[dpdk-dev] [PATCH v8 12/13] bus/fslmc: share mcp ptr as function across libs

[Hemant Agrawal <hemant.agrawal@nxp.com>]

Currently rte_mcp_ptr_list is being shared as a variable
across libs. This is only used in control path.
This patch change it to a exported function based access.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/bus/fslmc/fslmc_vfio.c              | 15 ++++++++++++---
 drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c    |  2 +-
 drivers/bus/fslmc/portal/dpaa2_hw_dpci.c    |  2 +-
 drivers/bus/fslmc/portal/dpaa2_hw_dpio.c    |  2 +-
 drivers/bus/fslmc/portal/dpaa2_hw_pvt.h     |  7 ++++---
 drivers/bus/fslmc/rte_bus_fslmc_version.map |  2 +-
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c |  2 +-
 drivers/event/dpaa2/dpaa2_hw_dpcon.c        |  2 +-
 drivers/net/dpaa2/dpaa2_ethdev.c            |  2 +-
 drivers/net/dpaa2/dpaa2_mux.c               |  2 +-
 drivers/net/dpaa2/dpaa2_ptp.c               |  2 +-
 drivers/raw/dpaa2_qdma/dpaa2_qdma.c         |  2 +-
 12 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 970969d2bf..efe2c43d37 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -51,6 +51,15 @@ static int fslmc_iommu_type;
 static uint32_t *msi_intr_vaddr;
 void *(*rte_mcp_ptr_list);
 
+void *
+dpaa2_get_mcp_ptr(int portal_idx)
+{
+	if (rte_mcp_ptr_list)
+		return rte_mcp_ptr_list[portal_idx];
+	else
+		return NULL;
+}
+
 static struct rte_dpaa2_object_list dpaa2_obj_list =
 	TAILQ_HEAD_INITIALIZER(dpaa2_obj_list);
 
@@ -734,7 +743,7 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 	struct fsl_mc_io dpmng  = {0};
 	struct mc_version mc_ver_info = {0};
 
-	rte_mcp_ptr_list = malloc(sizeof(void *) * 1);
+	rte_mcp_ptr_list = malloc(sizeof(void *) * (MC_PORTAL_INDEX + 1));
 	if (!rte_mcp_ptr_list) {
 		DPAA2_BUS_ERR("Unable to allocate MC portal memory");
 		ret = -ENOMEM;
@@ -762,7 +771,7 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 	 * required.
 	 */
 	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
-		rte_mcp_ptr_list[0] = (void *)v_addr;
+		rte_mcp_ptr_list[MC_PORTAL_INDEX] = (void *)v_addr;
 		return 0;
 	}
 
@@ -782,7 +791,7 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 		ret = -1;
 		goto cleanup;
 	}
-	rte_mcp_ptr_list[0] = (void *)v_addr;
+	rte_mcp_ptr_list[MC_PORTAL_INDEX] = (void *)v_addr;
 
 	free(dev_name);
 	return 0;
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
index db49d637f5..79b148f20b 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
@@ -56,7 +56,7 @@ dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
 	}
 
 	/* Open the dpbp object */
-	dpbp_node->dpbp.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpbp_node->dpbp.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dpbp_open(&dpbp_node->dpbp,
 			CMD_PRI_LOW, dpbp_id, &dpbp_node->token);
 	if (ret) {
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
index 5ad0374df9..d393ce6186 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
@@ -50,7 +50,7 @@ rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
 	}
 
 	/* Open the dpci object */
-	dpci_node->dpci.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpci_node->dpci.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dpci_open(&dpci_node->dpci,
 			CMD_PRI_LOW, dpci_id, &dpci_node->token);
 	if (ret) {
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
index 739ce434ba..21c535f2fb 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
@@ -416,7 +416,7 @@ dpaa2_create_dpio_device(int vdev_fd,
 	dpio_dev->hw_id = object_id;
 	rte_atomic16_init(&dpio_dev->ref_count);
 	/* Using single portal  for all devices */
-	dpio_dev->mc_portal = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpio_dev->mc_portal = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 
 	if (!check_lcore_cpuset) {
 		check_lcore_cpuset = 1;
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
index 33b191f823..194b99c583 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
@@ -198,9 +198,6 @@ struct dpaa2_dpcon_dev {
 	uint8_t channel_index;
 };
 
-/*! Global MCP list */
-extern void *(*rte_mcp_ptr_list);
-
 /* Refer to Table 7-3 in SEC BG */
 struct qbman_fle {
 	uint32_t addr_lo;
@@ -441,4 +438,8 @@ struct dpaa2_dpci_dev *rte_dpaa2_alloc_dpci_dev(void);
 __rte_internal
 void rte_dpaa2_free_dpci_dev(struct dpaa2_dpci_dev *dpci);
 
+/* Global MCP pointer */
+__rte_internal
+void *dpaa2_get_mcp_ptr(int portal_idx);
+
 #endif
diff --git a/drivers/bus/fslmc/rte_bus_fslmc_version.map b/drivers/bus/fslmc/rte_bus_fslmc_version.map
index 1b7a5a45e9..80da19a277 100644
--- a/drivers/bus/fslmc/rte_bus_fslmc_version.map
+++ b/drivers/bus/fslmc/rte_bus_fslmc_version.map
@@ -21,6 +21,7 @@ INTERNAL {
 	dpaa2_free_dpbp_dev;
 	dpaa2_free_dq_storage;
 	dpaa2_free_eq_descriptors;
+	dpaa2_get_mcp_ptr;
 	dpaa2_io_portal;
 	dpaa2_svr_family;
 	dpaa2_virt_mode;
@@ -111,5 +112,4 @@ INTERNAL {
 	rte_fslmc_get_device_count;
 	rte_fslmc_object_register;
 	rte_global_active_dqs_list;
-	rte_mcp_ptr_list;
 };
diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index fe34e644cc..5d63644934 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -3788,7 +3788,7 @@ dpaa2_sec_dev_init(struct rte_cryptodev *cryptodev)
 			"Error in allocating the memory for dpsec object");
 		return -ENOMEM;
 	}
-	dpseci->regs = rte_mcp_ptr_list[0];
+	dpseci->regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 
 	retcode = dpseci_open(dpseci, CMD_PRI_LOW, hw_id, &token);
 	if (retcode != 0) {
diff --git a/drivers/event/dpaa2/dpaa2_hw_dpcon.c b/drivers/event/dpaa2/dpaa2_hw_dpcon.c
index d64e588aa8..200b71640b 100644
--- a/drivers/event/dpaa2/dpaa2_hw_dpcon.c
+++ b/drivers/event/dpaa2/dpaa2_hw_dpcon.c
@@ -48,7 +48,7 @@ rte_dpaa2_create_dpcon_device(int dev_fd __rte_unused,
 	}
 
 	/* Open the dpcon object */
-	dpcon_node->dpcon.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpcon_node->dpcon.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dpcon_open(&dpcon_node->dpcon,
 			 CMD_PRI_LOW, dpcon_id, &dpcon_node->token);
 	if (ret) {
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index 1bab3b064c..2f031ec5c1 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -2343,7 +2343,7 @@ dpaa2_dev_init(struct rte_eth_dev *eth_dev)
 		DPAA2_PMD_ERR("Memory allocation failed for dpni device");
 		return -1;
 	}
-	dpni_dev->regs = rte_mcp_ptr_list[0];
+	dpni_dev->regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	eth_dev->process_private = (void *)dpni_dev;
 
 	/* For secondary processes, the primary has done all the work */
diff --git a/drivers/net/dpaa2/dpaa2_mux.c b/drivers/net/dpaa2/dpaa2_mux.c
index 9ac8806faf..f8366e839e 100644
--- a/drivers/net/dpaa2/dpaa2_mux.c
+++ b/drivers/net/dpaa2/dpaa2_mux.c
@@ -224,7 +224,7 @@ dpaa2_create_dpdmux_device(int vdev_fd __rte_unused,
 	}
 
 	/* Open the dpdmux object */
-	dpdmux_dev->dpdmux.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpdmux_dev->dpdmux.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dpdmux_open(&dpdmux_dev->dpdmux, CMD_PRI_LOW, dpdmux_id,
 			  &dpdmux_dev->token);
 	if (ret) {
diff --git a/drivers/net/dpaa2/dpaa2_ptp.c b/drivers/net/dpaa2/dpaa2_ptp.c
index 316912fe3e..f58eedb314 100644
--- a/drivers/net/dpaa2/dpaa2_ptp.c
+++ b/drivers/net/dpaa2/dpaa2_ptp.c
@@ -147,7 +147,7 @@ dpaa2_create_dprtc_device(int vdev_fd __rte_unused,
 	}
 
 	/* Open the dprtc object */
-	dprtc_dev->dprtc.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dprtc_dev->dprtc.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dprtc_open(&dprtc_dev->dprtc, CMD_PRI_LOW, dprtc_id,
 			  &dprtc_dev->token);
 	if (ret) {
diff --git a/drivers/raw/dpaa2_qdma/dpaa2_qdma.c b/drivers/raw/dpaa2_qdma/dpaa2_qdma.c
index d5202d6522..1be1b6ddf0 100644
--- a/drivers/raw/dpaa2_qdma/dpaa2_qdma.c
+++ b/drivers/raw/dpaa2_qdma/dpaa2_qdma.c
@@ -1315,7 +1315,7 @@ dpaa2_dpdmai_dev_init(struct rte_rawdev *rawdev, int dpdmai_id)
 
 	/* Open DPDMAI device */
 	dpdmai_dev->dpdmai_id = dpdmai_id;
-	dpdmai_dev->dpdmai.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	dpdmai_dev->dpdmai.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
 	ret = dpdmai_open(&dpdmai_dev->dpdmai, CMD_PRI_LOW,
 			  dpdmai_dev->dpdmai_id, &dpdmai_dev->token);
 	if (ret) {
-- 
2.17.1