X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinux%2Feal%2Feal_vfio.c;h=501c74f23d4acfd9361aed097cbee5a3df815fa3;hb=78a6d7ed19353310fc83e75742e9e73ae17c1719;hp=ed04231b1b342207e3a0b854a06868ed88a39f6a;hpb=b6719879855da581c4b6dc29680b54c10e109439;p=dpdk.git

diff --git a/lib/librte_eal/linux/eal/eal_vfio.c b/lib/librte_eal/linux/eal/eal_vfio.c
index ed04231b1b..501c74f23d 100644
--- a/lib/librte_eal/linux/eal/eal_vfio.c
+++ b/lib/librte_eal/linux/eal/eal_vfio.c
@@ -1231,6 +1231,19 @@ rte_vfio_get_group_num(const char *sysfs_base,
 	return 1;
 }
 
+static int
+type1_map_contig(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
+		size_t len, void *arg)
+{
+	int *vfio_container_fd = arg;
+
+	if (msl->external)
+		return 0;
+
+	return vfio_type1_dma_mem_map(*vfio_container_fd, ms->addr_64, ms->iova,
+			len, 1);
+}
+
 static int
 type1_map(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
 		void *arg)
@@ -1300,6 +1313,13 @@ vfio_type1_dma_mem_map(int vfio_container_fd, uint64_t vaddr, uint64_t iova,
 static int
 vfio_type1_dma_map(int vfio_container_fd)
 {
+	if (rte_eal_iova_mode() == RTE_IOVA_VA) {
+		/* with IOVA as VA mode, we can get away with mapping contiguous
+		 * chunks rather than going page-by-page.
+		 */
+		return rte_memseg_contig_walk(type1_map_contig,
+				&vfio_container_fd);
+	}
 	return rte_memseg_walk(type1_map, &vfio_container_fd);
 }