> vfio_pci_mmap() try to map all pci bars. ioport region are not mapped in
> vfio/kernel so ignore mmaping for ioport.
>
> Signed-off-by: Santosh Shukla <sshukla at mvista.com>
> ---
> lib/librte_eal/linuxapp/eal/eal_pci_vfio.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
> b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
> index ffa2dd0..4832313 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
> @@ -659,6 +659,7 @@ pci_vfio_map_resource(struct rte_pci_device *dev)
> struct pci_map *maps;
> uint32_t msix_table_offset = 0;
> uint32_t msix_table_size = 0;
> + uint32_t ioport_bar;
>
> dev->intr_handle.fd = -1;
> dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; @@ -853,6
> +854,25 @@ pci_vfio_map_resource(struct rte_pci_device *dev)
> return -1;
> }
>
> + /* chk for io port region */
> + ret = pread64(vfio_dev_fd, &ioport_bar, sizeof(ioport_bar),
> +
> VFIO_GET_REGION_ADDR(VFIO_PCI_CONFIG_REGION_INDEX)
> + + PCI_BASE_ADDRESS_0 + i*4);
> +
> + if (ret != sizeof(ioport_bar)) {
> + RTE_LOG(ERR, EAL,
> + "Cannot read command (%x) from config
> space!\n",
> + PCI_BASE_ADDRESS_0 + i*4);
> + return -1;
> + }
> +
> + if (ioport_bar & PCI_BASE_ADDRESS_SPACE_IO) {
> + RTE_LOG(INFO, EAL,
> + "Ignore mapping IO port bar(%d) addr:
> %x\n",
> + i, ioport_bar);
> + continue;
> + }
> +
> /* skip non-mmapable BARs */
> if ((reg.flags & VFIO_REGION_INFO_FLAG_MMAP) == 0)
> continue;
> --
> 1.7.9.5
Acked-by: Anatoly Burakov <anatoly.burakov at intel.com>
