From patchwork Thu May 9 17:50:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin KaFai Lau X-Patchwork-Id: 13660018 X-Patchwork-Delegate: bpf@iogearbox.net Received: from out-176.mta0.migadu.com (out-176.mta0.migadu.com [91.218.175.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD51777112 for ; Thu, 9 May 2024 17:50:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715277057; cv=none; b=ZGmGXquvvHcaKNiEtpgk4R59DR3GVre0FwBUQ3ogxMgnpvc2Z41NJjr0froyr8b5dGZ+HHCUF4Ooo3chzJQ3GQJoeCvFiIrn4vJMWLuk/X9jcDwbFh8SMdTcmTYJrMaYHbFFJhCBx1BBwHQ4WX4T+4JBngo85ooJgI3SsGKZsyc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715277057; c=relaxed/simple; bh=hvYyYqe+Ych6AXDyAvx6I5hNv7w26/XvGPpzWWe2Sx4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JzJXREx32KJzdIYDvotQP4aGJerWLYrB/Z1377XkFRlQcpltJUW/eeAoMcyZWr3uRTFuhwbADRWsdG0poc1JxwwSQzxb/gPQz4yc8pA0TYSVOQXPqmg3jAOuUwbw6uyFsSZC/tcFx9dNq8flZdH8U/dawqAAGsdPjwRqB58K4MI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=drG+RXZx; arc=none smtp.client-ip=91.218.175.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="drG+RXZx" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1715277054; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VKCizx0oK69gTCqplrfDavwX7Cw0yWCqwN0s+HjDikw=; b=drG+RXZxemJc8OB4UUi/eZ/OegazLhxujpAHptdPLojomnf0gFJslvf69oc3iY+L2NJQMr dIPWs+bp16EYsKFoF+Yh82TNoTJXvtJ+rlHNexy/5pAkWUxCRVHYEEZJcHM9jZLspHvmmF jfJzC99qROT195QCNA7GYcQ0lx7drSI= From: Martin KaFai Lau To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , kernel-team@meta.com Subject: [PATCH bpf-next 10/10] selftests/bpf: Retire bpf_tcp_helpers.h Date: Thu, 9 May 2024 10:50:26 -0700 Message-ID: <20240509175026.3423614-11-martin.lau@linux.dev> In-Reply-To: <20240509175026.3423614-1-martin.lau@linux.dev> References: <20240509175026.3423614-1-martin.lau@linux.dev> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Patchwork-Delegate: bpf@iogearbox.net From: Martin KaFai Lau The previous patches have consolidated the tests to use bpf_tracing_net.h (i.e. vmlinux.h) instead of bpf_tcp_helpers.h. This patch can finally retire the bpf_tcp_helpers.h from the repository. Signed-off-by: Martin KaFai Lau --- tools/testing/selftests/bpf/bpf_tcp_helpers.h | 241 ------------------ 1 file changed, 241 deletions(-) delete mode 100644 tools/testing/selftests/bpf/bpf_tcp_helpers.h diff --git a/tools/testing/selftests/bpf/bpf_tcp_helpers.h b/tools/testing/selftests/bpf/bpf_tcp_helpers.h deleted file mode 100644 index 82a7c9de95f9..000000000000 --- a/tools/testing/selftests/bpf/bpf_tcp_helpers.h +++ /dev/null @@ -1,241 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __BPF_TCP_HELPERS_H -#define __BPF_TCP_HELPERS_H - -#include -#include -#include -#include -#include - -#define BPF_STRUCT_OPS(name, args...) \ -SEC("struct_ops/"#name) \ -BPF_PROG(name, args) - -#ifndef SOL_TCP -#define SOL_TCP 6 -#endif - -#ifndef TCP_CA_NAME_MAX -#define TCP_CA_NAME_MAX 16 -#endif - -#define tcp_jiffies32 ((__u32)bpf_jiffies64()) - -struct sock_common { - unsigned char skc_state; - __u16 skc_num; -} __attribute__((preserve_access_index)); - -enum sk_pacing { - SK_PACING_NONE = 0, - SK_PACING_NEEDED = 1, - SK_PACING_FQ = 2, -}; - -struct sock { - struct sock_common __sk_common; -#define sk_state __sk_common.skc_state - unsigned long sk_pacing_rate; - __u32 sk_pacing_status; /* see enum sk_pacing */ -} __attribute__((preserve_access_index)); - -struct inet_sock { - struct sock sk; -} __attribute__((preserve_access_index)); - -struct inet_connection_sock { - struct inet_sock icsk_inet; - __u8 icsk_ca_state:6, - icsk_ca_setsockopt:1, - icsk_ca_dst_locked:1; - struct { - __u8 pending; - } icsk_ack; - __u64 icsk_ca_priv[104 / sizeof(__u64)]; -} __attribute__((preserve_access_index)); - -struct request_sock { - struct sock_common __req_common; -} __attribute__((preserve_access_index)); - -struct tcp_sock { - struct inet_connection_sock inet_conn; - - __u32 rcv_nxt; - __u32 snd_nxt; - __u32 snd_una; - __u32 window_clamp; - __u8 ecn_flags; - __u32 delivered; - __u32 delivered_ce; - __u32 snd_cwnd; - __u32 snd_cwnd_cnt; - __u32 snd_cwnd_clamp; - __u32 snd_ssthresh; - __u8 syn_data:1, /* SYN includes data */ - syn_fastopen:1, /* SYN includes Fast Open option */ - syn_fastopen_exp:1,/* SYN includes Fast Open exp. option */ - syn_fastopen_ch:1, /* Active TFO re-enabling probe */ - syn_data_acked:1,/* data in SYN is acked by SYN-ACK */ - save_syn:1, /* Save headers of SYN packet */ - is_cwnd_limited:1,/* forward progress limited by snd_cwnd? */ - syn_smc:1; /* SYN includes SMC */ - __u32 max_packets_out; - __u32 lsndtime; - __u32 prior_cwnd; - __u64 tcp_mstamp; /* most recent packet received/sent */ - bool is_mptcp; -} __attribute__((preserve_access_index)); - -static __always_inline struct inet_connection_sock *inet_csk(const struct sock *sk) -{ - return (struct inet_connection_sock *)sk; -} - -static __always_inline void *inet_csk_ca(const struct sock *sk) -{ - return (void *)inet_csk(sk)->icsk_ca_priv; -} - -static __always_inline struct tcp_sock *tcp_sk(const struct sock *sk) -{ - return (struct tcp_sock *)sk; -} - -static __always_inline bool before(__u32 seq1, __u32 seq2) -{ - return (__s32)(seq1-seq2) < 0; -} -#define after(seq2, seq1) before(seq1, seq2) - -#define TCP_ECN_OK 1 -#define TCP_ECN_QUEUE_CWR 2 -#define TCP_ECN_DEMAND_CWR 4 -#define TCP_ECN_SEEN 8 - -enum inet_csk_ack_state_t { - ICSK_ACK_SCHED = 1, - ICSK_ACK_TIMER = 2, - ICSK_ACK_PUSHED = 4, - ICSK_ACK_PUSHED2 = 8, - ICSK_ACK_NOW = 16 /* Send the next ACK immediately (once) */ -}; - -enum tcp_ca_event { - CA_EVENT_TX_START = 0, - CA_EVENT_CWND_RESTART = 1, - CA_EVENT_COMPLETE_CWR = 2, - CA_EVENT_LOSS = 3, - CA_EVENT_ECN_NO_CE = 4, - CA_EVENT_ECN_IS_CE = 5, -}; - -struct ack_sample { - __u32 pkts_acked; - __s32 rtt_us; - __u32 in_flight; -} __attribute__((preserve_access_index)); - -struct rate_sample { - __u64 prior_mstamp; /* starting timestamp for interval */ - __u32 prior_delivered; /* tp->delivered at "prior_mstamp" */ - __s32 delivered; /* number of packets delivered over interval */ - long interval_us; /* time for tp->delivered to incr "delivered" */ - __u32 snd_interval_us; /* snd interval for delivered packets */ - __u32 rcv_interval_us; /* rcv interval for delivered packets */ - long rtt_us; /* RTT of last (S)ACKed packet (or -1) */ - int losses; /* number of packets marked lost upon ACK */ - __u32 acked_sacked; /* number of packets newly (S)ACKed upon ACK */ - __u32 prior_in_flight; /* in flight before this ACK */ - bool is_app_limited; /* is sample from packet with bubble in pipe? */ - bool is_retrans; /* is sample from retransmission? */ - bool is_ack_delayed; /* is this (likely) a delayed ACK? */ -} __attribute__((preserve_access_index)); - -#define TCP_CA_NAME_MAX 16 -#define TCP_CONG_NEEDS_ECN 0x2 - -struct tcp_congestion_ops { - char name[TCP_CA_NAME_MAX]; - __u32 flags; - - /* initialize private data (optional) */ - void (*init)(struct sock *sk); - /* cleanup private data (optional) */ - void (*release)(struct sock *sk); - - /* return slow start threshold (required) */ - __u32 (*ssthresh)(struct sock *sk); - /* do new cwnd calculation (required) */ - void (*cong_avoid)(struct sock *sk, __u32 ack, __u32 acked); - /* call before changing ca_state (optional) */ - void (*set_state)(struct sock *sk, __u8 new_state); - /* call when cwnd event occurs (optional) */ - void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev); - /* call when ack arrives (optional) */ - void (*in_ack_event)(struct sock *sk, __u32 flags); - /* new value of cwnd after loss (required) */ - __u32 (*undo_cwnd)(struct sock *sk); - /* hook for packet ack accounting (optional) */ - void (*pkts_acked)(struct sock *sk, const struct ack_sample *sample); - /* override sysctl_tcp_min_tso_segs */ - __u32 (*min_tso_segs)(struct sock *sk); - /* returns the multiplier used in tcp_sndbuf_expand (optional) */ - __u32 (*sndbuf_expand)(struct sock *sk); - /* call when packets are delivered to update cwnd and pacing rate, - * after all the ca_state processing. (optional) - */ - void (*cong_control)(struct sock *sk, const struct rate_sample *rs); - void *owner; -}; - -#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 __always_inline bool tcp_in_slow_start(const struct tcp_sock *tp) -{ - return tp->snd_cwnd < tp->snd_ssthresh; -} - -static __always_inline bool tcp_is_cwnd_limited(const struct sock *sk) -{ - const struct tcp_sock *tp = tcp_sk(sk); - - /* If in slow start, ensure cwnd grows to twice what was ACKed. */ - if (tcp_in_slow_start(tp)) - return tp->snd_cwnd < 2 * tp->max_packets_out; - - return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited); -} - -static __always_inline bool tcp_cc_eq(const char *a, const char *b) -{ - int i; - - for (i = 0; i < TCP_CA_NAME_MAX; i++) { - if (a[i] != b[i]) - return false; - if (!a[i]) - break; - } - - return true; -} - -extern __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) __ksym; -extern void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) __ksym; - -struct mptcp_sock { - struct inet_connection_sock sk; - - __u32 token; - struct sock *first; - char ca_name[TCP_CA_NAME_MAX]; -} __attribute__((preserve_access_index)); - -#endif