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, 271 insertions, 0 deletions

diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c
new file mode 100644
index 000000000..2a67e33fb
--- /dev/null
+++ b/drivers/pcmcia/sa1111_generic.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/drivers/pcmcia/sa1111_generic.c
+ *
+ * We implement the generic parts of a SA1111 PCMCIA driver.  This
+ * basically means we handle everything except controlling the
+ * power.  Power is machine specific...
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/hardware/sa1111.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include "sa1111_generic.h"
+
+/*
+ * These are offsets from the above base.
+ */
+#define PCCR	0x0000
+#define PCSSR	0x0004
+#define PCSR	0x0008
+
+#define PCSR_S0_READY	(1<<0)
+#define PCSR_S1_READY	(1<<1)
+#define PCSR_S0_DETECT	(1<<2)
+#define PCSR_S1_DETECT	(1<<3)
+#define PCSR_S0_VS1	(1<<4)
+#define PCSR_S0_VS2	(1<<5)
+#define PCSR_S1_VS1	(1<<6)
+#define PCSR_S1_VS2	(1<<7)
+#define PCSR_S0_WP	(1<<8)
+#define PCSR_S1_WP	(1<<9)
+#define PCSR_S0_BVD1	(1<<10)
+#define PCSR_S0_BVD2	(1<<11)
+#define PCSR_S1_BVD1	(1<<12)
+#define PCSR_S1_BVD2	(1<<13)
+
+#define PCCR_S0_RST	(1<<0)
+#define PCCR_S1_RST	(1<<1)
+#define PCCR_S0_FLT	(1<<2)
+#define PCCR_S1_FLT	(1<<3)
+#define PCCR_S0_PWAITEN	(1<<4)
+#define PCCR_S1_PWAITEN	(1<<5)
+#define PCCR_S0_PSE	(1<<6)
+#define PCCR_S1_PSE	(1<<7)
+
+#define PCSSR_S0_SLEEP	(1<<0)
+#define PCSSR_S1_SLEEP	(1<<1)
+
+#define IDX_IRQ_S0_READY_NINT	(0)
+#define IDX_IRQ_S0_CD_VALID	(1)
+#define IDX_IRQ_S0_BVD1_STSCHG	(2)
+#define IDX_IRQ_S1_READY_NINT	(3)
+#define IDX_IRQ_S1_CD_VALID	(4)
+#define IDX_IRQ_S1_BVD1_STSCHG	(5)
+#define NUM_IRQS		(6)
+
+void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+	struct sa1111_pcmcia_socket *s = to_skt(skt);
+	u32 status = readl_relaxed(s->dev->mapbase + PCSR);
+
+	switch (skt->nr) {
+	case 0:
+		state->detect = status & PCSR_S0_DETECT ? 0 : 1;
+		state->ready  = status & PCSR_S0_READY  ? 1 : 0;
+		state->bvd1   = status & PCSR_S0_BVD1   ? 1 : 0;
+		state->bvd2   = status & PCSR_S0_BVD2   ? 1 : 0;
+		state->wrprot = status & PCSR_S0_WP     ? 1 : 0;
+		state->vs_3v  = status & PCSR_S0_VS1    ? 0 : 1;
+		state->vs_Xv  = status & PCSR_S0_VS2    ? 0 : 1;
+		break;
+
+	case 1:
+		state->detect = status & PCSR_S1_DETECT ? 0 : 1;
+		state->ready  = status & PCSR_S1_READY  ? 1 : 0;
+		state->bvd1   = status & PCSR_S1_BVD1   ? 1 : 0;
+		state->bvd2   = status & PCSR_S1_BVD2   ? 1 : 0;
+		state->wrprot = status & PCSR_S1_WP     ? 1 : 0;
+		state->vs_3v  = status & PCSR_S1_VS1    ? 0 : 1;
+		state->vs_Xv  = status & PCSR_S1_VS2    ? 0 : 1;
+		break;
+	}
+}
+
+int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	struct sa1111_pcmcia_socket *s = to_skt(skt);
+	u32 pccr_skt_mask, pccr_set_mask, val;
+	unsigned long flags;
+
+	switch (skt->nr) {
+	case 0:
+		pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
+		break;
+
+	case 1:
+		pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
+		break;
+
+	default:
+		return -1;
+	}
+
+	pccr_set_mask = 0;
+
+	if (state->Vcc != 0)
+		pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
+	if (state->Vcc == 50)
+		pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
+	if (state->flags & SS_RESET)
+		pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
+	if (state->flags & SS_OUTPUT_ENA)
+		pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
+
+	local_irq_save(flags);
+	val = readl_relaxed(s->dev->mapbase + PCCR);
+	val &= ~pccr_skt_mask;
+	val |= pccr_set_mask & pccr_skt_mask;
+	writel_relaxed(val, s->dev->mapbase + PCCR);
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
+	int (*add)(struct soc_pcmcia_socket *))
+{
+	struct sa1111_pcmcia_socket *s;
+	struct clk *clk;
+	int i, ret = 0, irqs[NUM_IRQS];
+
+	clk = devm_clk_get(&dev->dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	for (i = 0; i < NUM_IRQS; i++) {
+		irqs[i] = sa1111_get_irq(dev, i);
+		if (irqs[i] <= 0)
+			return irqs[i] ? : -ENXIO;
+	}
+
+	ops->socket_state = sa1111_pcmcia_socket_state;
+
+	for (i = 0; i < ops->nr; i++) {
+		s = kzalloc(sizeof(*s), GFP_KERNEL);
+		if (!s)
+			return -ENOMEM;
+
+		s->soc.nr = ops->first + i;
+		s->soc.clk = clk;
+
+		soc_pcmcia_init_one(&s->soc, ops, &dev->dev);
+		s->dev = dev;
+		if (s->soc.nr) {
+			s->soc.socket.pci_irq = irqs[IDX_IRQ_S1_READY_NINT];
+			s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S1_CD_VALID];
+			s->soc.stat[SOC_STAT_CD].name = "SA1111 CF card detect";
+			s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S1_BVD1_STSCHG];
+			s->soc.stat[SOC_STAT_BVD1].name = "SA1111 CF BVD1";
+		} else {
+			s->soc.socket.pci_irq = irqs[IDX_IRQ_S0_READY_NINT];
+			s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S0_CD_VALID];
+			s->soc.stat[SOC_STAT_CD].name = "SA1111 PCMCIA card detect";
+			s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S0_BVD1_STSCHG];
+			s->soc.stat[SOC_STAT_BVD1].name = "SA1111 PCMCIA BVD1";
+		}
+
+		ret = add(&s->soc);
+		if (ret == 0) {
+			s->next = dev_get_drvdata(&dev->dev);
+			dev_set_drvdata(&dev->dev, s);
+		} else
+			kfree(s);
+	}
+
+	return ret;
+}
+
+static int pcmcia_probe(struct sa1111_dev *dev)
+{
+	void __iomem *base;
+	int ret;
+
+	ret = sa1111_enable_device(dev);
+	if (ret)
+		return ret;
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
+		sa1111_disable_device(dev);
+		return -EBUSY;
+	}
+
+	base = dev->mapbase;
+
+	/*
+	 * Initialise the suspend state.
+	 */
+	writel_relaxed(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
+	writel_relaxed(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
+
+	ret = -ENODEV;
+#ifdef CONFIG_SA1100_JORNADA720
+	if (machine_is_jornada720())
+		ret = pcmcia_jornada720_init(dev);
+#endif
+#ifdef CONFIG_ASSABET_NEPONSET
+	if (machine_is_assabet())
+		ret = pcmcia_neponset_init(dev);
+#endif
+
+	if (ret) {
+		release_mem_region(dev->res.start, 512);
+		sa1111_disable_device(dev);
+	}
+
+	return ret;
+}
+
+static void pcmcia_remove(struct sa1111_dev *dev)
+{
+	struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	for (; s; s = next) {
+		next = s->next;
+		soc_pcmcia_remove_one(&s->soc);
+		kfree(s);
+	}
+
+	release_mem_region(dev->res.start, 512);
+	sa1111_disable_device(dev);
+}
+
+static struct sa1111_driver pcmcia_driver = {
+	.drv = {
+		.name	= "sa1111-pcmcia",
+	},
+	.devid		= SA1111_DEVID_PCMCIA,
+	.probe		= pcmcia_probe,
+	.remove		= pcmcia_remove,
+};
+
+static int __init sa1111_drv_pcmcia_init(void)
+{
+	return sa1111_driver_register(&pcmcia_driver);
+}
+
+static void __exit sa1111_drv_pcmcia_exit(void)
+{
+	sa1111_driver_unregister(&pcmcia_driver);
+}
+
+fs_initcall(sa1111_drv_pcmcia_init);
+module_exit(sa1111_drv_pcmcia_exit);
+
+MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
+MODULE_LICENSE("GPL");