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, 267 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
new file mode 100644
index 000000000..e8d8c5cb1
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
@@ -0,0 +1,267 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DC_LINK_DP_H__
+#define __DC_LINK_DP_H__
+
+#define LINK_TRAINING_ATTEMPTS 4
+#define LINK_TRAINING_RETRY_DELAY 50 /* ms */
+#define LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD 3200 /*us*/
+#define LINK_AUX_DEFAULT_TIMEOUT_PERIOD 552 /*us*/
+#define MAX_MTP_SLOT_COUNT 64
+#define DP_REPEATER_CONFIGURATION_AND_STATUS_SIZE 0x50
+#define TRAINING_AUX_RD_INTERVAL 100 //us
+#define LINK_AUX_WAKE_TIMEOUT_MS 1500 // Timeout when trying to wake unresponsive DPRX.
+
+struct dc_link;
+struct dc_stream_state;
+struct dc_link_settings;
+
+enum {
+	LINK_TRAINING_MAX_RETRY_COUNT = 5,
+	/* to avoid infinite loop where-in the receiver
+	 * switches between different VS
+	 */
+	LINK_TRAINING_MAX_CR_RETRY = 100,
+	/*
+	 * Some receivers fail to train on first try and are good
+	 * on subsequent tries. 2 retries should be plenty. If we
+	 * don't have a successful training then we don't expect to
+	 * ever get one.
+	 */
+	LINK_TRAINING_MAX_VERIFY_RETRY = 2,
+	PEAK_FACTOR_X1000 = 1006,
+};
+
+struct dc_link_settings dp_get_max_link_cap(struct dc_link *link);
+
+bool dp_verify_link_cap_with_retries(
+	struct dc_link *link,
+	struct dc_link_settings *known_limit_link_setting,
+	int attempts);
+
+bool dp_validate_mode_timing(
+	struct dc_link *link,
+	const struct dc_crtc_timing *timing);
+
+bool decide_edp_link_settings(struct dc_link *link,
+		struct dc_link_settings *link_setting,
+		uint32_t req_bw);
+
+bool decide_link_settings(
+	struct dc_stream_state *stream,
+	struct dc_link_settings *link_setting);
+
+bool perform_link_training_with_retries(
+	const struct dc_link_settings *link_setting,
+	bool skip_video_pattern,
+	int attempts,
+	struct pipe_ctx *pipe_ctx,
+	enum signal_type signal,
+	bool do_fallback);
+
+bool hpd_rx_irq_check_link_loss_status(
+	struct dc_link *link,
+	union hpd_irq_data *hpd_irq_dpcd_data);
+
+bool is_mst_supported(struct dc_link *link);
+
+bool detect_dp_sink_caps(struct dc_link *link);
+
+void detect_edp_sink_caps(struct dc_link *link);
+
+bool is_dp_active_dongle(const struct dc_link *link);
+
+bool is_dp_branch_device(const struct dc_link *link);
+
+bool is_edp_ilr_optimization_required(struct dc_link *link, struct dc_crtc_timing *crtc_timing);
+
+void dp_enable_mst_on_sink(struct dc_link *link, bool enable);
+
+enum dp_panel_mode dp_get_panel_mode(struct dc_link *link);
+void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode);
+
+bool dp_overwrite_extended_receiver_cap(struct dc_link *link);
+
+void dpcd_set_source_specific_data(struct dc_link *link);
+
+void dpcd_write_cable_id_to_dprx(struct dc_link *link);
+
+/* Write DPCD link configuration data. */
+enum dc_status dpcd_set_link_settings(
+	struct dc_link *link,
+	const struct link_training_settings *lt_settings);
+/* Write DPCD drive settings. */
+enum dc_status dpcd_set_lane_settings(
+	struct dc_link *link,
+	const struct link_training_settings *link_training_setting,
+	uint32_t offset);
+/* Read training status and adjustment requests from DPCD. */
+enum dc_status dp_get_lane_status_and_lane_adjust(
+	struct dc_link *link,
+	const struct link_training_settings *link_training_setting,
+	union lane_status ln_status[LANE_COUNT_DP_MAX],
+	union lane_align_status_updated *ln_align,
+	union lane_adjust ln_adjust[LANE_COUNT_DP_MAX],
+	uint32_t offset);
+
+void dp_wait_for_training_aux_rd_interval(
+	struct dc_link *link,
+	uint32_t wait_in_micro_secs);
+
+bool dp_is_cr_done(enum dc_lane_count ln_count,
+	union lane_status *dpcd_lane_status);
+
+enum link_training_result dp_get_cr_failure(enum dc_lane_count ln_count,
+	union lane_status *dpcd_lane_status);
+
+bool dp_is_ch_eq_done(enum dc_lane_count ln_count,
+	union lane_status *dpcd_lane_status);
+bool dp_is_symbol_locked(enum dc_lane_count ln_count,
+	union lane_status *dpcd_lane_status);
+bool dp_is_interlane_aligned(union lane_align_status_updated align_status);
+
+bool dp_is_max_vs_reached(
+	const struct link_training_settings *lt_settings);
+void dp_hw_to_dpcd_lane_settings(
+	const struct link_training_settings *lt_settings,
+	const struct dc_lane_settings hw_lane_settings[LANE_COUNT_DP_MAX],
+	union dpcd_training_lane dpcd_lane_settings[]);
+void dp_decide_lane_settings(
+	const struct link_training_settings *lt_settings,
+	const union lane_adjust ln_adjust[LANE_COUNT_DP_MAX],
+	struct dc_lane_settings hw_lane_settings[LANE_COUNT_DP_MAX],
+	union dpcd_training_lane dpcd_lane_settings[]);
+
+uint32_t dp_translate_training_aux_read_interval(uint32_t dpcd_aux_read_interval);
+
+enum dpcd_training_patterns
+	dc_dp_training_pattern_to_dpcd_training_pattern(
+	struct dc_link *link,
+	enum dc_dp_training_pattern pattern);
+
+uint8_t dc_dp_initialize_scrambling_data_symbols(
+	struct dc_link *link,
+	enum dc_dp_training_pattern pattern);
+
+enum dc_status dp_set_fec_ready(struct dc_link *link, const struct link_resource *link_res, bool ready);
+void dp_set_fec_enable(struct dc_link *link, bool enable);
+bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable);
+bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable, bool immediate_update);
+void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
+bool dp_update_dsc_config(struct pipe_ctx *pipe_ctx);
+bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable);
+
+/* Initialize output parameter lt_settings. */
+void dp_decide_training_settings(
+	struct dc_link *link,
+	const struct dc_link_settings *link_setting,
+	struct link_training_settings *lt_settings);
+
+/* Convert PHY repeater count read from DPCD uint8_t. */
+uint8_t dp_convert_to_count(uint8_t lttpr_repeater_count);
+
+/* Check DPCD training status registers to detect link loss. */
+enum link_training_result dp_check_link_loss_status(
+		struct dc_link *link,
+		const struct link_training_settings *link_training_setting);
+
+enum dc_status dpcd_configure_lttpr_mode(
+		struct dc_link *link,
+		struct link_training_settings *lt_settings);
+
+enum dp_link_encoding dp_get_link_encoding_format(const struct dc_link_settings *link_settings);
+enum dc_status dp_retrieve_lttpr_cap(struct dc_link *link);
+bool dp_is_lttpr_present(struct dc_link *link);
+enum lttpr_mode dp_decide_lttpr_mode(struct dc_link *link, struct dc_link_settings *link_setting);
+void dp_get_lttpr_mode_override(struct dc_link *link, enum lttpr_mode *override);
+enum lttpr_mode dp_decide_8b_10b_lttpr_mode(struct dc_link *link);
+enum lttpr_mode dp_decide_128b_132b_lttpr_mode(struct dc_link *link);
+bool dpcd_write_128b_132b_sst_payload_allocation_table(
+		const struct dc_stream_state *stream,
+		struct dc_link *link,
+		struct link_mst_stream_allocation_table *proposed_table,
+		bool allocate);
+
+enum dc_status dpcd_configure_channel_coding(
+		struct dc_link *link,
+		struct link_training_settings *lt_settings);
+
+bool dpcd_poll_for_allocation_change_trigger(struct dc_link *link);
+
+struct fixed31_32 calculate_sst_avg_time_slots_per_mtp(
+		const struct dc_stream_state *stream,
+		const struct dc_link *link);
+void enable_dp_hpo_output(struct dc_link *link,
+		const struct link_resource *link_res,
+		const struct dc_link_settings *link_settings);
+void disable_dp_hpo_output(struct dc_link *link,
+		const struct link_resource *link_res,
+		enum signal_type signal);
+
+void setup_dp_hpo_stream(struct pipe_ctx *pipe_ctx, bool enable);
+bool is_dp_128b_132b_signal(struct pipe_ctx *pipe_ctx);
+void edp_panel_backlight_power_on(struct dc_link *link, bool wait_for_hpd);
+void dp_receiver_power_ctrl(struct dc_link *link, bool on);
+void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode);
+void dp_enable_link_phy(
+	struct dc_link *link,
+	const struct link_resource *link_res,
+	enum signal_type signal,
+	enum clock_source_id clock_source,
+	const struct dc_link_settings *link_settings);
+void edp_add_delay_for_T9(struct dc_link *link);
+bool edp_receiver_ready_T9(struct dc_link *link);
+bool edp_receiver_ready_T7(struct dc_link *link);
+
+void dp_disable_link_phy(struct dc_link *link, const struct link_resource *link_res,
+		enum signal_type signal);
+
+void dp_disable_link_phy_mst(struct dc_link *link, const struct link_resource *link_res,
+		enum signal_type signal);
+
+bool dp_set_hw_training_pattern(
+		struct dc_link *link,
+		const struct link_resource *link_res,
+		enum dc_dp_training_pattern pattern,
+		uint32_t offset);
+
+void dp_set_hw_lane_settings(
+		struct dc_link *link,
+		const struct link_resource *link_res,
+		const struct link_training_settings *link_settings,
+		uint32_t offset);
+
+void dp_set_hw_test_pattern(
+		struct dc_link *link,
+		const struct link_resource *link_res,
+		enum dp_test_pattern test_pattern,
+		uint8_t *custom_pattern,
+		uint32_t custom_pattern_size);
+
+void dp_retrain_link_dp_test(struct dc_link *link,
+		struct dc_link_settings *link_setting,
+		bool skip_video_pattern);
+#endif /* __DC_LINK_DP_H__ */