[dpdk-dev] [PATCH 18/32] net/dpaa2: introducing dpaa2 pmd driver

[Hemant Agrawal]

add support for dpaa2 architucture fsl-mc bus based dpaa2 pmd driver.

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/net/dpaa2/Makefile       |  1 +
 drivers/net/dpaa2/dpaa2_bus.c    | 64 ++++++++++++++++++++++++++++++++++++++--
 drivers/net/dpaa2/dpaa2_ethdev.c | 54 +++++++++++++++++++++++++++++++++
 drivers/net/dpaa2/dpaa2_ethdev.h | 39 ++++++++++++++++++++++++
 4 files changed, 155 insertions(+), 3 deletions(-)
 create mode 100644 drivers/net/dpaa2/dpaa2_ethdev.c
 create mode 100644 drivers/net/dpaa2/dpaa2_ethdev.h

diff --git a/drivers/net/dpaa2/Makefile b/drivers/net/dpaa2/Makefile
index c4981b2..45e28d2 100644
--- a/drivers/net/dpaa2/Makefile
+++ b/drivers/net/dpaa2/Makefile
@@ -61,6 +61,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += base/dpaa2_hw_dpbp.c
 SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2_vfio.c
 # Interfaces with DPDK
 SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2_bus.c
+SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2_ethdev.c
 
 # library dependencies
 DEPDIRS-y += lib/librte_eal
diff --git a/drivers/net/dpaa2/dpaa2_bus.c b/drivers/net/dpaa2/dpaa2_bus.c
index fa88599..81eaca8 100644
--- a/drivers/net/dpaa2/dpaa2_bus.c
+++ b/drivers/net/dpaa2/dpaa2_bus.c
@@ -44,6 +44,7 @@
 
 #include "eal_filesystem.h"
 #include "eal_private.h"
+#include "dpaa2_ethdev.h"
 #include "dpaa2_vfio.h"
 
 #define DPAA2_BUS_LOG(level, fmt, args...) \
@@ -77,10 +78,67 @@
 	rte_eal_bus_remove_driver(&driver->driver);
 }
 
-int rte_dpaa2_probe(struct rte_driver *driver __rte_unused,
-				    struct rte_device *device __rte_unused)
+static void
+dpaa2_device_name(struct rte_dpaa2_device *dev __rte_unused, char *ethdev_name,
+		      unsigned int len)
 {
-	return 0;
+	/* Fill the name of the ethernet device based on the device info
+	 */
+	/* TODO This is dummy */
+	strncpy(ethdev_name, "dpaa2_device", len);
+}
+
+int rte_dpaa2_probe(struct rte_driver *drv, struct rte_device *dev)
+{
+	struct eth_driver    *eth_drv;
+	struct rte_eth_dev *eth_dev;
+	struct rte_dpaa2_driver *dpaa2_drv;
+	struct rte_dpaa2_device *dpaa2_dev;
+	char ethdev_name[RTE_ETH_NAME_MAX_LEN];
+
+	int diag;
+
+	dpaa2_drv = container_of(drv, struct rte_dpaa2_driver, driver);
+	dpaa2_dev = container_of(dev, struct rte_dpaa2_device, device);
+
+	eth_drv = (struct eth_driver *)dpaa2_drv;
+
+	dpaa2_device_name(dpaa2_dev, ethdev_name, sizeof(ethdev_name));
+
+	eth_dev = rte_eth_dev_allocate(ethdev_name);
+	if (eth_dev == NULL)
+		return -ENOMEM;
+
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		eth_dev->data->dev_private = rte_zmalloc(
+						"ethdev private structure",
+						eth_drv->dev_private_size,
+						RTE_CACHE_LINE_SIZE);
+		if (eth_dev->data->dev_private == NULL)
+			rte_panic("Cannot allocate memzone for private port"
+				  " data\n");
+	}
+	eth_dev->device = &dpaa2_dev->device;
+	eth_dev->driver = eth_drv;
+	eth_dev->data->rx_mbuf_alloc_failed = 0;
+
+	/* init user callbacks */
+	TAILQ_INIT(&eth_dev->link_intr_cbs);
+
+	/*
+	 * Set the default MTU.
+	 */
+	eth_dev->data->mtu = ETHER_MTU;
+
+	/* Invoke PMD device initialization function */
+	diag = dpaa2_dev_init(eth_dev);
+	if (diag == 0)
+		return 0;
+
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		rte_free(eth_dev->data->dev_private);
+	rte_eth_dev_release_port(eth_dev);
+	return diag;
 }
 
 int rte_dpaa2_scan(struct rte_bus *bus_d)
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
new file mode 100644
index 0000000..17dfff6
--- /dev/null
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -0,0 +1,54 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.
+ *   Copyright (c) 2016 NXP. All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Freescale Semiconductor, Inc nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <time.h>
+#include <net/if.h>
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_cycles.h>
+#include <rte_kvargs.h>
+#include <rte_dev.h>
+#include <rte_ethdev.h>
+
+/* DPDK Interfaces */
+#include <dpaa2_ethdev.h>
+
+int
+dpaa2_dev_init(struct rte_eth_dev *eth_dev __rte_unused)
+{
+	return 0;
+}
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.h b/drivers/net/dpaa2/dpaa2_ethdev.h
new file mode 100644
index 0000000..0295868
--- /dev/null
+++ b/drivers/net/dpaa2/dpaa2_ethdev.h
@@ -0,0 +1,39 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.
+ *   Copyright (c) 2016 NXP. All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Freescale Semiconductor, Inc nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _DPAA2_ETHDEV_H
+#define _DPAA2_ETHDEV_H
+
+int dpaa2_dev_init(struct rte_eth_dev *eth_dev);
+
+#endif /* _DPAA2_ETHDEV_H */
-- 
1.9.1