regex/mlx5: support combined rule file
[dpdk.git] / drivers / regex / mlx5 / mlx5_regex.c
index ce2216b..f1fd911 100644 (file)
@@ -5,25 +5,53 @@
 #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_common_pci.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"
+
+#define MLX5_REGEX_DRIVER_NAME regex_mlx5
+#define MLX5_REGEX_LOG_NAME    pmd.regex.mlx5
 
 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,
+       .dev_start = mlx5_regex_start,
+       .dev_stop = mlx5_regex_stop,
+       .dev_close = mlx5_regex_close,
 };
 
+int
+mlx5_regex_start(struct rte_regexdev *dev __rte_unused)
+{
+       return 0;
+}
+
+int
+mlx5_regex_stop(struct rte_regexdev *dev __rte_unused)
+{
+       return 0;
+}
+
+int
+mlx5_regex_close(struct rte_regexdev *dev __rte_unused)
+{
+       return 0;
+}
+
 static struct ibv_device *
 mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
 {
@@ -51,6 +79,28 @@ mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
        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)
@@ -69,6 +119,7 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        struct mlx5_hca_attr attr;
        char name[RTE_REGEXDEV_NAME_MAX_LEN];
        int ret;
+       uint32_t val;
 
        ibv = mlx5_regex_get_ib_device_match(&pci_dev->addr);
        if (!ibv) {
@@ -90,21 +141,37 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        if (ret) {
                DRV_LOG(ERR, "Unable to read HCA capabilities.");
                rte_errno = ENOTSUP;
-               goto error;
+               goto dev_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;
+               goto dev_error;
+       }
+       if (mlx5_regex_engines_status(ctx, 2)) {
+               DRV_LOG(ERR, "RegEx engine error.");
+               rte_errno = ENOMEM;
+               goto dev_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;
+               goto dev_error;
        }
        priv->ctx = ctx;
+       priv->nb_engines = 2; /* attr.regexp_num_of_engines */
+       ret = mlx5_devx_regex_register_read(priv->ctx, 0,
+                                           MLX5_RXP_CSR_IDENTIFIER, &val);
+       if (ret) {
+               DRV_LOG(ERR, "CSR read failed!");
+               return -1;
+       }
+       if (val == MLX5_RXP_BF2_IDENTIFIER)
+               priv->is_bf2 = 1;
+       /* 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) {
@@ -112,12 +179,49 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                rte_errno = rte_errno ? rte_errno : EINVAL;
                goto error;
        }
+       /*
+        * This PMD always claims the write memory barrier on UAR
+        * registers writings, it is safe to allocate UAR with any
+        * memory mapping type.
+        */
+       priv->uar = mlx5_devx_alloc_uar(ctx, -1);
+       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->dequeue = mlx5_regexdev_dequeue;
        priv->regexdev->device = (struct rte_device *)pci_dev;
        priv->regexdev->data->dev_private = priv;
+       priv->regexdev->state = RTE_REGEXDEV_READY;
+       priv->mr_scache.reg_mr_cb = mlx5_common_verbs_reg_mr;
+       priv->mr_scache.dereg_mr_cb = mlx5_common_verbs_dereg_mr;
+       ret = mlx5_mr_btree_init(&priv->mr_scache.cache,
+                                MLX5_MR_BTREE_CACHE_N * 2,
+                                rte_socket_id());
+       if (ret) {
+               DRV_LOG(ERR, "MR init tree failed.");
+           rte_errno = ENOMEM;
+               goto error;
+       }
        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);
+dev_error:
        if (ctx)
                mlx5_glue->close_device(ctx);
        if (priv)
@@ -138,6 +242,12 @@ mlx5_regex_pci_remove(struct rte_pci_device *pci_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)
@@ -152,28 +262,36 @@ static const struct rte_pci_id mlx5_regex_pci_id_map[] = {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                                PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
        },
+       {
+               RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+                               PCI_DEVICE_ID_MELLANOX_CONNECTX7BF)
+       },
        {
                .vendor_id = 0
        }
 };
 
-static struct rte_pci_driver mlx5_regex_driver = {
-       .driver = {
-               .name = "mlx5_regex",
+static struct mlx5_pci_driver mlx5_regex_driver = {
+       .driver_class = MLX5_CLASS_REGEX,
+       .pci_driver = {
+               .driver = {
+                       .name = RTE_STR(MLX5_REGEX_DRIVER_NAME),
+               },
+               .id_table = mlx5_regex_pci_id_map,
+               .probe = mlx5_regex_pci_probe,
+               .remove = mlx5_regex_pci_remove,
+               .drv_flags = 0,
        },
-       .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)
 {
+       mlx5_common_init();
        if (mlx5_glue)
-               rte_pci_register(&mlx5_regex_driver);
+               mlx5_pci_driver_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");
+RTE_LOG_REGISTER(mlx5_regex_logtype, MLX5_REGEX_LOG_NAME, NOTICE)
+RTE_PMD_EXPORT_NAME(MLX5_REGEX_DRIVER_NAME, __COUNTER__);
+RTE_PMD_REGISTER_PCI_TABLE(MLX5_REGEX_DRIVER_NAME, mlx5_regex_pci_id_map);
+RTE_PMD_REGISTER_KMOD_DEP(MLX5_REGEX_DRIVER_NAME, "* ib_uverbs & mlx5_core & mlx5_ib");