From patchwork Thu Nov 18 16:45:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Greear X-Patchwork-Id: 12627365 X-Patchwork-Delegate: nbd@nbd.name 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A858EC433F5 for ; Thu, 18 Nov 2021 16:46:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9044961266 for ; Thu, 18 Nov 2021 16:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233706AbhKRQtW (ORCPT ); Thu, 18 Nov 2021 11:49:22 -0500 Received: from dispatch1-us1.ppe-hosted.com ([67.231.154.184]:44314 "EHLO dispatch1-us1.ppe-hosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233699AbhKRQtV (ORCPT ); Thu, 18 Nov 2021 11:49:21 -0500 X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us1.ppe-hosted.com (unknown [10.110.51.167]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id EB0902A0067 for ; Thu, 18 Nov 2021 16:46:09 +0000 (UTC) Received: from mail3.candelatech.com (mail2.candelatech.com [208.74.158.173]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id B01ED240082 for ; Thu, 18 Nov 2021 16:46:09 +0000 (UTC) Received: from ben-dt4.candelatech.com (50-251-239-81-static.hfc.comcastbusiness.net [50.251.239.81]) by mail3.candelatech.com (Postfix) with ESMTP id 6859613C2B5; Thu, 18 Nov 2021 08:45:56 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 mail3.candelatech.com 6859613C2B5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=candelatech.com; s=default; t=1637253956; bh=vArxxPNXbGY3joL7CpHeqV0M9Qx2T/2xrZuPKIHS26o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rl7eumIGGBfAHMn8C9lp2qB+xmVlRQESgPD5SrcJrm0FJI/ZTyYsiKKY5XepnEOzw 9dXHEzfd0wRHcIkhgjVXzQs7LQel29CV1Brs51VLWLYidLB4az3UHFpkGujgOLzgP+ dV872EJYnaPaBf2KKuETNkqN7mH53iusbP7ald3w= From: greearb@candelatech.com To: linux-wireless@vger.kernel.org Cc: Ben Greear Subject: [PATCH 5/8] mt76: mt7915: txfree status to show txcount instead of latency Date: Thu, 18 Nov 2021 08:45:46 -0800 Message-Id: <20211118164549.3863-5-greearb@candelatech.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20211118164549.3863-1-greearb@candelatech.com> References: <20211118164549.3863-1-greearb@candelatech.com> MIME-Version: 1.0 X-MDID: 1637253970-LBfaXo9yw-DN Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Ben Greear Latency is not obviously that useful, but txcount can let us deduce retries, which may be more interesting. Signed-off-by: Ben Greear --- drivers/net/wireless/mediatek/mt76/mt7915/init.c | 3 +++ drivers/net/wireless/mediatek/mt76/mt7915/mac.h | 8 +++++--- drivers/net/wireless/mediatek/mt76/mt7915/regs.h | 8 ++++++++ 3 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index 0c41ea23d6b3..3b35ea245b33 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -401,6 +401,9 @@ static void mt7915_mac_init(struct mt7915_dev *dev) /* enable hardware de-agg */ mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); + /* disable Tx latency report to enable Tx count in txfree path */ + mt76_clear(dev, MT_PLE_HOST_RPT0, MT_PLE_HOST_RPT0_TX_LATENCY); + for (i = 0; i < MT7915_WTBL_SIZE; i++) mt7915_mac_wtbl_update(dev, i, MT_WTBL_UPDATE_ADM_COUNT_CLEAR); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h index b66e740832e4..4ba5574cc6f3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h @@ -305,13 +305,15 @@ struct mt7915_tx_free { #define MT_TX_FREE_MSDU_CNT GENMASK(9, 0) #define MT_TX_FREE_WLAN_ID GENMASK(23, 14) +/* when configured for txfree latency mode. See MT_PLE_HOST_RPT0_TX_LATENCY + * Not enabled by default now. + */ #define MT_TX_FREE_LATENCY GENMASK(12, 0) -/* 0: success, others: dropped */ +/* when configured for txcount mode. See MT_PLE_HOST_RPT0_TX_LATENCY. */ +#define MT_TX_FREE_TXCNT GENMASK(12, 0) #define MT_TX_FREE_STATUS GENMASK(14, 13) #define MT_TX_FREE_MSDU_ID GENMASK(30, 16) #define MT_TX_FREE_PAIR BIT(31) -/* will support this field in further revision */ -#define MT_TX_FREE_RATE GENMASK(13, 0) #define MT_TXS0_FIXED_RATE BIT(31) #define MT_TXS0_BW GENMASK(30, 29) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h index 59693535b098..d23c669cc933 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h @@ -22,6 +22,14 @@ #define MT_PLE_BASE 0x8000 #define MT_PLE(ofs) (MT_PLE_BASE + (ofs)) +/* Modify whether txfree struct returns latency or txcount. */ +#define MT_PLE_HOST_RPT0 MT_PLE(0x030) +#define MT_PLE_HOST_RPT0_TX_LATENCY BIT(3) + +#define MT_PLE_FL_Q0_CTRL MT_PLE(0x1b0) +#define MT_PLE_FL_Q1_CTRL MT_PLE(0x1b4) +#define MT_PLE_FL_Q2_CTRL MT_PLE(0x1b8) + #define MT_FL_Q_EMPTY 0x0b0 #define MT_FL_Q0_CTRL 0x1b0 #define MT_FL_Q2_CTRL 0x1b8