on success, or a negative error in case of failure.
+ *
+ * int bpf_map_pop_elem(struct bpf_map *map, void *value)
+ * Description
+ * Pop an element from *map*.
+ * Return
+ * 0 on success, or a negative error in case of failure.
+ *
+ * int bpf_map_peek_elem(struct bpf_map *map, void *value)
+ * Description
+ * Get an element from *map* without removing it.
+ * Return
+ * 0 on success, or a negative error in case of failure.
+ *
* int bpf_probe_read(void *dst, u32 size, const void *src)
* Description
* For tracing programs, safely attempt to read *size* bytes from
@@ -789,14 +814,14 @@ union bpf_attr {
*
* int ret;
* struct bpf_tunnel_key key = {};
- *
+ *
* ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
* if (ret < 0)
* return TC_ACT_SHOT; // drop packet
- *
+ *
* if (key.remote_ipv4 != 0x0a000001)
* return TC_ACT_SHOT; // drop packet
- *
+ *
* return TC_ACT_OK; // accept packet
*
* This interface can also be used with all encapsulation devices
@@ -2303,7 +2328,10 @@ union bpf_attr {
FN(skb_ancestor_cgroup_id), \
FN(sk_lookup_tcp), \
FN(sk_lookup_udp), \
- FN(sk_release),
+ FN(sk_release), \
+ FN(map_push_elem), \
+ FN(map_pop_elem), \
+ FN(map_peek_elem),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
next prev parent reply other threads:[~2018-10-09 2:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-08 19:10 [PATCH bpf-next 0/6] Implement queue/stack maps Mauricio Vasquez B
2018-10-08 19:10 ` [PATCH bpf-next 1/6] bpf: rename stack trace map operations Mauricio Vasquez B
2018-10-09 1:40 ` Song Liu
2018-10-09 15:34 ` Mauricio Vasquez
2018-10-08 19:11 ` [PATCH bpf-next 2/6] bpf/syscall: allow key to be null in map functions Mauricio Vasquez B
2018-10-08 19:11 ` [PATCH bpf-next 3/6] bpf: add MAP_LOOKUP_AND_DELETE_ELEM syscall Mauricio Vasquez B
2018-10-09 1:13 ` Song Liu
2018-10-09 12:56 ` Mauricio Vasquez
2018-10-08 19:11 ` [PATCH bpf-next 4/6] bpf: add queue and stack maps Mauricio Vasquez B
2018-10-09 1:36 ` Song Liu
2018-10-09 13:05 ` Mauricio Vasquez
2018-10-09 18:08 ` Song Liu
2018-10-08 19:11 ` Mauricio Vasquez B [this message]
2018-10-08 19:11 ` [PATCH bpf-next 6/6] selftests/bpf: add test cases for " Mauricio Vasquez B
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