Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core & protocols:

   - Improve drop account scalability on NUMA hosts for RAW and UDP
     sockets and the backlog, almost doubling the Pps capacity under DoS

   - Optimize the UDP RX performance under stress, reducing contention,
     revisiting the binary layout of the involved data structs and
     implementing NUMA-aware locking. This improves UDP RX performance
     by an additional 50%, even more under extreme conditions

   - Add support for PSP encryption of TCP connections; this mechanism
     has some similarities with IPsec and TLS, but offers superior HW
     offloads capabilities

   - Ongoing work to support Accurate ECN for TCP. AccECN allows more
     than one congestion notification signal per RTT and is a building
     block for Low Latency, Low Loss, and Scalable Throughput (L4S)

   - Reorganize the TCP socket binary layout for data locality, reducing
     the number of touched cachelines in the fastpath

   - Refactor skb deferral free to better scale on large multi-NUMA
     hosts, this improves TCP and UDP RX performances significantly on
     such HW

   - Increase the default socket memory buffer limits from 256K to 4M to
     better fit modern link speeds

   - Improve handling of setups with a large number of nexthop, making
     dump operating scaling linearly and avoiding unneeded
     synchronize_rcu() on delete

   - Improve bridge handling of VLAN FDB, storing a single entry per
     bridge instead of one entry per port; this makes the dump order of
     magnitude faster on large switches

   - Restore IP ID correctly for encapsulated packets at GSO
     segmentation time, allowing GRO to merge packets in more scenarios

   - Improve netfilter matching performance on large sets

   - Improve MPTCP receive path performance by leveraging recently
     introduced core infrastructure (skb deferral free) and adopting
     recent TCP autotuning changes

   - Allow bridges to redirect to a backup port when the bridge port is
     administratively down

   - Introduce MPTCP 'laminar' endpoint that con be used only once per
     connection and simplify common MPTCP setups

   - Add RCU safety to dst->dev, closing a lot of possible races

   - A significant crypto library API for SCTP, MPTCP and IPv6 SR,
     reducing code duplication

   - Supports pulling data from an skb frag into the linear area of an
     XDP buffer

  Things we sprinkled into general kernel code:

   - Generate netlink documentation from YAML using an integrated YAML
     parser

  Driver API:

   - Support using IPv6 Flow Label in Rx hash computation and RSS queue
     selection

   - Introduce API for fetching the DMA device for a given queue,
     allowing TCP zerocopy RX on more H/W setups

   - Make XDP helpers compatible with unreadable memory, allowing more
     easily building DevMem-enabled drivers with a unified XDP/skbs
     datapath

   - Add a new dedicated ethtool callback enabling drivers to provide
     the number of RX rings directly, improving efficiency and clarity
     in RX ring queries and RSS configuration

   - Introduce a burst period for the health reporter, allowing better
     handling of multiple errors due to the same root cause

   - Support for DPLL phase offset exponential moving average,
     controlling the average smoothing factor

  Device drivers:

   - Add a new Huawei driver for 3rd gen NIC (hinic3)

   - Add a new SpacemiT driver for K1 ethernet MAC

   - Add a generic abstraction for shared memory communication
     devices (dibps)

   - Ethernet high-speed NICs:
      - nVidia/Mellanox:
         - Use multiple per-queue doorbell, to avoid MMIO contention
           issues
         - support adjacent functions, allowing them to delegate their
           SR-IOV VFs to sibling PFs
         - support RSS for IPSec offload
         - support exposing raw cycle counters in PTP and mlx5
         - support for disabling host PFs.
      - Intel (100G, ice, idpf):
         - ice: support for SRIOV VFs over an Active-Active link
           aggregate
         - ice: support for firmware logging via debugfs
         - ice: support for Earliest TxTime First (ETF) hardware offload
         - idpf: support basic XDP functionalities and XSk
      - Broadcom (bnxt):
         - support Hyper-V VF ID
         - dynamic SRIOV resource allocations for RoCE
      - Meta (fbnic):
         - support queue API, zero-copy Rx and Tx
         - support basic XDP functionalities
         - devlink health support for FW crashes and OTP mem corruptions
         - expand hardware stats coverage to FEC, PHY, and Pause
      - Wangxun:
         - support ethtool coalesce options
         - support for multiple RSS contexts

   - Ethernet virtual:
      - Macsec:
         - replace custom netlink attribute checks with policy-level
           checks
      - Bonding:
         - support aggregator selection based on port priority
      - Microsoft vNIC:
         - use page pool fragments for RX buffers instead of full pages
           to improve memory efficiency

   - Ethernet NICs consumer, and embedded:
      - Qualcomm: support Ethernet function for IPQ9574 SoC
      - Airoha: implement wlan offloading via NPU
      - Freescale
         - enetc: add NETC timer PTP driver and add PTP support
         - fec: enable the Jumbo frame support for i.MX8QM
      - Renesas (R-Car S4):
         - support HW offloading for layer 2 switching
         - support for RZ/{T2H, N2H} SoCs
      - Cadence (macb): support TAPRIO traffic scheduling
      - TI:
         - support for Gigabit ICSS ethernet SoC (icssm-prueth)
      - Synopsys (stmmac): a lot of cleanups

   - Ethernet PHYs:
      - Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS
        driver
      - Support bcm63268 GPHY power control
      - Support for Micrel lan8842 PHY and PTP
      - Support for Aquantia AQR412 and AQR115

   - CAN:
      - a large CAN-XL preparation work
      - reorganize raw_sock and uniqframe struct to minimize memory
        usage
      - rcar_canfd: update the CAN-FD handling

   - WiFi:
      - extended Neighbor Awareness Networking (NAN) support
      - S1G channel representation cleanup
      - improve S1G support

   - WiFi drivers:
      - Intel (iwlwifi):
         - major refactor and cleanup
      - Broadcom (brcm80211):
         - support for AP isolation
      - RealTek (rtw88/89) rtw88/89:
         - preparation work for RTL8922DE support
      - MediaTek (mt76):
         - HW restart improvements
         - MLO support
      - Qualcomm/Atheros (ath10k):
         - GTK rekey fixes

   - Bluetooth drivers:
      - btusb: support for several new IDs for MT7925
      - btintel: support for BlazarIW core
      - btintel_pcie: support for _suspend() / _resume()
      - btintel_pcie: support for Scorpious, Panther Lake-H484 IDs"

* tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1536 commits)
  net: stmmac: Add support for Allwinner A523 GMAC200
  dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible
  Revert "Documentation: net: add flow control guide and document ethtool API"
  octeontx2-pf: fix bitmap leak
  octeontx2-vf: fix bitmap leak
  net/mlx5e: Use extack in set rxfh callback
  net/mlx5e: Introduce mlx5e_rss_params for RSS configuration
  net/mlx5e: Introduce mlx5e_rss_init_params
  net/mlx5e: Remove unused mdev param from RSS indir init
  net/mlx5: Improve QoS error messages with actual depth values
  net/mlx5e: Prevent entering switchdev mode with inconsistent netns
  net/mlx5: HWS, Generalize complex matchers
  net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs
  selftests/net: add tcp_port_share to .gitignore
  Revert "net/mlx5e: Update and set Xon/Xoff upon MTU set"
  net: add NUMA awareness to skb_attempt_defer_free()
  net: use llist for sd->defer_list
  net: make softnet_data.defer_count an atomic
  selftests: drv-net: psp: add tests for destroying devices
  selftests: drv-net: psp: add test for auto-adjusting TCP MSS
  ...

7 files changed, 57 insertions, 34 deletions

diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c
index 27a3818885c2..9bc1824d7be6 100644
--- a/drivers/net/can/usb/esd_usb.c
+++ b/drivers/net/can/usb/esd_usb.c
@@ -9,6 +9,7 @@
 #include <linux/can.h>
 #include <linux/can/dev.h>
 #include <linux/can/error.h>
+#include <linux/err.h>
 #include <linux/ethtool.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
@@ -274,6 +275,7 @@ struct esd_usb {
 	int net_count;
 	u32 version;
 	int rxinitdone;
+	int in_usb_disconnect;
 	void *rxbuf[ESD_USB_MAX_RX_URBS];
 	dma_addr_t rxbuf_dma[ESD_USB_MAX_RX_URBS];
 };
@@ -480,7 +482,7 @@ static void esd_usb_tx_done_msg(struct esd_usb_net_priv *priv,
 static void esd_usb_read_bulk_callback(struct urb *urb)
 {
 	struct esd_usb *dev = urb->context;
-	int retval;
+	int err;
 	int pos = 0;
 	int i;
 
@@ -496,7 +498,7 @@ static void esd_usb_read_bulk_callback(struct urb *urb)
 
 	default:
 		dev_info(dev->udev->dev.parent,
-			 "Rx URB aborted (%d)\n", urb->status);
+			 "Rx URB aborted (%pe)\n", ERR_PTR(urb->status));
 		goto resubmit_urb;
 	}
 
@@ -539,15 +541,15 @@ resubmit_urb:
 			  urb->transfer_buffer, ESD_USB_RX_BUFFER_SIZE,
 			  esd_usb_read_bulk_callback, dev);
 
-	retval = usb_submit_urb(urb, GFP_ATOMIC);
-	if (retval == -ENODEV) {
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err == -ENODEV) {
 		for (i = 0; i < dev->net_count; i++) {
 			if (dev->nets[i])
 				netif_device_detach(dev->nets[i]->netdev);
 		}
-	} else if (retval) {
+	} else if (err) {
 		dev_err(dev->udev->dev.parent,
-			"failed resubmitting read bulk urb: %d\n", retval);
+			"failed resubmitting read bulk urb: %pe\n", ERR_PTR(err));
 	}
 }
 
@@ -572,7 +574,7 @@ static void esd_usb_write_bulk_callback(struct urb *urb)
 		return;
 
 	if (urb->status)
-		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);
+		netdev_info(netdev, "Tx URB aborted (%pe)\n", ERR_PTR(urb->status));
 
 	netif_trans_update(netdev);
 }
@@ -758,7 +760,7 @@ out:
 	if (err == -ENODEV)
 		netif_device_detach(netdev);
 	if (err)
-		netdev_err(netdev, "couldn't start device: %d\n", err);
+		netdev_err(netdev, "couldn't start device: %pe\n", ERR_PTR(err));
 
 	kfree(msg);
 	return err;
@@ -800,7 +802,6 @@ static int esd_usb_open(struct net_device *netdev)
 	/* finally start device */
 	err = esd_usb_start(priv);
 	if (err) {
-		netdev_warn(netdev, "couldn't start device: %d\n", err);
 		close_candev(netdev);
 		return err;
 	}
@@ -923,7 +924,7 @@ static netdev_tx_t esd_usb_start_xmit(struct sk_buff *skb,
 		if (err == -ENODEV)
 			netif_device_detach(netdev);
 		else
-			netdev_warn(netdev, "failed tx_urb %d\n", err);
+			netdev_warn(netdev, "failed tx_urb %pe\n", ERR_PTR(err));
 
 		goto releasebuf;
 	}
@@ -947,10 +948,11 @@ nourbmem:
 	return ret;
 }
 
-static int esd_usb_close(struct net_device *netdev)
+/* Stop interface */
+static int esd_usb_stop(struct esd_usb_net_priv *priv)
 {
-	struct esd_usb_net_priv *priv = netdev_priv(netdev);
 	union esd_usb_msg *msg;
+	int err;
 	int i;
 
 	msg = kmalloc(sizeof(*msg), GFP_KERNEL);
@@ -964,8 +966,11 @@ static int esd_usb_close(struct net_device *netdev)
 	msg->filter.option = ESD_USB_ID_ENABLE; /* start with segment 0 */
 	for (i = 0; i <= ESD_USB_MAX_ID_SEGMENT; i++)
 		msg->filter.mask[i] = 0;
-	if (esd_usb_send_msg(priv->usb, msg) < 0)
-		netdev_err(netdev, "sending idadd message failed\n");
+	err = esd_usb_send_msg(priv->usb, msg);
+	if (err < 0) {
+		netdev_err(priv->netdev, "sending idadd message failed: %pe\n", ERR_PTR(err));
+		goto bail;
+	}
 
 	/* set CAN controller to reset mode */
 	msg->hdr.len = sizeof(struct esd_usb_set_baudrate_msg) / sizeof(u32); /* # of 32bit words */
@@ -973,8 +978,25 @@ static int esd_usb_close(struct net_device *netdev)
 	msg->setbaud.net = priv->index;
 	msg->setbaud.rsvd = 0;
 	msg->setbaud.baud = cpu_to_le32(ESD_USB_NO_BAUDRATE);
-	if (esd_usb_send_msg(priv->usb, msg) < 0)
-		netdev_err(netdev, "sending setbaud message failed\n");
+	err = esd_usb_send_msg(priv->usb, msg);
+	if (err < 0)
+		netdev_err(priv->netdev, "sending setbaud message failed: %pe\n", ERR_PTR(err));
+
+bail:
+	kfree(msg);
+
+	return err;
+}
+
+static int esd_usb_close(struct net_device *netdev)
+{
+	struct esd_usb_net_priv *priv = netdev_priv(netdev);
+	int err = 0;
+
+	if (!priv->usb->in_usb_disconnect) {
+		/* It's moot to try this in usb_disconnect()! */
+		err = esd_usb_stop(priv);
+	}
 
 	priv->can.state = CAN_STATE_STOPPED;
 
@@ -982,9 +1004,7 @@ static int esd_usb_close(struct net_device *netdev)
 
 	close_candev(netdev);
 
-	kfree(msg);
-
-	return 0;
+	return err;
 }
 
 static const struct net_device_ops esd_usb_netdev_ops = {
@@ -1251,14 +1271,14 @@ static int esd_usb_probe_one_net(struct usb_interface *intf, int index)
 
 	err = register_candev(netdev);
 	if (err) {
-		dev_err(&intf->dev, "couldn't register CAN device: %d\n", err);
+		dev_err(&intf->dev, "couldn't register CAN device: %pe\n", ERR_PTR(err));
 		free_candev(netdev);
 		err = -ENOMEM;
 		goto done;
 	}
 
 	dev->nets[index] = priv;
-	netdev_info(netdev, "device %s registered\n", netdev->name);
+	netdev_info(netdev, "registered\n");
 
 done:
 	return err;
@@ -1354,9 +1374,11 @@ static void esd_usb_disconnect(struct usb_interface *intf)
 	usb_set_intfdata(intf, NULL);
 
 	if (dev) {
+		dev->in_usb_disconnect = 1;
 		for (i = 0; i < dev->net_count; i++) {
 			if (dev->nets[i]) {
 				netdev = dev->nets[i]->netdev;
+				netdev_info(netdev, "unregister\n");
 				unregister_netdev(netdev);
 				free_candev(netdev);
 			}
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 6b293a9056c2..9278a1522aae 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -3,8 +3,8 @@
  * CAN driver for PEAK System PCAN-USB adapter
  * Derived from the PCAN project file driver/src/pcan_usb.c
  *
- * Copyright (C) 2003-2010 PEAK System-Technik GmbH
- * Copyright (C) 2011-2012 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2003-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */
@@ -919,7 +919,7 @@ static int pcan_usb_init(struct peak_usb_device *dev)
 					    CAN_CTRLMODE_LOOPBACK;
 	} else {
 		dev_info(dev->netdev->dev.parent,
-			 "Firmware update available. Please contact support@peak-system.com\n");
+			 "Firmware update available. Please contact support.peak@hms-networks.com\n");
 	}
 
 	return 0;
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index dd5caa1c302b..c74302ca7cee 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -3,8 +3,8 @@
  * CAN driver for PEAK System USB adapters
  * Derived from the PCAN project file driver/src/pcan_usb_core.c
  *
- * Copyright (C) 2003-2010 PEAK System-Technik GmbH
- * Copyright (C) 2010-2012 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2003-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */
@@ -24,7 +24,7 @@
 
 #include "pcan_usb_core.h"
 
-MODULE_AUTHOR("Stephane Grosjean <s.grosjean@peak-system.com>");
+MODULE_AUTHOR("Stéphane Grosjean <stephane.grosjean@hms-networks.com>");
 MODULE_DESCRIPTION("CAN driver for PEAK-System USB adapters");
 MODULE_LICENSE("GPL v2");
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.h b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
index abab00930b9d..d1c1897d47b9 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.h
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
@@ -3,8 +3,8 @@
  * CAN driver for PEAK System USB adapters
  * Derived from the PCAN project file driver/src/pcan_usb_core.c
  *
- * Copyright (C) 2003-2010 PEAK System-Technik GmbH
- * Copyright (C) 2010-2012 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2003-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index ebefc274b50a..be84191cde56 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -2,7 +2,8 @@
 /*
  * CAN driver for PEAK System PCAN-USB FD / PCAN-USB Pro FD adapter
  *
- * Copyright (C) 2013-2014 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2013-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  */
 #include <linux/ethtool.h>
 #include <linux/module.h>
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index f736196383ac..7be286293b1a 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -3,8 +3,8 @@
  * CAN driver for PEAK System PCAN-USB Pro adapter
  * Derived from the PCAN project file driver/src/pcan_usbpro.c
  *
- * Copyright (C) 2003-2011 PEAK System-Technik GmbH
- * Copyright (C) 2011-2012 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2003-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  */
 #include <linux/ethtool.h>
 #include <linux/module.h>
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.h b/drivers/net/can/usb/peak_usb/pcan_usb_pro.h
index 28e740af905d..162c7546d3a8 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.h
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.h
@@ -3,8 +3,8 @@
  * CAN driver for PEAK System PCAN-USB Pro adapter
  * Derived from the PCAN project file driver/src/pcan_usbpro_fw.h
  *
- * Copyright (C) 2003-2011 PEAK System-Technik GmbH
- * Copyright (C) 2011-2012 Stephane Grosjean <s.grosjean@peak-system.com>
+ * Copyright (C) 2003-2025 PEAK System-Technik GmbH
+ * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
  */
 #ifndef PCAN_USB_PRO_H
 #define PCAN_USB_PRO_H