From nobody Wed Sep 17 19:55:52 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4BC05223DFA for ; Sun, 13 Jul 2025 09:44:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752399847; cv=none; b=Xy5AG/R5bACVxKDDiswdqCr9IkAMgEezRLYuH4FQIbmACxNAAD4Jgl61my3Kr5Fv4LQN8PZgzxnQRfWu402G28HctunNRbeZeyEOaImZr3S4XB+Oflo1qv5pjZMc99wfcDtuJARitjU/4GVRl9B2lYnxJ+GS71pPdU60bjQ17Ug= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752399847; c=relaxed/simple; bh=qmn/hzWixyaXkO58tn8KmxTlHtv0NRCl4mPohlgGytE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k+A356nnqurBYGgi/0Daf8fE+ZP2p0w7u/fjD96Pl5aQXvWhvgqtxQyLh//1dzBAoeO1VhVEMwMEPaM+sdOpF4uJa1ena80nrL1aA+sehfpO7irqysW51EyukFHWsr4B2Cj4DZmtoSvYo7Pvh3GcOCl5wpWRoImz9OJeIwcnpOc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G4WfeEvI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G4WfeEvI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D283BC4CEF1; Sun, 13 Jul 2025 09:44:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752399846; bh=qmn/hzWixyaXkO58tn8KmxTlHtv0NRCl4mPohlgGytE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G4WfeEvIZKX1sQ0jeSfJGrxAFrbwLPg7C1u9TGsZOooi4u9mxr9v42griOl3zeGvv QL0n0v/ZfHRYISb3U9HamD2fr9o64Kqs1eSWwAhmMDQ+DmbfKm5MbbtBiV9t+VyiVQ Drf2+RF9TLwUB9mdzjX8YJS0xEIt2oLAscEZl8RbZGtxqR9ZRMEInX3Np4/x+O9wKQ ZxmJUaFxtfSQb/WTEOkG3dzAlchyC56+ef36sxihZx1+Mes7/YAVxFI140L/VM1JyB x1hny5Wjpsa04i20fTA6m/EHqNrWAt+agpTM+taiGmGWjgG7u/98CK9tZVJY9zfepo 31ijk6i6FVTXQ== From: Geliang Tang To: mptcp@lists.linux.dev, hare@kernel.org Cc: Geliang Tang Subject: [PATCH mptcp-next v9 8/9] selftests: mptcp: add splice io mode Date: Sun, 13 Jul 2025 17:43:48 +0800 Message-ID: X-Mailer: git-send-email 2.48.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch adds a new 'splice' io mode for mptcp_connect to test the newly added read_sock() and splice_read() functions of MPTCP. do_splice() efficiently transfers data directly between two file descriptors (infd and outfd) without copying to userspace, using Linux's splice() system call. Usage: ./mptcp_connect.sh -m splice Signed-off-by: Geliang Tang --- .../selftests/net/mptcp/mptcp_connect.c | 63 ++++++++++++++++++- 1 file changed, 62 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/test= ing/selftests/net/mptcp/mptcp_connect.c index ac1349c4b9e5..4c219d620398 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -51,6 +51,7 @@ enum cfg_mode { CFG_MODE_POLL, CFG_MODE_MMAP, CFG_MODE_SENDFILE, + CFG_MODE_SPLICE, }; =20 enum cfg_peek { @@ -123,7 +124,7 @@ static void die_usage(void) fprintf(stderr, "\t-j -- add additional sleep at connection start and= tear down " "-- for MPJ tests\n"); fprintf(stderr, "\t-l -- listens mode, accepts incoming connection\n"= ); - fprintf(stderr, "\t-m [poll|mmap|sendfile] -- use poll(default)/mmap+writ= e/sendfile\n"); + fprintf(stderr, "\t-m [poll|mmap|sendfile|splice] -- use poll(default)/mm= ap+write/sendfile/splice\n"); fprintf(stderr, "\t-M mark -- set socket packet mark\n"); fprintf(stderr, "\t-o option -- test sockopt