From: Sachin Saxena <sachin.saxena@nxp.com>
Date: Mon, 28 May 2018 09:24:47 +0000 (+0530)
Subject: dpdk: set dmamap iova address value according to eal_iova_mode
X-Git-Tag: v18.07-rc1~272
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=d3b3baa4f8e9e4d95264aff16fe85434ef8061bd;p=vpp.git

dpdk: set dmamap iova address value according to eal_iova_mode

 - Fix the issue where eal iova mode is Virtual Address (RTE_IOVA_VA) but
   setting DMA iova address to Physical address value always.

Change-Id: Ib1e9c1596d95885c7eff11723338121627203e61
Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
---

diff --git a/src/plugins/dpdk/buffer.c b/src/plugins/dpdk/buffer.c
index 11d8cd7962b..59015ff7d3d 100644
--- a/src/plugins/dpdk/buffer.c
+++ b/src/plugins/dpdk/buffer.c
@@ -541,7 +541,10 @@ dpdk_pool_create (vlib_main_t * vm, u8 * pool_name, u32 elt_size,
 	{
 	  dm.vaddr = pointer_to_uword (pr->mem) + (i << pr->log2_page_size);
 	  dm.size = 1 << pr->log2_page_size;
-	  dm.iova = pr->page_table[i];
+	  if (rte_eal_iova_mode() == RTE_IOVA_PA)
+		  dm.iova = pr->page_table[i];
+	  else
+		  dm.iova = dm.vaddr;
 	  if ((rv = ioctl (dbm->vfio_container_fd, VFIO_IOMMU_MAP_DMA, &dm)))
 	    break;
 	}