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, 368 insertions, 0 deletions

diff --git a/drivers/gpu/drm/sti/sti_crtc.c b/drivers/gpu/drm/sti/sti_crtc.c
new file mode 100644
index 000000000..3c7154f2d
--- /dev/null
+++ b/drivers/gpu/drm/sti/sti_crtc.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) STMicroelectronics SA 2014
+ * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
+ *          Fabien Dessenne <fabien.dessenne@st.com>
+ *          for STMicroelectronics.
+ */
+
+#include <linux/clk.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_device.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "sti_compositor.h"
+#include "sti_crtc.h"
+#include "sti_drv.h"
+#include "sti_vid.h"
+#include "sti_vtg.h"
+
+static void sti_crtc_atomic_enable(struct drm_crtc *crtc,
+				   struct drm_atomic_state *state)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+
+	DRM_DEBUG_DRIVER("\n");
+
+	mixer->status = STI_MIXER_READY;
+
+	drm_crtc_vblank_on(crtc);
+}
+
+static void sti_crtc_atomic_disable(struct drm_crtc *crtc,
+				    struct drm_atomic_state *state)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+
+	DRM_DEBUG_DRIVER("\n");
+
+	mixer->status = STI_MIXER_DISABLING;
+
+	drm_crtc_wait_one_vblank(crtc);
+}
+
+static int
+sti_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+	struct device *dev = mixer->dev;
+	struct sti_compositor *compo = dev_get_drvdata(dev);
+	struct clk *compo_clk, *pix_clk;
+	int rate = mode->clock * 1000;
+
+	DRM_DEBUG_KMS("CRTC:%d (%s) mode: (%s)\n",
+		      crtc->base.id, sti_mixer_to_str(mixer), mode->name);
+
+	DRM_DEBUG_KMS(DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
+
+	if (mixer->id == STI_MIXER_MAIN) {
+		compo_clk = compo->clk_compo_main;
+		pix_clk = compo->clk_pix_main;
+	} else {
+		compo_clk = compo->clk_compo_aux;
+		pix_clk = compo->clk_pix_aux;
+	}
+
+	/* Prepare and enable the compo IP clock */
+	if (clk_prepare_enable(compo_clk)) {
+		DRM_INFO("Failed to prepare/enable compositor clk\n");
+		goto compo_error;
+	}
+
+	/* Set rate and prepare/enable pixel clock */
+	if (clk_set_rate(pix_clk, rate) < 0) {
+		DRM_ERROR("Cannot set rate (%dHz) for pix clk\n", rate);
+		goto pix_error;
+	}
+	if (clk_prepare_enable(pix_clk)) {
+		DRM_ERROR("Failed to prepare/enable pix clk\n");
+		goto pix_error;
+	}
+
+	sti_vtg_set_config(compo->vtg[mixer->id], &crtc->mode);
+
+	if (sti_mixer_active_video_area(mixer, &crtc->mode)) {
+		DRM_ERROR("Can't set active video area\n");
+		goto mixer_error;
+	}
+
+	return 0;
+
+mixer_error:
+	clk_disable_unprepare(pix_clk);
+pix_error:
+	clk_disable_unprepare(compo_clk);
+compo_error:
+	return -EINVAL;
+}
+
+static void sti_crtc_disable(struct drm_crtc *crtc)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+	struct device *dev = mixer->dev;
+	struct sti_compositor *compo = dev_get_drvdata(dev);
+
+	DRM_DEBUG_KMS("CRTC:%d (%s)\n", crtc->base.id, sti_mixer_to_str(mixer));
+
+	/* Disable Background */
+	sti_mixer_set_background_status(mixer, false);
+
+	drm_crtc_vblank_off(crtc);
+
+	/* Disable pixel clock and compo IP clocks */
+	if (mixer->id == STI_MIXER_MAIN) {
+		clk_disable_unprepare(compo->clk_pix_main);
+		clk_disable_unprepare(compo->clk_compo_main);
+	} else {
+		clk_disable_unprepare(compo->clk_pix_aux);
+		clk_disable_unprepare(compo->clk_compo_aux);
+	}
+
+	mixer->status = STI_MIXER_DISABLED;
+}
+
+static void
+sti_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+	sti_crtc_mode_set(crtc, &crtc->state->adjusted_mode);
+}
+
+static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
+				  struct drm_atomic_state *state)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+	struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
+	struct drm_plane *p;
+	struct drm_pending_vblank_event *event;
+	unsigned long flags;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	/* perform plane actions */
+	list_for_each_entry(p, &drm_dev->mode_config.plane_list, head) {
+		struct sti_plane *plane = to_sti_plane(p);
+
+		switch (plane->status) {
+		case STI_PLANE_UPDATED:
+			/* ignore update for other CRTC */
+			if (p->state->crtc != crtc)
+				continue;
+
+			/* update planes tag as updated */
+			DRM_DEBUG_DRIVER("update plane %s\n",
+					 sti_plane_to_str(plane));
+
+			if (sti_mixer_set_plane_depth(mixer, plane)) {
+				DRM_ERROR("Cannot set plane %s depth\n",
+					  sti_plane_to_str(plane));
+				break;
+			}
+
+			if (sti_mixer_set_plane_status(mixer, plane, true)) {
+				DRM_ERROR("Cannot enable plane %s at mixer\n",
+					  sti_plane_to_str(plane));
+				break;
+			}
+
+			/* if plane is HQVDP_0 then commit the vid[0] */
+			if (plane->desc == STI_HQVDP_0)
+				sti_vid_commit(compo->vid[0], p->state);
+
+			plane->status = STI_PLANE_READY;
+
+			break;
+		case STI_PLANE_DISABLING:
+			/* disabling sequence for planes tag as disabling */
+			DRM_DEBUG_DRIVER("disable plane %s from mixer\n",
+					 sti_plane_to_str(plane));
+
+			if (sti_mixer_set_plane_status(mixer, plane, false)) {
+				DRM_ERROR("Cannot disable plane %s at mixer\n",
+					  sti_plane_to_str(plane));
+				continue;
+			}
+
+			if (plane->desc == STI_CURSOR)
+				/* tag plane status for disabled */
+				plane->status = STI_PLANE_DISABLED;
+			else
+				/* tag plane status for flushing */
+				plane->status = STI_PLANE_FLUSHING;
+
+			/* if plane is HQVDP_0 then disable the vid[0] */
+			if (plane->desc == STI_HQVDP_0)
+				sti_vid_disable(compo->vid[0]);
+
+			break;
+		default:
+			/* Other status case are not handled */
+			break;
+		}
+	}
+
+	event = crtc->state->event;
+	if (event) {
+		crtc->state->event = NULL;
+
+		spin_lock_irqsave(&crtc->dev->event_lock, flags);
+		if (drm_crtc_vblank_get(crtc) == 0)
+			drm_crtc_arm_vblank_event(crtc, event);
+		else
+			drm_crtc_send_vblank_event(crtc, event);
+		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+	}
+}
+
+static const struct drm_crtc_helper_funcs sti_crtc_helper_funcs = {
+	.mode_set_nofb = sti_crtc_mode_set_nofb,
+	.atomic_flush = sti_crtc_atomic_flush,
+	.atomic_enable = sti_crtc_atomic_enable,
+	.atomic_disable = sti_crtc_atomic_disable,
+};
+
+static void sti_crtc_destroy(struct drm_crtc *crtc)
+{
+	DRM_DEBUG_KMS("\n");
+	drm_crtc_cleanup(crtc);
+}
+
+static int sti_crtc_set_property(struct drm_crtc *crtc,
+				 struct drm_property *property,
+				 uint64_t val)
+{
+	DRM_DEBUG_KMS("\n");
+	return 0;
+}
+
+int sti_crtc_vblank_cb(struct notifier_block *nb,
+		       unsigned long event, void *data)
+{
+	struct sti_compositor *compo;
+	struct drm_crtc *crtc = data;
+	struct sti_mixer *mixer;
+	unsigned int pipe;
+
+	pipe = drm_crtc_index(crtc);
+	compo = container_of(nb, struct sti_compositor, vtg_vblank_nb[pipe]);
+	mixer = compo->mixer[pipe];
+
+	if ((event != VTG_TOP_FIELD_EVENT) &&
+	    (event != VTG_BOTTOM_FIELD_EVENT)) {
+		DRM_ERROR("unknown event: %lu\n", event);
+		return -EINVAL;
+	}
+
+	drm_crtc_handle_vblank(crtc);
+
+	if (mixer->status == STI_MIXER_DISABLING) {
+		struct drm_plane *p;
+
+		/* Disable mixer only if all overlay planes (GDP and VDP)
+		 * are disabled */
+		list_for_each_entry(p, &crtc->dev->mode_config.plane_list,
+				    head) {
+			struct sti_plane *plane = to_sti_plane(p);
+
+			if ((plane->desc & STI_PLANE_TYPE_MASK) <= STI_VDP)
+				if (plane->status != STI_PLANE_DISABLED)
+					return 0;
+		}
+		sti_crtc_disable(crtc);
+	}
+
+	return 0;
+}
+
+static int sti_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	unsigned int pipe = crtc->index;
+	struct sti_private *dev_priv = dev->dev_private;
+	struct sti_compositor *compo = dev_priv->compo;
+	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
+	struct sti_vtg *vtg = compo->vtg[pipe];
+
+	DRM_DEBUG_DRIVER("\n");
+
+	if (sti_vtg_register_client(vtg, vtg_vblank_nb, crtc)) {
+		DRM_ERROR("Cannot register VTG notifier\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void sti_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	unsigned int pipe = crtc->index;
+	struct sti_private *priv = drm_dev->dev_private;
+	struct sti_compositor *compo = priv->compo;
+	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
+	struct sti_vtg *vtg = compo->vtg[pipe];
+
+	DRM_DEBUG_DRIVER("\n");
+
+	if (sti_vtg_unregister_client(vtg, vtg_vblank_nb))
+		DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
+}
+
+static int sti_crtc_late_register(struct drm_crtc *crtc)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+	struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
+
+	if (drm_crtc_index(crtc) == 0)
+		sti_compositor_debugfs_init(compo, crtc->dev->primary);
+
+	return 0;
+}
+
+static const struct drm_crtc_funcs sti_crtc_funcs = {
+	.set_config = drm_atomic_helper_set_config,
+	.page_flip = drm_atomic_helper_page_flip,
+	.destroy = sti_crtc_destroy,
+	.set_property = sti_crtc_set_property,
+	.reset = drm_atomic_helper_crtc_reset,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+	.late_register = sti_crtc_late_register,
+	.enable_vblank = sti_crtc_enable_vblank,
+	.disable_vblank = sti_crtc_disable_vblank,
+};
+
+bool sti_crtc_is_main(struct drm_crtc *crtc)
+{
+	struct sti_mixer *mixer = to_sti_mixer(crtc);
+
+	if (mixer->id == STI_MIXER_MAIN)
+		return true;
+
+	return false;
+}
+
+int sti_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
+		  struct drm_plane *primary, struct drm_plane *cursor)
+{
+	struct drm_crtc *crtc = &mixer->drm_crtc;
+	int res;
+
+	res = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
+					&sti_crtc_funcs, NULL);
+	if (res) {
+		DRM_ERROR("Can't initialize CRTC\n");
+		return -EINVAL;
+	}
+
+	drm_crtc_helper_add(crtc, &sti_crtc_helper_funcs);
+
+	DRM_DEBUG_DRIVER("drm CRTC:%d mapped to %s\n",
+			 crtc->base.id, sti_mixer_to_str(mixer));
+
+	return 0;
+}