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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 CF516C33CAD for ; Mon, 13 Jan 2020 13:02:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72F3C2080D for ; Mon, 13 Jan 2020 13:02:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="acBTZXU1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728774AbgAMNCx (ORCPT ); Mon, 13 Jan 2020 08:02:53 -0500 Received: from us03-smtprelay2.synopsys.com ([149.117.87.133]:56766 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726505AbgAMNCx (ORCPT ); Mon, 13 Jan 2020 08:02:53 -0500 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id C5545C05D0; Mon, 13 Jan 2020 13:02:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1578920572; bh=bjsugJXpoh9gzcAjdUQ3cVUezQOFhoojeDQOsagF9zw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=acBTZXU1AEDhKGfH3xSIjJ854J5wmdNoXDmQxDMuWCI8sUbVsC+dQYVa3m90CJsxZ RRIxIxwYiHoJWjntzzK3kQgGJqUeNFi+WsCYO+rg5uKvF2pn5xF5m0HjayL44/HAkH 13YWKcghHtt8isMR+g+0NhpPIsUxjkpZCzbha1VgOUrZLlKXAyH4b0DjJzMuks/JU7 qFJVnlFnvHif9c6lEnQlVn0NCDX9CRAPnwx9aTxpnE+PFvyWaQP5OTm02AzkLUW7M9 tNzBgG3YPMC+PQEagD30xU9jQ3yL1drcRXgZ6b37pVMXcsMZ9S2vJkEGSLqFeNJDPU GmGPKLCPFLtsQ== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 8B15DA007E; Mon, 13 Jan 2020 13:02:50 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 8/8] net: stmmac: selftests: Add a test for TBS feature Date: Mon, 13 Jan 2020 14:02:43 +0100 Message-Id: <1b6c8e386ac74978c18201b9a11f4ed10ecfc89a.1578920367.git.Jose.Abreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add a new test for TBS feature which is used in ETF scheduler. In this test, we send a packet with a launch time specified as now + 500ms and check if the packet was transmitted on that time frame. Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- .../net/ethernet/stmicro/stmmac/stmmac_selftests.c | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c index d50ae59fe3d8..7cc59e66e42a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -50,6 +51,7 @@ struct stmmac_packet_attrs { u8 id; int sarc; u16 queue_mapping; + u64 timestamp; }; static u8 stmmac_test_next_id; @@ -208,6 +210,9 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv, skb->pkt_type = PACKET_HOST; skb->dev = priv->dev; + if (attr->timestamp) + skb->tstamp = ns_to_ktime(attr->timestamp); + return skb; } @@ -1723,6 +1728,70 @@ static int stmmac_test_sph(struct stmmac_priv *priv) return 0; } +static int stmmac_test_tbs(struct stmmac_priv *priv) +{ +#define STMMAC_TBS_LT_OFFSET (500 * 1000 * 1000) /* 500 ms*/ + struct stmmac_packet_attrs attr = { }; + struct tc_etf_qopt_offload qopt; + u64 start_time, curr_time = 0; + unsigned long flags; + int ret, i; + + if (!priv->hwts_tx_en) + return -EOPNOTSUPP; + + /* Find first TBS enabled Queue, if any */ + for (i = 0; i < priv->plat->tx_queues_to_use; i++) + if (priv->tx_queue[i].tbs_avail) + break; + + if (i >= priv->plat->tx_queues_to_use || !priv->tx_queue[i].tbs_avail) + return -EOPNOTSUPP; + + qopt.enable = true; + qopt.queue = i; + + ret = stmmac_tc_setup_etf(priv, priv, &qopt); + if (ret) + return ret; + + spin_lock_irqsave(&priv->ptp_lock, flags); + stmmac_get_systime(priv, priv->ptpaddr, &curr_time); + spin_unlock_irqrestore(&priv->ptp_lock, flags); + + if (!curr_time) { + ret = -EOPNOTSUPP; + goto fail_disable; + } + + start_time = curr_time; + curr_time += STMMAC_TBS_LT_OFFSET; + + attr.dst = priv->dev->dev_addr; + attr.timestamp = curr_time; + attr.timeout = nsecs_to_jiffies(2 * STMMAC_TBS_LT_OFFSET); + attr.queue_mapping = i; + + pr_info("%s: start_time=0x%lld\n", __func__, start_time); + ret = __stmmac_test_loopback(priv, &attr); + if (ret) + goto fail_disable; + + /* Check if expected time has elapsed */ + spin_lock_irqsave(&priv->ptp_lock, flags); + stmmac_get_systime(priv, priv->ptpaddr, &curr_time); + spin_unlock_irqrestore(&priv->ptp_lock, flags); + + pr_info("%s: curr_time=0x%lld\n", __func__, curr_time); + if ((curr_time - start_time) < STMMAC_TBS_LT_OFFSET) + ret = -EINVAL; + +fail_disable: + qopt.enable = false; + stmmac_tc_setup_etf(priv, priv, &qopt); + return ret; +} + #define STMMAC_LOOPBACK_NONE 0 #define STMMAC_LOOPBACK_MAC 1 #define STMMAC_LOOPBACK_PHY 2 @@ -1856,6 +1925,10 @@ static const struct stmmac_test { .name = "Split Header ", .lb = STMMAC_LOOPBACK_PHY, .fn = stmmac_test_sph, + }, { + .name = "TBS (ETF Scheduler) ", + .lb = STMMAC_LOOPBACK_PHY, + .fn = stmmac_test_tbs, }, }; -- 2.7.4