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/mtd/spi-nor/debugfs.c b/drivers/mtd/spi-nor/debugfs.c
new file mode 100644
index 000000000..ff895f675
--- /dev/null
+++ b/drivers/mtd/spi-nor/debugfs.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/mtd/spi-nor.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi-mem.h>
+#include <linux/debugfs.h>
+
+#include "core.h"
+
+#define SPI_NOR_DEBUGFS_ROOT "spi-nor"
+
+#define SNOR_F_NAME(name) [ilog2(SNOR_F_##name)] = #name
+static const char *const snor_f_names[] = {
+	SNOR_F_NAME(HAS_SR_TB),
+	SNOR_F_NAME(NO_OP_CHIP_ERASE),
+	SNOR_F_NAME(BROKEN_RESET),
+	SNOR_F_NAME(4B_OPCODES),
+	SNOR_F_NAME(HAS_4BAIT),
+	SNOR_F_NAME(HAS_LOCK),
+	SNOR_F_NAME(HAS_16BIT_SR),
+	SNOR_F_NAME(NO_READ_CR),
+	SNOR_F_NAME(HAS_SR_TB_BIT6),
+	SNOR_F_NAME(HAS_4BIT_BP),
+	SNOR_F_NAME(HAS_SR_BP3_BIT6),
+	SNOR_F_NAME(IO_MODE_EN_VOLATILE),
+	SNOR_F_NAME(SOFT_RESET),
+	SNOR_F_NAME(SWP_IS_VOLATILE),
+};
+#undef SNOR_F_NAME
+
+static const char *spi_nor_protocol_name(enum spi_nor_protocol proto)
+{
+	switch (proto) {
+	case SNOR_PROTO_1_1_1:     return "1S-1S-1S";
+	case SNOR_PROTO_1_1_2:     return "1S-1S-2S";
+	case SNOR_PROTO_1_1_4:     return "1S-1S-4S";
+	case SNOR_PROTO_1_1_8:     return "1S-1S-8S";
+	case SNOR_PROTO_1_2_2:     return "1S-2S-2S";
+	case SNOR_PROTO_1_4_4:     return "1S-4S-4S";
+	case SNOR_PROTO_1_8_8:     return "1S-8S-8S";
+	case SNOR_PROTO_2_2_2:     return "2S-2S-2S";
+	case SNOR_PROTO_4_4_4:     return "4S-4S-4S";
+	case SNOR_PROTO_8_8_8:     return "8S-8S-8S";
+	case SNOR_PROTO_1_1_1_DTR: return "1D-1D-1D";
+	case SNOR_PROTO_1_2_2_DTR: return "1D-2D-2D";
+	case SNOR_PROTO_1_4_4_DTR: return "1D-4D-4D";
+	case SNOR_PROTO_1_8_8_DTR: return "1D-8D-8D";
+	case SNOR_PROTO_8_8_8_DTR: return "8D-8D-8D";
+	}
+
+	return "<unknown>";
+}
+
+static void spi_nor_print_flags(struct seq_file *s, unsigned long flags,
+				const char *const *names, int names_len)
+{
+	bool sep = false;
+	int i;
+
+	for (i = 0; i < sizeof(flags) * BITS_PER_BYTE; i++) {
+		if (!(flags & BIT(i)))
+			continue;
+		if (sep)
+			seq_puts(s, " | ");
+		sep = true;
+		if (i < names_len && names[i])
+			seq_puts(s, names[i]);
+		else
+			seq_printf(s, "1<<%d", i);
+	}
+}
+
+static int spi_nor_params_show(struct seq_file *s, void *data)
+{
+	struct spi_nor *nor = s->private;
+	struct spi_nor_flash_parameter *params = nor->params;
+	struct spi_nor_erase_map *erase_map = &params->erase_map;
+	struct spi_nor_erase_region *region;
+	const struct flash_info *info = nor->info;
+	char buf[16], *str;
+	int i;
+
+	seq_printf(s, "name\t\t%s\n", info->name);
+	seq_printf(s, "id\t\t%*ph\n", SPI_NOR_MAX_ID_LEN, nor->id);
+	string_get_size(params->size, 1, STRING_UNITS_2, buf, sizeof(buf));
+	seq_printf(s, "size\t\t%s\n", buf);
+	seq_printf(s, "write size\t%u\n", params->writesize);
+	seq_printf(s, "page size\t%u\n", params->page_size);
+	seq_printf(s, "address nbytes\t%u\n", nor->addr_nbytes);
+
+	seq_puts(s, "flags\t\t");
+	spi_nor_print_flags(s, nor->flags, snor_f_names, sizeof(snor_f_names));
+	seq_puts(s, "\n");
+
+	seq_puts(s, "\nopcodes\n");
+	seq_printf(s, " read\t\t0x%02x\n", nor->read_opcode);
+	seq_printf(s, "  dummy cycles\t%u\n", nor->read_dummy);
+	seq_printf(s, " erase\t\t0x%02x\n", nor->erase_opcode);
+	seq_printf(s, " program\t0x%02x\n", nor->program_opcode);
+
+	switch (nor->cmd_ext_type) {
+	case SPI_NOR_EXT_NONE:
+		str = "none";
+		break;
+	case SPI_NOR_EXT_REPEAT:
+		str = "repeat";
+		break;
+	case SPI_NOR_EXT_INVERT:
+		str = "invert";
+		break;
+	default:
+		str = "<unknown>";
+		break;
+	}
+	seq_printf(s, " 8D extension\t%s\n", str);
+
+	seq_puts(s, "\nprotocols\n");
+	seq_printf(s, " read\t\t%s\n",
+		   spi_nor_protocol_name(nor->read_proto));
+	seq_printf(s, " write\t\t%s\n",
+		   spi_nor_protocol_name(nor->write_proto));
+	seq_printf(s, " register\t%s\n",
+		   spi_nor_protocol_name(nor->reg_proto));
+
+	seq_puts(s, "\nerase commands\n");
+	for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++) {
+		struct spi_nor_erase_type *et = &erase_map->erase_type[i];
+
+		if (et->size) {
+			string_get_size(et->size, 1, STRING_UNITS_2, buf,
+					sizeof(buf));
+			seq_printf(s, " %02x (%s) [%d]\n", et->opcode, buf, i);
+		}
+	}
+
+	if (!(nor->flags & SNOR_F_NO_OP_CHIP_ERASE)) {
+		string_get_size(params->size, 1, STRING_UNITS_2, buf, sizeof(buf));
+		seq_printf(s, " %02x (%s)\n", SPINOR_OP_CHIP_ERASE, buf);
+	}
+
+	seq_puts(s, "\nsector map\n");
+	seq_puts(s, " region (in hex)   | erase mask | flags\n");
+	seq_puts(s, " ------------------+------------+----------\n");
+	for (region = erase_map->regions;
+	     region;
+	     region = spi_nor_region_next(region)) {
+		u64 start = region->offset & ~SNOR_ERASE_FLAGS_MASK;
+		u64 flags = region->offset & SNOR_ERASE_FLAGS_MASK;
+		u64 end = start + region->size - 1;
+
+		seq_printf(s, " %08llx-%08llx |     [%c%c%c%c] | %s\n",
+			   start, end,
+			   flags & BIT(0) ? '0' : ' ',
+			   flags & BIT(1) ? '1' : ' ',
+			   flags & BIT(2) ? '2' : ' ',
+			   flags & BIT(3) ? '3' : ' ',
+			   flags & SNOR_OVERLAID_REGION ? "overlaid" : "");
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(spi_nor_params);
+
+static void spi_nor_print_read_cmd(struct seq_file *s, u32 cap,
+				   struct spi_nor_read_command *cmd)
+{
+	seq_printf(s, " %s%s\n", spi_nor_protocol_name(cmd->proto),
+		   cap == SNOR_HWCAPS_READ_FAST ? " (fast read)" : "");
+	seq_printf(s, "  opcode\t0x%02x\n", cmd->opcode);
+	seq_printf(s, "  mode cycles\t%u\n", cmd->num_mode_clocks);
+	seq_printf(s, "  dummy cycles\t%u\n", cmd->num_wait_states);
+}
+
+static void spi_nor_print_pp_cmd(struct seq_file *s,
+				 struct spi_nor_pp_command *cmd)
+{
+	seq_printf(s, " %s\n", spi_nor_protocol_name(cmd->proto));
+	seq_printf(s, "  opcode\t0x%02x\n", cmd->opcode);
+}
+
+static int spi_nor_capabilities_show(struct seq_file *s, void *data)
+{
+	struct spi_nor *nor = s->private;
+	struct spi_nor_flash_parameter *params = nor->params;
+	u32 hwcaps = params->hwcaps.mask;
+	int i, cmd;
+
+	seq_puts(s, "Supported read modes by the flash\n");
+	for (i = 0; i < sizeof(hwcaps) * BITS_PER_BYTE; i++) {
+		if (!(hwcaps & BIT(i)))
+			continue;
+
+		cmd = spi_nor_hwcaps_read2cmd(BIT(i));
+		if (cmd < 0)
+			continue;
+
+		spi_nor_print_read_cmd(s, BIT(i), &params->reads[cmd]);
+		hwcaps &= ~BIT(i);
+	}
+
+	seq_puts(s, "\nSupported page program modes by the flash\n");
+	for (i = 0; i < sizeof(hwcaps) * BITS_PER_BYTE; i++) {
+		if (!(hwcaps & BIT(i)))
+			continue;
+
+		cmd = spi_nor_hwcaps_pp2cmd(BIT(i));
+		if (cmd < 0)
+			continue;
+
+		spi_nor_print_pp_cmd(s, &params->page_programs[cmd]);
+		hwcaps &= ~BIT(i);
+	}
+
+	if (hwcaps)
+		seq_printf(s, "\nunknown hwcaps 0x%x\n", hwcaps);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(spi_nor_capabilities);
+
+static void spi_nor_debugfs_unregister(void *data)
+{
+	struct spi_nor *nor = data;
+
+	debugfs_remove(nor->debugfs_root);
+	nor->debugfs_root = NULL;
+}
+
+void spi_nor_debugfs_register(struct spi_nor *nor)
+{
+	struct dentry *rootdir, *d;
+	int ret;
+
+	/* Create rootdir once. Will never be deleted again. */
+	rootdir = debugfs_lookup(SPI_NOR_DEBUGFS_ROOT, NULL);
+	if (!rootdir)
+		rootdir = debugfs_create_dir(SPI_NOR_DEBUGFS_ROOT, NULL);
+
+	ret = devm_add_action(nor->dev, spi_nor_debugfs_unregister, nor);
+	if (ret)
+		return;
+
+	d = debugfs_create_dir(dev_name(nor->dev), rootdir);
+	nor->debugfs_root = d;
+
+	debugfs_create_file("params", 0444, d, nor, &spi_nor_params_fops);
+	debugfs_create_file("capabilities", 0444, d, nor,
+			    &spi_nor_capabilities_fops);
+}