From patchwork Wed Oct 18 17:58:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 13427644 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 3E759154AC for ; Wed, 18 Oct 2023 17:59:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="UQFdREs1" Received: from mail-oi1-x232.google.com (mail-oi1-x232.google.com [IPv6:2607:f8b0:4864:20::232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 487AF198B for ; Wed, 18 Oct 2023 10:58:39 -0700 (PDT) Received: by mail-oi1-x232.google.com with SMTP id 5614622812f47-3b2e22a4004so1075086b6e.3 for ; Wed, 18 Oct 2023 10:58:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1697651916; x=1698256716; darn=vger.kernel.org; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=TTVwyJDBQSvZG7eP55/ie/Mt+fGA/MgRA2SsHG9S6/Q=; b=UQFdREs1FxdH7h1lOXJ3uld6jP8WmjDRsmgY9CUbEaeuPZqAGoZQcVkTIHrwtFk/Us FYhayXDV8S4vOs7jREkkQsMxSo38jAW3bV0bN5uOUXJ9bc43HPHFd5KQ+R7t4s6x2r+4 VydbAzXiY3GX4xjTKF1xowaMGmA+nv7o5hX54= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697651916; x=1698256716; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=TTVwyJDBQSvZG7eP55/ie/Mt+fGA/MgRA2SsHG9S6/Q=; b=DD/nv72MqfRl+ZN9/jyh7+MRfqEQKyo2XQrq9vVbGvyD8JWfdDI1SIavVlduo3l2a8 96Q5Dyrh3wEXNinwu/1yfJi5HaQ8Ny0WcNZsNTp6yKQLf4l4tW/s0z2EYhSTlpaNx/2B G66ZmbTpij2W+5j027MW0rEt2wiP1dDHNM1DtytYme5FSVH9PpaB9LXUKYbVOzt21M4/ vuE31RNtZKKkxYruvdr+hvaQyogQ3RoSyRsrtNP4uLSYDD5H8lrG4sm33KvcM65bZ86k 4QPRHEi2dlWeoF62WL4yLbfiL6SPeuOqC9oxYvUAzrT4lRp3Ir3oAWzUqpLCnQbMDva0 wUkg== X-Gm-Message-State: AOJu0Yx1xM/dG8HTUWsCHng5txJhspsJpgO+K843fTPl4lZnAYEzS/jg LIP9xZzT8L9+vHgV0nfx/UadR/WzE68nqTz21yxY0gInKsSKAUFd7OncCbOtKRmJ9m8W1UzQNwB Ed6yQo8W3/mb03XFYEDvcwXubwnzWUZIWBZFy6zFkNx9IY01VZlOHStjDsrOVp8O92akwqdjTg7 AjSgSHE1oDow== X-Google-Smtp-Source: AGHT+IHS4jOZY3ngZQELQ2gtIGZD1WYKsXyFAyFSWkktZH44++8H3ceoRuq4ZPkp9ys3Fcof/Drr4g== X-Received: by 2002:a05:6808:1a22:b0:3ab:84f0:b49d with SMTP id bk34-20020a0568081a2200b003ab84f0b49dmr7088609oib.3.1697651916524; Wed, 18 Oct 2023 10:58:36 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id k15-20020a0cfa4f000000b00655d711180dsm133330qvo.17.2023.10.18.10.58.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 10:58:35 -0700 (PDT) From: Florian Fainelli To: netdev@vger.kernel.org Cc: Florian Fainelli , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Broadcom internal kernel review list , linux-kernel@vger.kernel.org (open list:ARM/Mediatek SoC support), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC support) Subject: [PATCH net-next v6 2/2] net: dsa: Rename IFLA_DSA_MASTER to IFLA_DSA_CONDUIT Date: Wed, 18 Oct 2023 10:58:20 -0700 Message-Id: <20231018175820.455893-3-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231018175820.455893-1-florian.fainelli@broadcom.com> References: <20231018175820.455893-1-florian.fainelli@broadcom.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org This preserves the existing IFLA_DSA_MASTER which is part of the uAPI and creates an alias named IFLA_DSA_CONDUIT. Reviewed-by: Andrew Lunn Signed-off-by: Florian Fainelli Reviewed-by: Vladimir Oltean --- Documentation/networking/dsa/configuration.rst | 4 ++-- include/uapi/linux/if_link.h | 4 +++- net/dsa/netlink.c | 10 +++++----- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/Documentation/networking/dsa/configuration.rst b/Documentation/networking/dsa/configuration.rst index e6c9719874b0..6cc4ded3cc23 100644 --- a/Documentation/networking/dsa/configuration.rst +++ b/Documentation/networking/dsa/configuration.rst @@ -393,7 +393,7 @@ description which has an ``ethernet`` property. It is up to the user to configure the system for the switch to use other conduits. DSA uses the ``rtnl_link_ops`` mechanism (with a "dsa" ``kind``) to allow -changing the DSA conduit of a user port. The ``IFLA_DSA_MASTER`` u32 netlink +changing the DSA conduit of a user port. The ``IFLA_DSA_CONDUIT`` u32 netlink attribute contains the ifindex of the conduit device that handles each user device. The DSA conduit must be a valid candidate based on firmware node information, or a LAG interface which contains only slaves which are valid @@ -435,7 +435,7 @@ Using iproute2, the following manipulations are possible: dsa master bond0 Notice that in the case of CPU ports under a LAG, the use of the -``IFLA_DSA_MASTER`` netlink attribute is not strictly needed, but rather, DSA +``IFLA_DSA_CONDUIT`` netlink attribute is not strictly needed, but rather, DSA reacts to the ``IFLA_MASTER`` attribute change of its present conduit (``eth0``) and migrates all user ports to the new upper of ``eth0``, ``bond0``. Similarly, when ``bond0`` is destroyed using ``RTM_DELLINK``, DSA migrates the user ports diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 9f8a3da0f14f..f4191be137a4 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -1394,7 +1394,9 @@ enum { enum { IFLA_DSA_UNSPEC, - IFLA_DSA_MASTER, + IFLA_DSA_CONDUIT, + /* Deprecated, use IFLA_DSA_CONDUIT instead */ + IFLA_DSA_MASTER = IFLA_DSA_CONDUIT, __IFLA_DSA_MAX, }; diff --git a/net/dsa/netlink.c b/net/dsa/netlink.c index f56f90a25b99..1332e56349e5 100644 --- a/net/dsa/netlink.c +++ b/net/dsa/netlink.c @@ -8,7 +8,7 @@ #include "user.h" static const struct nla_policy dsa_policy[IFLA_DSA_MAX + 1] = { - [IFLA_DSA_MASTER] = { .type = NLA_U32 }, + [IFLA_DSA_CONDUIT] = { .type = NLA_U32 }, }; static int dsa_changelink(struct net_device *dev, struct nlattr *tb[], @@ -20,8 +20,8 @@ static int dsa_changelink(struct net_device *dev, struct nlattr *tb[], if (!data) return 0; - if (data[IFLA_DSA_MASTER]) { - u32 ifindex = nla_get_u32(data[IFLA_DSA_MASTER]); + if (data[IFLA_DSA_CONDUIT]) { + u32 ifindex = nla_get_u32(data[IFLA_DSA_CONDUIT]); struct net_device *conduit; conduit = __dev_get_by_index(dev_net(dev), ifindex); @@ -38,7 +38,7 @@ static int dsa_changelink(struct net_device *dev, struct nlattr *tb[], static size_t dsa_get_size(const struct net_device *dev) { - return nla_total_size(sizeof(u32)) + /* IFLA_DSA_MASTER */ + return nla_total_size(sizeof(u32)) + /* IFLA_DSA_CONDUIT */ 0; } @@ -46,7 +46,7 @@ static int dsa_fill_info(struct sk_buff *skb, const struct net_device *dev) { struct net_device *conduit = dsa_user_to_conduit(dev); - if (nla_put_u32(skb, IFLA_DSA_MASTER, conduit->ifindex)) + if (nla_put_u32(skb, IFLA_DSA_CONDUIT, conduit->ifindex)) return -EMSGSIZE; return 0;