From patchwork Thu Oct 8 18:34:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Schoenebeck X-Patchwork-Id: 11824449 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 13BEA175A for ; Thu, 8 Oct 2020 19:19:54 +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 9DA0621789 for ; Thu, 8 Oct 2020 19:19:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=crudebyte.com header.i=@crudebyte.com header.b="ZK5V7mMI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9DA0621789 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:40416 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kQbSC-0006ff-Ig for patchwork-qemu-devel@patchwork.kernel.org; Thu, 08 Oct 2020 15:19:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49840) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQbLp-0005Be-Ad for qemu-devel@nongnu.org; Thu, 08 Oct 2020 15:13:17 -0400 Received: from lizzy.crudebyte.com ([91.194.90.13]:42263) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kQbLn-0005FY-EN for qemu-devel@nongnu.org; Thu, 08 Oct 2020 15:13:17 -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=baW8d6Af0E+xPV7T/Dn1dnU1Plbu8QKi0pyhr5ugh2A=; b=ZK5V7 mMIGDAYDQ2OB4JfplYB/JF6O/obuHHMoGXiiIvMrJVX2YW99OdkjjUTSmGk3L31vBK+eaD9DQcZoX FxBn3NEkozA67bHBEHUCGnO/ZZin7LTT+bcf8ZU95arF7LH0Bwo2kAnp2kNP45K7Znbif1yxr4CJN yArmdR5TjUXouizTm8wLPfpjvy2X63u6tP5iyNxZVu/7HB1iQZJjeZO9+AU1+2tQa8M8IxYBhhd5c uH6ckupvYeBPmHmLfSuwvXRcTuoED59SQE2p8KJOCvKmThUxlGpoOzJLU89+bt0AUHEr5XgnHmGX5 r58mkkEfKOcFb0ipiKWqdz/mYn92A==; Message-Id: In-Reply-To: References: From: Christian Schoenebeck Date: Thu, 8 Oct 2020 20:34:56 +0200 Subject: [PATCH v4 02/12] libqos/qgraph: add qos_node_create_driver_named() To: qemu-devel@nongnu.org Cc: =?unknown-8bit?q?Thomas_Huth_=3Cthuth=40redhat=2Ecom=3E=2C?= =?unknown-8bit?q?_Laurent_Vivier_=3Clvivier=40redhat=2Ecom=3E=2C?= =?unknown-8bit?q?_Paolo_Bonzini_=3Cpbonzini=40redhat=2Ecom=3E=2C?= =?unknown-8bit?q?_Emanuele_Giuseppe_Esposito_=3Ce=2Eemanuelegiuseppe=40gmail?= =?unknown-8bit?q?=2Ecom=3E=2C?= =?unknown-8bit?q?_Greg_Kurz_=3Cgroug=40kaod=2Eorg=3E=2C?= =?unknown-8bit?b?ICJEYW5pZWwgUC4gQmVycmFuZ8OpIiA8YmVycmFuZ2VAcmVkaGF0LmNv?= =?unknown-8bit?b?bT4=?= Received-SPF: none client-ip=91.194.90.13; envelope-from=c4de33c9cd056a674dc4b5119e7a9632d3e6a937@lizzy.crudebyte.com; helo=lizzy.crudebyte.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/08 15:12:00 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" So far the qos subsystem of the qtest framework had the limitation that only one instance of the same official QEMU (QMP) driver name could be created for qtests. That's because a) the created qos node names must always be unique, b) the node name must match the official QEMU driver name being instantiated and c) all nodes are in a global space shared by all tests. This patch removes this limitation by introducing a new function qos_node_create_driver_named() which allows test case authors to specify a node name being different from the actual associated QEMU driver name. It fills the new 'qemu_name' field of QOSGraphNode for that purpose. Adjust build_driver_cmd_line() and qos_graph_node_set_availability() to correctly deal with either accessing node name vs. node's qemu_name correctly. Signed-off-by: Christian Schoenebeck --- tests/qtest/libqos/qgraph.c | 53 ++++++++++++++++++++++++++++++++++--- tests/qtest/libqos/qgraph.h | 16 +++++++++++ 2 files changed, 66 insertions(+), 3 deletions(-) diff --git a/tests/qtest/libqos/qgraph.c b/tests/qtest/libqos/qgraph.c index e42f3eaafa..61faf6b27d 100644 --- a/tests/qtest/libqos/qgraph.c +++ b/tests/qtest/libqos/qgraph.c @@ -287,7 +287,8 @@ static void build_machine_cmd_line(QOSGraphNode *node, const char *args) */ static void build_driver_cmd_line(QOSGraphNode *node) { - node->command_line = g_strconcat(" -device ", node->name, NULL); + const char *name = node->qemu_name ?: node->name; + node->command_line = g_strconcat(" -device ", name, NULL); } /* qos_print_cb(): callback prints all path found by the DFS algorithm. */ @@ -632,6 +633,15 @@ void qos_node_create_driver(const char *name, QOSCreateDriverFunc function) node->u.driver.constructor = function; } +void qos_node_create_driver_named(const char *name, const char *qemu_name, + QOSCreateDriverFunc function) +{ + QOSGraphNode *node = create_node(name, QNODE_DRIVER); + node->qemu_name = g_strdup(qemu_name); + build_driver_cmd_line(node); + node->u.driver.constructor = function; +} + void qos_node_contains(const char *container, const char *contained, QOSGraphEdgeOptions *opts, ...) { @@ -664,7 +674,7 @@ void qos_node_consumes(const char *consumer, const char *interface, add_edge(interface, consumer, QEDGE_CONSUMED_BY, opts); } -void qos_graph_node_set_availability(const char *node, bool av) +static void qos_graph_node_set_availability_explicit(const char *node, bool av) { QOSGraphEdgeList *elist; QOSGraphNode *n = search_node(node); @@ -679,9 +689,46 @@ void qos_graph_node_set_availability(const char *node, bool av) } QSLIST_FOREACH_SAFE(e, elist, edge_list, next) { if (e->type == QEDGE_CONTAINS || e->type == QEDGE_PRODUCES) { - qos_graph_node_set_availability(e->dest, av); + qos_graph_node_set_availability_explicit(e->dest, av); + } + } +} + +/* + * Behaves as qos_graph_node_set_availability_explicit(), except that the + * former always matches by node name only, whereas this function matches both + * by node name and node's optional 'qemu_name' field. + */ +void qos_graph_node_set_availability(const char *node, bool av) +{ + GList *l; + QOSGraphEdgeList *elist; + QOSGraphEdge *e, *next; + QOSGraphNode *n; + GList *keys = g_hash_table_get_keys(node_table); + + for (l = keys; l != NULL; l = l->next) { + const gchar *key = l->data; + n = g_hash_table_lookup(node_table, key); + /* + * node's 'qemu_name' is set if there is more than one device with + * the same QEMU (QMP) device name + */ + const char *node_name = n->qemu_name ?: n->name; + if (g_strcmp0(node_name, node) == 0) { + n->available = av; + elist = get_edgelist(n->name); + if (elist) { + QSLIST_FOREACH_SAFE(e, elist, edge_list, next) { + if (e->type == QEDGE_CONTAINS || e->type == QEDGE_PRODUCES) + { + qos_graph_node_set_availability_explicit(e->dest, av); + } + } + } } } + g_list_free(keys); } void qos_graph_foreach_test_path(QOSTestCallback fn) diff --git a/tests/qtest/libqos/qgraph.h b/tests/qtest/libqos/qgraph.h index 5f63d352ca..f472949f68 100644 --- a/tests/qtest/libqos/qgraph.h +++ b/tests/qtest/libqos/qgraph.h @@ -452,6 +452,22 @@ void qos_node_create_machine_args(const char *name, */ void qos_node_create_driver(const char *name, QOSCreateDriverFunc function); +/** + * Behaves as qos_node_create_driver() with the extension of allowing to + * specify a different node name vs. associated QEMU device name. + * + * Use this function instead of qos_node_create_driver() if you need to create + * several instances of the same QEMU device. You are free to choose a custom + * node name, however the chosen node name must always be unique. + * + * @param name: custom, unique name of the node to be created + * @param qemu_name: actual (official) QEMU driver name the node shall be + * associated with + * @param function: driver constructor + */ +void qos_node_create_driver_named(const char *name, const char *qemu_name, + QOSCreateDriverFunc function); + /** * qos_node_contains(): creates one or more edges of type QEDGE_CONTAINS * and adds them to the edge list mapped to @container in the