Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 257 insertions, 0 deletions

diff --git a/drivers/net/ethernet/dec/tulip/21142.c b/drivers/net/ethernet/dec/tulip/21142.c
new file mode 100644
index 000000000..369858272
--- /dev/null
+++ b/drivers/net/ethernet/dec/tulip/21142.c
@@ -0,0 +1,257 @@
+/*
+	drivers/net/ethernet/dec/tulip/21142.c
+
+	Copyright 2000,2001  The Linux Kernel Team
+	Written/copyright 1994-2001 by Donald Becker.
+
+	This software may be used and distributed according to the terms
+	of the GNU General Public License, incorporated herein by reference.
+
+	DC21143 manual "21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller
+	Hardware Reference Manual" is currently available at :
+	http://developer.intel.com/design/network/manuals/278074.htm
+
+	Please submit bugs to http://bugzilla.kernel.org/ .
+*/
+
+#include <linux/delay.h>
+#include "tulip.h"
+
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+u16 t21142_csr14[] =	    { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+   of available transceivers.  */
+void t21142_media_task(struct work_struct *work)
+{
+	struct tulip_private *tp =
+		container_of(work, struct tulip_private, media_work);
+	struct net_device *dev = tp->dev;
+	void __iomem *ioaddr = tp->base_addr;
+	int csr12 = ioread32(ioaddr + CSR12);
+	int next_tick = 60*HZ;
+	int new_csr6 = 0;
+	int csr14 = ioread32(ioaddr + CSR14);
+
+	/* CSR12[LS10,LS100] are not reliable during autonegotiation */
+	if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
+		csr12 |= 6;
+	if (tulip_debug > 2)
+		dev_info(&dev->dev, "21143 negotiation status %08x, %s\n",
+			 csr12, medianame[dev->if_port]);
+	if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+		if (tulip_check_duplex(dev) < 0) {
+			netif_carrier_off(dev);
+			next_tick = 3*HZ;
+		} else {
+			netif_carrier_on(dev);
+			next_tick = 60*HZ;
+		}
+	} else if (tp->nwayset) {
+		/* Don't screw up a negotiated session! */
+		if (tulip_debug > 1)
+			dev_info(&dev->dev,
+				 "Using NWay-set %s media, csr12 %08x\n",
+				 medianame[dev->if_port], csr12);
+	} else if (tp->medialock) {
+			;
+	} else if (dev->if_port == 3) {
+		if (csr12 & 2) {	/* No 100mbps link beat, revert to 10mbps. */
+			if (tulip_debug > 1)
+				dev_info(&dev->dev,
+					 "No 21143 100baseTx link beat, %08x, trying NWay\n",
+					 csr12);
+			t21142_start_nway(dev);
+			next_tick = 3*HZ;
+		}
+	} else if ((csr12 & 0x7000) != 0x5000) {
+		/* Negotiation failed.  Search media types. */
+		if (tulip_debug > 1)
+			dev_info(&dev->dev,
+				 "21143 negotiation failed, status %08x\n",
+				 csr12);
+		if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+			new_csr6 = 0x82420000;
+			dev->if_port = 0;
+			iowrite32(0, ioaddr + CSR13);
+			iowrite32(0x0003FFFF, ioaddr + CSR14);
+			iowrite16(t21142_csr15[dev->if_port], ioaddr + CSR15);
+			iowrite32(t21142_csr13[dev->if_port], ioaddr + CSR13);
+		} else {
+			/* Select 100mbps port to check for link beat. */
+			new_csr6 = 0x83860000;
+			dev->if_port = 3;
+			iowrite32(0, ioaddr + CSR13);
+			iowrite32(0x0003FFFF, ioaddr + CSR14);
+			iowrite16(8, ioaddr + CSR15);
+			iowrite32(1, ioaddr + CSR13);
+		}
+		if (tulip_debug > 1)
+			dev_info(&dev->dev, "Testing new 21143 media %s\n",
+				 medianame[dev->if_port]);
+		if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+			tp->csr6 &= 0x00D5;
+			tp->csr6 |= new_csr6;
+			iowrite32(0x0301, ioaddr + CSR12);
+			tulip_restart_rxtx(tp);
+		}
+		next_tick = 3*HZ;
+	}
+
+	/* mod_timer synchronizes us with potential add_timer calls
+	 * from interrupts.
+	 */
+	mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
+
+void t21142_start_nway(struct net_device *dev)
+{
+	struct tulip_private *tp = netdev_priv(dev);
+	void __iomem *ioaddr = tp->base_addr;
+	int csr14 = ((tp->sym_advertise & 0x0780) << 9)  |
+		((tp->sym_advertise & 0x0020) << 1) | 0xffbf;
+
+	dev->if_port = 0;
+	tp->nway = tp->mediasense = 1;
+	tp->nwayset = tp->lpar = 0;
+	if (tulip_debug > 1)
+		netdev_dbg(dev, "Restarting 21143 autonegotiation, csr14=%08x\n",
+			   csr14);
+	iowrite32(0x0001, ioaddr + CSR13);
+	udelay(100);
+	iowrite32(csr14, ioaddr + CSR14);
+	tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? FullDuplex : 0);
+	iowrite32(tp->csr6, ioaddr + CSR6);
+	if (tp->mtable  &&  tp->mtable->csr15dir) {
+		iowrite32(tp->mtable->csr15dir, ioaddr + CSR15);
+		iowrite32(tp->mtable->csr15val, ioaddr + CSR15);
+	} else
+		iowrite16(0x0008, ioaddr + CSR15);
+	iowrite32(0x1301, ioaddr + CSR12); 		/* Trigger NWAY. */
+}
+
+
+
+void t21142_lnk_change(struct net_device *dev, int csr5)
+{
+	struct tulip_private *tp = netdev_priv(dev);
+	void __iomem *ioaddr = tp->base_addr;
+	int csr12 = ioread32(ioaddr + CSR12);
+	int csr14 = ioread32(ioaddr + CSR14);
+
+	/* CSR12[LS10,LS100] are not reliable during autonegotiation */
+	if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
+		csr12 |= 6;
+	if (tulip_debug > 1)
+		dev_info(&dev->dev,
+			 "21143 link status interrupt %08x, CSR5 %x, %08x\n",
+			 csr12, csr5, csr14);
+
+	/* If NWay finished and we have a negotiated partner capability. */
+	if (tp->nway  &&  !tp->nwayset  &&  (csr12 & 0x7000) == 0x5000) {
+		int setup_done = 0;
+		int negotiated = tp->sym_advertise & (csr12 >> 16);
+		tp->lpar = csr12 >> 16;
+		tp->nwayset = 1;
+		/* If partner cannot negotiate, it is 10Mbps Half Duplex */
+		if (!(csr12 & 0x8000))		dev->if_port = 0;
+		else if (negotiated & 0x0100)	dev->if_port = 5;
+		else if (negotiated & 0x0080)	dev->if_port = 3;
+		else if (negotiated & 0x0040)	dev->if_port = 4;
+		else if (negotiated & 0x0020)	dev->if_port = 0;
+		else {
+			tp->nwayset = 0;
+			if ((csr12 & 2) == 0  &&  (tp->sym_advertise & 0x0180))
+				dev->if_port = 3;
+		}
+		tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
+
+		if (tulip_debug > 1) {
+			if (tp->nwayset)
+				dev_info(&dev->dev,
+					 "Switching to %s based on link negotiation %04x & %04x = %04x\n",
+					 medianame[dev->if_port],
+					 tp->sym_advertise, tp->lpar,
+					 negotiated);
+			else
+				dev_info(&dev->dev,
+					 "Autonegotiation failed, using %s, link beat status %04x\n",
+					 medianame[dev->if_port], csr12);
+		}
+
+		if (tp->mtable) {
+			int i;
+			for (i = 0; i < tp->mtable->leafcount; i++)
+				if (tp->mtable->mleaf[i].media == dev->if_port) {
+					int startup = ! ((tp->chip_id == DC21143 && (tp->revision == 48 || tp->revision == 65)));
+					tp->cur_index = i;
+					tulip_select_media(dev, startup);
+					setup_done = 1;
+					break;
+				}
+		}
+		if ( ! setup_done) {
+			tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
+			if (tp->full_duplex)
+				tp->csr6 |= 0x0200;
+			iowrite32(1, ioaddr + CSR13);
+		}
+#if 0							/* Restart shouldn't be needed. */
+		iowrite32(tp->csr6 | RxOn, ioaddr + CSR6);
+		if (tulip_debug > 2)
+			netdev_dbg(dev, " Restarting Tx and Rx, CSR5 is %08x\n",
+				   ioread32(ioaddr + CSR5));
+#endif
+		tulip_start_rxtx(tp);
+		if (tulip_debug > 2)
+			netdev_dbg(dev, " Setting CSR6 %08x/%x CSR12 %08x\n",
+				   tp->csr6, ioread32(ioaddr + CSR6),
+				   ioread32(ioaddr + CSR12));
+	} else if ((tp->nwayset  &&  (csr5 & 0x08000000) &&
+		    (dev->if_port == 3  ||  dev->if_port == 5) &&
+		    (csr12 & 2) == 2) ||
+		   (tp->nway && (csr5 & (TPLnkFail)))) {
+		/* Link blew? Maybe restart NWay. */
+		del_timer_sync(&tp->timer);
+		t21142_start_nway(dev);
+		tp->timer.expires = RUN_AT(3*HZ);
+		add_timer(&tp->timer);
+	} else if (dev->if_port == 3  ||  dev->if_port == 5) {
+		if (tulip_debug > 1)
+			dev_info(&dev->dev, "21143 %s link beat %s\n",
+				 medianame[dev->if_port],
+				 (csr12 & 2) ? "failed" : "good");
+		if ((csr12 & 2)  &&  ! tp->medialock) {
+			del_timer_sync(&tp->timer);
+			t21142_start_nway(dev);
+			tp->timer.expires = RUN_AT(3*HZ);
+			add_timer(&tp->timer);
+		} else if (dev->if_port == 5)
+			iowrite32(csr14 & ~0x080, ioaddr + CSR14);
+	} else if (dev->if_port == 0  ||  dev->if_port == 4) {
+		if ((csr12 & 4) == 0)
+			dev_info(&dev->dev, "21143 10baseT link beat good\n");
+	} else if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 10mbps sensed media\n");
+		dev->if_port = 0;
+	} else if (tp->nwayset) {
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 using NWay-set %s, csr6 %08x\n",
+				 medianame[dev->if_port], tp->csr6);
+	} else {		/* 100mbps link beat good. */
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 100baseTx sensed media\n");
+		dev->if_port = 3;
+		tp->csr6 = 0x838E0000 | (tp->csr6 & 0x20ff);
+		iowrite32(0x0003FF7F, ioaddr + CSR14);
+		iowrite32(0x0301, ioaddr + CSR12);
+		tulip_restart_rxtx(tp);
+	}
+}
+
+