Message-Id: <20230203211456.705649-7-anthony.l.nguyen@intel.com>
Date:   Fri,  3 Feb 2023 13:14:52 -0800
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com
Cc:     Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
        netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
        Gurucharan G <gurucharanx.g@...el.com>
Subject: [PATCH net-next 06/10] ice: split probe into smaller functions

From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>

Part of code from probe can be reused in reload flow. Move this code to
separate function. Create unroll functions for each part of
initialization, like: ice_init_dev() and ice_deinit_dev(). It
simplifies unrolling and can be used in remove flow.

Avoid freeing port info as it could be reused in reload path.
Will be freed in remove path since is allocated via devm_kzalloc().

Also clean the remove path to reflect the init steps.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice.h        |   2 +
 drivers/net/ethernet/intel/ice/ice_common.c |  11 +-
 drivers/net/ethernet/intel/ice/ice_main.c   | 934 ++++++++++++--------
 3 files changed, 559 insertions(+), 388 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index 3f8ee7c6f087..5f696ae5eaa0 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -931,6 +931,8 @@ int ice_open(struct net_device *netdev);
 int ice_open_internal(struct net_device *netdev);
 int ice_stop(struct net_device *netdev);
 void ice_service_task_schedule(struct ice_pf *pf);
+int ice_load(struct ice_pf *pf);
+void ice_unload(struct ice_pf *pf);
 
 /**
  * ice_set_rdma_cap - enable RDMA support
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index f5842ff42bc7..75f8b8bca7e8 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -1088,8 +1088,10 @@ int ice_init_hw(struct ice_hw *hw)
 	if (status)
 		goto err_unroll_cqinit;
 
-	hw->port_info = devm_kzalloc(ice_hw_to_dev(hw),
-				     sizeof(*hw->port_info), GFP_KERNEL);
+	if (!hw->port_info)
+		hw->port_info = devm_kzalloc(ice_hw_to_dev(hw),
+					     sizeof(*hw->port_info),
+					     GFP_KERNEL);
 	if (!hw->port_info) {
 		status = -ENOMEM;
 		goto err_unroll_cqinit;
@@ -1217,11 +1219,6 @@ void ice_deinit_hw(struct ice_hw *hw)
 	ice_free_hw_tbls(hw);
 	mutex_destroy(&hw->tnl_lock);
 
-	if (hw->port_info) {
-		devm_kfree(ice_hw_to_dev(hw), hw->port_info);
-		hw->port_info = NULL;
-	}
-
 	/* Attempt to disable FW logging before shutting down control queues */
 	ice_cfg_fw_log(hw, false);
 	ice_destroy_all_ctrlq(hw);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 9c21dde0fcdf..77296db4aa77 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3422,53 +3422,6 @@ static void ice_set_netdev_features(struct net_device *netdev)
 	netdev->hw_features |= NETIF_F_RXFCS;
 }
 
-/**
- * ice_cfg_netdev - Allocate, configure and register a netdev
- * @vsi: the VSI associated with the new netdev
- *
- * Returns 0 on success, negative value on failure
- */
-static int ice_cfg_netdev(struct ice_vsi *vsi)
-{
-	struct ice_netdev_priv *np;
-	struct net_device *netdev;
-	u8 mac_addr[ETH_ALEN];
-
-	netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,
-				    vsi->alloc_rxq);
-	if (!netdev)
-		return -ENOMEM;
-
-	set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
-	vsi->netdev = netdev;
-	np = netdev_priv(netdev);
-	np->vsi = vsi;
-
-	ice_set_netdev_features(netdev);
-
-	ice_set_ops(netdev);
-
-	if (vsi->type == ICE_VSI_PF) {
-		SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back));
-		ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
-		eth_hw_addr_set(netdev, mac_addr);
-		ether_addr_copy(netdev->perm_addr, mac_addr);
-	}
-
-	netdev->priv_flags |= IFF_UNICAST_FLT;
-
-	/* Setup netdev TC information */
-	ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);
-
-	/* setup watchdog timeout value to be 5 second */
-	netdev->watchdog_timeo = 5 * HZ;
-
-	netdev->min_mtu = ETH_MIN_MTU;
-	netdev->max_mtu = ICE_MAX_MTU;
-
-	return 0;
-}
-
 /**
  * ice_fill_rss_lut - Fill the RSS lookup table with default values
  * @lut: Lookup table
@@ -3688,20 +3641,6 @@ static void ice_tc_indir_block_unregister(struct ice_vsi *vsi)
 				 ice_rep_indr_tc_block_unbind);
 }
 
-/**
- * ice_tc_indir_block_remove - clean indirect TC block notifications
- * @pf: PF structure
- */
-static void ice_tc_indir_block_remove(struct ice_pf *pf)
-{
-	struct ice_vsi *pf_vsi = ice_get_main_vsi(pf);
-
-	if (!pf_vsi)
-		return;
-
-	ice_tc_indir_block_unregister(pf_vsi);
-}
-
 /**
  * ice_tc_indir_block_register - Register TC indirect block notifications
  * @vsi: VSI struct which has the netdev
@@ -3721,76 +3660,6 @@ static int ice_tc_indir_block_register(struct ice_vsi *vsi)
 	return flow_indr_dev_register(ice_indr_setup_tc_cb, np);
 }
 
-/**
- * ice_setup_pf_sw - Setup the HW switch on startup or after reset
- * @pf: board private structure
- *
- * Returns 0 on success, negative value on failure
- */
-static int ice_setup_pf_sw(struct ice_pf *pf)
-{
-	struct device *dev = ice_pf_to_dev(pf);
-	bool dvm = ice_is_dvm_ena(&pf->hw);
-	struct ice_vsi *vsi;
-	int status;
-
-	if (ice_is_reset_in_progress(pf->state))
-		return -EBUSY;
-
-	status = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);
-	if (status)
-		return -EIO;
-
-	vsi = ice_pf_vsi_setup(pf, pf->hw.port_info);
-	if (!vsi)
-		return -ENOMEM;
-
-	/* init channel list */
-	INIT_LIST_HEAD(&vsi->ch_list);
-
-	status = ice_cfg_netdev(vsi);
-	if (status)
-		goto unroll_vsi_setup;
-	/* netdev has to be configured before setting frame size */
-	ice_vsi_cfg_frame_size(vsi);
-
-	/* init indirect block notifications */
-	status = ice_tc_indir_block_register(vsi);
-	if (status) {
-		dev_err(dev, "Failed to register netdev notifier\n");
-		goto unroll_cfg_netdev;
-	}
-
-	/* Setup DCB netlink interface */
-	ice_dcbnl_setup(vsi);
-
-	/* registering the NAPI handler requires both the queues and
-	 * netdev to be created, which are done in ice_pf_vsi_setup()
-	 * and ice_cfg_netdev() respectively
-	 */
-	ice_napi_add(vsi);
-
-	status = ice_init_mac_fltr(pf);
-	if (status)
-		goto unroll_napi_add;
-
-	return 0;
-
-unroll_napi_add:
-	ice_tc_indir_block_unregister(vsi);
-unroll_cfg_netdev:
-	ice_napi_del(vsi);
-	if (vsi->netdev) {
-		clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
-		free_netdev(vsi->netdev);
-		vsi->netdev = NULL;
-	}
-
-unroll_vsi_setup:
-	ice_vsi_release(vsi);
-	return status;
-}
-
 /**
  * ice_get_avail_q_count - Get count of queues in use
  * @pf_qmap: bitmap to get queue use count from
@@ -4489,6 +4358,23 @@ static int ice_init_fdir(struct ice_pf *pf)
 	return err;
 }
 
+static void ice_deinit_fdir(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi = ice_get_ctrl_vsi(pf);
+
+	if (!vsi)
+		return;
+
+	ice_vsi_manage_fdir(vsi, false);
+	ice_vsi_release(vsi);
+	if (pf->ctrl_vsi_idx != ICE_NO_VSI) {
+		pf->vsi[pf->ctrl_vsi_idx] = NULL;
+		pf->ctrl_vsi_idx = ICE_NO_VSI;
+	}
+
+	mutex_destroy(&(&pf->hw)->fdir_fltr_lock);
+}
+
 /**
  * ice_get_opt_fw_name - return optional firmware file name or NULL
  * @pf: pointer to the PF instance
@@ -4589,126 +4475,182 @@ static void ice_print_wake_reason(struct ice_pf *pf)
 
 /**
  * ice_register_netdev - register netdev
- * @pf: pointer to the PF struct
+ * @vsi: pointer to the VSI struct
  */
-static int ice_register_netdev(struct ice_pf *pf)
+static int ice_register_netdev(struct ice_vsi *vsi)
 {
-	struct ice_vsi *vsi;
-	int err = 0;
+	int err;
 
-	vsi = ice_get_main_vsi(pf);
 	if (!vsi || !vsi->netdev)
 		return -EIO;
 
 	err = register_netdev(vsi->netdev);
 	if (err)
-		goto err_register_netdev;
+		return err;
 
 	set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
 	netif_carrier_off(vsi->netdev);
 	netif_tx_stop_all_queues(vsi->netdev);
 
 	return 0;
-err_register_netdev:
-	free_netdev(vsi->netdev);
-	vsi->netdev = NULL;
-	clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
-	return err;
+}
+
+static void ice_unregister_netdev(struct ice_vsi *vsi)
+{
+	if (!vsi || !vsi->netdev)
+		return;
+
+	unregister_netdev(vsi->netdev);
+	clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
 }
 
 /**
- * ice_probe - Device initialization routine
- * @pdev: PCI device information struct
- * @ent: entry in ice_pci_tbl
+ * ice_cfg_netdev - Allocate, configure and register a netdev
+ * @vsi: the VSI associated with the new netdev
  *
- * Returns 0 on success, negative on failure
+ * Returns 0 on success, negative value on failure
  */
-static int
-ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
+static int ice_cfg_netdev(struct ice_vsi *vsi)
 {
-	struct device *dev = &pdev->dev;
-	struct ice_vsi *vsi;
-	struct ice_pf *pf;
-	struct ice_hw *hw;
-	int i, err;
+	struct ice_netdev_priv *np;
+	struct net_device *netdev;
+	u8 mac_addr[ETH_ALEN];
 
-	if (pdev->is_virtfn) {
-		dev_err(dev, "can't probe a virtual function\n");
-		return -EINVAL;
-	}
+	netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,
+				    vsi->alloc_rxq);
+	if (!netdev)
+		return -ENOMEM;
 
-	/* this driver uses devres, see
-	 * Documentation/driver-api/driver-model/devres.rst
-	 */
-	err = pcim_enable_device(pdev);
-	if (err)
-		return err;
+	set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
+	vsi->netdev = netdev;
+	np = netdev_priv(netdev);
+	np->vsi = vsi;
 
-	err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev));
-	if (err) {
-		dev_err(dev, "BAR0 I/O map error %d\n", err);
-		return err;
+	ice_set_netdev_features(netdev);
+	ice_set_ops(netdev);
+
+	if (vsi->type == ICE_VSI_PF) {
+		SET_NETDEV_DEV(netdev, ice_pf_to_dev(vsi->back));
+		ether_addr_copy(mac_addr, vsi->port_info->mac.perm_addr);
+		eth_hw_addr_set(netdev, mac_addr);
 	}
 
-	pf = ice_allocate_pf(dev);
-	if (!pf)
-		return -ENOMEM;
+	netdev->priv_flags |= IFF_UNICAST_FLT;
 
-	/* initialize Auxiliary index to invalid value */
-	pf->aux_idx = -1;
+	/* Setup netdev TC information */
+	ice_vsi_cfg_netdev_tc(vsi, vsi->tc_cfg.ena_tc);
 
-	/* set up for high or low DMA */
-	err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
-	if (err) {
-		dev_err(dev, "DMA configuration failed: 0x%x\n", err);
+	netdev->max_mtu = ICE_MAX_MTU;
+
+	return 0;
+}
+
+static void ice_decfg_netdev(struct ice_vsi *vsi)
+{
+	clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
+	free_netdev(vsi->netdev);
+	vsi->netdev = NULL;
+}
+
+static int ice_start_eth(struct ice_vsi *vsi)
+{
+	int err;
+
+	err = ice_init_mac_fltr(vsi->back);
+	if (err)
 		return err;
-	}
 
-	pci_set_master(pdev);
+	rtnl_lock();
+	err = ice_vsi_open(vsi);
+	rtnl_unlock();
 
-	pf->pdev = pdev;
-	pci_set_drvdata(pdev, pf);
-	set_bit(ICE_DOWN, pf->state);
-	/* Disable service task until DOWN bit is cleared */
-	set_bit(ICE_SERVICE_DIS, pf->state);
+	return err;
+}
 
-	hw = &pf->hw;
-	hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
-	pci_save_state(pdev);
+static int ice_init_eth(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi = ice_get_main_vsi(pf);
+	int err;
 
-	hw->back = pf;
-	hw->vendor_id = pdev->vendor;
-	hw->device_id = pdev->device;
-	pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
-	hw->subsystem_vendor_id = pdev->subsystem_vendor;
-	hw->subsystem_device_id = pdev->subsystem_device;
-	hw->bus.device = PCI_SLOT(pdev->devfn);
-	hw->bus.func = PCI_FUNC(pdev->devfn);
-	ice_set_ctrlq_len(hw);
+	if (!vsi)
+		return -EINVAL;
 
-	pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
+	/* init channel list */
+	INIT_LIST_HEAD(&vsi->ch_list);
 
-#ifndef CONFIG_DYNAMIC_DEBUG
-	if (debug < -1)
-		hw->debug_mask = debug;
-#endif
+	err = ice_cfg_netdev(vsi);
+	if (err)
+		return err;
+	/* Setup DCB netlink interface */
+	ice_dcbnl_setup(vsi);
 
-	err = ice_init_hw(hw);
-	if (err) {
-		dev_err(dev, "ice_init_hw failed: %d\n", err);
-		err = -EIO;
-		goto err_exit_unroll;
-	}
+	err = ice_init_mac_fltr(pf);
+	if (err)
+		goto err_init_mac_fltr;
 
-	ice_init_feature_support(pf);
+	err = ice_devlink_create_pf_port(pf);
+	if (err)
+		goto err_devlink_create_pf_port;
 
-	ice_request_fw(pf);
+	SET_NETDEV_DEVLINK_PORT(vsi->netdev, &pf->devlink_port);
 
-	/* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be
-	 * set in pf->state, which will cause ice_is_safe_mode to return
-	 * true
-	 */
-	if (ice_is_safe_mode(pf)) {
+	err = ice_register_netdev(vsi);
+	if (err)
+		goto err_register_netdev;
+
+	err = ice_tc_indir_block_register(vsi);
+	if (err)
+		goto err_tc_indir_block_register;
+
+	ice_napi_add(vsi);
+
+	return 0;
+
+err_tc_indir_block_register:
+	ice_unregister_netdev(vsi);
+err_register_netdev:
+	ice_devlink_destroy_pf_port(pf);
+err_devlink_create_pf_port:
+err_init_mac_fltr:
+	ice_decfg_netdev(vsi);
+	return err;
+}
+
+static void ice_deinit_eth(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi = ice_get_main_vsi(pf);
+
+	if (!vsi)
+		return;
+
+	ice_vsi_close(vsi);
+	ice_unregister_netdev(vsi);
+	ice_devlink_destroy_pf_port(pf);
+	ice_tc_indir_block_unregister(vsi);
+	ice_decfg_netdev(vsi);
+}
+
+static int ice_init_dev(struct ice_pf *pf)
+{
+	struct device *dev = ice_pf_to_dev(pf);
+	struct ice_hw *hw = &pf->hw;
+	int err;
+
+	err = ice_init_hw(hw);
+	if (err) {
+		dev_err(dev, "ice_init_hw failed: %d\n", err);
+		return err;
+	}
+
+	ice_init_feature_support(pf);
+
+	ice_request_fw(pf);
+
+	/* if ice_request_fw fails, ICE_FLAG_ADV_FEATURES bit won't be
+	 * set in pf->state, which will cause ice_is_safe_mode to return
+	 * true
+	 */
+	if (ice_is_safe_mode(pf)) {
 		/* we already got function/device capabilities but these don't
 		 * reflect what the driver needs to do in safe mode. Instead of
 		 * adding conditional logic everywhere to ignore these
@@ -4720,62 +4662,31 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 	err = ice_init_pf(pf);
 	if (err) {
 		dev_err(dev, "ice_init_pf failed: %d\n", err);
-		goto err_init_pf_unroll;
+		goto err_init_pf;
 	}
 
-	ice_devlink_init_regions(pf);
-
 	pf->hw.udp_tunnel_nic.set_port = ice_udp_tunnel_set_port;
 	pf->hw.udp_tunnel_nic.unset_port = ice_udp_tunnel_unset_port;
 	pf->hw.udp_tunnel_nic.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP;
 	pf->hw.udp_tunnel_nic.shared = &pf->hw.udp_tunnel_shared;
-	i = 0;
 	if (pf->hw.tnl.valid_count[TNL_VXLAN]) {
-		pf->hw.udp_tunnel_nic.tables[i].n_entries =
+		pf->hw.udp_tunnel_nic.tables[0].n_entries =
 			pf->hw.tnl.valid_count[TNL_VXLAN];
-		pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
+		pf->hw.udp_tunnel_nic.tables[0].tunnel_types =
 			UDP_TUNNEL_TYPE_VXLAN;
-		i++;
 	}
 	if (pf->hw.tnl.valid_count[TNL_GENEVE]) {
-		pf->hw.udp_tunnel_nic.tables[i].n_entries =
+		pf->hw.udp_tunnel_nic.tables[1].n_entries =
 			pf->hw.tnl.valid_count[TNL_GENEVE];
-		pf->hw.udp_tunnel_nic.tables[i].tunnel_types =
+		pf->hw.udp_tunnel_nic.tables[1].tunnel_types =
 			UDP_TUNNEL_TYPE_GENEVE;
-		i++;
-	}
-
-	pf->num_alloc_vsi = hw->func_caps.guar_num_vsi;
-	if (!pf->num_alloc_vsi) {
-		err = -EIO;
-		goto err_init_pf_unroll;
-	}
-	if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) {
-		dev_warn(&pf->pdev->dev,
-			 "limiting the VSI count due to UDP tunnel limitation %d > %d\n",
-			 pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES);
-		pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES;
-	}
-
-	pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi),
-			       GFP_KERNEL);
-	if (!pf->vsi) {
-		err = -ENOMEM;
-		goto err_init_pf_unroll;
-	}
-
-	pf->vsi_stats = devm_kcalloc(dev, pf->num_alloc_vsi,
-				     sizeof(*pf->vsi_stats), GFP_KERNEL);
-	if (!pf->vsi_stats) {
-		err = -ENOMEM;
-		goto err_init_vsi_unroll;
 	}
 
 	err = ice_init_interrupt_scheme(pf);
 	if (err) {
 		dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err);
 		err = -EIO;
-		goto err_init_vsi_stats_unroll;
+		goto err_init_interrupt_scheme;
 	}
 
 	/* In case of MSIX we are going to setup the misc vector right here
@@ -4786,49 +4697,94 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 	err = ice_req_irq_msix_misc(pf);
 	if (err) {
 		dev_err(dev, "setup of misc vector failed: %d\n", err);
-		goto err_init_interrupt_unroll;
+		goto err_req_irq_msix_misc;
 	}
 
-	/* create switch struct for the switch element created by FW on boot */
-	pf->first_sw = devm_kzalloc(dev, sizeof(*pf->first_sw), GFP_KERNEL);
-	if (!pf->first_sw) {
-		err = -ENOMEM;
-		goto err_msix_misc_unroll;
-	}
+	return 0;
 
-	if (hw->evb_veb)
-		pf->first_sw->bridge_mode = BRIDGE_MODE_VEB;
-	else
-		pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA;
+err_req_irq_msix_misc:
+	ice_clear_interrupt_scheme(pf);
+err_init_interrupt_scheme:
+	ice_deinit_pf(pf);
+err_init_pf:
+	ice_deinit_hw(hw);
+	return err;
+}
 
-	pf->first_sw->pf = pf;
+static void ice_deinit_dev(struct ice_pf *pf)
+{
+	ice_free_irq_msix_misc(pf);
+	ice_clear_interrupt_scheme(pf);
+	ice_deinit_pf(pf);
+	ice_deinit_hw(&pf->hw);
+}
 
-	/* record the sw_id available for later use */
-	pf->first_sw->sw_id = hw->port_info->sw_id;
+static void ice_init_features(struct ice_pf *pf)
+{
+	struct device *dev = ice_pf_to_dev(pf);
 
-	err = ice_setup_pf_sw(pf);
-	if (err) {
-		dev_err(dev, "probe failed due to setup PF switch: %d\n", err);
-		goto err_alloc_sw_unroll;
-	}
+	if (ice_is_safe_mode(pf))
+		return;
 
-	clear_bit(ICE_SERVICE_DIS, pf->state);
+	/* initialize DDP driven features */
+	if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
+		ice_ptp_init(pf);
 
-	/* tell the firmware we are up */
-	err = ice_send_version(pf);
-	if (err) {
-		dev_err(dev, "probe failed sending driver version %s. error: %d\n",
-			UTS_RELEASE, err);
-		goto err_send_version_unroll;
+	if (ice_is_feature_supported(pf, ICE_F_GNSS))
+		ice_gnss_init(pf);
+
+	/* Note: Flow director init failure is non-fatal to load */
+	if (ice_init_fdir(pf))
+		dev_err(dev, "could not initialize flow director\n");
+
+	/* Note: DCB init failure is non-fatal to load */
+	if (ice_init_pf_dcb(pf, false)) {
+		clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
+		clear_bit(ICE_FLAG_DCB_ENA, pf->flags);
+	} else {
+		ice_cfg_lldp_mib_change(&pf->hw, true);
 	}
 
-	/* since everything is good, start the service timer */
-	mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
+	if (ice_init_lag(pf))
+		dev_warn(dev, "Failed to init link aggregation support\n");
+}
+
+static void ice_deinit_features(struct ice_pf *pf)
+{
+	ice_deinit_lag(pf);
+	if (test_bit(ICE_FLAG_DCB_CAPABLE, pf->flags))
+		ice_cfg_lldp_mib_change(&pf->hw, false);
+	ice_deinit_fdir(pf);
+	if (ice_is_feature_supported(pf, ICE_F_GNSS))
+		ice_gnss_exit(pf);
+	if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
+		ice_ptp_release(pf);
+}
+
+static void ice_init_wakeup(struct ice_pf *pf)
+{
+	/* Save wakeup reason register for later use */
+	pf->wakeup_reason = rd32(&pf->hw, PFPM_WUS);
+
+	/* check for a power management event */
+	ice_print_wake_reason(pf);
+
+	/* clear wake status, all bits */
+	wr32(&pf->hw, PFPM_WUS, U32_MAX);
+
+	/* Disable WoL at init, wait for user to enable */
+	device_set_wakeup_enable(ice_pf_to_dev(pf), false);
+}
+
+static int ice_init_link(struct ice_pf *pf)
+{
+	struct device *dev = ice_pf_to_dev(pf);
+	int err;
 
 	err = ice_init_link_events(pf->hw.port_info);
 	if (err) {
 		dev_err(dev, "ice_init_link_events failed: %d\n", err);
-		goto err_send_version_unroll;
+		return err;
 	}
 
 	/* not a fatal error if this fails */
@@ -4864,108 +4820,345 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 		set_bit(ICE_FLAG_NO_MEDIA, pf->flags);
 	}
 
-	ice_verify_cacheline_size(pf);
+	return err;
+}
 
-	/* Save wakeup reason register for later use */
-	pf->wakeup_reason = rd32(hw, PFPM_WUS);
+static int ice_init_pf_sw(struct ice_pf *pf)
+{
+	bool dvm = ice_is_dvm_ena(&pf->hw);
+	struct ice_vsi *vsi;
+	int err;
 
-	/* check for a power management event */
-	ice_print_wake_reason(pf);
+	/* create switch struct for the switch element created by FW on boot */
+	pf->first_sw = kzalloc(sizeof(*pf->first_sw), GFP_KERNEL);
+	if (!pf->first_sw)
+		return -ENOMEM;
 
-	/* clear wake status, all bits */
-	wr32(hw, PFPM_WUS, U32_MAX);
+	if (pf->hw.evb_veb)
+		pf->first_sw->bridge_mode = BRIDGE_MODE_VEB;
+	else
+		pf->first_sw->bridge_mode = BRIDGE_MODE_VEPA;
 
-	/* Disable WoL at init, wait for user to enable */
-	device_set_wakeup_enable(dev, false);
+	pf->first_sw->pf = pf;
 
-	if (ice_is_safe_mode(pf)) {
-		ice_set_safe_mode_vlan_cfg(pf);
-		goto probe_done;
+	/* record the sw_id available for later use */
+	pf->first_sw->sw_id = pf->hw.port_info->sw_id;
+
+	err = ice_aq_set_port_params(pf->hw.port_info, dvm, NULL);
+	if (err)
+		goto err_aq_set_port_params;
+
+	vsi = ice_pf_vsi_setup(pf, pf->hw.port_info);
+	if (!vsi) {
+		err = -ENOMEM;
+		goto err_pf_vsi_setup;
 	}
 
-	/* initialize DDP driven features */
-	if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
-		ice_ptp_init(pf);
+	return 0;
 
-	if (ice_is_feature_supported(pf, ICE_F_GNSS))
-		ice_gnss_init(pf);
+err_pf_vsi_setup:
+err_aq_set_port_params:
+	kfree(pf->first_sw);
+	return err;
+}
 
-	/* Note: Flow director init failure is non-fatal to load */
-	if (ice_init_fdir(pf))
-		dev_err(dev, "could not initialize flow director\n");
+static void ice_deinit_pf_sw(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi = ice_get_main_vsi(pf);
 
-	/* Note: DCB init failure is non-fatal to load */
-	if (ice_init_pf_dcb(pf, false)) {
-		clear_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
-		clear_bit(ICE_FLAG_DCB_ENA, pf->flags);
-	} else {
-		ice_cfg_lldp_mib_change(&pf->hw, true);
+	if (!vsi)
+		return;
+
+	ice_vsi_release(vsi);
+	kfree(pf->first_sw);
+}
+
+static int ice_alloc_vsis(struct ice_pf *pf)
+{
+	struct device *dev = ice_pf_to_dev(pf);
+
+	pf->num_alloc_vsi = pf->hw.func_caps.guar_num_vsi;
+	if (!pf->num_alloc_vsi)
+		return -EIO;
+
+	if (pf->num_alloc_vsi > UDP_TUNNEL_NIC_MAX_SHARING_DEVICES) {
+		dev_warn(dev,
+			 "limiting the VSI count due to UDP tunnel limitation %d > %d\n",
+			 pf->num_alloc_vsi, UDP_TUNNEL_NIC_MAX_SHARING_DEVICES);
+		pf->num_alloc_vsi = UDP_TUNNEL_NIC_MAX_SHARING_DEVICES;
 	}
 
-	if (ice_init_lag(pf))
-		dev_warn(dev, "Failed to init link aggregation support\n");
+	pf->vsi = devm_kcalloc(dev, pf->num_alloc_vsi, sizeof(*pf->vsi),
+			       GFP_KERNEL);
+	if (!pf->vsi)
+		return -ENOMEM;
 
-	/* print PCI link speed and width */
-	pcie_print_link_status(pf->pdev);
+	pf->vsi_stats = devm_kcalloc(dev, pf->num_alloc_vsi,
+				     sizeof(*pf->vsi_stats), GFP_KERNEL);
+	if (!pf->vsi_stats) {
+		devm_kfree(dev, pf->vsi);
+		return -ENOMEM;
+	}
 
-probe_done:
-	err = ice_devlink_create_pf_port(pf);
+	return 0;
+}
+
+static void ice_dealloc_vsis(struct ice_pf *pf)
+{
+	devm_kfree(ice_pf_to_dev(pf), pf->vsi_stats);
+	pf->vsi_stats = NULL;
+
+	pf->num_alloc_vsi = 0;
+	devm_kfree(ice_pf_to_dev(pf), pf->vsi);
+	pf->vsi = NULL;
+}
+
+static int ice_init_devlink(struct ice_pf *pf)
+{
+	int err;
+
+	err = ice_devlink_register_params(pf);
 	if (err)
-		goto err_create_pf_port;
+		return err;
 
-	vsi = ice_get_main_vsi(pf);
-	if (!vsi || !vsi->netdev) {
-		err = -EINVAL;
-		goto err_netdev_reg;
-	}
+	ice_devlink_init_regions(pf);
+	ice_devlink_register(pf);
 
-	SET_NETDEV_DEVLINK_PORT(vsi->netdev, &pf->devlink_port);
+	return 0;
+}
+
+static void ice_deinit_devlink(struct ice_pf *pf)
+{
+	ice_devlink_unregister(pf);
+	ice_devlink_destroy_regions(pf);
+	ice_devlink_unregister_params(pf);
+}
 
-	err = ice_register_netdev(pf);
+static int ice_init(struct ice_pf *pf)
+{
+	int err;
+
+	err = ice_init_dev(pf);
 	if (err)
-		goto err_netdev_reg;
+		return err;
 
-	err = ice_devlink_register_params(pf);
+	err = ice_alloc_vsis(pf);
 	if (err)
-		goto err_netdev_reg;
+		goto err_alloc_vsis;
+
+	err = ice_init_pf_sw(pf);
+	if (err)
+		goto err_init_pf_sw;
+
+	ice_init_wakeup(pf);
+
+	err = ice_init_link(pf);
+	if (err)
+		goto err_init_link;
+
+	err = ice_send_version(pf);
+	if (err)
+		goto err_init_link;
+
+	ice_verify_cacheline_size(pf);
+
+	if (ice_is_safe_mode(pf))
+		ice_set_safe_mode_vlan_cfg(pf);
+	else
+		/* print PCI link speed and width */
+		pcie_print_link_status(pf->pdev);
 
 	/* ready to go, so clear down state bit */
 	clear_bit(ICE_DOWN, pf->state);
+	clear_bit(ICE_SERVICE_DIS, pf->state);
+
+	/* since everything is good, start the service timer */
+	mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
+
+	return 0;
+
+err_init_link:
+	ice_deinit_pf_sw(pf);
+err_init_pf_sw:
+	ice_dealloc_vsis(pf);
+err_alloc_vsis:
+	ice_deinit_dev(pf);
+	return err;
+}
+
+static void ice_deinit(struct ice_pf *pf)
+{
+	set_bit(ICE_SERVICE_DIS, pf->state);
+	set_bit(ICE_DOWN, pf->state);
+
+	ice_deinit_pf_sw(pf);
+	ice_dealloc_vsis(pf);
+	ice_deinit_dev(pf);
+}
+
+/**
+ * ice_load - load pf by init hw and starting VSI
+ * @pf: pointer to the pf instance
+ */
+int ice_load(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi;
+	int err;
+
+	err = ice_reset(&pf->hw, ICE_RESET_PFR);
+	if (err)
+		return err;
+
+	err = ice_init_dev(pf);
+	if (err)
+		return err;
+
+	vsi = ice_get_main_vsi(pf);
+	err = ice_vsi_cfg(vsi, NULL, NULL);
+	if (err)
+		goto err_vsi_cfg;
+
+	err = ice_start_eth(ice_get_main_vsi(pf));
+	if (err)
+		goto err_start_eth;
+
 	err = ice_init_rdma(pf);
+	if (err)
+		goto err_init_rdma;
+
+	ice_init_features(pf);
+	ice_service_task_restart(pf);
+
+	clear_bit(ICE_DOWN, pf->state);
+
+	return 0;
+
+err_init_rdma:
+	ice_vsi_close(ice_get_main_vsi(pf));
+err_start_eth:
+	ice_vsi_decfg(ice_get_main_vsi(pf));
+err_vsi_cfg:
+	ice_deinit_dev(pf);
+	return err;
+}
+
+/**
+ * ice_unload - unload pf by stopping VSI and deinit hw
+ * @pf: pointer to the pf instance
+ */
+void ice_unload(struct ice_pf *pf)
+{
+	ice_deinit_features(pf);
+	ice_deinit_rdma(pf);
+	ice_vsi_close(ice_get_main_vsi(pf));
+	ice_vsi_decfg(ice_get_main_vsi(pf));
+	ice_deinit_dev(pf);
+}
+
+/**
+ * ice_probe - Device initialization routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ice_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int
+ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
+{
+	struct device *dev = &pdev->dev;
+	struct ice_pf *pf;
+	struct ice_hw *hw;
+	int err;
+
+	if (pdev->is_virtfn) {
+		dev_err(dev, "can't probe a virtual function\n");
+		return -EINVAL;
+	}
+
+	/* this driver uses devres, see
+	 * Documentation/driver-api/driver-model/devres.rst
+	 */
+	err = pcim_enable_device(pdev);
+	if (err)
+		return err;
+
+	err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), dev_driver_string(dev));
 	if (err) {
-		dev_err(dev, "Failed to initialize RDMA: %d\n", err);
-		err = -EIO;
-		goto err_devlink_reg_param;
+		dev_err(dev, "BAR0 I/O map error %d\n", err);
+		return err;
 	}
 
-	ice_devlink_register(pf);
-	return 0;
+	pf = ice_allocate_pf(dev);
+	if (!pf)
+		return -ENOMEM;
 
-err_devlink_reg_param:
-	ice_devlink_unregister_params(pf);
-err_netdev_reg:
-	ice_devlink_destroy_pf_port(pf);
-err_create_pf_port:
-err_send_version_unroll:
-	ice_vsi_release_all(pf);
-err_alloc_sw_unroll:
-	set_bit(ICE_SERVICE_DIS, pf->state);
+	/* initialize Auxiliary index to invalid value */
+	pf->aux_idx = -1;
+
+	/* set up for high or low DMA */
+	err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(dev, "DMA configuration failed: 0x%x\n", err);
+		return err;
+	}
+
+	pci_set_master(pdev);
+
+	pf->pdev = pdev;
+	pci_set_drvdata(pdev, pf);
 	set_bit(ICE_DOWN, pf->state);
-	devm_kfree(dev, pf->first_sw);
-err_msix_misc_unroll:
-	ice_free_irq_msix_misc(pf);
-err_init_interrupt_unroll:
-	ice_clear_interrupt_scheme(pf);
-err_init_vsi_stats_unroll:
-	devm_kfree(dev, pf->vsi_stats);
-	pf->vsi_stats = NULL;
-err_init_vsi_unroll:
-	devm_kfree(dev, pf->vsi);
-err_init_pf_unroll:
-	ice_deinit_pf(pf);
-	ice_devlink_destroy_regions(pf);
-	ice_deinit_hw(hw);
-err_exit_unroll:
+	/* Disable service task until DOWN bit is cleared */
+	set_bit(ICE_SERVICE_DIS, pf->state);
+
+	hw = &pf->hw;
+	hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
+	pci_save_state(pdev);
+
+	hw->back = pf;
+	hw->port_info = NULL;
+	hw->vendor_id = pdev->vendor;
+	hw->device_id = pdev->device;
+	pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
+	hw->subsystem_vendor_id = pdev->subsystem_vendor;
+	hw->subsystem_device_id = pdev->subsystem_device;
+	hw->bus.device = PCI_SLOT(pdev->devfn);
+	hw->bus.func = PCI_FUNC(pdev->devfn);
+	ice_set_ctrlq_len(hw);
+
+	pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
+
+#ifndef CONFIG_DYNAMIC_DEBUG
+	if (debug < -1)
+		hw->debug_mask = debug;
+#endif
+
+	err = ice_init(pf);
+	if (err)
+		goto err_init;
+
+	err = ice_init_eth(pf);
+	if (err)
+		goto err_init_eth;
+
+	err = ice_init_rdma(pf);
+	if (err)
+		goto err_init_rdma;
+
+	err = ice_init_devlink(pf);
+	if (err)
+		goto err_init_devlink;
+
+	ice_init_features(pf);
+
+	return 0;
+
+err_init_devlink:
+	ice_deinit_rdma(pf);
+err_init_rdma:
+	ice_deinit_eth(pf);
+err_init_eth:
+	ice_deinit(pf);
+err_init:
 	pci_disable_device(pdev);
 	return err;
 }
@@ -5038,63 +5231,42 @@ static void ice_setup_mc_magic_wake(struct ice_pf *pf)
 static void ice_remove(struct pci_dev *pdev)
 {
 	struct ice_pf *pf = pci_get_drvdata(pdev);
-	struct ice_hw *hw;
 	int i;
 
-	hw = &pf->hw;
-
-	ice_devlink_unregister(pf);
 	for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {
 		if (!ice_is_reset_in_progress(pf->state))
 			break;
 		msleep(100);
 	}
 
-	ice_tc_indir_block_remove(pf);
-
 	if (test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) {
 		set_bit(ICE_VF_RESETS_DISABLED, pf->state);
 		ice_free_vfs(pf);
 	}
 
 	ice_service_task_stop(pf);
-
 	ice_aq_cancel_waiting_tasks(pf);
-	ice_deinit_rdma(pf);
-	ice_devlink_unregister_params(pf);
 	set_bit(ICE_DOWN, pf->state);
 
-	ice_deinit_lag(pf);
-	if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
-		ice_ptp_release(pf);
-	if (ice_is_feature_supported(pf, ICE_F_GNSS))
-		ice_gnss_exit(pf);
 	if (!ice_is_safe_mode(pf))
 		ice_remove_arfs(pf);
-	ice_setup_mc_magic_wake(pf);
+	ice_deinit_features(pf);
+	ice_deinit_devlink(pf);
+	ice_deinit_rdma(pf);
+	ice_deinit_eth(pf);
+	ice_deinit(pf);
+
 	ice_vsi_release_all(pf);
-	mutex_destroy(&hw->fdir_fltr_lock);
-	ice_devlink_destroy_pf_port(pf);
+
+	ice_setup_mc_magic_wake(pf);
 	ice_set_wake(pf);
-	ice_free_irq_msix_misc(pf);
-	ice_for_each_vsi(pf, i) {
-		if (!pf->vsi[i])
-			continue;
-		ice_vsi_free_q_vectors(pf->vsi[i]);
-	}
-	devm_kfree(&pdev->dev, pf->vsi_stats);
-	pf->vsi_stats = NULL;
-	ice_deinit_pf(pf);
-	ice_devlink_destroy_regions(pf);
-	ice_deinit_hw(hw);
 
 	/* Issue a PFR as part of the prescribed driver unload flow.  Do not
 	 * do it via ice_schedule_reset() since there is no need to rebuild
 	 * and the service task is already stopped.
 	 */
-	ice_reset(hw, ICE_RESET_PFR);
+	ice_reset(&pf->hw, ICE_RESET_PFR);
 	pci_wait_for_pending_transaction(pdev);
-	ice_clear_interrupt_scheme(pf);
 	pci_disable_device(pdev);
 }
 
-- 
2.38.1

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