From: Shreyansh Jain <shreyansh.jain@nxp.com>
Date: Thu, 29 Aug 2019 10:27:33 +0000 (+0530)
Subject: bus/fslmc: check for DMA map in primary process only
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4512386f2a27281777a6f5b87d6d852ae8c93153;p=dpdk.git

bus/fslmc: check for DMA map in primary process only

DMA mapping is a property of primary process - SMMU population done
once by primary doesn't need to be populated again in secondary

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Reviewed-by: Sachin Saxena <sachin.saxena@nxp.com>
---

diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
index 8c155ac688..e3f524844d 100644
--- a/drivers/bus/fslmc/fslmc_bus.c
+++ b/drivers/bus/fslmc/fslmc_bus.c
@@ -394,12 +394,15 @@ rte_fslmc_probe(void)
 	/* Map existing segments as well as, in case of hotpluggable memory,
 	 * install callback handler.
 	 */
-	ret = rte_fslmc_vfio_dmamap();
-	if (ret) {
-		DPAA2_BUS_ERR("Unable to DMA map existing VAs: (%d)", ret);
-		/* Not continuing ahead */
-		DPAA2_BUS_ERR("FSLMC VFIO Mapping failed");
-		return 0;
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		ret = rte_fslmc_vfio_dmamap();
+		if (ret) {
+			DPAA2_BUS_ERR("Unable to DMA map existing VAs: (%d)",
+				      ret);
+			/* Not continuing ahead */
+			DPAA2_BUS_ERR("FSLMC VFIO Mapping failed");
+			return 0;
+		}
 	}
 
 	ret = fslmc_vfio_process_group();