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, 283 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.h b/drivers/net/ethernet/microchip/vcap/vcap_api.h
new file mode 100644
index 000000000..62db270f6
--- /dev/null
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.h
@@ -0,0 +1,283 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries.
+ * Microchip VCAP API
+ */
+
+#ifndef __VCAP_API__
+#define __VCAP_API__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+
+/* Use the generated API model */
+#include "vcap_ag_api.h"
+
+#define VCAP_CID_LOOKUP_SIZE          100000 /* Chains in a lookup */
+#define VCAP_CID_INGRESS_L0          1000000 /* Ingress Stage 1 Lookup 0 */
+#define VCAP_CID_INGRESS_L1          1100000 /* Ingress Stage 1 Lookup 1 */
+#define VCAP_CID_INGRESS_L2          1200000 /* Ingress Stage 1 Lookup 2 */
+#define VCAP_CID_INGRESS_L3          1300000 /* Ingress Stage 1 Lookup 3 */
+#define VCAP_CID_INGRESS_L4          1400000 /* Ingress Stage 1 Lookup 4 */
+#define VCAP_CID_INGRESS_L5          1500000 /* Ingress Stage 1 Lookup 5 */
+
+#define VCAP_CID_PREROUTING_IPV6     3000000 /* Prerouting Stage */
+#define VCAP_CID_PREROUTING          6000000 /* Prerouting Stage */
+
+#define VCAP_CID_INGRESS_STAGE2_L0   8000000 /* Ingress Stage 2 Lookup 0 */
+#define VCAP_CID_INGRESS_STAGE2_L1   8100000 /* Ingress Stage 2 Lookup 1 */
+#define VCAP_CID_INGRESS_STAGE2_L2   8200000 /* Ingress Stage 2 Lookup 2 */
+#define VCAP_CID_INGRESS_STAGE2_L3   8300000 /* Ingress Stage 2 Lookup 3 */
+
+#define VCAP_CID_EGRESS_L0           10000000 /* Egress Lookup 0 */
+#define VCAP_CID_EGRESS_L1           10100000 /* Egress Lookup 1 */
+
+#define VCAP_CID_EGRESS_STAGE2_L0    20000000 /* Egress Stage 2 Lookup 0 */
+#define VCAP_CID_EGRESS_STAGE2_L1    20100000 /* Egress Stage 2 Lookup 1 */
+
+/* Known users of the VCAP API */
+enum vcap_user {
+	VCAP_USER_PTP,
+	VCAP_USER_MRP,
+	VCAP_USER_CFM,
+	VCAP_USER_VLAN,
+	VCAP_USER_QOS,
+	VCAP_USER_VCAP_UTIL,
+	VCAP_USER_TC,
+	VCAP_USER_TC_EXTRA,
+
+	/* add new users above here */
+
+	/* used to define VCAP_USER_MAX below */
+	__VCAP_USER_AFTER_LAST,
+	VCAP_USER_MAX = __VCAP_USER_AFTER_LAST - 1,
+};
+
+/* VCAP information used for displaying data */
+struct vcap_statistics {
+	char *name;
+	int count;
+	const char * const *keyfield_set_names;
+	const char * const *actionfield_set_names;
+	const char * const *keyfield_names;
+	const char * const *actionfield_names;
+};
+
+/* VCAP key/action field type, position and width */
+struct vcap_field {
+	u16 type;
+	u16 width;
+	u16 offset;
+};
+
+/* VCAP keyset or actionset type and width */
+struct vcap_set {
+	u8 type_id;
+	u8 sw_per_item;
+	u8 sw_cnt;
+};
+
+/* VCAP typegroup position and bitvalue */
+struct vcap_typegroup {
+	u16 offset;
+	u16 width;
+	u16 value;
+};
+
+/* VCAP model data */
+struct vcap_info {
+	char *name; /* user-friendly name */
+	u16 rows; /* number of row in instance */
+	u16 sw_count; /* maximum subwords used per rule */
+	u16 sw_width; /* bits per subword in a keyset */
+	u16 sticky_width; /* sticky bits per rule */
+	u16 act_width;  /* bits per subword in an actionset */
+	u16 default_cnt; /* number of default rules */
+	u16 require_cnt_dis; /* not used */
+	u16 version; /* vcap rtl version */
+	const struct vcap_set *keyfield_set; /* keysets */
+	int keyfield_set_size; /* number of keysets */
+	const struct vcap_set *actionfield_set; /* actionsets */
+	int actionfield_set_size; /* number of actionsets */
+	/* map of keys per keyset */
+	const struct vcap_field **keyfield_set_map;
+	/* number of entries in the above map */
+	int *keyfield_set_map_size;
+	/* map of actions per actionset */
+	const struct vcap_field **actionfield_set_map;
+	/* number of entries in the above map */
+	int *actionfield_set_map_size;
+	/* map of keyset typegroups per subword size */
+	const struct vcap_typegroup **keyfield_set_typegroups;
+	/* map of actionset typegroups per subword size */
+	const struct vcap_typegroup **actionfield_set_typegroups;
+};
+
+enum vcap_field_type {
+	VCAP_FIELD_BIT,
+	VCAP_FIELD_U32,
+	VCAP_FIELD_U48,
+	VCAP_FIELD_U56,
+	VCAP_FIELD_U64,
+	VCAP_FIELD_U72,
+	VCAP_FIELD_U112,
+	VCAP_FIELD_U128,
+};
+
+/* VCAP rule data towards the VCAP cache */
+struct vcap_cache_data {
+	u32 *keystream;
+	u32 *maskstream;
+	u32 *actionstream;
+	u32 counter;
+	bool sticky;
+};
+
+/* Selects which part of the rule must be updated */
+enum vcap_selection {
+	VCAP_SEL_ENTRY = 0x01,
+	VCAP_SEL_ACTION = 0x02,
+	VCAP_SEL_COUNTER = 0x04,
+	VCAP_SEL_ALL = 0xff,
+};
+
+/* Commands towards the VCAP cache */
+enum vcap_command {
+	VCAP_CMD_WRITE = 0,
+	VCAP_CMD_READ = 1,
+	VCAP_CMD_MOVE_DOWN = 2,
+	VCAP_CMD_MOVE_UP = 3,
+	VCAP_CMD_INITIALIZE = 4,
+};
+
+enum vcap_rule_error {
+	VCAP_ERR_NONE = 0,  /* No known error */
+	VCAP_ERR_NO_ADMIN,  /* No admin instance */
+	VCAP_ERR_NO_NETDEV,  /* No netdev instance */
+	VCAP_ERR_NO_KEYSET_MATCH, /* No keyset matched the rule keys */
+	VCAP_ERR_NO_ACTIONSET_MATCH, /* No actionset matched the rule actions */
+	VCAP_ERR_NO_PORT_KEYSET_MATCH, /* No port keyset matched the rule keys */
+};
+
+/* Administration of each VCAP instance */
+struct vcap_admin {
+	struct list_head list; /* for insertion in vcap_control */
+	struct list_head rules; /* list of rules */
+	struct list_head enabled; /* list of enabled ports */
+	struct mutex lock; /* control access to rules */
+	enum vcap_type vtype;  /* type of vcap */
+	int vinst; /* instance number within the same type */
+	int first_cid; /* first chain id in this vcap */
+	int last_cid; /* last chain id in this vcap */
+	int tgt_inst; /* hardware instance number */
+	int lookups; /* number of lookups in this vcap type */
+	int lookups_per_instance; /* number of lookups in this instance */
+	int last_valid_addr; /* top of address range to be used */
+	int first_valid_addr; /* bottom of address range to be used */
+	int last_used_addr;  /* address of lowest added rule */
+	bool w32be; /* vcap uses "32bit-word big-endian" encoding */
+	bool ingress; /* chain traffic direction */
+	struct vcap_cache_data cache; /* encoded rule data */
+};
+
+/* Client supplied VCAP rule data */
+struct vcap_rule {
+	int vcap_chain_id; /* chain used for this rule */
+	enum vcap_user user; /* rule owner */
+	u16 priority;
+	u32 id;  /* vcap rule id, must be unique, 0 will auto-generate a value */
+	u64 cookie;  /* used by the client to identify the rule */
+	struct list_head keyfields;  /* list of vcap_client_keyfield */
+	struct list_head actionfields;  /* list of vcap_client_actionfield */
+	enum vcap_keyfield_set keyset; /* keyset used: may be derived from fields */
+	enum vcap_actionfield_set actionset; /* actionset used: may be derived from fields */
+	enum vcap_rule_error exterr; /* extended error - used by TC */
+	u64 client; /* space for client defined data */
+};
+
+/* List of keysets */
+struct vcap_keyset_list {
+	int max; /* size of the keyset list */
+	int cnt; /* count of keysets actually in the list */
+	enum vcap_keyfield_set *keysets; /* the list of keysets */
+};
+
+/* List of actionsets */
+struct vcap_actionset_list {
+	int max; /* size of the actionset list */
+	int cnt; /* count of actionsets actually in the list */
+	enum vcap_actionfield_set *actionsets; /* the list of actionsets */
+};
+
+/* Client output printf-like function with destination */
+struct vcap_output_print {
+	__printf(2, 3)
+	void (*prf)(void *out, const char *fmt, ...);
+	void *dst;
+};
+
+/* Client supplied VCAP callback operations */
+struct vcap_operations {
+	/* validate port keyset operation */
+	enum vcap_keyfield_set (*validate_keyset)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 struct vcap_rule *rule,
+		 struct vcap_keyset_list *kslist,
+		 u16 l3_proto);
+	/* add default rule fields for the selected keyset operations */
+	void (*add_default_fields)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 struct vcap_rule *rule);
+	/* cache operations */
+	void (*cache_erase)
+		(struct vcap_admin *admin);
+	void (*cache_write)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 enum vcap_selection sel,
+		 u32 idx, u32 count);
+	void (*cache_read)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 enum vcap_selection sel,
+		 u32 idx,
+		 u32 count);
+	/* block operations */
+	void (*init)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 u32 addr,
+		 u32 count);
+	void (*update)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 enum vcap_command cmd,
+		 enum vcap_selection sel,
+		 u32 addr);
+	void (*move)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 u32 addr,
+		 int offset,
+		 int count);
+	/* informational */
+	int (*port_info)
+		(struct net_device *ndev,
+		 struct vcap_admin *admin,
+		 struct vcap_output_print *out);
+};
+
+/* VCAP API Client control interface */
+struct vcap_control {
+	struct vcap_operations *ops;  /* client supplied operations */
+	const struct vcap_info *vcaps; /* client supplied vcap models */
+	const struct vcap_statistics *stats; /* client supplied vcap stats */
+	struct list_head list; /* list of vcap instances */
+};
+
+/* Set client control interface on the API */
+int vcap_api_set_client(struct vcap_control *vctrl);
+
+#endif /* __VCAP_API__ */