From nobody Sun Dec 14 11:43:25 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 464BD28A701 for ; Sat, 6 Dec 2025 12:34:41 +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=1765024482; cv=none; b=cz77rF6M0roP1NIkIHuZA18w1GkO6OYo6KJexc8JZxrAH78DClBnGRifVZCOZ+gMq42Kzkc7QmFikZURno31JWnJBIZCYb4Bzcqth3VU1hcGAvgaAFP8pVgdrCz3Q+gc1gn8juFjuExOvILUx8fkC7gdS5JuYyinhnEl6egdGD8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765024482; c=relaxed/simple; bh=UhNb8M7jyLgttYDJBfZhnurW8DR5TP4B9xx1EdXwR/s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=j9isnWAojhAZFGYbIwhYRhn9B/LZ4B+YpVCbQd197bbEwd3Zz6GpQ9lCQ1u13LT/PEEZ5Fuh0RS4bemLjaJIh/SjVSsUEIXILZvvlOJLoTL0yDPH9yNFHLN8lzV8zobgw4yESwz/hU0FGnG3YWwIeR65XdMyKPRL58cZ9BUhrM4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u0eHfhSz; 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="u0eHfhSz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2951AC116C6; Sat, 6 Dec 2025 12:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765024481; bh=UhNb8M7jyLgttYDJBfZhnurW8DR5TP4B9xx1EdXwR/s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u0eHfhSzipSMbAa2K6BFkbvHVACbV36+Vblh4LV2Bkqoo+dJJLa0rd3fAvqieU3If rebWi4Vz8LWnxsALWurO1dsjr81+KEZID+at0i95neUc4dStv6YfkVyE0NYnuHTStv u2SftltGL6yLh7o4vT6QavffJpG+ARUCsV0QyuvTuRzXvMtVir55UcRMD7a5bJ1tL/ TOPkWKlm6a/oGwTtZ8nlFkVE/0trZXdKiufGxkR0nJJnngWtIzxZRl6nbcGxc1MKLo Db5gla8HchrP1MnfuOkBnO4AV2g57FJpJOpuOUaY7bW9VDxjuvlu1aANIbGSyWqjG0 0hzdXayy66TzA== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v15 5/6] selftests: mptcp: add splice io mode Date: Sat, 6 Dec 2025 20:33:55 +0800 Message-ID: X-Mailer: git-send-email 2.51.0 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 404a77bf366a..b82df82e0594 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