[dpdk-dev] [PATCH v2 26/30] bus/fslmc: check for Dma map in primary process only

[Sachin Saxena]

From: Shreyansh Jain <shreyansh.j...@nxp.com>

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.j...@nxp.com>
Reviewed-by: Sachin Saxena <sachin.sax...@nxp.com>
---
 drivers/bus/fslmc/fslmc_bus.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
index aa90d686f..9226d5b62 100644
--- a/drivers/bus/fslmc/fslmc_bus.c
+++ b/drivers/bus/fslmc/fslmc_bus.c
@@ -395,12 +395,15 @@ 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();
-- 
2.17.1