From: Amery Hung <ameryhung@gmail.com>
To: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org, daniel@iogearbox.net, andrii@kernel.org,
alexei.starovoitov@gmail.com, martin.lau@kernel.org,
sinquersw@gmail.com, toke@redhat.com, jhs@mojatatu.com,
jiri@resnulli.us, stfomichev@gmail.com,
ekarani.silvestre@ccc.ufcg.edu.br, yangpeihao@sjtu.edu.cn,
xiyou.wangcong@gmail.com, yepeilin.cs@gmail.com,
ameryhung@gmail.com, amery.hung@bytedance.com
Subject: [PATCH bpf-next v2 09/14] bpf: net_sched: Support updating bstats
Date: Fri, 20 Dec 2024 11:55:35 -0800 [thread overview]
Message-ID: <20241220195619.2022866-10-amery.hung@gmail.com> (raw)
In-Reply-To: <20241220195619.2022866-1-amery.hung@gmail.com>
From: Amery Hung <amery.hung@bytedance.com>
Add a kfunc to update Qdisc bstats when an skb is dequeued. The kfunc is
only available in .dequeue programs.
Signed-off-by: Amery Hung <amery.hung@bytedance.com>
---
net/sched/bpf_qdisc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c
index bbe7aded6f24..39f01daed48a 100644
--- a/net/sched/bpf_qdisc.c
+++ b/net/sched/bpf_qdisc.c
@@ -210,6 +210,15 @@ __bpf_kfunc void bpf_qdisc_reset_destroy_epilogue(struct Qdisc *sch)
qdisc_watchdog_cancel(&q->watchdog);
}
+/* bpf_qdisc_bstats_update - Update Qdisc basic statistics
+ * @sch: The qdisc from which an skb is dequeued.
+ * @skb: The skb to be dequeued.
+ */
+__bpf_kfunc void bpf_qdisc_bstats_update(struct Qdisc *sch, const struct sk_buff *skb)
+{
+ bstats_update(&sch->bstats, skb);
+}
+
__bpf_kfunc_end_defs();
BTF_KFUNCS_START(qdisc_kfunc_ids)
@@ -220,6 +229,7 @@ BTF_ID_FLAGS(func, bpf_dynptr_from_skb, KF_TRUSTED_ARGS)
BTF_ID_FLAGS(func, bpf_qdisc_watchdog_schedule, KF_TRUSTED_ARGS)
BTF_ID_FLAGS(func, bpf_qdisc_init_prologue, KF_TRUSTED_ARGS)
BTF_ID_FLAGS(func, bpf_qdisc_reset_destroy_epilogue, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_qdisc_bstats_update, KF_TRUSTED_ARGS)
BTF_KFUNCS_END(qdisc_kfunc_ids)
BTF_SET_START(qdisc_common_kfunc_set)
@@ -234,6 +244,7 @@ BTF_SET_END(qdisc_enqueue_kfunc_set)
BTF_SET_START(qdisc_dequeue_kfunc_set)
BTF_ID(func, bpf_qdisc_watchdog_schedule)
+BTF_ID(func, bpf_qdisc_bstats_update)
BTF_SET_END(qdisc_dequeue_kfunc_set)
static int bpf_qdisc_kfunc_filter(const struct bpf_prog *prog, u32 kfunc_id)
--
2.47.0
next prev parent reply other threads:[~2024-12-20 19:56 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-20 19:55 [PATCH bpf-next v2 00/14] bpf qdisc Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 01/14] bpf: Support getting referenced kptr from struct_ops argument Amery Hung
2025-01-23 9:57 ` Eduard Zingerman
2025-01-23 19:41 ` Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 02/14] selftests/bpf: Test referenced kptr arguments of struct_ops programs Amery Hung
2025-01-23 9:57 ` Eduard Zingerman
2025-01-24 0:04 ` Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 03/14] bpf: Allow struct_ops prog to return referenced kptr Amery Hung
2025-01-15 15:25 ` Ming Lei
2025-01-23 9:57 ` Eduard Zingerman
2025-01-23 18:19 ` Eduard Zingerman
2024-12-20 19:55 ` [PATCH bpf-next v2 04/14] selftests/bpf: Test returning referenced kptr from struct_ops programs Amery Hung
2025-01-23 9:58 ` Eduard Zingerman
2024-12-20 19:55 ` [PATCH bpf-next v2 05/14] bpf: net_sched: Support implementation of Qdisc_ops in bpf Amery Hung
2025-01-09 15:00 ` Amery Hung
2025-01-10 0:28 ` Martin KaFai Lau
2025-01-10 1:20 ` Jakub Kicinski
2024-12-20 19:55 ` [PATCH bpf-next v2 06/14] bpf: net_sched: Add basic bpf qdisc kfuncs Amery Hung
2025-01-10 0:24 ` Martin KaFai Lau
2025-01-10 18:00 ` Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 07/14] bpf: Search and add kfuncs in struct_ops prologue and epilogue Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 08/14] bpf: net_sched: Add a qdisc watchdog timer Amery Hung
2025-01-09 0:20 ` Martin KaFai Lau
2025-01-09 15:00 ` Amery Hung
2024-12-20 19:55 ` Amery Hung [this message]
2024-12-20 19:55 ` [PATCH bpf-next v2 10/14] bpf: net_sched: Support updating qstats Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 11/14] bpf: net_sched: Allow writing to more Qdisc members Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 12/14] libbpf: Support creating and destroying qdisc Amery Hung
2024-12-20 19:55 ` [PATCH bpf-next v2 13/14] selftests: Add a basic fifo qdisc test Amery Hung
2025-01-10 0:05 ` Martin KaFai Lau
2024-12-20 19:55 ` [PATCH bpf-next v2 14/14] selftests: Add a bpf fq qdisc to selftest Amery Hung
2025-01-09 23:36 ` Martin KaFai Lau
2025-01-02 17:29 ` [PATCH bpf-next v2 00/14] bpf qdisc Toke Høiland-Jørgensen
2025-01-10 1:43 ` Martin KaFai Lau
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