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, 226 insertions, 0 deletions

diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c
new file mode 100644
index 000000000..c519cc89c
--- /dev/null
+++ b/tools/power/cpupower/utils/helpers/amd.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+#if defined(__i386__) || defined(__x86_64__)
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include <pci/pci.h>
+
+#include "helpers/helpers.h"
+#include "cpufreq.h"
+#include "acpi_cppc.h"
+
+/* ACPI P-States Helper Functions for AMD Processors ***************/
+#define MSR_AMD_PSTATE_STATUS	0xc0010063
+#define MSR_AMD_PSTATE		0xc0010064
+#define MSR_AMD_PSTATE_LIMIT	0xc0010061
+
+union core_pstate {
+	/* pre fam 17h: */
+	struct {
+		unsigned fid:6;
+		unsigned did:3;
+		unsigned vid:7;
+		unsigned res1:6;
+		unsigned nbdid:1;
+		unsigned res2:2;
+		unsigned nbvid:7;
+		unsigned iddval:8;
+		unsigned idddiv:2;
+		unsigned res3:21;
+		unsigned en:1;
+	} pstate;
+	/* since fam 17h: */
+	struct {
+		unsigned fid:8;
+		unsigned did:6;
+		unsigned vid:8;
+		unsigned iddval:8;
+		unsigned idddiv:2;
+		unsigned res1:31;
+		unsigned en:1;
+	} pstatedef;
+	unsigned long long val;
+};
+
+static int get_did(union core_pstate pstate)
+{
+	int t;
+
+	if (cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATEDEF)
+		t = pstate.pstatedef.did;
+	else if (cpupower_cpu_info.family == 0x12)
+		t = pstate.val & 0xf;
+	else
+		t = pstate.pstate.did;
+
+	return t;
+}
+
+static int get_cof(union core_pstate pstate)
+{
+	int t;
+	int fid, did, cof;
+
+	did = get_did(pstate);
+	if (cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATEDEF) {
+		fid = pstate.pstatedef.fid;
+		cof = 200 * fid / did;
+	} else {
+		t = 0x10;
+		fid = pstate.pstate.fid;
+		if (cpupower_cpu_info.family == 0x11)
+			t = 0x8;
+		cof = (100 * (fid + t)) >> did;
+	}
+	return cof;
+}
+
+/* Needs:
+ * cpu          -> the cpu that gets evaluated
+ * boost_states -> how much boost states the machines support
+ *
+ * Fills up:
+ * pstates -> a pointer to an array of size MAX_HW_PSTATES
+ *            must be initialized with zeros.
+ *            All available  HW pstates (including boost states)
+ * no      -> amount of pstates above array got filled up with
+ *
+ * returns zero on success, -1 on failure
+ */
+int decode_pstates(unsigned int cpu, int boost_states,
+		   unsigned long *pstates, int *no)
+{
+	int i, psmax;
+	union core_pstate pstate;
+	unsigned long long val;
+
+	/* Only read out frequencies from HW if HW Pstate is supported,
+	 * otherwise frequencies are exported via ACPI tables.
+	 */
+	if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_HW_PSTATE))
+		return -1;
+
+	if (read_msr(cpu, MSR_AMD_PSTATE_LIMIT, &val))
+		return -1;
+
+	psmax = (val >> 4) & 0x7;
+	psmax += boost_states;
+	for (i = 0; i <= psmax; i++) {
+		if (i >= MAX_HW_PSTATES) {
+			fprintf(stderr, "HW pstates [%d] exceeding max [%d]\n",
+				psmax, MAX_HW_PSTATES);
+			return -1;
+		}
+		if (read_msr(cpu, MSR_AMD_PSTATE + i, &pstate.val))
+			return -1;
+
+		/* The enabled bit (bit 63) is common for all families */
+		if (!pstate.pstatedef.en)
+			continue;
+
+		pstates[i] = get_cof(pstate);
+	}
+	*no = i;
+	return 0;
+}
+
+int amd_pci_get_num_boost_states(int *active, int *states)
+{
+	struct pci_access *pci_acc;
+	struct pci_dev *device;
+	uint8_t val = 0;
+
+	*active = *states = 0;
+
+	device = pci_slot_func_init(&pci_acc, 0x18, 4);
+
+	if (device == NULL)
+		return -ENODEV;
+
+	val = pci_read_byte(device, 0x15c);
+	if (val & 3)
+		*active = 1;
+	else
+		*active = 0;
+	*states = (val >> 2) & 7;
+
+	pci_cleanup(pci_acc);
+	return 0;
+}
+
+/* ACPI P-States Helper Functions for AMD Processors ***************/
+
+/* AMD P-State Helper Functions ************************************/
+enum amd_pstate_value {
+	AMD_PSTATE_HIGHEST_PERF,
+	AMD_PSTATE_MAX_FREQ,
+	AMD_PSTATE_LOWEST_NONLINEAR_FREQ,
+	MAX_AMD_PSTATE_VALUE_READ_FILES,
+};
+
+static const char *amd_pstate_value_files[MAX_AMD_PSTATE_VALUE_READ_FILES] = {
+	[AMD_PSTATE_HIGHEST_PERF] = "amd_pstate_highest_perf",
+	[AMD_PSTATE_MAX_FREQ] = "amd_pstate_max_freq",
+	[AMD_PSTATE_LOWEST_NONLINEAR_FREQ] = "amd_pstate_lowest_nonlinear_freq",
+};
+
+static unsigned long amd_pstate_get_data(unsigned int cpu,
+					 enum amd_pstate_value value)
+{
+	return cpufreq_get_sysfs_value_from_table(cpu,
+						  amd_pstate_value_files,
+						  value,
+						  MAX_AMD_PSTATE_VALUE_READ_FILES);
+}
+
+void amd_pstate_boost_init(unsigned int cpu, int *support, int *active)
+{
+	unsigned long highest_perf, nominal_perf, cpuinfo_min,
+		      cpuinfo_max, amd_pstate_max;
+
+	highest_perf = amd_pstate_get_data(cpu, AMD_PSTATE_HIGHEST_PERF);
+	nominal_perf = acpi_cppc_get_data(cpu, NOMINAL_PERF);
+
+	*support = highest_perf > nominal_perf ? 1 : 0;
+	if (!(*support))
+		return;
+
+	cpufreq_get_hardware_limits(cpu, &cpuinfo_min, &cpuinfo_max);
+	amd_pstate_max = amd_pstate_get_data(cpu, AMD_PSTATE_MAX_FREQ);
+
+	*active = cpuinfo_max == amd_pstate_max ? 1 : 0;
+}
+
+void amd_pstate_show_perf_and_freq(unsigned int cpu, int no_rounding)
+{
+	printf(_("    AMD PSTATE Highest Performance: %lu. Maximum Frequency: "),
+	       amd_pstate_get_data(cpu, AMD_PSTATE_HIGHEST_PERF));
+	/*
+	 * If boost isn't active, the cpuinfo_max doesn't indicate real max
+	 * frequency. So we read it back from amd-pstate sysfs entry.
+	 */
+	print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_MAX_FREQ), no_rounding);
+	printf(".\n");
+
+	printf(_("    AMD PSTATE Nominal Performance: %lu. Nominal Frequency: "),
+	       acpi_cppc_get_data(cpu, NOMINAL_PERF));
+	print_speed(acpi_cppc_get_data(cpu, NOMINAL_FREQ) * 1000,
+		    no_rounding);
+	printf(".\n");
+
+	printf(_("    AMD PSTATE Lowest Non-linear Performance: %lu. Lowest Non-linear Frequency: "),
+	       acpi_cppc_get_data(cpu, LOWEST_NONLINEAR_PERF));
+	print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_LOWEST_NONLINEAR_FREQ),
+		    no_rounding);
+	printf(".\n");
+
+	printf(_("    AMD PSTATE Lowest Performance: %lu. Lowest Frequency: "),
+	       acpi_cppc_get_data(cpu, LOWEST_PERF));
+	print_speed(acpi_cppc_get_data(cpu, LOWEST_FREQ) * 1000, no_rounding);
+	printf(".\n");
+}
+
+/* AMD P-State Helper Functions ************************************/
+#endif /* defined(__i386__) || defined(__x86_64__) */