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, 257 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/rs.c b/drivers/net/wireless/intel/iwlwifi/fw/rs.c
new file mode 100644
index 000000000..e128d2e07
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/rs.c
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+#include <net/mac80211.h>
+#include "fw/api/rs.h"
+#include "iwl-drv.h"
+#include "iwl-config.h"
+
+#define IWL_DECLARE_RATE_INFO(r) \
+	[IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
+
+/*
+ * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
+ * */
+static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = {
+	IWL_DECLARE_RATE_INFO(1),
+	IWL_DECLARE_RATE_INFO(2),
+	IWL_DECLARE_RATE_INFO(5),
+	IWL_DECLARE_RATE_INFO(11),
+	IWL_DECLARE_RATE_INFO(6),
+	IWL_DECLARE_RATE_INFO(9),
+	IWL_DECLARE_RATE_INFO(12),
+	IWL_DECLARE_RATE_INFO(18),
+	IWL_DECLARE_RATE_INFO(24),
+	IWL_DECLARE_RATE_INFO(36),
+	IWL_DECLARE_RATE_INFO(48),
+	IWL_DECLARE_RATE_INFO(54),
+};
+
+/* mbps, mcs */
+static const struct iwl_rate_mcs_info rate_mcs[IWL_RATE_COUNT] = {
+	{  "1", "BPSK DSSS"},
+	{  "2", "QPSK DSSS"},
+	{"5.5", "BPSK CCK"},
+	{ "11", "QPSK CCK"},
+	{  "6", "BPSK 1/2"},
+	{  "9", "BPSK 1/2"},
+	{ "12", "QPSK 1/2"},
+	{ "18", "QPSK 3/4"},
+	{ "24", "16QAM 1/2"},
+	{ "36", "16QAM 3/4"},
+	{ "48", "64QAM 2/3"},
+	{ "54", "64QAM 3/4"},
+	{ "60", "64QAM 5/6"},
+};
+
+static const char * const ant_name[] = {
+	[ANT_NONE] = "None",
+	[ANT_A]    = "A",
+	[ANT_B]    = "B",
+	[ANT_AB]   = "AB",
+};
+
+static const char * const pretty_bw[] = {
+	"20Mhz",
+	"40Mhz",
+	"80Mhz",
+	"160 Mhz",
+	"320Mhz",
+};
+
+u8 iwl_fw_rate_idx_to_plcp(int idx)
+{
+	return fw_rate_idx_to_plcp[idx];
+}
+IWL_EXPORT_SYMBOL(iwl_fw_rate_idx_to_plcp);
+
+const struct iwl_rate_mcs_info *iwl_rate_mcs(int idx)
+{
+	return &rate_mcs[idx];
+}
+IWL_EXPORT_SYMBOL(iwl_rate_mcs);
+
+const char *iwl_rs_pretty_ant(u8 ant)
+{
+	if (ant >= ARRAY_SIZE(ant_name))
+		return "UNKNOWN";
+
+	return ant_name[ant];
+}
+IWL_EXPORT_SYMBOL(iwl_rs_pretty_ant);
+
+const char *iwl_rs_pretty_bw(int bw)
+{
+	if (bw >= ARRAY_SIZE(pretty_bw))
+		return "unknown bw";
+
+	return pretty_bw[bw];
+}
+IWL_EXPORT_SYMBOL(iwl_rs_pretty_bw);
+
+static u32 iwl_legacy_rate_to_fw_idx(u32 rate_n_flags)
+{
+	int rate = rate_n_flags & RATE_LEGACY_RATE_MSK_V1;
+	int idx;
+	bool ofdm = !(rate_n_flags & RATE_MCS_CCK_MSK_V1);
+	int offset = ofdm ? IWL_FIRST_OFDM_RATE : 0;
+	int last = ofdm ? IWL_RATE_COUNT_LEGACY : IWL_FIRST_OFDM_RATE;
+
+	for (idx = offset; idx < last; idx++)
+		if (iwl_fw_rate_idx_to_plcp(idx) == rate)
+			return idx - offset;
+	return IWL_RATE_INVALID;
+}
+
+u32 iwl_new_rate_from_v1(u32 rate_v1)
+{
+	u32 rate_v2 = 0;
+	u32 dup = 0;
+
+	if (rate_v1 == 0)
+		return rate_v1;
+	/* convert rate */
+	if (rate_v1 & RATE_MCS_HT_MSK_V1) {
+		u32 nss = 0;
+
+		rate_v2 |= RATE_MCS_HT_MSK;
+		rate_v2 |=
+			rate_v1 & RATE_HT_MCS_RATE_CODE_MSK_V1;
+		nss = (rate_v1 & RATE_HT_MCS_MIMO2_MSK) >>
+			RATE_HT_MCS_NSS_POS_V1;
+		rate_v2 |= nss << RATE_MCS_NSS_POS;
+	} else if (rate_v1 & RATE_MCS_VHT_MSK_V1 ||
+		   rate_v1 & RATE_MCS_HE_MSK_V1) {
+		rate_v2 |= rate_v1 & RATE_VHT_MCS_RATE_CODE_MSK;
+
+		rate_v2 |= rate_v1 & RATE_VHT_MCS_MIMO2_MSK;
+
+		if (rate_v1 & RATE_MCS_HE_MSK_V1) {
+			u32 he_type_bits = rate_v1 & RATE_MCS_HE_TYPE_MSK_V1;
+			u32 he_type = he_type_bits >> RATE_MCS_HE_TYPE_POS_V1;
+			u32 he_106t = (rate_v1 & RATE_MCS_HE_106T_MSK_V1) >>
+				RATE_MCS_HE_106T_POS_V1;
+			u32 he_gi_ltf = (rate_v1 & RATE_MCS_HE_GI_LTF_MSK_V1) >>
+				RATE_MCS_HE_GI_LTF_POS;
+
+			if ((he_type_bits == RATE_MCS_HE_TYPE_SU ||
+			     he_type_bits == RATE_MCS_HE_TYPE_EXT_SU) &&
+			    he_gi_ltf == RATE_MCS_HE_SU_4_LTF)
+				/* the new rate have an additional bit to
+				 * represent the value 4 rather then using SGI
+				 * bit for this purpose - as it was done in the old
+				 * rate */
+				he_gi_ltf += (rate_v1 & RATE_MCS_SGI_MSK_V1) >>
+					RATE_MCS_SGI_POS_V1;
+
+			rate_v2 |= he_gi_ltf << RATE_MCS_HE_GI_LTF_POS;
+			rate_v2 |= he_type << RATE_MCS_HE_TYPE_POS;
+			rate_v2 |= he_106t << RATE_MCS_HE_106T_POS;
+			rate_v2 |= rate_v1 & RATE_HE_DUAL_CARRIER_MODE_MSK;
+			rate_v2 |= RATE_MCS_HE_MSK;
+		} else {
+			rate_v2 |= RATE_MCS_VHT_MSK;
+		}
+	/* if legacy format */
+	} else {
+		u32 legacy_rate = iwl_legacy_rate_to_fw_idx(rate_v1);
+
+		if (WARN_ON_ONCE(legacy_rate == IWL_RATE_INVALID))
+			legacy_rate = (rate_v1 & RATE_MCS_CCK_MSK_V1) ?
+				IWL_FIRST_CCK_RATE : IWL_FIRST_OFDM_RATE;
+
+		rate_v2 |= legacy_rate;
+		if (!(rate_v1 & RATE_MCS_CCK_MSK_V1))
+			rate_v2 |= RATE_MCS_LEGACY_OFDM_MSK;
+	}
+
+	/* convert flags */
+	if (rate_v1 & RATE_MCS_LDPC_MSK_V1)
+		rate_v2 |= RATE_MCS_LDPC_MSK;
+	rate_v2 |= (rate_v1 & RATE_MCS_CHAN_WIDTH_MSK_V1) |
+		(rate_v1 & RATE_MCS_ANT_AB_MSK) |
+		(rate_v1 & RATE_MCS_STBC_MSK) |
+		(rate_v1 & RATE_MCS_BF_MSK);
+
+	dup = (rate_v1 & RATE_MCS_DUP_MSK_V1) >> RATE_MCS_DUP_POS_V1;
+	if (dup) {
+		rate_v2 |= RATE_MCS_DUP_MSK;
+		rate_v2 |= dup << RATE_MCS_CHAN_WIDTH_POS;
+	}
+
+	if ((!(rate_v1 & RATE_MCS_HE_MSK_V1)) &&
+	    (rate_v1 & RATE_MCS_SGI_MSK_V1))
+		rate_v2 |= RATE_MCS_SGI_MSK;
+
+	return rate_v2;
+}
+IWL_EXPORT_SYMBOL(iwl_new_rate_from_v1);
+
+int rs_pretty_print_rate(char *buf, int bufsz, const u32 rate)
+{
+	char *type;
+	u8 mcs = 0, nss = 0;
+	u8 ant = (rate & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS;
+	u32 bw = (rate & RATE_MCS_CHAN_WIDTH_MSK) >>
+		RATE_MCS_CHAN_WIDTH_POS;
+	u32 format = rate & RATE_MCS_MOD_TYPE_MSK;
+	bool sgi;
+
+	if (format == RATE_MCS_CCK_MSK ||
+	    format == RATE_MCS_LEGACY_OFDM_MSK) {
+		int legacy_rate = rate & RATE_LEGACY_RATE_MSK;
+		int index = format == RATE_MCS_CCK_MSK ?
+			legacy_rate :
+			legacy_rate + IWL_FIRST_OFDM_RATE;
+
+		return scnprintf(buf, bufsz, "Legacy | ANT: %s Rate: %s Mbps",
+				 iwl_rs_pretty_ant(ant),
+				 index == IWL_RATE_INVALID ? "BAD" :
+				 iwl_rate_mcs(index)->mbps);
+	}
+
+	if (format ==  RATE_MCS_VHT_MSK)
+		type = "VHT";
+	else if (format ==  RATE_MCS_HT_MSK)
+		type = "HT";
+	else if (format == RATE_MCS_HE_MSK)
+		type = "HE";
+	else if (format == RATE_MCS_EHT_MSK)
+		type = "EHT";
+	else
+		type = "Unknown"; /* shouldn't happen */
+
+	mcs = format == RATE_MCS_HT_MSK ?
+		RATE_HT_MCS_INDEX(rate) :
+		rate & RATE_MCS_CODE_MSK;
+	nss = ((rate & RATE_MCS_NSS_MSK)
+	       >> RATE_MCS_NSS_POS) + 1;
+	sgi = format == RATE_MCS_HE_MSK ?
+		iwl_he_is_sgi(rate) :
+		rate & RATE_MCS_SGI_MSK;
+
+	return scnprintf(buf, bufsz,
+			 "0x%x: %s | ANT: %s BW: %s MCS: %d NSS: %d %s%s%s%s%s",
+			 rate, type, iwl_rs_pretty_ant(ant), iwl_rs_pretty_bw(bw), mcs, nss,
+			 (sgi) ? "SGI " : "NGI ",
+			 (rate & RATE_MCS_STBC_MSK) ? "STBC " : "",
+			 (rate & RATE_MCS_LDPC_MSK) ? "LDPC " : "",
+			 (rate & RATE_HE_DUAL_CARRIER_MODE_MSK) ? "DCM " : "",
+			 (rate & RATE_MCS_BF_MSK) ? "BF " : "");
+}
+IWL_EXPORT_SYMBOL(rs_pretty_print_rate);
+
+bool iwl_he_is_sgi(u32 rate_n_flags)
+{
+	u32 type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
+	u32 ltf_gi = rate_n_flags & RATE_MCS_HE_GI_LTF_MSK;
+
+	if (type == RATE_MCS_HE_TYPE_SU ||
+	    type == RATE_MCS_HE_TYPE_EXT_SU)
+		return ltf_gi == RATE_MCS_HE_SU_4_LTF_08_GI;
+	return false;
+}
+IWL_EXPORT_SYMBOL(iwl_he_is_sgi);
+