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, 322 insertions, 0 deletions

diff --git a/drivers/net/wwan/iosm/iosm_ipc_devlink.c b/drivers/net/wwan/iosm/iosm_ipc_devlink.c
new file mode 100644
index 000000000..2fe724d62
--- /dev/null
+++ b/drivers/net/wwan/iosm/iosm_ipc_devlink.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2021 Intel Corporation.
+ */
+#include <linux/vmalloc.h>
+
+#include "iosm_ipc_chnl_cfg.h"
+#include "iosm_ipc_coredump.h"
+#include "iosm_ipc_devlink.h"
+#include "iosm_ipc_flash.h"
+
+/* Coredump list */
+static struct iosm_coredump_file_info list[IOSM_NOF_CD_REGION] = {
+	{"report.json", REPORT_JSON_SIZE,},
+	{"coredump.fcd", COREDUMP_FCD_SIZE,},
+	{"cdd.log", CDD_LOG_SIZE,},
+	{"eeprom.bin", EEPROM_BIN_SIZE,},
+	{"bootcore_trace.bin", BOOTCORE_TRC_BIN_SIZE,},
+	{"bootcore_prev_trace.bin", BOOTCORE_PREV_TRC_BIN_SIZE,},
+};
+
+/* Get the param values for the specific param ID's */
+static int ipc_devlink_get_param(struct devlink *dl, u32 id,
+				 struct devlink_param_gset_ctx *ctx)
+{
+	struct iosm_devlink *ipc_devlink = devlink_priv(dl);
+
+	if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH)
+		ctx->val.vu8 = ipc_devlink->param.erase_full_flash;
+
+	return 0;
+}
+
+/* Set the param values for the specific param ID's */
+static int ipc_devlink_set_param(struct devlink *dl, u32 id,
+				 struct devlink_param_gset_ctx *ctx)
+{
+	struct iosm_devlink *ipc_devlink = devlink_priv(dl);
+
+	if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH)
+		ipc_devlink->param.erase_full_flash = ctx->val.vu8;
+
+	return 0;
+}
+
+/* Devlink param structure array */
+static const struct devlink_param iosm_devlink_params[] = {
+	DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH,
+			     "erase_full_flash", DEVLINK_PARAM_TYPE_BOOL,
+			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			     ipc_devlink_get_param, ipc_devlink_set_param,
+			     NULL),
+};
+
+/* Get devlink flash component type */
+static enum iosm_flash_comp_type
+ipc_devlink_get_flash_comp_type(const char comp_str[], u32 len)
+{
+	enum iosm_flash_comp_type fls_type;
+
+	if (!strncmp("PSI", comp_str, len))
+		fls_type = FLASH_COMP_TYPE_PSI;
+	else if (!strncmp("EBL", comp_str, len))
+		fls_type = FLASH_COMP_TYPE_EBL;
+	else if (!strncmp("FLS", comp_str, len))
+		fls_type = FLASH_COMP_TYPE_FLS;
+	else
+		fls_type = FLASH_COMP_TYPE_INVAL;
+
+	return fls_type;
+}
+
+/* Function triggered on devlink flash command
+ * Flash update function which calls multiple functions based on
+ * component type specified in the flash command
+ */
+static int ipc_devlink_flash_update(struct devlink *devlink,
+				    struct devlink_flash_update_params *params,
+				    struct netlink_ext_ack *extack)
+{
+	struct iosm_devlink *ipc_devlink = devlink_priv(devlink);
+	enum iosm_flash_comp_type fls_type;
+	struct iosm_devlink_image *header;
+	int rc = -EINVAL;
+	u8 *mdm_rsp;
+
+	header = (struct iosm_devlink_image *)params->fw->data;
+
+	if (!header || params->fw->size <= IOSM_DEVLINK_HDR_SIZE ||
+	    (memcmp(header->magic_header, IOSM_DEVLINK_MAGIC_HEADER,
+	     IOSM_DEVLINK_MAGIC_HEADER_LEN) != 0))
+		return -EINVAL;
+
+	mdm_rsp = kzalloc(IOSM_EBL_DW_PACK_SIZE, GFP_KERNEL);
+	if (!mdm_rsp)
+		return -ENOMEM;
+
+	fls_type = ipc_devlink_get_flash_comp_type(header->image_type,
+						   IOSM_DEVLINK_MAX_IMG_LEN);
+
+	switch (fls_type) {
+	case FLASH_COMP_TYPE_PSI:
+		rc = ipc_flash_boot_psi(ipc_devlink, params->fw);
+		break;
+	case FLASH_COMP_TYPE_EBL:
+		rc = ipc_flash_boot_ebl(ipc_devlink, params->fw);
+		if (rc)
+			break;
+		rc = ipc_flash_boot_set_capabilities(ipc_devlink, mdm_rsp);
+		if (rc)
+			break;
+		rc = ipc_flash_read_swid(ipc_devlink, mdm_rsp);
+		break;
+	case FLASH_COMP_TYPE_FLS:
+		rc = ipc_flash_send_fls(ipc_devlink, params->fw, mdm_rsp);
+		break;
+	default:
+		devlink_flash_update_status_notify(devlink, "Invalid component",
+						   NULL, 0, 0);
+		break;
+	}
+
+	if (!rc)
+		devlink_flash_update_status_notify(devlink, "Flashing success",
+						   header->image_type, 0, 0);
+	else
+		devlink_flash_update_status_notify(devlink, "Flashing failed",
+						   header->image_type, 0, 0);
+
+	kfree(mdm_rsp);
+	return rc;
+}
+
+/* Call back function for devlink ops */
+static const struct devlink_ops devlink_flash_ops = {
+	.flash_update = ipc_devlink_flash_update,
+};
+
+/**
+ * ipc_devlink_send_cmd - Send command to Modem
+ * @ipc_devlink: Pointer to struct iosm_devlink
+ * @cmd:         Command to be sent to modem
+ * @entry:       Command entry number
+ *
+ * Returns:      0 on success and failure value on error
+ */
+int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry)
+{
+	struct iosm_rpsi_cmd rpsi_cmd;
+
+	rpsi_cmd.param.dword = cpu_to_le32(entry);
+	rpsi_cmd.cmd = cpu_to_le16(cmd);
+	rpsi_cmd.crc = rpsi_cmd.param.word[0] ^ rpsi_cmd.param.word[1] ^
+		       rpsi_cmd.cmd;
+
+	return ipc_imem_sys_devlink_write(ipc_devlink, (u8 *)&rpsi_cmd,
+					  sizeof(rpsi_cmd));
+}
+
+/* Function to create snapshot */
+static int ipc_devlink_coredump_snapshot(struct devlink *dl,
+					 const struct devlink_region_ops *ops,
+					 struct netlink_ext_ack *extack,
+					 u8 **data)
+{
+	struct iosm_devlink *ipc_devlink = devlink_priv(dl);
+	struct iosm_coredump_file_info *cd_list = ops->priv;
+	u32 region_size;
+	int rc;
+
+	dev_dbg(ipc_devlink->dev, "Region:%s, ID:%d", ops->name,
+		cd_list->entry);
+	region_size = cd_list->default_size;
+	rc = ipc_coredump_collect(ipc_devlink, data, cd_list->entry,
+				  region_size);
+	if (rc) {
+		dev_err(ipc_devlink->dev, "Fail to create snapshot,err %d", rc);
+		goto coredump_collect_err;
+	}
+
+	/* Send coredump end cmd indicating end of coredump collection */
+	if (cd_list->entry == (IOSM_NOF_CD_REGION - 1))
+		ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
+
+	return 0;
+
+coredump_collect_err:
+	ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
+	return rc;
+}
+
+/* To create regions for coredump files */
+static int ipc_devlink_create_region(struct iosm_devlink *devlink)
+{
+	struct devlink_region_ops *mdm_coredump;
+	int rc = 0;
+	int i;
+
+	mdm_coredump = devlink->iosm_devlink_mdm_coredump;
+	for (i = 0; i < IOSM_NOF_CD_REGION; i++) {
+		mdm_coredump[i].name = list[i].filename;
+		mdm_coredump[i].snapshot = ipc_devlink_coredump_snapshot;
+		mdm_coredump[i].destructor = vfree;
+		devlink->cd_regions[i] =
+			devlink_region_create(devlink->devlink_ctx,
+					      &mdm_coredump[i], MAX_SNAPSHOTS,
+					      list[i].default_size);
+
+		if (IS_ERR(devlink->cd_regions[i])) {
+			rc = PTR_ERR(devlink->cd_regions[i]);
+			dev_err(devlink->dev, "Devlink region fail,err %d", rc);
+			/* Delete previously created regions */
+			for ( ; i >= 0; i--)
+				devlink_region_destroy(devlink->cd_regions[i]);
+			goto region_create_fail;
+		}
+		list[i].entry = i;
+		mdm_coredump[i].priv = list + i;
+	}
+region_create_fail:
+	return rc;
+}
+
+/* To Destroy devlink regions */
+static void ipc_devlink_destroy_region(struct iosm_devlink *ipc_devlink)
+{
+	u8 i;
+
+	for (i = 0; i < IOSM_NOF_CD_REGION; i++)
+		devlink_region_destroy(ipc_devlink->cd_regions[i]);
+}
+
+/**
+ * ipc_devlink_init - Initialize/register devlink to IOSM driver
+ * @ipc_imem:   Pointer to struct iosm_imem
+ *
+ * Returns:     Pointer to iosm_devlink on success and NULL on failure
+ */
+struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem)
+{
+	struct ipc_chnl_cfg chnl_cfg_flash = { 0 };
+	struct iosm_devlink *ipc_devlink;
+	struct devlink *devlink_ctx;
+	int rc;
+
+	devlink_ctx = devlink_alloc(&devlink_flash_ops,
+				    sizeof(struct iosm_devlink),
+				    ipc_imem->dev);
+	if (!devlink_ctx) {
+		dev_err(ipc_imem->dev, "devlink_alloc failed");
+		goto devlink_alloc_fail;
+	}
+
+	ipc_devlink = devlink_priv(devlink_ctx);
+	ipc_devlink->devlink_ctx = devlink_ctx;
+	ipc_devlink->pcie = ipc_imem->pcie;
+	ipc_devlink->dev = ipc_imem->dev;
+
+	rc = devlink_params_register(devlink_ctx, iosm_devlink_params,
+				     ARRAY_SIZE(iosm_devlink_params));
+	if (rc) {
+		dev_err(ipc_devlink->dev,
+			"devlink_params_register failed. rc %d", rc);
+		goto param_reg_fail;
+	}
+
+	ipc_devlink->cd_file_info = list;
+
+	rc = ipc_devlink_create_region(ipc_devlink);
+	if (rc) {
+		dev_err(ipc_devlink->dev, "Devlink Region create failed, rc %d",
+			rc);
+		goto region_create_fail;
+	}
+
+	if (ipc_chnl_cfg_get(&chnl_cfg_flash, IPC_MEM_CTRL_CHL_ID_7) < 0)
+		goto chnl_get_fail;
+
+	ipc_imem_channel_init(ipc_imem, IPC_CTYPE_CTRL,
+			      chnl_cfg_flash, IRQ_MOD_OFF);
+
+	init_completion(&ipc_devlink->devlink_sio.read_sem);
+	skb_queue_head_init(&ipc_devlink->devlink_sio.rx_list);
+
+	devlink_register(devlink_ctx);
+	dev_dbg(ipc_devlink->dev, "iosm devlink register success");
+
+	return ipc_devlink;
+
+chnl_get_fail:
+	ipc_devlink_destroy_region(ipc_devlink);
+region_create_fail:
+	devlink_params_unregister(devlink_ctx, iosm_devlink_params,
+				  ARRAY_SIZE(iosm_devlink_params));
+param_reg_fail:
+	devlink_free(devlink_ctx);
+devlink_alloc_fail:
+	return NULL;
+}
+
+/**
+ * ipc_devlink_deinit - To unintialize the devlink from IOSM driver.
+ * @ipc_devlink:        Devlink instance
+ */
+void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink)
+{
+	struct devlink *devlink_ctx = ipc_devlink->devlink_ctx;
+
+	devlink_unregister(devlink_ctx);
+	ipc_devlink_destroy_region(ipc_devlink);
+	devlink_params_unregister(devlink_ctx, iosm_devlink_params,
+				  ARRAY_SIZE(iosm_devlink_params));
+	if (ipc_devlink->devlink_sio.devlink_read_pend) {
+		complete(&ipc_devlink->devlink_sio.read_sem);
+		complete(&ipc_devlink->devlink_sio.channel->ul_sem);
+	}
+	if (!ipc_devlink->devlink_sio.devlink_read_pend)
+		skb_queue_purge(&ipc_devlink->devlink_sio.rx_list);
+
+	ipc_imem_sys_devlink_close(ipc_devlink);
+	devlink_free(devlink_ctx);
+}