diff options
Diffstat (limited to 'drivers/bus/pci/linux/pci.c')
| -rw-r--r-- | drivers/bus/pci/linux/pci.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c index 74deef3a..44440f22 100644 --- a/drivers/bus/pci/linux/pci.c +++ b/drivers/bus/pci/linux/pci.c @@ -43,6 +43,7 @@ #include <rte_devargs.h> #include <rte_memcpy.h> #include <rte_vfio.h> +#include <rte_memory.h> #include "eal_private.h" #include "eal_filesystem.h" @@ -582,7 +583,6 @@ pci_one_device_iommu_support_va(struct rte_pci_device *dev) { #define VTD_CAP_MGAW_SHIFT 16 #define VTD_CAP_MGAW_MASK (0x3fULL << VTD_CAP_MGAW_SHIFT) -#define X86_VA_WIDTH 47 /* From Documentation/x86/x86_64/mm.txt */ struct rte_pci_addr *addr = &dev->addr; char filename[PATH_MAX]; FILE *fp; @@ -613,10 +613,12 @@ pci_one_device_iommu_support_va(struct rte_pci_device *dev) fclose(fp); mgaw = ((vtd_cap_reg & VTD_CAP_MGAW_MASK) >> VTD_CAP_MGAW_SHIFT) + 1; - if (mgaw < X86_VA_WIDTH) + + if (!rte_eal_check_dma_mask(mgaw)) + return true; + else return false; - return true; } #elif defined(RTE_ARCH_PPC_64) static bool @@ -640,13 +642,17 @@ pci_devices_iommu_support_va(void) { struct rte_pci_device *dev = NULL; struct rte_pci_driver *drv = NULL; + int iommu_dma_mask_check_done = 0; FOREACH_DRIVER_ON_PCIBUS(drv) { FOREACH_DEVICE_ON_PCIBUS(dev) { if (!rte_pci_match(drv, dev)) continue; - if (!pci_one_device_iommu_support_va(dev)) - return false; + if (!iommu_dma_mask_check_done) { + if (!pci_one_device_iommu_support_va(dev)) + return false; + iommu_dma_mask_check_done = 1; + } } } return true; |