[dpdk-dev] [PATCH v3 4/4] vfio: do not needlessly check for IOVA mode

[Anatoly Burakov <anatoly.burakov@intel.com>]

We already set IOVA addresses of memsegs and memzones to VA
address during initialization, so we don't need to check
whether we're in RTE_IOVA_VA mode anywhere else.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
---

Notes:
    v3:
    - Added missing ack by Santosh
    
    v2:
    - Added more detailed commit message

 lib/librte_eal/linuxapp/eal/eal_vfio.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.c b/lib/librte_eal/linuxapp/eal/eal_vfio.c
index e44ae4d..2421d51 100644
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.c
@@ -681,10 +681,7 @@ vfio_type1_dma_map(int vfio_container_fd)
 		dma_map.argsz = sizeof(struct vfio_iommu_type1_dma_map);
 		dma_map.vaddr = ms[i].addr_64;
 		dma_map.size = ms[i].len;
-		if (rte_eal_iova_mode() == RTE_IOVA_VA)
-			dma_map.iova = dma_map.vaddr;
-		else
-			dma_map.iova = ms[i].iova;
+		dma_map.iova = ms[i].iova;
 		dma_map.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE;
 
 		ret = ioctl(vfio_container_fd, VFIO_IOMMU_MAP_DMA, &dma_map);
@@ -784,10 +781,7 @@ vfio_spapr_dma_map(int vfio_container_fd)
 		dma_map.argsz = sizeof(struct vfio_iommu_type1_dma_map);
 		dma_map.vaddr = ms[i].addr_64;
 		dma_map.size = ms[i].len;
-		if (rte_eal_iova_mode() == RTE_IOVA_VA)
-			dma_map.iova = dma_map.vaddr;
-		else
-			dma_map.iova = ms[i].iova;
+		dma_map.iova = ms[i].iova;
 		dma_map.flags = VFIO_DMA_MAP_FLAG_READ |
 				 VFIO_DMA_MAP_FLAG_WRITE;
 
-- 
2.7.4