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, 274 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
new file mode 100644
index 000000000..417af9754
--- /dev/null
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
@@ -0,0 +1,274 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries.
+ * Microchip VCAP API
+ */
+
+#ifndef __VCAP_API_CLIENT__
+#define __VCAP_API_CLIENT__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/flow_offload.h>
+
+#include "vcap_api.h"
+
+/* Client supplied VCAP rule key control part */
+struct vcap_client_keyfield_ctrl {
+	struct list_head list;  /* For insertion into a rule */
+	enum vcap_key_field key;
+	enum vcap_field_type type;
+};
+
+struct vcap_u1_key {
+	u8 value;
+	u8 mask;
+};
+
+struct vcap_u32_key {
+	u32 value;
+	u32 mask;
+};
+
+struct vcap_u48_key {
+	u8 value[6];
+	u8 mask[6];
+};
+
+struct vcap_u56_key {
+	u8 value[7];
+	u8 mask[7];
+};
+
+struct vcap_u64_key {
+	u8 value[8];
+	u8 mask[8];
+};
+
+struct vcap_u72_key {
+	u8 value[9];
+	u8 mask[9];
+};
+
+struct vcap_u112_key {
+	u8 value[14];
+	u8 mask[14];
+};
+
+struct vcap_u128_key {
+	u8 value[16];
+	u8 mask[16];
+};
+
+/* Client supplied VCAP rule field data */
+struct vcap_client_keyfield_data {
+	union {
+		struct vcap_u1_key u1;
+		struct vcap_u32_key u32;
+		struct vcap_u48_key u48;
+		struct vcap_u56_key u56;
+		struct vcap_u64_key u64;
+		struct vcap_u72_key u72;
+		struct vcap_u112_key u112;
+		struct vcap_u128_key u128;
+	};
+};
+
+/* Client supplied VCAP rule key (value, mask) */
+struct vcap_client_keyfield {
+	struct vcap_client_keyfield_ctrl ctrl;
+	struct vcap_client_keyfield_data data;
+};
+
+/* Client supplied VCAP rule action control part */
+struct vcap_client_actionfield_ctrl {
+	struct list_head list;  /* For insertion into a rule */
+	enum vcap_action_field action;
+	enum vcap_field_type type;
+};
+
+struct vcap_u1_action {
+	u8 value;
+};
+
+struct vcap_u32_action {
+	u32 value;
+};
+
+struct vcap_u48_action {
+	u8 value[6];
+};
+
+struct vcap_u56_action {
+	u8 value[7];
+};
+
+struct vcap_u64_action {
+	u8 value[8];
+};
+
+struct vcap_u72_action {
+	u8 value[9];
+};
+
+struct vcap_u112_action {
+	u8 value[14];
+};
+
+struct vcap_u128_action {
+	u8 value[16];
+};
+
+struct vcap_client_actionfield_data {
+	union {
+		struct vcap_u1_action u1;
+		struct vcap_u32_action u32;
+		struct vcap_u48_action u48;
+		struct vcap_u56_action u56;
+		struct vcap_u64_action u64;
+		struct vcap_u72_action u72;
+		struct vcap_u112_action u112;
+		struct vcap_u128_action u128;
+	};
+};
+
+struct vcap_client_actionfield {
+	struct vcap_client_actionfield_ctrl ctrl;
+	struct vcap_client_actionfield_data data;
+};
+
+enum vcap_bit {
+	VCAP_BIT_ANY,
+	VCAP_BIT_0,
+	VCAP_BIT_1
+};
+
+struct vcap_counter {
+	u32 value;
+	bool sticky;
+};
+
+/* Enable/Disable the VCAP instance lookups */
+int vcap_enable_lookups(struct vcap_control *vctrl, struct net_device *ndev,
+			int from_cid, int to_cid, unsigned long cookie,
+			bool enable);
+
+/* VCAP rule operations */
+/* Allocate a rule and fill in the basic information */
+struct vcap_rule *vcap_alloc_rule(struct vcap_control *vctrl,
+				  struct net_device *ndev,
+				  int vcap_chain_id,
+				  enum vcap_user user,
+				  u16 priority,
+				  u32 id);
+/* Free mem of a rule owned by client */
+void vcap_free_rule(struct vcap_rule *rule);
+/* Validate a rule before adding it to the VCAP */
+int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto);
+/* Add rule to a VCAP instance */
+int vcap_add_rule(struct vcap_rule *rule);
+/* Delete rule in a VCAP instance */
+int vcap_del_rule(struct vcap_control *vctrl, struct net_device *ndev, u32 id);
+/* Make a full copy of an existing rule with a new rule id */
+struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);
+/* Get rule from a VCAP instance */
+struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);
+/* Update existing rule */
+int vcap_mod_rule(struct vcap_rule *rule);
+
+/* Update the keyset for the rule */
+int vcap_set_rule_set_keyset(struct vcap_rule *rule,
+			     enum vcap_keyfield_set keyset);
+/* Update the actionset for the rule */
+int vcap_set_rule_set_actionset(struct vcap_rule *rule,
+				enum vcap_actionfield_set actionset);
+/* Set a rule counter id (for certain VCAPs only) */
+void vcap_rule_set_counter_id(struct vcap_rule *rule, u32 counter_id);
+
+/* VCAP rule field operations */
+int vcap_rule_add_key_bit(struct vcap_rule *rule, enum vcap_key_field key,
+			  enum vcap_bit val);
+int vcap_rule_add_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+			  u32 value, u32 mask);
+int vcap_rule_add_key_u48(struct vcap_rule *rule, enum vcap_key_field key,
+			  struct vcap_u48_key *fieldval);
+int vcap_rule_add_key_u72(struct vcap_rule *rule, enum vcap_key_field key,
+			  struct vcap_u72_key *fieldval);
+int vcap_rule_add_key_u128(struct vcap_rule *rule, enum vcap_key_field key,
+			   struct vcap_u128_key *fieldval);
+int vcap_rule_add_action_bit(struct vcap_rule *rule,
+			     enum vcap_action_field action, enum vcap_bit val);
+int vcap_rule_add_action_u32(struct vcap_rule *rule,
+			     enum vcap_action_field action, u32 value);
+
+/* VCAP rule counter operations */
+int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,
+				  struct vcap_counter *ctr, u64 cookie);
+int vcap_rule_set_counter(struct vcap_rule *rule, struct vcap_counter *ctr);
+int vcap_rule_get_counter(struct vcap_rule *rule, struct vcap_counter *ctr);
+
+/* VCAP lookup operations */
+/* Convert a chain id to a VCAP lookup index */
+int vcap_chain_id_to_lookup(struct vcap_admin *admin, int cur_cid);
+/* Lookup a vcap instance using chain id */
+struct vcap_admin *vcap_find_admin(struct vcap_control *vctrl, int cid);
+/* Find information on a key field in a rule */
+const struct vcap_field *vcap_lookup_keyfield(struct vcap_rule *rule,
+					      enum vcap_key_field key);
+/* Find a rule id with a provided cookie */
+int vcap_lookup_rule_by_cookie(struct vcap_control *vctrl, u64 cookie);
+/* Calculate the value used for chaining VCAP rules */
+int vcap_chain_offset(struct vcap_control *vctrl, int from_cid, int to_cid);
+/* Is the next chain id in the following lookup, possible in another VCAP */
+bool vcap_is_next_lookup(struct vcap_control *vctrl, int cur_cid, int next_cid);
+/* Is this chain id the last lookup of all VCAPs */
+bool vcap_is_last_chain(struct vcap_control *vctrl, int cid, bool ingress);
+/* Provide all rules via a callback interface */
+int vcap_rule_iter(struct vcap_control *vctrl,
+		   int (*callback)(void *, struct vcap_rule *), void *arg);
+/* Match a list of keys against the keysets available in a vcap type */
+bool vcap_rule_find_keysets(struct vcap_rule *rule,
+			    struct vcap_keyset_list *matches);
+/* Return the keyset information for the keyset */
+const struct vcap_set *vcap_keyfieldset(struct vcap_control *vctrl,
+					enum vcap_type vt,
+					enum vcap_keyfield_set keyset);
+/* Copy to host byte order */
+void vcap_netbytes_copy(u8 *dst, u8 *src, int count);
+
+/* Convert validation error code into tc extact error message */
+void vcap_set_tc_exterr(struct flow_cls_offload *fco, struct vcap_rule *vrule);
+
+/* Cleanup a VCAP instance */
+int vcap_del_rules(struct vcap_control *vctrl, struct vcap_admin *admin);
+
+/* Add a keyset to a keyset list */
+bool vcap_keyset_list_add(struct vcap_keyset_list *keysetlist,
+			  enum vcap_keyfield_set keyset);
+/* Drop keys in a keylist and any keys that are not supported by the keyset */
+int vcap_filter_rule_keys(struct vcap_rule *rule,
+			  enum vcap_key_field keylist[], int length,
+			  bool drop_unsupported);
+
+/* map keyset id to a string with the keyset name */
+const char *vcap_keyset_name(struct vcap_control *vctrl,
+			     enum vcap_keyfield_set keyset);
+/* map key field id to a string with the key name */
+const char *vcap_keyfield_name(struct vcap_control *vctrl,
+			       enum vcap_key_field key);
+
+/* Modify a 32 bit key field with value and mask in the rule */
+int vcap_rule_mod_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+			  u32 value, u32 mask);
+/* Modify a 32 bit action field with value in the rule */
+int vcap_rule_mod_action_u32(struct vcap_rule *rule,
+			     enum vcap_action_field action,
+			     u32 value);
+
+/* Get a 32 bit key field value and mask from the rule */
+int vcap_rule_get_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+			  u32 *value, u32 *mask);
+
+struct vcap_client_actionfield *
+vcap_find_actionfield(struct vcap_rule *rule, enum vcap_action_field act);
+#endif /* __VCAP_API_CLIENT__ */