From patchwork Mon Sep 21 04:23:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Howard Chung X-Patchwork-Id: 252673 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=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, 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, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 1AD85C43463 for ; Mon, 21 Sep 2020 04:23:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BEC5420888 for ; Mon, 21 Sep 2020 04:23:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="NrHx8f/+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726419AbgIUEXh (ORCPT ); Mon, 21 Sep 2020 00:23:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726011AbgIUEXd (ORCPT ); Mon, 21 Sep 2020 00:23:33 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A734DC0613CF for ; Sun, 20 Sep 2020 21:23:32 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id q2so11959774ybo.5 for ; Sun, 20 Sep 2020 21:23:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=epV5Kf267asYL9EhY6AdeHNontynwjSLiF3gUn0z2B0=; b=NrHx8f/+pxqzILxbiJcQa7zh9LcPo1bS/hZTFXyHHyuFKJAfummZGCmO7UjcYW7Bto oHJLUrOYH1a7HSTXqwKXU9FC5QxUAmPvT3Qb/TmMQk6AZSF2VGXAqP2cM3Qq0kbCLiw0 cOkhpOmk0BAYqZ4FMN7Vl2NS1Mc+KoLZuQxCU/RFmmN1E9NfghqIjT/0ryHWFkIILjXA eDCRz4+v/A2KJ7hRgz7b6JDh8Ayv3JkM2V4+ipR3XxXW+0wA5xEn0qxFohle890HJjof 4kksU0m3A2OD5gtFthYOQKE9hNaK7FFDEchwk8CgprAXx7DkSV3vKICyyEWFYKVaV8Q9 YZNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=epV5Kf267asYL9EhY6AdeHNontynwjSLiF3gUn0z2B0=; b=uO5znCZ9haXHGPnq+tnzTmziN1E+2CPz/jIG5gnp9XR+70F3pF6ywHKD3l2CAKo1PP Jt44dLmeXRk8VVAYsBal3A1Tbd2o/KMgCtRl77PPmeUdkFkvhU9WIWEe/07Hvs0BhuUm LPQtZ9ZL5tzM5aDZblvcGF1gx8UUUPOVSzAPjX/GKNal5UlhlKU8on1CZbyJlYJCbfvR PKCXiYHR31wVf72c/7/4oe0eVbfiCWcym/ycvbyjqv5v8XW6ShqPOHEyGpnijo5EBg2Y TNbjv6s8X1uIbjlkbGq7VR+KnkDtqaSRF0ISPXSoxFOwT0p4T3QDbXZwAuINDxs6EIeu 0TZw== X-Gm-Message-State: AOAM532j00JxJ6OVtlkvc55rXbnGfISCja8dUu8IrsRWSLkOoa87P8BW 7igwDOXEbLoqd26UrIXSYg6Z07NZWE6gk8Tk0QYbxE+MomokGTVIq7yKZJ/MLKbYMdhm4CyLY3f wmYSiZvUIYWidY2QsQEPIMtqrKv+FSfgT+FeG2MdD416s7KwvfwR5jl9mErG4xkc2BKvtCmIvb9 rilmFoaH2KqDY= X-Google-Smtp-Source: ABdhPJyyCNP9bHpy8nwOUFwlrx6vXZ/QBNe3dSUwlLKUeoogRqulu5Xd8SJnXa/GaEVHDNG3YZwzCLtP4OeTaMsvBQ== Sender: "howardchung via sendgmr" X-Received: from howardchung-p920.tpe.corp.google.com ([2401:fa00:1:10:f693:9fff:fef4:4e45]) (user=howardchung job=sendgmr) by 2002:a25:e83:: with SMTP id 125mr65805362ybo.376.1600662211746; Sun, 20 Sep 2020 21:23:31 -0700 (PDT) Date: Mon, 21 Sep 2020 12:23:08 +0800 In-Reply-To: <20200921122216.v4.1.Ib75f58e90c477f9b82c5598f00c59f0e95a1a352@changeid> Message-Id: <20200921122216.v4.4.I756c1fecc03bcc0cd94400b4992cd7e743f4b3e2@changeid> Mime-Version: 1.0 References: <20200921122216.v4.1.Ib75f58e90c477f9b82c5598f00c59f0e95a1a352@changeid> X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v4 4/4] Bluetooth: Add toggle to switch off interleave scan From: Howard Chung To: linux-bluetooth@vger.kernel.org, marcel@holtmann.org, luiz.dentz@gmail.com Cc: alainm@chromium.org, mcchou@chromium.org, mmandlik@chromium.orgi, Howard Chung , "David S. Miller" , Jakub Kicinski , Johan Hedberg , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org This patch add a configurable parameter to switch off the interleave scan feature. Signed-off-by: Howard Chung Reviewed-by: Alain Michaud --- Changes in v4: - Set EnableAdvMonInterleaveScan default to Disable - Fix 80 chars limit in mgmt_config.c include/net/bluetooth/hci_core.h | 1 + net/bluetooth/hci_core.c | 1 + net/bluetooth/hci_request.c | 3 ++- net/bluetooth/mgmt_config.c | 5 +++++ 4 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 179350f869fdb..c3253f1cac0c2 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -363,6 +363,7 @@ struct hci_dev { __u32 clock; __u16 advmon_allowlist_duration; __u16 advmon_no_filter_duration; + __u16 enable_advmon_interleave_scan; __u16 devid_source; __u16 devid_vendor; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 6c8850149265a..d5769ae682893 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3595,6 +3595,7 @@ struct hci_dev *hci_alloc_dev(void) /* The default values will be chosen in the future */ hdev->advmon_allowlist_duration = 300; hdev->advmon_no_filter_duration = 500; + hdev->enable_advmon_interleave_scan = 0x0000; /* Default to disable */ hdev->sniff_max_interval = 800; hdev->sniff_min_interval = 80; diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 1fcf6736811e4..bb38e1dead68f 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -500,7 +500,8 @@ static void __hci_update_background_scan(struct hci_request *req) if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) hci_req_add_le_scan_disable(req, false); - if (!update_adv_monitor_scan_state(hdev)) { + if (!hdev->enable_advmon_interleave_scan || + !update_adv_monitor_scan_state(hdev)) { hci_req_add_le_passive_scan(req); bt_dev_dbg(hdev, "%s starting background scanning", hdev->name); diff --git a/net/bluetooth/mgmt_config.c b/net/bluetooth/mgmt_config.c index 2d3ad288c78ac..34585ab4680b5 100644 --- a/net/bluetooth/mgmt_config.c +++ b/net/bluetooth/mgmt_config.c @@ -69,6 +69,7 @@ int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data, def_le_autoconnect_timeout), HDEV_PARAM_U16(0x001d, advmon_allowlist_duration), HDEV_PARAM_U16(0x001e, advmon_no_filter_duration), + HDEV_PARAM_U16(0x001f, enable_advmon_interleave_scan), }; struct mgmt_rp_read_def_system_config *rp = (void *)params; @@ -142,6 +143,7 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data, case 0x001b: case 0x001d: case 0x001e: + case 0x001f: if (len != sizeof(u16)) { bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d", len, sizeof(u16), type); @@ -261,6 +263,9 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data, case 0x0001e: hdev->advmon_no_filter_duration = TLV_GET_LE16(buffer); break; + case 0x0001f: + hdev->enable_advmon_interleave_scan = TLV_GET_LE16(buffer); + break; default: bt_dev_warn(hdev, "unsupported parameter %u", type); break;