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, 322 insertions, 0 deletions

diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
new file mode 100644
index 000000000..821d93c8f
--- /dev/null
+++ b/drivers/infiniband/core/uverbs.h
@@ -0,0 +1,322 @@
+/*
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
+ * Copyright (c) 2005 PathScale, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef UVERBS_H
+#define UVERBS_H
+
+#include <linux/kref.h>
+#include <linux/idr.h>
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/cdev.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/uverbs_std_types.h>
+
+#define UVERBS_MODULE_NAME ib_uverbs
+#include <rdma/uverbs_named_ioctl.h>
+
+static inline void
+ib_uverbs_init_udata(struct ib_udata *udata,
+		     const void __user *ibuf,
+		     void __user *obuf,
+		     size_t ilen, size_t olen)
+{
+	udata->inbuf  = ibuf;
+	udata->outbuf = obuf;
+	udata->inlen  = ilen;
+	udata->outlen = olen;
+}
+
+static inline void
+ib_uverbs_init_udata_buf_or_null(struct ib_udata *udata,
+				 const void __user *ibuf,
+				 void __user *obuf,
+				 size_t ilen, size_t olen)
+{
+	ib_uverbs_init_udata(udata,
+			     ilen ? ibuf : NULL, olen ? obuf : NULL,
+			     ilen, olen);
+}
+
+/*
+ * Our lifetime rules for these structs are the following:
+ *
+ * struct ib_uverbs_device: One reference is held by the module and
+ * released in ib_uverbs_remove_one().  Another reference is taken by
+ * ib_uverbs_open() each time the character special file is opened,
+ * and released in ib_uverbs_release_file() when the file is released.
+ *
+ * struct ib_uverbs_file: One reference is held by the VFS and
+ * released when the file is closed.  Another reference is taken when
+ * an asynchronous event queue file is created and released when the
+ * event file is closed.
+ *
+ * struct ib_uverbs_event_queue: Base structure for
+ * struct ib_uverbs_async_event_file and struct ib_uverbs_completion_event_file.
+ * One reference is held by the VFS and released when the file is closed.
+ * For asynchronous event files, another reference is held by the corresponding
+ * main context file and released when that file is closed.  For completion
+ * event files, a reference is taken when a CQ is created that uses the file,
+ * and released when the CQ is destroyed.
+ */
+
+struct ib_uverbs_device {
+	refcount_t				refcount;
+	u32					num_comp_vectors;
+	struct completion			comp;
+	struct device				dev;
+	/* First group for device attributes, NULL terminated array */
+	const struct attribute_group		*groups[2];
+	struct ib_device	__rcu	       *ib_dev;
+	int					devnum;
+	struct cdev			        cdev;
+	struct rb_root				xrcd_tree;
+	struct mutex				xrcd_tree_mutex;
+	struct srcu_struct			disassociate_srcu;
+	struct mutex				lists_mutex; /* protect lists */
+	struct list_head			uverbs_file_list;
+	struct uverbs_api			*uapi;
+};
+
+struct ib_uverbs_event_queue {
+	spinlock_t				lock;
+	int					is_closed;
+	wait_queue_head_t			poll_wait;
+	struct fasync_struct		       *async_queue;
+	struct list_head			event_list;
+};
+
+struct ib_uverbs_async_event_file {
+	struct ib_uobject			uobj;
+	struct ib_uverbs_event_queue		ev_queue;
+	struct ib_event_handler			event_handler;
+};
+
+struct ib_uverbs_completion_event_file {
+	struct ib_uobject			uobj;
+	struct ib_uverbs_event_queue		ev_queue;
+};
+
+struct ib_uverbs_file {
+	struct kref				ref;
+	struct ib_uverbs_device		       *device;
+	struct mutex				ucontext_lock;
+	/*
+	 * ucontext must be accessed via ib_uverbs_get_ucontext() or with
+	 * ucontext_lock held
+	 */
+	struct ib_ucontext		       *ucontext;
+	struct ib_uverbs_async_event_file      *default_async_file;
+	struct list_head			list;
+
+	/*
+	 * To access the uobjects list hw_destroy_rwsem must be held for write
+	 * OR hw_destroy_rwsem held for read AND uobjects_lock held.
+	 * hw_destroy_rwsem should be called across any destruction of the HW
+	 * object of an associated uobject.
+	 */
+	struct rw_semaphore	hw_destroy_rwsem;
+	spinlock_t		uobjects_lock;
+	struct list_head	uobjects;
+
+	struct mutex umap_lock;
+	struct list_head umaps;
+	struct page *disassociate_page;
+
+	struct xarray		idr;
+};
+
+struct ib_uverbs_event {
+	union {
+		struct ib_uverbs_async_event_desc	async;
+		struct ib_uverbs_comp_event_desc	comp;
+	}					desc;
+	struct list_head			list;
+	struct list_head			obj_list;
+	u32				       *counter;
+};
+
+struct ib_uverbs_mcast_entry {
+	struct list_head	list;
+	union ib_gid 		gid;
+	u16 			lid;
+};
+
+struct ib_uevent_object {
+	struct ib_uobject	uobject;
+	struct ib_uverbs_async_event_file *event_file;
+	/* List member for ib_uverbs_async_event_file list */
+	struct list_head	event_list;
+	u32			events_reported;
+};
+
+struct ib_uxrcd_object {
+	struct ib_uobject	uobject;
+	atomic_t		refcnt;
+};
+
+struct ib_usrq_object {
+	struct ib_uevent_object	uevent;
+	struct ib_uxrcd_object *uxrcd;
+};
+
+struct ib_uqp_object {
+	struct ib_uevent_object	uevent;
+	/* lock for mcast list */
+	struct mutex		mcast_lock;
+	struct list_head 	mcast_list;
+	struct ib_uxrcd_object *uxrcd;
+};
+
+struct ib_uwq_object {
+	struct ib_uevent_object	uevent;
+};
+
+struct ib_ucq_object {
+	struct ib_uevent_object uevent;
+	struct list_head	comp_list;
+	u32			comp_events_reported;
+};
+
+extern const struct file_operations uverbs_event_fops;
+extern const struct file_operations uverbs_async_event_fops;
+void ib_uverbs_init_event_queue(struct ib_uverbs_event_queue *ev_queue);
+void ib_uverbs_init_async_event_file(struct ib_uverbs_async_event_file *ev_file);
+void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue);
+void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res);
+int uverbs_async_event_release(struct inode *inode, struct file *filp);
+
+int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs);
+int ib_init_ucontext(struct uverbs_attr_bundle *attrs);
+
+void ib_uverbs_release_ucq(struct ib_uverbs_completion_event_file *ev_file,
+			   struct ib_ucq_object *uobj);
+void ib_uverbs_release_uevent(struct ib_uevent_object *uobj);
+void ib_uverbs_release_file(struct kref *ref);
+void ib_uverbs_async_handler(struct ib_uverbs_async_event_file *async_file,
+			     __u64 element, __u64 event,
+			     struct list_head *obj_list, u32 *counter);
+
+void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
+void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
+void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
+void ib_uverbs_wq_event_handler(struct ib_event *event, void *context_ptr);
+void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
+int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd,
+			   enum rdma_remove_reason why,
+			   struct uverbs_attr_bundle *attrs);
+
+int uverbs_dealloc_mw(struct ib_mw *mw);
+void ib_uverbs_detach_umcast(struct ib_qp *qp,
+			     struct ib_uqp_object *uobj);
+
+long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+
+struct ib_uverbs_flow_spec {
+	union {
+		union {
+			struct ib_uverbs_flow_spec_hdr hdr;
+			struct {
+				__u32 type;
+				__u16 size;
+				__u16 reserved;
+			};
+		};
+		struct ib_uverbs_flow_spec_eth     eth;
+		struct ib_uverbs_flow_spec_ipv4    ipv4;
+		struct ib_uverbs_flow_spec_esp     esp;
+		struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
+		struct ib_uverbs_flow_spec_ipv6    ipv6;
+		struct ib_uverbs_flow_spec_action_tag	flow_tag;
+		struct ib_uverbs_flow_spec_action_drop	drop;
+		struct ib_uverbs_flow_spec_action_handle action;
+		struct ib_uverbs_flow_spec_action_count flow_count;
+	};
+};
+
+int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
+					  const void *kern_spec_mask,
+					  const void *kern_spec_val,
+					  size_t kern_filter_sz,
+					  union ib_flow_spec *ib_spec);
+
+/*
+ * ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the
+ * PortInfo CapabilityMask, but was extended with unique bits.
+ */
+static inline u32 make_port_cap_flags(const struct ib_port_attr *attr)
+{
+	u32 res;
+
+	/* All IBA CapabilityMask bits are passed through here, except bit 26,
+	 * which is overridden with IP_BASED_GIDS. This is due to a historical
+	 * mistake in the implementation of IP_BASED_GIDS. Otherwise all other
+	 * bits match the IBA definition across all kernel versions.
+	 */
+	res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS;
+
+	if (attr->ip_gids)
+		res |= IB_UVERBS_PCF_IP_BASED_GIDS;
+
+	return res;
+}
+
+static inline struct ib_uverbs_async_event_file *
+ib_uverbs_get_async_event(struct uverbs_attr_bundle *attrs,
+			  u16 id)
+{
+	struct ib_uobject *async_ev_file_uobj;
+	struct ib_uverbs_async_event_file *async_ev_file;
+
+	async_ev_file_uobj = uverbs_attr_get_uobject(attrs, id);
+	if (IS_ERR(async_ev_file_uobj))
+		async_ev_file = READ_ONCE(attrs->ufile->default_async_file);
+	else
+		async_ev_file = container_of(async_ev_file_uobj,
+				       struct ib_uverbs_async_event_file,
+				       uobj);
+	if (async_ev_file)
+		uverbs_uobject_get(&async_ev_file->uobj);
+	return async_ev_file;
+}
+
+void copy_port_attr_to_resp(struct ib_port_attr *attr,
+			    struct ib_uverbs_query_port_resp *resp,
+			    struct ib_device *ib_dev, u8 port_num);
+#endif /* UVERBS_H */