24 static void xen_pcibk_control_isr(struct pci_dev *dev, int reset)  in xen_pcibk_control_isr()  argument
30 	dev_data = pci_get_drvdata(dev);  in xen_pcibk_control_isr()
35 	if (dev->hdr_type != PCI_HEADER_TYPE_NORMAL)  in xen_pcibk_control_isr()
53 		dev_data->irq = dev->irq;  in xen_pcibk_control_isr()
62 	dev_dbg(&dev->dev, "%s: #%d %s %s%s %s-> %s\n",  in xen_pcibk_control_isr()
65 		pci_is_enabled(dev) ? "on" : "off",  in xen_pcibk_control_isr()
66 		dev->msi_enabled ? "MSI" : "",  in xen_pcibk_control_isr()
67 		dev->msix_enabled ? "MSI/X" : "",  in xen_pcibk_control_isr()
76 		if (dev->msi_enabled || dev->msix_enabled)  in xen_pcibk_control_isr()
81 				dev_data->irq_name, dev);  in xen_pcibk_control_isr()
83 			dev_err(&dev->dev, "%s: failed to install fake IRQ " \  in xen_pcibk_control_isr()
89 		free_irq(dev_data->irq, dev);  in xen_pcibk_control_isr()
95 	dev_dbg(&dev->dev, "%s: #%d %s %s%s %s\n",  in xen_pcibk_control_isr()
98 		pci_is_enabled(dev) ? "on" : "off",  in xen_pcibk_control_isr()
99 		dev->msi_enabled ? "MSI" : "",  in xen_pcibk_control_isr()
100 		dev->msix_enabled ? "MSI/X" : "",  in xen_pcibk_control_isr()
109 void xen_pcibk_reset_device(struct pci_dev *dev)  in xen_pcibk_reset_device()  argument
113 	xen_pcibk_control_isr(dev, 1 /* reset device */);  in xen_pcibk_reset_device()
116 	if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) {  in xen_pcibk_reset_device()
120 		if (dev->msix_enabled)  in xen_pcibk_reset_device()
121 			pci_disable_msix(dev);  in xen_pcibk_reset_device()
122 		if (dev->msi_enabled)  in xen_pcibk_reset_device()
123 			pci_disable_msi(dev);  in xen_pcibk_reset_device()
125 		if (pci_is_enabled(dev))  in xen_pcibk_reset_device()
126 			pci_disable_device(dev);  in xen_pcibk_reset_device()
128 		dev->is_busmaster = 0;  in xen_pcibk_reset_device()
130 		pci_read_config_word(dev, PCI_COMMAND, &cmd);  in xen_pcibk_reset_device()
133 			pci_write_config_word(dev, PCI_COMMAND, cmd);  in xen_pcibk_reset_device()
135 			dev->is_busmaster = 0;  in xen_pcibk_reset_device()
143 			 struct pci_dev *dev, struct xen_pci_op *op)  in xen_pcibk_enable_msi()  argument
148 	if (dev->msi_enabled)  in xen_pcibk_enable_msi()
150 	else if (dev->msix_enabled)  in xen_pcibk_enable_msi()
153 		status = pci_enable_msi(dev);  in xen_pcibk_enable_msi()
156 		dev_warn_ratelimited(&dev->dev, "error enabling MSI for guest %u: err %d\n",  in xen_pcibk_enable_msi()
165 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;  in xen_pcibk_enable_msi()
167 	dev_dbg(&dev->dev, "MSI: %d\n", op->value);  in xen_pcibk_enable_msi()
169 	dev_data = pci_get_drvdata(dev);  in xen_pcibk_enable_msi()
178 			  struct pci_dev *dev, struct xen_pci_op *op)  in xen_pcibk_disable_msi()  argument
180 	if (dev->msi_enabled) {  in xen_pcibk_disable_msi()
183 		pci_disable_msi(dev);  in xen_pcibk_disable_msi()
185 		dev_data = pci_get_drvdata(dev);  in xen_pcibk_disable_msi()
189 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;  in xen_pcibk_disable_msi()
191 	dev_dbg(&dev->dev, "MSI: %d\n", op->value);  in xen_pcibk_disable_msi()
198 			  struct pci_dev *dev, struct xen_pci_op *op)  in xen_pcibk_enable_msix()  argument
205 	dev_dbg(&dev->dev, "enable MSI-X\n");  in xen_pcibk_enable_msix()
210 	if (dev->msix_enabled)  in xen_pcibk_enable_msix()
218 	pci_read_config_word(pci_physfn(dev), PCI_COMMAND, &cmd);  in xen_pcibk_enable_msix()
219 	if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY))  in xen_pcibk_enable_msix()
231 	result = pci_enable_msix_exact(dev, entries, op->value);  in xen_pcibk_enable_msix()
238 				dev_dbg(&dev->dev, "MSI-X[%d]: %d\n", i,  in xen_pcibk_enable_msix()
243 		dev_warn_ratelimited(&dev->dev, "error enabling MSI-X for guest %u: err %d!\n",  in xen_pcibk_enable_msix()
248 	dev_data = pci_get_drvdata(dev);  in xen_pcibk_enable_msix()
257 			   struct pci_dev *dev, struct xen_pci_op *op)  in xen_pcibk_disable_msix()  argument
259 	if (dev->msix_enabled) {  in xen_pcibk_disable_msix()
262 		pci_disable_msix(dev);  in xen_pcibk_disable_msix()
264 		dev_data = pci_get_drvdata(dev);  in xen_pcibk_disable_msix()
272 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;  in xen_pcibk_disable_msix()
274 	dev_dbg(&dev->dev, "MSI-X: %d\n", op->value);  in xen_pcibk_disable_msix()
323 	struct pci_dev *dev;  in xen_pcibk_do_one_op()  local
333 	dev = xen_pcibk_get_pci_dev(pdev, op->domain, op->bus, op->devfn);  in xen_pcibk_do_one_op()
335 	if (dev == NULL)  in xen_pcibk_do_one_op()
338 		dev_data = pci_get_drvdata(dev);  in xen_pcibk_do_one_op()
343 			op->err = xen_pcibk_config_read(dev,  in xen_pcibk_do_one_op()
347 			op->err = xen_pcibk_config_write(dev,  in xen_pcibk_do_one_op()
352 			op->err = xen_pcibk_enable_msi(pdev, dev, op);  in xen_pcibk_do_one_op()
355 			op->err = xen_pcibk_disable_msi(pdev, dev, op);  in xen_pcibk_do_one_op()
359 			op->err = xen_pcibk_enable_msix(pdev, dev, op);  in xen_pcibk_do_one_op()
362 			op->err = xen_pcibk_disable_msix(pdev, dev, op);  in xen_pcibk_do_one_op()
370 	if (!op->err && dev && dev_data) {  in xen_pcibk_do_one_op()
373 			xen_pcibk_control_isr(dev, 0 /* no reset */);  in xen_pcibk_do_one_op()
427 	struct pci_dev *dev = (struct pci_dev *)dev_id;  in xen_pcibk_guest_interrupt()  local
428 	struct xen_pcibk_dev_data *dev_data = pci_get_drvdata(dev);  in xen_pcibk_guest_interrupt()
434 				dev_info(&dev->dev, "%s IRQ line is not shared "  in xen_pcibk_guest_interrupt()