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,
28 .dev_qp_setup = mlx5_regex_qp_setup,
29 .dev_start = mlx5_regex_start,
30 .dev_stop = mlx5_regex_stop,
31 .dev_close = mlx5_regex_close,
35 mlx5_regex_start(struct rte_regexdev *dev __rte_unused)
41 mlx5_regex_stop(struct rte_regexdev *dev __rte_unused)
47 mlx5_regex_close(struct rte_regexdev *dev __rte_unused)
52 static struct ibv_device *
53 mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
56 struct ibv_device **ibv_list = mlx5_glue->get_device_list(&n);
57 struct ibv_device *ibv_match = NULL;
64 struct rte_pci_addr pci_addr;
66 DRV_LOG(DEBUG, "Checking device \"%s\"..", ibv_list[n]->name);
67 if (mlx5_dev_to_pci_addr(ibv_list[n]->ibdev_path, &pci_addr))
69 if (rte_pci_addr_cmp(addr, &pci_addr))
71 ibv_match = ibv_list[n];
76 mlx5_glue->free_device_list(ibv_list);
80 mlx5_regex_engines_status(struct ibv_context *ctx, int num_engines)
82 uint32_t fpga_ident = 0;
86 for (i = 0; i < num_engines; i++) {
87 err = mlx5_devx_regex_register_read(ctx, i,
88 MLX5_RXP_CSR_IDENTIFIER,
90 fpga_ident = (fpga_ident & (0x0000FFFF));
91 if (err || fpga_ident != MLX5_RXP_IDENTIFIER) {
92 DRV_LOG(ERR, "Failed setup RXP %d err %d database "
93 "memory 0x%x", i, err, fpga_ident);
103 mlx5_regex_get_name(char *name, struct rte_pci_device *pci_dev __rte_unused)
105 sprintf(name, "mlx5_regex_%02x:%02x.%02x", pci_dev->addr.bus,
106 pci_dev->addr.devid, pci_dev->addr.function);
110 mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
111 struct rte_pci_device *pci_dev)
113 struct ibv_device *ibv;
114 struct mlx5_regex_priv *priv = NULL;
115 struct ibv_context *ctx = NULL;
116 struct mlx5_hca_attr attr;
117 char name[RTE_REGEXDEV_NAME_MAX_LEN];
120 ibv = mlx5_regex_get_ib_device_match(&pci_dev->addr);
122 DRV_LOG(ERR, "No matching IB device for PCI slot "
123 PCI_PRI_FMT ".", pci_dev->addr.domain,
124 pci_dev->addr.bus, pci_dev->addr.devid,
125 pci_dev->addr.function);
128 DRV_LOG(INFO, "PCI information matches for device \"%s\".",
130 ctx = mlx5_glue->dv_open_device(ibv);
132 DRV_LOG(ERR, "Failed to open IB device \"%s\".", ibv->name);
136 ret = mlx5_devx_cmd_query_hca_attr(ctx, &attr);
138 DRV_LOG(ERR, "Unable to read HCA capabilities.");
141 } else if (!attr.regex || attr.regexp_num_of_engines == 0) {
142 DRV_LOG(ERR, "Not enough capabilities to support RegEx, maybe "
143 "old FW/OFED version?");
147 if (mlx5_regex_engines_status(ctx, 2)) {
148 DRV_LOG(ERR, "RegEx engine error.");
152 priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
153 RTE_CACHE_LINE_SIZE);
155 DRV_LOG(ERR, "Failed to allocate private memory.");
160 priv->nb_engines = 2; /* attr.regexp_num_of_engines */
161 /* Default RXP programming mode to Shared. */
162 priv->prog_mode = MLX5_RXP_SHARED_PROG_MODE;
163 mlx5_regex_get_name(name, pci_dev);
164 priv->regexdev = rte_regexdev_register(name);
165 if (priv->regexdev == NULL) {
166 DRV_LOG(ERR, "Failed to register RegEx device.");
167 rte_errno = rte_errno ? rte_errno : EINVAL;
170 ret = mlx5_glue->devx_query_eqn(ctx, 0, &priv->eqn);
172 DRV_LOG(ERR, "can't query event queue number.");
176 priv->uar = mlx5_glue->devx_alloc_uar(ctx, 0);
178 DRV_LOG(ERR, "can't allocate uar.");
182 priv->pd = mlx5_glue->alloc_pd(ctx);
184 DRV_LOG(ERR, "can't allocate pd.");
188 priv->regexdev->dev_ops = &mlx5_regexdev_ops;
189 priv->regexdev->enqueue = mlx5_regexdev_enqueue;
190 priv->regexdev->dequeue = mlx5_regexdev_dequeue;
191 priv->regexdev->device = (struct rte_device *)pci_dev;
192 priv->regexdev->data->dev_private = priv;
193 priv->regexdev->state = RTE_REGEXDEV_READY;
198 mlx5_glue->dealloc_pd(priv->pd);
200 mlx5_glue->devx_free_uar(priv->uar);
202 rte_regexdev_unregister(priv->regexdev);
205 mlx5_glue->close_device(ctx);
212 mlx5_regex_pci_remove(struct rte_pci_device *pci_dev)
214 char name[RTE_REGEXDEV_NAME_MAX_LEN];
215 struct rte_regexdev *dev;
216 struct mlx5_regex_priv *priv = NULL;
218 mlx5_regex_get_name(name, pci_dev);
219 dev = rte_regexdev_get_device_by_name(name);
222 priv = dev->data->dev_private;
225 mlx5_glue->dealloc_pd(priv->pd);
227 mlx5_glue->devx_free_uar(priv->uar);
229 rte_regexdev_unregister(priv->regexdev);
231 mlx5_glue->close_device(priv->ctx);
233 rte_regexdev_unregister(priv->regexdev);
239 static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
241 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
242 PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
249 static struct rte_pci_driver mlx5_regex_driver = {
251 .name = "mlx5_regex",
253 .id_table = mlx5_regex_pci_id_map,
254 .probe = mlx5_regex_pci_probe,
255 .remove = mlx5_regex_pci_remove,
259 RTE_INIT(rte_mlx5_regex_init)
262 rte_pci_register(&mlx5_regex_driver);
265 RTE_LOG_REGISTER(mlx5_regex_logtype, pmd.regex.mlx5, NOTICE)
266 RTE_PMD_EXPORT_NAME(net_mlx5_regex, __COUNTER__);
267 RTE_PMD_REGISTER_PCI_TABLE(net_mlx5_regex, mlx5_regex_pci_id_map);
268 RTE_PMD_REGISTER_KMOD_DEP(net_mlx5_regex, "* ib_uverbs & mlx5_core & mlx5_ib");