diff options
Diffstat (limited to 'drivers/pci/switch')
| -rw-r--r-- | drivers/pci/switch/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pci/switch/switchtec.c | 12 |
2 files changed, 11 insertions, 3 deletions
diff --git a/drivers/pci/switch/Kconfig b/drivers/pci/switch/Kconfig index aee28a5bb98f..d370f4ce0492 100644 --- a/drivers/pci/switch/Kconfig +++ b/drivers/pci/switch/Kconfig @@ -9,7 +9,7 @@ config PCI_SW_SWITCHTEC Enables support for the management interface for the MicroSemi Switchtec series of PCIe switches. Supports userspace access to submit MRPC commands to the switch via /dev/switchtecX - devices. See <file:Documentation/switchtec.txt> for more + devices. See <file:Documentation/driver-api/switchtec.rst> for more information. endmenu diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index bebbde4ebec0..8c94cd3fd1f2 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -30,6 +30,10 @@ module_param(use_dma_mrpc, bool, 0644); MODULE_PARM_DESC(use_dma_mrpc, "Enable the use of the DMA MRPC feature"); +static int nirqs = 32; +module_param(nirqs, int, 0644); +MODULE_PARM_DESC(nirqs, "number of interrupts to allocate (more may be useful for NTB applications)"); + static dev_t switchtec_devt; static DEFINE_IDA(switchtec_minor_ida); @@ -1263,8 +1267,12 @@ static int switchtec_init_isr(struct switchtec_dev *stdev) int dma_mrpc_irq; int rc; - nvecs = pci_alloc_irq_vectors(stdev->pdev, 1, 4, - PCI_IRQ_MSIX | PCI_IRQ_MSI); + if (nirqs < 4) + nirqs = 4; + + nvecs = pci_alloc_irq_vectors(stdev->pdev, 1, nirqs, + PCI_IRQ_MSIX | PCI_IRQ_MSI | + PCI_IRQ_VIRTUAL); if (nvecs < 0) return nvecs; |
