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, 290 insertions, 0 deletions

diff --git a/drivers/w1/slaves/w1_ds250x.c b/drivers/w1/slaves/w1_ds250x.c
new file mode 100644
index 000000000..7592c7050
--- /dev/null
+++ b/drivers/w1/slaves/w1_ds250x.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * w1_ds250x.c - w1 family 09/0b/89/91 (DS250x) driver
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/crc16.h>
+
+#include <linux/w1.h>
+#include <linux/nvmem-provider.h>
+
+#define W1_DS2501_UNW_FAMILY    0x91
+#define W1_DS2501_SIZE          64
+
+#define W1_DS2502_FAMILY        0x09
+#define W1_DS2502_UNW_FAMILY    0x89
+#define W1_DS2502_SIZE          128
+
+#define W1_DS2505_FAMILY	0x0b
+#define W1_DS2505_SIZE		2048
+
+#define W1_PAGE_SIZE		32
+
+#define W1_EXT_READ_MEMORY	0xA5
+#define W1_READ_DATA_CRC        0xC3
+
+#define OFF2PG(off)	((off) / W1_PAGE_SIZE)
+
+#define CRC16_INIT		0
+#define CRC16_VALID		0xb001
+
+struct w1_eprom_data {
+	size_t size;
+	int (*read)(struct w1_slave *sl, int pageno);
+	u8 eprom[W1_DS2505_SIZE];
+	DECLARE_BITMAP(page_present, W1_DS2505_SIZE / W1_PAGE_SIZE);
+	char nvmem_name[64];
+};
+
+static int w1_ds2502_read_page(struct w1_slave *sl, int pageno)
+{
+	struct w1_eprom_data *data = sl->family_data;
+	int pgoff = pageno * W1_PAGE_SIZE;
+	int ret = -EIO;
+	u8 buf[3];
+	u8 crc8;
+
+	if (test_bit(pageno, data->page_present))
+		return 0; /* page already present */
+
+	mutex_lock(&sl->master->bus_mutex);
+
+	if (w1_reset_select_slave(sl))
+		goto err;
+
+	buf[0] = W1_READ_DATA_CRC;
+	buf[1] = pgoff & 0xff;
+	buf[2] = pgoff >> 8;
+	w1_write_block(sl->master, buf, 3);
+
+	crc8 = w1_read_8(sl->master);
+	if (w1_calc_crc8(buf, 3) != crc8)
+		goto err;
+
+	w1_read_block(sl->master, &data->eprom[pgoff], W1_PAGE_SIZE);
+
+	crc8 = w1_read_8(sl->master);
+	if (w1_calc_crc8(&data->eprom[pgoff], W1_PAGE_SIZE) != crc8)
+		goto err;
+
+	set_bit(pageno, data->page_present); /* mark page present */
+	ret = 0;
+err:
+	mutex_unlock(&sl->master->bus_mutex);
+	return ret;
+}
+
+static int w1_ds2505_read_page(struct w1_slave *sl, int pageno)
+{
+	struct w1_eprom_data *data = sl->family_data;
+	int redir_retries = 16;
+	int pgoff, epoff;
+	int ret = -EIO;
+	u8 buf[6];
+	u8 redir;
+	u16 crc;
+
+	if (test_bit(pageno, data->page_present))
+		return 0; /* page already present */
+
+	epoff = pgoff = pageno * W1_PAGE_SIZE;
+	mutex_lock(&sl->master->bus_mutex);
+
+retry:
+	if (w1_reset_select_slave(sl))
+		goto err;
+
+	buf[0] = W1_EXT_READ_MEMORY;
+	buf[1] = pgoff & 0xff;
+	buf[2] = pgoff >> 8;
+	w1_write_block(sl->master, buf, 3);
+	w1_read_block(sl->master, buf + 3, 3); /* redir, crc16 */
+	redir = buf[3];
+	crc = crc16(CRC16_INIT, buf, 6);
+
+	if (crc != CRC16_VALID)
+		goto err;
+
+
+	if (redir != 0xff) {
+		redir_retries--;
+		if (redir_retries < 0)
+			goto err;
+
+		pgoff = (redir ^ 0xff) * W1_PAGE_SIZE;
+		goto retry;
+	}
+
+	w1_read_block(sl->master, &data->eprom[epoff], W1_PAGE_SIZE);
+	w1_read_block(sl->master, buf, 2); /* crc16 */
+	crc = crc16(CRC16_INIT, &data->eprom[epoff], W1_PAGE_SIZE);
+	crc = crc16(crc, buf, 2);
+
+	if (crc != CRC16_VALID)
+		goto err;
+
+	set_bit(pageno, data->page_present);
+	ret = 0;
+err:
+	mutex_unlock(&sl->master->bus_mutex);
+	return ret;
+}
+
+static int w1_nvmem_read(void *priv, unsigned int off, void *buf, size_t count)
+{
+	struct w1_slave *sl = priv;
+	struct w1_eprom_data *data = sl->family_data;
+	size_t eprom_size = data->size;
+	int ret;
+	int i;
+
+	if (off > eprom_size)
+		return -EINVAL;
+
+	if ((off + count) > eprom_size)
+		count = eprom_size - off;
+
+	i = OFF2PG(off);
+	do {
+		ret = data->read(sl, i++);
+		if (ret < 0)
+			return ret;
+	} while (i < OFF2PG(off + count));
+
+	memcpy(buf, &data->eprom[off], count);
+	return 0;
+}
+
+static int w1_eprom_add_slave(struct w1_slave *sl)
+{
+	struct w1_eprom_data *data;
+	struct nvmem_device *nvmem;
+	struct nvmem_config nvmem_cfg = {
+		.dev = &sl->dev,
+		.reg_read = w1_nvmem_read,
+		.type = NVMEM_TYPE_OTP,
+		.read_only = true,
+		.word_size = 1,
+		.priv = sl,
+		.id = -1
+	};
+
+	data = devm_kzalloc(&sl->dev, sizeof(struct w1_eprom_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	sl->family_data = data;
+	switch (sl->family->fid) {
+	case W1_DS2501_UNW_FAMILY:
+		data->size = W1_DS2501_SIZE;
+		data->read = w1_ds2502_read_page;
+		break;
+	case W1_DS2502_FAMILY:
+	case W1_DS2502_UNW_FAMILY:
+		data->size = W1_DS2502_SIZE;
+		data->read = w1_ds2502_read_page;
+		break;
+	case W1_DS2505_FAMILY:
+		data->size = W1_DS2505_SIZE;
+		data->read = w1_ds2505_read_page;
+		break;
+	}
+
+	if (sl->master->bus_master->dev_id)
+		snprintf(data->nvmem_name, sizeof(data->nvmem_name),
+			 "%s-%02x-%012llx",
+			 sl->master->bus_master->dev_id, sl->reg_num.family,
+			 (unsigned long long)sl->reg_num.id);
+	else
+		snprintf(data->nvmem_name, sizeof(data->nvmem_name),
+			 "%02x-%012llx",
+			 sl->reg_num.family,
+			 (unsigned long long)sl->reg_num.id);
+
+	nvmem_cfg.name = data->nvmem_name;
+	nvmem_cfg.size = data->size;
+
+	nvmem = devm_nvmem_register(&sl->dev, &nvmem_cfg);
+	return PTR_ERR_OR_ZERO(nvmem);
+}
+
+static const struct w1_family_ops w1_eprom_fops = {
+	.add_slave	= w1_eprom_add_slave,
+};
+
+static struct w1_family w1_family_09 = {
+	.fid = W1_DS2502_FAMILY,
+	.fops = &w1_eprom_fops,
+};
+
+static struct w1_family w1_family_0b = {
+	.fid = W1_DS2505_FAMILY,
+	.fops = &w1_eprom_fops,
+};
+
+static struct w1_family w1_family_89 = {
+	.fid = W1_DS2502_UNW_FAMILY,
+	.fops = &w1_eprom_fops,
+};
+
+static struct w1_family w1_family_91 = {
+	.fid = W1_DS2501_UNW_FAMILY,
+	.fops = &w1_eprom_fops,
+};
+
+static int __init w1_ds250x_init(void)
+{
+	int err;
+
+	err = w1_register_family(&w1_family_09);
+	if (err)
+		return err;
+
+	err = w1_register_family(&w1_family_0b);
+	if (err)
+		goto err_0b;
+
+	err = w1_register_family(&w1_family_89);
+	if (err)
+		goto err_89;
+
+	err = w1_register_family(&w1_family_91);
+	if (err)
+		goto err_91;
+
+	return 0;
+
+err_91:
+	w1_unregister_family(&w1_family_89);
+err_89:
+	w1_unregister_family(&w1_family_0b);
+err_0b:
+	w1_unregister_family(&w1_family_09);
+	return err;
+}
+
+static void __exit w1_ds250x_exit(void)
+{
+	w1_unregister_family(&w1_family_09);
+	w1_unregister_family(&w1_family_0b);
+	w1_unregister_family(&w1_family_89);
+	w1_unregister_family(&w1_family_91);
+}
+
+module_init(w1_ds250x_init);
+module_exit(w1_ds250x_exit);
+
+MODULE_AUTHOR("Thomas Bogendoerfer <tbogendoerfe@suse.de>");
+MODULE_DESCRIPTION("w1 family driver for DS250x Add Only Memory");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("w1-family-" __stringify(W1_DS2502_FAMILY));
+MODULE_ALIAS("w1-family-" __stringify(W1_DS2505_FAMILY));
+MODULE_ALIAS("w1-family-" __stringify(W1_DS2501_UNW_FAMILY));
+MODULE_ALIAS("w1-family-" __stringify(W1_DS2502_UNW_FAMILY));