From patchwork Fri Feb 8 10:47:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 10802703 X-Patchwork-Delegate: luca@coelho.fi Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 048F2746 for ; Fri, 8 Feb 2019 10:47:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E833B2D984 for ; Fri, 8 Feb 2019 10:47:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DC20C2DEE9; Fri, 8 Feb 2019 10:47:29 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI 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 76A2B2D984 for ; Fri, 8 Feb 2019 10:47:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727722AbfBHKr2 (ORCPT ); Fri, 8 Feb 2019 05:47:28 -0500 Received: from paleale.coelho.fi ([176.9.41.70]:57004 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727702AbfBHKr1 (ORCPT ); Fri, 8 Feb 2019 05:47:27 -0500 Received: from 91-156-4-241.elisa-laajakaista.fi ([91.156.4.241] helo=redipa.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.91) (envelope-from ) id 1gs3gr-0002jg-DE; Fri, 08 Feb 2019 12:47:25 +0200 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Ilan Peer , Luca Coelho Date: Fri, 8 Feb 2019 12:47:00 +0200 Message-Id: <20190208104712.16210-9-luca@coelho.fi> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190208104712.16210-1-luca@coelho.fi> References: <20190208104712.16210-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 08/20] iwiwifi: mvm: Fix FW scan concurrency support assumptions Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ilan Peer - The FW supports up to 4 concurrent scans, so adjust the definitions accordingly. - Only a single periodic scan is supported, so enforce it in the code. Signed-off-by: Ilan Peer Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/api/scan.h | 6 +++--- drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 9 +++++++-- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h b/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h index 18741889ec30..890a939c463d 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h @@ -8,7 +8,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -31,7 +31,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -434,7 +434,7 @@ struct iwl_periodic_scan_complete { /* The maximum of either of these cannot exceed 8, because we use an * 8-bit mask (see IWL_MVM_SCAN_MASK in mvm.h). */ -#define IWL_MVM_MAX_UMAC_SCANS 8 +#define IWL_MVM_MAX_UMAC_SCANS 4 #define IWL_MVM_MAX_LMAC_SCANS 1 enum scan_config_flags { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c index 853bf679dc26..78694bc38e76 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c @@ -8,7 +8,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -31,7 +31,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -1580,6 +1580,11 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) * scheduled scan before starting a normal scan. */ + /* FW supports only a single periodic scan */ + if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) && + mvm->scan_status & (IWL_MVM_SCAN_SCHED | IWL_MVM_SCAN_NETDETECT)) + return -EBUSY; + if (iwl_mvm_num_scans(mvm) < mvm->max_scans) return 0;