[PATCH 12/14] baseband/ark: introduce ark baseband driver common functions

[John Miller <john.miller@atomicrules.com>]

This patch introduces the Arkville baseband device driver common functions.

Signed-off-by: John Miller <john.miller@atomicrules.com>
---
 drivers/baseband/ark/ark_bbdev_common.c | 109 ++++++++++++++++++++++++
 drivers/baseband/ark/ark_bbdev_common.h | 100 ++++++++++++++++++++++
 2 files changed, 209 insertions(+)
 create mode 100644 drivers/baseband/ark/ark_bbdev_common.c
 create mode 100644 drivers/baseband/ark/ark_bbdev_common.h

diff --git a/drivers/baseband/ark/ark_bbdev_common.c b/drivers/baseband/ark/ark_bbdev_common.c
new file mode 100644
index 0000000000..b980dd7159
--- /dev/null
+++ b/drivers/baseband/ark/ark_bbdev_common.c
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2021 Atomic Rules LLC
+ */
+
+#include <string.h>
+
+#include <rte_kvargs.h>
+#include <rte_log.h>
+
+#include "ark_bbdev_common.h"
+
+int ark_bbdev_logtype;
+RTE_LOG_REGISTER_DEFAULT(ark_bbdev_logtype, DEBUG);
+
+static const char * const ark_bbdev_valid_params[] = {
+	ARK_BBDEV_PKTDIR_ARG,
+	ARK_BBDEV_PKTGEN_ARG,
+	ARK_BBDEV_PKTCHKR_ARG,
+	NULL
+};
+
+static inline int
+process_pktdir_arg(const char *key, const char *value,
+		   void *extra_args)
+{
+	uint32_t *u32 = extra_args;
+	ARK_BBDEV_LOG(DEBUG, "key = %s, value = %s", key, value);
+
+	*u32 = strtol(value, NULL, 0);
+	ARK_BBDEV_LOG(DEBUG, "pkt_dir_v = 0x%x", *u32);
+	return 0;
+}
+
+static inline int
+process_file_args(const char *key, const char *value, void *extra_args)
+{
+	char *args = (char *)extra_args;
+	ARK_BBDEV_LOG(DEBUG, "key = %s, value = %s", key, value);
+
+	/* Open the configuration file */
+	FILE *file = fopen(value, "r");
+	char line[ARK_MAX_ARG_LEN];
+	int  size = 0;
+	int first = 1;
+
+	if (file == NULL) {
+		ARK_BBDEV_LOG(ERR, "Unable to open config file %s",
+			      value);
+		return -1;
+	}
+
+	while (fgets(line, sizeof(line), file)) {
+		size += strlen(line);
+		if (size >= ARK_MAX_ARG_LEN) {
+			ARK_BBDEV_LOG(ERR, "Unable to parse file %s args, "
+				      "parameter list is too long", value);
+			fclose(file);
+			return -1;
+		}
+		if (first) {
+			strncpy(args, line, ARK_MAX_ARG_LEN);
+			first = 0;
+		} else {
+			strncat(args, line, ARK_MAX_ARG_LEN);
+		}
+	}
+	ARK_BBDEV_LOG(DEBUG, "file = %s", args);
+	fclose(file);
+	return 0;
+}
+
+
+/* Parse parameters used to create device */
+int
+parse_ark_bbdev_params(const char *input_args,
+		       struct ark_bbdevice *ark_bb)
+{
+	struct rte_kvargs *kvlist = NULL;
+	int ret = 0;
+
+	if (ark_bb == NULL)
+		return -EINVAL;
+	if (input_args == NULL)
+		return ret;
+
+	kvlist = rte_kvargs_parse(input_args, ark_bbdev_valid_params);
+	if (kvlist == NULL)
+		return -EFAULT;
+
+	ret = rte_kvargs_process(kvlist, ARK_BBDEV_PKTDIR_ARG,
+				  &process_pktdir_arg, &ark_bb->pkt_dir_v);
+	if (ret < 0)
+		goto exit;
+
+	ret = rte_kvargs_process(kvlist, ARK_BBDEV_PKTGEN_ARG,
+				 &process_file_args, &ark_bb->pkt_gen_args);
+	if (ret < 0)
+		goto exit;
+
+	ret = rte_kvargs_process(kvlist, ARK_BBDEV_PKTCHKR_ARG,
+				 &process_file_args, &ark_bb->pkt_chkr_args);
+	if (ret < 0)
+		goto exit;
+
+ exit:
+	if (kvlist)
+		rte_kvargs_free(kvlist);
+	return ret;
+}
diff --git a/drivers/baseband/ark/ark_bbdev_common.h b/drivers/baseband/ark/ark_bbdev_common.h
new file mode 100644
index 0000000000..9240a11669
--- /dev/null
+++ b/drivers/baseband/ark/ark_bbdev_common.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016-2021 Atomic Rules LLC
+ */
+
+#ifndef _ARK_BBDEV_COMMON_H_
+#define _ARK_BBDEV_COMMON_H_
+
+#include "ark_pktchkr.h"
+#include "ark_pktdir.h"
+#include "ark_pktgen.h"
+#include "ark_bbext.h"
+
+#define ARK_MAX_ARG_LEN 256
+
+/* Acceptable params for ark BBDEV devices */
+/*
+ * The packet generator is a functional block used to generate packet
+ * patterns for testing.  It is not intended for nominal use.
+ */
+#define ARK_BBDEV_PKTGEN_ARG "Pkt_gen"
+
+/*
+ * The packet checker is a functional block used to verify packet
+ * patterns for testing.  It is not intended for nominal use.
+ */
+#define ARK_BBDEV_PKTCHKR_ARG "Pkt_chkr"
+
+/*
+ * The packet director is used to select the internal ingress and
+ * egress packets paths during testing.  It is not intended for
+ * nominal use.
+ */
+#define ARK_BBDEV_PKTDIR_ARG "Pkt_dir"
+
+
+#define def_ptr(type, name) \
+	union type {		   \
+		uint64_t *t64;	   \
+		uint32_t *t32;	   \
+		uint16_t *t16;	   \
+		uint8_t  *t8;	   \
+		void     *v;	   \
+	} name
+
+/*
+ * Structure to store private data for each PF/VF instance.
+ */
+struct ark_bbdevice {
+	/* Our Bar 0 */
+	uint8_t *bar0;
+
+	/* Application Bar needed for extensions */
+	uint8_t *a_bar;
+
+	/* rte baseband device */
+	struct rte_bbdev *bbdev;
+
+	/* Arkville hardware block offsets */
+	def_ptr(sys_ctrl, sysctrl);
+	def_ptr(pkt_gen, pktgen);
+	def_ptr(mpu_rx, mpurx);
+	def_ptr(UDM, udm);
+	def_ptr(mpu_tx, mputx);
+	def_ptr(DDM, ddm);
+	def_ptr(pkt_dir, pktdir);
+	def_ptr(pkt_chkr, pktchkr);
+	struct ark_rqpace_t *rqpacing;
+
+	/* Pointers to packet generator and checker */
+	int start_pg;
+	ark_pkt_gen_t pg;
+	ark_pkt_chkr_t pc;
+	ark_pkt_dir_t pd;
+
+	/* Packet generator/checker args */
+	char pkt_gen_args[ARK_MAX_ARG_LEN];
+	char pkt_chkr_args[ARK_MAX_ARG_LEN];
+	uint32_t pkt_dir_v;
+
+	int started;
+	unsigned int max_nb_queues;  /**< Max number of queues */
+
+	void *d_handle;
+	struct arkbb_user_ext user_ext;
+	void *user_data;
+
+};
+
+
+/* Log message for baseband PMD */
+extern int ark_bbdev_logtype;
+
+/* Helper macro for logging */
+#define ARK_BBDEV_LOG(level, fmt, ...) \
+	rte_log(RTE_LOG_ ## level, ark_bbdev_logtype, \
+		"ARK_BBD: " fmt "\n", ##__VA_ARGS__)
+
+int parse_ark_bbdev_params(const char *argv, struct ark_bbdevice *dev);
+
+#endif
-- 
2.25.1