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From: Geliang Tang <geliang.tang@suse.com>
To: mptcp@lists.linux.dev
Cc: Geliang Tang <geliang.tang@suse.com>
Subject: [PATCH mptcp-next v3 04/15] mptcp: add last_snd in sched_data
Date: Tue, 30 May 2023 21:17:24 +0800	[thread overview]
Message-ID: <5257d7ff291cd9a336c976967643b0041050d66c.1685452619.git.geliang.tang@suse.com> (raw)
In-Reply-To: <cover.1685452619.git.geliang.tang@suse.com>

This patch moves the member last_snd from struct mptcp_sock to
struct mptcp_sched_data to make it accessible to bpf schedulers.

With this change, msk->last_snd should be replaced by
msk->sched_data->last_snd.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 include/net/mptcp.h  |  1 +
 net/mptcp/protocol.c | 14 +++++++-------
 net/mptcp/protocol.h |  1 -
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/net/mptcp.h b/include/net/mptcp.h
index 4bba29c99172..d52aeb8b4485 100644
--- a/include/net/mptcp.h
+++ b/include/net/mptcp.h
@@ -100,6 +100,7 @@ struct mptcp_out_options {
 #define MPTCP_SUBFLOWS_MAX	8
 
 struct mptcp_sched_data {
+	struct sock	*last_snd;
 	bool		reinject;
 	struct mptcp_subflow_context *contexts[MPTCP_SUBFLOWS_MAX];
 };
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index a2560813bfb5..05a98ae09226 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1619,7 +1619,7 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
 					continue;
 				}
 				do_check_data_fin = true;
-				msk->last_snd = ssk;
+				msk->sched_data->last_snd = ssk;
 			}
 		}
 	}
@@ -1660,7 +1660,7 @@ static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk, bool
 			if (ret <= 0)
 				break;
 			copied += ret;
-			msk->last_snd = ssk;
+			msk->sched_data->last_snd = ssk;
 			continue;
 		}
 
@@ -1673,7 +1673,7 @@ static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk, bool
 			if (ret <= 0)
 				keep_pushing = false;
 			copied += ret;
-			msk->last_snd = ssk;
+			msk->sched_data->last_snd = ssk;
 		}
 
 		mptcp_for_each_subflow(msk, subflow) {
@@ -2457,8 +2457,8 @@ static void __mptcp_close_ssk(struct sock *sk, struct sock *ssk,
 		WRITE_ONCE(msk->first, NULL);
 
 out:
-	if (ssk == msk->last_snd)
-		msk->last_snd = NULL;
+	if (msk->sched_data && ssk == msk->sched_data->last_snd)
+		msk->sched_data->last_snd = NULL;
 
 	if (need_push)
 		__mptcp_push_pending(sk, 0);
@@ -2640,7 +2640,7 @@ static void __mptcp_retrans(struct sock *sk)
 
 			release_sock(ssk);
 
-			msk->last_snd = ssk;
+			msk->sched_data->last_snd = ssk;
 		}
 	}
 	dfrag->already_sent = max(dfrag->already_sent, len);
@@ -3143,7 +3143,7 @@ static int mptcp_disconnect(struct sock *sk, int flags)
 	 * subflow
 	 */
 	mptcp_destroy_common(msk, MPTCP_CF_FASTCLOSE);
-	msk->last_snd = NULL;
+	msk->sched_data->last_snd = NULL;
 	WRITE_ONCE(msk->flags, 0);
 	msk->cb_flags = 0;
 	msk->push_pending = 0;
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 88469590eb32..ce3be8eb68d6 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -266,7 +266,6 @@ struct mptcp_sock {
 	atomic64_t	rcv_wnd_sent;
 	u64		rcv_data_fin_seq;
 	int		rmem_fwd_alloc;
-	struct sock	*last_snd;
 	int		snd_burst;
 	int		old_wspace;
 	u64		recovery_snd_nxt;	/* in recovery mode accept up to this seq;
-- 
2.35.3


  parent reply	other threads:[~2023-05-30 13:18 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-30 13:17 [PATCH mptcp-next v3 00/15] save sched_data at mptcp_sock Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 01/15] Squash to "mptcp: add struct mptcp_sched_ops" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 02/15] Squash to "mptcp: add sched in mptcp_sock" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 03/15] Squash to "mptcp: add scheduler wrappers" Geliang Tang
2023-05-30 13:17 ` Geliang Tang [this message]
2023-05-30 13:17 ` [PATCH mptcp-next v3 05/15] mptcp: add snd_burst in sched_data Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 06/15] mptcp: register default scheduler Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 07/15] mptcp: rename __mptcp_set_timeout for bpf_burst Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 08/15] mptcp: add two wrappers " Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 09/15] mptcp: add three helpers " Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 10/15] Squash to "bpf: Add bpf_mptcp_sched_ops" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 11/15] Squash to "bpf: Add bpf_mptcp_sched_kfunc_set" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 12/15] Squash to "selftests/bpf: Add mptcp sched structs" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 13/15] Squash to "selftests/bpf: Add bpf_rr scheduler" Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 14/15] selftests/bpf: Add bpf_burst scheduler Geliang Tang
2023-05-30 13:17 ` [PATCH mptcp-next v3 15/15] selftests/bpf: Add bpf_burst test Geliang Tang
2023-05-30 13:50   ` selftests/bpf: Add bpf_burst test: Build Failure MPTCP CI
2023-05-30 14:46   ` selftests/bpf: Add bpf_burst test: Tests Results MPTCP CI

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