From patchwork Sun Apr 18 16:36:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12210213 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 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,UNPARSEABLE_RELAY,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 DE0C7C43460 for ; Sun, 18 Apr 2021 16:36:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A9D0761003 for ; Sun, 18 Apr 2021 16:36:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231916AbhDRQgr (ORCPT ); Sun, 18 Apr 2021 12:36:47 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:58382 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229986AbhDRQgm (ORCPT ); Sun, 18 Apr 2021 12:36:42 -0400 X-UUID: 07f1dfdf9f714e2583b59a025f1c5137-20210419 X-UUID: 07f1dfdf9f714e2583b59a025f1c5137-20210419 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1247288487; Mon, 19 Apr 2021 00:36:11 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 19 Apr 2021 00:36:09 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 19 Apr 2021 00:36:09 +0800 From: To: , CC: , , , , , , , , , , , , , Lorenzo Bianconi Subject: [PATCH 2/6] mt76: mt7921: introduce mt7921_wpdma_reset utility routine Date: Mon, 19 Apr 2021 00:36:03 +0800 Message-ID: <1618763767-1292-3-git-send-email-sean.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1618763767-1292-1-git-send-email-sean.wang@mediatek.com> References: <1618763767-1292-1-git-send-email-sean.wang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 1190F3372CE1623453E10CF1209356AAFC9DA8B0D499F1F3618925B7F7841EAC2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Lorenzo Bianconi Introduce mt7921_wpdma_reset routine to reset wpdma during chip reset or driver_own request. Signed-off-by: Sean Wang Signed-off-by: Lorenzo Bianconi --- .../net/wireless/mediatek/mt76/mt7921/dma.c | 44 ++++++++++++++++++- .../net/wireless/mediatek/mt76/mt7921/mac.c | 29 ++---------- .../wireless/mediatek/mt76/mt7921/mt7921.h | 2 +- 3 files changed, 47 insertions(+), 28 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/dma.c b/drivers/net/wireless/mediatek/mt76/mt7921/dma.c index f8815aa247eb..4aad355f8394 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/dma.c @@ -206,7 +206,7 @@ static int mt7921_dmashdl_disabled(struct mt7921_dev *dev) return 0; } -int mt7921_dma_reset(struct mt7921_dev *dev, bool force) +static int mt7921_dma_reset(struct mt7921_dev *dev, bool force) { int i; @@ -277,6 +277,48 @@ int mt7921_dma_reset(struct mt7921_dev *dev, bool force) return 0; } +int mt7921_wfsys_reset(struct mt7921_dev *dev) +{ + mt76_set(dev, 0x70002600, BIT(0)); + msleep(200); + mt76_clear(dev, 0x70002600, BIT(0)); + + if (!__mt76_poll_msec(&dev->mt76, MT_WFSYS_SW_RST_B, + WFSYS_SW_INIT_DONE, WFSYS_SW_INIT_DONE, 500)) + return -ETIMEDOUT; + + return 0; +} + +int mt7921_wpdma_reset(struct mt7921_dev *dev, bool force) +{ + int i, err; + + /* clean up hw queues */ + for (i = 0; i < ARRAY_SIZE(dev->mt76.phy.q_tx); i++) + mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true); + + for (i = 0; i < ARRAY_SIZE(dev->mt76.q_mcu); i++) + mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[i], true); + + mt76_for_each_q_rx(&dev->mt76, i) + mt76_queue_rx_cleanup(dev, &dev->mt76.q_rx[i]); + + if (force) { + err = mt7921_wfsys_reset(dev); + if (err) + return err; + } + err = mt7921_dma_reset(dev, force); + if (err) + return err; + + mt76_for_each_q_rx(&dev->mt76, i) + mt76_queue_rx_reset(dev, i); + + return 0; +} + int mt7921_dma_init(struct mt7921_dev *dev) { /* Increase buffer size to receive large VHT/HE MPDUs */ diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 4e319f1521a6..6e89cd41641e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1210,16 +1210,6 @@ void mt7921_update_channel(struct mt76_dev *mdev) mt76_connac_power_save_sched(&dev->mphy, &dev->pm); } -int mt7921_wfsys_reset(struct mt7921_dev *dev) -{ - mt76_set(dev, 0x70002600, BIT(0)); - msleep(200); - mt76_clear(dev, 0x70002600, BIT(0)); - - return __mt76_poll_msec(&dev->mt76, MT_WFSYS_SW_RST_B, - WFSYS_SW_INIT_DONE, WFSYS_SW_INIT_DONE, 500); -} - void mt7921_tx_token_put(struct mt7921_dev *dev) { struct mt76_txwi_cache *txwi; @@ -1279,21 +1269,11 @@ mt7921_mac_reset(struct mt7921_dev *dev) mt7921_tx_token_put(dev); idr_init(&dev->token); - /* clean up hw queues */ - for (i = 0; i < ARRAY_SIZE(dev->mt76.phy.q_tx); i++) - mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true); - - for (i = 0; i < ARRAY_SIZE(dev->mt76.q_mcu); i++) - mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[i], true); - - mt76_for_each_q_rx(&dev->mt76, i) - mt76_queue_rx_cleanup(dev, &dev->mt76.q_rx[i]); - - mt7921_wfsys_reset(dev); - mt7921_dma_reset(dev, true); + err = mt7921_wpdma_reset(dev, true); + if (err) + return err; mt76_for_each_q_rx(&dev->mt76, i) { - mt76_queue_rx_reset(dev, i); napi_enable(&dev->mt76.napi[i]); napi_schedule(&dev->mt76.napi[i]); } @@ -1306,9 +1286,6 @@ mt7921_mac_reset(struct mt7921_dev *dev) mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0); mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); - mt7921_irq_enable(dev, - MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL | - MT_INT_MCU_CMD); err = mt7921_run_firmware(dev); if (err) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h index 9b476641616d..06a85d2d1c6f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h @@ -253,7 +253,7 @@ int mt7921_eeprom_get_target_power(struct mt7921_dev *dev, u8 chain_idx); void mt7921_eeprom_init_sku(struct mt7921_dev *dev); int mt7921_dma_init(struct mt7921_dev *dev); -int mt7921_dma_reset(struct mt7921_dev *dev, bool force); +int mt7921_wpdma_reset(struct mt7921_dev *dev, bool force); void mt7921_dma_cleanup(struct mt7921_dev *dev); int mt7921_run_firmware(struct mt7921_dev *dev); int mt7921_mcu_init(struct mt7921_dev *dev);