diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/xen-pciback/conf_space_capability_msi.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/xen/xen-pciback/conf_space_capability_msi.c b/drivers/xen/xen-pciback/conf_space_capability_msi.c index d0d2255b5da..6e876b600e6 100644 --- a/drivers/xen/xen-pciback/conf_space_capability_msi.c +++ b/drivers/xen/xen-pciback/conf_space_capability_msi.c @@ -16,6 +16,9 @@ int pciback_enable_msi(struct pciback_device *pdev, int otherend = pdev->xdev->otherend_id; int status; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: enable MSI\n", pci_name(dev)); + status = pci_enable_msi(dev); if (status) { @@ -29,9 +32,14 @@ int pciback_enable_msi(struct pciback_device *pdev, * the local domain's IRQ number. */ op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: MSI: %d\n", pci_name(dev), + op->value); + dev_data = pci_get_drvdata(dev); if (dev_data) dev_data->ack_intr = 0; + return 0; } @@ -39,9 +47,16 @@ int pciback_disable_msi(struct pciback_device *pdev, struct pci_dev *dev, struct xen_pci_op *op) { struct pciback_dev_data *dev_data; + + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: disable MSI\n", pci_name(dev)); + pci_disable_msi(dev); op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: MSI: %d\n", pci_name(dev), + op->value); dev_data = pci_get_drvdata(dev); if (dev_data) dev_data->ack_intr = 1; @@ -55,6 +70,10 @@ int pciback_enable_msix(struct pciback_device *pdev, int i, result; struct msix_entry *entries; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: enable MSI-X\n", + pci_name(dev)); + if (op->value > SH_INFO_MAX_VEC) return -EINVAL; @@ -75,6 +94,11 @@ int pciback_enable_msix(struct pciback_device *pdev, if (entries[i].vector) op->msix_entries[i].vector = xen_pirq_from_irq(entries[i].vector); + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: " \ + "MSI-X[%d]: %d\n", + pci_name(dev), i, + op->msix_entries[i].vector); } } else { printk(KERN_WARNING "pciback: %s: failed to enable MSI-X: err %d!\n", @@ -95,6 +119,10 @@ int pciback_disable_msix(struct pciback_device *pdev, { struct pciback_dev_data *dev_data; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: disable MSI-X\n", + pci_name(dev)); + pci_disable_msix(dev); /* @@ -102,6 +130,9 @@ int pciback_disable_msix(struct pciback_device *pdev, * an undefined IRQ value of zero. */ op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0; + if (unlikely(verbose_request)) + printk(KERN_DEBUG "pciback: %s: MSI-X: %d\n", pci_name(dev), + op->value); dev_data = pci_get_drvdata(dev); if (dev_data) dev_data->ack_intr = 1; |