* Copyright 2020 Mellanox Technologies, Ltd
*/
+#include <rte_malloc.h>
+#include <rte_log.h>
+#include <rte_errno.h>
+#include <rte_bus_pci.h>
+#include <rte_pci.h>
+#include <rte_regexdev.h>
+#include <rte_regexdev_core.h>
+#include <rte_regexdev_driver.h>
+
+#include <mlx5_glue.h>
+#include <mlx5_devx_cmds.h>
+#include <mlx5_prm.h>
+
#include "mlx5_regex.h"
+#include "mlx5_regex_utils.h"
+#include "mlx5_rxp_csrs.h"
+
+int mlx5_regex_logtype;
+
+const struct rte_regexdev_ops mlx5_regexdev_ops = {
+ .dev_info_get = mlx5_regex_info_get,
+ .dev_configure = mlx5_regex_configure,
+ .dev_db_import = mlx5_regex_rules_db_import,
+ .dev_qp_setup = mlx5_regex_qp_setup,
+};
+
+static struct ibv_device *
+mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
+{
+ int n;
+ struct ibv_device **ibv_list = mlx5_glue->get_device_list(&n);
+ struct ibv_device *ibv_match = NULL;
+
+ if (!ibv_list) {
+ rte_errno = ENOSYS;
+ return NULL;
+ }
+ while (n-- > 0) {
+ struct rte_pci_addr pci_addr;
+
+ DRV_LOG(DEBUG, "Checking device \"%s\"..", ibv_list[n]->name);
+ if (mlx5_dev_to_pci_addr(ibv_list[n]->ibdev_path, &pci_addr))
+ continue;
+ if (rte_pci_addr_cmp(addr, &pci_addr))
+ continue;
+ ibv_match = ibv_list[n];
+ break;
+ }
+ if (!ibv_match)
+ rte_errno = ENOENT;
+ mlx5_glue->free_device_list(ibv_list);
+ return ibv_match;
+}
+static int
+mlx5_regex_engines_status(struct ibv_context *ctx, int num_engines)
+{
+ uint32_t fpga_ident = 0;
+ int err;
+ int i;
+
+ for (i = 0; i < num_engines; i++) {
+ err = mlx5_devx_regex_register_read(ctx, i,
+ MLX5_RXP_CSR_IDENTIFIER,
+ &fpga_ident);
+ fpga_ident = (fpga_ident & (0x0000FFFF));
+ if (err || fpga_ident != MLX5_RXP_IDENTIFIER) {
+ DRV_LOG(ERR, "Failed setup RXP %d err %d database "
+ "memory 0x%x", i, err, fpga_ident);
+ if (!err)
+ err = EINVAL;
+ return err;
+ }
+ }
+ return 0;
+}
+
+static void
+mlx5_regex_get_name(char *name, struct rte_pci_device *pci_dev __rte_unused)
+{
+ sprintf(name, "mlx5_regex_%02x:%02x.%02x", pci_dev->addr.bus,
+ pci_dev->addr.devid, pci_dev->addr.function);
+}
+
+static int
+mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+ struct rte_pci_device *pci_dev)
+{
+ struct ibv_device *ibv;
+ struct mlx5_regex_priv *priv = NULL;
+ struct ibv_context *ctx = NULL;
+ struct mlx5_hca_attr attr;
+ char name[RTE_REGEXDEV_NAME_MAX_LEN];
+ int ret;
+
+ ibv = mlx5_regex_get_ib_device_match(&pci_dev->addr);
+ if (!ibv) {
+ DRV_LOG(ERR, "No matching IB device for PCI slot "
+ PCI_PRI_FMT ".", pci_dev->addr.domain,
+ pci_dev->addr.bus, pci_dev->addr.devid,
+ pci_dev->addr.function);
+ return -rte_errno;
+ }
+ DRV_LOG(INFO, "PCI information matches for device \"%s\".",
+ ibv->name);
+ ctx = mlx5_glue->dv_open_device(ibv);
+ if (!ctx) {
+ DRV_LOG(ERR, "Failed to open IB device \"%s\".", ibv->name);
+ rte_errno = ENODEV;
+ return -rte_errno;
+ }
+ ret = mlx5_devx_cmd_query_hca_attr(ctx, &attr);
+ if (ret) {
+ DRV_LOG(ERR, "Unable to read HCA capabilities.");
+ rte_errno = ENOTSUP;
+ goto error;
+ } else if (!attr.regex || attr.regexp_num_of_engines == 0) {
+ DRV_LOG(ERR, "Not enough capabilities to support RegEx, maybe "
+ "old FW/OFED version?");
+ rte_errno = ENOTSUP;
+ goto error;
+ }
+ if (mlx5_regex_engines_status(ctx, 2)) {
+ DRV_LOG(ERR, "RegEx engine error.");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
+ RTE_CACHE_LINE_SIZE);
+ if (!priv) {
+ DRV_LOG(ERR, "Failed to allocate private memory.");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ priv->ctx = ctx;
+ priv->nb_engines = 2; /* attr.regexp_num_of_engines */
+ /* Default RXP programming mode to Shared. */
+ priv->prog_mode = MLX5_RXP_SHARED_PROG_MODE;
+ mlx5_regex_get_name(name, pci_dev);
+ priv->regexdev = rte_regexdev_register(name);
+ if (priv->regexdev == NULL) {
+ DRV_LOG(ERR, "Failed to register RegEx device.");
+ rte_errno = rte_errno ? rte_errno : EINVAL;
+ goto error;
+ }
+ ret = mlx5_glue->devx_query_eqn(ctx, 0, &priv->eqn);
+ if (ret) {
+ DRV_LOG(ERR, "can't query event queue number.");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ priv->uar = mlx5_glue->devx_alloc_uar(ctx, 0);
+ if (!priv->uar) {
+ DRV_LOG(ERR, "can't allocate uar.");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ priv->pd = mlx5_glue->alloc_pd(ctx);
+ if (!priv->pd) {
+ DRV_LOG(ERR, "can't allocate pd.");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ priv->regexdev->dev_ops = &mlx5_regexdev_ops;
+ priv->regexdev->enqueue = mlx5_regexdev_enqueue;
+ priv->regexdev->device = (struct rte_device *)pci_dev;
+ priv->regexdev->data->dev_private = priv;
+ priv->regexdev->state = RTE_REGEXDEV_READY;
+ return 0;
+
+error:
+ if (priv->pd)
+ mlx5_glue->dealloc_pd(priv->pd);
+ if (priv->uar)
+ mlx5_glue->devx_free_uar(priv->uar);
+ if (priv->regexdev)
+ rte_regexdev_unregister(priv->regexdev);
+ if (ctx)
+ mlx5_glue->close_device(ctx);
+ if (priv)
+ rte_free(priv);
+ return -rte_errno;
+}
+
+static int
+mlx5_regex_pci_remove(struct rte_pci_device *pci_dev)
+{
+ char name[RTE_REGEXDEV_NAME_MAX_LEN];
+ struct rte_regexdev *dev;
+ struct mlx5_regex_priv *priv = NULL;
+
+ mlx5_regex_get_name(name, pci_dev);
+ dev = rte_regexdev_get_device_by_name(name);
+ if (!dev)
+ return 0;
+ priv = dev->data->dev_private;
+ if (priv) {
+ if (priv->pd)
+ mlx5_glue->dealloc_pd(priv->pd);
+ if (priv->uar)
+ mlx5_glue->devx_free_uar(priv->uar);
+ if (priv->regexdev)
+ rte_regexdev_unregister(priv->regexdev);
+ if (priv->ctx)
+ mlx5_glue->close_device(priv->ctx);
+ if (priv->regexdev)
+ rte_regexdev_unregister(priv->regexdev);
+ rte_free(priv);
+ }
+ return 0;
+}
+
+static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
+ },
+ {
+ .vendor_id = 0
+ }
+};
+
+static struct rte_pci_driver mlx5_regex_driver = {
+ .driver = {
+ .name = "mlx5_regex",
+ },
+ .id_table = mlx5_regex_pci_id_map,
+ .probe = mlx5_regex_pci_probe,
+ .remove = mlx5_regex_pci_remove,
+ .drv_flags = 0,
+};
+
+RTE_INIT(rte_mlx5_regex_init)
+{
+ if (mlx5_glue)
+ rte_pci_register(&mlx5_regex_driver);
+}
+
+RTE_LOG_REGISTER(mlx5_regex_logtype, pmd.regex.mlx5, NOTICE)
+RTE_PMD_EXPORT_NAME(net_mlx5_regex, __COUNTER__);
+RTE_PMD_REGISTER_PCI_TABLE(net_mlx5_regex, mlx5_regex_pci_id_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_mlx5_regex, "* ib_uverbs & mlx5_core & mlx5_ib");
git.droids-corp.org / dpdk.git / blobdiff