// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) /* Copyright(c) 2014 - 2020 Intel Corporation */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "adf_dh895xccvf_hw_data.h" static const struct pci_device_id adf_pci_tbl[] = { { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_QAT_DH895XCC_VF), }, { } }; MODULE_DEVICE_TABLE(pci, adf_pci_tbl); static int adf_probe(struct pci_dev *dev, const struct pci_device_id *ent); static void adf_remove(struct pci_dev *dev); static struct pci_driver adf_driver = { .id_table = adf_pci_tbl, .name = ADF_DH895XCCVF_DEVICE_NAME, .probe = adf_probe, .remove = adf_remove, }; static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev) { pci_release_regions(accel_dev->accel_pci_dev.pci_dev); pci_disable_device(accel_dev->accel_pci_dev.pci_dev); } static void adf_cleanup_accel(struct adf_accel_dev *accel_dev) { struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev; struct adf_accel_dev *pf; int i; for (i = 0; i < ADF_PCI_MAX_BARS; i++) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i]; if (bar->virt_addr) pci_iounmap(accel_pci_dev->pci_dev, bar->virt_addr); } if (accel_dev->hw_device) { switch (accel_pci_dev->pci_dev->device) { case PCI_DEVICE_ID_INTEL_QAT_DH895XCC_VF: adf_clean_hw_data_dh895xcciov(accel_dev->hw_device); break; default: break; } kfree(accel_dev->hw_device); accel_dev->hw_device = NULL; } adf_dbgfs_exit(accel_dev); adf_cfg_dev_remove(accel_dev); pf = adf_devmgr_pci_to_accel_dev(accel_pci_dev->pci_dev->physfn); adf_devmgr_rm_dev(accel_dev, pf); } static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct adf_accel_dev *accel_dev; struct adf_accel_dev *pf; struct adf_accel_pci *accel_pci_dev; struct adf_hw_device_data *hw_data; unsigned int i, bar_nr; unsigned long bar_mask; int ret; switch (ent->device) { case PCI_DEVICE_ID_INTEL_QAT_DH895XCC_VF: break; default: dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device); return -ENODEV; } accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!accel_dev) return -ENOMEM; accel_dev->is_vf = true; pf = adf_devmgr_pci_to_accel_dev(pdev->physfn); accel_pci_dev = &accel_dev->accel_pci_dev; accel_pci_dev->pci_dev = pdev; /* Add accel device to accel table */ if (adf_devmgr_add_dev(accel_dev, pf)) { dev_err(&pdev->dev, "Failed to add new accelerator device.\n"); kfree(accel_dev); return -EFAULT; } INIT_LIST_HEAD(&accel_dev->crypto_list); accel_dev->owner = THIS_MODULE; /* Allocate and configure device configuration structure */ hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!hw_data) { ret = -ENOMEM; goto out_err; } accel_dev->hw_device = hw_data; adf_init_hw_data_dh895xcciov(accel_dev->hw_device); /* Get Accelerators and Accelerators Engines masks */ hw_data->accel_mask = hw_data->get_accel_mask(hw_data); hw_data->ae_mask = hw_data->get_ae_mask(hw_data); accel_pci_dev->sku = hw_data->get_sku(hw_data); /* Create device configuration table */ ret = adf_cfg_dev_add(accel_dev); if (ret) goto out_err; /* enable PCI device */ if (pci_enable_device(pdev)) { ret = -EFAULT; goto out_err; } /* set dma identifier */ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48)); if (ret) { dev_err(&pdev->dev, "No usable DMA configuration\n"); goto out_err_disable; } if (pci_request_regions(pdev, ADF_DH895XCCVF_DEVICE_NAME)) { ret = -EFAULT; goto out_err_disable; } /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); if (!bar->base_addr) break; bar->size = pci_resource_len(pdev, bar_nr); bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0); if (!bar->virt_addr) { dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr); ret = -EFAULT; goto out_err_free_reg; } } pci_set_master(pdev); /* Completion for VF2PF request/response message exchange */ init_completion(&accel_dev->vf.msg_received); adf_dbgfs_init(accel_dev); ret = adf_dev_up(accel_dev, false); if (ret) goto out_err_dev_stop; return ret; out_err_dev_stop: adf_dev_down(accel_dev); out_err_free_reg: pci_release_regions(accel_pci_dev->pci_dev); out_err_disable: pci_disable_device(accel_pci_dev->pci_dev); out_err: adf_cleanup_accel(accel_dev); kfree(accel_dev); return ret; } static void adf_remove(struct pci_dev *pdev) { struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev); if (!accel_dev) { pr_err("QAT: Driver removal failed\n"); return; } adf_flush_vf_wq(accel_dev); adf_dev_down(accel_dev); adf_cleanup_accel(accel_dev); adf_cleanup_pci_dev(accel_dev); kfree(accel_dev); } static int __init adfdrv_init(void) { request_module("intel_qat"); if (pci_register_driver(&adf_driver)) { pr_err("QAT: Driver initialization failed\n"); return -EFAULT; } return 0; } static void __exit adfdrv_release(void) { pci_unregister_driver(&adf_driver); adf_clean_vf_map(true); } module_init(adfdrv_init); module_exit(adfdrv_release); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Intel"); MODULE_DESCRIPTION("Intel(R) QuickAssist Technology"); MODULE_VERSION(ADF_DRV_VERSION); MODULE_IMPORT_NS("CRYPTO_QAT");