Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Increase size limits for to-be-sent skb frag allocations. This
     allows tun, tap devices and packet sockets to better cope with
     large writes operations

   - Store netdevs in an xarray, to simplify iterating over netdevs

   - Refactor nexthop selection for multipath routes

   - Improve sched class lifetime handling

   - Add backup nexthop ID support for bridge

   - Implement drop reasons support in openvswitch

   - Several data races annotations and fixes

   - Constify the sk parameter of routing functions

   - Prepend kernel version to netconsole message

  Protocols:

   - Implement support for TCP probing the peer being under memory
     pressure

   - Remove hard coded limitation on IPv6 specific info placement inside
     the socket struct

   - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per
     socket scaling factor

   - Scaling-up the IPv6 expired route GC via a separated list of
     expiring routes

   - In-kernel support for the TLS alert protocol

   - Better support for UDP reuseport with connected sockets

   - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
     header size

   - Get rid of additional ancillary per MPTCP connection struct socket

   - Implement support for BPF-based MPTCP packet schedulers

   - Format MPTCP subtests selftests results in TAP

   - Several new SMC 2.1 features including unique experimental options,
     max connections per lgr negotiation, max links per lgr negotiation

  BPF:

   - Multi-buffer support in AF_XDP

   - Add multi uprobe BPF links for attaching multiple uprobes and usdt
     probes, which is significantly faster and saves extra fds

   - Implement an fd-based tc BPF attach API (TCX) and BPF link support
     on top of it

   - Add SO_REUSEPORT support for TC bpf_sk_assign

   - Support new instructions from cpu v4 to simplify the generated code
     and feature completeness, for x86, arm64, riscv64

   - Support defragmenting IPv(4|6) packets in BPF

   - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix
     perf+libbpf issue related to custom section handling

   - Introduce bpf map element count and enable it for all program types

   - Add a BPF hook in sys_socket() to change the protocol ID from
     IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy

   - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress

   - Add uprobe support for the bpf_get_func_ip helper

   - Check skb ownership against full socket

   - Support for up to 12 arguments in BPF trampoline

   - Extend link_info for kprobe_multi and perf_event links

  Netfilter:

   - Speed-up process exit by aborting ruleset validation if a fatal
     signal is pending

   - Allow NLA_POLICY_MASK to be used with BE16/BE32 types

  Driver API:

   - Page pool optimizations, to improve data locality and cache usage

   - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the
     need for raw ioctl() handling in drivers

   - Simplify genetlink dump operations (doit/dumpit) providing them the
     common information already populated in struct genl_info

   - Extend and use the yaml devlink specs to [re]generate the split ops

   - Introduce devlink selective dumps, to allow SF filtering SF based
     on handle and other attributes

   - Add yaml netlink spec for netlink-raw families, allow route, link
     and address related queries via the ynl tool

   - Remove phylink legacy mode support

   - Support offload LED blinking to phy

   - Add devlink port function attributes for IPsec

  New hardware / drivers:

   - Ethernet:
      - Broadcom ASP 2.0 (72165) ethernet controller
      - MediaTek MT7988 SoC
      - Texas Instruments AM654 SoC
      - Texas Instruments IEP driver
      - Atheros qca8081 phy
      - Marvell 88Q2110 phy
      - NXP TJA1120 phy

   - WiFi:
      - MediaTek mt7981 support

   - Can:
      - Kvaser SmartFusion2 PCI Express devices
      - Allwinner T113 controllers
      - Texas Instruments tcan4552/4553 chips

   - Bluetooth:
      - Intel Gale Peak
      - Qualcomm WCN3988 and WCN7850
      - NXP AW693 and IW624
      - Mediatek MT2925

  Drivers:

   - Ethernet NICs:
      - nVidia/Mellanox:
         - mlx5:
            - support UDP encapsulation in packet offload mode
            - IPsec packet offload support in eswitch mode
            - improve aRFS observability by adding new set of counters
            - extends MACsec offload support to cover RoCE traffic
            - dynamic completion EQs
         - mlx4:
            - convert to use auxiliary bus instead of custom interface
              logic
      - Intel
         - ice:
            - implement switchdev bridge offload, even for LAG
              interfaces
            - implement SRIOV support for LAG interfaces
         - igc:
            - add support for multiple in-flight TX timestamps
      - Broadcom:
         - bnxt:
            - use the unified RX page pool buffers for XDP and non-XDP
            - use the NAPI skb allocation cache
      - OcteonTX2:
         - support Round Robin scheduling HTB offload
         - TC flower offload support for SPI field
      - Freescale:
         - add XDP_TX feature support
      - AMD:
         - ionic: add support for PCI FLR event
         - sfc:
            - basic conntrack offload
            - introduce eth, ipv4 and ipv6 pedit offloads
      - ST Microelectronics:
         - stmmac: maximze PTP timestamping resolution

   - Virtual NICs:
      - Microsoft vNIC:
         - batch ringing RX queue doorbell on receiving packets
         - add page pool for RX buffers
      - Virtio vNIC:
         - add per queue interrupt coalescing support
      - Google vNIC:
         - add queue-page-list mode support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add port range matching tc-flower offload
         - permit enslavement to netdevices with uppers

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - convert to phylink_pcs
      - Renesas:
         - r8A779fx: add speed change support
         - rzn1: enables vlan support

   - Ethernet PHYs:
      - convert mv88e6xxx to phylink_pcs

   - WiFi:
      - Qualcomm Wi-Fi 7 (ath12k):
         - extremely High Throughput (EHT) PHY support
      - RealTek (rtl8xxxu):
         - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
           RTL8192EU and RTL8723BU
      - RealTek (rtw89):
         - Introduce Time Averaged SAR (TAS) support

   - Connector:
      - support for event filtering"

* tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits)
  net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show
  net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler
  net: stmmac: clarify difference between "interface" and "phy_interface"
  r8152: add vendor/device ID pair for D-Link DUB-E250
  devlink: move devlink_notify_register/unregister() to dev.c
  devlink: move small_ops definition into netlink.c
  devlink: move tracepoint definitions into core.c
  devlink: push linecard related code into separate file
  devlink: push rate related code into separate file
  devlink: push trap related code into separate file
  devlink: use tracepoint_enabled() helper
  devlink: push region related code into separate file
  devlink: push param related code into separate file
  devlink: push resource related code into separate file
  devlink: push dpipe related code into separate file
  devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper
  devlink: push shared buffer related code into separate file
  devlink: push port related code into separate file
  devlink: push object register/unregister notifications into separate helpers
  inet: fix IP_TRANSPARENT error handling
  ...

1 files changed, 73 insertions, 121 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 7df8d95fc3fb..b8b0c0fda752 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -105,9 +105,9 @@ static void mt7915_mac_sta_poll(struct mt7915_dev *dev)
 	LIST_HEAD(sta_poll_list);
 	int i;
 
-	spin_lock_bh(&dev->sta_poll_lock);
-	list_splice_init(&dev->sta_poll_list, &sta_poll_list);
-	spin_unlock_bh(&dev->sta_poll_lock);
+	spin_lock_bh(&dev->mt76.sta_poll_lock);
+	list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list);
+	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 	rcu_read_lock();
 
@@ -118,15 +118,15 @@ static void mt7915_mac_sta_poll(struct mt7915_dev *dev)
 		s8 rssi[4];
 		u8 bw;
 
-		spin_lock_bh(&dev->sta_poll_lock);
+		spin_lock_bh(&dev->mt76.sta_poll_lock);
 		if (list_empty(&sta_poll_list)) {
-			spin_unlock_bh(&dev->sta_poll_lock);
+			spin_unlock_bh(&dev->mt76.sta_poll_lock);
 			break;
 		}
 		msta = list_first_entry(&sta_poll_list,
-					struct mt7915_sta, poll_list);
-		list_del_init(&msta->poll_list);
-		spin_unlock_bh(&dev->sta_poll_lock);
+					struct mt7915_sta, wcid.poll_list);
+		list_del_init(&msta->wcid.poll_list);
+		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 		idx = msta->wcid.idx;
 
@@ -326,10 +326,11 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb,
 
 	if (status->wcid) {
 		msta = container_of(status->wcid, struct mt7915_sta, wcid);
-		spin_lock_bh(&dev->sta_poll_lock);
-		if (list_empty(&msta->poll_list))
-			list_add_tail(&msta->poll_list, &dev->sta_poll_list);
-		spin_unlock_bh(&dev->sta_poll_lock);
+		spin_lock_bh(&dev->mt76.sta_poll_lock);
+		if (list_empty(&msta->wcid.poll_list))
+			list_add_tail(&msta->wcid.poll_list,
+				      &dev->mt76.sta_poll_list);
+		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 	}
 
 	status->freq = mphy->chandef.chan->center_freq;
@@ -842,74 +843,6 @@ u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id)
 }
 
 static void
-mt7915_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
-{
-	struct mt7915_sta *msta;
-	u16 fc, tid;
-	u32 val;
-
-	if (!sta || !(sta->deflink.ht_cap.ht_supported || sta->deflink.he_cap.has_he))
-		return;
-
-	tid = le32_get_bits(txwi[1], MT_TXD1_TID);
-	if (tid >= 6) /* skip VO queue */
-		return;
-
-	val = le32_to_cpu(txwi[2]);
-	fc = FIELD_GET(MT_TXD2_FRAME_TYPE, val) << 2 |
-	     FIELD_GET(MT_TXD2_SUB_TYPE, val) << 4;
-	if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA)))
-		return;
-
-	msta = (struct mt7915_sta *)sta->drv_priv;
-	if (!test_and_set_bit(tid, &msta->ampdu_state))
-		ieee80211_start_tx_ba_session(sta, tid, 0);
-}
-
-static void
-mt7915_txwi_free(struct mt7915_dev *dev, struct mt76_txwi_cache *t,
-		 struct ieee80211_sta *sta, struct list_head *free_list)
-{
-	struct mt76_dev *mdev = &dev->mt76;
-	struct mt7915_sta *msta;
-	struct mt76_wcid *wcid;
-	__le32 *txwi;
-	u16 wcid_idx;
-
-	mt76_connac_txp_skb_unmap(mdev, t);
-	if (!t->skb)
-		goto out;
-
-	txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t);
-	if (sta) {
-		wcid = (struct mt76_wcid *)sta->drv_priv;
-		wcid_idx = wcid->idx;
-	} else {
-		wcid_idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX);
-		wcid = rcu_dereference(dev->mt76.wcid[wcid_idx]);
-
-		if (wcid && wcid->sta) {
-			msta = container_of(wcid, struct mt7915_sta, wcid);
-			sta = container_of((void *)msta, struct ieee80211_sta,
-					  drv_priv);
-			spin_lock_bh(&dev->sta_poll_lock);
-			if (list_empty(&msta->poll_list))
-				list_add_tail(&msta->poll_list, &dev->sta_poll_list);
-			spin_unlock_bh(&dev->sta_poll_lock);
-		}
-	}
-
-	if (sta && likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE)))
-		mt7915_tx_check_aggr(sta, txwi);
-
-	__mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list);
-
-out:
-	t->skb = NULL;
-	mt76_put_txwi(mdev, t);
-}
-
-static void
 mt7915_mac_tx_free_prepare(struct mt7915_dev *dev)
 {
 	struct mt76_dev *mdev = &dev->mt76;
@@ -951,6 +884,7 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
 	struct mt76_dev *mdev = &dev->mt76;
 	struct mt76_txwi_cache *txwi;
 	struct ieee80211_sta *sta = NULL;
+	struct mt76_wcid *wcid = NULL;
 	LIST_HEAD(free_list);
 	void *end = data + len;
 	bool v3, wake = false;
@@ -977,7 +911,6 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
 		info = le32_to_cpu(*cur_info);
 		if (info & MT_TX_FREE_PAIR) {
 			struct mt7915_sta *msta;
-			struct mt76_wcid *wcid;
 			u16 idx;
 
 			idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info);
@@ -987,14 +920,33 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
 				continue;
 
 			msta = container_of(wcid, struct mt7915_sta, wcid);
-			spin_lock_bh(&dev->sta_poll_lock);
-			if (list_empty(&msta->poll_list))
-				list_add_tail(&msta->poll_list, &dev->sta_poll_list);
-			spin_unlock_bh(&dev->sta_poll_lock);
+			spin_lock_bh(&mdev->sta_poll_lock);
+			if (list_empty(&msta->wcid.poll_list))
+				list_add_tail(&msta->wcid.poll_list,
+					      &mdev->sta_poll_list);
+			spin_unlock_bh(&mdev->sta_poll_lock);
 			continue;
 		}
 
-		if (v3 && (info & MT_TX_FREE_MPDU_HEADER))
+		if (!mtk_wed_device_active(&mdev->mmio.wed) && wcid) {
+			u32 tx_retries = 0, tx_failed = 0;
+
+			if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3)) {
+				tx_retries =
+					FIELD_GET(MT_TX_FREE_COUNT_V3, info) - 1;
+				tx_failed = tx_retries +
+					!!FIELD_GET(MT_TX_FREE_STAT_V3, info);
+			} else if (!v3 && (info & MT_TX_FREE_MPDU_HEADER)) {
+				tx_retries =
+					FIELD_GET(MT_TX_FREE_COUNT, info) - 1;
+				tx_failed = tx_retries +
+					!!FIELD_GET(MT_TX_FREE_STAT, info);
+			}
+			wcid->stats.tx_retries += tx_retries;
+			wcid->stats.tx_failed += tx_failed;
+		}
+
+		if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3))
 			continue;
 
 		for (i = 0; i < 1 + v3; i++) {
@@ -1010,7 +962,7 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
 			if (!txwi)
 				continue;
 
-			mt7915_txwi_free(dev, txwi, sta, &free_list);
+			mt76_connac2_txwi_free(mdev, txwi, sta, &free_list);
 		}
 	}
 
@@ -1042,7 +994,7 @@ mt7915_mac_tx_free_v0(struct mt7915_dev *dev, void *data, int len)
 		if (!txwi)
 			continue;
 
-		mt7915_txwi_free(dev, txwi, NULL, &free_list);
+		mt76_connac2_txwi_free(mdev, txwi, NULL, &free_list);
 	}
 
 	mt7915_mac_tx_free_done(dev, &free_list, wake);
@@ -1081,10 +1033,10 @@ static void mt7915_mac_add_txs(struct mt7915_dev *dev, void *data)
 	if (!wcid->sta)
 		goto out;
 
-	spin_lock_bh(&dev->sta_poll_lock);
-	if (list_empty(&msta->poll_list))
-		list_add_tail(&msta->poll_list, &dev->sta_poll_list);
-	spin_unlock_bh(&dev->sta_poll_lock);
+	spin_lock_bh(&dev->mt76.sta_poll_lock);
+	if (list_empty(&msta->wcid.poll_list))
+		list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
+	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 out:
 	rcu_read_unlock();
@@ -1357,20 +1309,6 @@ mt7915_update_beacons(struct mt7915_dev *dev)
 		mt7915_update_vif_beacon, mphy_ext->hw);
 }
 
-void mt7915_tx_token_put(struct mt7915_dev *dev)
-{
-	struct mt76_txwi_cache *txwi;
-	int id;
-
-	spin_lock_bh(&dev->mt76.token_lock);
-	idr_for_each_entry(&dev->mt76.token, txwi, id) {
-		mt7915_txwi_free(dev, txwi, NULL, NULL);
-		dev->mt76.token_count--;
-	}
-	spin_unlock_bh(&dev->mt76.token_lock);
-	idr_destroy(&dev->mt76.token);
-}
-
 static int
 mt7915_mac_restart(struct mt7915_dev *dev)
 {
@@ -1389,8 +1327,12 @@ mt7915_mac_restart(struct mt7915_dev *dev)
 
 	if (dev_is_pci(mdev->dev)) {
 		mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
-		if (dev->hif2)
-			mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0);
+		if (dev->hif2) {
+			if (is_mt7915(mdev))
+				mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0);
+			else
+				mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0x0);
+		}
 	}
 
 	set_bit(MT76_RESET, &dev->mphy.state);
@@ -1415,7 +1357,7 @@ mt7915_mac_restart(struct mt7915_dev *dev)
 	napi_disable(&dev->mt76.tx_napi);
 
 	/* token reinit */
-	mt7915_tx_token_put(dev);
+	mt76_connac2_tx_token_put(&dev->mt76);
 	idr_init(&dev->mt76.token);
 
 	mt7915_dma_reset(dev, true);
@@ -1440,8 +1382,12 @@ mt7915_mac_restart(struct mt7915_dev *dev)
 	}
 	if (dev_is_pci(mdev->dev)) {
 		mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
-		if (dev->hif2)
-			mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
+		if (dev->hif2) {
+			if (is_mt7915(mdev))
+				mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
+			else
+				mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0xff);
+		}
 	}
 
 	/* load firmware */
@@ -1576,7 +1522,7 @@ void mt7915_mac_reset_work(struct work_struct *work)
 
 	if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
 		mtk_wed_device_stop(&dev->mt76.mmio.wed);
-		if (!is_mt7986(&dev->mt76))
+		if (!is_mt798x(&dev->mt76))
 			mt76_wr(dev, MT_INT_WED_MASK_CSR, 0);
 	}
 
@@ -1604,13 +1550,19 @@ void mt7915_mac_reset_work(struct work_struct *work)
 	if (mt7915_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) {
 		mt7915_dma_reset(dev, false);
 
-		mt7915_tx_token_put(dev);
+		mt76_connac2_tx_token_put(&dev->mt76);
 		idr_init(&dev->mt76.token);
 
 		mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT);
 		mt7915_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE);
 	}
 
+	mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
+	mt7915_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
+
+	/* enable DMA Tx/Rx and interrupt */
+	mt7915_dma_start(dev, false, false);
+
 	clear_bit(MT76_MCU_RESET, &dev->mphy.state);
 	clear_bit(MT76_RESET, &dev->mphy.state);
 	if (phy2)
@@ -1625,9 +1577,6 @@ void mt7915_mac_reset_work(struct work_struct *work)
 
 	tasklet_schedule(&dev->mt76.irq_tasklet);
 
-	mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
-	mt7915_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
-
 	mt76_worker_enable(&dev->mt76.tx_worker);
 
 	local_bh_disable();
@@ -1747,8 +1696,8 @@ void mt7915_reset(struct mt7915_dev *dev)
 
 void mt7915_mac_update_stats(struct mt7915_phy *phy)
 {
+	struct mt76_mib_stats *mib = &phy->mib;
 	struct mt7915_dev *dev = phy->dev;
-	struct mib_stats *mib = &phy->mib;
 	int i, aggr0 = 0, aggr1, cnt;
 	u8 band = phy->mt76->band_idx;
 	u32 val;
@@ -2010,7 +1959,7 @@ void mt7915_mac_sta_rc_work(struct work_struct *work)
 	u32 changed;
 	LIST_HEAD(list);
 
-	spin_lock_bh(&dev->sta_poll_lock);
+	spin_lock_bh(&dev->mt76.sta_poll_lock);
 	list_splice_init(&dev->sta_rc_list, &list);
 
 	while (!list_empty(&list)) {
@@ -2018,7 +1967,7 @@ void mt7915_mac_sta_rc_work(struct work_struct *work)
 		list_del_init(&msta->rc_list);
 		changed = msta->changed;
 		msta->changed = 0;
-		spin_unlock_bh(&dev->sta_poll_lock);
+		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 		sta = container_of((void *)msta, struct ieee80211_sta, drv_priv);
 		vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv);
@@ -2031,10 +1980,10 @@ void mt7915_mac_sta_rc_work(struct work_struct *work)
 		if (changed & IEEE80211_RC_SMPS_CHANGED)
 			mt7915_mcu_add_smps(dev, vif, sta);
 
-		spin_lock_bh(&dev->sta_poll_lock);
+		spin_lock_bh(&dev->mt76.sta_poll_lock);
 	}
 
-	spin_unlock_bh(&dev->sta_poll_lock);
+	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 }
 
 void mt7915_mac_work(struct work_struct *work)
@@ -2054,6 +2003,9 @@ void mt7915_mac_work(struct work_struct *work)
 
 		mt7915_mac_update_stats(phy);
 		mt7915_mac_severe_check(phy);
+
+		if (phy->dev->muru_debug)
+			mt7915_mcu_muru_debug_get(phy);
 	}
 
 	mutex_unlock(&mphy->dev->mutex);