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, 209 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.h b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.h
new file mode 100644
index 000000000..929c29811
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.h
@@ -0,0 +1,209 @@
+/*
+ * Copyright (c) 2006-2008 Chelsio, 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 _CXGB3_OFFLOAD_H
+#define _CXGB3_OFFLOAD_H
+
+#include <linux/list.h>
+#include <linux/skbuff.h>
+
+#include "l2t.h"
+
+#include "t3cdev.h"
+#include "t3_cpl.h"
+
+struct adapter;
+
+void cxgb3_offload_init(void);
+
+void cxgb3_adapter_ofld(struct adapter *adapter);
+void cxgb3_adapter_unofld(struct adapter *adapter);
+int cxgb3_offload_activate(struct adapter *adapter);
+void cxgb3_offload_deactivate(struct adapter *adapter);
+
+void cxgb3_set_dummy_ops(struct t3cdev *dev);
+
+struct t3cdev *dev2t3cdev(struct net_device *dev);
+
+/*
+ * Client registration.  Users of T3 driver must register themselves.
+ * The T3 driver will call the add function of every client for each T3
+ * adapter activated, passing up the t3cdev ptr.  Each client fills out an
+ * array of callback functions to process CPL messages.
+ */
+
+void cxgb3_register_client(struct cxgb3_client *client);
+void cxgb3_unregister_client(struct cxgb3_client *client);
+void cxgb3_add_clients(struct t3cdev *tdev);
+void cxgb3_remove_clients(struct t3cdev *tdev);
+void cxgb3_event_notify(struct t3cdev *tdev, u32 event, u32 port);
+
+typedef int (*cxgb3_cpl_handler_func)(struct t3cdev *dev,
+				      struct sk_buff *skb, void *ctx);
+
+enum {
+	OFFLOAD_STATUS_UP,
+	OFFLOAD_STATUS_DOWN,
+	OFFLOAD_PORT_DOWN,
+	OFFLOAD_PORT_UP,
+	OFFLOAD_DB_FULL,
+	OFFLOAD_DB_EMPTY,
+	OFFLOAD_DB_DROP
+};
+
+struct cxgb3_client {
+	char *name;
+	void (*add) (struct t3cdev *);
+	void (*remove) (struct t3cdev *);
+	cxgb3_cpl_handler_func *handlers;
+	int (*redirect)(void *ctx, struct dst_entry *old,
+			struct dst_entry *new, struct l2t_entry *l2t);
+	struct list_head client_list;
+	void (*event_handler)(struct t3cdev *tdev, u32 event, u32 port);
+};
+
+/*
+ * TID allocation services.
+ */
+int cxgb3_alloc_atid(struct t3cdev *dev, struct cxgb3_client *client,
+		     void *ctx);
+int cxgb3_alloc_stid(struct t3cdev *dev, struct cxgb3_client *client,
+		     void *ctx);
+void *cxgb3_free_atid(struct t3cdev *dev, int atid);
+void cxgb3_free_stid(struct t3cdev *dev, int stid);
+void cxgb3_insert_tid(struct t3cdev *dev, struct cxgb3_client *client,
+		      void *ctx, unsigned int tid);
+void cxgb3_queue_tid_release(struct t3cdev *dev, unsigned int tid);
+void cxgb3_remove_tid(struct t3cdev *dev, void *ctx, unsigned int tid);
+
+struct t3c_tid_entry {
+	struct cxgb3_client *client;
+	void *ctx;
+};
+
+/* CPL message priority levels */
+enum {
+	CPL_PRIORITY_DATA = 0,	/* data messages */
+	CPL_PRIORITY_SETUP = 1,	/* connection setup messages */
+	CPL_PRIORITY_TEARDOWN = 0,	/* connection teardown messages */
+	CPL_PRIORITY_LISTEN = 1,	/* listen start/stop messages */
+	CPL_PRIORITY_ACK = 1,	/* RX ACK messages */
+	CPL_PRIORITY_CONTROL = 1	/* offload control messages */
+};
+
+/* Flags for return value of CPL message handlers */
+enum {
+	CPL_RET_BUF_DONE = 1, /* buffer processing done, buffer may be freed */
+	CPL_RET_BAD_MSG = 2,  /* bad CPL message (e.g., unknown opcode) */
+	CPL_RET_UNKNOWN_TID = 4	/* unexpected unknown TID */
+};
+
+typedef int (*cpl_handler_func)(struct t3cdev *dev, struct sk_buff *skb);
+
+/*
+ * Returns a pointer to the first byte of the CPL header in an sk_buff that
+ * contains a CPL message.
+ */
+static inline void *cplhdr(struct sk_buff *skb)
+{
+	return skb->data;
+}
+
+void t3_register_cpl_handler(unsigned int opcode, cpl_handler_func h);
+
+union listen_entry {
+	struct t3c_tid_entry t3c_tid;
+	union listen_entry *next;
+};
+
+union active_open_entry {
+	struct t3c_tid_entry t3c_tid;
+	union active_open_entry *next;
+};
+
+/*
+ * Holds the size, base address, free list start, etc of the TID, server TID,
+ * and active-open TID tables for a offload device.
+ * The tables themselves are allocated dynamically.
+ */
+struct tid_info {
+	struct t3c_tid_entry *tid_tab;
+	unsigned int ntids;
+	atomic_t tids_in_use;
+
+	union listen_entry *stid_tab;
+	unsigned int nstids;
+	unsigned int stid_base;
+
+	union active_open_entry *atid_tab;
+	unsigned int natids;
+	unsigned int atid_base;
+
+	/*
+	 * The following members are accessed R/W so we put them in their own
+	 * cache lines.
+	 *
+	 * XXX We could combine the atid fields above with the lock here since
+	 * atids are use once (unlike other tids).  OTOH the above fields are
+	 * usually in cache due to tid_tab.
+	 */
+	spinlock_t atid_lock ____cacheline_aligned_in_smp;
+	union active_open_entry *afree;
+	unsigned int atids_in_use;
+
+	spinlock_t stid_lock ____cacheline_aligned;
+	union listen_entry *sfree;
+	unsigned int stids_in_use;
+};
+
+struct t3c_data {
+	struct list_head list_node;
+	struct t3cdev *dev;
+	unsigned int tx_max_chunk;	/* max payload for TX_DATA */
+	unsigned int max_wrs;	/* max in-flight WRs per connection */
+	unsigned int nmtus;
+	const unsigned short *mtus;
+	struct tid_info tid_maps;
+
+	struct t3c_tid_entry *tid_release_list;
+	spinlock_t tid_release_lock;
+	struct work_struct tid_release_task;
+
+	struct sk_buff *nofail_skb;
+	unsigned int release_list_incomplete;
+};
+
+/*
+ * t3cdev -> t3c_data accessor
+ */
+#define T3C_DATA(dev) (*(struct t3c_data **)&(dev)->l4opt)
+
+#endif