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, 304 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/zl10039.c b/drivers/media/dvb-frontends/zl10039.c
new file mode 100644
index 000000000..1335bf78d
--- /dev/null
+++ b/drivers/media/dvb-frontends/zl10039.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Driver for Zarlink ZL10039 DVB-S tuner
+ *
+ *  Copyright 2007 Jan D. Louw <jd.louw@mweb.co.za>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/dvb/frontend.h>
+
+#include <media/dvb_frontend.h>
+#include "zl10039.h"
+
+static int debug;
+
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
+#define dprintk(args...) \
+	do { \
+		if (debug) \
+			printk(KERN_DEBUG args); \
+	} while (0)
+
+enum zl10039_model_id {
+	ID_ZL10039 = 1
+};
+
+struct zl10039_state {
+	struct i2c_adapter *i2c;
+	u8 i2c_addr;
+	u8 id;
+};
+
+enum zl10039_reg_addr {
+	PLL0 = 0,
+	PLL1,
+	PLL2,
+	PLL3,
+	RFFE,
+	BASE0,
+	BASE1,
+	BASE2,
+	LO0,
+	LO1,
+	LO2,
+	LO3,
+	LO4,
+	LO5,
+	LO6,
+	GENERAL
+};
+
+static int zl10039_read(const struct zl10039_state *state,
+			const enum zl10039_reg_addr reg, u8 *buf,
+			const size_t count)
+{
+	u8 regbuf[] = { reg };
+	struct i2c_msg msg[] = {
+		{/* Write register address */
+			.addr = state->i2c_addr,
+			.flags = 0,
+			.buf = regbuf,
+			.len = 1,
+		}, {/* Read count bytes */
+			.addr = state->i2c_addr,
+			.flags = I2C_M_RD,
+			.buf = buf,
+			.len = count,
+		},
+	};
+
+	dprintk("%s\n", __func__);
+
+	if (i2c_transfer(state->i2c, msg, 2) != 2) {
+		dprintk("%s: i2c read error\n", __func__);
+		return -EREMOTEIO;
+	}
+
+	return 0; /* Success */
+}
+
+static int zl10039_write(struct zl10039_state *state,
+			const enum zl10039_reg_addr reg, const u8 *src,
+			const size_t count)
+{
+	u8 buf[MAX_XFER_SIZE];
+	struct i2c_msg msg = {
+		.addr = state->i2c_addr,
+		.flags = 0,
+		.buf = buf,
+		.len = count + 1,
+	};
+
+	if (1 + count > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%zu is too big!\n",
+		       KBUILD_MODNAME, reg, count);
+		return -EINVAL;
+	}
+
+	dprintk("%s\n", __func__);
+	/* Write register address and data in one go */
+	buf[0] = reg;
+	memcpy(&buf[1], src, count);
+	if (i2c_transfer(state->i2c, &msg, 1) != 1) {
+		dprintk("%s: i2c write error\n", __func__);
+		return -EREMOTEIO;
+	}
+
+	return 0; /* Success */
+}
+
+static inline int zl10039_readreg(struct zl10039_state *state,
+				const enum zl10039_reg_addr reg, u8 *val)
+{
+	return zl10039_read(state, reg, val, 1);
+}
+
+static inline int zl10039_writereg(struct zl10039_state *state,
+				const enum zl10039_reg_addr reg,
+				const u8 val)
+{
+	const u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
+
+	return zl10039_write(state, reg, &tmp, 1);
+}
+
+static int zl10039_init(struct dvb_frontend *fe)
+{
+	struct zl10039_state *state = fe->tuner_priv;
+	int ret;
+
+	dprintk("%s\n", __func__);
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 1);
+	/* Reset logic */
+	ret = zl10039_writereg(state, GENERAL, 0x40);
+	if (ret < 0) {
+		dprintk("Note: i2c write error normal when resetting the tuner\n");
+	}
+	/* Wake up */
+	ret = zl10039_writereg(state, GENERAL, 0x01);
+	if (ret < 0) {
+		dprintk("Tuner power up failed\n");
+		return ret;
+	}
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+
+	return 0;
+}
+
+static int zl10039_sleep(struct dvb_frontend *fe)
+{
+	struct zl10039_state *state = fe->tuner_priv;
+	int ret;
+
+	dprintk("%s\n", __func__);
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 1);
+	ret = zl10039_writereg(state, GENERAL, 0x80);
+	if (ret < 0) {
+		dprintk("Tuner sleep failed\n");
+		return ret;
+	}
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+
+	return 0;
+}
+
+static int zl10039_set_params(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct zl10039_state *state = fe->tuner_priv;
+	u8 buf[6];
+	u8 bf;
+	u32 fbw;
+	u32 div;
+	int ret;
+
+	dprintk("%s\n", __func__);
+	dprintk("Set frequency = %d, symbol rate = %d\n",
+			c->frequency, c->symbol_rate);
+
+	/* Assumed 10.111 MHz crystal oscillator */
+	/* Cancelled num/den 80 to prevent overflow */
+	div = (c->frequency * 1000) / 126387;
+	fbw = (c->symbol_rate * 27) / 32000;
+	/* Cancelled num/den 10 to prevent overflow */
+	bf = ((fbw * 5088) / 1011100) - 1;
+
+	/*PLL divider*/
+	buf[0] = (div >> 8) & 0x7f;
+	buf[1] = (div >> 0) & 0xff;
+	/*Reference divider*/
+	/* Select reference ratio of 80 */
+	buf[2] = 0x1D;
+	/*PLL test modes*/
+	buf[3] = 0x40;
+	/*RF Control register*/
+	buf[4] = 0x6E; /* Bypass enable */
+	/*Baseband filter cutoff */
+	buf[5] = bf;
+
+	/* Open i2c gate */
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 1);
+	/* BR = 10, Enable filter adjustment */
+	ret = zl10039_writereg(state, BASE1, 0x0A);
+	if (ret < 0)
+		goto error;
+	/* Write new config values */
+	ret = zl10039_write(state, PLL0, buf, sizeof(buf));
+	if (ret < 0)
+		goto error;
+	/* BR = 10, Disable filter adjustment */
+	ret = zl10039_writereg(state, BASE1, 0x6A);
+	if (ret < 0)
+		goto error;
+
+	/* Close i2c gate */
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+	return 0;
+error:
+	dprintk("Error setting tuner\n");
+	return ret;
+}
+
+static void zl10039_release(struct dvb_frontend *fe)
+{
+	struct zl10039_state *state = fe->tuner_priv;
+
+	dprintk("%s\n", __func__);
+	kfree(state);
+	fe->tuner_priv = NULL;
+}
+
+static const struct dvb_tuner_ops zl10039_ops = {
+	.release = zl10039_release,
+	.init = zl10039_init,
+	.sleep = zl10039_sleep,
+	.set_params = zl10039_set_params,
+};
+
+struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
+		u8 i2c_addr, struct i2c_adapter *i2c)
+{
+	struct zl10039_state *state = NULL;
+
+	dprintk("%s\n", __func__);
+	state = kmalloc(sizeof(struct zl10039_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	state->i2c = i2c;
+	state->i2c_addr = i2c_addr;
+
+	/* Open i2c gate */
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 1);
+	/* check if this is a valid tuner */
+	if (zl10039_readreg(state, GENERAL, &state->id) < 0) {
+		/* Close i2c gate */
+		if (fe->ops.i2c_gate_ctrl)
+			fe->ops.i2c_gate_ctrl(fe, 0);
+		goto error;
+	}
+	/* Close i2c gate */
+	if (fe->ops.i2c_gate_ctrl)
+		fe->ops.i2c_gate_ctrl(fe, 0);
+
+	state->id = state->id & 0x0f;
+	switch (state->id) {
+	case ID_ZL10039:
+		strscpy(fe->ops.tuner_ops.info.name,
+			"Zarlink ZL10039 DVB-S tuner",
+			sizeof(fe->ops.tuner_ops.info.name));
+		break;
+	default:
+		dprintk("Chip ID=%x does not match a known type\n", state->id);
+		goto error;
+	}
+
+	memcpy(&fe->ops.tuner_ops, &zl10039_ops, sizeof(struct dvb_tuner_ops));
+	fe->tuner_priv = state;
+	dprintk("Tuner attached @ i2c address 0x%02x\n", i2c_addr);
+	return fe;
+error:
+	kfree(state);
+	return NULL;
+}
+EXPORT_SYMBOL(zl10039_attach);
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+MODULE_DESCRIPTION("Zarlink ZL10039 DVB-S tuner driver");
+MODULE_AUTHOR("Jan D. Louw <jd.louw@mweb.co.za>");
+MODULE_LICENSE("GPL");