[dpdk-dev] [PATCH v4 2/8] baseband: introduce NXP LA12xx driver

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

This patch introduce the baseband device drivers for NXP's
LA1200 series software defined baseband modem.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/baseband/la12xx/bbdev_la12xx.c        | 109 ++++++++++++++++++
 .../baseband/la12xx/bbdev_la12xx_pmd_logs.h   |  26 +++++
 drivers/baseband/la12xx/meson.build           |   6 +
 drivers/baseband/la12xx/version.map           |   3 +
 drivers/baseband/meson.build                  |   1 +
 5 files changed, 145 insertions(+)
 create mode 100644 drivers/baseband/la12xx/bbdev_la12xx.c
 create mode 100644 drivers/baseband/la12xx/bbdev_la12xx_pmd_logs.h
 create mode 100644 drivers/baseband/la12xx/meson.build
 create mode 100644 drivers/baseband/la12xx/version.map

diff --git a/drivers/baseband/la12xx/bbdev_la12xx.c b/drivers/baseband/la12xx/bbdev_la12xx.c
new file mode 100644
index 0000000000..7050b17728
--- /dev/null
+++ b/drivers/baseband/la12xx/bbdev_la12xx.c
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2020-2021 NXP
+ */
+
+#include <string.h>
+
+#include <rte_common.h>
+#include <rte_bus_vdev.h>
+#include <rte_malloc.h>
+#include <rte_ring.h>
+#include <rte_kvargs.h>
+
+#include <rte_bbdev.h>
+#include <rte_bbdev_pmd.h>
+
+#include <bbdev_la12xx_pmd_logs.h>
+
+#define DRIVER_NAME baseband_la12xx
+
+RTE_LOG_REGISTER(bbdev_la12xx_logtype, pmd.bb.la12xx, NOTICE);
+
+/* private data structure */
+struct bbdev_la12xx_private {
+	unsigned int max_nb_queues;  /**< Max number of queues */
+};
+/* Create device */
+static int
+la12xx_bbdev_create(struct rte_vdev_device *vdev)
+{
+	struct rte_bbdev *bbdev;
+	const char *name = rte_vdev_device_name(vdev);
+
+	PMD_INIT_FUNC_TRACE();
+
+	bbdev = rte_bbdev_allocate(name);
+	if (bbdev == NULL)
+		return -ENODEV;
+
+	bbdev->data->dev_private = rte_zmalloc(name,
+			sizeof(struct bbdev_la12xx_private),
+			RTE_CACHE_LINE_SIZE);
+	if (bbdev->data->dev_private == NULL) {
+		rte_bbdev_release(bbdev);
+		return -ENOMEM;
+	}
+
+	bbdev->dev_ops = NULL;
+	bbdev->device = &vdev->device;
+	bbdev->data->socket_id = 0;
+	bbdev->intr_handle = NULL;
+
+	/* register rx/tx burst functions for data path */
+	bbdev->dequeue_enc_ops = NULL;
+	bbdev->dequeue_dec_ops = NULL;
+	bbdev->enqueue_enc_ops = NULL;
+	bbdev->enqueue_dec_ops = NULL;
+
+	return 0;
+}
+
+/* Initialise device */
+static int
+la12xx_bbdev_probe(struct rte_vdev_device *vdev)
+{
+	const char *name;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (vdev == NULL)
+		return -EINVAL;
+
+	name = rte_vdev_device_name(vdev);
+	if (name == NULL)
+		return -EINVAL;
+
+	return la12xx_bbdev_create(vdev);
+}
+
+/* Uninitialise device */
+static int
+la12xx_bbdev_remove(struct rte_vdev_device *vdev)
+{
+	struct rte_bbdev *bbdev;
+	const char *name;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (vdev == NULL)
+		return -EINVAL;
+
+	name = rte_vdev_device_name(vdev);
+	if (name == NULL)
+		return -EINVAL;
+
+	bbdev = rte_bbdev_get_named_dev(name);
+	if (bbdev == NULL)
+		return -EINVAL;
+
+	rte_free(bbdev->data->dev_private);
+
+	return rte_bbdev_release(bbdev);
+}
+
+static struct rte_vdev_driver bbdev_la12xx_pmd_drv = {
+	.probe = la12xx_bbdev_probe,
+	.remove = la12xx_bbdev_remove
+};
+
+RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_la12xx_pmd_drv);
diff --git a/drivers/baseband/la12xx/bbdev_la12xx_pmd_logs.h b/drivers/baseband/la12xx/bbdev_la12xx_pmd_logs.h
new file mode 100644
index 0000000000..9dfa1cc458
--- /dev/null
+++ b/drivers/baseband/la12xx/bbdev_la12xx_pmd_logs.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2020 NXP
+ */
+
+#ifndef _BBDEV_LA12XX_PMD_LOGS_H_
+#define _BBDEV_LA12XX_PMD_LOGS_H_
+
+#define rte_bbdev_log(level, fmt, ...) \
+	rte_log(RTE_LOG_ ## level, bbdev_la12xx_logtype, fmt "\n", \
+		##__VA_ARGS__)
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+#define rte_bbdev_log_debug(fmt, ...) \
+		rte_bbdev_log(DEBUG, "la12xx_pmd: " fmt, \
+		##__VA_ARGS__)
+#else
+#define rte_bbdev_log_debug(fmt, ...)
+#endif
+
+#define PMD_INIT_FUNC_TRACE() rte_bbdev_log_debug(">>")
+
+/* DP Logs, toggled out at compile time if level lower than current level */
+#define rte_bbdev_dp_log(level, fmt, args...) \
+	RTE_LOG_DP(level, PMD, fmt, ## args)
+
+#endif /* _BBDEV_LA12XX_PMD_LOGS_H_ */
diff --git a/drivers/baseband/la12xx/meson.build b/drivers/baseband/la12xx/meson.build
new file mode 100644
index 0000000000..7a017dcffa
--- /dev/null
+++ b/drivers/baseband/la12xx/meson.build
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2020-2021 NXP
+
+deps += ['bbdev', 'bus_vdev', 'ring']
+
+sources = files('bbdev_la12xx.c')
diff --git a/drivers/baseband/la12xx/version.map b/drivers/baseband/la12xx/version.map
new file mode 100644
index 0000000000..4a76d1d52d
--- /dev/null
+++ b/drivers/baseband/la12xx/version.map
@@ -0,0 +1,3 @@
+DPDK_21 {
+	local: *;
+};
diff --git a/drivers/baseband/meson.build b/drivers/baseband/meson.build
index c98ebd9024..fbc9c7e9ab 100644
--- a/drivers/baseband/meson.build
+++ b/drivers/baseband/meson.build
@@ -11,4 +11,5 @@ drivers = [
         'fpga_lte_fec',
         'null',
         'turbo_sw',
+        'la12xx',
 ]
-- 
2.17.1