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, 337 insertions, 0 deletions

diff --git a/drivers/mtd/nand/raw/nand_onfi.c b/drivers/mtd/nand/raw/nand_onfi.c
new file mode 100644
index 000000000..7586befce
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_onfi.c
@@ -0,0 +1,337 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ *		  2002-2006 Thomas Gleixner (tglx@linutronix.de)
+ *
+ *  Credits:
+ *	David Woodhouse for adding multichip support
+ *
+ *	Aleph One Ltd. and Toby Churchill Ltd. for supporting the
+ *	rework for 2K page size chips
+ *
+ * This file contains all ONFI helpers.
+ */
+
+#include <linux/slab.h>
+
+#include "internals.h"
+
+#define ONFI_PARAM_PAGES 3
+
+u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
+{
+	int i;
+	while (len--) {
+		crc ^= *p++ << 8;
+		for (i = 0; i < 8; i++)
+			crc = (crc << 1) ^ ((crc & 0x8000) ? 0x8005 : 0);
+	}
+
+	return crc;
+}
+
+/* Parse the Extended Parameter Page. */
+static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
+					    struct nand_onfi_params *p)
+{
+	struct nand_device *base = &chip->base;
+	struct nand_ecc_props requirements;
+	struct onfi_ext_param_page *ep;
+	struct onfi_ext_section *s;
+	struct onfi_ext_ecc_info *ecc;
+	uint8_t *cursor;
+	int ret;
+	int len;
+	int i;
+
+	len = le16_to_cpu(p->ext_param_page_length) * 16;
+	ep = kmalloc(len, GFP_KERNEL);
+	if (!ep)
+		return -ENOMEM;
+
+	/*
+	 * Use the Change Read Column command to skip the ONFI param pages and
+	 * ensure we read at the right location.
+	 */
+	ret = nand_change_read_column_op(chip,
+					 sizeof(*p) * p->num_of_param_pages,
+					 ep, len, true);
+	if (ret)
+		goto ext_out;
+
+	ret = -EINVAL;
+	if ((onfi_crc16(ONFI_CRC_BASE, ((uint8_t *)ep) + 2, len - 2)
+		!= le16_to_cpu(ep->crc))) {
+		pr_debug("fail in the CRC.\n");
+		goto ext_out;
+	}
+
+	/*
+	 * Check the signature.
+	 * Do not strictly follow the ONFI spec, maybe changed in future.
+	 */
+	if (strncmp(ep->sig, "EPPS", 4)) {
+		pr_debug("The signature is invalid.\n");
+		goto ext_out;
+	}
+
+	/* find the ECC section. */
+	cursor = (uint8_t *)(ep + 1);
+	for (i = 0; i < ONFI_EXT_SECTION_MAX; i++) {
+		s = ep->sections + i;
+		if (s->type == ONFI_SECTION_TYPE_2)
+			break;
+		cursor += s->length * 16;
+	}
+	if (i == ONFI_EXT_SECTION_MAX) {
+		pr_debug("We can not find the ECC section.\n");
+		goto ext_out;
+	}
+
+	/* get the info we want. */
+	ecc = (struct onfi_ext_ecc_info *)cursor;
+
+	if (!ecc->codeword_size) {
+		pr_debug("Invalid codeword size\n");
+		goto ext_out;
+	}
+
+	requirements.strength = ecc->ecc_bits;
+	requirements.step_size = 1 << ecc->codeword_size;
+	nanddev_set_ecc_requirements(base, &requirements);
+
+	ret = 0;
+
+ext_out:
+	kfree(ep);
+	return ret;
+}
+
+/*
+ * Recover data with bit-wise majority
+ */
+static void nand_bit_wise_majority(const void **srcbufs,
+				   unsigned int nsrcbufs,
+				   void *dstbuf,
+				   unsigned int bufsize)
+{
+	int i, j, k;
+
+	for (i = 0; i < bufsize; i++) {
+		u8 val = 0;
+
+		for (j = 0; j < 8; j++) {
+			unsigned int cnt = 0;
+
+			for (k = 0; k < nsrcbufs; k++) {
+				const u8 *srcbuf = srcbufs[k];
+
+				if (srcbuf[i] & BIT(j))
+					cnt++;
+			}
+
+			if (cnt > nsrcbufs / 2)
+				val |= BIT(j);
+		}
+
+		((u8 *)dstbuf)[i] = val;
+	}
+}
+
+/*
+ * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
+ */
+int nand_onfi_detect(struct nand_chip *chip)
+{
+	struct nand_device *base = &chip->base;
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct nand_memory_organization *memorg;
+	struct nand_onfi_params *p = NULL, *pbuf;
+	struct onfi_params *onfi;
+	bool use_datain = false;
+	int onfi_version = 0;
+	char id[4];
+	int i, ret, val;
+	u16 crc;
+
+	memorg = nanddev_get_memorg(&chip->base);
+
+	/* Try ONFI for unknown chip or LP */
+	ret = nand_readid_op(chip, 0x20, id, sizeof(id));
+	if (ret || strncmp(id, "ONFI", 4))
+		return 0;
+
+	/* ONFI chip: allocate a buffer to hold its parameter page */
+	pbuf = kzalloc((sizeof(*pbuf) * ONFI_PARAM_PAGES), GFP_KERNEL);
+	if (!pbuf)
+		return -ENOMEM;
+
+	if (!nand_has_exec_op(chip) ||
+	    !nand_read_data_op(chip, &pbuf[0], sizeof(*pbuf), true, true))
+		use_datain = true;
+
+	for (i = 0; i < ONFI_PARAM_PAGES; i++) {
+		if (!i)
+			ret = nand_read_param_page_op(chip, 0, &pbuf[i],
+						      sizeof(*pbuf));
+		else if (use_datain)
+			ret = nand_read_data_op(chip, &pbuf[i], sizeof(*pbuf),
+						true, false);
+		else
+			ret = nand_change_read_column_op(chip, sizeof(*pbuf) * i,
+							 &pbuf[i], sizeof(*pbuf),
+							 true);
+		if (ret) {
+			ret = 0;
+			goto free_onfi_param_page;
+		}
+
+		crc = onfi_crc16(ONFI_CRC_BASE, (u8 *)&pbuf[i], 254);
+		if (crc == le16_to_cpu(pbuf[i].crc)) {
+			p = &pbuf[i];
+			break;
+		}
+	}
+
+	if (i == ONFI_PARAM_PAGES) {
+		const void *srcbufs[ONFI_PARAM_PAGES];
+		unsigned int j;
+
+		for (j = 0; j < ONFI_PARAM_PAGES; j++)
+			srcbufs[j] = pbuf + j;
+
+		pr_warn("Could not find a valid ONFI parameter page, trying bit-wise majority to recover it\n");
+		nand_bit_wise_majority(srcbufs, ONFI_PARAM_PAGES, pbuf,
+				       sizeof(*pbuf));
+
+		crc = onfi_crc16(ONFI_CRC_BASE, (u8 *)pbuf, 254);
+		if (crc != le16_to_cpu(pbuf->crc)) {
+			pr_err("ONFI parameter recovery failed, aborting\n");
+			goto free_onfi_param_page;
+		}
+		p = pbuf;
+	}
+
+	if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&
+	    chip->manufacturer.desc->ops->fixup_onfi_param_page)
+		chip->manufacturer.desc->ops->fixup_onfi_param_page(chip, p);
+
+	/* Check version */
+	val = le16_to_cpu(p->revision);
+	if (val & ONFI_VERSION_2_3)
+		onfi_version = 23;
+	else if (val & ONFI_VERSION_2_2)
+		onfi_version = 22;
+	else if (val & ONFI_VERSION_2_1)
+		onfi_version = 21;
+	else if (val & ONFI_VERSION_2_0)
+		onfi_version = 20;
+	else if (val & ONFI_VERSION_1_0)
+		onfi_version = 10;
+
+	if (!onfi_version) {
+		pr_info("unsupported ONFI version: %d\n", val);
+		goto free_onfi_param_page;
+	}
+
+	sanitize_string(p->manufacturer, sizeof(p->manufacturer));
+	sanitize_string(p->model, sizeof(p->model));
+	chip->parameters.model = kstrdup(p->model, GFP_KERNEL);
+	if (!chip->parameters.model) {
+		ret = -ENOMEM;
+		goto free_onfi_param_page;
+	}
+
+	memorg->pagesize = le32_to_cpu(p->byte_per_page);
+	mtd->writesize = memorg->pagesize;
+
+	/*
+	 * pages_per_block and blocks_per_lun may not be a power-of-2 size
+	 * (don't ask me who thought of this...). MTD assumes that these
+	 * dimensions will be power-of-2, so just truncate the remaining area.
+	 */
+	memorg->pages_per_eraseblock =
+			1 << (fls(le32_to_cpu(p->pages_per_block)) - 1);
+	mtd->erasesize = memorg->pages_per_eraseblock * memorg->pagesize;
+
+	memorg->oobsize = le16_to_cpu(p->spare_bytes_per_page);
+	mtd->oobsize = memorg->oobsize;
+
+	memorg->luns_per_target = p->lun_count;
+	memorg->planes_per_lun = 1 << p->interleaved_bits;
+
+	/* See erasesize comment */
+	memorg->eraseblocks_per_lun =
+		1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1);
+	memorg->max_bad_eraseblocks_per_lun = le32_to_cpu(p->blocks_per_lun);
+	memorg->bits_per_cell = p->bits_per_cell;
+
+	if (le16_to_cpu(p->features) & ONFI_FEATURE_16_BIT_BUS)
+		chip->options |= NAND_BUSWIDTH_16;
+
+	if (p->ecc_bits != 0xff) {
+		struct nand_ecc_props requirements = {
+			.strength = p->ecc_bits,
+			.step_size = 512,
+		};
+
+		nanddev_set_ecc_requirements(base, &requirements);
+	} else if (onfi_version >= 21 &&
+		(le16_to_cpu(p->features) & ONFI_FEATURE_EXT_PARAM_PAGE)) {
+
+		/*
+		 * The nand_flash_detect_ext_param_page() uses the
+		 * Change Read Column command which maybe not supported
+		 * by the chip->legacy.cmdfunc. So try to update the
+		 * chip->legacy.cmdfunc now. We do not replace user supplied
+		 * command function.
+		 */
+		nand_legacy_adjust_cmdfunc(chip);
+
+		/* The Extended Parameter Page is supported since ONFI 2.1. */
+		if (nand_flash_detect_ext_param_page(chip, p))
+			pr_warn("Failed to detect ONFI extended param page\n");
+	} else {
+		pr_warn("Could not retrieve ONFI ECC requirements\n");
+	}
+
+	/* Save some parameters from the parameter page for future use */
+	if (le16_to_cpu(p->opt_cmd) & ONFI_OPT_CMD_SET_GET_FEATURES) {
+		chip->parameters.supports_set_get_features = true;
+		bitmap_set(chip->parameters.get_feature_list,
+			   ONFI_FEATURE_ADDR_TIMING_MODE, 1);
+		bitmap_set(chip->parameters.set_feature_list,
+			   ONFI_FEATURE_ADDR_TIMING_MODE, 1);
+	}
+
+	onfi = kzalloc(sizeof(*onfi), GFP_KERNEL);
+	if (!onfi) {
+		ret = -ENOMEM;
+		goto free_model;
+	}
+
+	onfi->version = onfi_version;
+	onfi->tPROG = le16_to_cpu(p->t_prog);
+	onfi->tBERS = le16_to_cpu(p->t_bers);
+	onfi->tR = le16_to_cpu(p->t_r);
+	onfi->tCCS = le16_to_cpu(p->t_ccs);
+	onfi->fast_tCAD = le16_to_cpu(p->nvddr_nvddr2_features) & BIT(0);
+	onfi->sdr_timing_modes = le16_to_cpu(p->sdr_timing_modes);
+	if (le16_to_cpu(p->features) & ONFI_FEATURE_NV_DDR)
+		onfi->nvddr_timing_modes = le16_to_cpu(p->nvddr_timing_modes);
+	onfi->vendor_revision = le16_to_cpu(p->vendor_revision);
+	memcpy(onfi->vendor, p->vendor, sizeof(p->vendor));
+	chip->parameters.onfi = onfi;
+
+	/* Identification done, free the full ONFI parameter page and exit */
+	kfree(pbuf);
+
+	return 1;
+
+free_model:
+	kfree(chip->parameters.model);
+free_onfi_param_page:
+	kfree(pbuf);
+
+	return ret;
+}