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, 222 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/carl9170/cmd.c b/drivers/net/wireless/ath/carl9170/cmd.c
new file mode 100644
index 000000000..f2b4f537e
--- /dev/null
+++ b/drivers/net/wireless/ath/carl9170/cmd.c
@@ -0,0 +1,222 @@
+/*
+ * Atheros CARL9170 driver
+ *
+ * Basic HW register/memory/command access functions
+ *
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, see
+ * http://www.gnu.org/licenses/.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *    Copyright (c) 2007-2008 Atheros Communications, Inc.
+ *
+ *    Permission to use, copy, modify, and/or distribute this software for any
+ *    purpose with or without fee is hereby granted, provided that the above
+ *    copyright notice and this permission notice appear in all copies.
+ *
+ *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <asm/div64.h>
+#include "carl9170.h"
+#include "cmd.h"
+
+int carl9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val)
+{
+	const __le32 buf[2] = {
+		cpu_to_le32(reg),
+		cpu_to_le32(val),
+	};
+	int err;
+
+	err = carl9170_exec_cmd(ar, CARL9170_CMD_WREG, sizeof(buf),
+				(u8 *) buf, 0, NULL);
+	if (err) {
+		if (net_ratelimit()) {
+			wiphy_err(ar->hw->wiphy, "writing reg %#x "
+				"(val %#x) failed (%d)\n", reg, val, err);
+		}
+	}
+	return err;
+}
+
+int carl9170_read_mreg(struct ar9170 *ar, const int nregs,
+		       const u32 *regs, u32 *out)
+{
+	int i, err;
+	__le32 *offs, *res;
+
+	/* abuse "out" for the register offsets, must be same length */
+	offs = (__le32 *)out;
+	for (i = 0; i < nregs; i++)
+		offs[i] = cpu_to_le32(regs[i]);
+
+	/* also use the same buffer for the input */
+	res = (__le32 *)out;
+
+	err = carl9170_exec_cmd(ar, CARL9170_CMD_RREG,
+				4 * nregs, (u8 *)offs,
+				4 * nregs, (u8 *)res);
+	if (err) {
+		if (net_ratelimit()) {
+			wiphy_err(ar->hw->wiphy, "reading regs failed (%d)\n",
+				  err);
+		}
+		return err;
+	}
+
+	/* convert result to cpu endian */
+	for (i = 0; i < nregs; i++)
+		out[i] = le32_to_cpu(res[i]);
+
+	return 0;
+}
+
+int carl9170_read_reg(struct ar9170 *ar, u32 reg, u32 *val)
+{
+	return carl9170_read_mreg(ar, 1, &reg, val);
+}
+
+int carl9170_echo_test(struct ar9170 *ar, const u32 v)
+{
+	u32 echores;
+	int err;
+
+	err = carl9170_exec_cmd(ar, CARL9170_CMD_ECHO,
+				4, (u8 *)&v,
+				4, (u8 *)&echores);
+	if (err)
+		return err;
+
+	if (v != echores) {
+		wiphy_info(ar->hw->wiphy, "wrong echo %x != %x", v, echores);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+struct carl9170_cmd *carl9170_cmd_buf(struct ar9170 *ar,
+	const enum carl9170_cmd_oids cmd, const unsigned int len)
+{
+	struct carl9170_cmd *tmp;
+
+	tmp = kzalloc(sizeof(struct carl9170_cmd_head) + len, GFP_ATOMIC);
+	if (tmp) {
+		tmp->hdr.cmd = cmd;
+		tmp->hdr.len = len;
+	}
+
+	return tmp;
+}
+
+int carl9170_reboot(struct ar9170 *ar)
+{
+	struct carl9170_cmd *cmd;
+	int err;
+
+	cmd = carl9170_cmd_buf(ar, CARL9170_CMD_REBOOT_ASYNC, 0);
+	if (!cmd)
+		return -ENOMEM;
+
+	err = __carl9170_exec_cmd(ar, cmd, true);
+	return err;
+}
+
+int carl9170_mac_reset(struct ar9170 *ar)
+{
+	return carl9170_exec_cmd(ar, CARL9170_CMD_SWRST,
+				 0, NULL, 0, NULL);
+}
+
+int carl9170_bcn_ctrl(struct ar9170 *ar, const unsigned int vif_id,
+		       const u32 mode, const u32 addr, const u32 len)
+{
+	struct carl9170_cmd *cmd;
+
+	cmd = carl9170_cmd_buf(ar, CARL9170_CMD_BCN_CTRL_ASYNC,
+			       sizeof(struct carl9170_bcn_ctrl_cmd));
+	if (!cmd)
+		return -ENOMEM;
+
+	cmd->bcn_ctrl.vif_id = cpu_to_le32(vif_id);
+	cmd->bcn_ctrl.mode = cpu_to_le32(mode);
+	cmd->bcn_ctrl.bcn_addr = cpu_to_le32(addr);
+	cmd->bcn_ctrl.bcn_len = cpu_to_le32(len);
+
+	return __carl9170_exec_cmd(ar, cmd, true);
+}
+
+int carl9170_collect_tally(struct ar9170 *ar)
+{
+	struct carl9170_tally_rsp tally;
+	struct survey_info *info;
+	unsigned int tick;
+	int err;
+
+	err = carl9170_exec_cmd(ar, CARL9170_CMD_TALLY, 0, NULL,
+				sizeof(tally), (u8 *)&tally);
+	if (err)
+		return err;
+
+	tick = le32_to_cpu(tally.tick);
+	if (tick) {
+		ar->tally.active += le32_to_cpu(tally.active) / tick;
+		ar->tally.cca += le32_to_cpu(tally.cca) / tick;
+		ar->tally.tx_time += le32_to_cpu(tally.tx_time) / tick;
+		ar->tally.rx_total += le32_to_cpu(tally.rx_total);
+		ar->tally.rx_overrun += le32_to_cpu(tally.rx_overrun);
+
+		if (ar->channel) {
+			info = &ar->survey[ar->channel->hw_value];
+			info->time = ar->tally.active;
+			info->time_busy = ar->tally.cca;
+			info->time_tx = ar->tally.tx_time;
+			do_div(info->time, 1000);
+			do_div(info->time_busy, 1000);
+			do_div(info->time_tx, 1000);
+		}
+	}
+	return 0;
+}
+
+int carl9170_powersave(struct ar9170 *ar, const bool ps)
+{
+	struct carl9170_cmd *cmd;
+	u32 state;
+
+	cmd = carl9170_cmd_buf(ar, CARL9170_CMD_PSM_ASYNC,
+			       sizeof(struct carl9170_psm));
+	if (!cmd)
+		return -ENOMEM;
+
+	if (ps) {
+		/* Sleep until next TBTT */
+		state = CARL9170_PSM_SLEEP | 1;
+	} else {
+		/* wake up immediately */
+		state = 1;
+	}
+
+	cmd->psm.state = cpu_to_le32(state);
+	return __carl9170_exec_cmd(ar, cmd, true);
+}