From patchwork Fri Oct 2 11:51:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Schoenebeck X-Patchwork-Id: 303847 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=-9.8 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 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 C7746C47423 for ; Fri, 2 Oct 2020 12:55:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2FE57206DC for ; Fri, 2 Oct 2020 12:55:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=crudebyte.com header.i=@crudebyte.com header.b="Yk9SClGa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2FE57206DC Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=crudebyte.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58344 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kOKbN-0003Ty-4J for qemu-devel@archiver.kernel.org; Fri, 02 Oct 2020 08:55:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37290) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kOKWL-0007eM-Mo for qemu-devel@nongnu.org; Fri, 02 Oct 2020 08:50:45 -0400 Received: from lizzy.crudebyte.com ([91.194.90.13]:38645) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kOKWI-00086b-0k for qemu-devel@nongnu.org; Fri, 02 Oct 2020 08:50:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=crudebyte.com; s=lizzy; h=Cc:To:Subject:Date:From:References:In-Reply-To: Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Content-ID: Content-Description; bh=MOuYzYgoUjX0F+dL6MaCElse45kBDIj3nDYLLbxQJyQ=; b=Yk9SC lGa8aRAqMSwtn2atRBqRcgktwQvkoRW13SuQFOKspJm3LOia7DSQOW1G9D/r8PjAJQ4Sf7KVl+Vxi e1osGX6Sec8YI7sUyNltCY/zLAbh+QAm4MnLiwXna6ZBKViroUc36QvV6btkNLqWT3oWOkyBsE0fZ CngCHSEsnYgJyQ1RIMv2ab9GWkVpaNfOlndhM2YF8t/WbGv8OanVutcyCZ0YBc6Gd7hMjUj2S0R4r Zrhxm/NDj/vp47o643jsYaRm/zmdIuDcBaPVIW0ZeTVYGbYrbTvr10aqz2hpr7qRE/neFPlyk/c9c DU66/+YODj9reWJ1P8qj/QobCUS/Q==; Message-Id: In-Reply-To: References: From: Christian Schoenebeck Date: Fri, 2 Oct 2020 13:51:54 +0200 Subject: [PATCH v2 03/11] libqos/qgraph: add qos_dump_graph() To: qemu-devel@nongnu.org Cc: Thomas Huth , Laurent Vivier , Paolo Bonzini , Emanuele Giuseppe Esposito , Greg Kurz Received-SPF: none client-ip=91.194.90.13; envelope-from=e8cf7c5bbbfe34f5ba211c7133861f081db82285@lizzy.crudebyte.com; helo=lizzy.crudebyte.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/02 08:18:24 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This new function is purely for debugging purposes. It prints the current qos graph to stdout and allows to identify problems in the created qos graph e.g. when writing new qos tests. Coloured output is used to mark available nodes in green colour, whereas unavailable nodes are marked in red colour. Signed-off-by: Christian Schoenebeck --- tests/qtest/libqos/qgraph.c | 54 +++++++++++++++++++++++++++++++++++++ tests/qtest/libqos/qgraph.h | 20 ++++++++++++++ 2 files changed, 74 insertions(+) diff --git a/tests/qtest/libqos/qgraph.c b/tests/qtest/libqos/qgraph.c index 61faf6b27d..e70635750e 100644 --- a/tests/qtest/libqos/qgraph.c +++ b/tests/qtest/libqos/qgraph.c @@ -805,3 +805,57 @@ void qos_delete_cmd_line(const char *name) node->command_line = NULL; } } + +#define RED(txt) ( \ + "\033[0;91m" txt \ + "\033[0m" \ +) + +#define GREEN(txt) ( \ + "\033[0;92m" txt \ + "\033[0m" \ +) + +void qos_dump_graph(void) +{ + GList *keys; + GList *l; + QOSGraphEdgeList *list; + QOSGraphEdge *e, *next; + QOSGraphNode *dest_node, *node; + + printf("ALL QGRAPH EDGES: {\n"); + keys = g_hash_table_get_keys(edge_table); + for (l = keys; l != NULL; l = l->next) { + const gchar *key = l->data; + printf("\t src='%s'\n", key); + list = get_edgelist(key); + QSLIST_FOREACH_SAFE(e, list, edge_list, next) { + dest_node = g_hash_table_lookup(node_table, e->dest); + printf("\t\t|-> dest='%s' type=%d (node=%p)", + e->dest, e->type, dest_node); + if (!dest_node) { + printf(RED(" <------- ERROR !")); + } + printf("\n"); + } + } + g_list_free(keys); + printf("}\n"); + + printf("ALL QGRAPH NODES: {\n"); + keys = g_hash_table_get_keys(node_table); + for (l = keys; l != NULL; l = l->next) { + const gchar *key = l->data; + node = g_hash_table_lookup(node_table, key); + printf("\t name='%s' ", key); + if (node->qemu_name) { + printf("qemu_name='%s' ", node->qemu_name); + } + printf("type=%d cmd_line='%s' [%s]\n", + node->type, node->command_line, + node->available ? GREEN("available") : RED("UNAVAILBLE")); + } + g_list_free(keys); + printf("}\n"); +} diff --git a/tests/qtest/libqos/qgraph.h b/tests/qtest/libqos/qgraph.h index f472949f68..07a32535f1 100644 --- a/tests/qtest/libqos/qgraph.h +++ b/tests/qtest/libqos/qgraph.h @@ -586,5 +586,25 @@ QOSGraphObject *qos_machine_new(QOSGraphNode *node, QTestState *qts); QOSGraphObject *qos_driver_new(QOSGraphNode *node, QOSGraphObject *parent, QGuestAllocator *alloc, void *arg); +/** + * Just for debugging purpose: prints all currently existing nodes and + * edges to stdout. + * + * All qtests add themselves to the overall qos graph by calling qgraph + * functions that add device nodes and edges between the individual graph + * nodes for tests. As the actual graph is assmbled at runtime by the qos + * subsystem, it is sometimes not obvious how the overall graph looks like. + * E.g. when writing new tests it may happen that those new tests are simply + * ignored by the qtest framework. + * + * This function allows to identify problems in the created qgraph. Keep in + * mind: only tests with a path down from the actual test case node (leaf) up + * to the graph's root node are actually executed by the qtest framework. And + * the qtest framework uses QMP to automatically check which QEMU drivers are + * actually currently available, and accordingly qos marks certain pathes as + * 'unavailable' in such cases (e.g. when QEMU was compiled without support for + * a certain feature). + */ +void qos_dump_graph(void); #endif