From patchwork Mon Jun 12 08:21:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 13275838 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 900CEC7EE25 for ; Mon, 12 Jun 2023 08:53:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234110AbjFLIxt (ORCPT ); Mon, 12 Jun 2023 04:53:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233773AbjFLIxL (ORCPT ); Mon, 12 Jun 2023 04:53:11 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBAAA30D2 for ; Mon, 12 Jun 2023 01:52:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686559947; x=1718095947; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mtVaF8FBbmCvY3tO9Dra+v8+HXVgN+/DBdtdtcFzQMY=; b=GEsIGDLOb9bxtBJwPeJAIrWZIJqmk0e/1lbIL7mBW1R7mDGuIAd0iBzX QvYvgTENYcsRVVPJO9tALsymE2P0pYjNPF87BavilXukQ+trL7Xd58rAu L+3ABq0zDLDu1naUD57kLIFXzdfB+ydy8LdHU/JlvThkwpvXnM2ItZk32 yRCqoQ7+BaQ/HWW068FURhG3Eucw0RAZ+hS058kfyGk/6cIgiw/8+3cyW pvbGKiVb2Pcpqo1qHD5+zhYjHW9INtmvDzlB+tlMw7yQQWVsJCeaow3zr +kYKyAs7rhIYI7Zv4/IUswEMrylR74NY1pxN2BMX8RjKIOnfFL3qaPKUs Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10738"; a="347627322" X-IronPort-AV: E=Sophos;i="6.00,236,1681196400"; d="scan'208";a="347627322" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jun 2023 01:21:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10738"; a="744247785" X-IronPort-AV: E=Sophos;i="6.00,236,1681196400"; d="scan'208";a="744247785" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 12 Jun 2023 01:21:43 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 26882BE1; Mon, 12 Jun 2023 11:21:46 +0300 (EEST) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Gil Fine , Yehezkel Bernat , Michael Jamet , Lukas Wunner , Andreas Noever , Mika Westerberg Subject: [PATCH v2 20/20] thunderbolt: Add test case for 3 DisplayPort tunnels Date: Mon, 12 Jun 2023 11:21:45 +0300 Message-Id: <20230612082145.62218-21-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230612082145.62218-1-mika.westerberg@linux.intel.com> References: <20230612082145.62218-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Intel Barlow Ridge Thunderbolt controller has 3 DP IN adapters. This allows 3 simultaneus DisplayPort tunnels through either one or two USB4 downstream ports (in any possible configuration). Add test case for this. Signed-off-by: Mika Westerberg --- drivers/thunderbolt/test.c | 83 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c index 24c06e7354cd..9475c6698c7d 100644 --- a/drivers/thunderbolt/test.c +++ b/drivers/thunderbolt/test.c @@ -170,6 +170,23 @@ static struct tb_switch *alloc_host_usb4(struct kunit *test) return sw; } +static struct tb_switch *alloc_host_br(struct kunit *test) +{ + struct tb_switch *sw; + + sw = alloc_host_usb4(test); + if (!sw) + return NULL; + + sw->ports[10].config.type = TB_TYPE_DP_HDMI_IN; + sw->ports[10].config.max_in_hop_id = 9; + sw->ports[10].config.max_out_hop_id = 9; + sw->ports[10].cap_adap = -1; + sw->ports[10].disabled = false; + + return sw; +} + static struct tb_switch *alloc_dev_default(struct kunit *test, struct tb_switch *parent, u64 route, bool bonded) @@ -1583,6 +1600,71 @@ static void tb_test_tunnel_dp_max_length(struct kunit *test) tb_tunnel_free(tunnel); } +static void tb_test_tunnel_3dp(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2, *dev3, *dev4, *dev5; + struct tb_port *in1, *in2, *in3, *out1, *out2, *out3; + struct tb_tunnel *tunnel1, *tunnel2, *tunnel3; + + /* + * Create 3 DP tunnels from Host to Devices #2, #5 and #4. + * + * [Host] + * 3 | + * 1 | + * [Device #1] + * 3 / | 5 \ 7 + * 1 / | \ 1 + * [Device #2] | [Device #4] + * | 1 + * [Device #3] + * | 5 + * | 1 + * [Device #5] + */ + host = alloc_host_br(test); + dev1 = alloc_dev_default(test, host, 0x3, true); + dev2 = alloc_dev_default(test, dev1, 0x303, true); + dev3 = alloc_dev_default(test, dev1, 0x503, true); + dev4 = alloc_dev_default(test, dev1, 0x703, true); + dev5 = alloc_dev_default(test, dev3, 0x50503, true); + + in1 = &host->ports[5]; + in2 = &host->ports[6]; + in3 = &host->ports[10]; + + out1 = &dev2->ports[13]; + out2 = &dev5->ports[13]; + out3 = &dev4->ports[14]; + + tunnel1 = tb_tunnel_alloc_dp(NULL, in1, out1, 1, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel1 != NULL); + KUNIT_EXPECT_EQ(test, tunnel1->type, TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->src_port, in1); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->dst_port, out1); + KUNIT_ASSERT_EQ(test, tunnel1->npaths, 3); + KUNIT_ASSERT_EQ(test, tunnel1->paths[0]->path_length, 3); + + tunnel2 = tb_tunnel_alloc_dp(NULL, in2, out2, 1, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel2 != NULL); + KUNIT_EXPECT_EQ(test, tunnel2->type, TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->src_port, in2); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->dst_port, out2); + KUNIT_ASSERT_EQ(test, tunnel2->npaths, 3); + KUNIT_ASSERT_EQ(test, tunnel2->paths[0]->path_length, 4); + + tunnel3 = tb_tunnel_alloc_dp(NULL, in3, out3, 1, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel3 != NULL); + KUNIT_EXPECT_EQ(test, tunnel3->type, TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel3->src_port, in3); + KUNIT_EXPECT_PTR_EQ(test, tunnel3->dst_port, out3); + KUNIT_ASSERT_EQ(test, tunnel3->npaths, 3); + KUNIT_ASSERT_EQ(test, tunnel3->paths[0]->path_length, 3); + + tb_tunnel_free(tunnel2); + tb_tunnel_free(tunnel1); +} + static void tb_test_tunnel_usb3(struct kunit *test) { struct tb_switch *host, *dev1, *dev2; @@ -2790,6 +2872,7 @@ static struct kunit_case tb_test_cases[] = { KUNIT_CASE(tb_test_tunnel_dp_chain), KUNIT_CASE(tb_test_tunnel_dp_tree), KUNIT_CASE(tb_test_tunnel_dp_max_length), + KUNIT_CASE(tb_test_tunnel_3dp), KUNIT_CASE(tb_test_tunnel_port_on_path), KUNIT_CASE(tb_test_tunnel_usb3), KUNIT_CASE(tb_test_tunnel_dma),