diff options
Diffstat (limited to 'lib/librte_eal/linuxapp/igb_uio/igb_uio.c')
| -rw-r--r-- | lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c index df41e457..9f00f07a 100644 --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c @@ -325,7 +325,9 @@ static int igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { struct rte_uio_pci_dev *udev; +#ifndef HAVE_ALLOC_IRQ_VECTORS struct msix_entry msix_entry; +#endif int err; udev = kzalloc(sizeof(struct rte_uio_pci_dev), GFP_KERNEL); @@ -379,6 +381,7 @@ igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) switch (igbuio_intr_mode_preferred) { case RTE_INTR_MODE_MSIX: /* Only 1 msi-x vector needed */ +#ifndef HAVE_ALLOC_IRQ_VECTORS msix_entry.entry = 0; if (pci_enable_msix(dev, &msix_entry, 1) == 0) { dev_dbg(&dev->dev, "using MSI-X"); @@ -386,6 +389,15 @@ igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) udev->mode = RTE_INTR_MODE_MSIX; break; } +#else + if (pci_alloc_irq_vectors(dev, 1, 1, PCI_IRQ_MSIX) == 1) { + dev_dbg(&dev->dev, "using MSI-X"); + udev->info.irq_flags = IRQF_NO_THREAD; + udev->info.irq = pci_irq_vector(dev, 0); + udev->mode = RTE_INTR_MODE_MSIX; + break; + } +#endif /* fall back to INTX */ case RTE_INTR_MODE_LEGACY: if (pci_intx_mask_supported(dev)) { @@ -429,8 +441,13 @@ fail_remove_group: sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp); fail_release_iomem: igbuio_pci_release_iomem(&udev->info); +#ifndef HAVE_ALLOC_IRQ_VECTORS if (udev->mode == RTE_INTR_MODE_MSIX) pci_disable_msix(udev->pdev); +#else + if (udev->mode == RTE_INTR_MODE_MSIX) + pci_free_irq_vectors(udev->pdev); +#endif pci_disable_device(dev); fail_free: kfree(udev); @@ -446,8 +463,13 @@ igbuio_pci_remove(struct pci_dev *dev) sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp); uio_unregister_device(&udev->info); igbuio_pci_release_iomem(&udev->info); +#ifndef HAVE_ALLOC_IRQ_VECTORS if (udev->mode == RTE_INTR_MODE_MSIX) pci_disable_msix(dev); +#else + if (udev->mode == RTE_INTR_MODE_MSIX) + pci_free_irq_vectors(dev); +#endif pci_disable_device(dev); pci_set_drvdata(dev, NULL); kfree(udev); |