From patchwork Tue Apr 11 19:21:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 9676003 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 27C5B60231 for ; Tue, 11 Apr 2017 19:21:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 182302856C for ; Tue, 11 Apr 2017 19:21:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0C52B285A1; Tue, 11 Apr 2017 19:21:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B5F952856C for ; Tue, 11 Apr 2017 19:21:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753374AbdDKTVL (ORCPT ); Tue, 11 Apr 2017 15:21:11 -0400 Received: from mail-lf0-f68.google.com ([209.85.215.68]:35489 "EHLO mail-lf0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753353AbdDKTVJ (ORCPT ); Tue, 11 Apr 2017 15:21:09 -0400 Received: by mail-lf0-f68.google.com with SMTP id i3so800899lfh.2; Tue, 11 Apr 2017 12:21:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=QIy5RZOVcnAflAniY0QBlgfMDCjLdhHZ/FU2Q1nIAzM=; b=F9EpJ/pDEGKxRPM2lTvRe93mmyQErfvHmk1gBL9zqYFis5JnA54psN5X9wHTEMa7hE sduc13jomO/Ymzbb42IZwDNdW2mx9hUnO2/M89U0ZA8Sllg9jyb78zwN7T+dg6M/lLpW 2CBFR+yrqGRt1bCpuL35gQPm0Cth8icK9ZXRqe/z10FM02HOJjvb37ahUAuMEBALdE6J QEi/6wCFPSrBRkeca2Ocy86wbg1yiiAhKtpkAt//4HQL9ocqDMDENqfLrhbM3PU+6u7J wL8BW+ClrrJRtHoqGtrCgogPXda0k2e6RZispOUR9gab9KkpEWOn+zx7rk1NrsEETYi2 kR+A== 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=QIy5RZOVcnAflAniY0QBlgfMDCjLdhHZ/FU2Q1nIAzM=; b=fkyfv7ub4ct3YMghGxAkg0B+OCUUI5R9PwkNvvouIknw84yuyhMosngTCgV5MT3eG9 s/s+fsZ1MaNLbh+/ZSMEZOjCx5Vw6Jyd3RqqKBKiLE48NOjCXMVg4szh9RsTF2fpXAFT C6xYP/5y50tflW90QQhAacBCH+qkFOHLQazZG/kVTavA7BhDIS9g++woY37SCxsgoIjM SL2eTtfutlBemZK41Mp1jh26RGkt6A/KDYeVK3dhOwViySh9TVecFCLAIrSOEx/UN58B vM3V11EyCbqKajf9z+17ldT6+CRFPJPL0FsjxYSiwAjzoRdRjR7uaeb3ycTbJY0Kt65r pukQ== X-Gm-Message-State: AFeK/H0ibXzqnUUNHNlh8JsWVd/w+vEy5I3IRC9oKiVPCiQMsIXMwMBEIlb8UwpZmINmmg== X-Received: by 10.25.34.87 with SMTP id i84mr19970987lfi.140.1491938468030; Tue, 11 Apr 2017 12:21:08 -0700 (PDT) Received: from vudentzs-t460s.pp.htv.fi (89-27-7-11.bb.dnainternet.fi. [89.27.7.11]) by smtp.gmail.com with ESMTPSA id c1sm3604962lfc.55.2017.04.11.12.21.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 11 Apr 2017 12:21:07 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Cc: patrik.flykt@linux.intel.com, aar@pengutronix.de, jukka.rissanen@linux.intel.com, linux-wpan@vger.kernel.org Subject: [PATCH 3/6] Bluetooth: 6lowpan: Use netif APIs to flow control Date: Tue, 11 Apr 2017 22:21:00 +0300 Message-Id: <20170411192103.3209-3-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170411192103.3209-1-luiz.dentz@gmail.com> References: <20170411192103.3209-1-luiz.dentz@gmail.com> Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Luiz Augusto von Dentz Rely on netif_wake_queue and netif_stop_queue to flow control when transmit resources are unavailable. Signed-off-by: Luiz Augusto von Dentz Acked-by: Jukka Rissanen --- net/bluetooth/6lowpan.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 22bd936..dc7fda3 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -867,12 +867,28 @@ static struct sk_buff *chan_alloc_skb_cb(struct l2cap_chan *chan, static void chan_suspend_cb(struct l2cap_chan *chan) { + struct lowpan_btle_dev *dev; + BT_DBG("chan %p suspend", chan); + + dev = lookup_dev(chan->conn); + if (!dev || !dev->netdev) + return; + + netif_stop_queue(dev->netdev); } static void chan_resume_cb(struct l2cap_chan *chan) { + struct lowpan_btle_dev *dev; + BT_DBG("chan %p resume", chan); + + dev = lookup_dev(chan->conn); + if (!dev || !dev->netdev) + return; + + netif_wake_queue(dev->netdev); } static long chan_get_sndtimeo_cb(struct l2cap_chan *chan)