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, 596 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
new file mode 100644
index 000000000..6d18a1fd6
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
@@ -0,0 +1,596 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2012-2014, 2018-2019, 2021 Intel Corporation
+ * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
+ * Copyright (C) 2016-2017 Intel Deutschland GmbH
+ */
+#include <linux/firmware.h>
+#include <linux/rtnetlink.h>
+#include "iwl-trans.h"
+#include "iwl-csr.h"
+#include "mvm.h"
+#include "iwl-eeprom-parse.h"
+#include "iwl-eeprom-read.h"
+#include "iwl-nvm-parse.h"
+#include "iwl-prph.h"
+#include "fw/acpi.h"
+
+/* Default NVM size to read */
+#define IWL_NVM_DEFAULT_CHUNK_SIZE (2 * 1024)
+
+#define NVM_WRITE_OPCODE 1
+#define NVM_READ_OPCODE 0
+
+/* load nvm chunk response */
+enum {
+	READ_NVM_CHUNK_SUCCEED = 0,
+	READ_NVM_CHUNK_NOT_VALID_ADDRESS = 1
+};
+
+/*
+ * prepare the NVM host command w/ the pointers to the nvm buffer
+ * and send it to fw
+ */
+static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section,
+			       u16 offset, u16 length, const u8 *data)
+{
+	struct iwl_nvm_access_cmd nvm_access_cmd = {
+		.offset = cpu_to_le16(offset),
+		.length = cpu_to_le16(length),
+		.type = cpu_to_le16(section),
+		.op_code = NVM_WRITE_OPCODE,
+	};
+	struct iwl_host_cmd cmd = {
+		.id = NVM_ACCESS_CMD,
+		.len = { sizeof(struct iwl_nvm_access_cmd), length },
+		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
+		.data = { &nvm_access_cmd, data },
+		/* data may come from vmalloc, so use _DUP */
+		.dataflags = { 0, IWL_HCMD_DFL_DUP },
+	};
+	struct iwl_rx_packet *pkt;
+	struct iwl_nvm_access_resp *nvm_resp;
+	int ret;
+
+	ret = iwl_mvm_send_cmd(mvm, &cmd);
+	if (ret)
+		return ret;
+
+	pkt = cmd.resp_pkt;
+	/* Extract & check NVM write response */
+	nvm_resp = (void *)pkt->data;
+	if (le16_to_cpu(nvm_resp->status) != READ_NVM_CHUNK_SUCCEED) {
+		IWL_ERR(mvm,
+			"NVM access write command failed for section %u (status = 0x%x)\n",
+			section, le16_to_cpu(nvm_resp->status));
+		ret = -EIO;
+	}
+
+	iwl_free_resp(&cmd);
+	return ret;
+}
+
+static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
+			      u16 offset, u16 length, u8 *data)
+{
+	struct iwl_nvm_access_cmd nvm_access_cmd = {
+		.offset = cpu_to_le16(offset),
+		.length = cpu_to_le16(length),
+		.type = cpu_to_le16(section),
+		.op_code = NVM_READ_OPCODE,
+	};
+	struct iwl_nvm_access_resp *nvm_resp;
+	struct iwl_rx_packet *pkt;
+	struct iwl_host_cmd cmd = {
+		.id = NVM_ACCESS_CMD,
+		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
+		.data = { &nvm_access_cmd, },
+	};
+	int ret, bytes_read, offset_read;
+	u8 *resp_data;
+
+	cmd.len[0] = sizeof(struct iwl_nvm_access_cmd);
+
+	ret = iwl_mvm_send_cmd(mvm, &cmd);
+	if (ret)
+		return ret;
+
+	pkt = cmd.resp_pkt;
+
+	/* Extract NVM response */
+	nvm_resp = (void *)pkt->data;
+	ret = le16_to_cpu(nvm_resp->status);
+	bytes_read = le16_to_cpu(nvm_resp->length);
+	offset_read = le16_to_cpu(nvm_resp->offset);
+	resp_data = nvm_resp->data;
+	if (ret) {
+		if ((offset != 0) &&
+		    (ret == READ_NVM_CHUNK_NOT_VALID_ADDRESS)) {
+			/*
+			 * meaning of NOT_VALID_ADDRESS:
+			 * driver try to read chunk from address that is
+			 * multiple of 2K and got an error since addr is empty.
+			 * meaning of (offset != 0): driver already
+			 * read valid data from another chunk so this case
+			 * is not an error.
+			 */
+			IWL_DEBUG_EEPROM(mvm->trans->dev,
+					 "NVM access command failed on offset 0x%x since that section size is multiple 2K\n",
+					 offset);
+			ret = 0;
+		} else {
+			IWL_DEBUG_EEPROM(mvm->trans->dev,
+					 "NVM access command failed with status %d (device: %s)\n",
+					 ret, mvm->trans->name);
+			ret = -ENODATA;
+		}
+		goto exit;
+	}
+
+	if (offset_read != offset) {
+		IWL_ERR(mvm, "NVM ACCESS response with invalid offset %d\n",
+			offset_read);
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	/* Write data to NVM */
+	memcpy(data + offset, resp_data, bytes_read);
+	ret = bytes_read;
+
+exit:
+	iwl_free_resp(&cmd);
+	return ret;
+}
+
+static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section,
+				 const u8 *data, u16 length)
+{
+	int offset = 0;
+
+	/* copy data in chunks of 2k (and remainder if any) */
+
+	while (offset < length) {
+		int chunk_size, ret;
+
+		chunk_size = min(IWL_NVM_DEFAULT_CHUNK_SIZE,
+				 length - offset);
+
+		ret = iwl_nvm_write_chunk(mvm, section, offset,
+					  chunk_size, data + offset);
+		if (ret < 0)
+			return ret;
+
+		offset += chunk_size;
+	}
+
+	return 0;
+}
+
+/*
+ * Reads an NVM section completely.
+ * NICs prior to 7000 family doesn't have a real NVM, but just read
+ * section 0 which is the EEPROM. Because the EEPROM reading is unlimited
+ * by uCode, we need to manually check in this case that we don't
+ * overflow and try to read more than the EEPROM size.
+ * For 7000 family NICs, we supply the maximal size we can read, and
+ * the uCode fills the response with as much data as we can,
+ * without overflowing, so no check is needed.
+ */
+static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section,
+				u8 *data, u32 size_read)
+{
+	u16 length, offset = 0;
+	int ret;
+
+	/* Set nvm section read length */
+	length = IWL_NVM_DEFAULT_CHUNK_SIZE;
+
+	ret = length;
+
+	/* Read the NVM until exhausted (reading less than requested) */
+	while (ret == length) {
+		/* Check no memory assumptions fail and cause an overflow */
+		if ((size_read + offset + length) >
+		    mvm->trans->trans_cfg->base_params->eeprom_size) {
+			IWL_ERR(mvm, "EEPROM size is too small for NVM\n");
+			return -ENOBUFS;
+		}
+
+		ret = iwl_nvm_read_chunk(mvm, section, offset, length, data);
+		if (ret < 0) {
+			IWL_DEBUG_EEPROM(mvm->trans->dev,
+					 "Cannot read NVM from section %d offset %d, length %d\n",
+					 section, offset, length);
+			return ret;
+		}
+		offset += ret;
+	}
+
+	iwl_nvm_fixups(mvm->trans->hw_id, section, data, offset);
+
+	IWL_DEBUG_EEPROM(mvm->trans->dev,
+			 "NVM section %d read completed\n", section);
+	return offset;
+}
+
+static struct iwl_nvm_data *
+iwl_parse_nvm_sections(struct iwl_mvm *mvm)
+{
+	struct iwl_nvm_section *sections = mvm->nvm_sections;
+	const __be16 *hw;
+	const __le16 *sw, *calib, *regulatory, *mac_override, *phy_sku;
+	int regulatory_type;
+
+	/* Checking for required sections */
+	if (mvm->trans->cfg->nvm_type == IWL_NVM) {
+		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
+		    !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
+			IWL_ERR(mvm, "Can't parse empty OTP/NVM sections\n");
+			return NULL;
+		}
+	} else {
+		if (mvm->trans->cfg->nvm_type == IWL_NVM_SDP)
+			regulatory_type = NVM_SECTION_TYPE_REGULATORY_SDP;
+		else
+			regulatory_type = NVM_SECTION_TYPE_REGULATORY;
+
+		/* SW and REGULATORY sections are mandatory */
+		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
+		    !mvm->nvm_sections[regulatory_type].data) {
+			IWL_ERR(mvm,
+				"Can't parse empty family 8000 OTP/NVM sections\n");
+			return NULL;
+		}
+		/* MAC_OVERRIDE or at least HW section must exist */
+		if (!mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data &&
+		    !mvm->nvm_sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data) {
+			IWL_ERR(mvm,
+				"Can't parse mac_address, empty sections\n");
+			return NULL;
+		}
+
+		/* PHY_SKU section is mandatory in B0 */
+		if (mvm->trans->cfg->nvm_type == IWL_NVM_EXT &&
+		    !mvm->nvm_sections[NVM_SECTION_TYPE_PHY_SKU].data) {
+			IWL_ERR(mvm,
+				"Can't parse phy_sku in B0, empty sections\n");
+			return NULL;
+		}
+	}
+
+	hw = (const __be16 *)sections[mvm->cfg->nvm_hw_section_num].data;
+	sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
+	calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
+	mac_override =
+		(const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data;
+	phy_sku = (const __le16 *)sections[NVM_SECTION_TYPE_PHY_SKU].data;
+
+	regulatory = mvm->trans->cfg->nvm_type == IWL_NVM_SDP ?
+		(const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY_SDP].data :
+		(const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
+
+	return iwl_parse_nvm_data(mvm->trans, mvm->cfg, mvm->fw, hw, sw, calib,
+				  regulatory, mac_override, phy_sku,
+				  mvm->fw->valid_tx_ant, mvm->fw->valid_rx_ant);
+}
+
+/* Loads the NVM data stored in mvm->nvm_sections into the NIC */
+int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm)
+{
+	int i, ret = 0;
+	struct iwl_nvm_section *sections = mvm->nvm_sections;
+
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "'Write to NVM\n");
+
+	for (i = 0; i < ARRAY_SIZE(mvm->nvm_sections); i++) {
+		if (!mvm->nvm_sections[i].data || !mvm->nvm_sections[i].length)
+			continue;
+		ret = iwl_nvm_write_section(mvm, i, sections[i].data,
+					    sections[i].length);
+		if (ret < 0) {
+			IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
+			break;
+		}
+	}
+	return ret;
+}
+
+int iwl_nvm_init(struct iwl_mvm *mvm)
+{
+	int ret, section;
+	u32 size_read = 0;
+	u8 *nvm_buffer, *temp;
+	const char *nvm_file_C = mvm->cfg->default_nvm_file_C_step;
+
+	if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS))
+		return -EINVAL;
+
+	/* load NVM values from nic */
+	/* Read From FW NVM */
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
+
+	nvm_buffer = kmalloc(mvm->trans->trans_cfg->base_params->eeprom_size,
+			     GFP_KERNEL);
+	if (!nvm_buffer)
+		return -ENOMEM;
+	for (section = 0; section < NVM_MAX_NUM_SECTIONS; section++) {
+		/* we override the constness for initial read */
+		ret = iwl_nvm_read_section(mvm, section, nvm_buffer,
+					   size_read);
+		if (ret == -ENODATA) {
+			ret = 0;
+			continue;
+		}
+		if (ret < 0)
+			break;
+		size_read += ret;
+		temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
+		if (!temp) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		iwl_nvm_fixups(mvm->trans->hw_id, section, temp, ret);
+
+		mvm->nvm_sections[section].data = temp;
+		mvm->nvm_sections[section].length = ret;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+		switch (section) {
+		case NVM_SECTION_TYPE_SW:
+			mvm->nvm_sw_blob.data = temp;
+			mvm->nvm_sw_blob.size  = ret;
+			break;
+		case NVM_SECTION_TYPE_CALIBRATION:
+			mvm->nvm_calib_blob.data = temp;
+			mvm->nvm_calib_blob.size  = ret;
+			break;
+		case NVM_SECTION_TYPE_PRODUCTION:
+			mvm->nvm_prod_blob.data = temp;
+			mvm->nvm_prod_blob.size  = ret;
+			break;
+		case NVM_SECTION_TYPE_PHY_SKU:
+			mvm->nvm_phy_sku_blob.data = temp;
+			mvm->nvm_phy_sku_blob.size  = ret;
+			break;
+		case NVM_SECTION_TYPE_REGULATORY_SDP:
+		case NVM_SECTION_TYPE_REGULATORY:
+			mvm->nvm_reg_blob.data = temp;
+			mvm->nvm_reg_blob.size  = ret;
+			break;
+		default:
+			if (section == mvm->cfg->nvm_hw_section_num) {
+				mvm->nvm_hw_blob.data = temp;
+				mvm->nvm_hw_blob.size = ret;
+				break;
+			}
+		}
+#endif
+	}
+	if (!size_read)
+		IWL_ERR(mvm, "OTP is blank\n");
+	kfree(nvm_buffer);
+
+	/* Only if PNVM selected in the mod param - load external NVM  */
+	if (mvm->nvm_file_name) {
+		/* read External NVM file from the mod param */
+		ret = iwl_read_external_nvm(mvm->trans, mvm->nvm_file_name,
+					    mvm->nvm_sections);
+		if (ret) {
+			mvm->nvm_file_name = nvm_file_C;
+
+			if ((ret == -EFAULT || ret == -ENOENT) &&
+			    mvm->nvm_file_name) {
+				/* in case nvm file was failed try again */
+				ret = iwl_read_external_nvm(mvm->trans,
+							    mvm->nvm_file_name,
+							    mvm->nvm_sections);
+				if (ret)
+					return ret;
+			} else {
+				return ret;
+			}
+		}
+	}
+
+	/* parse the relevant nvm sections */
+	mvm->nvm_data = iwl_parse_nvm_sections(mvm);
+	if (!mvm->nvm_data)
+		return -ENODATA;
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "nvm version = %x\n",
+			 mvm->nvm_data->nvm_version);
+
+	return ret < 0 ? ret : 0;
+}
+
+struct iwl_mcc_update_resp *
+iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2,
+		   enum iwl_mcc_source src_id)
+{
+	struct iwl_mcc_update_cmd mcc_update_cmd = {
+		.mcc = cpu_to_le16(alpha2[0] << 8 | alpha2[1]),
+		.source_id = (u8)src_id,
+	};
+	struct iwl_mcc_update_resp *resp_cp;
+	struct iwl_rx_packet *pkt;
+	struct iwl_host_cmd cmd = {
+		.id = MCC_UPDATE_CMD,
+		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
+		.data = { &mcc_update_cmd },
+	};
+
+	int ret;
+	u32 status;
+	int resp_len, n_channels;
+	u16 mcc;
+
+	if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
+		return ERR_PTR(-EOPNOTSUPP);
+
+	cmd.len[0] = sizeof(struct iwl_mcc_update_cmd);
+
+	IWL_DEBUG_LAR(mvm, "send MCC update to FW with '%c%c' src = %d\n",
+		      alpha2[0], alpha2[1], src_id);
+
+	ret = iwl_mvm_send_cmd(mvm, &cmd);
+	if (ret)
+		return ERR_PTR(ret);
+
+	pkt = cmd.resp_pkt;
+
+	/* Extract MCC response */
+	if (fw_has_capa(&mvm->fw->ucode_capa,
+			IWL_UCODE_TLV_CAPA_MCC_UPDATE_11AX_SUPPORT)) {
+		struct iwl_mcc_update_resp *mcc_resp = (void *)pkt->data;
+
+		n_channels =  __le32_to_cpu(mcc_resp->n_channels);
+		resp_len = sizeof(struct iwl_mcc_update_resp) +
+			   n_channels * sizeof(__le32);
+		resp_cp = kmemdup(mcc_resp, resp_len, GFP_KERNEL);
+		if (!resp_cp) {
+			resp_cp = ERR_PTR(-ENOMEM);
+			goto exit;
+		}
+	} else {
+		struct iwl_mcc_update_resp_v3 *mcc_resp_v3 = (void *)pkt->data;
+
+		n_channels =  __le32_to_cpu(mcc_resp_v3->n_channels);
+		resp_len = sizeof(struct iwl_mcc_update_resp) +
+			   n_channels * sizeof(__le32);
+		resp_cp = kzalloc(resp_len, GFP_KERNEL);
+		if (!resp_cp) {
+			resp_cp = ERR_PTR(-ENOMEM);
+			goto exit;
+		}
+
+		resp_cp->status = mcc_resp_v3->status;
+		resp_cp->mcc = mcc_resp_v3->mcc;
+		resp_cp->cap = cpu_to_le16(mcc_resp_v3->cap);
+		resp_cp->source_id = mcc_resp_v3->source_id;
+		resp_cp->time = mcc_resp_v3->time;
+		resp_cp->geo_info = mcc_resp_v3->geo_info;
+		resp_cp->n_channels = mcc_resp_v3->n_channels;
+		memcpy(resp_cp->channels, mcc_resp_v3->channels,
+		       n_channels * sizeof(__le32));
+	}
+
+	status = le32_to_cpu(resp_cp->status);
+
+	mcc = le16_to_cpu(resp_cp->mcc);
+
+	/* W/A for a FW/NVM issue - returns 0x00 for the world domain */
+	if (mcc == 0) {
+		mcc = 0x3030;  /* "00" - world */
+		resp_cp->mcc = cpu_to_le16(mcc);
+	}
+
+	IWL_DEBUG_LAR(mvm,
+		      "MCC response status: 0x%x. new MCC: 0x%x ('%c%c') n_chans: %d\n",
+		      status, mcc, mcc >> 8, mcc & 0xff, n_channels);
+
+exit:
+	iwl_free_resp(&cmd);
+	return resp_cp;
+}
+
+int iwl_mvm_init_mcc(struct iwl_mvm *mvm)
+{
+	bool tlv_lar;
+	bool nvm_lar;
+	int retval;
+	struct ieee80211_regdomain *regd;
+	char mcc[3];
+
+	if (mvm->cfg->nvm_type == IWL_NVM_EXT) {
+		tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
+				      IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
+		nvm_lar = mvm->nvm_data->lar_enabled;
+		if (tlv_lar != nvm_lar)
+			IWL_INFO(mvm,
+				 "Conflict between TLV & NVM regarding enabling LAR (TLV = %s NVM =%s)\n",
+				 tlv_lar ? "enabled" : "disabled",
+				 nvm_lar ? "enabled" : "disabled");
+	}
+
+	if (!iwl_mvm_is_lar_supported(mvm))
+		return 0;
+
+	/*
+	 * try to replay the last set MCC to FW. If it doesn't exist,
+	 * queue an update to cfg80211 to retrieve the default alpha2 from FW.
+	 */
+	retval = iwl_mvm_init_fw_regd(mvm);
+	if (retval != -ENOENT)
+		return retval;
+
+	/*
+	 * Driver regulatory hint for initial update, this also informs the
+	 * firmware we support wifi location updates.
+	 * Disallow scans that might crash the FW while the LAR regdomain
+	 * is not set.
+	 */
+	mvm->lar_regdom_set = false;
+
+	regd = iwl_mvm_get_current_regdomain(mvm, NULL);
+	if (IS_ERR_OR_NULL(regd))
+		return -EIO;
+
+	if (iwl_mvm_is_wifi_mcc_supported(mvm) &&
+	    !iwl_acpi_get_mcc(mvm->dev, mcc)) {
+		kfree(regd);
+		regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc,
+					     MCC_SOURCE_BIOS, NULL);
+		if (IS_ERR_OR_NULL(regd))
+			return -EIO;
+	}
+
+	retval = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
+	kfree(regd);
+	return retval;
+}
+
+void iwl_mvm_rx_chub_update_mcc(struct iwl_mvm *mvm,
+				struct iwl_rx_cmd_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_mcc_chub_notif *notif = (void *)pkt->data;
+	enum iwl_mcc_source src;
+	char mcc[3];
+	struct ieee80211_regdomain *regd;
+	int wgds_tbl_idx;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (iwl_mvm_is_vif_assoc(mvm) && notif->source_id == MCC_SOURCE_WIFI) {
+		IWL_DEBUG_LAR(mvm, "Ignore mcc update while associated\n");
+		return;
+	}
+
+	if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
+		return;
+
+	mcc[0] = le16_to_cpu(notif->mcc) >> 8;
+	mcc[1] = le16_to_cpu(notif->mcc) & 0xff;
+	mcc[2] = '\0';
+	src = notif->source_id;
+
+	IWL_DEBUG_LAR(mvm,
+		      "RX: received chub update mcc cmd (mcc '%s' src %d)\n",
+		      mcc, src);
+	regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc, src, NULL);
+	if (IS_ERR_OR_NULL(regd))
+		return;
+
+	wgds_tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
+	if (wgds_tbl_idx < 1)
+		IWL_DEBUG_INFO(mvm,
+			       "SAR WGDS is disabled or error received (%d)\n",
+			       wgds_tbl_idx);
+	else
+		IWL_DEBUG_INFO(mvm, "SAR WGDS: geo profile %d is configured\n",
+			       wgds_tbl_idx);
+
+	regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
+	kfree(regd);
+}