1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2020 Mellanox Technologies, Ltd
5 #include <rte_malloc.h>
8 #include <rte_bus_pci.h>
10 #include <rte_regexdev.h>
11 #include <rte_regexdev_core.h>
12 #include <rte_regexdev_driver.h>
14 #include <mlx5_glue.h>
15 #include <mlx5_devx_cmds.h>
18 #include "mlx5_regex.h"
19 #include "mlx5_regex_utils.h"
20 #include "mlx5_rxp_csrs.h"
22 int mlx5_regex_logtype;
24 const struct rte_regexdev_ops mlx5_regexdev_ops = {
25 .dev_info_get = mlx5_regex_info_get,
26 .dev_configure = mlx5_regex_configure,
29 static struct ibv_device *
30 mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
33 struct ibv_device **ibv_list = mlx5_glue->get_device_list(&n);
34 struct ibv_device *ibv_match = NULL;
41 struct rte_pci_addr pci_addr;
43 DRV_LOG(DEBUG, "Checking device \"%s\"..", ibv_list[n]->name);
44 if (mlx5_dev_to_pci_addr(ibv_list[n]->ibdev_path, &pci_addr))
46 if (rte_pci_addr_cmp(addr, &pci_addr))
48 ibv_match = ibv_list[n];
53 mlx5_glue->free_device_list(ibv_list);
57 mlx5_regex_engines_status(struct ibv_context *ctx, int num_engines)
59 uint32_t fpga_ident = 0;
63 for (i = 0; i < num_engines; i++) {
64 err = mlx5_devx_regex_register_read(ctx, i,
65 MLX5_RXP_CSR_IDENTIFIER,
67 fpga_ident = (fpga_ident & (0x0000FFFF));
68 if (err || fpga_ident != MLX5_RXP_IDENTIFIER) {
69 DRV_LOG(ERR, "Failed setup RXP %d err %d database "
70 "memory 0x%x", i, err, fpga_ident);
80 mlx5_regex_get_name(char *name, struct rte_pci_device *pci_dev __rte_unused)
82 sprintf(name, "mlx5_regex_%02x:%02x.%02x", pci_dev->addr.bus,
83 pci_dev->addr.devid, pci_dev->addr.function);
87 mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
88 struct rte_pci_device *pci_dev)
90 struct ibv_device *ibv;
91 struct mlx5_regex_priv *priv = NULL;
92 struct ibv_context *ctx = NULL;
93 struct mlx5_hca_attr attr;
94 char name[RTE_REGEXDEV_NAME_MAX_LEN];
97 ibv = mlx5_regex_get_ib_device_match(&pci_dev->addr);
99 DRV_LOG(ERR, "No matching IB device for PCI slot "
100 PCI_PRI_FMT ".", pci_dev->addr.domain,
101 pci_dev->addr.bus, pci_dev->addr.devid,
102 pci_dev->addr.function);
105 DRV_LOG(INFO, "PCI information matches for device \"%s\".",
107 ctx = mlx5_glue->dv_open_device(ibv);
109 DRV_LOG(ERR, "Failed to open IB device \"%s\".", ibv->name);
113 ret = mlx5_devx_cmd_query_hca_attr(ctx, &attr);
115 DRV_LOG(ERR, "Unable to read HCA capabilities.");
118 } else if (!attr.regex || attr.regexp_num_of_engines == 0) {
119 DRV_LOG(ERR, "Not enough capabilities to support RegEx, maybe "
120 "old FW/OFED version?");
124 if (mlx5_regex_engines_status(ctx, 2)) {
125 DRV_LOG(ERR, "RegEx engine error.");
129 priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
130 RTE_CACHE_LINE_SIZE);
132 DRV_LOG(ERR, "Failed to allocate private memory.");
137 mlx5_regex_get_name(name, pci_dev);
138 priv->regexdev = rte_regexdev_register(name);
139 if (priv->regexdev == NULL) {
140 DRV_LOG(ERR, "Failed to register RegEx device.");
141 rte_errno = rte_errno ? rte_errno : EINVAL;
144 priv->regexdev->dev_ops = &mlx5_regexdev_ops;
145 priv->regexdev->device = (struct rte_device *)pci_dev;
146 priv->regexdev->data->dev_private = priv;
147 priv->regexdev->state = RTE_REGEXDEV_READY;
152 mlx5_glue->close_device(ctx);
159 mlx5_regex_pci_remove(struct rte_pci_device *pci_dev)
161 char name[RTE_REGEXDEV_NAME_MAX_LEN];
162 struct rte_regexdev *dev;
163 struct mlx5_regex_priv *priv = NULL;
165 mlx5_regex_get_name(name, pci_dev);
166 dev = rte_regexdev_get_device_by_name(name);
169 priv = dev->data->dev_private;
172 mlx5_glue->close_device(priv->ctx);
174 rte_regexdev_unregister(priv->regexdev);
180 static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
182 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
183 PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
190 static struct rte_pci_driver mlx5_regex_driver = {
192 .name = "mlx5_regex",
194 .id_table = mlx5_regex_pci_id_map,
195 .probe = mlx5_regex_pci_probe,
196 .remove = mlx5_regex_pci_remove,
200 RTE_INIT(rte_mlx5_regex_init)
203 rte_pci_register(&mlx5_regex_driver);
206 RTE_LOG_REGISTER(mlx5_regex_logtype, pmd.regex.mlx5, NOTICE)
207 RTE_PMD_EXPORT_NAME(net_mlx5_regex, __COUNTER__);
208 RTE_PMD_REGISTER_PCI_TABLE(net_mlx5_regex, mlx5_regex_pci_id_map);
209 RTE_PMD_REGISTER_KMOD_DEP(net_mlx5_regex, "* ib_uverbs & mlx5_core & mlx5_ib");