From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A6F9C2D0A3 for ; Fri, 6 Nov 2020 17:27:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5196217A0 for ; Fri, 6 Nov 2020 17:27:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="zl24+w2P" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727610AbgKFR1O (ORCPT ); Fri, 6 Nov 2020 12:27:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44080 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726075AbgKFR1L (ORCPT ); Fri, 6 Nov 2020 12:27:11 -0500 Received: from mail-wr1-x444.google.com (mail-wr1-x444.google.com [IPv6:2a00:1450:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0527C0613CF for ; Fri, 6 Nov 2020 09:27:10 -0800 (PST) Received: by mail-wr1-x444.google.com with SMTP id w1so2130467wrm.4 for ; Fri, 06 Nov 2020 09:27:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=D/092xNhzoeqWVzgOt31RyKE4UUHqVbbhKniatrDYRo=; b=zl24+w2P6aoxshLsh+1QU1x0CzQVDdjoH9oEaZ/ehcxJLK3hgvzHf61Swag23oCQ4k D9zvWGX2dMvIpQk1UiK28WQth1hiCyysURF0v7ooOu5IUCy03BGPmvpDrfECte1lW0JQ iplLJzx83969nmuJjVwz9aOlAeIkDVuGGR1wNP+6sBuBRzqJTYNoSLAU/FA9VcMwY0F3 k8lfy+5g3yXe9Wm7pRl0c9nQm81u4u99pIPAlMbCGMBxpRWjqJVQ5IsK0kc3xOPU0vLY B2oxihUKnLGlKUad+E/ZiWX6BX14MDpxna7M2J0T0ayzCFPxURODf2BKMS/2vdIY6eSD Vy+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=D/092xNhzoeqWVzgOt31RyKE4UUHqVbbhKniatrDYRo=; b=EHh2fyQ+KqFEHN9AsTZHS1iJR9Plf3FTWo1yq2mAq7L5qd+PpJ+gkPicpFjBDp6ndL dpKbrkA/Q4ctI+lTn2uzxqBRDqIDfhbWjdGWSYt2ZIvru6rI33fjsGcYSewEv4seHFwC UDJRPluqhiYkDU47G4AU2VvOuIWUYuO+ZXw+m/ZyYTb3QDOlIup9jqsto8313Uvl+Oh2 6I9/JE3XfbXoaIXNgUSqUO6aebnMYRsVn17cDnah54K9D5kzqqENEknLdjabMnQpwbdj nUHFY3Di96OVzrfE1M7OGGJ43PMO8e4rYB97fznp9rTcdZjcJ3ASwAOByUJvFadUr8Ld 3UYQ== X-Gm-Message-State: AOAM5305rDVwGBkupRaZClHWimEakJo4e6X2raA413bk3ZxpPFbdVi57 tkg1pIa2n8otB21O+zCF4pSDSJTSI88AjI/QcNM= X-Google-Smtp-Source: ABdhPJybSZfNQq/peuFFiZn7JwhQWfiYkoV9Kvsc+iVZgTt19vTbPq8ueDldvi0ON9fg5VrwiHtePQ== X-Received: by 2002:adf:e388:: with SMTP id e8mr3829229wrm.65.1604683629693; Fri, 06 Nov 2020 09:27:09 -0800 (PST) Received: from localhost.localdomain ([88.122.66.28]) by smtp.gmail.com with ESMTPSA id z191sm3183266wme.30.2020.11.06.09.27.08 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 06 Nov 2020 09:27:09 -0800 (PST) From: Loic Poulain To: davem@davemloft.net, kuba@kernel.org Cc: bjorn.andersson@linaro.org, manivannan.sadhasivam@linaro.org, cjhuang@codeaurora.org, netdev@vger.kernel.org, Loic Poulain Subject: [PATCH v2 3/5] net: qrtr: Allow non-immediate node routing Date: Fri, 6 Nov 2020 18:33:28 +0100 Message-Id: <1604684010-24090-4-git-send-email-loic.poulain@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1604684010-24090-1-git-send-email-loic.poulain@linaro.org> References: <1604684010-24090-1-git-send-email-loic.poulain@linaro.org> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In order to reach non-immediate remote node services that are accessed through an intermediate node, the route to the remote node needs to be saved. E.g for a [node1 <=> node2 <=> node3] network - node2 forwards node3 service to node1 - node1 must save node2 as route for reaching node3 Signed-off-by: Loic Poulain Reviewed-by: Bjorn Andersson --- net/qrtr/qrtr.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index e09154b..1d12408 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -400,12 +400,13 @@ static void qrtr_node_assign(struct qrtr_node *node, unsigned int nid) { unsigned long flags; - if (node->nid != QRTR_EP_NID_AUTO || nid == QRTR_EP_NID_AUTO) + if (nid == QRTR_EP_NID_AUTO) return; spin_lock_irqsave(&qrtr_nodes_lock, flags); radix_tree_insert(&qrtr_nodes, nid, node); - node->nid = nid; + if (node->nid == QRTR_EP_NID_AUTO) + node->nid = nid; spin_unlock_irqrestore(&qrtr_nodes_lock, flags); } @@ -493,6 +494,13 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len) qrtr_node_assign(node, cb->src_node); + if (cb->type == QRTR_TYPE_NEW_SERVER) { + /* Remote node endpoint can bridge other distant nodes */ + const struct qrtr_ctrl_pkt *pkt = data + hdrlen; + + qrtr_node_assign(node, le32_to_cpu(pkt->server.node)); + } + if (cb->type == QRTR_TYPE_RESUME_TX) { qrtr_tx_resume(node, skb); } else { -- 2.7.4