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, 395 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/am200epd.c b/arch/arm/mach-pxa/am200epd.c
new file mode 100644
index 000000000..cac0bb09d
--- /dev/null
+++ b/arch/arm/mach-pxa/am200epd.c
@@ -0,0 +1,395 @@
+/*
+ * am200epd.c -- Platform device for AM200 EPD kit
+ *
+ * Copyright (C) 2008, Jaya Kumar
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
+ *
+ * This work was made possible by help and equipment support from E-Ink
+ * Corporation. http://support.eink.com/community
+ *
+ * This driver is written to be used with the Metronome display controller.
+ * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
+ * Vizplex EPD on a Gumstix board using the Lyre interface board.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include "pxa25x.h"
+#include "gumstix.h"
+#include <linux/platform_data/video-pxafb.h>
+
+#include "generic.h"
+
+#include <video/metronomefb.h>
+
+static unsigned int panel_type = 6;
+static struct platform_device *am200_device;
+static struct metronome_board am200_board;
+
+static struct pxafb_mode_info am200_fb_mode_9inch7 = {
+	.pixclock	= 40000,
+	.xres		= 1200,
+	.yres		= 842,
+	.bpp		= 16,
+	.hsync_len	= 2,
+	.left_margin	= 2,
+	.right_margin	= 2,
+	.vsync_len	= 1,
+	.upper_margin	= 2,
+	.lower_margin	= 25,
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mode_info am200_fb_mode_8inch = {
+	.pixclock	= 40000,
+	.xres		= 1088,
+	.yres		= 791,
+	.bpp		= 16,
+	.hsync_len	= 28,
+	.left_margin	= 8,
+	.right_margin	= 30,
+	.vsync_len	= 8,
+	.upper_margin	= 10,
+	.lower_margin	= 8,
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mode_info am200_fb_mode_6inch = {
+	.pixclock	= 40189,
+	.xres		= 832,
+	.yres		= 622,
+	.bpp		= 16,
+	.hsync_len	= 28,
+	.left_margin	= 34,
+	.right_margin	= 34,
+	.vsync_len	= 25,
+	.upper_margin	= 0,
+	.lower_margin	= 2,
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info am200_fb_info = {
+	.modes		= &am200_fb_mode_6inch,
+	.num_modes	= 1,
+	.lcd_conn	= LCD_TYPE_COLOR_TFT | LCD_PCLK_EDGE_FALL |
+			  LCD_AC_BIAS_FREQ(24),
+};
+
+/* register offsets for gpio control */
+#define LED_GPIO_PIN 51
+#define STDBY_GPIO_PIN 48
+#define RST_GPIO_PIN 49
+#define RDY_GPIO_PIN 32
+#define ERR_GPIO_PIN 17
+#define PCBPWR_GPIO_PIN 16
+static int gpios[] = { LED_GPIO_PIN , STDBY_GPIO_PIN , RST_GPIO_PIN,
+			RDY_GPIO_PIN, ERR_GPIO_PIN, PCBPWR_GPIO_PIN };
+static char *gpio_names[] = { "LED" , "STDBY" , "RST", "RDY", "ERR", "PCBPWR" };
+
+static int am200_init_gpio_regs(struct metronomefb_par *par)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(gpios); i++) {
+		err = gpio_request(gpios[i], gpio_names[i]);
+		if (err) {
+			dev_err(&am200_device->dev, "failed requesting "
+				"gpio %s, err=%d\n", gpio_names[i], err);
+			goto err_req_gpio;
+		}
+	}
+
+	gpio_direction_output(LED_GPIO_PIN, 0);
+	gpio_direction_output(STDBY_GPIO_PIN, 0);
+	gpio_direction_output(RST_GPIO_PIN, 0);
+
+	gpio_direction_input(RDY_GPIO_PIN);
+	gpio_direction_input(ERR_GPIO_PIN);
+
+	gpio_direction_output(PCBPWR_GPIO_PIN, 0);
+
+	return 0;
+
+err_req_gpio:
+	while (--i >= 0)
+		gpio_free(gpios[i]);
+
+	return err;
+}
+
+static void am200_cleanup(struct metronomefb_par *par)
+{
+	int i;
+
+	free_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), par);
+
+	for (i = 0; i < ARRAY_SIZE(gpios); i++)
+		gpio_free(gpios[i]);
+}
+
+static int am200_share_video_mem(struct fb_info *info)
+{
+	/* rough check if this is our desired fb and not something else */
+	if ((info->var.xres != am200_fb_info.modes->xres)
+		|| (info->var.yres != am200_fb_info.modes->yres))
+		return 0;
+
+	/* we've now been notified that we have our new fb */
+	am200_board.metromem = info->screen_base;
+	am200_board.host_fbinfo = info;
+
+	/* try to refcount host drv since we are the consumer after this */
+	if (!try_module_get(info->fbops->owner))
+		return -ENODEV;
+
+	return 0;
+}
+
+static int am200_unshare_video_mem(struct fb_info *info)
+{
+	dev_dbg(&am200_device->dev, "ENTER %s\n", __func__);
+
+	if (info != am200_board.host_fbinfo)
+		return 0;
+
+	module_put(am200_board.host_fbinfo->fbops->owner);
+	return 0;
+}
+
+static int am200_fb_notifier_callback(struct notifier_block *self,
+				 unsigned long event, void *data)
+{
+	struct fb_event *evdata = data;
+	struct fb_info *info = evdata->info;
+
+	dev_dbg(&am200_device->dev, "ENTER %s\n", __func__);
+
+	if (event == FB_EVENT_FB_REGISTERED)
+		return am200_share_video_mem(info);
+	else if (event == FB_EVENT_FB_UNREGISTERED)
+		return am200_unshare_video_mem(info);
+
+	return 0;
+}
+
+static struct notifier_block am200_fb_notif = {
+	.notifier_call = am200_fb_notifier_callback,
+};
+
+/* this gets called as part of our init. these steps must be done now so
+ * that we can use pxa_set_fb_info */
+static void __init am200_presetup_fb(void)
+{
+	int fw;
+	int fh;
+	int padding_size;
+	int totalsize;
+
+	switch (panel_type) {
+	case 6:
+		am200_fb_info.modes = &am200_fb_mode_6inch;
+		break;
+	case 8:
+		am200_fb_info.modes = &am200_fb_mode_8inch;
+		break;
+	case 97:
+		am200_fb_info.modes = &am200_fb_mode_9inch7;
+		break;
+	default:
+		dev_err(&am200_device->dev, "invalid panel_type selection,"
+						" setting to 6\n");
+		am200_fb_info.modes = &am200_fb_mode_6inch;
+		break;
+	}
+
+	/* the frame buffer is divided as follows:
+	command | CRC | padding
+	16kb waveform data | CRC | padding
+	image data | CRC
+	*/
+
+	fw = am200_fb_info.modes->xres;
+	fh = am200_fb_info.modes->yres;
+
+	/* waveform must be 16k + 2 for checksum */
+	am200_board.wfm_size = roundup(16*1024 + 2, fw);
+
+	padding_size = PAGE_SIZE + (4 * fw);
+
+	/* total is 1 cmd , 1 wfm, padding and image */
+	totalsize = fw + am200_board.wfm_size + padding_size + (fw*fh);
+
+	/* save this off because we're manipulating fw after this and
+	 * we'll need it when we're ready to setup the framebuffer */
+	am200_board.fw = fw;
+	am200_board.fh = fh;
+
+	/* the reason we do this adjustment is because we want to acquire
+	 * more framebuffer memory without imposing custom awareness on the
+	 * underlying pxafb driver */
+	am200_fb_info.modes->yres = DIV_ROUND_UP(totalsize, fw);
+
+	/* we divide since we told the LCD controller we're 16bpp */
+	am200_fb_info.modes->xres /= 2;
+
+	pxa_set_fb_info(NULL, &am200_fb_info);
+
+}
+
+/* this gets called by metronomefb as part of its init, in our case, we
+ * have already completed initial framebuffer init in presetup_fb so we
+ * can just setup the fb access pointers */
+static int am200_setup_fb(struct metronomefb_par *par)
+{
+	int fw;
+	int fh;
+
+	fw = am200_board.fw;
+	fh = am200_board.fh;
+
+	/* metromem was set up by the notifier in share_video_mem so now
+	 * we can use its value to calculate the other entries */
+	par->metromem_cmd = (struct metromem_cmd *) am200_board.metromem;
+	par->metromem_wfm = am200_board.metromem + fw;
+	par->metromem_img = par->metromem_wfm + am200_board.wfm_size;
+	par->metromem_img_csum = (u16 *) (par->metromem_img + (fw * fh));
+	par->metromem_dma = am200_board.host_fbinfo->fix.smem_start;
+
+	return 0;
+}
+
+static int am200_get_panel_type(void)
+{
+	return panel_type;
+}
+
+static irqreturn_t am200_handle_irq(int irq, void *dev_id)
+{
+	struct metronomefb_par *par = dev_id;
+
+	wake_up_interruptible(&par->waitq);
+	return IRQ_HANDLED;
+}
+
+static int am200_setup_irq(struct fb_info *info)
+{
+	int ret;
+
+	ret = request_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), am200_handle_irq,
+				IRQF_TRIGGER_FALLING, "AM200", info->par);
+	if (ret)
+		dev_err(&am200_device->dev, "request_irq failed: %d\n", ret);
+
+	return ret;
+}
+
+static void am200_set_rst(struct metronomefb_par *par, int state)
+{
+	gpio_set_value(RST_GPIO_PIN, state);
+}
+
+static void am200_set_stdby(struct metronomefb_par *par, int state)
+{
+	gpio_set_value(STDBY_GPIO_PIN, state);
+}
+
+static int am200_wait_event(struct metronomefb_par *par)
+{
+	return wait_event_timeout(par->waitq, gpio_get_value(RDY_GPIO_PIN), HZ);
+}
+
+static int am200_wait_event_intr(struct metronomefb_par *par)
+{
+	return wait_event_interruptible_timeout(par->waitq,
+					gpio_get_value(RDY_GPIO_PIN), HZ);
+}
+
+static struct metronome_board am200_board = {
+	.owner			= THIS_MODULE,
+	.setup_irq		= am200_setup_irq,
+	.setup_io		= am200_init_gpio_regs,
+	.setup_fb		= am200_setup_fb,
+	.set_rst		= am200_set_rst,
+	.set_stdby		= am200_set_stdby,
+	.met_wait_event		= am200_wait_event,
+	.met_wait_event_intr	= am200_wait_event_intr,
+	.get_panel_type		= am200_get_panel_type,
+	.cleanup		= am200_cleanup,
+};
+
+static unsigned long am200_pin_config[] __initdata = {
+	GPIO51_GPIO,
+	GPIO49_GPIO,
+	GPIO48_GPIO,
+	GPIO32_GPIO,
+	GPIO17_GPIO,
+	GPIO16_GPIO,
+};
+
+int __init am200_init(void)
+{
+	int ret;
+
+	/*
+	 * Before anything else, we request notification for any fb
+	 * creation events.
+	 *
+	 * FIXME: This is terrible and needs to be nuked. The notifier is used
+	 * to get at the fb base address from the boot splash fb driver, which
+	 * is then passed to metronomefb. Instaed of metronomfb or this board
+	 * support file here figuring this out on their own.
+	 *
+	 * See also the #ifdef in fbmem.c.
+	 */
+	fb_register_client(&am200_fb_notif);
+
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(am200_pin_config));
+
+	/* request our platform independent driver */
+	request_module("metronomefb");
+
+	am200_device = platform_device_alloc("metronomefb", -1);
+	if (!am200_device)
+		return -ENOMEM;
+
+	/* the am200_board that will be seen by metronomefb is a copy */
+	platform_device_add_data(am200_device, &am200_board,
+					sizeof(am200_board));
+
+	/* this _add binds metronomefb to am200. metronomefb refcounts am200 */
+	ret = platform_device_add(am200_device);
+
+	if (ret) {
+		platform_device_put(am200_device);
+		fb_unregister_client(&am200_fb_notif);
+		return ret;
+	}
+
+	am200_presetup_fb();
+
+	return 0;
+}
+
+module_param(panel_type, uint, 0);
+MODULE_PARM_DESC(panel_type, "Select the panel type: 6, 8, 97");
+
+MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");