From patchwork Tue May 21 17:18:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nemanov, Michael" X-Patchwork-Id: 13669587 X-Patchwork-Delegate: kvalo@adurom.com Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (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 7CDBB149C64; Tue, 21 May 2024 17:19:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.142 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716311974; cv=none; b=G1xSVItlKkUmBcJ7pLVWoNGyg830ETZRTrOee1Q0ZzVgUhnMXntWxbZEMAEPnQJfG+wTvPfD4L2OQQOq02XA28O7esDWy33dUDk8zavRLOVAcN1vnuciQWRKXbgHrp7CENkxnM3vVJBkXZ00Guc46IoU4iaxxWgvgfh/bE+PanM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716311974; c=relaxed/simple; bh=rbuJjiFlfSpF4K7JSIk4gsw/IW5Q2gmw1pn7Jlav54s=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZXqA02UxvjNqruMtT9ScPRYiDE+Q+M9/xrUR1SHLfD0HiiAnAInK1iLKVxeQD+Q/2ZbrSmfroiOYCxQ42zYQpmtHqWehJdwBDzQMS0QT3ekz1B9DzPGQT5NrJ1BugESWpQruI4rnO8nf0jxpCNTho6VhKIUDFadBM9LJJQvhU0k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=Iv+NL5I9; arc=none smtp.client-ip=198.47.19.142 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Iv+NL5I9" Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 44LHJGgh090438; Tue, 21 May 2024 12:19:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1716311956; bh=dDqcL+5GIENqz8ivIKBixmIwM+Qnc9TgD7JD7Cz9XTI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Iv+NL5I9v4nELYCc286lf0btkHS5w20u37QtZDy47HP80rc73dzgp0MYZKkxotvSo rF1QspjiCBRmA7dYbcPGVbbM1tpiMpg/OX3Son1r3o+2uMKaTSB01uERwQ5JsaZ2nK qOmeVXJoyG3XZuYa9JB0w9/z6JrCjmIGwpjYb+6U= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 44LHJGoU015180 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 21 May 2024 12:19:16 -0500 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 21 May 2024 12:19:16 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 21 May 2024 12:19:16 -0500 Received: from localhost (uda0389739.dhcp.ti.com [137.167.1.114]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 44LHJFw0023550; Tue, 21 May 2024 12:19:15 -0500 From: To: Kalle Valo , Johannes Berg , Breno Leitao , Justin Stitt , Kees Cook , , CC: Sabeeh Khan , Michael Nemanov , Michael Nemanov Subject: [PATCH 14/17] Add ps.c, ps.h Date: Tue, 21 May 2024 20:18:38 +0300 Message-ID: <20240521171841.884576-15-michael.nemanov@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240521171841.884576-1-michael.nemanov@ti.com> References: <20240521171841.884576-1-michael.nemanov@ti.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 From: Michael Nemanov 80211 power-save modes are handled automictically by HW but can be overridden here. Signed-off-by: Michael Nemanov --- drivers/net/wireless/ti/cc33xx/ps.c | 117 ++++++++++++++++++++++++++++ drivers/net/wireless/ti/cc33xx/ps.h | 16 ++++ 2 files changed, 133 insertions(+) create mode 100644 drivers/net/wireless/ti/cc33xx/ps.c create mode 100644 drivers/net/wireless/ti/cc33xx/ps.h diff --git a/drivers/net/wireless/ti/cc33xx/ps.c b/drivers/net/wireless/ti/cc33xx/ps.c new file mode 100644 index 000000000000..e708ef8d5f46 --- /dev/null +++ b/drivers/net/wireless/ti/cc33xx/ps.c @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2022-2024 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#include "ps.h" +#include "tx.h" +#include "debug.h" + +int cc33xx_ps_set_mode(struct cc33xx *cc, struct cc33xx_vif *wlvif, + enum cc33xx_cmd_ps_mode_e mode) +{ + int ret; + u16 timeout = cc->conf.host_conf.conn.dynamic_ps_timeout; + + switch (mode) { + case STATION_AUTO_PS_MODE: + case STATION_POWER_SAVE_MODE: + cc33xx_debug(DEBUG_PSM, "entering psm (mode=%d,timeout=%u)", + mode, timeout); + + ret = cc33xx_cmd_ps_mode(cc, wlvif, mode, timeout); + if (ret < 0) + return ret; + + set_bit(WLVIF_FLAG_IN_PS, &wlvif->flags); + break; + + case STATION_ACTIVE_MODE: + cc33xx_debug(DEBUG_PSM, "leaving psm"); + + ret = cc33xx_cmd_ps_mode(cc, wlvif, mode, 0); + if (ret < 0) + return ret; + + clear_bit(WLVIF_FLAG_IN_PS, &wlvif->flags); + break; + + default: + cc33xx_warning("trying to set ps to unsupported mode %d", mode); + ret = -EINVAL; + } + + return ret; +} + +static void cc33xx_ps_filter_frames(struct cc33xx *cc, u8 hlid) +{ + int i; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + unsigned long flags; + int filtered[NUM_TX_QUEUES]; + struct cc33xx_link *lnk = &cc->links[hlid]; + + /* filter all frames currently in the low level queues for this hlid */ + for (i = 0; i < NUM_TX_QUEUES; i++) { + filtered[i] = 0; + while ((skb = skb_dequeue(&lnk->tx_queue[i]))) { + filtered[i]++; + + if (WARN_ON(cc33xx_is_dummy_packet(cc, skb))) + continue; + + info = IEEE80211_SKB_CB(skb); + info->flags |= IEEE80211_TX_STAT_TX_FILTERED; + info->status.rates[0].idx = -1; + ieee80211_tx_status_ni(cc->hw, skb); + } + } + + spin_lock_irqsave(&cc->cc_lock, flags); + for (i = 0; i < NUM_TX_QUEUES; i++) { + cc->tx_queue_count[i] -= filtered[i]; + if (lnk->wlvif) + lnk->wlvif->tx_queue_count[i] -= filtered[i]; + } + + spin_unlock_irqrestore(&cc->cc_lock, flags); + cc33xx_handle_tx_low_watermark(cc); +} + +void cc33xx_ps_link_start(struct cc33xx *cc, struct cc33xx_vif *wlvif, + u8 hlid, bool clean_queues) +{ + struct ieee80211_sta *sta; + struct ieee80211_vif *vif = cc33xx_wlvif_to_vif(wlvif); + + if (WARN_ON_ONCE(wlvif->bss_type != BSS_TYPE_AP_BSS)) + return; + + if (!test_bit(hlid, wlvif->ap.sta_hlid_map) || + test_bit(hlid, &cc->ap_ps_map)) + return; + + cc33xx_debug(DEBUG_PSM, + "start mac80211 PSM on hlid %d pkts %d clean_queues %d", + hlid, cc->links[hlid].allocated_pkts, clean_queues); + + rcu_read_lock(); + sta = ieee80211_find_sta(vif, cc->links[hlid].addr); + if (!sta) { + cc33xx_error("could not find sta %pM for starting ps", + cc->links[hlid].addr); + rcu_read_unlock(); + return; + } + + ieee80211_sta_ps_transition_ni(sta, true); + rcu_read_unlock(); + + /* do we want to filter all frames from this link's queues? */ + if (clean_queues) + cc33xx_ps_filter_frames(cc, hlid); + + __set_bit(hlid, &cc->ap_ps_map); +} diff --git a/drivers/net/wireless/ti/cc33xx/ps.h b/drivers/net/wireless/ti/cc33xx/ps.h new file mode 100644 index 000000000000..47f65b684b52 --- /dev/null +++ b/drivers/net/wireless/ti/cc33xx/ps.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only + * + * Copyright (C) 2022-2024 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifndef __PS_H__ +#define __PS_H__ + +#include "acx.h" + +int cc33xx_ps_set_mode(struct cc33xx *cc, struct cc33xx_vif *wlvif, + enum cc33xx_cmd_ps_mode_e mode); +void cc33xx_ps_link_start(struct cc33xx *cc, struct cc33xx_vif *wlvif, + u8 hlid, bool clean_queues); + +#endif /* __PS_H__ */