From patchwork Mon Jan 4 09:20:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 11996435 X-Patchwork-Delegate: kvalo@adurom.com 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 426AAC433E9 for ; Mon, 4 Jan 2021 09:22:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1433D21D93 for ; Mon, 4 Jan 2021 09:22:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726711AbhADJWL (ORCPT ); Mon, 4 Jan 2021 04:22:11 -0500 Received: from rtits2.realtek.com ([211.75.126.72]:52358 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726608AbhADJWK (ORCPT ); Mon, 4 Jan 2021 04:22:10 -0500 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 1049LQXx8024439, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexmbs04.realtek.com.tw[172.21.6.97]) by rtits2.realtek.com.tw (8.15.2/2.70/5.88) with ESMTPS id 1049LQXx8024439 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Mon, 4 Jan 2021 17:21:26 +0800 Received: from localhost (172.21.69.213) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Mon, 4 Jan 2021 17:21:25 +0800 From: Ping-Ke Shih To: CC: Subject: [PATCH V2 08/18] rtw89: implement mac80211 ops Date: Mon, 4 Jan 2021 17:20:26 +0800 Message-ID: <20210104092036.16089-6-pkshih@realtek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20210104092036.16089-1-pkshih@realtek.com> References: <20210104092036.16089-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.213] X-ClientProxiedBy: RTEXMBS01.realtek.com.tw (172.21.6.94) To RTEXMBS04.realtek.com.tw (172.21.6.97) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Implement ops to interactive with mac80211. The ops contain start/stop, TX, add/remove vif, config, sta state, key, ampdu action, sw_scan_start/complete, and so on. To avoid racing between ieee80211 delayed work and ioctl, all of them are protected by rtwdev->mutex. To yield better TX performance, wake TX queue is implemented. Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/mac80211.c | 521 ++++++++++++++++++ 1 file changed, 521 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw89/mac80211.c diff --git a/drivers/net/wireless/realtek/rtw89/mac80211.c b/drivers/net/wireless/realtek/rtw89/mac80211.c new file mode 100644 index 000000000000..c3e178350473 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/mac80211.c @@ -0,0 +1,521 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2019-2020 Realtek Corporation + */ + +#include "cam.h" +#include "coex.h" +#include "debug.h" +#include "fw.h" +#include "mac.h" +#include "phy.h" +#include "reg.h" + +static void rtw89_ops_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_vif *vif = info->control.vif; + struct ieee80211_sta *sta = control->sta; + int ret, qsel; + + ret = rtw89_core_tx_write(rtwdev, vif, sta, skb, &qsel); + if (ret) { + rtw89_err(rtwdev, "failed to transmit skb: %d\n", ret); + ieee80211_free_txskb(hw, skb); + } + rtw89_core_tx_kick_off(rtwdev, qsel); +} + +static void rtw89_ops_wake_tx_queue(struct ieee80211_hw *hw, + struct ieee80211_txq *txq) +{ + struct rtw89_dev *rtwdev = hw->priv; + + ieee80211_schedule_txq(hw, txq); + tasklet_schedule(&rtwdev->txq_tasklet); +} + +static int __rtw89_ops_start(struct ieee80211_hw *hw) +{ + struct rtw89_dev *rtwdev = hw->priv; + int ret; + + rtwdev->mac.qta_mode = RTW89_QTA_SCC; + ret = rtw89_mac_init(rtwdev); + if (ret) { + rtw89_err(rtwdev, "mac init fail, ret:%d\n", ret); + return ret; + } + + /* btc power on notify */ + + /* efuse process */ + + /* pre-config BB/RF, BB reset/RFC reset */ + rtw89_mac_disable_bb_rf(rtwdev); + rtw89_mac_enable_bb_rf(rtwdev); + rtw89_phy_init_bb_reg(rtwdev); + rtw89_phy_init_rf_reg(rtwdev); + + rtw89_btc_ntfy_init(rtwdev, BTC_MODE_WL); + + rtw89_phy_dm_init(rtwdev); + + rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); + + ret = rtw89_hci_start(rtwdev); + if (ret) { + rtw89_err(rtwdev, "failed to start hci\n"); + return ret; + } + + ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->track_work, + RTW89_TRACK_WORK_PERIOD); + + set_bit(RTW89_FLAG_RUNNING, rtwdev->flags); + + return 0; +} + +static int rtw89_ops_start(struct ieee80211_hw *hw) +{ + struct rtw89_dev *rtwdev = hw->priv; + int ret; + + mutex_lock(&rtwdev->mutex); + ret = __rtw89_ops_start(hw); + mutex_unlock(&rtwdev->mutex); + + return ret; +} + +static void __rtw89_ops_stop(struct ieee80211_hw *hw) +{ + struct rtw89_dev *rtwdev = hw->priv; + + clear_bit(RTW89_FLAG_RUNNING, rtwdev->flags); + + mutex_unlock(&rtwdev->mutex); + + cancel_work_sync(&rtwdev->c2h_work); + cancel_delayed_work_sync(&rtwdev->track_work); + + mutex_lock(&rtwdev->mutex); + + rtw89_mac_flush_txq(rtwdev, BIT(rtwdev->hw->queues) - 1, true); + rtw89_hci_deinit(rtwdev); + rtw89_mac_pwr_off(rtwdev); + rtw89_hci_stop(rtwdev); + rtw89_hci_reset(rtwdev); +} + +static void rtw89_ops_stop(struct ieee80211_hw *hw) +{ + struct rtw89_dev *rtwdev = hw->priv; + + mutex_lock(&rtwdev->mutex); + __rtw89_ops_stop(hw); + mutex_unlock(&rtwdev->mutex); +} + +static int rtw89_ops_config(struct ieee80211_hw *hw, u32 changed) +{ + struct rtw89_dev *rtwdev = hw->priv; + + mutex_lock(&rtwdev->mutex); + + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) + rtw89_set_channel(rtwdev); + + mutex_unlock(&rtwdev->mutex); + + return 0; +} + +static int rtw89_ops_add_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; + int ret = 0; + + mutex_lock(&rtwdev->mutex); + + rtw89_vif_type_mapping(vif, false); + rtwvif->port = rtw89_core_acquire_bit_map(rtwdev->hw_port, + RTW89_MAX_HW_PORT_NUM); + if (rtwvif->port == RTW89_MAX_HW_PORT_NUM) { + ret = -ENOSPC; + goto out; + } + + rtwvif->bcn_hit_cond = 0; + rtwvif->mac_idx = RTW89_MAC_0; + rtwvif->hit_rule = 0; + ether_addr_copy(rtwvif->mac_addr, vif->addr); + + ret = rtw89_mac_add_vif(rtwdev, rtwvif); + if (ret) { + rtw89_core_release_bit_map(rtwdev->hw_port, rtwvif->port); + goto out; + } + + rtw89_core_txq_init(rtwdev, vif->txq); + +out: + mutex_unlock(&rtwdev->mutex); + + return ret; +} + +static void rtw89_ops_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; + + mutex_lock(&rtwdev->mutex); + + rtw89_mac_remove_vif(rtwdev, rtwvif); + rtw89_core_release_bit_map(rtwdev->hw_port, rtwvif->port); + + mutex_unlock(&rtwdev->mutex); +} + +static void rtw89_ops_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *new_flags, + u64 multicast) +{ + struct rtw89_dev *rtwdev = hw->priv; + + mutex_lock(&rtwdev->mutex); + + *new_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_FCSFAIL | + FIF_BCN_PRBRESP_PROMISC; + + if (changed_flags & FIF_ALLMULTI) { + if (*new_flags & FIF_ALLMULTI) + rtwdev->hal.rx_fltr &= ~B_AX_A_MC; + else + rtwdev->hal.rx_fltr |= B_AX_A_MC; + } + if (changed_flags & FIF_FCSFAIL) { + if (*new_flags & FIF_FCSFAIL) + rtwdev->hal.rx_fltr |= B_AX_A_CRC32_ERR; + else + rtwdev->hal.rx_fltr &= ~B_AX_A_CRC32_ERR; + } + if (changed_flags & FIF_OTHER_BSS) { + if (*new_flags & FIF_OTHER_BSS) + rtwdev->hal.rx_fltr &= ~B_AX_A_A1_MATCH; + else + rtwdev->hal.rx_fltr |= B_AX_A_A1_MATCH; + } + if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { + if (*new_flags & FIF_BCN_PRBRESP_PROMISC) { + rtwdev->hal.rx_fltr &= ~B_AX_A_BCN_CHK_EN; + rtwdev->hal.rx_fltr &= ~B_AX_A_BC; + rtwdev->hal.rx_fltr &= ~B_AX_A_A1_MATCH; + } else { + rtwdev->hal.rx_fltr |= B_AX_A_BCN_CHK_EN; + rtwdev->hal.rx_fltr |= B_AX_A_BC; + rtwdev->hal.rx_fltr |= B_AX_A_A1_MATCH; + } + } + + rtw89_write32(rtwdev, + rtw89_mac_reg_by_idx(R_AX_RX_FLTR_OPT, RTW89_MAC_0), + rtwdev->hal.rx_fltr); + if (!rtwdev->dbcc_en) + goto out; + rtw89_write32(rtwdev, + rtw89_mac_reg_by_idx(R_AX_RX_FLTR_OPT, RTW89_MAC_1), + rtwdev->hal.rx_fltr); + +out: + mutex_unlock(&rtwdev->mutex); +} + +static const u32 ac_to_edca_param[IEEE80211_NUM_ACS] = { + [IEEE80211_AC_VO] = R_AX_EDCA_VO_PARAM_0, + [IEEE80211_AC_VI] = R_AX_EDCA_VI_PARAM_0, + [IEEE80211_AC_BE] = R_AX_EDCA_BE_PARAM_0, + [IEEE80211_AC_BK] = R_AX_EDCA_BK_PARAM_0, +}; + +static u8 rtw89_aifsn_to_aifs(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, u8 aifsn) +{ + struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); + u8 slot_time; + u8 sifs; + + slot_time = vif->bss_conf.use_short_slot ? 9 : 20; + sifs = rtwdev->hal.current_band_type == RTW89_BAND_5G ? 16 : 10; + + return aifsn * slot_time + sifs; +} + +static void __rtw89_conf_tx(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, u16 ac) +{ + struct ieee80211_tx_queue_params *params = &rtwvif->tx_params[ac]; + u32 edca_param = rtw89_mac_reg_by_idx(ac_to_edca_param[ac], RTW89_MAC_0); + u32 val; + u8 ecw_max, ecw_min; + u8 aifs; + + /* 2^ecw - 1 = cw; ecw = log2(cw + 1) */ + ecw_max = ilog2(params->cw_max + 1); + ecw_min = ilog2(params->cw_min + 1); + aifs = rtw89_aifsn_to_aifs(rtwdev, rtwvif, params->aifs); + val = FIELD_PREP(B_AX_BE_0_TXOPLMT_MSK, params->txop) | + FIELD_PREP(B_AX_BE_0_CWMAX_MSK, ecw_max) | + FIELD_PREP(B_AX_BE_0_CWMIN_MSK, ecw_min) | + FIELD_PREP(B_AX_BE_0_AIFS_MSK, aifs); + rtw89_write32(rtwdev, edca_param, val); +} + +static void rtw89_conf_tx(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif) +{ + u16 ac; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + __rtw89_conf_tx(rtwdev, rtwvif, ac); +} + +static void rtw89_ops_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *conf, + u32 changed) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; + + mutex_lock(&rtwdev->mutex); + + if (changed & BSS_CHANGED_ASSOC) { + rtw89_phy_set_bss_color(rtwdev, vif); + rtw89_mac_port_update(rtwdev, rtwvif); + } + + if (changed & BSS_CHANGED_BSSID) { + ether_addr_copy(rtwvif->bssid, conf->bssid); + rtw89_cam_bssid_changed(rtwdev, rtwvif); + rtw89_fw_h2c_cam(rtwdev, rtwvif); + } + + if (changed & BSS_CHANGED_ERP_SLOT) + rtw89_conf_tx(rtwdev, rtwvif); + + if (changed & BSS_CHANGED_HE_BSS_COLOR) + rtw89_phy_set_bss_color(rtwdev, vif); + + mutex_unlock(&rtwdev->mutex); +} + +static int rtw89_ops_conf_tx(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, u16 ac, + const struct ieee80211_tx_queue_params *params) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; + + mutex_lock(&rtwdev->mutex); + + rtwvif->tx_params[ac] = *params; + __rtw89_conf_tx(rtwdev, rtwvif, ac); + + mutex_unlock(&rtwdev->mutex); + + return 0; +} + +static int __rtw89_ops_sta_state(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + enum ieee80211_sta_state old_state, + enum ieee80211_sta_state new_state) +{ + struct rtw89_dev *rtwdev = hw->priv; + + if (old_state == IEEE80211_STA_NOTEXIST && + new_state == IEEE80211_STA_NONE) + return rtw89_core_sta_add(rtwdev, vif, sta); + + if (old_state == IEEE80211_STA_AUTH && + new_state == IEEE80211_STA_ASSOC) + return rtw89_core_sta_assoc(rtwdev, vif, sta); + + if (old_state == IEEE80211_STA_ASSOC && + new_state == IEEE80211_STA_AUTH) + return rtw89_core_sta_disassoc(rtwdev, vif, sta); + + if (old_state == IEEE80211_STA_AUTH && + new_state == IEEE80211_STA_NONE) + return rtw89_core_sta_disconnect(rtwdev, vif, sta); + + if (old_state == IEEE80211_STA_NONE && + new_state == IEEE80211_STA_NOTEXIST) + return rtw89_core_sta_remove(rtwdev, vif, sta); + + return 0; +} + +static int rtw89_ops_sta_state(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + enum ieee80211_sta_state old_state, + enum ieee80211_sta_state new_state) +{ + struct rtw89_dev *rtwdev = hw->priv; + int ret; + + mutex_lock(&rtwdev->mutex); + ret = __rtw89_ops_sta_state(hw, vif, sta, old_state, new_state); + mutex_unlock(&rtwdev->mutex); + + return ret; +} + +static int rtw89_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct rtw89_dev *rtwdev = hw->priv; + int ret = 0; + + mutex_lock(&rtwdev->mutex); + + switch (cmd) { + case SET_KEY: + ret = rtw89_cam_sec_key_add(rtwdev, vif, sta, key); + if (ret) { + rtw89_err(rtwdev, "failed to add key to sec cam\n"); + goto out; + } + break; + case DISABLE_KEY: + rtw89_mac_flush_txq(rtwdev, BIT(rtwdev->hw->queues) - 1, false); + ret = rtw89_cam_sec_key_del(rtwdev, vif, sta, key); + if (ret) { + rtw89_err(rtwdev, "failed to remove key from sec cam\n"); + goto out; + } + break; + } + +out: + mutex_unlock(&rtwdev->mutex); + + return ret; +} + +static int rtw89_ops_ampdu_action(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_ampdu_params *params) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct ieee80211_sta *sta = params->sta; + struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv; + u16 tid = params->tid; + struct ieee80211_txq *txq = sta->txq[tid]; + struct rtw89_txq *rtwtxq = (struct rtw89_txq *)txq->drv_priv; + + switch (params->action) { + case IEEE80211_AMPDU_TX_START: + return IEEE80211_AMPDU_TX_START_IMMEDIATE; + case IEEE80211_AMPDU_TX_STOP_CONT: + case IEEE80211_AMPDU_TX_STOP_FLUSH: + case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: + clear_bit(RTW89_TXQ_F_AMPDU, &rtwtxq->flags); + rtw89_fw_h2c_ba_cam(rtwdev, false, rtwsta->mac_id, params); + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); + break; + case IEEE80211_AMPDU_TX_OPERATIONAL: + set_bit(RTW89_TXQ_F_AMPDU, &rtwtxq->flags); + rtwsta->ampdu_params[tid].agg_num = params->buf_size; + rtwsta->ampdu_params[tid].amsdu = params->amsdu; + rtw89_fw_h2c_ba_cam(rtwdev, true, rtwsta->mac_id, params); + break; + case IEEE80211_AMPDU_RX_START: + case IEEE80211_AMPDU_RX_STOP: + break; + default: + WARN_ON(1); + return -ENOTSUPP; + } + + return 0; +} + +static int rtw89_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value) +{ + return 0; +} + +static void rtw89_ops_sta_statistics(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct station_info *sinfo) +{ + struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv; + + sinfo->txrate = rtwsta->ra_report.txrate; + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); +} + +static void rtw89_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u32 queues, bool drop) +{ + struct rtw89_dev *rtwdev = hw->priv; + + mutex_lock(&rtwdev->mutex); + rtw89_mac_flush_txq(rtwdev, queues, drop); + mutex_unlock(&rtwdev->mutex); +} + +static void rtw89_ops_sw_scan_start(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + const u8 *mac_addr) +{ + struct rtw89_dev *rtwdev = hw->priv; + struct rtw89_hal *hal = &rtwdev->hal; + + rtw89_btc_ntfy_scan_start(rtwdev, RTW89_PHY_0, hal->current_band_type); +} + +static void rtw89_ops_sw_scan_complete(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct rtw89_dev *rtwdev = hw->priv; + + rtw89_btc_ntfy_scan_finish(rtwdev, RTW89_PHY_0); +} + +const struct ieee80211_ops rtw89_ops = { + .tx = rtw89_ops_tx, + .wake_tx_queue = rtw89_ops_wake_tx_queue, + .start = rtw89_ops_start, + .stop = rtw89_ops_stop, + .config = rtw89_ops_config, + .add_interface = rtw89_ops_add_interface, + .remove_interface = rtw89_ops_remove_interface, + .configure_filter = rtw89_ops_configure_filter, + .bss_info_changed = rtw89_ops_bss_info_changed, + .conf_tx = rtw89_ops_conf_tx, + .sta_state = rtw89_ops_sta_state, + .set_key = rtw89_ops_set_key, + .ampdu_action = rtw89_ops_ampdu_action, + .set_rts_threshold = rtw89_ops_set_rts_threshold, + .sta_statistics = rtw89_ops_sta_statistics, + .flush = rtw89_ops_flush, + .sw_scan_start = rtw89_ops_sw_scan_start, + .sw_scan_complete = rtw89_ops_sw_scan_complete, +}; +EXPORT_SYMBOL(rtw89_ops);