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, 258 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
new file mode 100644
index 000000000..e4d11fa7f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 2010-2011 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 "hw.h"
+#include "hw-ops.h"
+#include "ar9003_phy.h"
+#include "ar9003_rtt.h"
+
+#define RTT_RESTORE_TIMEOUT          1000
+#define RTT_ACCESS_TIMEOUT           100
+#define RTT_BAD_VALUE                0x0bad0bad
+
+/*
+ * RTT (Radio Retention Table) hardware implementation information
+ *
+ * There is an internal table (i.e. the rtt) for each chain (or bank).
+ * Each table contains 6 entries and each entry is corresponding to
+ * a specific calibration parameter as depicted below.
+ *  0~2 - DC offset DAC calibration: loop, low, high (offsetI/Q_...)
+ *  3   - Filter cal (filterfc)
+ *  4   - RX gain settings
+ *  5   - Peak detector offset calibration (agc_caldac)
+ */
+
+void ar9003_hw_rtt_enable(struct ath_hw *ah)
+{
+	REG_WRITE(ah, AR_PHY_RTT_CTRL, 1);
+}
+
+void ar9003_hw_rtt_disable(struct ath_hw *ah)
+{
+	REG_WRITE(ah, AR_PHY_RTT_CTRL, 0);
+}
+
+void ar9003_hw_rtt_set_mask(struct ath_hw *ah, u32 rtt_mask)
+{
+	REG_RMW_FIELD(ah, AR_PHY_RTT_CTRL,
+		      AR_PHY_RTT_CTRL_RESTORE_MASK, rtt_mask);
+}
+
+bool ar9003_hw_rtt_force_restore(struct ath_hw *ah)
+{
+	if (!ath9k_hw_wait(ah, AR_PHY_RTT_CTRL,
+			   AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE,
+			   0, RTT_RESTORE_TIMEOUT))
+		return false;
+
+	REG_RMW_FIELD(ah, AR_PHY_RTT_CTRL,
+		      AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE, 1);
+
+	if (!ath9k_hw_wait(ah, AR_PHY_RTT_CTRL,
+			   AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE,
+			   0, RTT_RESTORE_TIMEOUT))
+		return false;
+
+	return true;
+}
+
+static void ar9003_hw_rtt_load_hist_entry(struct ath_hw *ah, u8 chain,
+					  u32 index, u32 data28)
+{
+	u32 val;
+
+	val = SM(data28, AR_PHY_RTT_SW_RTT_TABLE_DATA);
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain), val);
+
+	val = SM(0, AR_PHY_RTT_SW_RTT_TABLE_ACCESS) |
+	      SM(1, AR_PHY_RTT_SW_RTT_TABLE_WRITE) |
+	      SM(index, AR_PHY_RTT_SW_RTT_TABLE_ADDR);
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+	udelay(1);
+
+	val |= SM(1, AR_PHY_RTT_SW_RTT_TABLE_ACCESS);
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+	udelay(1);
+
+	if (!ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+			   AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+			   RTT_ACCESS_TIMEOUT))
+		return;
+
+	val &= ~SM(1, AR_PHY_RTT_SW_RTT_TABLE_WRITE);
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+	udelay(1);
+
+	ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+		      AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+		      RTT_ACCESS_TIMEOUT);
+}
+
+void ar9003_hw_rtt_load_hist(struct ath_hw *ah)
+{
+	int chain, i;
+
+	for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+		if (!(ah->caps.rx_chainmask & (1 << chain)))
+			continue;
+		for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) {
+			ar9003_hw_rtt_load_hist_entry(ah, chain, i,
+					      ah->caldata->rtt_table[chain][i]);
+			ath_dbg(ath9k_hw_common(ah), CALIBRATE,
+				"Load RTT value at idx %d, chain %d: 0x%x\n",
+				i, chain, ah->caldata->rtt_table[chain][i]);
+		}
+	}
+}
+
+static void ar9003_hw_patch_rtt(struct ath_hw *ah, int index, int chain)
+{
+	int agc, caldac;
+
+	if (!test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+		return;
+
+	if ((index != 5) || (chain >= 2))
+		return;
+
+	agc = REG_READ_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain),
+			     AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE);
+	if (!agc)
+		return;
+
+	caldac = ah->caldata->caldac[chain];
+	ah->caldata->rtt_table[chain][index] &= 0xFFFF05FF;
+	caldac = (caldac & 0x20) | ((caldac & 0x1F) << 7);
+	ah->caldata->rtt_table[chain][index] |= (caldac << 4);
+}
+
+static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index)
+{
+	u32 val;
+
+	val = SM(0, AR_PHY_RTT_SW_RTT_TABLE_ACCESS) |
+	      SM(0, AR_PHY_RTT_SW_RTT_TABLE_WRITE) |
+	      SM(index, AR_PHY_RTT_SW_RTT_TABLE_ADDR);
+
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+	udelay(1);
+
+	val |= SM(1, AR_PHY_RTT_SW_RTT_TABLE_ACCESS);
+	REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+	udelay(1);
+
+	if (!ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+			   AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+			   RTT_ACCESS_TIMEOUT))
+		return RTT_BAD_VALUE;
+
+	val = MS(REG_READ(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain)),
+		 AR_PHY_RTT_SW_RTT_TABLE_DATA);
+
+
+	return val;
+}
+
+void ar9003_hw_rtt_fill_hist(struct ath_hw *ah)
+{
+	int chain, i;
+
+	for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+		if (!(ah->caps.rx_chainmask & (1 << chain)))
+			continue;
+		for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) {
+			ah->caldata->rtt_table[chain][i] =
+				ar9003_hw_rtt_fill_hist_entry(ah, chain, i);
+
+			ar9003_hw_patch_rtt(ah, i, chain);
+
+			ath_dbg(ath9k_hw_common(ah), CALIBRATE,
+				"RTT value at idx %d, chain %d is: 0x%x\n",
+				i, chain, ah->caldata->rtt_table[chain][i]);
+		}
+	}
+
+	set_bit(RTT_DONE, &ah->caldata->cal_flags);
+}
+
+void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
+{
+	int chain, i;
+
+	for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+		if (!(ah->caps.rx_chainmask & (1 << chain)))
+			continue;
+		for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++)
+			ar9003_hw_rtt_load_hist_entry(ah, chain, i, 0);
+	}
+
+	if (ah->caldata)
+		clear_bit(RTT_DONE, &ah->caldata->cal_flags);
+}
+
+bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+	bool restore;
+
+	if (!ah->caldata)
+		return false;
+
+	if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags)) {
+		if (IS_CHAN_2GHZ(chan)){
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+				      AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+				      ah->caldata->caldac[0]);
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+				      AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+				      ah->caldata->caldac[1]);
+		} else {
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+				      AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+				      ah->caldata->caldac[0]);
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+				      AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+				      ah->caldata->caldac[1]);
+		}
+		REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+			      AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+			      AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+	}
+
+	if (!test_bit(RTT_DONE, &ah->caldata->cal_flags))
+		return false;
+
+	ar9003_hw_rtt_enable(ah);
+
+	if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+		ar9003_hw_rtt_set_mask(ah, 0x30);
+	else
+		ar9003_hw_rtt_set_mask(ah, 0x10);
+
+	if (!ath9k_hw_rfbus_req(ah)) {
+		ath_err(ath9k_hw_common(ah), "Could not stop baseband\n");
+		restore = false;
+		goto fail;
+	}
+
+	ar9003_hw_rtt_load_hist(ah);
+	restore = ar9003_hw_rtt_force_restore(ah);
+
+fail:
+	ath9k_hw_rfbus_done(ah);
+	ar9003_hw_rtt_disable(ah);
+	return restore;
+}