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, 324 insertions, 0 deletions

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_debugfs.c b/drivers/net/ethernet/huawei/hinic/hinic_debugfs.c
new file mode 100644
index 000000000..061952c6c
--- /dev/null
+++ b/drivers/net/ethernet/huawei/hinic/hinic_debugfs.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Huawei HiNIC PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ */
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+
+#include "hinic_debugfs.h"
+
+static struct dentry *hinic_dbgfs_root;
+
+enum sq_dbg_info {
+	GLB_SQ_ID,
+	SQ_PI,
+	SQ_CI,
+	SQ_FI,
+	SQ_MSIX_ENTRY,
+};
+
+static char *sq_fields[] = {"glb_sq_id", "sq_pi", "sq_ci", "sq_fi", "sq_msix_entry"};
+
+static u64 hinic_dbg_get_sq_info(struct hinic_dev *nic_dev, struct hinic_sq *sq, int idx)
+{
+	struct hinic_wq *wq = sq->wq;
+
+	switch (idx) {
+	case GLB_SQ_ID:
+		return nic_dev->hwdev->func_to_io.global_qpn + sq->qid;
+	case SQ_PI:
+		return atomic_read(&wq->prod_idx) & wq->mask;
+	case SQ_CI:
+		return atomic_read(&wq->cons_idx) & wq->mask;
+	case SQ_FI:
+		return be16_to_cpu(*(__be16 *)(sq->hw_ci_addr)) & wq->mask;
+	case SQ_MSIX_ENTRY:
+		return sq->msix_entry;
+	}
+
+	return 0;
+}
+
+enum rq_dbg_info {
+	GLB_RQ_ID,
+	RQ_HW_PI,
+	RQ_SW_CI,
+	RQ_SW_PI,
+	RQ_MSIX_ENTRY,
+};
+
+static char *rq_fields[] = {"glb_rq_id", "rq_hw_pi", "rq_sw_ci", "rq_sw_pi", "rq_msix_entry"};
+
+static u64 hinic_dbg_get_rq_info(struct hinic_dev *nic_dev, struct hinic_rq *rq, int idx)
+{
+	struct hinic_wq *wq = rq->wq;
+
+	switch (idx) {
+	case GLB_RQ_ID:
+		return nic_dev->hwdev->func_to_io.global_qpn + rq->qid;
+	case RQ_HW_PI:
+		return be16_to_cpu(*(__be16 *)(rq->pi_virt_addr)) & wq->mask;
+	case RQ_SW_CI:
+		return atomic_read(&wq->cons_idx) & wq->mask;
+	case RQ_SW_PI:
+		return atomic_read(&wq->prod_idx) & wq->mask;
+	case RQ_MSIX_ENTRY:
+		return rq->msix_entry;
+	}
+
+	return 0;
+}
+
+enum func_tbl_info {
+	VALID,
+	RX_MODE,
+	MTU,
+	RQ_DEPTH,
+	QUEUE_NUM,
+};
+
+static char *func_table_fields[] = {"valid", "rx_mode", "mtu", "rq_depth", "cfg_q_num"};
+
+static int hinic_dbg_get_func_table(struct hinic_dev *nic_dev, int idx)
+{
+	struct tag_sml_funcfg_tbl *funcfg_table_elem;
+	struct hinic_cmd_lt_rd *read_data;
+	u16 out_size = sizeof(*read_data);
+	int ret = ~0;
+	int err;
+
+	read_data = kzalloc(sizeof(*read_data), GFP_KERNEL);
+	if (!read_data)
+		return ~0;
+
+	read_data->node = TBL_ID_FUNC_CFG_SM_NODE;
+	read_data->inst = TBL_ID_FUNC_CFG_SM_INST;
+	read_data->entry_size = HINIC_FUNCTION_CONFIGURE_TABLE_SIZE;
+	read_data->lt_index = HINIC_HWIF_FUNC_IDX(nic_dev->hwdev->hwif);
+	read_data->len = HINIC_FUNCTION_CONFIGURE_TABLE_SIZE;
+
+	err = hinic_port_msg_cmd(nic_dev->hwdev, HINIC_PORT_CMD_RD_LINE_TBL, read_data,
+				 sizeof(*read_data), read_data, &out_size);
+	if (err || out_size != sizeof(*read_data) || read_data->status) {
+		netif_err(nic_dev, drv, nic_dev->netdev,
+			  "Failed to get func table, err: %d, status: 0x%x, out size: 0x%x\n",
+			  err, read_data->status, out_size);
+		kfree(read_data);
+		return ~0;
+	}
+
+	funcfg_table_elem = (struct tag_sml_funcfg_tbl *)read_data->data;
+
+	switch (idx) {
+	case VALID:
+		ret = funcfg_table_elem->dw0.bs.valid;
+		break;
+	case RX_MODE:
+		ret = funcfg_table_elem->dw0.bs.nic_rx_mode;
+		break;
+	case MTU:
+		ret = funcfg_table_elem->dw1.bs.mtu;
+		break;
+	case RQ_DEPTH:
+		ret = funcfg_table_elem->dw13.bs.cfg_rq_depth;
+		break;
+	case QUEUE_NUM:
+		ret = funcfg_table_elem->dw13.bs.cfg_q_num;
+		break;
+	}
+
+	kfree(read_data);
+
+	return ret;
+}
+
+static ssize_t hinic_dbg_cmd_read(struct file *filp, char __user *buffer, size_t count,
+				  loff_t *ppos)
+{
+	struct hinic_debug_priv *dbg;
+	char ret_buf[20];
+	int *desc;
+	u64 out;
+	int ret;
+
+	desc = filp->private_data;
+	dbg = container_of(desc, struct hinic_debug_priv, field_id[*desc]);
+
+	switch (dbg->type) {
+	case HINIC_DBG_SQ_INFO:
+		out = hinic_dbg_get_sq_info(dbg->dev, dbg->object, *desc);
+		break;
+
+	case HINIC_DBG_RQ_INFO:
+		out = hinic_dbg_get_rq_info(dbg->dev, dbg->object, *desc);
+		break;
+
+	case HINIC_DBG_FUNC_TABLE:
+		out = hinic_dbg_get_func_table(dbg->dev, *desc);
+		break;
+
+	default:
+		netif_warn(dbg->dev, drv, dbg->dev->netdev, "Invalid hinic debug cmd: %d\n",
+			   dbg->type);
+		return -EINVAL;
+	}
+
+	ret = snprintf(ret_buf, sizeof(ret_buf), "0x%llx\n", out);
+
+	return simple_read_from_buffer(buffer, count, ppos, ret_buf, ret);
+}
+
+static const struct file_operations hinic_dbg_cmd_fops = {
+	.owner = THIS_MODULE,
+	.open  = simple_open,
+	.read  = hinic_dbg_cmd_read,
+};
+
+static int create_dbg_files(struct hinic_dev *dev, enum hinic_dbg_type type, void *data,
+			    struct dentry *root, struct hinic_debug_priv **dbg, char **field,
+			    int nfile)
+{
+	struct hinic_debug_priv *tmp;
+	int i;
+
+	tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+	if (!tmp)
+		return -ENOMEM;
+
+	tmp->dev = dev;
+	tmp->object = data;
+	tmp->type = type;
+	tmp->root = root;
+
+	for (i = 0; i < nfile; i++) {
+		tmp->field_id[i] = i;
+		debugfs_create_file(field[i], 0400, root, &tmp->field_id[i], &hinic_dbg_cmd_fops);
+	}
+
+	*dbg = tmp;
+
+	return 0;
+}
+
+static void rem_dbg_files(struct hinic_debug_priv *dbg)
+{
+	if (dbg->type != HINIC_DBG_FUNC_TABLE)
+		debugfs_remove_recursive(dbg->root);
+
+	kfree(dbg);
+}
+
+int hinic_sq_debug_add(struct hinic_dev *dev, u16 sq_id)
+{
+	struct hinic_sq *sq;
+	struct dentry *root;
+	char sub_dir[16];
+
+	sq = dev->txqs[sq_id].sq;
+
+	sprintf(sub_dir, "0x%x", sq_id);
+
+	root = debugfs_create_dir(sub_dir, dev->sq_dbgfs);
+
+	return create_dbg_files(dev, HINIC_DBG_SQ_INFO, sq, root, &sq->dbg, sq_fields,
+				ARRAY_SIZE(sq_fields));
+}
+
+void hinic_sq_debug_rem(struct hinic_sq *sq)
+{
+	if (sq->dbg)
+		rem_dbg_files(sq->dbg);
+}
+
+int hinic_rq_debug_add(struct hinic_dev *dev, u16 rq_id)
+{
+	struct hinic_rq *rq;
+	struct dentry *root;
+	char sub_dir[16];
+
+	rq = dev->rxqs[rq_id].rq;
+
+	sprintf(sub_dir, "0x%x", rq_id);
+
+	root = debugfs_create_dir(sub_dir, dev->rq_dbgfs);
+
+	return create_dbg_files(dev, HINIC_DBG_RQ_INFO, rq, root, &rq->dbg, rq_fields,
+				ARRAY_SIZE(rq_fields));
+}
+
+void hinic_rq_debug_rem(struct hinic_rq *rq)
+{
+	if (rq->dbg)
+		rem_dbg_files(rq->dbg);
+}
+
+int hinic_func_table_debug_add(struct hinic_dev *dev)
+{
+	if (HINIC_IS_VF(dev->hwdev->hwif))
+		return 0;
+
+	return create_dbg_files(dev, HINIC_DBG_FUNC_TABLE, dev, dev->func_tbl_dbgfs, &dev->dbg,
+				func_table_fields, ARRAY_SIZE(func_table_fields));
+}
+
+void hinic_func_table_debug_rem(struct hinic_dev *dev)
+{
+	if (!HINIC_IS_VF(dev->hwdev->hwif) && dev->dbg)
+		rem_dbg_files(dev->dbg);
+}
+
+void hinic_sq_dbgfs_init(struct hinic_dev *nic_dev)
+{
+	nic_dev->sq_dbgfs = debugfs_create_dir("SQs", nic_dev->dbgfs_root);
+}
+
+void hinic_sq_dbgfs_uninit(struct hinic_dev *nic_dev)
+{
+	debugfs_remove_recursive(nic_dev->sq_dbgfs);
+}
+
+void hinic_rq_dbgfs_init(struct hinic_dev *nic_dev)
+{
+	nic_dev->rq_dbgfs = debugfs_create_dir("RQs", nic_dev->dbgfs_root);
+}
+
+void hinic_rq_dbgfs_uninit(struct hinic_dev *nic_dev)
+{
+	debugfs_remove_recursive(nic_dev->rq_dbgfs);
+}
+
+void hinic_func_tbl_dbgfs_init(struct hinic_dev *nic_dev)
+{
+	if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
+		nic_dev->func_tbl_dbgfs = debugfs_create_dir("func_table", nic_dev->dbgfs_root);
+}
+
+void hinic_func_tbl_dbgfs_uninit(struct hinic_dev *nic_dev)
+{
+	if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
+		debugfs_remove_recursive(nic_dev->func_tbl_dbgfs);
+}
+
+void hinic_dbg_init(struct hinic_dev *nic_dev)
+{
+	nic_dev->dbgfs_root = debugfs_create_dir(pci_name(nic_dev->hwdev->hwif->pdev),
+						 hinic_dbgfs_root);
+}
+
+void hinic_dbg_uninit(struct hinic_dev *nic_dev)
+{
+	debugfs_remove_recursive(nic_dev->dbgfs_root);
+	nic_dev->dbgfs_root = NULL;
+}
+
+void hinic_dbg_register_debugfs(const char *debugfs_dir_name)
+{
+	hinic_dbgfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
+}
+
+void hinic_dbg_unregister_debugfs(void)
+{
+	debugfs_remove_recursive(hinic_dbgfs_root);
+	hinic_dbgfs_root = NULL;
+}