From patchwork Wed May 11 23:06:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12846702 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9F7AC433FE for ; Wed, 11 May 2022 23:06:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348991AbiEKXGt (ORCPT ); Wed, 11 May 2022 19:06:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348992AbiEKXGr (ORCPT ); Wed, 11 May 2022 19:06:47 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F28C58E78 for ; Wed, 11 May 2022 16:06:46 -0700 (PDT) X-UUID: a699043d41874012a1ac4fa8184518d5-20220512 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4,REQID:b8fdebb4-7d1f-4cde-a936-682c15338f09,OB:0,LO B:0,IP:0,URL:35,TC:0,Content:-20,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,A CTION:release,TS:15 X-CID-META: VersionHash:faefae9,CLOUDID:bd4d24e6-38f2-431d-8de7-bf8fac490b0a,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,File:nil,QS:0,BEC:nil X-UUID: a699043d41874012a1ac4fa8184518d5-20220512 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1481564193; Thu, 12 May 2022 07:06:40 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Thu, 12 May 2022 07:06:39 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 12 May 2022 07:06:39 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Thu, 12 May 2022 07:06:39 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , "Deren Wu" , Ming Yen Hsieh Subject: [PATCH v2 2/2] mt76: mt7921: add ipv6 NS offload support Date: Thu, 12 May 2022 07:06:36 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <51d96f159ec37c2610d3c444177508ffc7781e2c.1652310294.git.objelf@gmail.com> References: <51d96f159ec37c2610d3c444177508ffc7781e2c.1652310294.git.objelf@gmail.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Deren Wu Add ipv6 NS offload for WoWLAN state. Tested in this way: 1. Put device-A into WoW state. 2. ping6 from device-B to device-A. 3. In sniffer, see Neighbour advertisement from device-A. Reviewed-by: Sean Wang Signed-off-by: Deren Wu Signed-off-by: Ming Yen Hsieh --- v2: fix we cannot allocate skb with GFP_KERNEL in softirq context --- .../net/wireless/mediatek/mt76/mt7921/init.c | 4 ++ .../net/wireless/mediatek/mt76/mt7921/mac.c | 26 +++++++ .../net/wireless/mediatek/mt76/mt7921/main.c | 67 ++++++++++++++++++- .../net/wireless/mediatek/mt76/mt7921/mcu.c | 44 ++++++++++++ .../wireless/mediatek/mt76/mt7921/mt7921.h | 8 +++ 5 files changed, 148 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index f9e1255bd9c7..4a8675634f80 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -264,6 +264,10 @@ int mt7921_register_device(struct mt7921_dev *dev) INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); +#if IS_ENABLED(CONFIG_IPV6) + INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work); + skb_queue_head_init(&dev->ipv6_ns_list); +#endif skb_queue_head_init(&dev->phy.scan_event_list); skb_queue_head_init(&dev->coredump.msg_list); INIT_LIST_HEAD(&dev->sta_poll_list); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index e67c3d17d36c..a630ddbf19e5 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1726,3 +1726,29 @@ bool mt7921_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) return false; } EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_status_data); + +#if IS_ENABLED(CONFIG_IPV6) +void mt7921_set_ipv6_ns_work(struct work_struct *work) +{ + struct mt7921_dev *dev = container_of(work, struct mt7921_dev, + ipv6_ns_work); + struct sk_buff *skb; + int ret = 0; + + do { + skb = skb_dequeue(&dev->ipv6_ns_list); + + if (!skb) + break; + + mt7921_mutex_acquire(dev); + ret = mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_UNI_CMD(OFFLOAD), true); + mt7921_mutex_release(dev); + + } while (!ret); + + if (ret) + skb_queue_purge(&dev->ipv6_ns_list); +} +#endif diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c index e3db08e3a79f..80279f342109 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c @@ -5,6 +5,7 @@ #include #include #include +#include #include "mt7921.h" #include "mcu.h" @@ -1332,7 +1333,7 @@ static int mt7921_suspend(struct ieee80211_hw *hw, clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL, - mt76_connac_mcu_set_suspend_iter, + mt7921_mcu_set_suspend_iter, &dev->mphy); mt7921_mutex_release(dev); @@ -1407,6 +1408,67 @@ static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, MCU_UNI_CMD(STA_REC_UPDATE)); } +#if IS_ENABLED(CONFIG_IPV6) +static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct inet6_dev *idev) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct mt7921_dev *dev = mvif->phy->dev; + struct inet6_ifaddr *ifa; + struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; + struct sk_buff *skb; + u8 i, idx = 0; + + struct { + struct { + u8 bss_idx; + u8 pad[3]; + } __packed hdr; + struct mt76_connac_arpns_tlv arpns; + } req_hdr = { + .hdr = { + .bss_idx = mvif->mt76.idx, + }, + .arpns = { + .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), + .mode = 2, /* update */ + .option = 1, /* update only */ + }, + }; + + read_lock_bh(&idev->lock); + list_for_each_entry(ifa, &idev->addr_list, if_list) { + if (ifa->flags & IFA_F_TENTATIVE) + continue; + ns_addrs[idx] = ifa->addr; + if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN) + break; + } + read_unlock_bh(&idev->lock); + + if (!idx) + return; + + skb = __mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req_hdr) + + idx * sizeof(struct in6_addr), GFP_ATOMIC); + if (!skb) + return; + + req_hdr.arpns.ips_num = idx; + req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv) + + idx * sizeof(struct in6_addr)); + skb_put_data(skb, &req_hdr, sizeof(req_hdr)); + + for (i = 0; i < idx; i++) + skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr)); + + skb_queue_tail(&dev->ipv6_ns_list, skb); + + ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work); +} +#endif + static int mt7921_set_sar_specs(struct ieee80211_hw *hw, const struct cfg80211_sar_specs *sar) { @@ -1452,6 +1514,9 @@ const struct ieee80211_ops mt7921_ops = { .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, .set_key = mt7921_set_key, .sta_set_decap_offload = mt7921_sta_set_decap_offload, +#if IS_ENABLED(CONFIG_IPV6) + .ipv6_addr_change = mt7921_ipv6_addr_change, +#endif /* CONFIG_IPV6 */ .ampdu_action = mt7921_ampdu_action, .set_rts_threshold = mt7921_set_rts_threshold, .wake_tx_queue = mt76_wake_tx_queue, diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 1ecbbe4fa498..ee3c2c09cd27 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -224,6 +224,50 @@ int mt7921_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb, } EXPORT_SYMBOL_GPL(mt7921_mcu_fill_message); +#ifdef CONFIG_PM + +static int +mt7921_mcu_set_ipv6_ns_filter(struct mt76_dev *dev, + struct ieee80211_vif *vif, bool suspend) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct { + struct { + u8 bss_idx; + u8 pad[3]; + } __packed hdr; + struct mt76_connac_arpns_tlv arpns; + } req = { + .hdr = { + .bss_idx = mvif->mt76.idx, + }, + .arpns = { + .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), + .len = + cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)), + .mode = suspend, + }, + }; + + return mt76_mcu_send_msg(dev, MCU_UNI_CMD_OFFLOAD, &req, sizeof(req), + true); +} + +void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) +{ + if (IS_ENABLED(CONFIG_IPV6)) { + struct mt76_phy *phy = priv; + + mt7921_mcu_set_ipv6_ns_filter(phy->dev, vif, + !test_bit(MT76_STATE_RUNNING, + &phy->state)); + } + + mt76_connac_mcu_set_suspend_iter(priv, mac, vif); +} + +#endif /* CONFIG_PM */ + static void mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb) { diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h index adbdb2e22934..5ca584bb2fc6 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h @@ -211,6 +211,10 @@ struct mt7921_dev { struct mt76_connac_pm pm; struct mt76_connac_coredump coredump; const struct mt7921_hif_ops *hif_ops; + + struct work_struct ipv6_ns_work; + /* IPv6 addresses for WoWLAN */ + struct sk_buff_head ipv6_ns_list; }; enum { @@ -449,6 +453,10 @@ int mt7921s_mcu_drv_pmctrl(struct mt7921_dev *dev); int mt7921s_mcu_fw_pmctrl(struct mt7921_dev *dev); void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data); void mt7921_set_runtime_pm(struct mt7921_dev *dev); +void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac, + struct ieee80211_vif *vif); +void mt7921_set_ipv6_ns_work(struct work_struct *work); + int mt7921_mcu_set_sniffer(struct mt7921_dev *dev, struct ieee80211_vif *vif, bool enable);