From patchwork Sun Aug 27 11:05:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Greenman, Gregory" X-Patchwork-Id: 717726 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 549AEC83F16 for ; Sun, 27 Aug 2023 11:06:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229650AbjH0LF7 (ORCPT ); Sun, 27 Aug 2023 07:05:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229770AbjH0LFx (ORCPT ); Sun, 27 Aug 2023 07:05:53 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4BC013E for ; Sun, 27 Aug 2023 04:05:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693134348; x=1724670348; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Fp0l7uP2esL/DI84HWRM/ElcmFm3FFTtvU2wkuBb7Zk=; b=nEvrdMfhOPX7P+FfzYwadGa18utoJyON2a/rqoji265m6WvbUGRFX45b n9z4Q2qomyHqwtsni005f5sEJzQF1HyVGmNWUbpdh4Q1u4fxSRR+onO49 Y2rXR1dtcaY1KykgY3Az9Y9GsiNryJF8kt9tjkJIElpKuL+is9ghgNNCi hPgQYVhCIwCiYIfPOxP4WflAUZwCVIZAtpqoSBUtckEDqMWKSruW0Dtd6 4KxkjrN9oXgv13KsReMsr/BTCaVeHaM9nieN0S+Cb6lvbliv4meeU0jry KEPHH1RC+cmr30tyfEMCCc0fHAbgMVJeqwm6ytSzKfevfBxpqgRVOdDSV Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10814"; a="461301533" X-IronPort-AV: E=Sophos;i="6.02,205,1688454000"; d="scan'208";a="461301533" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2023 04:05:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.01,202,1684825200"; d="scan'208";a="881632945" Received: from ishamsi-mobl1.ger.corp.intel.com (HELO ggreenma-mobl2.intel.com) ([10.251.186.7]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2023 04:05:52 -0700 From: gregory.greenman@intel.com To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Emmanuel Grumbach , Gregory Greenman Subject: [PATCH 01/15] wifi: mac80211: add support for mld in ieee80211_chswitch_done Date: Sun, 27 Aug 2023 14:05:18 +0300 Message-Id: <20230827135854.9f3d846ec9ad.Ic2d14e2285aa1646216a56806cfd4a8d0054437c@changeid> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230827110532.348304-1-gregory.greenman@intel.com> References: <20230827110532.348304-1-gregory.greenman@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Emmanuel Grumbach This allows to finalize the CSA per link. In case the switch didn't work, tear down the MLD connection. Also pass the ieee80211_bss_conf to post_channel_switch to let the driver know which link completed the switch. Signed-off-by: Emmanuel Grumbach Signed-off-by: Gregory Greenman --- .../net/wireless/intel/iwlegacy/4965-mac.c | 2 +- drivers/net/wireless/intel/iwlegacy/common.c | 2 +- .../net/wireless/intel/iwlwifi/dvm/mac80211.c | 6 ++-- .../net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 2 +- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 10 +++--- drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 3 +- .../wireless/intel/iwlwifi/mvm/time-event.c | 2 +- drivers/net/wireless/ti/wlcore/event.c | 2 +- drivers/net/wireless/ti/wlcore/main.c | 6 ++-- include/net/mac80211.h | 8 +++-- net/mac80211/cfg.c | 35 ++++++++++--------- net/mac80211/driver-ops.h | 6 ++-- net/mac80211/mlme.c | 29 ++++++++++----- 13 files changed, 68 insertions(+), 45 deletions(-) diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c index 0a4aa3c678c1..69276266ce6f 100644 --- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c @@ -6122,7 +6122,7 @@ il4965_mac_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, if (il->ops->set_channel_switch(il, ch_switch)) { clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status); il->switch_channel = 0; - ieee80211_chswitch_done(il->vif, false); + ieee80211_chswitch_done(il->vif, false, 0); } out: diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c index 96002121bb8b..054fef680aba 100644 --- a/drivers/net/wireless/intel/iwlegacy/common.c +++ b/drivers/net/wireless/intel/iwlegacy/common.c @@ -4090,7 +4090,7 @@ il_chswitch_done(struct il_priv *il, bool is_success) return; if (test_and_clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status)) - ieee80211_chswitch_done(il->vif, is_success); + ieee80211_chswitch_done(il->vif, is_success, 0); } EXPORT_SYMBOL(il_chswitch_done); diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c index b1939ff275b5..5f3d5b15f727 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c @@ -2,7 +2,7 @@ /****************************************************************************** * * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. - * Copyright (C) 2018 - 2019, 2022 Intel Corporation + * Copyright(C) 2018 - 2019, 2022 - 2023 Intel Corporation * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -1001,7 +1001,7 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, if (priv->lib->set_channel_switch(priv, ch_switch)) { clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); priv->switch_channel = 0; - ieee80211_chswitch_done(ctx->vif, false); + ieee80211_chswitch_done(ctx->vif, false, 0); } out: @@ -1024,7 +1024,7 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) return; if (ctx->vif) - ieee80211_chswitch_done(ctx->vif, is_success); + ieee80211_chswitch_done(ctx->vif, is_success, 0); } static void iwlagn_configure_filter(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index 7369a45f7f2b..b28d998c65c5 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -1839,7 +1839,7 @@ void iwl_mvm_channel_switch_start_notif(struct iwl_mvm *mvm, iwl_mvm_csa_client_absent(mvm, vif); cancel_delayed_work(&mvmvif->csa_work); - ieee80211_chswitch_done(vif, true); + ieee80211_chswitch_done(vif, true, 0); break; default: /* should never happen */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 5918c1f2b10c..921f72dcddac 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1370,7 +1370,8 @@ int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, } int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *link_conf) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); @@ -1452,7 +1453,8 @@ void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, mvmvif->csa_failed = true; mutex_unlock(&mvm->mutex); - iwl_mvm_post_channel_switch(hw, vif); + /* If we're here, we can't support MLD */ + iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); } void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) @@ -1464,7 +1466,7 @@ void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); /* Trigger disconnect (should clear the CSA state) */ - ieee80211_chswitch_done(vif, false); + ieee80211_chswitch_done(vif, false, 0); } static u8 @@ -5535,7 +5537,7 @@ void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, if (mvmvif->csa_misbehave) { /* Second time, give up on this AP*/ iwl_mvm_abort_channel_switch(hw, vif); - ieee80211_chswitch_done(vif, false); + ieee80211_chswitch_done(vif, false, 0); mvmvif->csa_misbehave = false; return; } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index b18c91c5dd5d..dda13f4351c3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -2427,7 +2427,8 @@ static inline u8 iwl_mvm_phy_band_from_nl80211(enum nl80211_band band) /* Channel Switch */ void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk); int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, - struct ieee80211_vif *vif); + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *link); /* Channel Context */ /** diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c index 5f0e7144a951..e1f6cea649c3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c @@ -223,7 +223,7 @@ iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm, } iwl_mvm_csa_client_absent(mvm, te_data->vif); cancel_delayed_work(&mvmvif->csa_work); - ieee80211_chswitch_done(te_data->vif, true); + ieee80211_chswitch_done(te_data->vif, true, 0); break; default: /* should never happen */ diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c index 46ab69eab26a..1e082d039b82 100644 --- a/drivers/net/wireless/ti/wlcore/event.c +++ b/drivers/net/wireless/ti/wlcore/event.c @@ -229,7 +229,7 @@ void wlcore_event_channel_switch(struct wl1271 *wl, vif = wl12xx_wlvif_to_vif(wlvif); if (wlvif->bss_type == BSS_TYPE_STA_BSS) { - ieee80211_chswitch_done(vif, success); + ieee80211_chswitch_done(vif, success, 0); cancel_delayed_work(&wlvif->channel_switch_work); } else { set_bit(WLVIF_FLAG_BEACON_DISABLED, &wlvif->flags); diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index bf21611872a3..b7e68d2721c1 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -2043,7 +2043,7 @@ static void wlcore_channel_switch_work(struct work_struct *work) goto out; vif = wl12xx_wlvif_to_vif(wlvif); - ieee80211_chswitch_done(vif, false); + ieee80211_chswitch_done(vif, false, 0); ret = pm_runtime_resume_and_get(wl->dev); if (ret < 0) @@ -3030,7 +3030,7 @@ static int wlcore_unset_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif) struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); wl12xx_cmd_stop_channel_switch(wl, wlvif); - ieee80211_chswitch_done(vif, false); + ieee80211_chswitch_done(vif, false, 0); cancel_delayed_work(&wlvif->channel_switch_work); } @@ -5451,7 +5451,7 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw, if (unlikely(wl->state == WLCORE_STATE_OFF)) { if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) - ieee80211_chswitch_done(vif, false); + ieee80211_chswitch_done(vif, false, 0); goto out; } else if (unlikely(wl->state != WLCORE_STATE_ON)) { goto out; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 7c707358d15c..67f54825110f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -4544,7 +4544,8 @@ struct ieee80211_ops { struct ieee80211_channel_switch *ch_switch); int (*post_channel_switch)(struct ieee80211_hw *hw, - struct ieee80211_vif *vif); + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *link_conf); void (*abort_channel_switch)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); void (*channel_switch_rx_beacon)(struct ieee80211_hw *hw, @@ -6542,11 +6543,14 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw); * ieee80211_chswitch_done - Complete channel switch process * @vif: &struct ieee80211_vif pointer from the add_interface callback. * @success: make the channel switch successful or not + * @link_id: the link_id on which the switch was done. Ignored if success is + * false. * * Complete the channel switch post-process: set the new operational channel * and wake up the suspended queues. */ -void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success); +void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success, + unsigned int link_id); /** * ieee80211_channel_switch_disconnect - disconnect due to channel switch error diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 45e7a5d9c7d9..ae5017edd09f 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3638,8 +3638,9 @@ static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, return 0; } -static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) +static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; struct ieee80211_local *local = sdata->local; u64 changed = 0; int err; @@ -3655,20 +3656,20 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) * completed successfully */ - if (sdata->deflink.reserved_chanctx) { + if (link_data->reserved_chanctx) { /* * with multi-vif csa driver may call ieee80211_csa_finish() * many times while waiting for other interfaces to use their * reservations */ - if (sdata->deflink.reserved_ready) + if (link_data->reserved_ready) return 0; return ieee80211_link_use_reserved_context(&sdata->deflink); } if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, - &sdata->deflink.csa_chandef)) + &link_data->csa_chandef)) return -EINVAL; sdata->vif.bss_conf.csa_active = false; @@ -3685,25 +3686,27 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); - if (sdata->deflink.csa_block_tx) { + if (link_data->csa_block_tx) { ieee80211_wake_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); - sdata->deflink.csa_block_tx = false; + link_data->csa_block_tx = false; } - err = drv_post_channel_switch(sdata); + err = drv_post_channel_switch(link_data); if (err) return err; - cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, + cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef, 0, sdata->vif.bss_conf.eht_puncturing); return 0; } -static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) +static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) { - if (__ieee80211_csa_finalize(sdata)) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; + + if (__ieee80211_csa_finalize(link_data)) { sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, GFP_KERNEL); @@ -3712,9 +3715,9 @@ static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) void ieee80211_csa_finalize_work(struct work_struct *work) { - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, - deflink.csa_finalize_work); + struct ieee80211_link_data *link = + container_of(work, struct ieee80211_link_data, csa_finalize_work); + struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; sdata_lock(sdata); @@ -3722,13 +3725,13 @@ void ieee80211_csa_finalize_work(struct work_struct *work) mutex_lock(&local->chanctx_mtx); /* AP might have been stopped while waiting for the lock. */ - if (!sdata->vif.bss_conf.csa_active) + if (!link->conf->csa_active) goto unlock; if (!ieee80211_sdata_running(sdata)) goto unlock; - ieee80211_csa_finalize(sdata); + ieee80211_csa_finalize(link); unlock: mutex_unlock(&local->chanctx_mtx); @@ -3978,7 +3981,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, drv_channel_switch_beacon(sdata, ¶ms->chandef); } else { /* if the beacon didn't change, we can finalize immediately */ - ieee80211_csa_finalize(sdata); + ieee80211_csa_finalize(&sdata->deflink); } out: diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index c4505593ba7a..a41dd60ae4b4 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -1072,8 +1072,9 @@ drv_pre_channel_switch(struct ieee80211_sub_if_data *sdata, } static inline int -drv_post_channel_switch(struct ieee80211_sub_if_data *sdata) +drv_post_channel_switch(struct ieee80211_link_data *link) { + struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; int ret = 0; @@ -1082,7 +1083,8 @@ drv_post_channel_switch(struct ieee80211_sub_if_data *sdata) trace_drv_post_channel_switch(local, sdata); if (local->ops->post_channel_switch) - ret = local->ops->post_channel_switch(&local->hw, &sdata->vif); + ret = local->ops->post_channel_switch(&local->hw, &sdata->vif, + link->conf); trace_drv_return_int(local, ret); return ret; } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f93eb38ae0b8..ca6045f56b4b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1773,7 +1773,7 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) */ link->u.mgd.beacon_crc_valid = false; - ret = drv_post_channel_switch(sdata); + ret = drv_post_channel_switch(link); if (ret) { sdata_info(sdata, "driver post channel switch failed, disconnecting\n"); @@ -1785,25 +1785,36 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0, 0); } -void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) +void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success, + unsigned int link_id) { + struct ieee80211_link_data *link; struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) - success = false; + struct ieee80211_link_data_managed *ifmgd; trace_api_chswitch_done(sdata, success); + + rcu_read_lock(); + + link = rcu_dereference(sdata->link[link_id]); + if (WARN_ON(!link)) { + rcu_read_unlock(); + return; + } + + ifmgd = &link->u.mgd; + if (!success) { sdata_info(sdata, "driver channel switch failed, disconnecting\n"); wiphy_work_queue(sdata->local->hw.wiphy, - &ifmgd->csa_connection_drop_work); + &sdata->u.mgd.csa_connection_drop_work); } else { wiphy_delayed_work_queue(sdata->local->hw.wiphy, - &sdata->deflink.u.mgd.chswitch_work, - 0); + &ifmgd->chswitch_work, 0); } + + rcu_read_unlock(); } EXPORT_SYMBOL(ieee80211_chswitch_done);