From patchwork Wed Jan 27 19:33:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 372150 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=-16.7 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, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 4156BC433E6 for ; Wed, 27 Jan 2021 19:47:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 03CB764DA3 for ; Wed, 27 Jan 2021 19:47:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344482AbhA0Tks (ORCPT ); Wed, 27 Jan 2021 14:40:48 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:43364 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1344545AbhA0TgD (ORCPT ); Wed, 27 Jan 2021 14:36:03 -0500 X-UUID: 1de4e96ff8ed4134b560e5dcd1adb9f5-20210128 X-UUID: 1de4e96ff8ed4134b560e5dcd1adb9f5-20210128 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.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 109639921; Thu, 28 Jan 2021 03:34:03 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 28 Jan 2021 03:34:02 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 28 Jan 2021 03:34:02 +0800 From: To: , CC: , , , , , , , , , , , Lorenzo Bianconi Subject: [PATCH -next v8 20/20] mt76: mt7663: introduce coredump support Date: Thu, 28 Jan 2021 03:33:57 +0800 Message-ID: <5063091713e76355ec0dd5bfd00079350e190f7f.1611774181.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Lorenzo Bianconi Similar to mt7921 devices, introduce coredump support for mt7663 chipset Co-developed-by: Sean Wang Signed-off-by: Sean Wang Signed-off-by: Lorenzo Bianconi --- .../net/wireless/mediatek/mt76/mt7615/Kconfig | 1 + .../wireless/mediatek/mt76/mt7615/debugfs.c | 17 ++++++++ .../net/wireless/mediatek/mt76/mt7615/init.c | 2 + .../net/wireless/mediatek/mt76/mt7615/mac.c | 43 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7615/mcu.c | 5 +++ .../net/wireless/mediatek/mt76/mt7615/mcu.h | 1 + .../wireless/mediatek/mt76/mt7615/mt7615.h | 4 +- 7 files changed, 72 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig b/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig index 5418bc96ee3b..30fba36ff46b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig +++ b/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig @@ -2,6 +2,7 @@ config MT7615_COMMON tristate + select WANT_DEV_COREDUMP select MT76_CONNAC_LIB config MT7615E diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c index 4d5e3f8b2a62..7ae48b4fa564 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c @@ -21,6 +21,20 @@ mt7615_radar_pattern_set(void *data, u64 val) DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_pattern, NULL, mt7615_radar_pattern_set, "%lld\n"); +static int mt7615_config(void *data, u64 val) +{ + struct mt7615_dev *dev = data; + int ret; + + mt7615_mutex_acquire(dev); + ret = mt76_connac_mcu_chip_config(&dev->mt76); + mt7615_mutex_release(dev); + + return ret; +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7615_config, "%lld\n"); + static int mt7615_scs_set(void *data, u64 val) { @@ -525,6 +539,9 @@ int mt7615_init_debugfs(struct mt7615_dev *dev) debugfs_create_u32("rf_regidx", 0600, dir, &dev->debugfs_rf_reg); debugfs_create_file_unsafe("rf_regval", 0600, dir, dev, &fops_rf_reg); + if (is_mt7663(&dev->mt76)) + debugfs_create_file("chip_config", 0600, dir, dev, + &fops_config); if (mt76_is_sdio(&dev->mt76)) debugfs_create_devm_seqfile(dev->mt76.dev, "sched-quota", dir, mt7663s_sched_quota_read); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index b994da51b48d..a10ba2377240 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -488,7 +488,9 @@ void mt7615_init_device(struct mt7615_dev *dev) set_bit(MT76_STATE_PM, &dev->mphy.state); INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7615_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7615_scan_work); + INIT_DELAYED_WORK(&dev->coredump.work, mt7615_coredump_work); skb_queue_head_init(&dev->phy.scan_event_list); + skb_queue_head_init(&dev->coredump.msg_list); INIT_LIST_HEAD(&dev->sta_poll_list); spin_lock_init(&dev->sta_poll_lock); init_waitqueue_head(&dev->reset_wait); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index 6a3e1a609852..59fdd0fc2ad4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -7,6 +7,7 @@ * Lorenzo Bianconi */ +#include #include #include #include "mt7615.h" @@ -14,6 +15,7 @@ #include "../dma.h" #include "mt7615_trace.h" #include "mac.h" +#include "mcu.h" #define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2) @@ -2272,3 +2274,44 @@ int mt7615_mac_set_beacon_filter(struct mt7615_phy *phy, return 0; } + +void mt7615_coredump_work(struct work_struct *work) +{ + struct mt7615_dev *dev; + char *dump, *data; + + dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev, + coredump.work.work); + + if (time_is_after_jiffies(dev->coredump.last_activity + + 4 * MT76_CONNAC_COREDUMP_TIMEOUT)) { + queue_delayed_work(dev->mt76.wq, &dev->coredump.work, + MT76_CONNAC_COREDUMP_TIMEOUT); + return; + } + + dump = vzalloc(MT76_CONNAC_COREDUMP_SZ); + data = dump; + + while (true) { + struct sk_buff *skb; + + spin_lock_bh(&dev->mt76.lock); + skb = __skb_dequeue(&dev->coredump.msg_list); + spin_unlock_bh(&dev->mt76.lock); + + if (!skb) + break; + + skb_pull(skb, sizeof(struct mt7615_mcu_rxd)); + if (data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) + break; + + memcpy(data, skb->data, skb->len); + data += skb->len; + + dev_kfree_skb(skb); + } + dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ, + GFP_KERNEL); +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index af2979c294e0..b418316a8446 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -543,6 +543,10 @@ mt7615_mcu_rx_unsolicited_event(struct mt7615_dev *dev, struct sk_buff *skb) case MCU_EVENT_BSS_ABSENCE: mt7615_mcu_bss_event(dev, skb); break; + case MCU_EVENT_COREDUMP: + mt76_connac_mcu_coredump_event(&dev->mt76, skb, + &dev->coredump); + return; default: break; } @@ -561,6 +565,7 @@ void mt7615_mcu_rx_event(struct mt7615_dev *dev, struct sk_buff *skb) rxd->eid == MCU_EVENT_SCHED_SCAN_DONE || rxd->eid == MCU_EVENT_BSS_ABSENCE || rxd->eid == MCU_EVENT_SCAN_DONE || + rxd->eid == MCU_EVENT_COREDUMP || rxd->eid == MCU_EVENT_ROC || !rxd->seq) mt7615_mcu_rx_unsolicited_event(dev, skb); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h index 446c6abf44d8..3874f45da9eb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h @@ -92,6 +92,7 @@ enum { MCU_EVENT_SCHED_SCAN_DONE = 0x23, MCU_EVENT_EXT = 0xed, MCU_EVENT_RESTART_DL = 0xef, + MCU_EVENT_COREDUMP = 0xf0, }; /* ext event table */ diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index 1bd79dae0171..491841bc6291 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -8,7 +8,7 @@ #include #include #include -#include "../mt76_connac.h" +#include "../mt76_connac_mcu.h" #include "regs.h" #define MT7615_MAX_INTERFACES 16 @@ -277,6 +277,7 @@ struct mt7615_dev { u32 muar_mask; struct mt76_connac_pm pm; + struct mt76_connac_coredump coredump; }; enum tx_pkt_queue_idx { @@ -554,6 +555,7 @@ int mt7615_mcu_update_arp_filter(struct ieee80211_hw *hw, int __mt7663_load_firmware(struct mt7615_dev *dev); u32 mt7615_mcu_reg_rr(struct mt76_dev *dev, u32 offset); void mt7615_mcu_reg_wr(struct mt76_dev *dev, u32 offset, u32 val); +void mt7615_coredump_work(struct work_struct *work); /* usb */ int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,