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, 249 insertions, 0 deletions

diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
new file mode 100644
index 000000000..06613ffea
--- /dev/null
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2018-2020 Intel Corporation
+ */
+
+#include <linux/clk.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_print.h>
+#include <drm/drm_vblank.h>
+#include <drm/drm_modeset_helper_vtables.h>
+
+#include "kmb_drv.h"
+#include "kmb_dsi.h"
+#include "kmb_plane.h"
+#include "kmb_regs.h"
+
+struct kmb_crtc_timing {
+	u32 vfront_porch;
+	u32 vback_porch;
+	u32 vsync_len;
+	u32 hfront_porch;
+	u32 hback_porch;
+	u32 hsync_len;
+};
+
+static int kmb_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct kmb_drm_private *kmb = to_kmb(dev);
+
+	/* Clear interrupt */
+	kmb_write_lcd(kmb, LCD_INT_CLEAR, LCD_INT_VERT_COMP);
+	/* Set which interval to generate vertical interrupt */
+	kmb_write_lcd(kmb, LCD_VSTATUS_COMPARE,
+		      LCD_VSTATUS_COMPARE_VSYNC);
+	/* Enable vertical interrupt */
+	kmb_set_bitmask_lcd(kmb, LCD_INT_ENABLE,
+			    LCD_INT_VERT_COMP);
+	return 0;
+}
+
+static void kmb_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct kmb_drm_private *kmb = to_kmb(dev);
+
+	/* Clear interrupt */
+	kmb_write_lcd(kmb, LCD_INT_CLEAR, LCD_INT_VERT_COMP);
+	/* Disable vertical interrupt */
+	kmb_clr_bitmask_lcd(kmb, LCD_INT_ENABLE,
+			    LCD_INT_VERT_COMP);
+}
+
+static const struct drm_crtc_funcs kmb_crtc_funcs = {
+	.destroy = drm_crtc_cleanup,
+	.set_config = drm_atomic_helper_set_config,
+	.page_flip = drm_atomic_helper_page_flip,
+	.reset = drm_atomic_helper_crtc_reset,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+	.enable_vblank = kmb_crtc_enable_vblank,
+	.disable_vblank = kmb_crtc_disable_vblank,
+};
+
+static void kmb_crtc_set_mode(struct drm_crtc *crtc,
+			      struct drm_atomic_state *old_state)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_display_mode *m = &crtc->state->adjusted_mode;
+	struct kmb_crtc_timing vm;
+	struct kmb_drm_private *kmb = to_kmb(dev);
+	unsigned int val = 0;
+
+	/* Initialize mipi */
+	kmb_dsi_mode_set(kmb->kmb_dsi, m, kmb->sys_clk_mhz, old_state);
+	drm_info(dev,
+		 "vfp= %d vbp= %d vsync_len=%d hfp=%d hbp=%d hsync_len=%d\n",
+		 m->crtc_vsync_start - m->crtc_vdisplay,
+		 m->crtc_vtotal - m->crtc_vsync_end,
+		 m->crtc_vsync_end - m->crtc_vsync_start,
+		 m->crtc_hsync_start - m->crtc_hdisplay,
+		 m->crtc_htotal - m->crtc_hsync_end,
+		 m->crtc_hsync_end - m->crtc_hsync_start);
+	val = kmb_read_lcd(kmb, LCD_INT_ENABLE);
+	kmb_clr_bitmask_lcd(kmb, LCD_INT_ENABLE, val);
+	kmb_set_bitmask_lcd(kmb, LCD_INT_CLEAR, ~0x0);
+	vm.vfront_porch = 2;
+	vm.vback_porch = 2;
+	vm.vsync_len = 8;
+	vm.hfront_porch = 0;
+	vm.hback_porch = 0;
+	vm.hsync_len = 28;
+
+	drm_dbg(dev, "%s : %dactive height= %d vbp=%d vfp=%d vsync-w=%d h-active=%d h-bp=%d h-fp=%d hsync-l=%d",
+		__func__, __LINE__,
+			m->crtc_vdisplay, vm.vback_porch, vm.vfront_porch,
+			vm.vsync_len, m->crtc_hdisplay, vm.hback_porch,
+			vm.hfront_porch, vm.hsync_len);
+	kmb_write_lcd(kmb, LCD_V_ACTIVEHEIGHT,
+		      m->crtc_vdisplay - 1);
+	kmb_write_lcd(kmb, LCD_V_BACKPORCH, vm.vback_porch);
+	kmb_write_lcd(kmb, LCD_V_FRONTPORCH, vm.vfront_porch);
+	kmb_write_lcd(kmb, LCD_VSYNC_WIDTH, vm.vsync_len - 1);
+	kmb_write_lcd(kmb, LCD_H_ACTIVEWIDTH,
+		      m->crtc_hdisplay - 1);
+	kmb_write_lcd(kmb, LCD_H_BACKPORCH, vm.hback_porch);
+	kmb_write_lcd(kmb, LCD_H_FRONTPORCH, vm.hfront_porch);
+	kmb_write_lcd(kmb, LCD_HSYNC_WIDTH, vm.hsync_len - 1);
+	/* This is hardcoded as 0 in the Myriadx code */
+	kmb_write_lcd(kmb, LCD_VSYNC_START, 0);
+	kmb_write_lcd(kmb, LCD_VSYNC_END, 0);
+	/* Back ground color */
+	kmb_write_lcd(kmb, LCD_BG_COLOUR_LS, 0x4);
+	if (m->flags == DRM_MODE_FLAG_INTERLACE) {
+		kmb_write_lcd(kmb,
+			      LCD_VSYNC_WIDTH_EVEN, vm.vsync_len - 1);
+		kmb_write_lcd(kmb,
+			      LCD_V_BACKPORCH_EVEN, vm.vback_porch);
+		kmb_write_lcd(kmb,
+			      LCD_V_FRONTPORCH_EVEN, vm.vfront_porch);
+		kmb_write_lcd(kmb, LCD_V_ACTIVEHEIGHT_EVEN,
+			      m->crtc_vdisplay - 1);
+		/* This is hardcoded as 10 in the Myriadx code */
+		kmb_write_lcd(kmb, LCD_VSYNC_START_EVEN, 10);
+		kmb_write_lcd(kmb, LCD_VSYNC_END_EVEN, 10);
+	}
+	kmb_write_lcd(kmb, LCD_TIMING_GEN_TRIG, 1);
+	kmb_set_bitmask_lcd(kmb, LCD_CONTROL, LCD_CTRL_ENABLE);
+	kmb_set_bitmask_lcd(kmb, LCD_INT_ENABLE, val);
+}
+
+static void kmb_crtc_atomic_enable(struct drm_crtc *crtc,
+				   struct drm_atomic_state *state)
+{
+	struct kmb_drm_private *kmb = crtc_to_kmb_priv(crtc);
+
+	clk_prepare_enable(kmb->kmb_clk.clk_lcd);
+	kmb_crtc_set_mode(crtc, state);
+	drm_crtc_vblank_on(crtc);
+}
+
+static void kmb_crtc_atomic_disable(struct drm_crtc *crtc,
+				    struct drm_atomic_state *state)
+{
+	struct kmb_drm_private *kmb = crtc_to_kmb_priv(crtc);
+	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
+
+	/* due to hw limitations, planes need to be off when crtc is off */
+	drm_atomic_helper_disable_planes_on_crtc(old_state, false);
+
+	drm_crtc_vblank_off(crtc);
+	clk_disable_unprepare(kmb->kmb_clk.clk_lcd);
+}
+
+static void kmb_crtc_atomic_begin(struct drm_crtc *crtc,
+				  struct drm_atomic_state *state)
+{
+	struct drm_device *dev = crtc->dev;
+	struct kmb_drm_private *kmb = to_kmb(dev);
+
+	kmb_clr_bitmask_lcd(kmb, LCD_INT_ENABLE,
+			    LCD_INT_VERT_COMP);
+}
+
+static void kmb_crtc_atomic_flush(struct drm_crtc *crtc,
+				  struct drm_atomic_state *state)
+{
+	struct drm_device *dev = crtc->dev;
+	struct kmb_drm_private *kmb = to_kmb(dev);
+
+	kmb_set_bitmask_lcd(kmb, LCD_INT_ENABLE,
+			    LCD_INT_VERT_COMP);
+
+	spin_lock_irq(&crtc->dev->event_lock);
+	if (crtc->state->event) {
+		if (drm_crtc_vblank_get(crtc) == 0)
+			drm_crtc_arm_vblank_event(crtc, crtc->state->event);
+		else
+			drm_crtc_send_vblank_event(crtc, crtc->state->event);
+	}
+	crtc->state->event = NULL;
+	spin_unlock_irq(&crtc->dev->event_lock);
+}
+
+static enum drm_mode_status
+		kmb_crtc_mode_valid(struct drm_crtc *crtc,
+				    const struct drm_display_mode *mode)
+{
+	int refresh;
+	struct drm_device *dev = crtc->dev;
+	int vfp = mode->vsync_start - mode->vdisplay;
+
+	if (mode->vdisplay < KMB_CRTC_MAX_HEIGHT) {
+		drm_dbg(dev, "height = %d less than %d",
+			mode->vdisplay, KMB_CRTC_MAX_HEIGHT);
+		return MODE_BAD_VVALUE;
+	}
+	if (mode->hdisplay < KMB_CRTC_MAX_WIDTH) {
+		drm_dbg(dev, "width = %d less than %d",
+			mode->hdisplay, KMB_CRTC_MAX_WIDTH);
+		return MODE_BAD_HVALUE;
+	}
+	refresh = drm_mode_vrefresh(mode);
+	if (refresh < KMB_MIN_VREFRESH || refresh > KMB_MAX_VREFRESH) {
+		drm_dbg(dev, "refresh = %d less than %d or greater than %d",
+			refresh, KMB_MIN_VREFRESH, KMB_MAX_VREFRESH);
+		return MODE_BAD;
+	}
+
+	if (vfp < KMB_CRTC_MIN_VFP) {
+		drm_dbg(dev, "vfp = %d less than %d", vfp, KMB_CRTC_MIN_VFP);
+		return MODE_BAD;
+	}
+
+	return MODE_OK;
+}
+
+static const struct drm_crtc_helper_funcs kmb_crtc_helper_funcs = {
+	.atomic_begin = kmb_crtc_atomic_begin,
+	.atomic_enable = kmb_crtc_atomic_enable,
+	.atomic_disable = kmb_crtc_atomic_disable,
+	.atomic_flush = kmb_crtc_atomic_flush,
+	.mode_valid = kmb_crtc_mode_valid,
+};
+
+int kmb_setup_crtc(struct drm_device *drm)
+{
+	struct kmb_drm_private *kmb = to_kmb(drm);
+	struct kmb_plane *primary;
+	int ret;
+
+	primary = kmb_plane_init(drm);
+	if (IS_ERR(primary))
+		return PTR_ERR(primary);
+
+	ret = drm_crtc_init_with_planes(drm, &kmb->crtc, &primary->base_plane,
+					NULL, &kmb_crtc_funcs, NULL);
+	if (ret) {
+		kmb_plane_destroy(&primary->base_plane);
+		return ret;
+	}
+
+	drm_crtc_helper_add(&kmb->crtc, &kmb_crtc_helper_funcs);
+	return 0;
+}