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misc: bcm-vk: Specify the minimum number of IRQ vecs 

During bcm_vk_probe(), pci_alloc_irq_vectors() is called passing the
number of IRQ vectors as 1, but, later, check how many IRQ vectors it
got, and fails if it is smaller than VK_MSIX_IRQ_MIN_REQ.

The most appropriated way to do it is setting the 'min_vecs' param as
VK_MSIX_IRQ_MIN_REQ, instead of one. pci_alloc_irq_vectors() should
know the requirements when called.

The test was done by just loading this module on a machine with a
Valkyrie offload engine hardware.

Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20220812094011.4064729-1-leitao@debian.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Breno Leitao 2022-08-12 02:40:11 -07:00 committed by Greg Kroah-Hartman
parent 9d64d2405f
commit fccf202e01
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/bcm-vk/bcm_vk_dev.c
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@ -1339,7 +1339,7 @@ static int bcm_vk_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_drvdata(pdev, vk);
irq = pci_alloc_irq_vectors(pdev,
1,
VK_MSIX_IRQ_MIN_REQ,
VK_MSIX_IRQ_MAX,
PCI_IRQ_MSI | PCI_IRQ_MSIX);