Nothing lives outside the repo: the bench ixgbe driver source moves in tracked at kernel/ixgbe-sff/ (build artifacts gitignored, load-ixgbe repointed, module build verified from the new home — the reg_ops/ts_bench bench extras are finally versioned), the ice sff_i2c patch is vendored at docs/nics/e810/ice-sff-i2c.patch with its out-of-tree build recipe (TRACE_INCLUDE_PATH fixup, version-matched Makefile), the e810 NVM flash logistics land in the e810 README (exact package name, rollback -m B49691D578EC into the inactive bank, post-flash inventory failing until power cycle is the expected tell), and every ~/work/phydiag-work pointer becomes an inline statement; phydiag-work, ice-sff, e810nvm and the wiitekphy CLI (a duplicate of documented transport+protocol) are deleted

kernel/ixgbe-sff/devlink/devlink.c

@@ -0,0 +1,558 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025, Intel Corporation. */
+
+#include "ixgbe.h"
+#include "devlink.h"
+#include "ixgbe_fw_update.h"
+
+struct ixgbe_info_ctx {
+	char buf[128];
+	struct ixgbe_orom_info pending_orom;
+	struct ixgbe_nvm_info pending_nvm;
+	struct ixgbe_netlist_info pending_netlist;
+	struct ixgbe_hw_dev_caps dev_caps;
+};
+
+enum ixgbe_devlink_version_type {
+	IXGBE_DL_VERSION_RUNNING,
+	IXGBE_DL_VERSION_STORED
+};
+
+static void ixgbe_info_get_dsn(struct ixgbe_adapter *adapter,
+			       struct ixgbe_info_ctx *ctx)
+{
+	u8 dsn[8];
+
+	/* Copy the DSN into an array in Big Endian format */
+	put_unaligned_be64(pci_get_dsn(adapter->pdev), dsn);
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "%8phD", dsn);
+}
+
+static void ixgbe_info_orom_ver(struct ixgbe_adapter *adapter,
+				struct ixgbe_info_ctx *ctx,
+				enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_nvm_version nvm_ver;
+
+	ctx->buf[0] = '\0';
+
+	if (hw->mac.type == ixgbe_mac_e610) {
+		struct ixgbe_orom_info *orom = &adapter->hw.flash.orom;
+
+		if (type == IXGBE_DL_VERSION_STORED &&
+		    ctx->dev_caps.common_cap.nvm_update_pending_orom)
+			orom = &ctx->pending_orom;
+
+		snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u",
+			 orom->major, orom->build, orom->patch);
+		return;
+	}
+
+	ixgbe_get_oem_prod_version(hw, &nvm_ver);
+	if (nvm_ver.oem_valid) {
+		snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x",
+			 nvm_ver.oem_major, nvm_ver.oem_minor,
+			 nvm_ver.oem_release);
+
+		return;
+	}
+
+	ixgbe_get_orom_version(hw, &nvm_ver);
+	if (nvm_ver.or_valid)
+		snprintf(ctx->buf, sizeof(ctx->buf), "%d.%d.%d",
+			 nvm_ver.or_major, nvm_ver.or_build, nvm_ver.or_patch);
+}
+
+static void ixgbe_info_eetrack(struct ixgbe_adapter *adapter,
+			       struct ixgbe_info_ctx *ctx,
+			       enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_nvm_version nvm_ver;
+
+	if (hw->mac.type == ixgbe_mac_e610) {
+		u32 eetrack = hw->flash.nvm.eetrack;
+
+		if (type == IXGBE_DL_VERSION_STORED &&
+		    ctx->dev_caps.common_cap.nvm_update_pending_nvm)
+			eetrack = ctx->pending_nvm.eetrack;
+
+		snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", eetrack);
+		return;
+	}
+
+	ixgbe_get_oem_prod_version(hw, &nvm_ver);
+
+	/* No ETRACK version for OEM */
+	if (nvm_ver.oem_valid) {
+		ctx->buf[0] = '\0';
+		return;
+	}
+
+	ixgbe_get_etk_id(hw, &nvm_ver);
+	snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", nvm_ver.etk_id);
+}
+
+static void ixgbe_info_fw_api(struct ixgbe_adapter *adapter,
+			      struct ixgbe_info_ctx *ctx)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u",
+		 hw->api_maj_ver, hw->api_min_ver, hw->api_patch);
+}
+
+static void ixgbe_info_fw_build(struct ixgbe_adapter *adapter,
+				struct ixgbe_info_ctx *ctx)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", hw->fw_build);
+}
+
+static void ixgbe_info_fw_srev(struct ixgbe_adapter *adapter,
+			       struct ixgbe_info_ctx *ctx,
+			       enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_nvm_info *nvm = &adapter->hw.flash.nvm;
+
+	if (type == IXGBE_DL_VERSION_STORED &&
+	    ctx->dev_caps.common_cap.nvm_update_pending_nvm)
+		nvm = &ctx->pending_nvm;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "%u", nvm->srev);
+}
+
+static void ixgbe_info_orom_srev(struct ixgbe_adapter *adapter,
+				 struct ixgbe_info_ctx *ctx,
+				 enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_orom_info *orom = &adapter->hw.flash.orom;
+
+	if (type == IXGBE_DL_VERSION_STORED &&
+	    ctx->dev_caps.common_cap.nvm_update_pending_orom)
+		orom = &ctx->pending_orom;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "%u", orom->srev);
+}
+
+static void ixgbe_info_nvm_ver(struct ixgbe_adapter *adapter,
+			       struct ixgbe_info_ctx *ctx,
+			       enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_nvm_info *nvm = &adapter->hw.flash.nvm;
+
+	if (type == IXGBE_DL_VERSION_STORED &&
+	    ctx->dev_caps.common_cap.nvm_update_pending_nvm)
+		nvm = &ctx->pending_nvm;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "%x.%02x", nvm->major, nvm->minor);
+}
+
+static void ixgbe_info_netlist_ver(struct ixgbe_adapter *adapter,
+				   struct ixgbe_info_ctx *ctx,
+				   enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_netlist_info *netlist = &adapter->hw.flash.netlist;
+
+	if (type == IXGBE_DL_VERSION_STORED &&
+	    ctx->dev_caps.common_cap.nvm_update_pending_netlist)
+		netlist = &ctx->pending_netlist;
+
+	/* The netlist version fields are BCD formatted */
+	snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x-%x.%x.%x",
+		 netlist->major, netlist->minor,
+		 netlist->type >> 16, netlist->type & 0xFFFF,
+		 netlist->rev, netlist->cust_ver);
+}
+
+static void ixgbe_info_netlist_build(struct ixgbe_adapter *adapter,
+				     struct ixgbe_info_ctx *ctx,
+				     enum ixgbe_devlink_version_type type)
+{
+	struct ixgbe_netlist_info *netlist = &adapter->hw.flash.netlist;
+
+	if (type == IXGBE_DL_VERSION_STORED &&
+	    ctx->dev_caps.common_cap.nvm_update_pending_netlist)
+		netlist = &ctx->pending_netlist;
+
+	snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", netlist->hash);
+}
+
+static int ixgbe_set_ctx_dev_caps(struct ixgbe_hw *hw,
+				  struct ixgbe_info_ctx *ctx,
+				  struct netlink_ext_ack *extack)
+{
+	bool *pending_orom, *pending_nvm, *pending_netlist;
+	int err;
+
+	err = ixgbe_discover_dev_caps(hw, &ctx->dev_caps);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Unable to discover device capabilities");
+		return err;
+	}
+
+	pending_orom = &ctx->dev_caps.common_cap.nvm_update_pending_orom;
+	pending_nvm = &ctx->dev_caps.common_cap.nvm_update_pending_nvm;
+	pending_netlist = &ctx->dev_caps.common_cap.nvm_update_pending_netlist;
+
+	if (*pending_orom) {
+		err = ixgbe_get_inactive_orom_ver(hw, &ctx->pending_orom);
+		if (err)
+			*pending_orom = false;
+	}
+
+	if (*pending_nvm) {
+		err = ixgbe_get_inactive_nvm_ver(hw, &ctx->pending_nvm);
+		if (err)
+			*pending_nvm = false;
+	}
+
+	if (*pending_netlist) {
+		err = ixgbe_get_inactive_netlist_ver(hw, &ctx->pending_netlist);
+		if (err)
+			*pending_netlist = false;
+	}
+
+	return 0;
+}
+
+static int ixgbe_devlink_info_get_e610(struct ixgbe_adapter *adapter,
+				       struct devlink_info_req *req,
+				       struct ixgbe_info_ctx *ctx)
+{
+	int err;
+
+	ixgbe_info_fw_api(adapter, ctx);
+	err = devlink_info_version_running_put(req,
+					       DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
+					       ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_fw_build(adapter, ctx);
+	err = devlink_info_version_running_put(req, "fw.mgmt.build", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_fw_srev(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req, "fw.mgmt.srev", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_orom_srev(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req, "fw.undi.srev", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_nvm_ver(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req, "fw.psid.api", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_netlist_ver(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req, "fw.netlist", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_netlist_build(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	return devlink_info_version_running_put(req, "fw.netlist.build",
+						ctx->buf);
+}
+
+static int
+ixgbe_devlink_pending_info_get_e610(struct ixgbe_adapter *adapter,
+				    struct devlink_info_req *req,
+				    struct ixgbe_info_ctx *ctx)
+{
+	int err;
+
+	ixgbe_info_orom_ver(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req,
+					      DEVLINK_INFO_VERSION_GENERIC_FW_UNDI,
+					      ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_eetrack(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req,
+					      DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID,
+					      ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_fw_srev(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req, "fw.mgmt.srev", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_orom_srev(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req, "fw.undi.srev", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_nvm_ver(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req, "fw.psid.api", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_netlist_ver(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	err = devlink_info_version_stored_put(req, "fw.netlist", ctx->buf);
+	if (err)
+		return err;
+
+	ixgbe_info_netlist_build(adapter, ctx, IXGBE_DL_VERSION_STORED);
+	return devlink_info_version_stored_put(req, "fw.netlist.build",
+					       ctx->buf);
+}
+
+static int ixgbe_devlink_info_get(struct devlink *devlink,
+				  struct devlink_info_req *req,
+				  struct netlink_ext_ack *extack)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_info_ctx *ctx;
+	int err;
+
+	ctx = kmalloc_obj(*ctx);
+	if (!ctx)
+		return -ENOMEM;
+
+	if (hw->mac.type == ixgbe_mac_e610)
+		ixgbe_refresh_fw_version(adapter);
+
+	ixgbe_info_get_dsn(adapter, ctx);
+	err = devlink_info_serial_number_put(req, ctx->buf);
+	if (err)
+		goto free_ctx;
+
+	err = hw->eeprom.ops.read_pba_string(hw, ctx->buf, sizeof(ctx->buf));
+	if (err)
+		goto free_ctx;
+
+	err = devlink_info_version_fixed_put(req,
+					     DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
+					     ctx->buf);
+	if (err)
+		goto free_ctx;
+
+	ixgbe_info_orom_ver(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req,
+					       DEVLINK_INFO_VERSION_GENERIC_FW_UNDI,
+					       ctx->buf);
+	if (err)
+		goto free_ctx;
+
+	ixgbe_info_eetrack(adapter, ctx, IXGBE_DL_VERSION_RUNNING);
+	err = devlink_info_version_running_put(req,
+					       DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID,
+					       ctx->buf);
+	if (err || hw->mac.type != ixgbe_mac_e610)
+		goto free_ctx;
+
+	err = ixgbe_set_ctx_dev_caps(hw, ctx, extack);
+	if (err)
+		goto free_ctx;
+
+	err = ixgbe_devlink_info_get_e610(adapter, req, ctx);
+	if (err)
+		goto free_ctx;
+
+	err = ixgbe_devlink_pending_info_get_e610(adapter, req, ctx);
+free_ctx:
+	kfree(ctx);
+	return err;
+}
+
+/**
+ * ixgbe_devlink_reload_empr_start - Start EMP reset to activate new firmware
+ * @devlink: pointer to the devlink instance to reload
+ * @netns_change: if true, the network namespace is changing
+ * @action: the action to perform. Must be DEVLINK_RELOAD_ACTION_FW_ACTIVATE
+ * @limit: limits on what reload should do, such as not resetting
+ * @extack: netlink extended ACK structure
+ *
+ * Allow user to activate new Embedded Management Processor firmware by
+ * issuing device specific EMP reset. Called in response to
+ * a DEVLINK_CMD_RELOAD with the DEVLINK_RELOAD_ACTION_FW_ACTIVATE.
+ *
+ * Note that teardown and rebuild of the driver state happens automatically as
+ * part of an interrupt and watchdog task. This is because all physical
+ * functions on the device must be able to reset when an EMP reset occurs from
+ * any source.
+ *
+ * Return: the exit code of the operation.
+ */
+static int ixgbe_devlink_reload_empr_start(struct devlink *devlink,
+					   bool netns_change,
+					   enum devlink_reload_action action,
+					   enum devlink_reload_limit limit,
+					   struct netlink_ext_ack *extack)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_hw *hw = &adapter->hw;
+	u8 pending;
+	int err;
+
+	if (hw->mac.type != ixgbe_mac_e610)
+		return -EOPNOTSUPP;
+
+	err = ixgbe_get_pending_updates(adapter, &pending, extack);
+	if (err)
+		return err;
+
+	/* Pending is a bitmask of which flash banks have a pending update,
+	 * including the main NVM bank, the Option ROM bank, and the netlist
+	 * bank. If any of these bits are set, then there is a pending update
+	 * waiting to be activated.
+	 */
+	if (!pending) {
+		NL_SET_ERR_MSG_MOD(extack, "No pending firmware update");
+		return -ECANCELED;
+	}
+
+	if (adapter->fw_emp_reset_disabled) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "EMP reset is not available. To activate firmware, a reboot or power cycle is needed");
+		return -ECANCELED;
+	}
+
+	err = ixgbe_aci_nvm_update_empr(hw);
+	if (err)
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to trigger EMP device reset to reload firmware");
+
+	return err;
+}
+
+/*Wait for 10 sec with 0.5 sec tic. EMPR takes no less than half of a sec */
+#define IXGBE_DEVLINK_RELOAD_TIMEOUT_SEC	20
+
+/**
+ * ixgbe_devlink_reload_empr_finish - finishes EMP reset
+ * @devlink: pointer to the devlink instance
+ * @action: the action to perform.
+ * @limit: limits on what reload should do
+ * @actions_performed: actions performed
+ * @extack: netlink extended ACK structure
+ *
+ * Wait for new NVM to be loaded during EMP reset.
+ *
+ * Return: -ETIME when timer is exceeded, 0 on success.
+ */
+static int ixgbe_devlink_reload_empr_finish(struct devlink *devlink,
+					    enum devlink_reload_action action,
+					    enum devlink_reload_limit limit,
+					    u32 *actions_performed,
+					    struct netlink_ext_ack *extack)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_hw *hw = &adapter->hw;
+	int i = 0;
+	u32 fwsm;
+
+	do {
+		/* Just right away after triggering EMP reset the FWSM register
+		 * may be not cleared yet, so begin the loop with the delay
+		 * in order to not check the not updated register.
+		 */
+		mdelay(500);
+
+		fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
+
+		if (i++ >= IXGBE_DEVLINK_RELOAD_TIMEOUT_SEC)
+			return -ETIME;
+
+	} while (!(fwsm & IXGBE_FWSM_FW_VAL_BIT));
+
+	*actions_performed = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE);
+
+	adapter->flags2 &= ~(IXGBE_FLAG2_API_MISMATCH |
+			     IXGBE_FLAG2_FW_ROLLBACK);
+
+	return ixgbe_refresh_fw_version(adapter);
+}
+
+static const struct devlink_ops ixgbe_devlink_ops = {
+	.info_get = ixgbe_devlink_info_get,
+	.supported_flash_update_params =
+		DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK,
+	.flash_update = ixgbe_flash_pldm_image,
+	.reload_actions = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
+	.reload_down = ixgbe_devlink_reload_empr_start,
+	.reload_up = ixgbe_devlink_reload_empr_finish,
+};
+
+/**
+ * ixgbe_allocate_devlink - Allocate devlink instance
+ * @dev: device to allocate devlink for
+ *
+ * Allocate a devlink instance for this physical function.
+ *
+ * Return: pointer to the device adapter structure on success,
+ * ERR_PTR(-ENOMEM) when allocation failed.
+ */
+struct ixgbe_adapter *ixgbe_allocate_devlink(struct device *dev)
+{
+	struct ixgbe_adapter *adapter;
+	struct devlink *devlink;
+
+	devlink = devlink_alloc(&ixgbe_devlink_ops, sizeof(*adapter), dev);
+	if (!devlink)
+		return ERR_PTR(-ENOMEM);
+
+	adapter = devlink_priv(devlink);
+	adapter->devlink = devlink;
+
+	return adapter;
+}
+
+/**
+ * ixgbe_devlink_set_switch_id - Set unique switch ID based on PCI DSN
+ * @adapter: pointer to the device adapter structure
+ * @ppid: struct with switch id information
+ */
+static void ixgbe_devlink_set_switch_id(struct ixgbe_adapter *adapter,
+					struct netdev_phys_item_id *ppid)
+{
+	u64 id = pci_get_dsn(adapter->pdev);
+
+	ppid->id_len = sizeof(id);
+	put_unaligned_be64(id, &ppid->id);
+}
+
+/**
+ * ixgbe_devlink_register_port - Register devlink port
+ * @adapter: pointer to the device adapter structure
+ *
+ * Create and register a devlink_port for this physical function.
+ *
+ * Return: 0 on success, error code on failure.
+ */
+int ixgbe_devlink_register_port(struct ixgbe_adapter *adapter)
+{
+	struct devlink_port *devlink_port = &adapter->devlink_port;
+	struct devlink *devlink = adapter->devlink;
+	struct device *dev = &adapter->pdev->dev;
+	struct devlink_port_attrs attrs = {};
+	int err;
+
+	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+	attrs.phys.port_number = adapter->hw.bus.func;
+	attrs.no_phys_port_name = 1;
+	ixgbe_devlink_set_switch_id(adapter, &attrs.switch_id);
+
+	devlink_port_attrs_set(devlink_port, &attrs);
+
+	err = devl_port_register(devlink, devlink_port, 0);
+	if (err) {
+		dev_err(dev,
+			"devlink port registration failed, err %d\n", err);
+	}
+
+	return err;
+}

kernel/ixgbe-sff/devlink/devlink.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2025, Intel Corporation. */
+
+#ifndef _IXGBE_DEVLINK_H_
+#define _IXGBE_DEVLINK_H_
+
+struct ixgbe_adapter *ixgbe_allocate_devlink(struct device *dev);
+int ixgbe_devlink_register_port(struct ixgbe_adapter *adapter);
+void ixgbe_devlink_init_regions(struct ixgbe_adapter *adapter);
+void ixgbe_devlink_destroy_regions(struct ixgbe_adapter *adapter);
+
+#endif /* _IXGBE_DEVLINK_H_ */

kernel/ixgbe-sff/devlink/region.c

@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025, Intel Corporation. */
+
+#include "ixgbe.h"
+#include "devlink.h"
+
+#define IXGBE_DEVLINK_READ_BLK_SIZE (1024 * 1024)
+
+static const struct devlink_region_ops ixgbe_nvm_region_ops;
+static const struct devlink_region_ops ixgbe_sram_region_ops;
+
+static int ixgbe_devlink_parse_region(struct ixgbe_hw *hw,
+				      const struct devlink_region_ops *ops,
+				      bool *read_shadow_ram, u32 *nvm_size)
+{
+	if (ops == &ixgbe_nvm_region_ops) {
+		*read_shadow_ram = false;
+		*nvm_size = hw->flash.flash_size;
+	} else if (ops == &ixgbe_sram_region_ops) {
+		*read_shadow_ram = true;
+		*nvm_size = hw->flash.sr_words * 2u;
+	} else {
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+/**
+ * ixgbe_devlink_nvm_snapshot - Capture a snapshot of the NVM content
+ * @devlink: the devlink instance
+ * @ops: the devlink region being snapshotted
+ * @extack: extended ACK response structure
+ * @data: on exit points to snapshot data buffer
+ *
+ * This function is called in response to the DEVLINK_CMD_REGION_NEW cmd.
+ *
+ * Capture a snapshot of the whole requested NVM region.
+ *
+ * No need to worry with freeing @data, devlink core takes care if it.
+ *
+ * Return: 0 on success, -EOPNOTSUPP for unsupported regions, -EBUSY when
+ * cannot lock NVM, -ENOMEM when cannot alloc mem and -EIO when error
+ * occurs during reading.
+ */
+static int ixgbe_devlink_nvm_snapshot(struct devlink *devlink,
+				      const struct devlink_region_ops *ops,
+				      struct netlink_ext_ack *extack, u8 **data)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_hw *hw = &adapter->hw;
+	bool read_shadow_ram;
+	u8 *nvm_data, *buf;
+	u32 nvm_size, left;
+	u8 num_blks;
+	int err;
+
+	err = ixgbe_devlink_parse_region(hw, ops, &read_shadow_ram, &nvm_size);
+	if (err)
+		return err;
+
+	nvm_data = kvzalloc(nvm_size, GFP_KERNEL);
+	if (!nvm_data)
+		return -ENOMEM;
+
+	num_blks = DIV_ROUND_UP(nvm_size, IXGBE_DEVLINK_READ_BLK_SIZE);
+	buf = nvm_data;
+	left = nvm_size;
+
+	for (int i = 0; i < num_blks; i++) {
+		u32 read_sz = min_t(u32, IXGBE_DEVLINK_READ_BLK_SIZE, left);
+
+		/* Need to acquire NVM lock during each loop run because the
+		 * total period of reading whole NVM is longer than the maximum
+		 * period the lock can be taken defined by the IXGBE_NVM_TIMEOUT.
+		 */
+		err = ixgbe_acquire_nvm(hw, LIBIE_AQC_RES_ACCESS_READ);
+		if (err) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Failed to acquire NVM semaphore");
+			kvfree(nvm_data);
+			return -EBUSY;
+		}
+
+		err = ixgbe_read_flat_nvm(hw, i * IXGBE_DEVLINK_READ_BLK_SIZE,
+					  &read_sz, buf, read_shadow_ram);
+		if (err) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Failed to read RAM content");
+			ixgbe_release_nvm(hw);
+			kvfree(nvm_data);
+			return -EIO;
+		}
+
+		ixgbe_release_nvm(hw);
+
+		buf += read_sz;
+		left -= read_sz;
+	}
+
+	*data = nvm_data;
+	return 0;
+}
+
+/**
+ * ixgbe_devlink_devcaps_snapshot - Capture a snapshot of device capabilities
+ * @devlink: the devlink instance
+ * @ops: the devlink region being snapshotted
+ * @extack: extended ACK response structure
+ * @data: on exit points to snapshot data buffer
+ *
+ * This function is called in response to the DEVLINK_CMD_REGION_NEW for
+ * the device-caps devlink region.
+ *
+ * Capture a snapshot of the device capabilities reported by firmware.
+ *
+ * No need to worry with freeing @data, devlink core takes care if it.
+ *
+ * Return: 0 on success, -ENOMEM when cannot alloc mem, or return code of
+ * the reading operation.
+ */
+static int ixgbe_devlink_devcaps_snapshot(struct devlink *devlink,
+					  const struct devlink_region_ops *ops,
+					  struct netlink_ext_ack *extack,
+					  u8 **data)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_aci_cmd_list_caps_elem *caps;
+	struct ixgbe_hw *hw = &adapter->hw;
+	int err;
+
+	caps = kvzalloc(IXGBE_ACI_MAX_BUFFER_SIZE, GFP_KERNEL);
+	if (!caps)
+		return -ENOMEM;
+
+	err = ixgbe_aci_list_caps(hw, caps, IXGBE_ACI_MAX_BUFFER_SIZE, NULL,
+				  ixgbe_aci_opc_list_dev_caps);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to read device capabilities");
+		kvfree(caps);
+		return err;
+	}
+
+	*data = (u8 *)caps;
+	return 0;
+}
+
+/**
+ * ixgbe_devlink_nvm_read - Read a portion of NVM flash content
+ * @devlink: the devlink instance
+ * @ops: the devlink region to snapshot
+ * @extack: extended ACK response structure
+ * @offset: the offset to start at
+ * @size: the amount to read
+ * @data: the data buffer to read into
+ *
+ * This function is called in response to DEVLINK_CMD_REGION_READ to directly
+ * read a section of the NVM contents.
+ *
+ * Read from either the nvm-flash region either shadow-ram region.
+ *
+ * Return: 0 on success, -EOPNOTSUPP for unsupported regions, -EBUSY when
+ * cannot lock NVM, -ERANGE when buffer limit exceeded and -EIO when error
+ * occurs during reading.
+ */
+static int ixgbe_devlink_nvm_read(struct devlink *devlink,
+				  const struct devlink_region_ops *ops,
+				  struct netlink_ext_ack *extack,
+				  u64 offset, u32 size, u8 *data)
+{
+	struct ixgbe_adapter *adapter = devlink_priv(devlink);
+	struct ixgbe_hw *hw = &adapter->hw;
+	bool read_shadow_ram;
+	u32 nvm_size;
+	int err;
+
+	err = ixgbe_devlink_parse_region(hw, ops, &read_shadow_ram, &nvm_size);
+	if (err)
+		return err;
+
+	if (offset + size > nvm_size) {
+		NL_SET_ERR_MSG_MOD(extack, "Cannot read beyond the region size");
+		return -ERANGE;
+	}
+
+	err = ixgbe_acquire_nvm(hw, LIBIE_AQC_RES_ACCESS_READ);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore");
+		return -EBUSY;
+	}
+
+	err = ixgbe_read_flat_nvm(hw, (u32)offset, &size, data, read_shadow_ram);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to read NVM contents");
+		ixgbe_release_nvm(hw);
+		return -EIO;
+	}
+
+	ixgbe_release_nvm(hw);
+	return 0;
+}
+
+static const struct devlink_region_ops ixgbe_nvm_region_ops = {
+	.name = "nvm-flash",
+	.destructor = kvfree,
+	.snapshot = ixgbe_devlink_nvm_snapshot,
+	.read = ixgbe_devlink_nvm_read,
+};
+
+static const struct devlink_region_ops ixgbe_sram_region_ops = {
+	.name = "shadow-ram",
+	.destructor = kvfree,
+	.snapshot = ixgbe_devlink_nvm_snapshot,
+	.read = ixgbe_devlink_nvm_read,
+};
+
+static const struct devlink_region_ops ixgbe_devcaps_region_ops = {
+	.name = "device-caps",
+	.destructor = kvfree,
+	.snapshot = ixgbe_devlink_devcaps_snapshot,
+};
+
+/**
+ * ixgbe_devlink_init_regions - Initialize devlink regions
+ * @adapter: adapter instance
+ *
+ * Create devlink regions used to enable access to dump the contents of the
+ * flash memory of the device.
+ */
+void ixgbe_devlink_init_regions(struct ixgbe_adapter *adapter)
+{
+	struct devlink *devlink = adapter->devlink;
+	struct device *dev = &adapter->pdev->dev;
+	u64 nvm_size, sram_size;
+
+	if (adapter->hw.mac.type != ixgbe_mac_e610)
+		return;
+
+	nvm_size = adapter->hw.flash.flash_size;
+	adapter->nvm_region = devl_region_create(devlink, &ixgbe_nvm_region_ops,
+						 1, nvm_size);
+	if (IS_ERR(adapter->nvm_region)) {
+		dev_err(dev,
+			"Failed to create NVM devlink region, err %ld\n",
+			PTR_ERR(adapter->nvm_region));
+		adapter->nvm_region = NULL;
+	}
+
+	sram_size = adapter->hw.flash.sr_words * 2u;
+	adapter->sram_region = devl_region_create(devlink, &ixgbe_sram_region_ops,
+						  1, sram_size);
+	if (IS_ERR(adapter->sram_region)) {
+		dev_err(dev,
+			"Failed to create shadow-ram devlink region, err %ld\n",
+			PTR_ERR(adapter->sram_region));
+		adapter->sram_region = NULL;
+	}
+
+	adapter->devcaps_region = devl_region_create(devlink,
+						     &ixgbe_devcaps_region_ops,
+						     10, IXGBE_ACI_MAX_BUFFER_SIZE);
+	if (IS_ERR(adapter->devcaps_region)) {
+		dev_err(dev,
+			"Failed to create device-caps devlink region, err %ld\n",
+			PTR_ERR(adapter->devcaps_region));
+		adapter->devcaps_region = NULL;
+	}
+}
+
+/**
+ * ixgbe_devlink_destroy_regions - Destroy devlink regions
+ * @adapter: adapter instance
+ *
+ * Remove previously created regions for this adapter instance.
+ */
+void ixgbe_devlink_destroy_regions(struct ixgbe_adapter *adapter)
+{
+	if (adapter->hw.mac.type != ixgbe_mac_e610)
+		return;
+
+	if (adapter->nvm_region)
+		devl_region_destroy(adapter->nvm_region);
+
+	if (adapter->sram_region)
+		devl_region_destroy(adapter->sram_region);
+
+	if (adapter->devcaps_region)
+		devl_region_destroy(adapter->devcaps_region);
+}