[dpdk-dev] [PATCH v3 12/21] bus/fslmc: introduce support for hardware mempool object

[Hemant Agrawal]

Each mempool instance is represented by a DPBP object
from the FSL-MC bus.

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/bus/fslmc/Makefile                  |   1 +
 drivers/bus/fslmc/fslmc_vfio.c              |   9 +-
 drivers/bus/fslmc/fslmc_vfio.h              |   2 +
 drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c    | 137 ++++++++++++++++++++++++++++
 drivers/bus/fslmc/portal/dpaa2_hw_pvt.h     |  18 ++++
 drivers/bus/fslmc/rte_bus_fslmc_version.map |   2 +
 6 files changed, 168 insertions(+), 1 deletion(-)
 create mode 100644 drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c

diff --git a/drivers/bus/fslmc/Makefile b/drivers/bus/fslmc/Makefile
index aef53fd..a9828ed 100644
--- a/drivers/bus/fslmc/Makefile
+++ b/drivers/bus/fslmc/Makefile
@@ -68,6 +68,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += \
         mc/mc_sys.c
 
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += portal/dpaa2_hw_dpio.c
+SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += portal/dpaa2_hw_dpbp.c
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc_vfio.c
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc_bus.c
 
diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 7398637..d28fb7b 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -270,7 +270,7 @@ int fslmc_vfio_process_group(void)
 	char path[PATH_MAX];
 	int64_t v_addr;
 	int ndev_count;
-	int dpio_count = 0;
+	int dpio_count = 0, dpbp_count = 0;
 	struct fslmc_vfio_group *group = &vfio_groups[0];
 	static int process_once;
 
@@ -421,6 +421,11 @@ int fslmc_vfio_process_group(void)
 			if (!ret)
 				dpio_count++;
 		}
+		if (!strcmp(object_type, "dpbp")) {
+			ret = dpaa2_create_dpbp_device(object_id);
+			if (!ret)
+				dpbp_count++;
+		}
 	}
 	closedir(d);
 
@@ -428,6 +433,8 @@ int fslmc_vfio_process_group(void)
 	if (ret)
 		FSLMC_VFIO_LOG(DEBUG, "Error in affining qbman swp %d", ret);
 
+	FSLMC_VFIO_LOG(DEBUG, "DPAA2: Added dpbp_count = %d dpio_count=%d\n",
+		      dpbp_count, dpio_count);
 	return 0;
 
 FAILURE:
diff --git a/drivers/bus/fslmc/fslmc_vfio.h b/drivers/bus/fslmc/fslmc_vfio.h
index 39994dd..80c6869 100644
--- a/drivers/bus/fslmc/fslmc_vfio.h
+++ b/drivers/bus/fslmc/fslmc_vfio.h
@@ -76,4 +76,6 @@ int dpaa2_create_dpio_device(struct fslmc_vfio_device *vdev,
 			     struct vfio_device_info *obj_info,
 			     int object_id);
 
+int dpaa2_create_dpbp_device(int dpbp_id);
+
 #endif /* _FSLMC_VFIO_H_ */
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
new file mode 100644
index 0000000..894f632
--- /dev/null
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
@@ -0,0 +1,137 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 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 <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.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>
+
+#include <fslmc_logs.h>
+#include <fslmc_vfio.h>
+#include <mc/fsl_dpbp.h>
+#include "portal/dpaa2_hw_pvt.h"
+#include "portal/dpaa2_hw_dpio.h"
+
+TAILQ_HEAD(dpbp_device_list, dpaa2_dpbp_dev);
+static struct dpbp_device_list *dpbp_dev_list; /*!< DPBP device list */
+
+int
+dpaa2_create_dpbp_device(
+		int dpbp_id)
+{
+	struct dpaa2_dpbp_dev *dpbp_node;
+	int ret;
+
+	if (!dpbp_dev_list) {
+		dpbp_dev_list = malloc(sizeof(struct dpbp_device_list));
+		if (!dpbp_dev_list) {
+			PMD_INIT_LOG(ERR, "Memory alloc failed in DPBP list\n");
+			return -1;
+		}
+		/* Initialize the DPBP List */
+		TAILQ_INIT(dpbp_dev_list);
+	}
+
+	/* Allocate DPAA2 dpbp handle */
+	dpbp_node = (struct dpaa2_dpbp_dev *)
+			malloc(sizeof(struct dpaa2_dpbp_dev));
+	if (!dpbp_node) {
+		PMD_INIT_LOG(ERR, "Memory allocation failed for DPBP Device");
+		return -1;
+	}
+
+	/* Open the dpbp object */
+	dpbp_node->dpbp.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
+	ret = dpbp_open(&dpbp_node->dpbp,
+			CMD_PRI_LOW, dpbp_id, &dpbp_node->token);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Resource alloc failure with err code: %d",
+			     ret);
+		free(dpbp_node);
+		return -1;
+	}
+
+	/* Clean the device first */
+	ret = dpbp_reset(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failure cleaning dpbp device with"
+					" error code %d\n", ret);
+		return -1;
+	}
+
+	dpbp_node->dpbp_id = dpbp_id;
+	rte_atomic16_init(&dpbp_node->in_use);
+
+	TAILQ_INSERT_HEAD(dpbp_dev_list, dpbp_node, next);
+
+	PMD_INIT_LOG(DEBUG, "Buffer pool resource initialized %d", dpbp_id);
+
+	return 0;
+}
+
+struct dpaa2_dpbp_dev *dpaa2_alloc_dpbp_dev(void)
+{
+	struct dpaa2_dpbp_dev *dpbp_dev = NULL;
+
+	/* Get DPBP dev handle from list using index */
+	TAILQ_FOREACH(dpbp_dev, dpbp_dev_list, next) {
+		if (dpbp_dev && rte_atomic16_test_and_set(&dpbp_dev->in_use))
+			break;
+	}
+
+	return dpbp_dev;
+}
+
+void dpaa2_free_dpbp_dev(struct dpaa2_dpbp_dev *dpbp)
+{
+	struct dpaa2_dpbp_dev *dpbp_dev = NULL;
+
+	/* Match DPBP handle and mark it free */
+	TAILQ_FOREACH(dpbp_dev, dpbp_dev_list, next) {
+		if (dpbp_dev == dpbp) {
+			rte_atomic16_dec(&dpbp_dev->in_use);
+			return;
+		}
+	}
+}
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
index 6b44314..453fc10 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
@@ -41,6 +41,11 @@
 #define MC_PORTAL_INDEX		0
 #define NUM_DPIO_REGIONS	2
 
+/* Maximum release/acquire from QBMAN */
+#define DPAA2_MBUF_MAX_ACQ_REL	7
+
+#define MAX_BPID 256
+
 struct dpaa2_dpio_dev {
 	TAILQ_ENTRY(dpaa2_dpio_dev) next;
 		/**< Pointer to Next device instance */
@@ -63,6 +68,19 @@ struct dpaa2_dpio_dev {
 	int32_t hw_id; /**< An unique ID of this DPIO device instance */
 };
 
+struct dpaa2_dpbp_dev {
+	TAILQ_ENTRY(dpaa2_dpbp_dev) next;
+		/**< Pointer to Next device instance */
+	struct fsl_mc_io dpbp;  /** handle to DPBP portal object */
+	uint16_t token;
+	rte_atomic16_t in_use;
+	uint32_t dpbp_id; /*HW ID for DPBP object */
+};
+
 /*! Global MCP list */
 extern void *(*rte_mcp_ptr_list);
+
+struct dpaa2_dpbp_dev *dpaa2_alloc_dpbp_dev(void);
+void dpaa2_free_dpbp_dev(struct dpaa2_dpbp_dev *dpbp);
+
 #endif
diff --git a/drivers/bus/fslmc/rte_bus_fslmc_version.map b/drivers/bus/fslmc/rte_bus_fslmc_version.map
index 026b1be..3d5c1ad 100644
--- a/drivers/bus/fslmc/rte_bus_fslmc_version.map
+++ b/drivers/bus/fslmc/rte_bus_fslmc_version.map
@@ -2,6 +2,8 @@ DPDK_17.05 {
 	global:
 
 	dpaa2_affine_qbman_swp;
+	dpaa2_alloc_dpbp_dev;
+	dpaa2_free_dpbp_dev;
 	dpbp_disable;
 	dpbp_enable;
 	dpbp_get_attributes;
-- 
2.1.4