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, 468 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c b/drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c
new file mode 100644
index 000000000..c2c3397c5
--- /dev/null
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c
@@ -0,0 +1,468 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Microchip VCAP API debug file system support
+ *
+ * Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries.
+ *
+ */
+
+#include "vcap_api_private.h"
+#include "vcap_api_debugfs.h"
+
+struct vcap_admin_debugfs_info {
+	struct vcap_control *vctrl;
+	struct vcap_admin *admin;
+};
+
+struct vcap_port_debugfs_info {
+	struct vcap_control *vctrl;
+	struct net_device *ndev;
+};
+
+/* Dump the keyfields value and mask values */
+static void vcap_debugfs_show_rule_keyfield(struct vcap_control *vctrl,
+					    struct vcap_output_print *out,
+					    enum vcap_key_field key,
+					    const struct vcap_field *keyfield,
+					    struct vcap_client_keyfield_data *data)
+{
+	bool hex = false;
+	u8 *value, *mask;
+	int idx, bytes;
+
+	out->prf(out->dst, "    %s: W%d: ", vcap_keyfield_name(vctrl, key),
+		 keyfield[key].width);
+
+	switch (keyfield[key].type) {
+	case VCAP_FIELD_BIT:
+		out->prf(out->dst, "%d/%d", data->u1.value, data->u1.mask);
+		break;
+	case VCAP_FIELD_U32:
+		value = (u8 *)(&data->u32.value);
+		mask = (u8 *)(&data->u32.mask);
+
+		if (key == VCAP_KF_L3_IP4_SIP || key == VCAP_KF_L3_IP4_DIP) {
+			out->prf(out->dst, "%pI4h/%pI4h", &data->u32.value,
+				 &data->u32.mask);
+		} else if (key == VCAP_KF_ETYPE ||
+			   key == VCAP_KF_IF_IGR_PORT_MASK ||
+			   key == VCAP_KF_IF_EGR_PORT_MASK) {
+			hex = true;
+		} else {
+			u32 fmsk = (1 << keyfield[key].width) - 1;
+
+			if (keyfield[key].width == 32)
+				fmsk = ~0;
+			out->prf(out->dst, "%u/%u", data->u32.value & fmsk,
+				 data->u32.mask & fmsk);
+		}
+		break;
+	case VCAP_FIELD_U48:
+		value = data->u48.value;
+		mask = data->u48.mask;
+		if (key == VCAP_KF_L2_SMAC || key == VCAP_KF_L2_DMAC)
+			out->prf(out->dst, "%pMR/%pMR", data->u48.value,
+				 data->u48.mask);
+		else
+			hex = true;
+		break;
+	case VCAP_FIELD_U56:
+		value = data->u56.value;
+		mask = data->u56.mask;
+		hex = true;
+		break;
+	case VCAP_FIELD_U64:
+		value = data->u64.value;
+		mask = data->u64.mask;
+		hex = true;
+		break;
+	case VCAP_FIELD_U72:
+		value = data->u72.value;
+		mask = data->u72.mask;
+		hex = true;
+		break;
+	case VCAP_FIELD_U112:
+		value = data->u112.value;
+		mask = data->u112.mask;
+		hex = true;
+		break;
+	case VCAP_FIELD_U128:
+		value = data->u128.value;
+		mask = data->u128.mask;
+		if (key == VCAP_KF_L3_IP6_SIP || key == VCAP_KF_L3_IP6_DIP) {
+			u8 nvalue[16], nmask[16];
+
+			vcap_netbytes_copy(nvalue, data->u128.value,
+					   sizeof(nvalue));
+			vcap_netbytes_copy(nmask, data->u128.mask,
+					   sizeof(nmask));
+			out->prf(out->dst, "%pI6/%pI6", nvalue, nmask);
+		} else {
+			hex = true;
+		}
+		break;
+	}
+	if (hex) {
+		bytes = DIV_ROUND_UP(keyfield[key].width, BITS_PER_BYTE);
+		out->prf(out->dst, "0x");
+		for (idx = 0; idx < bytes; ++idx)
+			out->prf(out->dst, "%02x", value[bytes - idx - 1]);
+		out->prf(out->dst, "/0x");
+		for (idx = 0; idx < bytes; ++idx)
+			out->prf(out->dst, "%02x", mask[bytes - idx - 1]);
+	}
+	out->prf(out->dst, "\n");
+}
+
+static void
+vcap_debugfs_show_rule_actionfield(struct vcap_control *vctrl,
+				   struct vcap_output_print *out,
+				   enum vcap_action_field action,
+				   const struct vcap_field *actionfield,
+				   u8 *value)
+{
+	bool hex = false;
+	int idx, bytes;
+	u32 fmsk, val;
+
+	out->prf(out->dst, "    %s: W%d: ",
+		 vcap_actionfield_name(vctrl, action),
+		 actionfield[action].width);
+
+	switch (actionfield[action].type) {
+	case VCAP_FIELD_BIT:
+		out->prf(out->dst, "%d", value[0]);
+		break;
+	case VCAP_FIELD_U32:
+		fmsk = (1 << actionfield[action].width) - 1;
+		val = *(u32 *)value;
+		out->prf(out->dst, "%u", val & fmsk);
+		break;
+	case VCAP_FIELD_U48:
+	case VCAP_FIELD_U56:
+	case VCAP_FIELD_U64:
+	case VCAP_FIELD_U72:
+	case VCAP_FIELD_U112:
+	case VCAP_FIELD_U128:
+		hex = true;
+		break;
+	}
+	if (hex) {
+		bytes = DIV_ROUND_UP(actionfield[action].width, BITS_PER_BYTE);
+		out->prf(out->dst, "0x");
+		for (idx = 0; idx < bytes; ++idx)
+			out->prf(out->dst, "%02x", value[bytes - idx - 1]);
+	}
+	out->prf(out->dst, "\n");
+}
+
+static int vcap_debugfs_show_keysets(struct vcap_rule_internal *ri,
+				     struct vcap_output_print *out)
+{
+	struct vcap_admin *admin = ri->admin;
+	enum vcap_keyfield_set keysets[10];
+	struct vcap_keyset_list matches;
+	int err;
+
+	matches.keysets = keysets;
+	matches.cnt = 0;
+	matches.max = ARRAY_SIZE(keysets);
+
+	if (ri->state == VCAP_RS_DISABLED)
+		err = vcap_rule_get_keysets(ri, &matches);
+	else
+		err = vcap_find_keystream_keysets(ri->vctrl, admin->vtype,
+						  admin->cache.keystream,
+						  admin->cache.maskstream,
+						  false, 0, &matches);
+	if (err) {
+		pr_err("%s:%d: could not find valid keysets: %d\n",
+		       __func__, __LINE__, err);
+		return err;
+	}
+
+	out->prf(out->dst, "  keysets:");
+	for (int idx = 0; idx < matches.cnt; ++idx)
+		out->prf(out->dst, " %s",
+			 vcap_keyset_name(ri->vctrl, matches.keysets[idx]));
+	out->prf(out->dst, "\n");
+	return 0;
+}
+
+static int vcap_debugfs_show_rule_keyset(struct vcap_rule_internal *ri,
+					 struct vcap_output_print *out)
+{
+	struct vcap_control *vctrl = ri->vctrl;
+	struct vcap_admin *admin = ri->admin;
+	const struct vcap_field *keyfield;
+	struct vcap_client_keyfield *ckf;
+
+	vcap_debugfs_show_keysets(ri, out);
+	out->prf(out->dst, "  keyset_sw: %d\n", ri->keyset_sw);
+	out->prf(out->dst, "  keyset_sw_regs: %d\n", ri->keyset_sw_regs);
+
+	list_for_each_entry(ckf, &ri->data.keyfields, ctrl.list) {
+		keyfield = vcap_keyfields(vctrl, admin->vtype, ri->data.keyset);
+		vcap_debugfs_show_rule_keyfield(vctrl, out, ckf->ctrl.key,
+						keyfield, &ckf->data);
+	}
+
+	return 0;
+}
+
+static int vcap_debugfs_show_rule_actionset(struct vcap_rule_internal *ri,
+					    struct vcap_output_print *out)
+{
+	struct vcap_control *vctrl = ri->vctrl;
+	struct vcap_admin *admin = ri->admin;
+	const struct vcap_field *actionfield;
+	struct vcap_client_actionfield *caf;
+
+	out->prf(out->dst, "  actionset: %s\n",
+		 vcap_actionset_name(vctrl, ri->data.actionset));
+	out->prf(out->dst, "  actionset_sw: %d\n", ri->actionset_sw);
+	out->prf(out->dst, "  actionset_sw_regs: %d\n", ri->actionset_sw_regs);
+
+	list_for_each_entry(caf, &ri->data.actionfields, ctrl.list) {
+		actionfield = vcap_actionfields(vctrl, admin->vtype,
+						ri->data.actionset);
+		vcap_debugfs_show_rule_actionfield(vctrl, out, caf->ctrl.action,
+						   actionfield,
+						   &caf->data.u1.value);
+	}
+
+	return 0;
+}
+
+static void vcap_show_admin_rule(struct vcap_control *vctrl,
+				 struct vcap_admin *admin,
+				 struct vcap_output_print *out,
+				 struct vcap_rule_internal *ri)
+{
+	ri->counter.value = admin->cache.counter;
+	ri->counter.sticky = admin->cache.sticky;
+	out->prf(out->dst,
+		 "rule: %u, addr: [%d,%d], X%d, ctr[%d]: %d, hit: %d\n",
+		 ri->data.id, ri->addr, ri->addr + ri->size - 1, ri->size,
+		 ri->counter_id, ri->counter.value, ri->counter.sticky);
+	out->prf(out->dst, "  chain_id: %d\n", ri->data.vcap_chain_id);
+	out->prf(out->dst, "  user: %d\n", ri->data.user);
+	out->prf(out->dst, "  priority: %d\n", ri->data.priority);
+	out->prf(out->dst, "  state: ");
+	switch (ri->state) {
+	case VCAP_RS_PERMANENT:
+		out->prf(out->dst, "permanent\n");
+		break;
+	case VCAP_RS_DISABLED:
+		out->prf(out->dst, "disabled\n");
+		break;
+	case VCAP_RS_ENABLED:
+		out->prf(out->dst, "enabled\n");
+		break;
+	}
+	vcap_debugfs_show_rule_keyset(ri, out);
+	vcap_debugfs_show_rule_actionset(ri, out);
+}
+
+static void vcap_show_admin_info(struct vcap_control *vctrl,
+				 struct vcap_admin *admin,
+				 struct vcap_output_print *out)
+{
+	const struct vcap_info *vcap = &vctrl->vcaps[admin->vtype];
+
+	out->prf(out->dst, "name: %s\n", vcap->name);
+	out->prf(out->dst, "rows: %d\n", vcap->rows);
+	out->prf(out->dst, "sw_count: %d\n", vcap->sw_count);
+	out->prf(out->dst, "sw_width: %d\n", vcap->sw_width);
+	out->prf(out->dst, "sticky_width: %d\n", vcap->sticky_width);
+	out->prf(out->dst, "act_width: %d\n", vcap->act_width);
+	out->prf(out->dst, "default_cnt: %d\n", vcap->default_cnt);
+	out->prf(out->dst, "require_cnt_dis: %d\n", vcap->require_cnt_dis);
+	out->prf(out->dst, "version: %d\n", vcap->version);
+	out->prf(out->dst, "vtype: %d\n", admin->vtype);
+	out->prf(out->dst, "vinst: %d\n", admin->vinst);
+	out->prf(out->dst, "ingress: %d\n", admin->ingress);
+	out->prf(out->dst, "first_cid: %d\n", admin->first_cid);
+	out->prf(out->dst, "last_cid: %d\n", admin->last_cid);
+	out->prf(out->dst, "lookups: %d\n", admin->lookups);
+	out->prf(out->dst, "first_valid_addr: %d\n", admin->first_valid_addr);
+	out->prf(out->dst, "last_valid_addr: %d\n", admin->last_valid_addr);
+	out->prf(out->dst, "last_used_addr: %d\n", admin->last_used_addr);
+}
+
+static int vcap_show_admin(struct vcap_control *vctrl,
+			   struct vcap_admin *admin,
+			   struct vcap_output_print *out)
+{
+	struct vcap_rule_internal *elem;
+	struct vcap_rule *vrule;
+	int ret = 0;
+
+	vcap_show_admin_info(vctrl, admin, out);
+	list_for_each_entry(elem, &admin->rules, list) {
+		vrule = vcap_decode_rule(elem);
+		if (IS_ERR_OR_NULL(vrule)) {
+			ret = PTR_ERR(vrule);
+			break;
+		}
+
+		out->prf(out->dst, "\n");
+		vcap_show_admin_rule(vctrl, admin, out, to_intrule(vrule));
+		vcap_free_rule(vrule);
+	}
+	return ret;
+}
+
+static int vcap_show_admin_raw(struct vcap_control *vctrl,
+			       struct vcap_admin *admin,
+			       struct vcap_output_print *out)
+{
+	enum vcap_keyfield_set keysets[10];
+	enum vcap_type vt = admin->vtype;
+	struct vcap_keyset_list kslist;
+	struct vcap_rule_internal *ri;
+	const struct vcap_set *info;
+	int addr, idx;
+	int ret;
+
+	if (list_empty(&admin->rules))
+		return 0;
+
+	ret = vcap_api_check(vctrl);
+	if (ret)
+		return ret;
+
+	ri = list_first_entry(&admin->rules, struct vcap_rule_internal, list);
+
+	/* Go from higher to lower addresses searching for a keyset */
+	kslist.keysets = keysets;
+	kslist.max = ARRAY_SIZE(keysets);
+	for (addr = admin->last_valid_addr; addr >= admin->first_valid_addr;
+	     --addr) {
+		kslist.cnt = 0;
+		ret = vcap_addr_keysets(vctrl, ri->ndev, admin, addr, &kslist);
+		if (ret < 0)
+			continue;
+		info = vcap_keyfieldset(vctrl, vt, kslist.keysets[0]);
+		if (!info)
+			continue;
+		if (addr % info->sw_per_item) {
+			pr_info("addr: %d X%d error rule, keyset: %s\n",
+				addr,
+				info->sw_per_item,
+				vcap_keyset_name(vctrl, kslist.keysets[0]));
+		} else {
+			out->prf(out->dst, "  addr: %d, X%d rule, keysets:",
+				 addr,
+				 info->sw_per_item);
+			for (idx = 0; idx < kslist.cnt; ++idx)
+				out->prf(out->dst, " %s",
+					 vcap_keyset_name(vctrl,
+							  kslist.keysets[idx]));
+			out->prf(out->dst, "\n");
+		}
+	}
+	return 0;
+}
+
+/* Show the port configuration and status */
+static int vcap_port_debugfs_show(struct seq_file *m, void *unused)
+{
+	struct vcap_port_debugfs_info *info = m->private;
+	struct vcap_admin *admin;
+	struct vcap_output_print out = {
+		.prf = (void *)seq_printf,
+		.dst = m,
+	};
+
+	list_for_each_entry(admin, &info->vctrl->list, list) {
+		if (admin->vinst)
+			continue;
+		info->vctrl->ops->port_info(info->ndev, admin, &out);
+	}
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(vcap_port_debugfs);
+
+void vcap_port_debugfs(struct device *dev, struct dentry *parent,
+		       struct vcap_control *vctrl,
+		       struct net_device *ndev)
+{
+	struct vcap_port_debugfs_info *info;
+
+	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return;
+
+	info->vctrl = vctrl;
+	info->ndev = ndev;
+	debugfs_create_file(netdev_name(ndev), 0444, parent, info,
+			    &vcap_port_debugfs_fops);
+}
+EXPORT_SYMBOL_GPL(vcap_port_debugfs);
+
+/* Show the full VCAP instance data (rules with all fields) */
+static int vcap_debugfs_show(struct seq_file *m, void *unused)
+{
+	struct vcap_admin_debugfs_info *info = m->private;
+	struct vcap_output_print out = {
+		.prf = (void *)seq_printf,
+		.dst = m,
+	};
+	int ret;
+
+	mutex_lock(&info->admin->lock);
+	ret = vcap_show_admin(info->vctrl, info->admin, &out);
+	mutex_unlock(&info->admin->lock);
+	return ret;
+}
+DEFINE_SHOW_ATTRIBUTE(vcap_debugfs);
+
+/* Show the raw VCAP instance data (rules with address info) */
+static int vcap_raw_debugfs_show(struct seq_file *m, void *unused)
+{
+	struct vcap_admin_debugfs_info *info = m->private;
+	struct vcap_output_print out = {
+		.prf = (void *)seq_printf,
+		.dst = m,
+	};
+	int ret;
+
+	mutex_lock(&info->admin->lock);
+	ret = vcap_show_admin_raw(info->vctrl, info->admin, &out);
+	mutex_unlock(&info->admin->lock);
+	return ret;
+}
+DEFINE_SHOW_ATTRIBUTE(vcap_raw_debugfs);
+
+struct dentry *vcap_debugfs(struct device *dev, struct dentry *parent,
+			    struct vcap_control *vctrl)
+{
+	struct vcap_admin_debugfs_info *info;
+	struct vcap_admin *admin;
+	struct dentry *dir;
+	char name[50];
+
+	dir = debugfs_create_dir("vcaps", parent);
+	if (PTR_ERR_OR_ZERO(dir))
+		return NULL;
+	list_for_each_entry(admin, &vctrl->list, list) {
+		sprintf(name, "raw_%s_%d", vctrl->vcaps[admin->vtype].name,
+			admin->vinst);
+		info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+		if (!info)
+			return NULL;
+		info->vctrl = vctrl;
+		info->admin = admin;
+		debugfs_create_file(name, 0444, dir, info,
+				    &vcap_raw_debugfs_fops);
+		sprintf(name, "%s_%d", vctrl->vcaps[admin->vtype].name,
+			admin->vinst);
+		debugfs_create_file(name, 0444, dir, info, &vcap_debugfs_fops);
+	}
+	return dir;
+}
+EXPORT_SYMBOL_GPL(vcap_debugfs);
+
+#ifdef CONFIG_VCAP_KUNIT_TEST
+#include "vcap_api_debugfs_kunit.c"
+#endif