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, 379 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/wil6210/p2p.c b/drivers/net/wireless/ath/wil6210/p2p.c
new file mode 100644
index 000000000..f26bf046d
--- /dev/null
+++ b/drivers/net/wireless/ath/wil6210/p2p.c
@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (c) 2014-2017 Qualcomm Atheros, Inc.
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ */
+
+#include "wil6210.h"
+#include "wmi.h"
+
+#define P2P_WILDCARD_SSID "DIRECT-"
+#define P2P_DMG_SOCIAL_CHANNEL 2
+#define P2P_SEARCH_DURATION_MS 500
+#define P2P_DEFAULT_BI 100
+
+static int wil_p2p_start_listen(struct wil6210_vif *vif)
+{
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	struct wil_p2p_info *p2p = &vif->p2p;
+	u8 channel = p2p->listen_chan.hw_value;
+	int rc;
+
+	lockdep_assert_held(&wil->mutex);
+
+	rc = wmi_p2p_cfg(vif, channel, P2P_DEFAULT_BI);
+	if (rc) {
+		wil_err(wil, "wmi_p2p_cfg failed\n");
+		goto out;
+	}
+
+	rc = wmi_set_ssid(vif, strlen(P2P_WILDCARD_SSID), P2P_WILDCARD_SSID);
+	if (rc) {
+		wil_err(wil, "wmi_set_ssid failed\n");
+		goto out_stop;
+	}
+
+	rc = wmi_start_listen(vif);
+	if (rc) {
+		wil_err(wil, "wmi_start_listen failed\n");
+		goto out_stop;
+	}
+
+	INIT_WORK(&p2p->discovery_expired_work, wil_p2p_listen_expired);
+	mod_timer(&p2p->discovery_timer,
+		  jiffies + msecs_to_jiffies(p2p->listen_duration));
+out_stop:
+	if (rc)
+		wmi_stop_discovery(vif);
+
+out:
+	return rc;
+}
+
+bool wil_p2p_is_social_scan(struct cfg80211_scan_request *request)
+{
+	return (request->n_channels == 1) &&
+	       (request->channels[0]->hw_value == P2P_DMG_SOCIAL_CHANNEL);
+}
+
+int wil_p2p_search(struct wil6210_vif *vif,
+		   struct cfg80211_scan_request *request)
+{
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	int rc;
+	struct wil_p2p_info *p2p = &vif->p2p;
+
+	wil_dbg_misc(wil, "p2p_search: channel %d\n", P2P_DMG_SOCIAL_CHANNEL);
+
+	lockdep_assert_held(&wil->mutex);
+
+	if (p2p->discovery_started) {
+		wil_err(wil, "search failed. discovery already ongoing\n");
+		rc = -EBUSY;
+		goto out;
+	}
+
+	rc = wmi_p2p_cfg(vif, P2P_DMG_SOCIAL_CHANNEL, P2P_DEFAULT_BI);
+	if (rc) {
+		wil_err(wil, "wmi_p2p_cfg failed\n");
+		goto out;
+	}
+
+	rc = wmi_set_ssid(vif, strlen(P2P_WILDCARD_SSID), P2P_WILDCARD_SSID);
+	if (rc) {
+		wil_err(wil, "wmi_set_ssid failed\n");
+		goto out_stop;
+	}
+
+	/* Set application IE to probe request and probe response */
+	rc = wmi_set_ie(vif, WMI_FRAME_PROBE_REQ,
+			request->ie_len, request->ie);
+	if (rc) {
+		wil_err(wil, "wmi_set_ie(WMI_FRAME_PROBE_REQ) failed\n");
+		goto out_stop;
+	}
+
+	/* supplicant doesn't provide Probe Response IEs. As a workaround -
+	 * re-use Probe Request IEs
+	 */
+	rc = wmi_set_ie(vif, WMI_FRAME_PROBE_RESP,
+			request->ie_len, request->ie);
+	if (rc) {
+		wil_err(wil, "wmi_set_ie(WMI_FRAME_PROBE_RESP) failed\n");
+		goto out_stop;
+	}
+
+	rc = wmi_start_search(vif);
+	if (rc) {
+		wil_err(wil, "wmi_start_search failed\n");
+		goto out_stop;
+	}
+
+	p2p->discovery_started = 1;
+	INIT_WORK(&p2p->discovery_expired_work, wil_p2p_search_expired);
+	mod_timer(&p2p->discovery_timer,
+		  jiffies + msecs_to_jiffies(P2P_SEARCH_DURATION_MS));
+
+out_stop:
+	if (rc)
+		wmi_stop_discovery(vif);
+
+out:
+	return rc;
+}
+
+int wil_p2p_listen(struct wil6210_priv *wil, struct wireless_dev *wdev,
+		   unsigned int duration, struct ieee80211_channel *chan,
+		   u64 *cookie)
+{
+	struct wil6210_vif *vif = wdev_to_vif(wil, wdev);
+	struct wil_p2p_info *p2p = &vif->p2p;
+	int rc;
+
+	if (!chan)
+		return -EINVAL;
+
+	wil_dbg_misc(wil, "p2p_listen: duration %d\n", duration);
+
+	mutex_lock(&wil->mutex);
+
+	if (p2p->discovery_started) {
+		wil_err(wil, "discovery already ongoing\n");
+		rc = -EBUSY;
+		goto out;
+	}
+
+	memcpy(&p2p->listen_chan, chan, sizeof(*chan));
+	*cookie = ++p2p->cookie;
+	p2p->listen_duration = duration;
+
+	mutex_lock(&wil->vif_mutex);
+	if (vif->scan_request) {
+		wil_dbg_misc(wil, "Delaying p2p listen until scan done\n");
+		p2p->pending_listen_wdev = wdev;
+		p2p->discovery_started = 1;
+		rc = 0;
+		mutex_unlock(&wil->vif_mutex);
+		goto out;
+	}
+	mutex_unlock(&wil->vif_mutex);
+
+	rc = wil_p2p_start_listen(vif);
+	if (rc)
+		goto out;
+
+	p2p->discovery_started = 1;
+	if (vif->mid == 0)
+		wil->radio_wdev = wdev;
+
+	cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
+				  GFP_KERNEL);
+
+out:
+	mutex_unlock(&wil->mutex);
+	return rc;
+}
+
+u8 wil_p2p_stop_discovery(struct wil6210_vif *vif)
+{
+	struct wil_p2p_info *p2p = &vif->p2p;
+	u8 started = p2p->discovery_started;
+
+	if (p2p->discovery_started) {
+		if (p2p->pending_listen_wdev) {
+			/* discovery not really started, only pending */
+			p2p->pending_listen_wdev = NULL;
+		} else {
+			del_timer_sync(&p2p->discovery_timer);
+			wmi_stop_discovery(vif);
+		}
+		p2p->discovery_started = 0;
+	}
+
+	return started;
+}
+
+int wil_p2p_cancel_listen(struct wil6210_vif *vif, u64 cookie)
+{
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	struct wil_p2p_info *p2p = &vif->p2p;
+	u8 started;
+
+	mutex_lock(&wil->mutex);
+
+	if (cookie != p2p->cookie) {
+		wil_info(wil, "Cookie mismatch: 0x%016llx vs. 0x%016llx\n",
+			 p2p->cookie, cookie);
+		mutex_unlock(&wil->mutex);
+		return -ENOENT;
+	}
+
+	started = wil_p2p_stop_discovery(vif);
+
+	mutex_unlock(&wil->mutex);
+
+	if (!started) {
+		wil_err(wil, "listen not started\n");
+		return -ENOENT;
+	}
+
+	mutex_lock(&wil->vif_mutex);
+	cfg80211_remain_on_channel_expired(vif_to_radio_wdev(wil, vif),
+					   p2p->cookie,
+					   &p2p->listen_chan,
+					   GFP_KERNEL);
+	if (vif->mid == 0)
+		wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
+	mutex_unlock(&wil->vif_mutex);
+	return 0;
+}
+
+void wil_p2p_listen_expired(struct work_struct *work)
+{
+	struct wil_p2p_info *p2p = container_of(work,
+			struct wil_p2p_info, discovery_expired_work);
+	struct wil6210_vif *vif = container_of(p2p,
+			struct wil6210_vif, p2p);
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	u8 started;
+
+	wil_dbg_misc(wil, "p2p_listen_expired\n");
+
+	mutex_lock(&wil->mutex);
+	started = wil_p2p_stop_discovery(vif);
+	mutex_unlock(&wil->mutex);
+
+	if (!started)
+		return;
+
+	mutex_lock(&wil->vif_mutex);
+	cfg80211_remain_on_channel_expired(vif_to_radio_wdev(wil, vif),
+					   p2p->cookie,
+					   &p2p->listen_chan,
+					   GFP_KERNEL);
+	if (vif->mid == 0)
+		wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
+	mutex_unlock(&wil->vif_mutex);
+}
+
+void wil_p2p_search_expired(struct work_struct *work)
+{
+	struct wil_p2p_info *p2p = container_of(work,
+			struct wil_p2p_info, discovery_expired_work);
+	struct wil6210_vif *vif = container_of(p2p,
+			struct wil6210_vif, p2p);
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	u8 started;
+
+	wil_dbg_misc(wil, "p2p_search_expired\n");
+
+	mutex_lock(&wil->mutex);
+	started = wil_p2p_stop_discovery(vif);
+	mutex_unlock(&wil->mutex);
+
+	if (started) {
+		struct cfg80211_scan_info info = {
+			.aborted = false,
+		};
+
+		mutex_lock(&wil->vif_mutex);
+		if (vif->scan_request) {
+			cfg80211_scan_done(vif->scan_request, &info);
+			vif->scan_request = NULL;
+			if (vif->mid == 0)
+				wil->radio_wdev =
+					wil->main_ndev->ieee80211_ptr;
+		}
+		mutex_unlock(&wil->vif_mutex);
+	}
+}
+
+void wil_p2p_delayed_listen_work(struct work_struct *work)
+{
+	struct wil_p2p_info *p2p = container_of(work,
+			struct wil_p2p_info, delayed_listen_work);
+	struct wil6210_vif *vif = container_of(p2p,
+			struct wil6210_vif, p2p);
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	int rc;
+
+	mutex_lock(&wil->mutex);
+
+	wil_dbg_misc(wil, "Checking delayed p2p listen\n");
+	if (!p2p->discovery_started || !p2p->pending_listen_wdev)
+		goto out;
+
+	mutex_lock(&wil->vif_mutex);
+	if (vif->scan_request) {
+		/* another scan started, wait again... */
+		mutex_unlock(&wil->vif_mutex);
+		goto out;
+	}
+	mutex_unlock(&wil->vif_mutex);
+
+	rc = wil_p2p_start_listen(vif);
+
+	mutex_lock(&wil->vif_mutex);
+	if (rc) {
+		cfg80211_remain_on_channel_expired(p2p->pending_listen_wdev,
+						   p2p->cookie,
+						   &p2p->listen_chan,
+						   GFP_KERNEL);
+		if (vif->mid == 0)
+			wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
+	} else {
+		cfg80211_ready_on_channel(p2p->pending_listen_wdev, p2p->cookie,
+					  &p2p->listen_chan,
+					  p2p->listen_duration, GFP_KERNEL);
+		if (vif->mid == 0)
+			wil->radio_wdev = p2p->pending_listen_wdev;
+	}
+	p2p->pending_listen_wdev = NULL;
+	mutex_unlock(&wil->vif_mutex);
+
+out:
+	mutex_unlock(&wil->mutex);
+}
+
+void wil_p2p_stop_radio_operations(struct wil6210_priv *wil)
+{
+	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
+	struct wil_p2p_info *p2p = &vif->p2p;
+	struct cfg80211_scan_info info = {
+		.aborted = true,
+	};
+
+	lockdep_assert_held(&wil->mutex);
+	lockdep_assert_held(&wil->vif_mutex);
+
+	if (wil->radio_wdev != wil->p2p_wdev)
+		goto out;
+
+	if (!p2p->discovery_started) {
+		/* Regular scan on the p2p device */
+		if (vif->scan_request &&
+		    vif->scan_request->wdev == wil->p2p_wdev)
+			wil_abort_scan(vif, true);
+		goto out;
+	}
+
+	/* Search or listen on p2p device */
+	mutex_unlock(&wil->vif_mutex);
+	wil_p2p_stop_discovery(vif);
+	mutex_lock(&wil->vif_mutex);
+
+	if (vif->scan_request) {
+		/* search */
+		cfg80211_scan_done(vif->scan_request, &info);
+		vif->scan_request = NULL;
+	} else {
+		/* listen */
+		cfg80211_remain_on_channel_expired(wil->radio_wdev,
+						   p2p->cookie,
+						   &p2p->listen_chan,
+						   GFP_KERNEL);
+	}
+
+out:
+	wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
+}