From patchwork Sat Jan 7 15:00:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 640551 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C850C54EBC for ; Sat, 7 Jan 2023 15:01:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232588AbjAGPBk (ORCPT ); Sat, 7 Jan 2023 10:01:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232532AbjAGPBV (ORCPT ); Sat, 7 Jan 2023 10:01:21 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BC6D41657; Sat, 7 Jan 2023 07:01:20 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id EAE6260C28; Sat, 7 Jan 2023 15:01:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06C7FC433EF; Sat, 7 Jan 2023 15:01:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673103679; bh=f9+/OXo5OcBsnHlOPA59pfXVLMT8hpDm1N4YQ7dZ+PQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CmBonqqsqcwczIjtKbKo508rtlJMgqQvBR49PgOn13+UunH3H03g0uZo6wTHwgE2U BFbcsB62bZenFnBFPdWuFuTOVO508XHWzPwjq3BJvKzzXMMzJAHkhkkVPu0h9U4GE0 S4aKUNcpRuase/OmdnysiFGtfgXH5ws1CyAITRKYZtEMljm6VEnoGcp6zC/On6Nixu x2StR8FEe+ZnppMqSapdaL9mTujMQ1kXRKIB54iscZWQIxINdcGikdObfJxt9ol4Os f27Q00YawWRDo5283rp1QOHZpDWDLztBQCtQrwQvB62yGN5dn3IuexqdTWO7mR19wl fg0G8dg1QqV7w== From: Lorenzo Bianconi To: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org, lorenzo.bianconi@redhat.com, nbd@nbd.name, sujuan.chen@mediatek.com, daniel@makrotopia.org, leon@kernel.org Subject: [PATCH 3/4] wifi: mt76: mt7915: add mt7915 wed reset callbacks Date: Sat, 7 Jan 2023 16:00:38 +0100 Message-Id: X-Mailer: git-send-email 2.39.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Introduce mt7915_mmio_wed_reset_complete and mt7915_mmio_wed_reset_complete callbacks and the related wait queues in order to wait for wed reset completion during wlan reset. Tested-by: Daniel Golle Co-developed-by: Sujuan Chen Signed-off-by: Sujuan Chen Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 2 + drivers/net/wireless/mediatek/mt76/mt76.h | 3 ++ .../net/wireless/mediatek/mt76/mt7915/dma.c | 15 +++++++ .../net/wireless/mediatek/mt76/mt7915/mmio.c | 42 +++++++++++++++++++ 4 files changed, 62 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 93c42082f1c2..714becbbefea 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -922,6 +922,8 @@ mt76_dma_init(struct mt76_dev *dev, snprintf(dev->napi_dev.name, sizeof(dev->napi_dev.name), "%s", wiphy_name(dev->hw->wiphy)); dev->napi_dev.threaded = 1; + init_completion(&dev->mmio.wed_reset); + init_completion(&dev->mmio.wed_reset_complete); mt76_for_each_q_rx(dev, i) { netif_napi_add(&dev->napi_dev, &dev->napi[i], poll); diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 9037780f9e88..8abc6ecd7b68 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -413,6 +413,7 @@ enum { MT76_STATE_SUSPEND, MT76_STATE_ROC, MT76_STATE_PM, + MT76_STATE_WED_RESET, }; struct mt76_hw_cap { @@ -591,6 +592,8 @@ struct mt76_mmio { u32 irqmask; struct mtk_wed_device wed; + struct completion wed_reset; + struct completion wed_reset_complete; }; struct mt76_rx_status { diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c index e3fa064918bf..a956e2a0be4f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c @@ -559,6 +559,20 @@ int mt7915_dma_init(struct mt7915_dev *dev, struct mt7915_phy *phy2) return 0; } +static void mt7915_dma_wed_reset(struct mt7915_dev *dev) +{ + struct mt76_dev *mdev = &dev->mt76; + + if (!test_bit(MT76_STATE_WED_RESET, &dev->mphy.state)) + return; + + complete(&mdev->mmio.wed_reset); + + if (!wait_for_completion_timeout(&dev->mt76.mmio.wed_reset_complete, + 3 * HZ)) + dev_err(dev->mt76.dev, "wed reset complete timeout\n"); +} + int mt7915_dma_reset(struct mt7915_dev *dev, bool force) { struct mt76_phy *mphy_ext = dev->mt76.phys[MT_BAND1]; @@ -582,6 +596,7 @@ int mt7915_dma_reset(struct mt7915_dev *dev, bool force) mt7915_wfsys_reset(dev); mt7915_dma_disable(dev, force); + mt7915_dma_wed_reset(dev); /* reset hw queues */ for (i = 0; i < __MT_TXQ_MAX; i++) { diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c index 76de0ca22c2a..cf2f66eaf3db 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c @@ -4,10 +4,12 @@ #include #include #include +#include #include #include "mt7915.h" #include "mac.h" +#include "mcu.h" #include "../trace.h" #include "../dma.h" @@ -695,6 +697,44 @@ static void mt7915_mmio_wed_update_rx_stats(struct mtk_wed_device *wed, rcu_read_unlock(); } + +static int mt7915_mmio_wed_reset(struct mtk_wed_device *wed) +{ + struct mt76_dev *mdev = container_of(wed, struct mt76_dev, mmio.wed); + struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); + struct mt76_phy *mphy = &dev->mphy; + int ret; + + ASSERT_RTNL(); + + if (test_and_set_bit(MT76_STATE_WED_RESET, &mphy->state)) + return -EBUSY; + + ret = mt7915_mcu_set_ser(dev, SER_RECOVER, SER_SET_RECOVER_L1, + mphy->band_idx); + if (ret) + goto out; + + rtnl_unlock(); + if (!wait_for_completion_timeout(&mdev->mmio.wed_reset, 20 * HZ)) { + dev_err(mdev->dev, "wed reset timeout\n"); + ret = -ETIMEDOUT; + } + rtnl_lock(); +out: + clear_bit(MT76_STATE_WED_RESET, &mphy->state); + + return ret; +} + +static int mt7915_mmio_wed_reset_complete(struct mtk_wed_device *wed) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + + complete(&dev->mmio.wed_reset_complete); + + return 0; +} #endif int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr, @@ -777,6 +817,8 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr, wed->wlan.init_rx_buf = mt7915_mmio_wed_init_rx_buf; wed->wlan.release_rx_buf = mt7915_mmio_wed_release_rx_buf; wed->wlan.update_wo_rx_stats = mt7915_mmio_wed_update_rx_stats; + wed->wlan.reset = mt7915_mmio_wed_reset; + wed->wlan.reset_complete = mt7915_mmio_wed_reset_complete; dev->mt76.rx_token_size = wed->wlan.rx_npkt;