From nobody Thu Apr 2 12:14:53 2026 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 D48342609DC for ; Mon, 30 Mar 2026 09:45:50 +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=1774863950; cv=none; b=LZrMziDzNKKKWtnn32upwF5KGRB8n3Mhe2tM8BjNeAKGCdEAwx4ABaIvi/30yl+BzKyJao/iUYNr6pg5ODnVc61AiBix+wvIdTWE9tFIFhdRI+xRiQ9LtjH2v2nPfvDDes3Ab60lJE7QpL6nZT/VpWEkXnbwWYPxE+YczFf8vkw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774863950; c=relaxed/simple; bh=oTuHnBcqhcQab8zjFJAQBmyp/J1OIPvsUcVP3MqUafA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TzhDLUAz/xfC118yz5wfVxUfu9wx1qToABp3UOXBpVZjLTgWI0/7sCbJ63bdg106dBLUi/1KC/JklL1OLAUprbnsUtfv0JVxiPzfW0LkINSRBQM9RqDhR2N9LtwjuXFnHt/D5Sb5K1PTUZZ3m3mGEzSiYW+UF3nEeCXACz+oZSM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cR10CiNT; 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="cR10CiNT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 591E7C2BC9E; Mon, 30 Mar 2026 09:45:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774863950; bh=oTuHnBcqhcQab8zjFJAQBmyp/J1OIPvsUcVP3MqUafA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cR10CiNTzlny0WhwgIXzF0id99MWyq8Ec99xZae2Oy1pU8OcXjNt4br3YxQuKukkL 4yyjcq19Yql8KPzEyifECsHHeBq9Q112wpJdOii9nGWrV6FrTEV7uebcfbeEJXVSbl BD/GGhk0YIJmUHRnL7g0NIY6GlEM9D+Rxdfxp/apWVEHyn4+9dlMdowGhVBEgA5V6r G8CdGwQ/uu846asq4r23end1UsyDX8EfdC+kL7EndcJX/n4D8OJEK0paxWp2sNh3Du 5JFKQBwNXRbRtK564H7TcqQtJVcSNekpQSjyt55GxpsV047bk1P0Ad4hH+yaTYnPqy RTfy0O1Tnr7Pg== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang , Hannes Reinecke , zhenwei pi , Hui Zhu , Gang Yan Subject: [RFC mptcp-next v6 6/7] nvme-tcp: register host mptcp transport Date: Mon, 30 Mar 2026 17:43:31 +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 defines a new nvmf_transport_ops named nvme_mptcp_transport, which is almost the same as nvme_tcp_transport except .type and .allowed_opts. MPTCP currently does not support TLS. The four TLS-related options (NVMF_OPT_TLS, NVMF_OPT_KEYRING, NVMF_OPT_TLS_KEY, and NVMF_OPT_CONCAT) have been removed from allowed_opts. They will be added back once MPTCP TLS is supported. It is registered in nvme_tcp_init_module() and unregistered in nvme_tcp_cleanup_module(). v2: - use 'trtype' instead of '--mptcp' (Hannes) v3: - check mptcp protocol from opts->transport instead of passing a parameter (Hannes). v4: - check CONFIG_MPTCP. Cc: Hannes Reinecke Co-developed-by: zhenwei pi Signed-off-by: zhenwei pi Co-developed-by: Hui Zhu Signed-off-by: Hui Zhu Co-developed-by: Gang Yan Signed-off-by: Gang Yan Signed-off-by: Geliang Tang --- drivers/nvme/host/tcp.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index cf80f9354471..9231310d4a9b 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -3063,6 +3063,18 @@ static struct nvmf_transport_ops nvme_tcp_transport = =3D { .create_ctrl =3D nvme_tcp_create_ctrl, }; =20 +static struct nvmf_transport_ops nvme_mptcp_transport =3D { + .name =3D "mptcp", + .module =3D THIS_MODULE, + .required_opts =3D NVMF_OPT_TRADDR, + .allowed_opts =3D NVMF_OPT_TRSVCID | NVMF_OPT_RECONNECT_DELAY | + NVMF_OPT_HOST_TRADDR | NVMF_OPT_CTRL_LOSS_TMO | + NVMF_OPT_HDR_DIGEST | NVMF_OPT_DATA_DIGEST | + NVMF_OPT_NR_WRITE_QUEUES | NVMF_OPT_NR_POLL_QUEUES | + NVMF_OPT_TOS | NVMF_OPT_HOST_IFACE, + .create_ctrl =3D nvme_tcp_create_ctrl, +}; + static int __init nvme_tcp_init_module(void) { unsigned int wq_flags =3D WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_SYSFS; @@ -3088,6 +3100,7 @@ static int __init nvme_tcp_init_module(void) atomic_set(&nvme_tcp_cpu_queues[cpu], 0); =20 nvmf_register_transport(&nvme_tcp_transport); + nvmf_register_transport(&nvme_mptcp_transport); return 0; } =20 @@ -3095,6 +3108,7 @@ static void __exit nvme_tcp_cleanup_module(void) { struct nvme_tcp_ctrl *ctrl; =20 + nvmf_unregister_transport(&nvme_mptcp_transport); nvmf_unregister_transport(&nvme_tcp_transport); =20 mutex_lock(&nvme_tcp_ctrl_mutex); --=20 2.51.0