On 9/4/2017 7:17 PM, Markus Theil wrote:
> igb_uio already allocates irqs using pci_alloc_irq_vectors on
> recent kernels >= 4.8. The interrupt disable code was not
> using the corresponding pci_free_irq_vectors, but the also
> deprecated pci_disable_msix, before this fix.
>
> Fixes: 99bb58f3adc7 ("igb_uio: switch to new irq function for MSI-X")
> Cc: nicolas.dich...@6wind.com
>
> Signed-off-by: Markus Theil <markus.th...@tu-ilmenau.de>
<...>
> -#ifdef HAVE_PCI_ENABLE_MSIX
> +#ifndef HAVE_ALLOC_IRQ_VECTORS
> msix_entry.entry = 0;
> if (pci_enable_msix(udev->pdev, &msix_entry, 1) == 0) {
> dev_dbg(&udev->pdev->dev, "using MSI-X");
> - udev->info.irq_flags = IRQF_NO_THREAD;
This and below one [1] seems merge artifact, needs to be removed from
this patch.
> udev->info.irq = msix_entry.vector;
> udev->mode = RTE_INTR_MODE_MSIX;
> break;
> @@ -331,6 +330,7 @@ igbuio_pci_enable_interrupts(struct rte_uio_pci_dev *udev)
> #else
> if (pci_alloc_irq_vectors(udev->pdev, 1, 1, PCI_IRQ_MSIX) == 1)
> {
> dev_dbg(&udev->pdev->dev, "using MSI-X");
> + udev->info.irq_flags = IRQF_NO_THREAD;
[1]
> udev->info.irq = pci_irq_vector(udev->pdev, 0);
> udev->mode = RTE_INTR_MODE_MSIX;
> break;
<...>
