crypto/octeontx2: support security session create
[dpdk.git] / drivers / bus / fslmc / portal / dpaa2_hw_dpbp.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  *
3  *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
4  *   Copyright 2016 NXP
5  *
6  */
7
8 #include <unistd.h>
9 #include <stdio.h>
10 #include <sys/types.h>
11 #include <string.h>
12 #include <stdlib.h>
13 #include <fcntl.h>
14 #include <errno.h>
15
16 #include <rte_malloc.h>
17 #include <rte_memcpy.h>
18 #include <rte_string_fns.h>
19 #include <rte_cycles.h>
20 #include <rte_kvargs.h>
21 #include <rte_dev.h>
22 #include <rte_ethdev_driver.h>
23 #include <rte_mbuf_pool_ops.h>
24
25 #include <fslmc_logs.h>
26 #include <rte_fslmc.h>
27 #include <mc/fsl_dpbp.h>
28 #include "portal/dpaa2_hw_pvt.h"
29 #include "portal/dpaa2_hw_dpio.h"
30
31
32 TAILQ_HEAD(dpbp_dev_list, dpaa2_dpbp_dev);
33 static struct dpbp_dev_list dpbp_dev_list
34         = TAILQ_HEAD_INITIALIZER(dpbp_dev_list); /*!< DPBP device list */
35
36 static int
37 dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
38                          struct vfio_device_info *obj_info __rte_unused,
39                          int dpbp_id)
40 {
41         struct dpaa2_dpbp_dev *dpbp_node;
42         int ret;
43         static int register_once;
44
45         /* Allocate DPAA2 dpbp handle */
46         dpbp_node = rte_malloc(NULL, sizeof(struct dpaa2_dpbp_dev), 0);
47         if (!dpbp_node) {
48                 DPAA2_BUS_ERR("Memory allocation failed for DPBP Device");
49                 return -1;
50         }
51
52         /* Open the dpbp object */
53         dpbp_node->dpbp.regs = dpaa2_get_mcp_ptr(MC_PORTAL_INDEX);
54         ret = dpbp_open(&dpbp_node->dpbp,
55                         CMD_PRI_LOW, dpbp_id, &dpbp_node->token);
56         if (ret) {
57                 DPAA2_BUS_ERR("Unable to open buffer pool object: err(%d)",
58                               ret);
59                 rte_free(dpbp_node);
60                 return -1;
61         }
62
63         /* Clean the device first */
64         ret = dpbp_reset(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
65         if (ret) {
66                 DPAA2_BUS_ERR("Unable to reset buffer pool device. err(%d)",
67                               ret);
68                 dpbp_close(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
69                 rte_free(dpbp_node);
70                 return -1;
71         }
72
73         dpbp_node->dpbp_id = dpbp_id;
74         rte_atomic16_init(&dpbp_node->in_use);
75
76         TAILQ_INSERT_TAIL(&dpbp_dev_list, dpbp_node, next);
77
78         if (!register_once) {
79                 rte_mbuf_set_platform_mempool_ops(DPAA2_MEMPOOL_OPS_NAME);
80                 register_once = 1;
81         }
82
83         return 0;
84 }
85
86 struct dpaa2_dpbp_dev *dpaa2_alloc_dpbp_dev(void)
87 {
88         struct dpaa2_dpbp_dev *dpbp_dev = NULL;
89
90         /* Get DPBP dev handle from list using index */
91         TAILQ_FOREACH(dpbp_dev, &dpbp_dev_list, next) {
92                 if (dpbp_dev && rte_atomic16_test_and_set(&dpbp_dev->in_use))
93                         break;
94         }
95
96         return dpbp_dev;
97 }
98
99 void dpaa2_free_dpbp_dev(struct dpaa2_dpbp_dev *dpbp)
100 {
101         struct dpaa2_dpbp_dev *dpbp_dev = NULL;
102
103         /* Match DPBP handle and mark it free */
104         TAILQ_FOREACH(dpbp_dev, &dpbp_dev_list, next) {
105                 if (dpbp_dev == dpbp) {
106                         rte_atomic16_dec(&dpbp_dev->in_use);
107                         return;
108                 }
109         }
110 }
111
112 int dpaa2_dpbp_supported(void)
113 {
114         if (TAILQ_EMPTY(&dpbp_dev_list))
115                 return -1;
116         return 0;
117 }
118
119 static struct rte_dpaa2_object rte_dpaa2_dpbp_obj = {
120         .dev_type = DPAA2_BPOOL,
121         .create = dpaa2_create_dpbp_device,
122 };
123
124 RTE_PMD_REGISTER_DPAA2_OBJECT(dpbp, rte_dpaa2_dpbp_obj);