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, 253 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c b/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c
new file mode 100644
index 000000000..525bc8881
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2012-15 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
+ *
+ */
+
+#include "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_types.h"
+#include "hw_gpio.h"
+#include "hw_ddc.h"
+
+#include "reg_helper.h"
+#include "gpio_regs.h"
+
+
+#undef FN
+#define FN(reg_name, field_name) \
+	ddc->shifts->field_name, ddc->masks->field_name
+
+#define CTX \
+	ddc->base.base.ctx
+#define REG(reg)\
+	(ddc->regs->reg)
+
+struct gpio;
+
+static void dal_hw_ddc_destruct(
+	struct hw_ddc *pin)
+{
+	dal_hw_gpio_destruct(&pin->base);
+}
+
+static void dal_hw_ddc_destroy(
+	struct hw_gpio_pin **ptr)
+{
+	struct hw_ddc *pin = HW_DDC_FROM_BASE(*ptr);
+
+	dal_hw_ddc_destruct(pin);
+
+	kfree(pin);
+
+	*ptr = NULL;
+}
+
+static enum gpio_result set_config(
+	struct hw_gpio_pin *ptr,
+	const struct gpio_config_data *config_data)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(ptr);
+	struct hw_gpio *hw_gpio = NULL;
+	uint32_t regval;
+	uint32_t ddc_data_pd_en = 0;
+	uint32_t ddc_clk_pd_en = 0;
+	uint32_t aux_pad_mode = 0;
+
+	hw_gpio = &ddc->base;
+
+	if (hw_gpio == NULL) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	regval = REG_GET_3(gpio.MASK_reg,
+			DC_GPIO_DDC1DATA_PD_EN, &ddc_data_pd_en,
+			DC_GPIO_DDC1CLK_PD_EN, &ddc_clk_pd_en,
+			AUX_PAD1_MODE, &aux_pad_mode);
+
+	switch (config_data->config.ddc.type) {
+	case GPIO_DDC_CONFIG_TYPE_MODE_I2C:
+		/* On plug-in, there is a transient level on the pad
+		 * which must be discharged through the internal pull-down.
+		 * Enable internal pull-down, 2.5msec discharge time
+		 * is required for detection of AUX mode */
+		if (hw_gpio->base.en != GPIO_DDC_LINE_VIP_PAD) {
+			if (!ddc_data_pd_en || !ddc_clk_pd_en) {
+				if (hw_gpio->base.en == GPIO_DDC_LINE_DDC_VGA) {
+					// bit 4 of mask has different usage in some cases
+					REG_SET(gpio.MASK_reg, regval, DC_GPIO_DDC1DATA_PD_EN, 1);
+				} else {
+					REG_SET_2(gpio.MASK_reg, regval,
+						DC_GPIO_DDC1DATA_PD_EN, 1,
+						DC_GPIO_DDC1CLK_PD_EN, 1);
+				}
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+		} else {
+			uint32_t sda_pd_dis = 0;
+			uint32_t scl_pd_dis = 0;
+
+			REG_GET_2(gpio.MASK_reg,
+				  DC_GPIO_SDA_PD_DIS, &sda_pd_dis,
+				  DC_GPIO_SCL_PD_DIS, &scl_pd_dis);
+
+			if (sda_pd_dis) {
+				REG_SET(gpio.MASK_reg, regval,
+						DC_GPIO_SDA_PD_DIS, 0);
+
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+
+			if (!scl_pd_dis) {
+				REG_SET(gpio.MASK_reg, regval,
+						DC_GPIO_SCL_PD_DIS, 1);
+
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+		}
+
+		if (aux_pad_mode) {
+			/* let pins to get de-asserted
+			 * before setting pad to I2C mode */
+			if (config_data->config.ddc.data_en_bit_present ||
+				config_data->config.ddc.clock_en_bit_present)
+				/* [anaumov] in DAL2, there was
+				 * dc_service_delay_in_microseconds(2000); */
+				msleep(2);
+
+			/* set the I2C pad mode */
+			/* read the register again,
+			 * some bits may have been changed */
+			REG_UPDATE(gpio.MASK_reg,
+					AUX_PAD1_MODE, 0);
+		}
+
+		if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) {
+				REG_UPDATE(dc_gpio_aux_ctrl_5, DDC_PAD_I2CMODE, 1);
+		}
+		//set  DC_IO_aux_rxsel = 2'b01
+		if (ddc->regs->phy_aux_cntl != 0) {
+				REG_UPDATE(phy_aux_cntl, AUX_PAD_RXSEL, 1);
+		}
+		return GPIO_RESULT_OK;
+	case GPIO_DDC_CONFIG_TYPE_MODE_AUX:
+		/* set the AUX pad mode */
+		if (!aux_pad_mode) {
+			REG_SET(gpio.MASK_reg, regval,
+					AUX_PAD1_MODE, 1);
+		}
+		if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) {
+			REG_UPDATE(dc_gpio_aux_ctrl_5,
+					DDC_PAD_I2CMODE, 0);
+		}
+
+		return GPIO_RESULT_OK;
+	case GPIO_DDC_CONFIG_TYPE_POLL_FOR_CONNECT:
+		if ((hw_gpio->base.en >= GPIO_DDC_LINE_DDC1) &&
+			(hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA)) {
+			REG_UPDATE_3(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_MODE, 0);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	case GPIO_DDC_CONFIG_TYPE_POLL_FOR_DISCONNECT:
+		if ((hw_gpio->base.en >= GPIO_DDC_LINE_DDC1) &&
+			(hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA)) {
+			REG_UPDATE_3(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_MODE, 1);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	case GPIO_DDC_CONFIG_TYPE_DISABLE_POLLING:
+		if ((hw_gpio->base.en >= GPIO_DDC_LINE_DDC1) &&
+			(hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA)) {
+			REG_UPDATE_2(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 0,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 0);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	}
+
+	BREAK_TO_DEBUGGER();
+
+	return GPIO_RESULT_NON_SPECIFIC_ERROR;
+}
+
+static const struct hw_gpio_pin_funcs funcs = {
+	.destroy = dal_hw_ddc_destroy,
+	.open = dal_hw_gpio_open,
+	.get_value = dal_hw_gpio_get_value,
+	.set_value = dal_hw_gpio_set_value,
+	.set_config = set_config,
+	.change_mode = dal_hw_gpio_change_mode,
+	.close = dal_hw_gpio_close,
+};
+
+static void dal_hw_ddc_construct(
+	struct hw_ddc *ddc,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx)
+{
+	dal_hw_gpio_construct(&ddc->base, id, en, ctx);
+	ddc->base.base.funcs = &funcs;
+}
+
+void dal_hw_ddc_init(
+	struct hw_ddc **hw_ddc,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if ((en < GPIO_DDC_LINE_MIN) || (en > GPIO_DDC_LINE_MAX)) {
+		ASSERT_CRITICAL(false);
+		*hw_ddc = NULL;
+	}
+
+	*hw_ddc = kzalloc(sizeof(struct hw_ddc), GFP_KERNEL);
+	if (!*hw_ddc) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_hw_ddc_construct(*hw_ddc, id, en, ctx);
+}
+
+struct hw_gpio_pin *dal_hw_ddc_get_pin(struct gpio *gpio)
+{
+	struct hw_ddc *hw_ddc = dal_gpio_get_ddc(gpio);
+
+	return &hw_ddc->base.base;
+}