From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 2FFE03890EE; Tue, 18 Aug 2026 06:03:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787033035; cv=none; b=kTbrTS+LDSGD8jhYJeHyBfBUUxVRNLTf4mIZ6Poc/Cceix5FqjWzANmcVO5UyAQkfkLgQqcz2h67brocZB9yiEzg8WCc0LLMqdeBprfrlKgPHpOA4CWyxQysaylvzbmzlLOM0n0B9o3PkFsOlrfOLwqaho8KtFpCXxh8wYsGxjw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787033035; c=relaxed/simple; bh=kKPJGW/oiaUn0VowSlJHbCgeZO9HPFHZc7oXkGBj39w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uNKG9ilZ1jEsOB68xrJDW3Kp/xe2jey9jB+1w0HQKoHHkbfiN/jrZF4qgFxCsQY9SdC1rcbCT0M+weMmIgc8N5oqnlM2z/Zds+8ZZdYcw6TsCfO83Sz3Cw5mO7IwSXG3N2/jm3hpcmeGgPh1qmnuu+auH4rUozP2Ohtlb4frsMU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=A2UdzNx5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="A2UdzNx5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 56A441F000E9; Tue, 18 Aug 2026 06:03:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787033033; bh=Nis9dfnj0IQkbN06JcjcoUd3EWxyn7iXPcVuP3vmsVY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=A2UdzNx5HptTFp1gQu4gHG08W2f7E9uDmm+H84rYpZ/MMKbb035eG6R2U3tweQxiz bYwDEhkzx7I6kqFz+0t3tH2Xs74YWxY+uz00woRJt4BQTEtcfhzEfrncajoy6IN4/E 1YxfoCTxEQVL0CDJeDaX/GRBHZL/xcpZK3RHLhkFuALkNJchkNObRyl6Ld0qj/Ip/A 9tKkD2jh+sLGuWieQCxKqoZW2mbsOXDHEhvAFMPbD9zf4Y3m7efbMH1Bhma2GmlmI2 4IH618bfievO8blR167r2NuPqm9yfl30vTAb7nA/F3YUjnARjMGOhjsURM7/ysvvB8 IfiT8d1iQc6lg== From: Geliang Tang To: Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , David Ahern , Ido Schimmel , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Hannes Reinecke , Stanislav Fomichev Cc: Geliang Tang , linux-nvme@lists.infradead.org, netdev@vger.kernel.org, mptcp@lists.linux.dev Subject: [PATCH v4 3/4] nvmet-tcp: support IPv6 traffic class Date: Tue, 18 Aug 2026 14:03:02 +0800 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Geliang Tang Currently, nvmet-tcp only applies the received IPv4 TOS value when setting up a queue socket, but does not handle the IPv6 traffic class. Extend the queue socket setup to handle AF_INET6 sockets. Obtain the traffic class from the IPv6 socket's rcv_flowinfo and apply it through IPV6_TCLASS using do_sock_setsockopt(). Signed-off-by: Geliang Tang --- drivers/nvme/target/tcp.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 38b0c446ae89..ed413aa5601c 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1737,6 +1737,22 @@ static int nvmet_tcp_sock_set_tos(struct sock *sk) return 0; } +static int nvmet_tcp_sock_set_tclass(struct sock *sk) +{ +#if IS_ENABLED(CONFIG_IPV6) + if (sk->sk_family == AF_INET6) { + int tclass = ip6_tclass(inet6_sk(sk)->rcv_flowinfo); + + if (tclass > 0) + return do_sock_setsockopt(sk->sk_socket, false, + SOL_IPV6, IPV6_TCLASS, + KERNEL_SOCKPTR(&tclass), + sizeof(tclass)); + } +#endif + return 0; +} + static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) { struct socket *sock = queue->sock; @@ -1772,6 +1788,10 @@ static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) if (ret) return ret; + ret = nvmet_tcp_sock_set_tclass(sock->sk); + if (ret) + return ret; + ret = 0; write_lock_bh(&sock->sk->sk_callback_lock); if (sock->sk->sk_state != TCP_ESTABLISHED) { -- 2.53.0