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/intel/iwlwifi/mvm/quota.c b/drivers/net/wireless/intel/iwlwifi/mvm/quota.c
new file mode 100644
index 000000000..cea1a34f9
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/quota.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2012-2014, 2018, 2021-2022 Intel Corporation
+ * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
+ * Copyright (C) 2016-2017 Intel Deutschland GmbH
+ */
+#include <net/mac80211.h>
+#include "fw-api.h"
+#include "mvm.h"
+
+#define QUOTA_100	IWL_MVM_MAX_QUOTA
+#define QUOTA_LOWLAT_MIN ((QUOTA_100 * IWL_MVM_LOWLAT_QUOTA_MIN_PERCENT) / 100)
+
+struct iwl_mvm_quota_iterator_data {
+	int n_interfaces[MAX_BINDINGS];
+	int colors[MAX_BINDINGS];
+	int low_latency[MAX_BINDINGS];
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	int dbgfs_min[MAX_BINDINGS];
+#endif
+	int n_low_latency_bindings;
+	struct ieee80211_vif *disabled_vif;
+};
+
+static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
+				   struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_quota_iterator_data *data = _data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	u16 id;
+
+	/* skip disabled interfaces here immediately */
+	if (vif == data->disabled_vif)
+		return;
+
+	if (!mvmvif->phy_ctxt)
+		return;
+
+	/* currently, PHY ID == binding ID */
+	id = mvmvif->phy_ctxt->id;
+
+	/* need at least one binding per PHY */
+	BUILD_BUG_ON(NUM_PHY_CTX > MAX_BINDINGS);
+
+	if (WARN_ON_ONCE(id >= MAX_BINDINGS))
+		return;
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_STATION:
+		if (vif->cfg.assoc)
+			break;
+		return;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+		if (mvmvif->ap_ibss_active)
+			break;
+		return;
+	case NL80211_IFTYPE_MONITOR:
+		if (mvmvif->monitor_active)
+			break;
+		return;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		return;
+	default:
+		WARN_ON_ONCE(1);
+		return;
+	}
+
+	if (data->colors[id] < 0)
+		data->colors[id] = mvmvif->phy_ctxt->color;
+	else
+		WARN_ON_ONCE(data->colors[id] != mvmvif->phy_ctxt->color);
+
+	data->n_interfaces[id]++;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvmvif->dbgfs_quota_min)
+		data->dbgfs_min[id] = max(data->dbgfs_min[id],
+					  mvmvif->dbgfs_quota_min);
+#endif
+
+	if (iwl_mvm_vif_low_latency(mvmvif) && !data->low_latency[id]) {
+		data->n_low_latency_bindings++;
+		data->low_latency[id] = true;
+	}
+}
+
+static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
+					 struct iwl_time_quota_cmd *cmd)
+{
+#ifdef CONFIG_NL80211_TESTMODE
+	struct iwl_mvm_vif *mvmvif;
+	int i, phy_id = -1, beacon_int = 0;
+
+	if (!mvm->noa_duration || !mvm->noa_vif)
+		return;
+
+	mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif);
+	if (!mvmvif->ap_ibss_active)
+		return;
+
+	phy_id = mvmvif->phy_ctxt->id;
+	beacon_int = mvm->noa_vif->bss_conf.beacon_int;
+
+	for (i = 0; i < MAX_BINDINGS; i++) {
+		struct iwl_time_quota_data *data =
+					iwl_mvm_quota_cmd_get_quota(mvm, cmd,
+								    i);
+		u32 id_n_c = le32_to_cpu(data->id_and_color);
+		u32 id = (id_n_c & FW_CTXT_ID_MSK) >> FW_CTXT_ID_POS;
+		u32 quota = le32_to_cpu(data->quota);
+
+		if (id != phy_id)
+			continue;
+
+		quota *= (beacon_int - mvm->noa_duration);
+		quota /= beacon_int;
+
+		IWL_DEBUG_QUOTA(mvm, "quota: adjust for NoA from %d to %d\n",
+				le32_to_cpu(data->quota), quota);
+
+		data->quota = cpu_to_le32(quota);
+	}
+#endif
+}
+
+int iwl_mvm_update_quotas(struct iwl_mvm *mvm,
+			  bool force_update,
+			  struct ieee80211_vif *disabled_vif)
+{
+	struct iwl_time_quota_cmd cmd = {};
+	int i, idx, err, num_active_macs, quota, quota_rem, n_non_lowlat;
+	struct iwl_mvm_quota_iterator_data data = {
+		.n_interfaces = {},
+		.colors = { -1, -1, -1, -1 },
+		.disabled_vif = disabled_vif,
+	};
+	struct iwl_time_quota_cmd *last = &mvm->last_quota_cmd;
+	struct iwl_time_quota_data *qdata, *last_data;
+	bool send = false;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (fw_has_capa(&mvm->fw->ucode_capa,
+			IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA))
+		return 0;
+
+	/* update all upon completion */
+	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
+		return 0;
+
+	/* iterator data above must match */
+	BUILD_BUG_ON(MAX_BINDINGS != 4);
+
+	ieee80211_iterate_active_interfaces_atomic(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_quota_iterator, &data);
+
+	/*
+	 * The FW's scheduling session consists of
+	 * IWL_MVM_MAX_QUOTA fragments. Divide these fragments
+	 * equally between all the bindings that require quota
+	 */
+	num_active_macs = 0;
+	for (i = 0; i < MAX_BINDINGS; i++) {
+		qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
+		qdata->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
+		num_active_macs += data.n_interfaces[i];
+	}
+
+	n_non_lowlat = num_active_macs;
+
+	if (data.n_low_latency_bindings == 1) {
+		for (i = 0; i < MAX_BINDINGS; i++) {
+			if (data.low_latency[i]) {
+				n_non_lowlat -= data.n_interfaces[i];
+				break;
+			}
+		}
+	}
+
+	if (data.n_low_latency_bindings == 1 && n_non_lowlat) {
+		/*
+		 * Reserve quota for the low latency binding in case that
+		 * there are several data bindings but only a single
+		 * low latency one. Split the rest of the quota equally
+		 * between the other data interfaces.
+		 */
+		quota = (QUOTA_100 - QUOTA_LOWLAT_MIN) / n_non_lowlat;
+		quota_rem = QUOTA_100 - n_non_lowlat * quota -
+			    QUOTA_LOWLAT_MIN;
+		IWL_DEBUG_QUOTA(mvm,
+				"quota: low-latency binding active, remaining quota per other binding: %d\n",
+				quota);
+	} else if (num_active_macs) {
+		/*
+		 * There are 0 or more than 1 low latency bindings, or all the
+		 * data interfaces belong to the single low latency binding.
+		 * Split the quota equally between the data interfaces.
+		 */
+		quota = QUOTA_100 / num_active_macs;
+		quota_rem = QUOTA_100 % num_active_macs;
+		IWL_DEBUG_QUOTA(mvm,
+				"quota: splitting evenly per binding: %d\n",
+				quota);
+	} else {
+		/* values don't really matter - won't be used */
+		quota = 0;
+		quota_rem = 0;
+	}
+
+	for (idx = 0, i = 0; i < MAX_BINDINGS; i++) {
+		if (data.colors[i] < 0)
+			continue;
+
+		qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, idx);
+
+		qdata->id_and_color =
+			cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i]));
+
+		if (data.n_interfaces[i] <= 0)
+			qdata->quota = cpu_to_le32(0);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+		else if (data.dbgfs_min[i])
+			qdata->quota =
+				cpu_to_le32(data.dbgfs_min[i] * QUOTA_100 / 100);
+#endif
+		else if (data.n_low_latency_bindings == 1 && n_non_lowlat &&
+			 data.low_latency[i])
+			/*
+			 * There is more than one binding, but only one of the
+			 * bindings is in low latency. For this case, allocate
+			 * the minimal required quota for the low latency
+			 * binding.
+			 */
+			qdata->quota = cpu_to_le32(QUOTA_LOWLAT_MIN);
+		else
+			qdata->quota =
+				cpu_to_le32(quota * data.n_interfaces[i]);
+
+		WARN_ONCE(le32_to_cpu(qdata->quota) > QUOTA_100,
+			  "Binding=%d, quota=%u > max=%u\n",
+			  idx, le32_to_cpu(qdata->quota), QUOTA_100);
+
+		qdata->max_duration = cpu_to_le32(0);
+
+		idx++;
+	}
+
+	/* Give the remainder of the session to the first data binding */
+	for (i = 0; i < MAX_BINDINGS; i++) {
+		qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
+		if (le32_to_cpu(qdata->quota) != 0) {
+			le32_add_cpu(&qdata->quota, quota_rem);
+			IWL_DEBUG_QUOTA(mvm,
+					"quota: giving remainder of %d to binding %d\n",
+					quota_rem, i);
+			break;
+		}
+	}
+
+	iwl_mvm_adjust_quota_for_noa(mvm, &cmd);
+
+	/* check that we have non-zero quota for all valid bindings */
+	for (i = 0; i < MAX_BINDINGS; i++) {
+		qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
+		last_data = iwl_mvm_quota_cmd_get_quota(mvm, last, i);
+		if (qdata->id_and_color != last_data->id_and_color)
+			send = true;
+		if (qdata->max_duration != last_data->max_duration)
+			send = true;
+		if (abs((int)le32_to_cpu(qdata->quota) -
+			(int)le32_to_cpu(last_data->quota))
+						> IWL_MVM_QUOTA_THRESHOLD)
+			send = true;
+		if (qdata->id_and_color == cpu_to_le32(FW_CTXT_INVALID))
+			continue;
+		WARN_ONCE(qdata->quota == 0,
+			  "zero quota on binding %d\n", i);
+	}
+
+	if (!send && !force_update) {
+		/* don't send a practically unchanged command, the firmware has
+		 * to re-initialize a lot of state and that can have an adverse
+		 * impact on it
+		 */
+		return 0;
+	}
+
+	err = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
+				   iwl_mvm_quota_cmd_size(mvm), &cmd);
+
+	if (err)
+		IWL_ERR(mvm, "Failed to send quota: %d\n", err);
+	else
+		mvm->last_quota_cmd = cmd;
+	return err;
+}