From patchwork Sun May 5 06:19:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Korenblit, Miriam Rachel" X-Patchwork-Id: 794917 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1724B3FD4 for ; Sun, 5 May 2024 06:20:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714890028; cv=none; b=Bpt6QeqBDtxCzkMzh/M8fBJ27qXmpBpP7UDeYZXQ6hb6Xf1rtjDx/BXKCyEIY6mPNQ7zyoyoALjDswARyx3Xcc7GB12pkh6iVZsKsH7CcUNd8q/gdCRLEQ8mEiJnmTky/1xA1elOqIeapKKsUTgA8CwKb9zkhOnLJKiwHeh+N70= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714890028; c=relaxed/simple; bh=3TNFJrvG+8++CKCEXaguoE8KyyOS0KjuTAnpGhzwjnQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=S/gFCl2Op8oMK0WVvyNfHnHM1qq75c9ZeUilyHicbCC6Dfs60an59nSu1pQM8MC8Vq7PXUFCirjvR1LXcwOFAyMa4PpR/5gmBD+MCtVGsjmv6nMUBpOPQeEacmcgRqzQX/ahl7P0cm40uY+0eUMpmUQPrx/5C+Bzv9zW1wxCrOE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=DAQ1bVyb; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="DAQ1bVyb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714890026; x=1746426026; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=3TNFJrvG+8++CKCEXaguoE8KyyOS0KjuTAnpGhzwjnQ=; b=DAQ1bVybIhlX8Qc6N1iVDgTKvKKHkH/3kA2N2eeoPqfCDgYoszBIIdxc HnoX/BkhXZvqlTnL7bF0wTMa1DrYZmBT7Mupta7SUQvYTVpynYJb22KOv bf8MMJvDreIoYrdc+ojo1+fEbfzAq/wqcUL+KPAuPUaIF4P0xSsVhdLsQ t93i1YGraJsSITFKvuQDgEhjVKFwSmfYMxaFINBSWIcZl/2MViAQjNzJJ A17KxE6z0xyB4v3CpZaPIkuAHw8LJ1xwmdeRwkVvu+71xPZjpYfy8HI1R wmv3jtv4poQ1osEy8r50PTcPbGXOT3OTL8omMfy+hmd8tW5DBTWEJTNTn Q==; X-CSE-ConnectionGUID: p0XUEeZCRkC7F068EXbQbg== X-CSE-MsgGUID: gNtkjlwNR+q+fP3Gg/HRow== X-IronPort-AV: E=McAfee;i="6600,9927,11063"; a="14461811" X-IronPort-AV: E=Sophos;i="6.07,255,1708416000"; d="scan'208";a="14461811" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 May 2024 23:20:22 -0700 X-CSE-ConnectionGUID: hn8W32EdTlGqYJ7mncO7oQ== X-CSE-MsgGUID: 7G8mecuCTMCnLnUyTa9N5A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,255,1708416000"; d="scan'208";a="27903604" Received: from unknown (HELO WEIS0040.iil.intel.com) ([10.12.217.108]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 May 2024 23:20:22 -0700 From: Miri Korenblit To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Johannes Berg Subject: [PATCH 06/15] wifi: iwlwifi: mvm: Activate EMLSR based on traffic volume Date: Sun, 5 May 2024 09:19:50 +0300 Message-Id: <20240505091420.9480f99ac8fc.If9eb946e929a39e10fe5f4638bc8bc3f8976edf1@changeid> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240505061959.825245-1-miriam.rachel.korenblit@intel.com> References: <20240505061959.825245-1-miriam.rachel.korenblit@intel.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Israel (74) Limited Adjust EMLSR activation to account for traffic levels. By tracking the number of RX/TX MPDUs, EMLSR will be activated only when traffic volume meets the required threshold. Signed-off-by: Miri Korenblit Reviewed-by: Johannes Berg --- .../wireless/intel/iwlwifi/mvm/constants.h | 2 + .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 21 +++++ .../wireless/intel/iwlwifi/mvm/mld-mac80211.c | 34 ++++++++ .../net/wireless/intel/iwlwifi/mvm/mld-sta.c | 5 +- drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 4 + drivers/net/wireless/intel/iwlwifi/mvm/rx.c | 50 +++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 19 ++-- drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 86 +++++++++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/sta.h | 24 ++++++ drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 7 +- 10 files changed, 244 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h index 965fbad05531..3cbeaddf4358 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h @@ -15,6 +15,7 @@ #define IWL_MVM_BT_COEX_ENABLE_ESR_THRESH 63 #define IWL_MVM_BT_COEX_WIFI_LOSS_THRESH 0 #define IWL_MVM_TRIGGER_LINK_SEL_TIME_SEC 30 +#define IWL_MVM_TPT_COUNT_WINDOW_SEC 5 #define IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT (100 * USEC_PER_MSEC) #define IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT (100 * USEC_PER_MSEC) @@ -135,4 +136,5 @@ #define IWL_MVM_HIGH_RSSI_THRESH_160MHZ -58 #define IWL_MVM_LOW_RSSI_THRESH_160MHZ -61 +#define IWL_MVM_ENTER_ESR_TPT_THRESH 400 #endif /* __MVM_CONSTANTS_H */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index c8477afe3fc6..4c94f753c951 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1639,6 +1639,18 @@ static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) mutex_unlock(&mvmvif->mvm->mutex); } +static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) +{ + struct iwl_mvm_vif *mvmvif = + container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); + struct iwl_mvm *mvm = mvmvif->mvm; + struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); + + mutex_lock(&mvm->mutex); + iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); + mutex_unlock(&mvm->mutex); +} + void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) { lockdep_assert_held(&mvm->mutex); @@ -1654,6 +1666,9 @@ void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, iwl_mvm_mlo_int_scan_wk); + + wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, + iwl_mvm_unblock_esr_tpt); } static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, @@ -1803,6 +1818,8 @@ void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, wiphy_delayed_work_cancel(mvm->hw->wiphy, &mvmvif->mlo_int_scan_wk); + wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); + cancel_delayed_work_sync(&mvmvif->csa_work); } @@ -3930,6 +3947,8 @@ iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, memset(&mvmvif->last_esr_exit, 0, sizeof(mvmvif->last_esr_exit)); + iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); + /* when client is authorized (AP station marked as such), * try to enable the best link(s). */ @@ -3990,6 +4009,8 @@ iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, wiphy_delayed_work_cancel(mvm->hw->wiphy, &mvmvif->mlo_int_scan_wk); + wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); + /* No need for the periodic statistics anymore */ if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active) iwl_mvm_request_periodic_system_statistics(mvm, false); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c index 5609b0321647..305f194ae7b2 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c @@ -207,6 +207,30 @@ static unsigned int iwl_mvm_mld_count_active_links(struct iwl_mvm_vif *mvmvif) return n_active; } +static void iwl_mvm_restart_mpdu_count(struct iwl_mvm *mvm, + struct iwl_mvm_vif *mvmvif) +{ + struct ieee80211_sta *ap_sta = mvmvif->ap_sta; + struct iwl_mvm_sta *mvmsta; + + lockdep_assert_held(&mvm->mutex); + + if (!ap_sta) + return; + + mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); + if (!mvmsta->mpdu_counters) + return; + + for (int q = 0; q < mvm->trans->num_rx_queues; q++) { + spin_lock_bh(&mvmsta->mpdu_counters[q].lock); + memset(mvmsta->mpdu_counters[q].per_link, 0, + sizeof(mvmsta->mpdu_counters[q].per_link)); + mvmsta->mpdu_counters[q].window_start = jiffies; + spin_unlock_bh(&mvmsta->mpdu_counters[q].lock); + } +} + static int iwl_mvm_esr_mode_active(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { @@ -243,6 +267,13 @@ static int iwl_mvm_esr_mode_active(struct iwl_mvm *mvm, /* Needed for tracking RSSI */ iwl_mvm_request_periodic_system_statistics(mvm, true); + /* + * Restart the MPDU counters and the counting window, so when the + * statistics arrive (which is where we look at the counters) we + * will be at the end of the window. + */ + iwl_mvm_restart_mpdu_count(mvm, mvmvif); + return ret; } @@ -412,6 +443,9 @@ static int iwl_mvm_esr_mode_inactive(struct iwl_mvm *mvm, iwl_mvm_request_periodic_system_statistics(mvm, false); + /* Start a new counting window */ + iwl_mvm_restart_mpdu_count(mvm, mvmvif); + return ret; } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c index 8b59535e7edf..b7a461dba41e 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2022-2023 Intel Corporation + * Copyright (C) 2022-2024 Intel Corporation */ #include "mvm.h" #include "time-sync.h" @@ -723,7 +723,6 @@ int iwl_mvm_mld_add_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, iwl_mvm_mld_set_ap_sta_id(sta, mvm_vif->link[link_id], mvm_link_sta); } - return 0; err: @@ -849,6 +848,8 @@ int iwl_mvm_mld_rm_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, link_id, stay_in_fw); } + kfree(mvm_sta->mpdu_counters); + mvm_sta->mpdu_counters = NULL; return ret; } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index c0e0600c4d99..7f1a4ac56397 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -356,6 +356,7 @@ struct iwl_mvm_vif_link_info { * @IWL_MVM_ESR_BLOCKED_PREVENTION: Prevent EMLSR to avoid entering and exiting * in a loop. * @IWL_MVM_ESR_BLOCKED_WOWLAN: WOWLAN is preventing the enablement of EMLSR + * @IWL_MVM_ESR_BLOCKED_TPT: block EMLSR when there is not enough traffic * @IWL_MVM_ESR_EXIT_MISSED_BEACON: exited EMLSR due to missed beacons * @IWL_MVM_ESR_EXIT_LOW_RSSI: link is deactivated/not allowed for EMLSR * due to low RSSI. @@ -365,6 +366,7 @@ struct iwl_mvm_vif_link_info { enum iwl_mvm_esr_state { IWL_MVM_ESR_BLOCKED_PREVENTION = 0x1, IWL_MVM_ESR_BLOCKED_WOWLAN = 0x2, + IWL_MVM_ESR_BLOCKED_TPT = 0x4, IWL_MVM_ESR_EXIT_MISSED_BEACON = 0x10000, IWL_MVM_ESR_EXIT_LOW_RSSI = 0x20000, IWL_MVM_ESR_EXIT_COEX = 0x40000, @@ -430,6 +432,7 @@ struct iwl_mvm_esr_exit { * &IWL_MVM_ESR_PREVENT_REASONS. * @prevent_esr_done_wk: work that should be done when esr prevention ends. * @mlo_int_scan_wk: work for the internal MLO scan. + * @unblock_esr_tpt_wk: work for unblocking EMLSR when tpt is high enough. */ struct iwl_mvm_vif { struct iwl_mvm *mvm; @@ -527,6 +530,7 @@ struct iwl_mvm_vif { u8 exit_same_reason_count; struct wiphy_delayed_work prevent_esr_done_wk; struct wiphy_delayed_work mlo_int_scan_wk; + struct wiphy_work unblock_esr_tpt_wk; struct iwl_mvm_vif_link_info deflink; struct iwl_mvm_vif_link_info *link[IEEE80211_MLD_MAX_NUM_LINKS]; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c index 68ec6b8203df..36083905457b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c @@ -951,6 +951,54 @@ iwl_mvm_stat_iterator_all_links(struct iwl_mvm *mvm, } } +static void iwl_mvm_update_esr_mode_tpt(struct iwl_mvm *mvm) +{ + struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); + struct iwl_mvm_vif *mvmvif; + struct iwl_mvm_sta *mvmsta; + unsigned long total_tx = 0, total_rx = 0; + + lockdep_assert_held(&mvm->mutex); + + if (!bss_vif) + return; + + mvmvif = iwl_mvm_vif_from_mac80211(bss_vif); + + if (!mvmvif->esr_active || !mvmvif->ap_sta) + return; + + mvmsta = iwl_mvm_sta_from_mac80211(mvmvif->ap_sta); + /* We only count for the AP sta in a MLO connection */ + if (!mvmsta->mpdu_counters) + return; + + /* Sum up RX and TX MPDUs from the different queues/links */ + for (int q = 0; q < mvm->trans->num_rx_queues; q++) { + spin_lock_bh(&mvmsta->mpdu_counters[q].lock); + + /* The link IDs that doesn't exist will contain 0 */ + for (int link = 0; link < IWL_MVM_FW_MAX_LINK_ID; link++) { + total_tx += mvmsta->mpdu_counters[q].per_link[link].tx; + total_rx += mvmsta->mpdu_counters[q].per_link[link].rx; + } + /* + * In EMLSR we have statistics every 5 seconds, so we can reset + * the counters upon every statistics notification. + */ + memset(mvmsta->mpdu_counters[q].per_link, 0, + sizeof(mvmsta->mpdu_counters[q].per_link)); + + spin_unlock_bh(&mvmsta->mpdu_counters[q].lock); + } + + /* If we don't have enough MPDUs - exit EMLSR */ + if (total_tx < IWL_MVM_ENTER_ESR_TPT_THRESH && + total_rx < IWL_MVM_ENTER_ESR_TPT_THRESH) + iwl_mvm_block_esr(mvm, bss_vif, IWL_MVM_ESR_BLOCKED_TPT, + iwl_mvm_get_primary_link(bss_vif)); +} + void iwl_mvm_handle_rx_system_oper_stats(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { @@ -978,6 +1026,8 @@ void iwl_mvm_handle_rx_system_oper_stats(struct iwl_mvm *mvm, ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, average_energy); iwl_mvm_handle_per_phy_stats(mvm, stats->per_phy); + + iwl_mvm_update_esr_mode_tpt(mvm); } void iwl_mvm_handle_rx_system_oper_part1_stats(struct iwl_mvm *mvm, diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index dc074fcf41a0..d78af2928152 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -2035,6 +2035,7 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, struct ieee80211_link_sta *link_sta = NULL; struct sk_buff *skb; u8 crypt_len = 0; + u8 sta_id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID); size_t desc_size; struct iwl_mvm_rx_phy_data phy_data = {}; u32 format; @@ -2183,13 +2184,11 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, rcu_read_lock(); if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) { - u8 id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID); - - if (!WARN_ON_ONCE(id >= mvm->fw->ucode_capa.num_stations)) { - sta = rcu_dereference(mvm->fw_id_to_mac_id[id]); + if (!WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) { + sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); if (IS_ERR(sta)) sta = NULL; - link_sta = rcu_dereference(mvm->fw_id_to_link_sta[id]); + link_sta = rcu_dereference(mvm->fw_id_to_link_sta[sta_id]); if (sta && sta->valid_links && link_sta) { rx_status->link_valid = 1; @@ -2310,6 +2309,16 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, iwl_mvm_agg_rx_received(mvm, reorder_data, baid); } + + if (ieee80211_is_data(hdr->frame_control)) { + u8 sub_frame_idx = desc->amsdu_info & + IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK; + + /* 0 means not an A-MSDU, and 1 means a new A-MSDU */ + if (!sub_frame_idx || sub_frame_idx == 1) + iwl_mvm_count_mpdu(mvmsta, sta_id, 1, false, + queue); + } } /* management stuff on default queue */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index 491c449fd431..20d4968d692a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -1847,6 +1847,18 @@ int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif, iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); + /* MPDUs are counted only when EMLSR is possible */ + if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && + !sta->tdls && ieee80211_vif_is_mld(vif)) { + mvm_sta->mpdu_counters = + kcalloc(mvm->trans->num_rx_queues, + sizeof(*mvm_sta->mpdu_counters), + GFP_KERNEL); + if (mvm_sta->mpdu_counters) + for (int q = 0; q < mvm->trans->num_rx_queues; q++) + spin_lock_init(&mvm_sta->mpdu_counters[q].lock); + } + return 0; } @@ -4392,3 +4404,77 @@ void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, if (ret) IWL_ERR(mvm, "Failed to cancel the channel switch\n"); } + +static int iwl_mvm_fw_sta_id_to_fw_link_id(struct iwl_mvm_vif *mvmvif, + u8 fw_sta_id) +{ + struct ieee80211_link_sta *link_sta = + rcu_dereference(mvmvif->mvm->fw_id_to_link_sta[fw_sta_id]); + struct iwl_mvm_vif_link_info *link; + + if (WARN_ON_ONCE(!link_sta)) + return -EINVAL; + + link = mvmvif->link[link_sta->link_id]; + + if (WARN_ON_ONCE(!link)) + return -EINVAL; + + return link->fw_link_id; +} + +#define IWL_MVM_TPT_COUNT_WINDOW (IWL_MVM_TPT_COUNT_WINDOW_SEC * HZ) + +void iwl_mvm_count_mpdu(struct iwl_mvm_sta *mvm_sta, u8 fw_sta_id, u32 count, + bool tx, int queue) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvm_sta->vif); + struct iwl_mvm_tpt_counter *queue_counter; + struct iwl_mvm_mpdu_counter *link_counter; + u32 total_mpdus = 0; + int fw_link_id; + + /* Count only for a BSS sta, and only when EMLSR is possible */ + if (!mvm_sta->mpdu_counters) + return; + + /* Map sta id to link id */ + fw_link_id = iwl_mvm_fw_sta_id_to_fw_link_id(mvmvif, fw_sta_id); + if (fw_link_id < 0) + return; + + queue_counter = &mvm_sta->mpdu_counters[queue]; + link_counter = &queue_counter->per_link[fw_link_id]; + + spin_lock_bh(&queue_counter->lock); + + if (tx) + link_counter->tx += count; + else + link_counter->rx += count; + + /* + * When not in EMLSR, the window and the decision to enter EMLSR are + * handled during counting, when in EMLSR - in the statistics flow + */ + if (mvmvif->esr_active) + goto out; + + if (time_is_before_jiffies(queue_counter->window_start + + IWL_MVM_TPT_COUNT_WINDOW)) { + memset(queue_counter->per_link, 0, + sizeof(queue_counter->per_link)); + queue_counter->window_start = jiffies; + } + + for (int i = 0; i < IWL_MVM_FW_MAX_LINK_ID; i++) + total_mpdus += tx ? queue_counter->per_link[i].tx : + queue_counter->per_link[i].rx; + + if (total_mpdus > IWL_MVM_ENTER_ESR_TPT_THRESH) + wiphy_work_queue(mvmvif->mvm->hw->wiphy, + &mvmvif->unblock_esr_tpt_wk); + +out: + spin_unlock_bh(&queue_counter->lock); +} diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h index b3450569864e..264f1f9394b6 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h @@ -347,6 +347,24 @@ struct iwl_mvm_link_sta { u8 avg_energy; }; +struct iwl_mvm_mpdu_counter { + u32 tx; + u32 rx; +}; + +/** + * struct iwl_mvm_tpt_counter - per-queue MPDU counter + * + * @lock: Needed to protect the counters when modified from statistics. + * @per_link: per-link counters. + * @window_start: timestamp of the counting-window start + */ +struct iwl_mvm_tpt_counter { + spinlock_t lock; + struct iwl_mvm_mpdu_counter per_link[IWL_MVM_FW_MAX_LINK_ID]; + unsigned long window_start; +} ____cacheline_aligned_in_smp; + /** * struct iwl_mvm_sta - representation of a station in the driver * @vif: the interface the station belongs to @@ -394,6 +412,7 @@ struct iwl_mvm_link_sta { * @link: per link sta entries. For non-MLO only link[0] holds data. For MLO, * link[0] points to deflink and link[link_id] is allocated when new link * sta is added. + * @mpdu_counters: RX/TX MPDUs counters for each queue. * * When mac80211 creates a station it reserves some space (hw->sta_data_size) * in the structure for use by driver. This structure is placed in that @@ -433,6 +452,8 @@ struct iwl_mvm_sta { struct iwl_mvm_link_sta deflink; struct iwl_mvm_link_sta __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; + + struct iwl_mvm_tpt_counter *mpdu_counters; }; u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data); @@ -514,6 +535,9 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); +void iwl_mvm_count_mpdu(struct iwl_mvm_sta *mvm_sta, u8 fw_sta_id, u32 count, + bool tx, int queue); + /* AMPDU */ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid, u16 ssn, bool start, u16 buf_size, u16 timeout); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 782ddc8c296b..1d695ece93e9 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -1870,6 +1870,7 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, IWL_DEBUG_TX_REPLY(mvm, "Next reclaimed packet:%d\n", next_reclaimed); + iwl_mvm_count_mpdu(mvmsta, sta_id, 1, true, 0); } else { IWL_DEBUG_TX_REPLY(mvm, "NDP - don't update next_reclaimed\n"); @@ -2247,9 +2248,13 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) le32_to_cpu(ba_res->tx_rate), false); } - if (mvmsta) + if (mvmsta) { iwl_mvm_tx_airtime(mvm, mvmsta, le32_to_cpu(ba_res->wireless_time)); + + iwl_mvm_count_mpdu(mvmsta, sta_id, + le16_to_cpu(ba_res->txed), true, 0); + } rcu_read_unlock(); return; }