1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2020 Mellanox Technologies, Ltd
5 #include <rte_malloc.h>
9 #include <rte_regexdev.h>
10 #include <rte_regexdev_core.h>
11 #include <rte_regexdev_driver.h>
12 #include <rte_bus_pci.h>
14 #include <mlx5_common.h>
15 #include <mlx5_common_mr.h>
16 #include <mlx5_glue.h>
17 #include <mlx5_devx_cmds.h>
20 #include "mlx5_regex.h"
21 #include "mlx5_regex_utils.h"
23 #define MLX5_REGEX_DRIVER_NAME regex_mlx5
25 int mlx5_regex_logtype;
27 const struct rte_regexdev_ops mlx5_regexdev_ops = {
28 .dev_info_get = mlx5_regex_info_get,
29 .dev_configure = mlx5_regex_configure,
30 .dev_db_import = mlx5_regex_rules_db_import,
31 .dev_qp_setup = mlx5_regex_qp_setup,
32 .dev_start = mlx5_regex_start,
33 .dev_stop = mlx5_regex_stop,
34 .dev_close = mlx5_regex_close,
38 mlx5_regex_start(struct rte_regexdev *dev)
40 struct mlx5_regex_priv *priv = dev->data->dev_private;
42 return mlx5_dev_mempool_subscribe(priv->cdev);
46 mlx5_regex_stop(struct rte_regexdev *dev __rte_unused)
48 struct mlx5_regex_priv *priv = dev->data->dev_private;
50 mlx5_regex_clean_ctrl(dev);
58 mlx5_regex_close(struct rte_regexdev *dev __rte_unused)
64 mlx5_regex_get_name(char *name, struct rte_device *dev)
66 sprintf(name, "mlx5_regex_%s", dev->name);
70 mlx5_regex_dev_probe(struct mlx5_common_device *cdev)
72 struct mlx5_regex_priv *priv = NULL;
73 struct mlx5_hca_attr *attr = &cdev->config.hca_attr;
74 char name[RTE_REGEXDEV_NAME_MAX_LEN];
76 if ((!attr->regexp_params && !attr->mmo_regex_sq_en && !attr->mmo_regex_qp_en)
77 || attr->regexp_num_of_engines == 0) {
78 DRV_LOG(ERR, "Not enough capabilities to support RegEx, maybe "
79 "old FW/OFED version?");
83 priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
86 DRV_LOG(ERR, "Failed to allocate private memory.");
90 priv->mmo_regex_qp_cap = attr->mmo_regex_qp_en;
91 priv->mmo_regex_sq_cap = attr->mmo_regex_sq_en;
93 priv->nb_engines = 2; /* attr.regexp_num_of_engines */
94 if (attr->regexp_version == MLX5_RXP_BF2_IDENTIFIER)
96 /* Default RXP programming mode to Shared. */
97 priv->prog_mode = MLX5_RXP_SHARED_PROG_MODE;
98 mlx5_regex_get_name(name, cdev->dev);
99 priv->regexdev = rte_regexdev_register(name);
100 if (priv->regexdev == NULL) {
101 DRV_LOG(ERR, "Failed to register RegEx device.");
102 rte_errno = rte_errno ? rte_errno : EINVAL;
106 * This PMD always claims the write memory barrier on UAR
107 * registers writings, it is safe to allocate UAR with any
108 * memory mapping type.
110 priv->uar = mlx5_devx_alloc_uar(priv->cdev);
112 DRV_LOG(ERR, "can't allocate uar.");
116 priv->regexdev->dev_ops = &mlx5_regexdev_ops;
117 priv->regexdev->enqueue = mlx5_regexdev_enqueue;
118 #ifdef HAVE_MLX5_UMR_IMKEY
119 if (!attr->umr_indirect_mkey_disabled &&
120 !attr->umr_modify_entity_size_disabled)
123 priv->regexdev->enqueue = mlx5_regexdev_enqueue_gga;
125 priv->regexdev->dequeue = mlx5_regexdev_dequeue;
126 priv->regexdev->device = cdev->dev;
127 priv->regexdev->data->dev_private = priv;
128 priv->regexdev->state = RTE_REGEXDEV_READY;
129 DRV_LOG(INFO, "RegEx GGA is %s.",
130 priv->has_umr ? "supported" : "unsupported");
135 mlx5_glue->devx_free_uar(priv->uar);
137 rte_regexdev_unregister(priv->regexdev);
145 mlx5_regex_dev_remove(struct mlx5_common_device *cdev)
147 char name[RTE_REGEXDEV_NAME_MAX_LEN];
148 struct rte_regexdev *dev;
149 struct mlx5_regex_priv *priv = NULL;
151 mlx5_regex_get_name(name, cdev->dev);
152 dev = rte_regexdev_get_device_by_name(name);
155 priv = dev->data->dev_private;
158 mlx5_glue->devx_free_uar(priv->uar);
160 rte_regexdev_unregister(priv->regexdev);
166 static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
168 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
169 PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
172 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
173 PCI_DEVICE_ID_MELLANOX_CONNECTX7BF)
180 static struct mlx5_class_driver mlx5_regex_driver = {
181 .drv_class = MLX5_CLASS_REGEX,
182 .name = RTE_STR(MLX5_REGEX_DRIVER_NAME),
183 .id_table = mlx5_regex_pci_id_map,
184 .probe = mlx5_regex_dev_probe,
185 .remove = mlx5_regex_dev_remove,
188 RTE_INIT(rte_mlx5_regex_init)
192 mlx5_class_driver_register(&mlx5_regex_driver);
195 RTE_LOG_REGISTER_DEFAULT(mlx5_regex_logtype, NOTICE)
196 RTE_PMD_EXPORT_NAME(MLX5_REGEX_DRIVER_NAME, __COUNTER__);
197 RTE_PMD_REGISTER_PCI_TABLE(MLX5_REGEX_DRIVER_NAME, mlx5_regex_pci_id_map);
198 RTE_PMD_REGISTER_KMOD_DEP(MLX5_REGEX_DRIVER_NAME, "* ib_uverbs & mlx5_core & mlx5_ib");