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, 330 insertions, 0 deletions

diff --git a/drivers/soc/fsl/dpaa2-console.c b/drivers/soc/fsl/dpaa2-console.c
new file mode 100644
index 000000000..53917410f
--- /dev/null
+++ b/drivers/soc/fsl/dpaa2-console.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Freescale DPAA2 Platforms Console Driver
+ *
+ * Copyright 2015-2016 Freescale Semiconductor Inc.
+ * Copyright 2018 NXP
+ */
+
+#define pr_fmt(fmt) "dpaa2-console: " fmt
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/io.h>
+
+/* MC firmware base low/high registers indexes */
+#define MCFBALR_OFFSET 0
+#define MCFBAHR_OFFSET 1
+
+/* Bit masks used to get the most/least significant part of the MC base addr */
+#define MC_FW_ADDR_MASK_HIGH 0x1FFFF
+#define MC_FW_ADDR_MASK_LOW  0xE0000000
+
+#define MC_BUFFER_OFFSET 0x01000000
+#define MC_BUFFER_SIZE   (1024 * 1024 * 16)
+#define MC_OFFSET_DELTA  MC_BUFFER_OFFSET
+
+#define AIOP_BUFFER_OFFSET 0x06000000
+#define AIOP_BUFFER_SIZE   (1024 * 1024 * 16)
+#define AIOP_OFFSET_DELTA  0
+
+#define LOG_HEADER_FLAG_BUFFER_WRAPAROUND 0x80000000
+#define LAST_BYTE(a) ((a) & ~(LOG_HEADER_FLAG_BUFFER_WRAPAROUND))
+
+/* MC and AIOP Magic words */
+#define MAGIC_MC   0x4d430100
+#define MAGIC_AIOP 0x41494F50
+
+struct log_header {
+	__le32 magic_word;
+	char reserved[4];
+	__le32 buf_start;
+	__le32 buf_length;
+	__le32 last_byte;
+};
+
+struct console_data {
+	void __iomem *map_addr;
+	struct log_header __iomem *hdr;
+	void __iomem *start_addr;
+	void __iomem *end_addr;
+	void __iomem *end_of_data;
+	void __iomem *cur_ptr;
+};
+
+static struct resource mc_base_addr;
+
+static inline void adjust_end(struct console_data *cd)
+{
+	u32 last_byte = readl(&cd->hdr->last_byte);
+
+	cd->end_of_data = cd->start_addr + LAST_BYTE(last_byte);
+}
+
+static u64 get_mc_fw_base_address(void)
+{
+	u64 mcfwbase = 0ULL;
+	u32 __iomem *mcfbaregs;
+
+	mcfbaregs = ioremap(mc_base_addr.start, resource_size(&mc_base_addr));
+	if (!mcfbaregs) {
+		pr_err("could not map MC Firmware Base registers\n");
+		return 0;
+	}
+
+	mcfwbase  = readl(mcfbaregs + MCFBAHR_OFFSET) &
+			  MC_FW_ADDR_MASK_HIGH;
+	mcfwbase <<= 32;
+	mcfwbase |= readl(mcfbaregs + MCFBALR_OFFSET) & MC_FW_ADDR_MASK_LOW;
+	iounmap(mcfbaregs);
+
+	pr_debug("MC base address at 0x%016llx\n", mcfwbase);
+	return mcfwbase;
+}
+
+static ssize_t dpaa2_console_size(struct console_data *cd)
+{
+	ssize_t size;
+
+	if (cd->cur_ptr <= cd->end_of_data)
+		size = cd->end_of_data - cd->cur_ptr;
+	else
+		size = (cd->end_addr - cd->cur_ptr) +
+			(cd->end_of_data - cd->start_addr);
+
+	return size;
+}
+
+static int dpaa2_generic_console_open(struct inode *node, struct file *fp,
+				      u64 offset, u64 size,
+				      u32 expected_magic,
+				      u32 offset_delta)
+{
+	u32 read_magic, wrapped, last_byte, buf_start, buf_length;
+	struct console_data *cd;
+	u64 base_addr;
+	int err;
+
+	cd = kmalloc(sizeof(*cd), GFP_KERNEL);
+	if (!cd)
+		return -ENOMEM;
+
+	base_addr = get_mc_fw_base_address();
+	if (!base_addr) {
+		err = -EIO;
+		goto err_fwba;
+	}
+
+	cd->map_addr = ioremap(base_addr + offset, size);
+	if (!cd->map_addr) {
+		pr_err("cannot map console log memory\n");
+		err = -EIO;
+		goto err_ioremap;
+	}
+
+	cd->hdr = (struct log_header __iomem *)cd->map_addr;
+	read_magic = readl(&cd->hdr->magic_word);
+	last_byte =  readl(&cd->hdr->last_byte);
+	buf_start =  readl(&cd->hdr->buf_start);
+	buf_length = readl(&cd->hdr->buf_length);
+
+	if (read_magic != expected_magic) {
+		pr_warn("expected = %08x, read = %08x\n",
+			expected_magic, read_magic);
+		err = -EIO;
+		goto err_magic;
+	}
+
+	cd->start_addr = cd->map_addr + buf_start - offset_delta;
+	cd->end_addr = cd->start_addr + buf_length;
+
+	wrapped = last_byte & LOG_HEADER_FLAG_BUFFER_WRAPAROUND;
+
+	adjust_end(cd);
+	if (wrapped && cd->end_of_data != cd->end_addr)
+		cd->cur_ptr = cd->end_of_data + 1;
+	else
+		cd->cur_ptr = cd->start_addr;
+
+	fp->private_data = cd;
+
+	return 0;
+
+err_magic:
+	iounmap(cd->map_addr);
+
+err_ioremap:
+err_fwba:
+	kfree(cd);
+
+	return err;
+}
+
+static int dpaa2_mc_console_open(struct inode *node, struct file *fp)
+{
+	return dpaa2_generic_console_open(node, fp,
+					  MC_BUFFER_OFFSET, MC_BUFFER_SIZE,
+					  MAGIC_MC, MC_OFFSET_DELTA);
+}
+
+static int dpaa2_aiop_console_open(struct inode *node, struct file *fp)
+{
+	return dpaa2_generic_console_open(node, fp,
+					  AIOP_BUFFER_OFFSET, AIOP_BUFFER_SIZE,
+					  MAGIC_AIOP, AIOP_OFFSET_DELTA);
+}
+
+static int dpaa2_console_close(struct inode *node, struct file *fp)
+{
+	struct console_data *cd = fp->private_data;
+
+	iounmap(cd->map_addr);
+	kfree(cd);
+	return 0;
+}
+
+static ssize_t dpaa2_console_read(struct file *fp, char __user *buf,
+				  size_t count, loff_t *f_pos)
+{
+	struct console_data *cd = fp->private_data;
+	size_t bytes = dpaa2_console_size(cd);
+	size_t bytes_end = cd->end_addr - cd->cur_ptr;
+	size_t written = 0;
+	void *kbuf;
+	int err;
+
+	/* Check if we need to adjust the end of data addr */
+	adjust_end(cd);
+
+	if (cd->end_of_data == cd->cur_ptr)
+		return 0;
+
+	if (count < bytes)
+		bytes = count;
+
+	kbuf = kmalloc(bytes, GFP_KERNEL);
+	if (!kbuf)
+		return -ENOMEM;
+
+	if (bytes > bytes_end) {
+		memcpy_fromio(kbuf, cd->cur_ptr, bytes_end);
+		if (copy_to_user(buf, kbuf, bytes_end)) {
+			err = -EFAULT;
+			goto err_free_buf;
+		}
+		buf += bytes_end;
+		cd->cur_ptr = cd->start_addr;
+		bytes -= bytes_end;
+		written += bytes_end;
+	}
+
+	memcpy_fromio(kbuf, cd->cur_ptr, bytes);
+	if (copy_to_user(buf, kbuf, bytes)) {
+		err = -EFAULT;
+		goto err_free_buf;
+	}
+	cd->cur_ptr += bytes;
+	written += bytes;
+
+	kfree(kbuf);
+	return written;
+
+err_free_buf:
+	kfree(kbuf);
+
+	return err;
+}
+
+static const struct file_operations dpaa2_mc_console_fops = {
+	.owner          = THIS_MODULE,
+	.open           = dpaa2_mc_console_open,
+	.release        = dpaa2_console_close,
+	.read           = dpaa2_console_read,
+};
+
+static struct miscdevice dpaa2_mc_console_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "dpaa2_mc_console",
+	.fops = &dpaa2_mc_console_fops
+};
+
+static const struct file_operations dpaa2_aiop_console_fops = {
+	.owner          = THIS_MODULE,
+	.open           = dpaa2_aiop_console_open,
+	.release        = dpaa2_console_close,
+	.read           = dpaa2_console_read,
+};
+
+static struct miscdevice dpaa2_aiop_console_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "dpaa2_aiop_console",
+	.fops = &dpaa2_aiop_console_fops
+};
+
+static int dpaa2_console_probe(struct platform_device *pdev)
+{
+	int error;
+
+	error = of_address_to_resource(pdev->dev.of_node, 0, &mc_base_addr);
+	if (error < 0) {
+		pr_err("of_address_to_resource() failed for %pOF with %d\n",
+		       pdev->dev.of_node, error);
+		return error;
+	}
+
+	error = misc_register(&dpaa2_mc_console_dev);
+	if (error) {
+		pr_err("cannot register device %s\n",
+		       dpaa2_mc_console_dev.name);
+		goto err_register_mc;
+	}
+
+	error = misc_register(&dpaa2_aiop_console_dev);
+	if (error) {
+		pr_err("cannot register device %s\n",
+		       dpaa2_aiop_console_dev.name);
+		goto err_register_aiop;
+	}
+
+	return 0;
+
+err_register_aiop:
+	misc_deregister(&dpaa2_mc_console_dev);
+err_register_mc:
+	return error;
+}
+
+static int dpaa2_console_remove(struct platform_device *pdev)
+{
+	misc_deregister(&dpaa2_mc_console_dev);
+	misc_deregister(&dpaa2_aiop_console_dev);
+
+	return 0;
+}
+
+static const struct of_device_id dpaa2_console_match_table[] = {
+	{ .compatible = "fsl,dpaa2-console",},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, dpaa2_console_match_table);
+
+static struct platform_driver dpaa2_console_driver = {
+	.driver = {
+		   .name = "dpaa2-console",
+		   .pm = NULL,
+		   .of_match_table = dpaa2_console_match_table,
+		   },
+	.probe = dpaa2_console_probe,
+	.remove = dpaa2_console_remove,
+};
+module_platform_driver(dpaa2_console_driver);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Roy Pledge <roy.pledge@nxp.com>");
+MODULE_DESCRIPTION("DPAA2 console driver");