From patchwork Thu Oct 8 15:12:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 11823195 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F1CA513B2 for ; Thu, 8 Oct 2020 15:12:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC13120782 for ; Thu, 8 Oct 2020 15:12:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730935AbgJHPM6 (ORCPT ); Thu, 8 Oct 2020 11:12:58 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:54572 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730899AbgJHPM5 (ORCPT ); Thu, 8 Oct 2020 11:12:57 -0400 Received: from 91-156-6-193.elisa-laajakaista.fi ([91.156.6.193] helo=redipa.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1kQXbD-002QxQ-2C; Thu, 08 Oct 2020 18:12:55 +0300 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org Date: Thu, 8 Oct 2020 18:12:40 +0300 Message-Id: X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201008151250.332346-1-luca@coelho.fi> References: <20201008151250.332346-1-luca@coelho.fi> MIME-Version: 1.0 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on farmhouse.coelho.fi X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, TVD_RCVD_IP autolearn=ham autolearn_force=no version=3.4.4 Subject: [PATCH 03/13] iwlwifi: mvm: don't send a CSA command the firmware doesn't know Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Emmanuel Grumbach We introduced a new flow to remove an on-going CSA but we assumed the firwmare understands the CHANNEL_SWITCH_TIME_EVENT_CMD. This is not true for 7265 and down. Don't send this command for those devices, but rather use the older command. Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho --- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 12 ++++++---- .../wireless/intel/iwlwifi/mvm/time-event.c | 22 +++++++++++++++++++ .../wireless/intel/iwlwifi/mvm/time-event.h | 7 ++++-- 3 files changed, 35 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 27b2a68c97f6..688c1125e67b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1409,10 +1409,14 @@ static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); mutex_lock(&mvm->mutex); - WARN_ON(iwl_mvm_send_cmd_pdu(mvm, - WIDE_ID(MAC_CONF_GROUP, - CHANNEL_SWITCH_TIME_EVENT_CMD), - 0, sizeof(cmd), &cmd)); + if (!fw_has_capa(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) + iwl_mvm_remove_csa_period(mvm, vif); + else + WARN_ON(iwl_mvm_send_cmd_pdu(mvm, + WIDE_ID(MAC_CONF_GROUP, + CHANNEL_SWITCH_TIME_EVENT_CMD), + 0, sizeof(cmd), &cmd)); mutex_unlock(&mvm->mutex); WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c index 7ad6c9ab4737..7fce79c1c114 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c @@ -1016,6 +1016,28 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif) iwl_mvm_roc_finished(mvm); } +void iwl_mvm_remove_csa_period(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; + u32 id; + + lockdep_assert_held(&mvm->mutex); + + if (!te_data->running) + return; + + spin_lock_bh(&mvm->time_event_lock); + id = te_data->id; + spin_unlock_bh(&mvm->time_event_lock); + + if (id != TE_CHANNEL_SWITCH_PERIOD) + return; + + iwl_mvm_remove_time_event(mvm, mvmvif, te_data); +} + int iwl_mvm_schedule_csa_period(struct iwl_mvm *mvm, struct ieee80211_vif *vif, u32 duration, u32 apply_time) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h index 3186d7e40567..b6bac776f236 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h @@ -7,7 +7,7 @@ * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * Copyright (C) 2019 Intel Corporation + * Copyright (C) 2019 - 2020 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 @@ -29,7 +29,7 @@ * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * Copyright (C) 2019 Intel Corporation + * Copyright (C) 2019 - 2020 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -216,6 +216,9 @@ void iwl_mvm_te_clear_data(struct iwl_mvm *mvm, void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm); void iwl_mvm_roc_done_wk(struct work_struct *wk); +void iwl_mvm_remove_csa_period(struct iwl_mvm *mvm, + struct ieee80211_vif *vif); + /** * iwl_mvm_schedule_csa_period - request channel switch absence period * @mvm: the mvm component