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216 lines
5.7 KiB
216 lines
5.7 KiB
// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB |
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/* Copyright (c) 2015 - 2021 Intel Corporation */ |
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#include "main.h" |
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#include "i40iw_hw.h" |
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#include <linux/net/intel/i40e_client.h> |
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static struct i40e_client i40iw_client; |
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/** |
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* i40iw_l2param_change - handle mss change |
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* @cdev_info: parent lan device information structure with data/ops |
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* @client: client for parameter change |
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* @params: new parameters from L2 |
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*/ |
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static void i40iw_l2param_change(struct i40e_info *cdev_info, |
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struct i40e_client *client, |
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struct i40e_params *params) |
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{ |
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struct irdma_l2params l2params = {}; |
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struct irdma_device *iwdev; |
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struct ib_device *ibdev; |
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ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA); |
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if (!ibdev) |
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return; |
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iwdev = to_iwdev(ibdev); |
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if (iwdev->vsi.mtu != params->mtu) { |
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l2params.mtu_changed = true; |
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l2params.mtu = params->mtu; |
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} |
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irdma_change_l2params(&iwdev->vsi, &l2params); |
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ib_device_put(ibdev); |
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} |
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/** |
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* i40iw_close - client interface operation close for iwarp/uda device |
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* @cdev_info: parent lan device information structure with data/ops |
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* @client: client to close |
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* @reset: flag to indicate close on reset |
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* |
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* Called by the lan driver during the processing of client unregister |
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* Destroy and clean up the driver resources |
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*/ |
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static void i40iw_close(struct i40e_info *cdev_info, struct i40e_client *client, |
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bool reset) |
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{ |
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struct irdma_device *iwdev; |
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struct ib_device *ibdev; |
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ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA); |
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if (WARN_ON(!ibdev)) |
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return; |
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iwdev = to_iwdev(ibdev); |
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if (reset) |
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iwdev->reset = true; |
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iwdev->iw_status = 0; |
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irdma_port_ibevent(iwdev); |
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ib_unregister_device_and_put(ibdev); |
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pr_debug("INIT: Gen1 PF[%d] close complete\n", PCI_FUNC(cdev_info->pcidev->devfn)); |
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} |
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static void i40iw_request_reset(struct irdma_pci_f *rf) |
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{ |
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struct i40e_info *cdev_info = rf->cdev; |
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cdev_info->ops->request_reset(cdev_info, &i40iw_client, 1); |
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} |
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static void i40iw_fill_device_info(struct irdma_device *iwdev, struct i40e_info *cdev_info) |
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{ |
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struct irdma_pci_f *rf = iwdev->rf; |
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rf->rdma_ver = IRDMA_GEN_1; |
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rf->gen_ops.request_reset = i40iw_request_reset; |
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rf->pcidev = cdev_info->pcidev; |
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rf->hw.hw_addr = cdev_info->hw_addr; |
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rf->cdev = cdev_info; |
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rf->msix_count = cdev_info->msix_count; |
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rf->msix_entries = cdev_info->msix_entries; |
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rf->limits_sel = 5; |
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rf->protocol_used = IRDMA_IWARP_PROTOCOL_ONLY; |
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rf->iwdev = iwdev; |
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iwdev->init_state = INITIAL_STATE; |
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iwdev->rcv_wnd = IRDMA_CM_DEFAULT_RCV_WND_SCALED; |
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iwdev->rcv_wscale = IRDMA_CM_DEFAULT_RCV_WND_SCALE; |
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iwdev->netdev = cdev_info->netdev; |
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iwdev->vsi_num = 0; |
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} |
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/** |
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* i40iw_open - client interface operation open for iwarp/uda device |
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* @cdev_info: parent lan device information structure with data/ops |
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* @client: iwarp client information, provided during registration |
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* |
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* Called by the lan driver during the processing of client register |
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* Create device resources, set up queues, pble and hmc objects and |
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* register the device with the ib verbs interface |
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* Return 0 if successful, otherwise return error |
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*/ |
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static int i40iw_open(struct i40e_info *cdev_info, struct i40e_client *client) |
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{ |
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struct irdma_l2params l2params = {}; |
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struct irdma_device *iwdev; |
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struct irdma_pci_f *rf; |
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int err = -EIO; |
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int i; |
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u16 qset; |
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u16 last_qset = IRDMA_NO_QSET; |
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iwdev = ib_alloc_device(irdma_device, ibdev); |
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if (!iwdev) |
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return -ENOMEM; |
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iwdev->rf = kzalloc(sizeof(*rf), GFP_KERNEL); |
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if (!iwdev->rf) { |
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ib_dealloc_device(&iwdev->ibdev); |
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return -ENOMEM; |
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} |
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i40iw_fill_device_info(iwdev, cdev_info); |
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rf = iwdev->rf; |
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if (irdma_ctrl_init_hw(rf)) { |
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err = -EIO; |
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goto err_ctrl_init; |
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} |
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l2params.mtu = (cdev_info->params.mtu) ? cdev_info->params.mtu : IRDMA_DEFAULT_MTU; |
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for (i = 0; i < I40E_CLIENT_MAX_USER_PRIORITY; i++) { |
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qset = cdev_info->params.qos.prio_qos[i].qs_handle; |
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l2params.up2tc[i] = cdev_info->params.qos.prio_qos[i].tc; |
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l2params.qs_handle_list[i] = qset; |
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if (last_qset == IRDMA_NO_QSET) |
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last_qset = qset; |
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else if ((qset != last_qset) && (qset != IRDMA_NO_QSET)) |
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iwdev->dcb = true; |
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} |
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if (irdma_rt_init_hw(iwdev, &l2params)) { |
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err = -EIO; |
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goto err_rt_init; |
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} |
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err = irdma_ib_register_device(iwdev); |
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if (err) |
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goto err_ibreg; |
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ibdev_dbg(&iwdev->ibdev, "INIT: Gen1 PF[%d] open success\n", |
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PCI_FUNC(rf->pcidev->devfn)); |
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return 0; |
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err_ibreg: |
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irdma_rt_deinit_hw(iwdev); |
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err_rt_init: |
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irdma_ctrl_deinit_hw(rf); |
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err_ctrl_init: |
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kfree(iwdev->rf); |
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ib_dealloc_device(&iwdev->ibdev); |
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return err; |
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} |
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/* client interface functions */ |
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static const struct i40e_client_ops i40e_ops = { |
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.open = i40iw_open, |
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.close = i40iw_close, |
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.l2_param_change = i40iw_l2param_change |
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}; |
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static struct i40e_client i40iw_client = { |
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.ops = &i40e_ops, |
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.type = I40E_CLIENT_IWARP, |
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}; |
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static int i40iw_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id) |
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{ |
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struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev, |
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struct i40e_auxiliary_device, |
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aux_dev); |
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struct i40e_info *cdev_info = i40e_adev->ldev; |
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strncpy(i40iw_client.name, "irdma", I40E_CLIENT_STR_LENGTH); |
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i40e_client_device_register(cdev_info, &i40iw_client); |
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return 0; |
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} |
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static void i40iw_remove(struct auxiliary_device *aux_dev) |
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{ |
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struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev, |
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struct i40e_auxiliary_device, |
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aux_dev); |
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struct i40e_info *cdev_info = i40e_adev->ldev; |
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return i40e_client_device_unregister(cdev_info); |
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} |
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static const struct auxiliary_device_id i40iw_auxiliary_id_table[] = { |
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{.name = "i40e.iwarp", }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(auxiliary, i40iw_auxiliary_id_table); |
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struct auxiliary_driver i40iw_auxiliary_drv = { |
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.name = "gen_1", |
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.id_table = i40iw_auxiliary_id_table, |
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.probe = i40iw_probe, |
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.remove = i40iw_remove, |
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};
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