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, 259 insertions, 0 deletions

diff --git a/drivers/net/wireless/intersil/orinoco/scan.c b/drivers/net/wireless/intersil/orinoco/scan.c
new file mode 100644
index 000000000..6d1d08485
--- /dev/null
+++ b/drivers/net/wireless/intersil/orinoco/scan.c
@@ -0,0 +1,259 @@
+/* Helpers for managing scan queues
+ *
+ * See copyright notice in main.c
+ */
+
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+
+#include "hermes.h"
+#include "orinoco.h"
+#include "main.h"
+
+#include "scan.h"
+
+#define ZERO_DBM_OFFSET 0x95
+#define MAX_SIGNAL_LEVEL 0x8A
+#define MIN_SIGNAL_LEVEL 0x2F
+
+#define SIGNAL_TO_DBM(x)					\
+	(clamp_t(s32, (x), MIN_SIGNAL_LEVEL, MAX_SIGNAL_LEVEL)	\
+	 - ZERO_DBM_OFFSET)
+#define SIGNAL_TO_MBM(x) (SIGNAL_TO_DBM(x) * 100)
+
+static int symbol_build_supp_rates(u8 *buf, const __le16 *rates)
+{
+	int i;
+	u8 rate;
+
+	buf[0] = WLAN_EID_SUPP_RATES;
+	for (i = 0; i < 5; i++) {
+		rate = le16_to_cpu(rates[i]);
+		/* NULL terminated */
+		if (rate == 0x0)
+			break;
+		buf[i + 2] = rate;
+	}
+	buf[1] = i;
+
+	return i + 2;
+}
+
+static int prism_build_supp_rates(u8 *buf, const u8 *rates)
+{
+	int i;
+
+	buf[0] = WLAN_EID_SUPP_RATES;
+	for (i = 0; i < 8; i++) {
+		/* NULL terminated */
+		if (rates[i] == 0x0)
+			break;
+		buf[i + 2] = rates[i];
+	}
+	buf[1] = i;
+
+	/* We might still have another 2 rates, which need to go in
+	 * extended supported rates */
+	if (i == 8 && rates[i] > 0) {
+		buf[10] = WLAN_EID_EXT_SUPP_RATES;
+		for (; i < 10; i++) {
+			/* NULL terminated */
+			if (rates[i] == 0x0)
+				break;
+			buf[i + 2] = rates[i];
+		}
+		buf[11] = i - 8;
+	}
+
+	return (i < 8) ? i + 2 : i + 4;
+}
+
+static void orinoco_add_hostscan_result(struct orinoco_private *priv,
+					const union hermes_scan_info *bss)
+{
+	struct wiphy *wiphy = priv_to_wiphy(priv);
+	struct ieee80211_channel *channel;
+	struct cfg80211_bss *cbss;
+	u8 *ie;
+	u8 ie_buf[46];
+	u64 timestamp;
+	s32 signal;
+	u16 capability;
+	u16 beacon_interval;
+	int ie_len;
+	int freq;
+	int len;
+
+	len = le16_to_cpu(bss->a.essid_len);
+
+	/* Reconstruct SSID and bitrate IEs to pass up */
+	ie_buf[0] = WLAN_EID_SSID;
+	ie_buf[1] = len;
+	memcpy(&ie_buf[2], bss->a.essid, len);
+
+	ie = ie_buf + len + 2;
+	ie_len = ie_buf[1] + 2;
+	switch (priv->firmware_type) {
+	case FIRMWARE_TYPE_SYMBOL:
+		ie_len += symbol_build_supp_rates(ie, bss->s.rates);
+		break;
+
+	case FIRMWARE_TYPE_INTERSIL:
+		ie_len += prism_build_supp_rates(ie, bss->p.rates);
+		break;
+
+	case FIRMWARE_TYPE_AGERE:
+	default:
+		break;
+	}
+
+	freq = ieee80211_channel_to_frequency(
+		le16_to_cpu(bss->a.channel), NL80211_BAND_2GHZ);
+	channel = ieee80211_get_channel(wiphy, freq);
+	if (!channel) {
+		printk(KERN_DEBUG "Invalid channel designation %04X(%04X)",
+			bss->a.channel, freq);
+		return;	/* Then ignore it for now */
+	}
+	timestamp = 0;
+	capability = le16_to_cpu(bss->a.capabilities);
+	beacon_interval = le16_to_cpu(bss->a.beacon_interv);
+	signal = SIGNAL_TO_MBM(le16_to_cpu(bss->a.level));
+
+	cbss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,
+				   bss->a.bssid, timestamp, capability,
+				   beacon_interval, ie_buf, ie_len, signal,
+				   GFP_KERNEL);
+	cfg80211_put_bss(wiphy, cbss);
+}
+
+void orinoco_add_extscan_result(struct orinoco_private *priv,
+				struct agere_ext_scan_info *bss,
+				size_t len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(priv);
+	struct ieee80211_channel *channel;
+	struct cfg80211_bss *cbss;
+	const u8 *ie;
+	u64 timestamp;
+	s32 signal;
+	u16 capability;
+	u16 beacon_interval;
+	size_t ie_len;
+	int chan, freq;
+
+	ie_len = len - sizeof(*bss);
+	ie = cfg80211_find_ie(WLAN_EID_DS_PARAMS, bss->data, ie_len);
+	chan = ie ? ie[2] : 0;
+	freq = ieee80211_channel_to_frequency(chan, NL80211_BAND_2GHZ);
+	channel = ieee80211_get_channel(wiphy, freq);
+
+	timestamp = le64_to_cpu(bss->timestamp);
+	capability = le16_to_cpu(bss->capabilities);
+	beacon_interval = le16_to_cpu(bss->beacon_interval);
+	ie = bss->data;
+	signal = SIGNAL_TO_MBM(bss->level);
+
+	cbss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,
+				   bss->bssid, timestamp, capability,
+				   beacon_interval, ie, ie_len, signal,
+				   GFP_KERNEL);
+	cfg80211_put_bss(wiphy, cbss);
+}
+
+void orinoco_add_hostscan_results(struct orinoco_private *priv,
+				  unsigned char *buf,
+				  size_t len)
+{
+	int offset;		/* In the scan data */
+	size_t atom_len;
+	bool abort = false;
+
+	switch (priv->firmware_type) {
+	case FIRMWARE_TYPE_AGERE:
+		atom_len = sizeof(struct agere_scan_apinfo);
+		offset = 0;
+		break;
+
+	case FIRMWARE_TYPE_SYMBOL:
+		/* Lack of documentation necessitates this hack.
+		 * Different firmwares have 68 or 76 byte long atoms.
+		 * We try modulo first.  If the length divides by both,
+		 * we check what would be the channel in the second
+		 * frame for a 68-byte atom.  76-byte atoms have 0 there.
+		 * Valid channel cannot be 0.  */
+		if (len % 76)
+			atom_len = 68;
+		else if (len % 68)
+			atom_len = 76;
+		else if (len >= 1292 && buf[68] == 0)
+			atom_len = 76;
+		else
+			atom_len = 68;
+		offset = 0;
+		break;
+
+	case FIRMWARE_TYPE_INTERSIL:
+		offset = 4;
+		if (priv->has_hostscan) {
+			atom_len = le16_to_cpup((__le16 *)buf);
+			/* Sanity check for atom_len */
+			if (atom_len < sizeof(struct prism2_scan_apinfo)) {
+				printk(KERN_ERR "%s: Invalid atom_len in scan "
+				       "data: %zu\n", priv->ndev->name,
+				       atom_len);
+				abort = true;
+				goto scan_abort;
+			}
+		} else
+			atom_len = offsetof(struct prism2_scan_apinfo, atim);
+		break;
+
+	default:
+		abort = true;
+		goto scan_abort;
+	}
+
+	/* Check that we got an whole number of atoms */
+	if ((len - offset) % atom_len) {
+		printk(KERN_ERR "%s: Unexpected scan data length %zu, "
+		       "atom_len %zu, offset %d\n", priv->ndev->name, len,
+		       atom_len, offset);
+		abort = true;
+		goto scan_abort;
+	}
+
+	/* Process the entries one by one */
+	for (; offset + atom_len <= len; offset += atom_len) {
+		union hermes_scan_info *atom;
+
+		atom = (union hermes_scan_info *) (buf + offset);
+
+		orinoco_add_hostscan_result(priv, atom);
+	}
+
+ scan_abort:
+	if (priv->scan_request) {
+		struct cfg80211_scan_info info = {
+			.aborted = abort,
+		};
+
+		cfg80211_scan_done(priv->scan_request, &info);
+		priv->scan_request = NULL;
+	}
+}
+
+void orinoco_scan_done(struct orinoco_private *priv, bool abort)
+{
+	if (priv->scan_request) {
+		struct cfg80211_scan_info info = {
+			.aborted = abort,
+		};
+
+		cfg80211_scan_done(priv->scan_request, &info);
+		priv->scan_request = NULL;
+	}
+}