From nobody Sat Oct 11 08:09:58 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 0344D27A900 for ; Sat, 27 Sep 2025 12:31:47 +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=1758976308; cv=none; b=Kz+yc7lf1+fQf3TA6lpMyeR42xTMmEv9KE6/mmSeCWjE4946Smvx8VL2E/EurNDIhsK5kBZ7zGdfg7tDGC2PMDmZNcqQ6ftmXVrrNQPrnITvMubEYr5l5LgdWzE2r6NYr1DJbu1+ZP+nrCFjI8Hdq4By7moITCKlDJzEBPTpx4k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758976308; c=relaxed/simple; bh=2yQXe35CBtR4uoYT5CbBOnaes42b897+rj8e59xHPGg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=om9SlUnuXKdNMQd65HkF9MvPFw+RB9G54qyg0GKqHhhPb42ejw8F5bjeMRAzkCJbC5snZCy5ABs7vwZDxth93rIP9NPyxfof9qrKwex4W+dqwI1w+OjIRizWwMTdxBu1LIQAZL4viTLEXdL2Uc/ebfWMv1BlMiBZtvnrLI6fMy4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DkyOK7eW; 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="DkyOK7eW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FD78C4CEF5; Sat, 27 Sep 2025 12:31:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758976307; bh=2yQXe35CBtR4uoYT5CbBOnaes42b897+rj8e59xHPGg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DkyOK7eWStj82UMNztMFluLjGk9ANf36qPuz9WKpOeJPDBrPsPRj0bOingV1S3+t/ eB305JagVlFpQFFrakX5f0/6pHPNNKnu+5UyUdtEp6VBRLpc4yduwA+YZ9tPf4LsS9 OWEqwkmUkrwXaFp4dnwikPOysAUIjH7TptKGL2nPg6gHBrt4d0MJYTsYPCli11iwwy vPjjfjXvpNABn2p3Y77VBCRBONDHXhbYJ3LTqYUNpikGLseVL+6DVb62RXLD+rMhB8 10/PZEF3Ev1/0v0Cn/dFIBYVzEgPZ2Dcjz4lmuiBXHqfakNn1u9T0uf0eHJC2NiIr2 2f3kSAZfyA7Vw== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v12 7/8] selftests: mptcp: add splice io mode Date: Sat, 27 Sep 2025 20:30:24 +0800 Message-ID: X-Mailer: git-send-email 2.43.0 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 b148cadb96d0..52c6696a13a5 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