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, 169 insertions, 0 deletions

diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c
new file mode 100644
index 000000000..185335843
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm_kona_smc.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2013 Broadcom Corporation
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#include <asm/cacheflush.h>
+#include <linux/of_address.h>
+
+#include "bcm_kona_smc.h"
+
+static u32		bcm_smc_buffer_phys;	/* physical address */
+static void __iomem	*bcm_smc_buffer;	/* virtual address */
+
+struct bcm_kona_smc_data {
+	unsigned service_id;
+	unsigned arg0;
+	unsigned arg1;
+	unsigned arg2;
+	unsigned arg3;
+	unsigned result;
+};
+
+static const struct of_device_id bcm_kona_smc_ids[] __initconst = {
+	{.compatible = "brcm,kona-smc"},
+	{.compatible = "bcm,kona-smc"}, /* deprecated name */
+	{},
+};
+
+/* Map in the args buffer area */
+int __init bcm_kona_smc_init(void)
+{
+	struct device_node *node;
+	const __be32 *prop_val;
+	u64 prop_size = 0;
+	unsigned long buffer_size;
+	u32 buffer_phys;
+
+	/* Read buffer addr and size from the device tree node */
+	node = of_find_matching_node(NULL, bcm_kona_smc_ids);
+	if (!node)
+		return -ENODEV;
+
+	prop_val = of_get_address(node, 0, &prop_size, NULL);
+	of_node_put(node);
+	if (!prop_val)
+		return -EINVAL;
+
+	/* We assume space for four 32-bit arguments */
+	if (prop_size < 4 * sizeof(u32) || prop_size > (u64)ULONG_MAX)
+		return -EINVAL;
+	buffer_size = (unsigned long)prop_size;
+
+	buffer_phys = be32_to_cpup(prop_val);
+	if (!buffer_phys)
+		return -EINVAL;
+
+	bcm_smc_buffer = ioremap(buffer_phys, buffer_size);
+	if (!bcm_smc_buffer)
+		return -ENOMEM;
+	bcm_smc_buffer_phys = buffer_phys;
+
+	pr_info("Kona Secure API initialized\n");
+
+	return 0;
+}
+
+/*
+ * int bcm_kona_do_smc(u32 service_id, u32 buffer_addr)
+ *
+ * Only core 0 can run the secure monitor code.  If an "smc" request
+ * is initiated on a different core it must be redirected to core 0
+ * for execution.  We rely on the caller to handle this.
+ *
+ * Each "smc" request supplies a service id and the address of a
+ * buffer containing parameters related to the service to be
+ * performed.  A flags value defines the behavior of the level 2
+ * cache and interrupt handling while the secure monitor executes.
+ *
+ * Parameters to the "smc" request are passed in r4-r6 as follows:
+ *     r4	service id
+ *     r5	flags (SEC_ROM_*)
+ *     r6	physical address of buffer with other parameters
+ *
+ * Execution of an "smc" request produces two distinct results.
+ *
+ * First, the secure monitor call itself (regardless of the specific
+ * service request) can succeed, or can produce an error.  When an
+ * "smc" request completes this value is found in r12; it should
+ * always be SEC_EXIT_NORMAL.
+ *
+ * In addition, the particular service performed produces a result.
+ * The values that should be expected depend on the service.  We
+ * therefore return this value to the caller, so it can handle the
+ * request result appropriately.  This result value is found in r0
+ * when the "smc" request completes.
+ */
+static int bcm_kona_do_smc(u32 service_id, u32 buffer_phys)
+{
+	register u32 ip asm("ip");	/* Also called r12 */
+	register u32 r0 asm("r0");
+	register u32 r4 asm("r4");
+	register u32 r5 asm("r5");
+	register u32 r6 asm("r6");
+
+	r4 = service_id;
+	r5 = 0x3;		/* Keep IRQ and FIQ off in SM */
+	r6 = buffer_phys;
+
+	asm volatile (
+		/* Make sure we got the registers we want */
+		__asmeq("%0", "ip")
+		__asmeq("%1", "r0")
+		__asmeq("%2", "r4")
+		__asmeq("%3", "r5")
+		__asmeq("%4", "r6")
+		".arch_extension sec\n"
+		"	smc    #0\n"
+		: "=r" (ip), "=r" (r0)
+		: "r" (r4), "r" (r5), "r" (r6)
+		: "r1", "r2", "r3", "r7", "lr");
+
+	BUG_ON(ip != SEC_EXIT_NORMAL);
+
+	return r0;
+}
+
+/* __bcm_kona_smc() should only run on CPU 0, with pre-emption disabled */
+static void __bcm_kona_smc(void *info)
+{
+	struct bcm_kona_smc_data *data = info;
+	u32 __iomem *args = bcm_smc_buffer;
+
+	BUG_ON(smp_processor_id() != 0);
+	BUG_ON(!args);
+
+	/* Copy the four 32 bit argument values into the bounce area */
+	writel_relaxed(data->arg0, args++);
+	writel_relaxed(data->arg1, args++);
+	writel_relaxed(data->arg2, args++);
+	writel(data->arg3, args);
+
+	/* Flush caches for input data passed to Secure Monitor */
+	flush_cache_all();
+
+	/* Trap into Secure Monitor and record the request result */
+	data->result = bcm_kona_do_smc(data->service_id, bcm_smc_buffer_phys);
+}
+
+unsigned bcm_kona_smc(unsigned service_id, unsigned arg0, unsigned arg1,
+		  unsigned arg2, unsigned arg3)
+{
+	struct bcm_kona_smc_data data;
+
+	data.service_id = service_id;
+	data.arg0 = arg0;
+	data.arg1 = arg1;
+	data.arg2 = arg2;
+	data.arg3 = arg3;
+	data.result = 0;
+
+	/*
+	 * Due to a limitation of the secure monitor, we must use the SMP
+	 * infrastructure to forward all secure monitor calls to Core 0.
+	 */
+	smp_call_function_single(0, __bcm_kona_smc, &data, 1);
+
+	return data.result;
+}