From: <sean.wang@mediatek.com>
To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com>
Cc: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>,
<YN.Chen@mediatek.com>, <robin.chiu@mediatek.com>,
<ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
<Eric.Liang@mediatek.com>, <ryder.lee@mediatek.com>,
<linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
Lorenzo Bianconi <lorenzo@kernel.org>
Subject: [PATCH -next v5 15/15] mt76: mt7921: introduce PM support
Date: Tue, 5 Jan 2021 02:00:19 +0800 [thread overview]
Message-ID: <b82d602153b75ecad239f1bcd187d15684f1df84.1609781247.git.objelf@gmail.com> (raw)
In-Reply-To: <cover.1609781247.git.objelf@gmail.com>
From: Sean Wang <sean.wang@mediatek.com>
Introduce suspend/resume and WoW (Wake-on-WoWLAN) support to mt7921
driver to allow remote wakeu-up from the suspend state.
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7921/main.c | 79 +++++
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 307 ++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 99 ++++++
.../wireless/mediatek/mt76/mt7921/mt7921.h | 9 +
.../net/wireless/mediatek/mt76/mt7921/pci.c | 95 ++++++
5 files changed, 589 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 0af5e536e5cc..390ea23c92d8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -938,6 +938,79 @@ mt7921_sta_rc_update(struct ieee80211_hw *hw,
{
}
+#ifdef CONFIG_PM
+static int mt7921_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ cancel_delayed_work_sync(&phy->scan_work);
+ cancel_delayed_work_sync(&phy->mt76->mac_work);
+
+ mutex_lock(&dev->mt76.mutex);
+
+ clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+
+ set_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7921_mcu_set_suspend_iter, phy);
+
+ err = mt7921_mcu_set_hif_suspend(dev, true);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static int mt7921_resume(struct ieee80211_hw *hw)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ err = mt7921_mcu_set_hif_suspend(dev, false);
+ if (err < 0)
+ goto out;
+
+ set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+ clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7921_mcu_set_suspend_iter, phy);
+
+ ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
+ MT7921_WATCHDOG_TIME);
+out:
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static void mt7921_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_dev *mdev = &dev->mt76;
+
+ device_set_wakeup_enable(mdev->dev, enabled);
+}
+
+static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *data)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+ mutex_lock(&dev->mt76.mutex);
+ mt7921_mcu_update_gtk_rekey(hw, vif, data);
+ mutex_unlock(&dev->mt76.mutex);
+}
+#endif /* CONFIG_PM */
+
const struct ieee80211_ops mt7921_ops = {
.tx = mt7921_tx,
.start = mt7921_start,
@@ -969,4 +1042,10 @@ const struct ieee80211_ops mt7921_ops = {
.cancel_hw_scan = mt7921_cancel_hw_scan,
.sched_scan_start = mt7921_start_sched_scan,
.sched_scan_stop = mt7921_stop_sched_scan,
+#ifdef CONFIG_PM
+ .suspend = mt7921_suspend,
+ .resume = mt7921_resume,
+ .set_wakeup = mt7921_set_wakeup,
+ .set_rekey_data = mt7921_set_rekey_data,
+#endif /* CONFIG_PM */
};
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 57f8b7b770dc..becb31e09c82 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -1704,6 +1704,15 @@ static int mt7921_load_ram(struct mt7921_dev *dev)
return ret;
}
+static const struct wiphy_wowlan_support mt7921_wowlan_support = {
+ .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
+ WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | WIPHY_WOWLAN_NET_DETECT,
+ .n_patterns = 1,
+ .pattern_min_len = 1,
+ .pattern_max_len = MT7921_WOW_PATTEN_MAX_LEN,
+ .max_nd_match_sets = 10,
+};
+
static int mt7921_load_firmware(struct mt7921_dev *dev)
{
int ret;
@@ -1731,6 +1740,10 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
+#ifdef CONFIG_PM
+ dev->mt76.hw->wiphy->wowlan = &mt7921_wowlan_support;
+#endif /* CONFIG_PM */
+
dev_err(dev->mt76.dev, "Firmware init done\n");
return 0;
@@ -2623,3 +2636,297 @@ int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_CONNECTED, &req,
sizeof(req), false);
}
+
+#ifdef CONFIG_PM
+int mt7921_mcu_set_hif_suspend(struct mt7921_dev *dev, bool suspend)
+{
+ struct {
+ struct {
+ u8 hif_type; /* 0x0: HIF_SDIO
+ * 0x1: HIF_USB
+ * 0x2: HIF_PCIE
+ */
+ u8 pad[3];
+ } __packed hdr;
+ struct hif_suspend_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 suspend;
+ } __packed hif_suspend;
+ } req = {
+ .hif_suspend = {
+ .tag = cpu_to_le16(0), /* 0: UNI_HIF_CTRL_BASIC */
+ .len = cpu_to_le16(sizeof(struct hif_suspend_tlv)),
+ .suspend = suspend,
+ },
+ };
+
+ if (mt76_is_mmio(&dev->mt76))
+ req.hdr.hif_type = 2;
+ else if (mt76_is_usb(&dev->mt76))
+ req.hdr.hif_type = 1;
+ else if (mt76_is_sdio(&dev->mt76))
+ req.hdr.hif_type = 0;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_HIF_CTRL, &req,
+ sizeof(req), true);
+}
+EXPORT_SYMBOL_GPL(mt7921_mcu_set_hif_suspend);
+
+static int
+mt7921_mcu_set_wow_ctrl(struct mt7921_phy *phy, struct ieee80211_vif *vif,
+ bool suspend, struct cfg80211_wowlan *wowlan)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = phy->dev;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7921_wow_ctrl_tlv wow_ctrl_tlv;
+ struct mt7921_wow_gpio_param_tlv gpio_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .wow_ctrl_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_WOW_CTRL),
+ .len = cpu_to_le16(sizeof(struct mt7921_wow_ctrl_tlv)),
+ .cmd = suspend ? 1 : 2,
+ },
+ .gpio_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_WOW_GPIO_PARAM),
+ .len = cpu_to_le16(sizeof(struct mt7921_wow_gpio_param_tlv)),
+ .gpio_pin = 0xff, /* follow fw about GPIO pin */
+ },
+ };
+
+ if (wowlan->magic_pkt)
+ req.wow_ctrl_tlv.trigger |= BIT(0);
+ if (wowlan->disconnect)
+ req.wow_ctrl_tlv.trigger |= BIT(2);
+ if (wowlan->nd_config) {
+ mt7921_mcu_sched_scan_req(phy, vif, wowlan->nd_config);
+ req.wow_ctrl_tlv.trigger |= BIT(5);
+ mt7921_mcu_sched_scan_enable(phy, vif, suspend);
+ }
+
+ if (mt76_is_mmio(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_PCIE;
+ else if (mt76_is_usb(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_USB;
+ else if (mt76_is_sdio(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_GPIO;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_wow_pattern(struct mt7921_dev *dev,
+ struct ieee80211_vif *vif,
+ u8 index, bool enable,
+ struct cfg80211_pkt_pattern *pattern)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_wow_pattern_tlv *ptlv;
+ struct sk_buff *skb;
+ struct req_hdr {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr = {
+ .bss_idx = mvif->idx,
+ };
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(hdr) + sizeof(*ptlv));
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put_data(skb, &hdr, sizeof(hdr));
+ ptlv = (struct mt7921_wow_pattern_tlv *)skb_put(skb, sizeof(*ptlv));
+ ptlv->tag = cpu_to_le16(UNI_SUSPEND_WOW_PATTERN);
+ ptlv->len = cpu_to_le16(sizeof(*ptlv));
+ ptlv->data_len = pattern->pattern_len;
+ ptlv->enable = enable;
+ ptlv->index = index;
+
+ memcpy(ptlv->pattern, pattern->pattern, pattern->pattern_len);
+ memcpy(ptlv->mask, pattern->mask, pattern->pattern_len / 8);
+
+ return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_SUSPEND,
+ true);
+}
+
+static int
+mt7921_mcu_set_suspend_mode(struct mt7921_dev *dev,
+ struct ieee80211_vif *vif,
+ bool enable, u8 mdtim, bool wow_suspend)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7921_suspend_tlv suspend_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .suspend_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_MODE_SETTING),
+ .len = cpu_to_le16(sizeof(struct mt7921_suspend_tlv)),
+ .enable = enable,
+ .mdtim = mdtim,
+ .wow_suspend = wow_suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_gtk_rekey(struct mt7921_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 mt7921_gtk_rekey_tlv gtk_tlv;
+ } __packed req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .gtk_tlv = {
+ .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_GTK_REKEY),
+ .len = cpu_to_le16(sizeof(struct mt7921_gtk_rekey_tlv)),
+ .rekey_mode = !suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_OFFLOAD, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_arp_filter(struct mt7921_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 mt7921_arpns_tlv arpns;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .arpns = {
+ .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ARP),
+ .len = cpu_to_le16(sizeof(struct mt7921_arpns_tlv)),
+ .mode = suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_OFFLOAD, &req,
+ sizeof(req), true);
+}
+
+void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_phy *phy = priv;
+ bool suspend = test_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ struct ieee80211_hw *hw = phy->mt76->hw;
+ struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;
+ int i;
+
+ mt7921_mcu_set_gtk_rekey(phy->dev, vif, suspend);
+ mt7921_mcu_set_arp_filter(phy->dev, vif, suspend);
+
+ mt7921_mcu_set_suspend_mode(phy->dev, vif, suspend, 1, true);
+
+ for (i = 0; i < wowlan->n_patterns; i++)
+ mt7921_mcu_set_wow_pattern(phy->dev, vif, i, suspend,
+ &wowlan->patterns[i]);
+ mt7921_mcu_set_wow_ctrl(phy, vif, suspend, wowlan);
+}
+
+static void
+mt7921_mcu_key_iter(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct ieee80211_key_conf *key,
+ void *data)
+{
+ struct mt7921_gtk_rekey_tlv *gtk_tlv = data;
+ u32 cipher;
+
+ if (key->cipher != WLAN_CIPHER_SUITE_AES_CMAC &&
+ key->cipher != WLAN_CIPHER_SUITE_CCMP &&
+ key->cipher != WLAN_CIPHER_SUITE_TKIP)
+ return;
+
+ if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
+ gtk_tlv->proto = cpu_to_le32(NL80211_WPA_VERSION_1);
+ cipher = BIT(3);
+ } else {
+ gtk_tlv->proto = cpu_to_le32(NL80211_WPA_VERSION_2);
+ cipher = BIT(4);
+ }
+
+ /* we are assuming here to have a single pairwise key */
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
+ gtk_tlv->pairwise_cipher = cpu_to_le32(cipher);
+ gtk_tlv->group_cipher = cpu_to_le32(cipher);
+ gtk_tlv->keyid = key->keyidx;
+ }
+}
+
+int mt7921_mcu_update_gtk_rekey(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *key)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_gtk_rekey_tlv *gtk_tlv;
+ struct sk_buff *skb;
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr = {
+ .bss_idx = mvif->idx,
+ };
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(hdr) + sizeof(*gtk_tlv));
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put_data(skb, &hdr, sizeof(hdr));
+ gtk_tlv = (struct mt7921_gtk_rekey_tlv *)skb_put(skb,
+ sizeof(*gtk_tlv));
+ gtk_tlv->tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_GTK_REKEY);
+ gtk_tlv->len = cpu_to_le16(sizeof(*gtk_tlv));
+ gtk_tlv->rekey_mode = 2;
+ gtk_tlv->option = 1;
+
+ rcu_read_lock();
+ ieee80211_iter_keys_rcu(hw, vif, mt7921_mcu_key_iter, gtk_tlv);
+ rcu_read_unlock();
+
+ memcpy(gtk_tlv->kek, key->kek, NL80211_KEK_LEN);
+ memcpy(gtk_tlv->kck, key->kck, NL80211_KCK_LEN);
+ memcpy(gtk_tlv->replay_ctr, key->replay_ctr, NL80211_REPLAY_CTR_LEN);
+
+ return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_OFFLOAD,
+ true);
+}
+#endif /* CONFIG_PM */
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index d6cb062619db..151a36f1b878 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -182,6 +182,105 @@ struct mt7921_mcu_uni_event {
__le32 status; /* 0: success, others: fail */
} __packed;
+enum {
+ WOW_USB = 1,
+ WOW_PCIE = 2,
+ WOW_GPIO = 3,
+};
+
+struct mt7921_wow_ctrl_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 cmd; /* 0x1: PM_WOWLAN_REQ_START
+ * 0x2: PM_WOWLAN_REQ_STOP
+ * 0x3: PM_WOWLAN_PARAM_CLEAR
+ */
+ u8 trigger; /* 0: NONE
+ * BIT(0): NL80211_WOWLAN_TRIG_MAGIC_PKT
+ * BIT(1): NL80211_WOWLAN_TRIG_ANY
+ * BIT(2): NL80211_WOWLAN_TRIG_DISCONNECT
+ * BIT(3): NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE
+ * BIT(4): BEACON_LOST
+ * BIT(5): NL80211_WOWLAN_TRIG_NET_DETECT
+ */
+ u8 wakeup_hif; /* 0x0: HIF_SDIO
+ * 0x1: HIF_USB
+ * 0x2: HIF_PCIE
+ * 0x3: HIF_GPIO
+ */
+ u8 pad;
+ u8 rsv[4];
+} __packed;
+
+struct mt7921_wow_gpio_param_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 gpio_pin;
+ u8 trigger_lvl;
+ u8 pad[2];
+ __le32 gpio_interval;
+ u8 rsv[4];
+} __packed;
+
+#define MT7921_WOW_MASK_MAX_LEN 16
+#define MT7921_WOW_PATTEN_MAX_LEN 128
+struct mt7921_wow_pattern_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 index; /* pattern index */
+ u8 enable; /* 0: disable
+ * 1: enable
+ */
+ u8 data_len; /* pattern length */
+ u8 pad;
+ u8 mask[MT7921_WOW_MASK_MAX_LEN];
+ u8 pattern[MT7921_WOW_PATTEN_MAX_LEN];
+ u8 rsv[4];
+} __packed;
+
+struct mt7921_suspend_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 enable; /* 0: suspend mode disabled
+ * 1: suspend mode enabled
+ */
+ u8 mdtim; /* LP parameter */
+ u8 wow_suspend; /* 0: update by origin policy
+ * 1: update by wow dtim
+ */
+ u8 pad[5];
+} __packed;
+
+struct mt7921_gtk_rekey_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 kek[NL80211_KEK_LEN];
+ u8 kck[NL80211_KCK_LEN];
+ u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+ u8 rekey_mode; /* 0: rekey offload enable
+ * 1: rekey offload disable
+ * 2: rekey update
+ */
+ u8 keyid;
+ u8 pad[2];
+ __le32 proto; /* WPA-RSN-WAPI-OPSN */
+ __le32 pairwise_cipher;
+ __le32 group_cipher;
+ __le32 key_mgmt; /* NONE-PSK-IEEE802.1X */
+ __le32 mgmt_group_cipher;
+ u8 option; /* 1: rekey data update without enabling offload */
+ u8 reserverd[3];
+} __packed;
+
+struct mt7921_arpns_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 mode;
+ u8 ips_num;
+ u8 option;
+ u8 pad[1];
+} __packed;
+
/* offload mcu commands */
enum {
MCU_CMD_START_HW_SCAN = MCU_CE_PREFIX | 0x03,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index 54d3d21abf91..8d3af412d75c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -365,4 +365,13 @@ u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
bool enable);
+int mt7921_mcu_set_hif_suspend(struct mt7921_dev *dev, bool suspend);
+void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif);
+int mt7921_mcu_update_gtk_rekey(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *key);
+int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info);
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 6808bc749583..202cde1b6289 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -167,11 +167,106 @@ static void mt7921_pci_remove(struct pci_dev *pdev)
pci_free_irq_vectors(pdev);
}
+#ifdef CONFIG_PM
+static int mt7921_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct mt76_dev *mdev = pci_get_drvdata(pdev);
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ bool hif_suspend;
+ int i, err;
+
+ hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state);
+ if (hif_suspend) {
+ err = mt7921_mcu_set_hif_suspend(dev, true);
+ if (err)
+ return err;
+ }
+
+ napi_disable(&mdev->tx_napi);
+ mt76_worker_disable(&mdev->tx_worker);
+
+ mt76_for_each_q_rx(mdev, i) {
+ napi_disable(&mdev->napi[i]);
+ }
+ tasklet_kill(&dev->irq_tasklet);
+
+ pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
+
+ /* wait until dma is idle */
+ mt76_poll(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_BUSY |
+ MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000);
+
+ /* put dma disabled */
+ mt76_clear(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
+
+ /* disable interrupt */
+ mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
+
+ pci_save_state(pdev);
+ err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ if (err)
+ goto restore;
+
+ return 0;
+
+restore:
+ mt76_for_each_q_rx(mdev, i) {
+ napi_enable(&mdev->napi[i]);
+ }
+ napi_enable(&mdev->tx_napi);
+ if (hif_suspend)
+ mt7921_mcu_set_hif_suspend(dev, false);
+
+ return err;
+}
+
+static int mt7921_pci_resume(struct pci_dev *pdev)
+{
+ struct mt76_dev *mdev = pci_get_drvdata(pdev);
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ int i, err;
+
+ err = pci_set_power_state(pdev, PCI_D0);
+ if (err)
+ return err;
+
+ pci_restore_state(pdev);
+
+ /* enable interrupt */
+ mt7921_l1_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);
+
+ /* put dma enabled */
+ mt76_set(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
+
+ mt76_worker_enable(&mdev->tx_worker);
+ mt76_for_each_q_rx(mdev, i) {
+ napi_enable(&mdev->napi[i]);
+ napi_schedule(&mdev->napi[i]);
+ }
+ napi_enable(&mdev->tx_napi);
+ napi_schedule(&mdev->tx_napi);
+
+ if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state))
+ err = mt7921_mcu_set_hif_suspend(dev, false);
+
+ return err;
+}
+#endif /* CONFIG_PM */
+
struct pci_driver mt7921_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7921_pci_device_table,
.probe = mt7921_pci_probe,
.remove = mt7921_pci_remove,
+#ifdef CONFIG_PM
+ .suspend = mt7921_pci_suspend,
+ .resume = mt7921_pci_resume,
+#endif /* CONFIG_PM */
};
module_pci_driver(mt7921_pci_driver);
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: <sean.wang@mediatek.com>
To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com>
Cc: ryder.lee@mediatek.com, robin.chiu@mediatek.com,
ch.yeh@mediatek.com, Eric.Liang@mediatek.com,
sean.wang@mediatek.com, linux-wireless@vger.kernel.org,
posh.sun@mediatek.com, YN.Chen@mediatek.com,
linux-mediatek@lists.infradead.org, Soul.Huang@mediatek.com,
Lorenzo Bianconi <lorenzo@kernel.org>
Subject: [PATCH -next v5 15/15] mt76: mt7921: introduce PM support
Date: Tue, 5 Jan 2021 02:00:19 +0800 [thread overview]
Message-ID: <b82d602153b75ecad239f1bcd187d15684f1df84.1609781247.git.objelf@gmail.com> (raw)
In-Reply-To: <cover.1609781247.git.objelf@gmail.com>
From: Sean Wang <sean.wang@mediatek.com>
Introduce suspend/resume and WoW (Wake-on-WoWLAN) support to mt7921
driver to allow remote wakeu-up from the suspend state.
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7921/main.c | 79 +++++
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 307 ++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 99 ++++++
.../wireless/mediatek/mt76/mt7921/mt7921.h | 9 +
.../net/wireless/mediatek/mt76/mt7921/pci.c | 95 ++++++
5 files changed, 589 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 0af5e536e5cc..390ea23c92d8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -938,6 +938,79 @@ mt7921_sta_rc_update(struct ieee80211_hw *hw,
{
}
+#ifdef CONFIG_PM
+static int mt7921_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ cancel_delayed_work_sync(&phy->scan_work);
+ cancel_delayed_work_sync(&phy->mt76->mac_work);
+
+ mutex_lock(&dev->mt76.mutex);
+
+ clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+
+ set_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7921_mcu_set_suspend_iter, phy);
+
+ err = mt7921_mcu_set_hif_suspend(dev, true);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static int mt7921_resume(struct ieee80211_hw *hw)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ err = mt7921_mcu_set_hif_suspend(dev, false);
+ if (err < 0)
+ goto out;
+
+ set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+ clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7921_mcu_set_suspend_iter, phy);
+
+ ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
+ MT7921_WATCHDOG_TIME);
+out:
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static void mt7921_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_dev *mdev = &dev->mt76;
+
+ device_set_wakeup_enable(mdev->dev, enabled);
+}
+
+static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *data)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+ mutex_lock(&dev->mt76.mutex);
+ mt7921_mcu_update_gtk_rekey(hw, vif, data);
+ mutex_unlock(&dev->mt76.mutex);
+}
+#endif /* CONFIG_PM */
+
const struct ieee80211_ops mt7921_ops = {
.tx = mt7921_tx,
.start = mt7921_start,
@@ -969,4 +1042,10 @@ const struct ieee80211_ops mt7921_ops = {
.cancel_hw_scan = mt7921_cancel_hw_scan,
.sched_scan_start = mt7921_start_sched_scan,
.sched_scan_stop = mt7921_stop_sched_scan,
+#ifdef CONFIG_PM
+ .suspend = mt7921_suspend,
+ .resume = mt7921_resume,
+ .set_wakeup = mt7921_set_wakeup,
+ .set_rekey_data = mt7921_set_rekey_data,
+#endif /* CONFIG_PM */
};
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 57f8b7b770dc..becb31e09c82 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -1704,6 +1704,15 @@ static int mt7921_load_ram(struct mt7921_dev *dev)
return ret;
}
+static const struct wiphy_wowlan_support mt7921_wowlan_support = {
+ .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
+ WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | WIPHY_WOWLAN_NET_DETECT,
+ .n_patterns = 1,
+ .pattern_min_len = 1,
+ .pattern_max_len = MT7921_WOW_PATTEN_MAX_LEN,
+ .max_nd_match_sets = 10,
+};
+
static int mt7921_load_firmware(struct mt7921_dev *dev)
{
int ret;
@@ -1731,6 +1740,10 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
+#ifdef CONFIG_PM
+ dev->mt76.hw->wiphy->wowlan = &mt7921_wowlan_support;
+#endif /* CONFIG_PM */
+
dev_err(dev->mt76.dev, "Firmware init done\n");
return 0;
@@ -2623,3 +2636,297 @@ int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_CONNECTED, &req,
sizeof(req), false);
}
+
+#ifdef CONFIG_PM
+int mt7921_mcu_set_hif_suspend(struct mt7921_dev *dev, bool suspend)
+{
+ struct {
+ struct {
+ u8 hif_type; /* 0x0: HIF_SDIO
+ * 0x1: HIF_USB
+ * 0x2: HIF_PCIE
+ */
+ u8 pad[3];
+ } __packed hdr;
+ struct hif_suspend_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 suspend;
+ } __packed hif_suspend;
+ } req = {
+ .hif_suspend = {
+ .tag = cpu_to_le16(0), /* 0: UNI_HIF_CTRL_BASIC */
+ .len = cpu_to_le16(sizeof(struct hif_suspend_tlv)),
+ .suspend = suspend,
+ },
+ };
+
+ if (mt76_is_mmio(&dev->mt76))
+ req.hdr.hif_type = 2;
+ else if (mt76_is_usb(&dev->mt76))
+ req.hdr.hif_type = 1;
+ else if (mt76_is_sdio(&dev->mt76))
+ req.hdr.hif_type = 0;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_HIF_CTRL, &req,
+ sizeof(req), true);
+}
+EXPORT_SYMBOL_GPL(mt7921_mcu_set_hif_suspend);
+
+static int
+mt7921_mcu_set_wow_ctrl(struct mt7921_phy *phy, struct ieee80211_vif *vif,
+ bool suspend, struct cfg80211_wowlan *wowlan)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = phy->dev;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7921_wow_ctrl_tlv wow_ctrl_tlv;
+ struct mt7921_wow_gpio_param_tlv gpio_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .wow_ctrl_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_WOW_CTRL),
+ .len = cpu_to_le16(sizeof(struct mt7921_wow_ctrl_tlv)),
+ .cmd = suspend ? 1 : 2,
+ },
+ .gpio_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_WOW_GPIO_PARAM),
+ .len = cpu_to_le16(sizeof(struct mt7921_wow_gpio_param_tlv)),
+ .gpio_pin = 0xff, /* follow fw about GPIO pin */
+ },
+ };
+
+ if (wowlan->magic_pkt)
+ req.wow_ctrl_tlv.trigger |= BIT(0);
+ if (wowlan->disconnect)
+ req.wow_ctrl_tlv.trigger |= BIT(2);
+ if (wowlan->nd_config) {
+ mt7921_mcu_sched_scan_req(phy, vif, wowlan->nd_config);
+ req.wow_ctrl_tlv.trigger |= BIT(5);
+ mt7921_mcu_sched_scan_enable(phy, vif, suspend);
+ }
+
+ if (mt76_is_mmio(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_PCIE;
+ else if (mt76_is_usb(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_USB;
+ else if (mt76_is_sdio(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = WOW_GPIO;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_wow_pattern(struct mt7921_dev *dev,
+ struct ieee80211_vif *vif,
+ u8 index, bool enable,
+ struct cfg80211_pkt_pattern *pattern)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_wow_pattern_tlv *ptlv;
+ struct sk_buff *skb;
+ struct req_hdr {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr = {
+ .bss_idx = mvif->idx,
+ };
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(hdr) + sizeof(*ptlv));
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put_data(skb, &hdr, sizeof(hdr));
+ ptlv = (struct mt7921_wow_pattern_tlv *)skb_put(skb, sizeof(*ptlv));
+ ptlv->tag = cpu_to_le16(UNI_SUSPEND_WOW_PATTERN);
+ ptlv->len = cpu_to_le16(sizeof(*ptlv));
+ ptlv->data_len = pattern->pattern_len;
+ ptlv->enable = enable;
+ ptlv->index = index;
+
+ memcpy(ptlv->pattern, pattern->pattern, pattern->pattern_len);
+ memcpy(ptlv->mask, pattern->mask, pattern->pattern_len / 8);
+
+ return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_SUSPEND,
+ true);
+}
+
+static int
+mt7921_mcu_set_suspend_mode(struct mt7921_dev *dev,
+ struct ieee80211_vif *vif,
+ bool enable, u8 mdtim, bool wow_suspend)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7921_suspend_tlv suspend_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .suspend_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_MODE_SETTING),
+ .len = cpu_to_le16(sizeof(struct mt7921_suspend_tlv)),
+ .enable = enable,
+ .mdtim = mdtim,
+ .wow_suspend = wow_suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_gtk_rekey(struct mt7921_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 mt7921_gtk_rekey_tlv gtk_tlv;
+ } __packed req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .gtk_tlv = {
+ .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_GTK_REKEY),
+ .len = cpu_to_le16(sizeof(struct mt7921_gtk_rekey_tlv)),
+ .rekey_mode = !suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_OFFLOAD, &req,
+ sizeof(req), true);
+}
+
+static int
+mt7921_mcu_set_arp_filter(struct mt7921_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 mt7921_arpns_tlv arpns;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .arpns = {
+ .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ARP),
+ .len = cpu_to_le16(sizeof(struct mt7921_arpns_tlv)),
+ .mode = suspend,
+ },
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_OFFLOAD, &req,
+ sizeof(req), true);
+}
+
+void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_phy *phy = priv;
+ bool suspend = test_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ struct ieee80211_hw *hw = phy->mt76->hw;
+ struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;
+ int i;
+
+ mt7921_mcu_set_gtk_rekey(phy->dev, vif, suspend);
+ mt7921_mcu_set_arp_filter(phy->dev, vif, suspend);
+
+ mt7921_mcu_set_suspend_mode(phy->dev, vif, suspend, 1, true);
+
+ for (i = 0; i < wowlan->n_patterns; i++)
+ mt7921_mcu_set_wow_pattern(phy->dev, vif, i, suspend,
+ &wowlan->patterns[i]);
+ mt7921_mcu_set_wow_ctrl(phy, vif, suspend, wowlan);
+}
+
+static void
+mt7921_mcu_key_iter(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct ieee80211_key_conf *key,
+ void *data)
+{
+ struct mt7921_gtk_rekey_tlv *gtk_tlv = data;
+ u32 cipher;
+
+ if (key->cipher != WLAN_CIPHER_SUITE_AES_CMAC &&
+ key->cipher != WLAN_CIPHER_SUITE_CCMP &&
+ key->cipher != WLAN_CIPHER_SUITE_TKIP)
+ return;
+
+ if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
+ gtk_tlv->proto = cpu_to_le32(NL80211_WPA_VERSION_1);
+ cipher = BIT(3);
+ } else {
+ gtk_tlv->proto = cpu_to_le32(NL80211_WPA_VERSION_2);
+ cipher = BIT(4);
+ }
+
+ /* we are assuming here to have a single pairwise key */
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
+ gtk_tlv->pairwise_cipher = cpu_to_le32(cipher);
+ gtk_tlv->group_cipher = cpu_to_le32(cipher);
+ gtk_tlv->keyid = key->keyidx;
+ }
+}
+
+int mt7921_mcu_update_gtk_rekey(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *key)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_gtk_rekey_tlv *gtk_tlv;
+ struct sk_buff *skb;
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr = {
+ .bss_idx = mvif->idx,
+ };
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(hdr) + sizeof(*gtk_tlv));
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put_data(skb, &hdr, sizeof(hdr));
+ gtk_tlv = (struct mt7921_gtk_rekey_tlv *)skb_put(skb,
+ sizeof(*gtk_tlv));
+ gtk_tlv->tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_GTK_REKEY);
+ gtk_tlv->len = cpu_to_le16(sizeof(*gtk_tlv));
+ gtk_tlv->rekey_mode = 2;
+ gtk_tlv->option = 1;
+
+ rcu_read_lock();
+ ieee80211_iter_keys_rcu(hw, vif, mt7921_mcu_key_iter, gtk_tlv);
+ rcu_read_unlock();
+
+ memcpy(gtk_tlv->kek, key->kek, NL80211_KEK_LEN);
+ memcpy(gtk_tlv->kck, key->kck, NL80211_KCK_LEN);
+ memcpy(gtk_tlv->replay_ctr, key->replay_ctr, NL80211_REPLAY_CTR_LEN);
+
+ return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_OFFLOAD,
+ true);
+}
+#endif /* CONFIG_PM */
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index d6cb062619db..151a36f1b878 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -182,6 +182,105 @@ struct mt7921_mcu_uni_event {
__le32 status; /* 0: success, others: fail */
} __packed;
+enum {
+ WOW_USB = 1,
+ WOW_PCIE = 2,
+ WOW_GPIO = 3,
+};
+
+struct mt7921_wow_ctrl_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 cmd; /* 0x1: PM_WOWLAN_REQ_START
+ * 0x2: PM_WOWLAN_REQ_STOP
+ * 0x3: PM_WOWLAN_PARAM_CLEAR
+ */
+ u8 trigger; /* 0: NONE
+ * BIT(0): NL80211_WOWLAN_TRIG_MAGIC_PKT
+ * BIT(1): NL80211_WOWLAN_TRIG_ANY
+ * BIT(2): NL80211_WOWLAN_TRIG_DISCONNECT
+ * BIT(3): NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE
+ * BIT(4): BEACON_LOST
+ * BIT(5): NL80211_WOWLAN_TRIG_NET_DETECT
+ */
+ u8 wakeup_hif; /* 0x0: HIF_SDIO
+ * 0x1: HIF_USB
+ * 0x2: HIF_PCIE
+ * 0x3: HIF_GPIO
+ */
+ u8 pad;
+ u8 rsv[4];
+} __packed;
+
+struct mt7921_wow_gpio_param_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 gpio_pin;
+ u8 trigger_lvl;
+ u8 pad[2];
+ __le32 gpio_interval;
+ u8 rsv[4];
+} __packed;
+
+#define MT7921_WOW_MASK_MAX_LEN 16
+#define MT7921_WOW_PATTEN_MAX_LEN 128
+struct mt7921_wow_pattern_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 index; /* pattern index */
+ u8 enable; /* 0: disable
+ * 1: enable
+ */
+ u8 data_len; /* pattern length */
+ u8 pad;
+ u8 mask[MT7921_WOW_MASK_MAX_LEN];
+ u8 pattern[MT7921_WOW_PATTEN_MAX_LEN];
+ u8 rsv[4];
+} __packed;
+
+struct mt7921_suspend_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 enable; /* 0: suspend mode disabled
+ * 1: suspend mode enabled
+ */
+ u8 mdtim; /* LP parameter */
+ u8 wow_suspend; /* 0: update by origin policy
+ * 1: update by wow dtim
+ */
+ u8 pad[5];
+} __packed;
+
+struct mt7921_gtk_rekey_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 kek[NL80211_KEK_LEN];
+ u8 kck[NL80211_KCK_LEN];
+ u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+ u8 rekey_mode; /* 0: rekey offload enable
+ * 1: rekey offload disable
+ * 2: rekey update
+ */
+ u8 keyid;
+ u8 pad[2];
+ __le32 proto; /* WPA-RSN-WAPI-OPSN */
+ __le32 pairwise_cipher;
+ __le32 group_cipher;
+ __le32 key_mgmt; /* NONE-PSK-IEEE802.1X */
+ __le32 mgmt_group_cipher;
+ u8 option; /* 1: rekey data update without enabling offload */
+ u8 reserverd[3];
+} __packed;
+
+struct mt7921_arpns_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 mode;
+ u8 ips_num;
+ u8 option;
+ u8 pad[1];
+} __packed;
+
/* offload mcu commands */
enum {
MCU_CMD_START_HW_SCAN = MCU_CE_PREFIX | 0x03,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index 54d3d21abf91..8d3af412d75c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -365,4 +365,13 @@ u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
bool enable);
+int mt7921_mcu_set_hif_suspend(struct mt7921_dev *dev, bool suspend);
+void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif);
+int mt7921_mcu_update_gtk_rekey(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *key);
+int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info);
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 6808bc749583..202cde1b6289 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -167,11 +167,106 @@ static void mt7921_pci_remove(struct pci_dev *pdev)
pci_free_irq_vectors(pdev);
}
+#ifdef CONFIG_PM
+static int mt7921_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct mt76_dev *mdev = pci_get_drvdata(pdev);
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ bool hif_suspend;
+ int i, err;
+
+ hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state);
+ if (hif_suspend) {
+ err = mt7921_mcu_set_hif_suspend(dev, true);
+ if (err)
+ return err;
+ }
+
+ napi_disable(&mdev->tx_napi);
+ mt76_worker_disable(&mdev->tx_worker);
+
+ mt76_for_each_q_rx(mdev, i) {
+ napi_disable(&mdev->napi[i]);
+ }
+ tasklet_kill(&dev->irq_tasklet);
+
+ pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
+
+ /* wait until dma is idle */
+ mt76_poll(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_BUSY |
+ MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000);
+
+ /* put dma disabled */
+ mt76_clear(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
+
+ /* disable interrupt */
+ mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
+
+ pci_save_state(pdev);
+ err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ if (err)
+ goto restore;
+
+ return 0;
+
+restore:
+ mt76_for_each_q_rx(mdev, i) {
+ napi_enable(&mdev->napi[i]);
+ }
+ napi_enable(&mdev->tx_napi);
+ if (hif_suspend)
+ mt7921_mcu_set_hif_suspend(dev, false);
+
+ return err;
+}
+
+static int mt7921_pci_resume(struct pci_dev *pdev)
+{
+ struct mt76_dev *mdev = pci_get_drvdata(pdev);
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ int i, err;
+
+ err = pci_set_power_state(pdev, PCI_D0);
+ if (err)
+ return err;
+
+ pci_restore_state(pdev);
+
+ /* enable interrupt */
+ mt7921_l1_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);
+
+ /* put dma enabled */
+ mt76_set(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
+
+ mt76_worker_enable(&mdev->tx_worker);
+ mt76_for_each_q_rx(mdev, i) {
+ napi_enable(&mdev->napi[i]);
+ napi_schedule(&mdev->napi[i]);
+ }
+ napi_enable(&mdev->tx_napi);
+ napi_schedule(&mdev->tx_napi);
+
+ if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state))
+ err = mt7921_mcu_set_hif_suspend(dev, false);
+
+ return err;
+}
+#endif /* CONFIG_PM */
+
struct pci_driver mt7921_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7921_pci_device_table,
.probe = mt7921_pci_probe,
.remove = mt7921_pci_remove,
+#ifdef CONFIG_PM
+ .suspend = mt7921_pci_suspend,
+ .resume = mt7921_pci_resume,
+#endif /* CONFIG_PM */
};
module_pci_driver(mt7921_pci_driver);
--
2.25.1
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next prev parent reply other threads:[~2021-01-04 18:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-04 18:00 [PATCH -next v5 00/15] introduce mt7921e support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 01/15] mt76: move mac_work in mt76_core module sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 02/15] mt76: move chainmask in mt76_phy sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 03/15] mt76: mt7921: add MAC support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 04/15] mt76: mt7921: add MCU support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 05/15] mt76: mt7921: add DMA support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 06/15] mt76: mt7921: add EEPROM support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 07/15] mt76: mt7921: add ieee80211_ops sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 08/15] mt76: mt7921: introduce mt7921e support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 09/15] mt76: mt7921: add debugfs support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 10/15] mt76: mt7921: add module support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 11/15] mt76: mt7921: introduce schedule scan support sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 12/15] mt76: mt7921: introduce 802.11 PS support in sta mode sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 13/15] mt76: mt7921: introduce support for hardware beacon filter sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` [PATCH -next v5 14/15] mt76: mt7921: introduce beacon_loss mcu event sean.wang
2021-01-04 18:00 ` sean.wang
2021-01-04 18:00 ` sean.wang [this message]
2021-01-04 18:00 ` [PATCH -next v5 15/15] mt76: mt7921: introduce PM support sean.wang
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