42 static int cci_pci_alloc_irq(struct pci_dev *pcidev)  in cci_pci_alloc_irq()  argument
44 	int ret, nvec = pci_msix_vec_count(pcidev);  in cci_pci_alloc_irq()
47 		dev_dbg(&pcidev->dev, "fpga interrupt not supported\n");  in cci_pci_alloc_irq()
51 	ret = pci_alloc_irq_vectors(pcidev, nvec, nvec, PCI_IRQ_MSIX);  in cci_pci_alloc_irq()
58 static void cci_pci_free_irq(struct pci_dev *pcidev)  in cci_pci_free_irq()  argument
60 	pci_free_irq_vectors(pcidev);  in cci_pci_free_irq()
115 static int cci_init_drvdata(struct pci_dev *pcidev)  in cci_init_drvdata()  argument
119 	drvdata = devm_kzalloc(&pcidev->dev, sizeof(*drvdata), GFP_KERNEL);  in cci_init_drvdata()
123 	pci_set_drvdata(pcidev, drvdata);  in cci_init_drvdata()
128 static void cci_remove_feature_devs(struct pci_dev *pcidev)  in cci_remove_feature_devs()  argument
130 	struct cci_drvdata *drvdata = pci_get_drvdata(pcidev);  in cci_remove_feature_devs()
134 	cci_pci_free_irq(pcidev);  in cci_remove_feature_devs()
137 static int *cci_pci_create_irq_table(struct pci_dev *pcidev, unsigned int nvec)  in cci_pci_create_irq_table()  argument
147 		table[i] = pci_irq_vector(pcidev, i);  in cci_pci_create_irq_table()
152 static int find_dfls_by_vsec(struct pci_dev *pcidev, struct dfl_fpga_enum_info *info)  in find_dfls_by_vsec()  argument
158 	voff = pci_find_vsec_capability(pcidev, PCI_VENDOR_ID_INTEL,  in find_dfls_by_vsec()
161 		dev_dbg(&pcidev->dev, "%s no DFL VSEC found\n", __func__);  in find_dfls_by_vsec()
166 	pci_read_config_dword(pcidev, voff + PCI_VNDR_DFLS_CNT, &dfl_cnt);  in find_dfls_by_vsec()
168 		dev_err(&pcidev->dev, "%s too many DFLs %d > %d\n",  in find_dfls_by_vsec()
175 		dev_err(&pcidev->dev, "%s DFL VSEC too big for PCIe config space\n",  in find_dfls_by_vsec()
182 		pci_read_config_dword(pcidev, dfl_res_off, &dfl_res);  in find_dfls_by_vsec()
186 			dev_err(&pcidev->dev, "%s bad bir number %d\n",  in find_dfls_by_vsec()
192 			dev_err(&pcidev->dev, "%s DFL for BAR %d already specified\n",  in find_dfls_by_vsec()
199 		len = pci_resource_len(pcidev, bir);  in find_dfls_by_vsec()
202 			dev_err(&pcidev->dev, "%s bad offset %u >= %pa\n",  in find_dfls_by_vsec()
207 		dev_dbg(&pcidev->dev, "%s BAR %d offset 0x%x\n", __func__, bir, offset);  in find_dfls_by_vsec()
211 		start = pci_resource_start(pcidev, bir) + offset;  in find_dfls_by_vsec()
220 static int find_dfls_by_default(struct pci_dev *pcidev,  in find_dfls_by_default()  argument
230 	base = pcim_iomap_region(pcidev, 0, DRV_NAME);  in find_dfls_by_default()
240 		start = pci_resource_start(pcidev, 0);  in find_dfls_by_default()
241 		len = pci_resource_len(pcidev, 0);  in find_dfls_by_default()
270 				dev_err(&pcidev->dev, "bad BAR %d for port %d\n",  in find_dfls_by_default()
276 			start = pci_resource_start(pcidev, bar) + offset;  in find_dfls_by_default()
277 			len = pci_resource_len(pcidev, bar) - offset;  in find_dfls_by_default()
282 		start = pci_resource_start(pcidev, 0);  in find_dfls_by_default()
283 		len = pci_resource_len(pcidev, 0);  in find_dfls_by_default()
291 	pcim_iounmap_region(pcidev, 0);  in find_dfls_by_default()
297 static int cci_enumerate_feature_devs(struct pci_dev *pcidev)  in cci_enumerate_feature_devs()  argument
299 	struct cci_drvdata *drvdata = pci_get_drvdata(pcidev);  in cci_enumerate_feature_devs()
306 	info = dfl_fpga_enum_info_alloc(&pcidev->dev);  in cci_enumerate_feature_devs()
311 	nvec = cci_pci_alloc_irq(pcidev);  in cci_enumerate_feature_devs()
313 		dev_err(&pcidev->dev, "Fail to alloc irq %d.\n", nvec);  in cci_enumerate_feature_devs()
317 		irq_table = cci_pci_create_irq_table(pcidev, nvec);  in cci_enumerate_feature_devs()
329 	ret = find_dfls_by_vsec(pcidev, info);  in cci_enumerate_feature_devs()
331 		ret = find_dfls_by_default(pcidev, info);  in cci_enumerate_feature_devs()
339 		dev_err(&pcidev->dev, "Enumeration failure\n");  in cci_enumerate_feature_devs()
348 		cci_pci_free_irq(pcidev);  in cci_enumerate_feature_devs()
356 int cci_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *pcidevid)  in cci_pci_probe()  argument
360 	ret = pcim_enable_device(pcidev);  in cci_pci_probe()
362 		dev_err(&pcidev->dev, "Failed to enable device %d.\n", ret);  in cci_pci_probe()
366 	pci_set_master(pcidev);  in cci_pci_probe()
368 	ret = dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(64));  in cci_pci_probe()
370 		ret = dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(32));  in cci_pci_probe()
372 		dev_err(&pcidev->dev, "No suitable DMA support available.\n");  in cci_pci_probe()
376 	ret = cci_init_drvdata(pcidev);  in cci_pci_probe()
378 		dev_err(&pcidev->dev, "Fail to init drvdata %d.\n", ret);  in cci_pci_probe()
382 	ret = cci_enumerate_feature_devs(pcidev);  in cci_pci_probe()
384 		dev_err(&pcidev->dev, "enumeration failure %d.\n", ret);  in cci_pci_probe()
391 static int cci_pci_sriov_configure(struct pci_dev *pcidev, int num_vfs)  in cci_pci_sriov_configure()  argument
393 	struct cci_drvdata *drvdata = pci_get_drvdata(pcidev);  in cci_pci_sriov_configure()
401 		pci_disable_sriov(pcidev);  in cci_pci_sriov_configure()
416 		ret = pci_enable_sriov(pcidev, num_vfs);  in cci_pci_sriov_configure()
426 static void cci_pci_remove(struct pci_dev *pcidev)  in cci_pci_remove()  argument
428 	if (dev_is_pf(&pcidev->dev))  in cci_pci_remove()
429 		cci_pci_sriov_configure(pcidev, 0);  in cci_pci_remove()
431 	cci_remove_feature_devs(pcidev);  in cci_pci_remove()