Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
  net: qede: use extack in qede_parse_actions()
  net: qede: propagate extack through qede_flow_spec_validate()
  net: qede: use faked extack in qede_flow_spec_to_rule()
  net: qede: use extack in qede_parse_flow_attr()
  net: qede: add extack in qede_add_tc_flower_fltr()
  net: qede: use extack in qede_flow_parse_udp_v4()
  net: qede: use extack in qede_flow_parse_udp_v6()
  net: qede: use extack in qede_flow_parse_tcp_v4()
  net: qede: use extack in qede_flow_parse_tcp_v6()
  net: qede: use extack in qede_flow_parse_v4_common()
  net: qede: use extack in qede_flow_parse_v6_common()
  net: qede: use extack in qede_set_v4_tuple_to_profile()
  net: qede: use extack in qede_set_v6_tuple_to_profile()
  net: qede: use extack in qede_flow_parse_ports()
  net: usb: smsc95xx: stop lying about skb->truesize
  net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
  af_unix: Add dead flag to struct scm_fp_list.
  net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
  octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
  gve: Use ethtool_sprintf/puts() to fill stats strings
  ...

1 files changed, 121 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c
new file mode 100644
index 000000000000..fcfbfe0336b4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+
+extern void bbr_init(struct sock *sk) __ksym;
+extern void bbr_main(struct sock *sk, const struct rate_sample *rs) __ksym;
+extern u32 bbr_sndbuf_expand(struct sock *sk) __ksym;
+extern u32 bbr_undo_cwnd(struct sock *sk) __ksym;
+extern void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym;
+extern u32 bbr_ssthresh(struct sock *sk) __ksym;
+extern u32 bbr_min_tso_segs(struct sock *sk) __ksym;
+extern void bbr_set_state(struct sock *sk, u8 new_state) __ksym;
+
+extern void dctcp_init(struct sock *sk) __ksym;
+extern void dctcp_update_alpha(struct sock *sk, u32 flags) __ksym;
+extern void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev) __ksym;
+extern u32 dctcp_ssthresh(struct sock *sk) __ksym;
+extern u32 dctcp_cwnd_undo(struct sock *sk) __ksym;
+extern void dctcp_state(struct sock *sk, u8 new_state) __ksym;
+
+extern void cubictcp_init(struct sock *sk) __ksym;
+extern u32 cubictcp_recalc_ssthresh(struct sock *sk) __ksym;
+extern void cubictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked) __ksym;
+extern void cubictcp_state(struct sock *sk, u8 new_state) __ksym;
+extern void cubictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym;
+extern void cubictcp_acked(struct sock *sk, const struct ack_sample *sample) __ksym;
+
+SEC("struct_ops/init")
+void BPF_PROG(init, struct sock *sk)
+{
+	bbr_init(sk);
+	dctcp_init(sk);
+	cubictcp_init(sk);
+}
+
+SEC("struct_ops/in_ack_event")
+void BPF_PROG(in_ack_event, struct sock *sk, u32 flags)
+{
+	dctcp_update_alpha(sk, flags);
+}
+
+SEC("struct_ops/cong_control")
+void BPF_PROG(cong_control, struct sock *sk, const struct rate_sample *rs)
+{
+	bbr_main(sk, rs);
+}
+
+SEC("struct_ops/cong_avoid")
+void BPF_PROG(cong_avoid, struct sock *sk, u32 ack, u32 acked)
+{
+	cubictcp_cong_avoid(sk, ack, acked);
+}
+
+SEC("struct_ops/sndbuf_expand")
+u32 BPF_PROG(sndbuf_expand, struct sock *sk)
+{
+	return bbr_sndbuf_expand(sk);
+}
+
+SEC("struct_ops/undo_cwnd")
+u32 BPF_PROG(undo_cwnd, struct sock *sk)
+{
+	bbr_undo_cwnd(sk);
+	return dctcp_cwnd_undo(sk);
+}
+
+SEC("struct_ops/cwnd_event")
+void BPF_PROG(cwnd_event, struct sock *sk, enum tcp_ca_event event)
+{
+	bbr_cwnd_event(sk, event);
+	dctcp_cwnd_event(sk, event);
+	cubictcp_cwnd_event(sk, event);
+}
+
+SEC("struct_ops/ssthresh")
+u32 BPF_PROG(ssthresh, struct sock *sk)
+{
+	bbr_ssthresh(sk);
+	dctcp_ssthresh(sk);
+	return cubictcp_recalc_ssthresh(sk);
+}
+
+SEC("struct_ops/min_tso_segs")
+u32 BPF_PROG(min_tso_segs, struct sock *sk)
+{
+	return bbr_min_tso_segs(sk);
+}
+
+SEC("struct_ops/set_state")
+void BPF_PROG(set_state, struct sock *sk, u8 new_state)
+{
+	bbr_set_state(sk, new_state);
+	dctcp_state(sk, new_state);
+	cubictcp_state(sk, new_state);
+}
+
+SEC("struct_ops/pkts_acked")
+void BPF_PROG(pkts_acked, struct sock *sk, const struct ack_sample *sample)
+{
+	cubictcp_acked(sk, sample);
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops tcp_ca_kfunc = {
+	.init		= (void *)init,
+	.in_ack_event	= (void *)in_ack_event,
+	.cong_control	= (void *)cong_control,
+	.cong_avoid	= (void *)cong_avoid,
+	.sndbuf_expand	= (void *)sndbuf_expand,
+	.undo_cwnd	= (void *)undo_cwnd,
+	.cwnd_event	= (void *)cwnd_event,
+	.ssthresh	= (void *)ssthresh,
+	.min_tso_segs	= (void *)min_tso_segs,
+	.set_state	= (void *)set_state,
+	.pkts_acked     = (void *)pkts_acked,
+	.name		= "tcp_ca_kfunc",
+};
+
+char _license[] SEC("license") = "GPL";