1 files changed, 34 insertions, 28 deletions

diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp.c b/tools/testing/selftests/bpf/progs/bpf_dctcp.c
index 460682759aed..3c9ffe340312 100644
--- a/tools/testing/selftests/bpf/progs/bpf_dctcp.c
+++ b/tools/testing/selftests/bpf/progs/bpf_dctcp.c
@@ -6,15 +6,23 @@
  * the kernel BPF logic.
  */
 
-#include <stddef.h>
-#include <linux/bpf.h>
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/tcp.h>
-#include <errno.h>
+#include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_tracing.h>
-#include "bpf_tcp_helpers.h"
+
+#ifndef EBUSY
+#define EBUSY 16
+#endif
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#define min_not_zero(x, y) ({			\
+	typeof(x) __x = (x);			\
+	typeof(y) __y = (y);			\
+	__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
+static bool before(__u32 seq1, __u32 seq2)
+{
+	return (__s32)(seq1-seq2) < 0;
+}
 
 char _license[] SEC("license") = "GPL";
 
@@ -35,7 +43,7 @@ struct {
 
 #define DCTCP_MAX_ALPHA	1024U
 
-struct dctcp {
+struct bpf_dctcp {
 	__u32 old_delivered;
 	__u32 old_delivered_ce;
 	__u32 prior_rcv_nxt;
@@ -48,8 +56,7 @@ struct dctcp {
 static unsigned int dctcp_shift_g = 4; /* g = 1/2^4 */
 static unsigned int dctcp_alpha_on_init = DCTCP_MAX_ALPHA;
 
-static __always_inline void dctcp_reset(const struct tcp_sock *tp,
-					struct dctcp *ca)
+static void dctcp_reset(const struct tcp_sock *tp, struct bpf_dctcp *ca)
 {
 	ca->next_seq = tp->snd_nxt;
 
@@ -57,11 +64,11 @@ static __always_inline void dctcp_reset(const struct tcp_sock *tp,
 	ca->old_delivered_ce = tp->delivered_ce;
 }
 
-SEC("struct_ops/dctcp_init")
+SEC("struct_ops")
 void BPF_PROG(dctcp_init, struct sock *sk)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
-	struct dctcp *ca = inet_csk_ca(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
 	int *stg;
 
 	if (!(tp->ecn_flags & TCP_ECN_OK) && fallback[0]) {
@@ -104,21 +111,21 @@ void BPF_PROG(dctcp_init, struct sock *sk)
 	dctcp_reset(tp, ca);
 }
 
-SEC("struct_ops/dctcp_ssthresh")
+SEC("struct_ops")
 __u32 BPF_PROG(dctcp_ssthresh, struct sock *sk)
 {
-	struct dctcp *ca = inet_csk_ca(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	ca->loss_cwnd = tp->snd_cwnd;
 	return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U);
 }
 
-SEC("struct_ops/dctcp_update_alpha")
+SEC("struct_ops")
 void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
-	struct dctcp *ca = inet_csk_ca(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
 
 	/* Expired RTT */
 	if (!before(tp->snd_una, ca->next_seq)) {
@@ -144,16 +151,16 @@ void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags)
 	}
 }
 
-static __always_inline void dctcp_react_to_loss(struct sock *sk)
+static void dctcp_react_to_loss(struct sock *sk)
 {
-	struct dctcp *ca = inet_csk_ca(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	ca->loss_cwnd = tp->snd_cwnd;
 	tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U);
 }
 
-SEC("struct_ops/dctcp_state")
+SEC("struct_ops")
 void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state)
 {
 	if (new_state == TCP_CA_Recovery &&
@@ -164,7 +171,7 @@ void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state)
 	 */
 }
 
-static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state)
+static void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -179,9 +186,8 @@ static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state)
  * S:	0 <- last pkt was non-CE
  *	1 <- last pkt was CE
  */
-static __always_inline
-void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
-			  __u32 *prior_rcv_nxt, __u32 *ce_state)
+static void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
+				 __u32 *prior_rcv_nxt, __u32 *ce_state)
 {
 	__u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0;
 
@@ -201,10 +207,10 @@ void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
 	dctcp_ece_ack_cwr(sk, new_ce_state);
 }
 
-SEC("struct_ops/dctcp_cwnd_event")
+SEC("struct_ops")
 void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev)
 {
-	struct dctcp *ca = inet_csk_ca(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
 
 	switch (ev) {
 	case CA_EVENT_ECN_IS_CE:
@@ -220,17 +226,17 @@ void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev)
 	}
 }
 
-SEC("struct_ops/dctcp_cwnd_undo")
+SEC("struct_ops")
 __u32 BPF_PROG(dctcp_cwnd_undo, struct sock *sk)
 {
-	const struct dctcp *ca = inet_csk_ca(sk);
+	const struct bpf_dctcp *ca = inet_csk_ca(sk);
 
 	return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd);
 }
 
 extern void tcp_reno_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym;
 
-SEC("struct_ops/dctcp_reno_cong_avoid")
+SEC("struct_ops")
 void BPF_PROG(dctcp_cong_avoid, struct sock *sk, __u32 ack, __u32 acked)
 {
 	tcp_reno_cong_avoid(sk, ack, acked);