diff options
| -rw-r--r-- | src/vlib/linux/pci.c | 18 | ||||
| -rw-r--r-- | src/vlib/pci/pci.h | 3 |
2 files changed, 21 insertions, 0 deletions
diff --git a/src/vlib/linux/pci.c b/src/vlib/linux/pci.c index 28a5140f3eb..ec35adb1c37 100644 --- a/src/vlib/linux/pci.c +++ b/src/vlib/linux/pci.c @@ -173,6 +173,24 @@ vlib_pci_get_numa_node (vlib_main_t * vm, vlib_pci_dev_handle_t h) return d->numa_node; } +u32 +vlib_pci_get_num_msix_interrupts (vlib_main_t * vm, vlib_pci_dev_handle_t h) +{ + linux_pci_device_t *d = linux_pci_get_device (h); + + if (d->type == LINUX_PCI_DEVICE_TYPE_VFIO) + { + struct vfio_irq_info ii = { 0 }; + + ii.argsz = sizeof (struct vfio_irq_info); + ii.index = VFIO_PCI_MSIX_IRQ_INDEX; + if (ioctl (d->fd, VFIO_DEVICE_GET_IRQ_INFO, &ii) < 0) + return 0; + return ii.count; + } + return 0; +} + /* Call to allocate/initialize the pci subsystem. This is not an init function so that users can explicitly enable pci only when it's needed. */ diff --git a/src/vlib/pci/pci.h b/src/vlib/pci/pci.h index 71d4baedd20..d3b43ba8d90 100644 --- a/src/vlib/pci/pci.h +++ b/src/vlib/pci/pci.h @@ -103,6 +103,9 @@ vlib_pci_addr_t *vlib_pci_get_all_dev_addrs (); vlib_pci_addr_t *vlib_pci_get_addr (vlib_main_t * vm, vlib_pci_dev_handle_t h); u32 vlib_pci_get_numa_node (vlib_main_t * vm, vlib_pci_dev_handle_t h); +u32 vlib_pci_get_num_msix_interrupts (vlib_main_t * vm, + vlib_pci_dev_handle_t h); + uword vlib_pci_get_private_data (vlib_main_t * vm, vlib_pci_dev_handle_t h); void vlib_pci_set_private_data (vlib_main_t * vm, vlib_pci_dev_handle_t h, uword private_data); |