Imported Upstream version 17.05

[deb_dpdk.git] / drivers / bus / fslmc / portal / dpaa2_hw_dpbp.c

diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
new file mode 100644 (file)
index 0000000..2fb285c
--- /dev/null
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
@@ -0,0 +1,139 @@
+/*-
+ *   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);
+               dpbp_close(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
+               free(dpbp_node);
+               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;
+               }
+       }
+}