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, 298 insertions, 0 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_qmath.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_qmath.c
new file mode 100644
index 000000000..45dcd277a
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_qmath.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ */
+
+#include "phy_qmath.h"
+
+/*
+ * Description: This function make 16 bit unsigned multiplication.
+ * To fit the output into 16 bits the 32 bit multiplication result is right
+ * shifted by 16 bits.
+ */
+u16 qm_mulu16(u16 op1, u16 op2)
+{
+	return (u16) (((u32) op1 * (u32) op2) >> 16);
+}
+
+/*
+ * Description: This function make 16 bit multiplication and return the result
+ * in 16 bits. To fit the multiplication result into 16 bits the multiplication
+ * result is right shifted by 15 bits. Right shifting 15 bits instead of 16 bits
+ * is done to remove the extra sign bit formed due to the multiplication.
+ * When both the 16bit inputs are 0x8000 then the output is saturated to
+ * 0x7fffffff.
+ */
+s16 qm_muls16(s16 op1, s16 op2)
+{
+	s32 result;
+	if (op1 == (s16) 0x8000 && op2 == (s16) 0x8000)
+		result = 0x7fffffff;
+	else
+		result = ((s32) (op1) * (s32) (op2));
+
+	return (s16) (result >> 15);
+}
+
+/*
+ * Description: This function add two 32 bit numbers and return the 32bit
+ * result. If the result overflow 32 bits, the output will be saturated to
+ * 32bits.
+ */
+s32 qm_add32(s32 op1, s32 op2)
+{
+	s32 result;
+	result = op1 + op2;
+	if (op1 < 0 && op2 < 0 && result > 0)
+		result = 0x80000000;
+	else if (op1 > 0 && op2 > 0 && result < 0)
+		result = 0x7fffffff;
+
+	return result;
+}
+
+/*
+ * Description: This function add two 16 bit numbers and return the 16bit
+ * result. If the result overflow 16 bits, the output will be saturated to
+ * 16bits.
+ */
+s16 qm_add16(s16 op1, s16 op2)
+{
+	s16 result;
+	s32 temp = (s32) op1 + (s32) op2;
+	if (temp > (s32) 0x7fff)
+		result = (s16) 0x7fff;
+	else if (temp < (s32) 0xffff8000)
+		result = (s16) 0xffff8000;
+	else
+		result = (s16) temp;
+
+	return result;
+}
+
+/*
+ * Description: This function make 16 bit subtraction and return the 16bit
+ * result. If the result overflow 16 bits, the output will be saturated to
+ * 16bits.
+ */
+s16 qm_sub16(s16 op1, s16 op2)
+{
+	s16 result;
+	s32 temp = (s32) op1 - (s32) op2;
+	if (temp > (s32) 0x7fff)
+		result = (s16) 0x7fff;
+	else if (temp < (s32) 0xffff8000)
+		result = (s16) 0xffff8000;
+	else
+		result = (s16) temp;
+
+	return result;
+}
+
+/*
+ * Description: This function make a 32 bit saturated left shift when the
+ * specified shift is +ve. This function will make a 32 bit right shift when
+ * the specified shift is -ve. This function return the result after shifting
+ * operation.
+ */
+s32 qm_shl32(s32 op, int shift)
+{
+	int i;
+	s32 result;
+	result = op;
+	if (shift > 31)
+		shift = 31;
+	else if (shift < -31)
+		shift = -31;
+	if (shift >= 0) {
+		for (i = 0; i < shift; i++)
+			result = qm_add32(result, result);
+	} else {
+		result = result >> (-shift);
+	}
+
+	return result;
+}
+
+/*
+ * Description: This function make a 16 bit saturated left shift when the
+ * specified shift is +ve. This function will make a 16 bit right shift when
+ * the specified shift is -ve. This function return the result after shifting
+ * operation.
+ */
+s16 qm_shl16(s16 op, int shift)
+{
+	int i;
+	s16 result;
+	result = op;
+	if (shift > 15)
+		shift = 15;
+	else if (shift < -15)
+		shift = -15;
+	if (shift > 0) {
+		for (i = 0; i < shift; i++)
+			result = qm_add16(result, result);
+	} else {
+		result = result >> (-shift);
+	}
+
+	return result;
+}
+
+/*
+ * Description: This function make a 16 bit right shift when shift is +ve.
+ * This function make a 16 bit saturated left shift when shift is -ve. This
+ * function return the result of the shift operation.
+ */
+s16 qm_shr16(s16 op, int shift)
+{
+	return qm_shl16(op, -shift);
+}
+
+/*
+ * Description: This function return the number of redundant sign bits in a
+ * 32 bit number. Example: qm_norm32(0x00000080) = 23
+ */
+s16 qm_norm32(s32 op)
+{
+	u16 u16extraSignBits;
+	if (op == 0) {
+		return 31;
+	} else {
+		u16extraSignBits = 0;
+		while ((op >> 31) == (op >> 30)) {
+			u16extraSignBits++;
+			op = op << 1;
+		}
+	}
+	return u16extraSignBits;
+}
+
+/* This table is log2(1+(i/32)) where i=[0:1:32], in q.15 format */
+static const s16 log_table[] = {
+	0,
+	1455,
+	2866,
+	4236,
+	5568,
+	6863,
+	8124,
+	9352,
+	10549,
+	11716,
+	12855,
+	13968,
+	15055,
+	16117,
+	17156,
+	18173,
+	19168,
+	20143,
+	21098,
+	22034,
+	22952,
+	23852,
+	24736,
+	25604,
+	26455,
+	27292,
+	28114,
+	28922,
+	29717,
+	30498,
+	31267,
+	32024,
+	32767
+};
+
+#define LOG_TABLE_SIZE 32       /* log_table size */
+#define LOG2_LOG_TABLE_SIZE 5   /* log2(log_table size) */
+#define Q_LOG_TABLE 15          /* qformat of log_table */
+#define LOG10_2         19728   /* log10(2) in q.16 */
+
+/*
+ * Description:
+ * This routine takes the input number N and its q format qN and compute
+ * the log10(N). This routine first normalizes the input no N.	Then N is in
+ * mag*(2^x) format. mag is any number in the range 2^30-(2^31 - 1).
+ * Then log2(mag * 2^x) = log2(mag) + x is computed. From that
+ * log10(mag * 2^x) = log2(mag * 2^x) * log10(2) is computed.
+ * This routine looks the log2 value in the table considering
+ * LOG2_LOG_TABLE_SIZE+1 MSBs. As the MSB is always 1, only next
+ * LOG2_OF_LOG_TABLE_SIZE MSBs are used for table lookup. Next 16 MSBs are used
+ * for interpolation.
+ * Inputs:
+ * N - number to which log10 has to be found.
+ * qN - q format of N
+ * log10N - address where log10(N) will be written.
+ * qLog10N - address where log10N qformat will be written.
+ * Note/Problem:
+ * For accurate results input should be in normalized or near normalized form.
+ */
+void qm_log10(s32 N, s16 qN, s16 *log10N, s16 *qLog10N)
+{
+	s16 s16norm, s16tableIndex, s16errorApproximation;
+	u16 u16offset;
+	s32 s32log;
+
+	/* normalize the N. */
+	s16norm = qm_norm32(N);
+	N = N << s16norm;
+
+	/* The qformat of N after normalization.
+	 * -30 is added to treat the no as between 1.0 to 2.0
+	 * i.e. after adding the -30 to the qformat the decimal point will be
+	 * just rigtht of the MSB. (i.e. after sign bit and 1st MSB). i.e.
+	 * at the right side of 30th bit.
+	 */
+	qN = qN + s16norm - 30;
+
+	/* take the table index as the LOG2_OF_LOG_TABLE_SIZE bits right of the
+	 * MSB */
+	s16tableIndex = (s16) (N >> (32 - (2 + LOG2_LOG_TABLE_SIZE)));
+
+	/* remove the MSB. the MSB is always 1 after normalization. */
+	s16tableIndex =
+		s16tableIndex & (s16) ((1 << LOG2_LOG_TABLE_SIZE) - 1);
+
+	/* remove the (1+LOG2_OF_LOG_TABLE_SIZE) MSBs in the N. */
+	N = N & ((1 << (32 - (2 + LOG2_LOG_TABLE_SIZE))) - 1);
+
+	/* take the offset as the 16 MSBS after table index.
+	 */
+	u16offset = (u16) (N >> (32 - (2 + LOG2_LOG_TABLE_SIZE + 16)));
+
+	/* look the log value in the table. */
+	s32log = log_table[s16tableIndex];      /* q.15 format */
+
+	/* interpolate using the offset. q.15 format. */
+	s16errorApproximation = (s16) qm_mulu16(u16offset,
+				(u16) (log_table[s16tableIndex + 1] -
+				       log_table[s16tableIndex]));
+
+	 /* q.15 format */
+	s32log = qm_add16((s16) s32log, s16errorApproximation);
+
+	/* adjust for the qformat of the N as
+	 * log2(mag * 2^x) = log2(mag) + x
+	 */
+	s32log = qm_add32(s32log, ((s32) -qN) << 15);   /* q.15 format */
+
+	/* normalize the result. */
+	s16norm = qm_norm32(s32log);
+
+	/* bring all the important bits into lower 16 bits */
+	/* q.15+s16norm-16 format */
+	s32log = qm_shl32(s32log, s16norm - 16);
+
+	/* compute the log10(N) by multiplying log2(N) with log10(2).
+	 * as log10(mag * 2^x) = log2(mag * 2^x) * log10(2)
+	 * log10N in q.15+s16norm-16+1 (LOG10_2 is in q.16)
+	 */
+	*log10N = qm_muls16((s16) s32log, (s16) LOG10_2);
+
+	/* write the q format of the result. */
+	*qLog10N = 15 + s16norm - 16 + 1;
+
+	return;
+}