@@ -10,6 +10,7 @@ LIB = librte_pmd_mlx5_regex.a
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_REGEX_PMD) += mlx5_regex.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_REGEX_PMD) += mlx5_rxp.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_REGEX_PMD) += mlx5_regex_control.c
+SRCS-$(CONFIG_RTE_LIBRTE_MLX5_REGEX_PMD) += mlx5_regex_fastpath.c
# Basic CFLAGS.
CFLAGS += -O3
@@ -13,6 +13,7 @@ sources = files(
'mlx5_regex.c',
'mlx5_rxp.c',
'mlx5_regex_control.c',
+ 'mlx5_regex_fastpath.c',
)
cflags_options = [
'-std=c11',
@@ -44,6 +44,11 @@ struct mlx5_regex_qp {
struct mlx5_regex_sq *sqs; /* Pointer to sq array. */
uint16_t nb_obj; /* Number of sq objects. */
struct mlx5_regex_cq cq; /* CQ struct. */
+ uint32_t free_sqs;
+ struct mlx5_regex_job *jobs;
+ struct ibv_mr *metadata;
+ struct ibv_mr *inputs;
+ struct ibv_mr *outputs;
};
struct mlx5_regex_db {
@@ -82,4 +87,7 @@ int mlx5_regex_qp_setup(struct rte_regexdev *dev, uint16_t qp_ind,
const struct rte_regexdev_qp_conf *cfg);
int mlx5_regex_rules_db_import(struct rte_regexdev *dev,
const char *rule_db, uint32_t rule_db_len);
+
+/* mlx5_regex_fastpath.c */
+int mlx5_regexdev_setup_fastpath(struct mlx5_regex_priv *priv, uint32_t qp_id);
#endif /* MLX5_REGEX_H */
@@ -357,6 +357,8 @@
goto error;
}
}
+
+ mlx5_regexdev_setup_fastpath(priv, qp_ind);
return 0;
error:
new file mode 100644
@@ -0,0 +1,192 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2019 Mellanox Technologies, Ltd
+ */
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include <rte_malloc.h>
+#include <rte_log.h>
+#include <rte_errno.h>
+#include <rte_bus_pci.h>
+#include <rte_pci.h>
+#include <rte_regexdev_driver.h>
+#include <rte_mbuf.h>
+
+
+#include <infiniband/mlx5dv.h>
+#include <mlx5_glue.h>
+#include <mlx5_common.h>
+#include <mlx5_prm.h>
+#include <strings.h>
+
+#include "mlx5_regex_utils.h"
+#include "mlx5_rxp.h"
+#include "mlx5_regex.h"
+
+/* Verbs header. */
+/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+#include <infiniband/mlx5dv.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-Wpedantic"
+#endif
+
+#define MAX_WQE_INDEX 0xffff
+#define MLX5_REGEX_METADATA_SIZE 64
+#define MLX5_REGEX_MAX_INPUT (1<<14)
+#define MLX5_REGEX_MAX_OUTPUT (1<<11)
+
+
+static inline uint32_t
+sq_size_get(struct mlx5_regex_sq *sq)
+{
+ return (1U << sq->log_nb_desc);
+}
+static inline uint32_t
+cq_size_get(struct mlx5_regex_cq *cq)
+{
+ return (1U << cq->log_nb_desc);
+}
+
+struct mlx5_regex_job {
+ uint64_t user_id;
+ uint8_t *input;
+ volatile uint8_t *output;
+ volatile uint8_t *metadata;
+} __rte_cached_aligned;
+
+
+static MLX5DV_ALWAYS_INLINE
+void mlx5dv_set_metadata_seg(struct mlx5_wqe_metadata_seg *seg,
+ uint32_t mmo_control_31_0, uint32_t lkey,
+ uintptr_t address)
+{
+ seg->mmo_control_31_0 = htobe32(mmo_control_31_0);
+ seg->lkey = htobe32(lkey);
+ seg->addr = htobe64(address);
+}
+
+static void
+setup_sqs(struct mlx5_regex_qp *queue)
+{
+ size_t sqid, entry;
+ uint32_t job_id;
+ for (sqid = 0; sqid < queue->nb_obj; sqid++) {
+ struct mlx5_regex_sq *sq = &queue->sqs[sqid];
+ uint8_t *wqe = (uint8_t *)sq->wqe;
+ for (entry = 0 ; entry < sq_size_get(sq); entry++) {
+ job_id = sqid * sq_size_get(sq) + entry;
+ struct mlx5_regex_job *job = &queue->jobs[job_id];
+
+ mlx5dv_set_metadata_seg((struct mlx5_wqe_metadata_seg *)
+ (wqe + 16),
+ 0, queue->metadata->lkey,
+ (uintptr_t)job->metadata);
+ mlx5dv_set_data_seg((struct mlx5_wqe_data_seg *)
+ (wqe + 32),
+ 0, queue->inputs->lkey,
+ (uintptr_t)job->input);
+ mlx5dv_set_data_seg((struct mlx5_wqe_data_seg *)
+ (wqe + 48),
+ 1 << 11, queue->outputs->lkey,
+ (uintptr_t)job->output);
+ wqe += 64;
+ }
+ queue->free_sqs |= 1 << sqid;
+ }
+}
+
+static int
+setup_buffers(struct mlx5_regex_qp *qp, struct ibv_pd *pd)
+{
+ int i, err;
+
+ void *ptr = rte_calloc(__func__, qp->nb_desc,
+ MLX5_REGEX_METADATA_SIZE,
+ MLX5_REGEX_METADATA_SIZE);
+ if (!ptr)
+ return -ENOMEM;
+
+ qp->metadata = mlx5_glue->reg_mr(pd, ptr,
+ MLX5_REGEX_METADATA_SIZE*qp->nb_desc,
+ IBV_ACCESS_LOCAL_WRITE);
+ if (!qp->metadata) {
+ rte_free(ptr);
+ return -EINVAL;
+ }
+ ptr = rte_calloc(__func__, qp->nb_desc,
+ MLX5_REGEX_MAX_INPUT,
+ MLX5_REGEX_MAX_INPUT);
+
+ if (!ptr) {
+ err = -ENOMEM;
+ goto err_input;
+ }
+ qp->inputs = mlx5_glue->reg_mr(pd, ptr,
+ MLX5_REGEX_MAX_INPUT*qp->nb_desc,
+ IBV_ACCESS_LOCAL_WRITE);
+ if (!qp->inputs) {
+ rte_free(ptr);
+ err = -EINVAL;
+ goto err_input;
+ }
+
+ ptr = rte_calloc(__func__, qp->nb_desc,
+ MLX5_REGEX_MAX_OUTPUT,
+ MLX5_REGEX_MAX_OUTPUT);
+ if (!ptr) {
+ err = -ENOMEM;
+ goto err_output;
+ }
+ qp->outputs = mlx5_glue->reg_mr(pd, ptr,
+ MLX5_REGEX_MAX_OUTPUT*qp->nb_desc,
+ IBV_ACCESS_LOCAL_WRITE);
+ if (!qp->outputs) {
+ rte_free(ptr);
+ err = -EINVAL;
+ goto err_output;
+ }
+
+ /* distribute buffers to jobs */
+ for (i = 0; i < qp->nb_desc; i++) {
+ qp->jobs[i].input =
+ (uint8_t *)qp->inputs->addr +
+ (i%qp->nb_desc)*MLX5_REGEX_MAX_INPUT;
+ qp->jobs[i].output =
+ (uint8_t *)qp->outputs->addr +
+ (i%qp->nb_desc)*MLX5_REGEX_MAX_OUTPUT;
+ qp->jobs[i].metadata =
+ (uint8_t *)qp->metadata->addr +
+ (i%qp->nb_desc)*MLX5_REGEX_METADATA_SIZE;
+ }
+ return 0;
+
+err_output:
+ ptr = qp->inputs->addr;
+ rte_free(ptr);
+ mlx5_glue->dereg_mr(qp->inputs);
+err_input:
+ ptr = qp->metadata->addr;
+ rte_free(ptr);
+ mlx5_glue->dereg_mr(qp->metadata);
+ return err;
+}
+
+int
+mlx5_regexdev_setup_fastpath(struct mlx5_regex_priv *priv, uint32_t qp_id)
+{
+ struct mlx5_regex_qp *qp = &priv->qps[qp_id];
+ int err;
+
+ qp->jobs = rte_calloc(__func__, qp->nb_desc, sizeof(*qp->jobs),
+ sizeof(*qp->jobs));
+ if (!qp->jobs)
+ return -ENOMEM;
+ err = setup_buffers(qp, priv->pd);
+ if (err)
+ return err;
+ setup_sqs(qp);
+ return 0;
+}