[PATCH v4 04/19] drivers: add process-type guards for secondary process

[Hemant Agrawal]

From: Prashant Gupta <prashant.gupta_3 at nxp.com>

Add RTE_PROC_PRIMARY checks in device initialization paths for
net/dpaa, crypto/dpaa_sec and dma/dpaa drivers. Secondary
processes should skip hardware initialization to prevent
segfaults when accessing hardware registers that are only
mapped in the primary process.

Signed-off-by: Prashant Gupta <prashant.gupta_3 at nxp.com>
---
 drivers/crypto/dpaa_sec/dpaa_sec.c |  3 ---
 drivers/dma/dpaa/dpaa_qdma.c       | 23 +++++++++++++++++++++++
 drivers/net/dpaa/dpaa_ethdev.c     |  3 +++
 3 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index 65bbd38b17..36f5819b0e 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -3783,9 +3783,6 @@ cryptodev_dpaa_sec_probe(struct rte_dpaa_driver *dpaa_drv __rte_unused,
 			RTE_DPAA_MAX_NB_SEC_QPS,
 	};
 
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
-		return 0;
-
 	snprintf(cryptodev_name, sizeof(cryptodev_name), "%s", dpaa_dev->name);
 
 	cryptodev = rte_cryptodev_pmd_create(cryptodev_name, &dpaa_dev->device, &init_params);
diff --git a/drivers/dma/dpaa/dpaa_qdma.c b/drivers/dma/dpaa/dpaa_qdma.c
index 74e23d2ee5..af6083d2fe 100644
--- a/drivers/dma/dpaa/dpaa_qdma.c
+++ b/drivers/dma/dpaa/dpaa_qdma.c
@@ -1330,11 +1330,34 @@ dpaa_qdma_init(struct rte_dma_dev *dmadev)
 	int ret;
 	uint32_t i, j, k;
 
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return -ENOTSUP;
+
 	if (dpaa_get_devargs(dmadev->device->devargs, DPAA_DMA_ERROR_CHECK)) {
 		s_hw_err_check = true;
 		DPAA_QDMA_INFO("Enable DMA error checks");
 	}
 
+	if (getenv("DPAA_QDMA_DATA_VALIDATION"))
+		s_data_validation = 1;
+
+	if (getenv("DPAA_QDMA_HW_ERR_CHECK"))
+		s_hw_err_check = 1;
+
+	char *penv = getenv("DPAA_QDMA_SG_ENABLE");
+	if (penv)
+		s_sg_enable = atoi(penv);
+
+	penv = getenv("DPAA_QDMA_SG_MAX_ENTRY_SIZE");
+	if (penv)
+		s_sg_max_entry_sz = atoi(penv);
+
+#ifdef RTE_DMA_DPAA_ERRATA_ERR050757
+	penv = getenv("DPAA_QDMA_PCI_READ");
+	if (penv)
+		s_pci_read = atoi(penv);
+#endif
+
 	fsl_qdma->n_queues = QDMA_QUEUES * QDMA_BLOCKS;
 	fsl_qdma->num_blocks = QDMA_BLOCKS;
 	fsl_qdma->block_offset = QDMA_BLOCK_OFFSET;
diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
index 8fb2e33e0a..42ab9679d1 100644
--- a/drivers/net/dpaa/dpaa_ethdev.c
+++ b/drivers/net/dpaa/dpaa_ethdev.c
@@ -2686,6 +2686,9 @@ rte_dpaa_remove(struct rte_dpaa_device *dpaa_dev)
 
 	PMD_INIT_FUNC_TRACE();
 
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
 	eth_dev = dpaa_dev->eth_dev;
 	dpaa_eth_dev_close(eth_dev);
 	ret = rte_eth_dev_release_port(eth_dev);
-- 
2.25.1