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,
27 .dev_db_import = mlx5_regex_rules_db_import,
30 static struct ibv_device *
31 mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
34 struct ibv_device **ibv_list = mlx5_glue->get_device_list(&n);
35 struct ibv_device *ibv_match = NULL;
42 struct rte_pci_addr pci_addr;
44 DRV_LOG(DEBUG, "Checking device \"%s\"..", ibv_list[n]->name);
45 if (mlx5_dev_to_pci_addr(ibv_list[n]->ibdev_path, &pci_addr))
47 if (rte_pci_addr_cmp(addr, &pci_addr))
49 ibv_match = ibv_list[n];
54 mlx5_glue->free_device_list(ibv_list);
58 mlx5_regex_engines_status(struct ibv_context *ctx, int num_engines)
60 uint32_t fpga_ident = 0;
64 for (i = 0; i < num_engines; i++) {
65 err = mlx5_devx_regex_register_read(ctx, i,
66 MLX5_RXP_CSR_IDENTIFIER,
68 fpga_ident = (fpga_ident & (0x0000FFFF));
69 if (err || fpga_ident != MLX5_RXP_IDENTIFIER) {
70 DRV_LOG(ERR, "Failed setup RXP %d err %d database "
71 "memory 0x%x", i, err, fpga_ident);
81 mlx5_regex_get_name(char *name, struct rte_pci_device *pci_dev __rte_unused)
83 sprintf(name, "mlx5_regex_%02x:%02x.%02x", pci_dev->addr.bus,
84 pci_dev->addr.devid, pci_dev->addr.function);
88 mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
89 struct rte_pci_device *pci_dev)
91 struct ibv_device *ibv;
92 struct mlx5_regex_priv *priv = NULL;
93 struct ibv_context *ctx = NULL;
94 struct mlx5_hca_attr attr;
95 char name[RTE_REGEXDEV_NAME_MAX_LEN];
98 ibv = mlx5_regex_get_ib_device_match(&pci_dev->addr);
100 DRV_LOG(ERR, "No matching IB device for PCI slot "
101 PCI_PRI_FMT ".", pci_dev->addr.domain,
102 pci_dev->addr.bus, pci_dev->addr.devid,
103 pci_dev->addr.function);
106 DRV_LOG(INFO, "PCI information matches for device \"%s\".",
108 ctx = mlx5_glue->dv_open_device(ibv);
110 DRV_LOG(ERR, "Failed to open IB device \"%s\".", ibv->name);
114 ret = mlx5_devx_cmd_query_hca_attr(ctx, &attr);
116 DRV_LOG(ERR, "Unable to read HCA capabilities.");
119 } else if (!attr.regex || attr.regexp_num_of_engines == 0) {
120 DRV_LOG(ERR, "Not enough capabilities to support RegEx, maybe "
121 "old FW/OFED version?");
125 if (mlx5_regex_engines_status(ctx, 2)) {
126 DRV_LOG(ERR, "RegEx engine error.");
130 priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
131 RTE_CACHE_LINE_SIZE);
133 DRV_LOG(ERR, "Failed to allocate private memory.");
138 priv->nb_engines = 2; /* attr.regexp_num_of_engines */
139 /* Default RXP programming mode to Shared. */
140 priv->prog_mode = MLX5_RXP_SHARED_PROG_MODE;
141 mlx5_regex_get_name(name, pci_dev);
142 priv->regexdev = rte_regexdev_register(name);
143 if (priv->regexdev == NULL) {
144 DRV_LOG(ERR, "Failed to register RegEx device.");
145 rte_errno = rte_errno ? rte_errno : EINVAL;
148 ret = mlx5_glue->devx_query_eqn(ctx, 0, &priv->eqn);
150 DRV_LOG(ERR, "can't query event queue number.");
154 priv->uar = mlx5_glue->devx_alloc_uar(ctx, 0);
156 DRV_LOG(ERR, "can't allocate uar.");
160 priv->pd = mlx5_glue->alloc_pd(ctx);
162 DRV_LOG(ERR, "can't allocate pd.");
166 priv->regexdev->dev_ops = &mlx5_regexdev_ops;
167 priv->regexdev->device = (struct rte_device *)pci_dev;
168 priv->regexdev->data->dev_private = priv;
169 priv->regexdev->state = RTE_REGEXDEV_READY;
174 mlx5_glue->dealloc_pd(priv->pd);
176 mlx5_glue->devx_free_uar(priv->uar);
178 rte_regexdev_unregister(priv->regexdev);
180 mlx5_glue->close_device(ctx);
187 mlx5_regex_pci_remove(struct rte_pci_device *pci_dev)
189 char name[RTE_REGEXDEV_NAME_MAX_LEN];
190 struct rte_regexdev *dev;
191 struct mlx5_regex_priv *priv = NULL;
193 mlx5_regex_get_name(name, pci_dev);
194 dev = rte_regexdev_get_device_by_name(name);
197 priv = dev->data->dev_private;
200 mlx5_glue->dealloc_pd(priv->pd);
202 mlx5_glue->devx_free_uar(priv->uar);
204 rte_regexdev_unregister(priv->regexdev);
206 mlx5_glue->close_device(priv->ctx);
208 rte_regexdev_unregister(priv->regexdev);
214 static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
216 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
217 PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
224 static struct rte_pci_driver mlx5_regex_driver = {
226 .name = "mlx5_regex",
228 .id_table = mlx5_regex_pci_id_map,
229 .probe = mlx5_regex_pci_probe,
230 .remove = mlx5_regex_pci_remove,
234 RTE_INIT(rte_mlx5_regex_init)
237 rte_pci_register(&mlx5_regex_driver);
240 RTE_LOG_REGISTER(mlx5_regex_logtype, pmd.regex.mlx5, NOTICE)
241 RTE_PMD_EXPORT_NAME(net_mlx5_regex, __COUNTER__);
242 RTE_PMD_REGISTER_PCI_TABLE(net_mlx5_regex, mlx5_regex_pci_id_map);
243 RTE_PMD_REGISTER_KMOD_DEP(net_mlx5_regex, "* ib_uverbs & mlx5_core & mlx5_ib");