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, 361 insertions, 0 deletions

diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
new file mode 100644
index 000000000..80943a00e
--- /dev/null
+++ b/arch/parisc/kernel/pdt.c
@@ -0,0 +1,361 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *    Page Deallocation Table (PDT) support
+ *
+ *    The Page Deallocation Table (PDT) is maintained by firmware and holds a
+ *    list of memory addresses in which memory errors were detected.
+ *    The list contains both single-bit (correctable) and double-bit
+ *    (uncorrectable) errors.
+ *
+ *    Copyright 2017 by Helge Deller <deller@gmx.de>
+ *
+ *    possible future enhancements:
+ *    - add userspace interface via procfs or sysfs to clear PDT
+ */
+
+#include <linux/memblock.h>
+#include <linux/seq_file.h>
+#include <linux/kthread.h>
+#include <linux/initrd.h>
+#include <linux/pgtable.h>
+#include <linux/mm.h>
+
+#include <asm/pdc.h>
+#include <asm/pdcpat.h>
+#include <asm/sections.h>
+
+enum pdt_access_type {
+	PDT_NONE,
+	PDT_PDC,
+	PDT_PAT_NEW,
+	PDT_PAT_CELL
+};
+
+static enum pdt_access_type pdt_type;
+
+/* PDT poll interval: 1 minute if errors, 5 minutes if everything OK. */
+#define PDT_POLL_INTERVAL_DEFAULT	(5*60*HZ)
+#define PDT_POLL_INTERVAL_SHORT		(1*60*HZ)
+static unsigned long pdt_poll_interval = PDT_POLL_INTERVAL_DEFAULT;
+
+/* global PDT status information */
+static struct pdc_mem_retinfo pdt_status;
+
+#define MAX_PDT_TABLE_SIZE	PAGE_SIZE
+#define MAX_PDT_ENTRIES		(MAX_PDT_TABLE_SIZE / sizeof(unsigned long))
+static unsigned long pdt_entry[MAX_PDT_ENTRIES] __page_aligned_bss;
+
+/*
+ * Constants for the pdt_entry format:
+ * A pdt_entry holds the physical address in bits 0-57, bits 58-61 are
+ * reserved, bit 62 is the perm bit and bit 63 is the error_type bit.
+ * The perm bit indicates whether the error have been verified as a permanent
+ * error (value of 1) or has not been verified, and may be transient (value
+ * of 0). The error_type bit indicates whether the error is a single bit error
+ * (value of 1) or a multiple bit error.
+ * On non-PAT machines phys_addr is encoded in bits 0-59 and error_type in bit
+ * 63. Those machines don't provide the perm bit.
+ */
+
+#define PDT_ADDR_PHYS_MASK	(pdt_type != PDT_PDC ? ~0x3f : ~0x0f)
+#define PDT_ADDR_PERM_ERR	(pdt_type != PDT_PDC ? 2UL : 0UL)
+#define PDT_ADDR_SINGLE_ERR	1UL
+
+/* report PDT entries via /proc/meminfo */
+void arch_report_meminfo(struct seq_file *m)
+{
+	if (pdt_type == PDT_NONE)
+		return;
+
+	seq_printf(m, "PDT_max_entries: %7lu\n",
+			pdt_status.pdt_size);
+	seq_printf(m, "PDT_cur_entries: %7lu\n",
+			pdt_status.pdt_entries);
+}
+
+static int get_info_pat_new(void)
+{
+	struct pdc_pat_mem_retinfo pat_rinfo;
+	int ret;
+
+	/* newer PAT machines like C8000 report info for all cells */
+	if (is_pdc_pat())
+		ret = pdc_pat_mem_pdt_info(&pat_rinfo);
+	else
+		return PDC_BAD_PROC;
+
+	pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
+	pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
+	pdt_status.pdt_status = 0;
+	pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
+	pdt_status.good_mem = pat_rinfo.good_mem;
+
+	return ret;
+}
+
+static int get_info_pat_cell(void)
+{
+	struct pdc_pat_mem_cell_pdt_retinfo cell_rinfo;
+	int ret;
+
+	/* older PAT machines like rp5470 report cell info only */
+	if (is_pdc_pat())
+		ret = pdc_pat_mem_pdt_cell_info(&cell_rinfo, parisc_cell_num);
+	else
+		return PDC_BAD_PROC;
+
+	pdt_status.pdt_size = cell_rinfo.max_pdt_entries;
+	pdt_status.pdt_entries = cell_rinfo.current_pdt_entries;
+	pdt_status.pdt_status = 0;
+	pdt_status.first_dbe_loc = cell_rinfo.first_dbe_loc;
+	pdt_status.good_mem = cell_rinfo.good_mem;
+
+	return ret;
+}
+
+static void report_mem_err(unsigned long pde)
+{
+	struct pdc_pat_mem_phys_mem_location loc;
+	unsigned long addr;
+	char dimm_txt[32];
+
+	addr = pde & PDT_ADDR_PHYS_MASK;
+
+	/* show DIMM slot description on PAT machines */
+	if (is_pdc_pat()) {
+		pdc_pat_mem_get_dimm_phys_location(&loc, addr);
+		sprintf(dimm_txt, "DIMM slot %02x, ", loc.dimm_slot);
+	} else
+		dimm_txt[0] = 0;
+
+	pr_warn("PDT: BAD MEMORY at 0x%08lx, %s%s%s-bit error.\n",
+		addr, dimm_txt,
+		pde & PDT_ADDR_PERM_ERR ? "permanent ":"",
+		pde & PDT_ADDR_SINGLE_ERR ? "single":"multi");
+}
+
+
+/*
+ * pdc_pdt_init()
+ *
+ * Initialize kernel PDT structures, read initial PDT table from firmware,
+ * report all current PDT entries and mark bad memory with memblock_reserve()
+ * to avoid that the kernel will use broken memory areas.
+ *
+ */
+void __init pdc_pdt_init(void)
+{
+	int ret, i;
+	unsigned long entries;
+	struct pdc_mem_read_pdt pdt_read_ret;
+
+	pdt_type = PDT_PAT_NEW;
+	ret = get_info_pat_new();
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_PAT_CELL;
+		ret = get_info_pat_cell();
+	}
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_PDC;
+		/* non-PAT machines provide the standard PDC call */
+		ret = pdc_mem_pdt_info(&pdt_status);
+	}
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_NONE;
+		pr_info("PDT: Firmware does not provide any page deallocation"
+			" information.\n");
+		return;
+	}
+
+	entries = pdt_status.pdt_entries;
+	if (WARN_ON(entries > MAX_PDT_ENTRIES))
+		entries = pdt_status.pdt_entries = MAX_PDT_ENTRIES;
+
+	pr_info("PDT: type %s, size %lu, entries %lu, status %lu, dbe_loc 0x%lx,"
+		" good_mem %lu MB\n",
+			pdt_type == PDT_PDC ? __stringify(PDT_PDC) :
+			pdt_type == PDT_PAT_CELL ? __stringify(PDT_PAT_CELL)
+						 : __stringify(PDT_PAT_NEW),
+			pdt_status.pdt_size, pdt_status.pdt_entries,
+			pdt_status.pdt_status, pdt_status.first_dbe_loc,
+			pdt_status.good_mem / 1024 / 1024);
+
+	if (entries == 0) {
+		pr_info("PDT: Firmware reports all memory OK.\n");
+		return;
+	}
+
+	if (pdt_status.first_dbe_loc &&
+		pdt_status.first_dbe_loc <= __pa((unsigned long)&_end))
+		pr_crit("CRITICAL: Bad memory inside kernel image memory area!\n");
+
+	pr_warn("PDT: Firmware reports %lu entries of faulty memory:\n",
+		entries);
+
+	if (pdt_type == PDT_PDC)
+		ret = pdc_mem_pdt_read_entries(&pdt_read_ret, pdt_entry);
+	else {
+#ifdef CONFIG_64BIT
+		struct pdc_pat_mem_read_pd_retinfo pat_pret;
+
+		if (pdt_type == PDT_PAT_CELL)
+			ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_ENTRIES);
+		else
+			ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_TABLE_SIZE, 0);
+#else
+		ret = PDC_BAD_PROC;
+#endif
+	}
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_NONE;
+		pr_warn("PDT: Get PDT entries failed with %d\n", ret);
+		return;
+	}
+
+	for (i = 0; i < pdt_status.pdt_entries; i++) {
+		unsigned long addr;
+
+		report_mem_err(pdt_entry[i]);
+
+		addr = pdt_entry[i] & PDT_ADDR_PHYS_MASK;
+		if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
+			addr >= initrd_start && addr < initrd_end)
+			pr_crit("CRITICAL: initrd possibly broken "
+				"due to bad memory!\n");
+
+		/* mark memory page bad */
+		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
+		num_poisoned_pages_inc(addr >> PAGE_SHIFT);
+	}
+}
+
+
+/*
+ * This is the PDT kernel thread main loop.
+ */
+
+static int pdt_mainloop(void *unused)
+{
+	struct pdc_mem_read_pdt pdt_read_ret;
+	struct pdc_pat_mem_read_pd_retinfo pat_pret __maybe_unused;
+	unsigned long old_num_entries;
+	unsigned long *bad_mem_ptr;
+	int num, ret;
+
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		old_num_entries = pdt_status.pdt_entries;
+
+		schedule_timeout(pdt_poll_interval);
+		if (kthread_should_stop())
+			break;
+
+		/* Do we have new PDT entries? */
+		switch (pdt_type) {
+		case PDT_PAT_NEW:
+			ret = get_info_pat_new();
+			break;
+		case PDT_PAT_CELL:
+			ret = get_info_pat_cell();
+			break;
+		default:
+			ret = pdc_mem_pdt_info(&pdt_status);
+			break;
+		}
+
+		if (ret != PDC_OK) {
+			pr_warn("PDT: unexpected failure %d\n", ret);
+			return -EINVAL;
+		}
+
+		/* if no new PDT entries, just wait again */
+		num = pdt_status.pdt_entries - old_num_entries;
+		if (num <= 0)
+			continue;
+
+		/* decrease poll interval in case we found memory errors */
+		if (pdt_status.pdt_entries &&
+			pdt_poll_interval == PDT_POLL_INTERVAL_DEFAULT)
+			pdt_poll_interval = PDT_POLL_INTERVAL_SHORT;
+
+		/* limit entries to get */
+		if (num > MAX_PDT_ENTRIES) {
+			num = MAX_PDT_ENTRIES;
+			pdt_status.pdt_entries = old_num_entries + num;
+		}
+
+		/* get new entries */
+		switch (pdt_type) {
+#ifdef CONFIG_64BIT
+		case PDT_PAT_CELL:
+			if (pdt_status.pdt_entries > MAX_PDT_ENTRIES) {
+				pr_crit("PDT: too many entries.\n");
+				return -ENOMEM;
+			}
+			ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_ENTRIES);
+			bad_mem_ptr = &pdt_entry[old_num_entries];
+			break;
+		case PDT_PAT_NEW:
+			ret = pdc_pat_mem_read_pd_pdt(&pat_pret,
+				pdt_entry,
+				num * sizeof(unsigned long),
+				old_num_entries * sizeof(unsigned long));
+			bad_mem_ptr = &pdt_entry[0];
+			break;
+#endif
+		default:
+			ret = pdc_mem_pdt_read_entries(&pdt_read_ret,
+				pdt_entry);
+			bad_mem_ptr = &pdt_entry[old_num_entries];
+			break;
+		}
+
+		/* report and mark memory broken */
+		while (num--) {
+			unsigned long pde = *bad_mem_ptr++;
+
+			report_mem_err(pde);
+
+#ifdef CONFIG_MEMORY_FAILURE
+			if ((pde & PDT_ADDR_PERM_ERR) ||
+			    ((pde & PDT_ADDR_SINGLE_ERR) == 0))
+				memory_failure(pde >> PAGE_SHIFT, 0);
+			else
+				soft_offline_page(pde >> PAGE_SHIFT, 0);
+#else
+			pr_crit("PDT: memory error at 0x%lx ignored.\n"
+				"Rebuild kernel with CONFIG_MEMORY_FAILURE=y "
+				"for real handling.\n",
+				pde & PDT_ADDR_PHYS_MASK);
+#endif
+
+		}
+	}
+
+	return 0;
+}
+
+
+static int __init pdt_initcall(void)
+{
+	struct task_struct *kpdtd_task;
+
+	if (pdt_type == PDT_NONE)
+		return -ENODEV;
+
+	kpdtd_task = kthread_run(pdt_mainloop, NULL, "kpdtd");
+	if (IS_ERR(kpdtd_task))
+		return PTR_ERR(kpdtd_task);
+
+	return 0;
+}
+
+late_initcall(pdt_initcall);