From: Ori Kam Date: Mon, 20 Jul 2020 06:26:13 +0000 (+0000) Subject: regex/mlx5: add send queue X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=92f2c6a30fe0;p=dpdk.git regex/mlx5: add send queue This commit introduce the SQ creation. The SQ is used for enqueuing a job. In order to support out of order matches, we create number os SQ per one application QP. Signed-off-by: Ori Kam --- diff --git a/drivers/regex/mlx5/mlx5_regex.h b/drivers/regex/mlx5/mlx5_regex.h index abcbc6788c..1cbbb168ae 100644 --- a/drivers/regex/mlx5/mlx5_regex.h +++ b/drivers/regex/mlx5/mlx5_regex.h @@ -21,6 +21,7 @@ struct mlx5_regex_sq { uint32_t dbr_umem; /* Door bell record umem id. */ uint8_t *wqe; /* The SQ ring buffer. */ struct mlx5dv_devx_umem *wqe_umem; /* SQ buffer umem. */ + uint32_t *dbr; }; struct mlx5_regex_cq { @@ -30,6 +31,7 @@ struct mlx5_regex_cq { uint32_t dbr_umem; /* Door bell record umem id. */ volatile struct mlx5_cqe *cqe; /* The CQ ring buffer. */ struct mlx5dv_devx_umem *cqe_umem; /* CQ buffer umem. */ + uint32_t *dbr; }; struct mlx5_regex_qp { diff --git a/drivers/regex/mlx5/mlx5_regex_control.c b/drivers/regex/mlx5/mlx5_regex_control.c index 577965f40b..83d390abcb 100644 --- a/drivers/regex/mlx5/mlx5_regex_control.c +++ b/drivers/regex/mlx5/mlx5_regex_control.c @@ -105,6 +105,9 @@ regex_ctrl_create_cq(struct mlx5_regex_priv *priv, struct mlx5_regex_cq *cq) goto error; } cq->dbr_umem = mlx5_os_get_umem_id(dbr_page->umem); + cq->dbr = (uint32_t *)((uintptr_t)dbr_page->dbrs + + (uintptr_t)cq->dbr_offset); + buf = rte_calloc(NULL, 1, sizeof(struct mlx5_cqe) * cq_size, 4096); if (!buf) { DRV_LOG(ERR, "Can't allocate cqe buffer."); @@ -145,6 +148,170 @@ error: return -rte_errno; } +#ifdef HAVE_IBV_FLOW_DV_SUPPORT +static int +regex_get_pdn(void *pd, uint32_t *pdn) +{ + struct mlx5dv_obj obj; + struct mlx5dv_pd pd_info; + int ret = 0; + + obj.pd.in = pd; + obj.pd.out = &pd_info; + ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD); + if (ret) { + DRV_LOG(DEBUG, "Fail to get PD object info"); + return ret; + } + *pdn = pd_info.pdn; + return 0; +} +#endif + +/** + * create the SQ object. + * + * @param priv + * Pointer to the priv object. + * @param qp + * Pointer to the QP element + * @param q_ind + * The index of the queue. + * @param log_nb_desc + * Log 2 of the number of descriptors to be used. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +regex_ctrl_create_sq(struct mlx5_regex_priv *priv, struct mlx5_regex_qp *qp, + uint16_t q_ind, uint16_t log_nb_desc) +{ +#ifdef HAVE_IBV_FLOW_DV_SUPPORT + struct mlx5_devx_create_sq_attr attr = { 0 }; + struct mlx5_devx_modify_sq_attr modify_attr = { 0 }; + struct mlx5_devx_wq_attr *wq_attr = &attr.wq_attr; + struct mlx5_devx_dbr_page *dbr_page = NULL; + struct mlx5_regex_sq *sq = &qp->sqs[q_ind]; + void *buf = NULL; + uint32_t sq_size; + uint32_t pd_num = 0; + int ret; + + sq->log_nb_desc = log_nb_desc; + sq_size = 1 << sq->log_nb_desc; + sq->dbr_offset = mlx5_get_dbr(priv->ctx, &priv->dbrpgs, &dbr_page); + if (sq->dbr_offset < 0) { + DRV_LOG(ERR, "Can't allocate sq door bell record."); + rte_errno = ENOMEM; + goto error; + } + sq->dbr_umem = mlx5_os_get_umem_id(dbr_page->umem); + sq->dbr = (uint32_t *)((uintptr_t)dbr_page->dbrs + + (uintptr_t)sq->dbr_offset); + + buf = rte_calloc(NULL, 1, 64 * sq_size, 4096); + if (!buf) { + DRV_LOG(ERR, "Can't allocate wqe buffer."); + rte_errno = ENOMEM; + goto error; + } + sq->wqe = buf; + sq->wqe_umem = mlx5_glue->devx_umem_reg(priv->ctx, buf, 64 * sq_size, + 7); + if (!sq->wqe_umem) { + DRV_LOG(ERR, "Can't register wqe mem."); + rte_errno = ENOMEM; + goto error; + } + attr.state = MLX5_SQC_STATE_RST; + attr.tis_lst_sz = 0; + attr.tis_num = 0; + attr.user_index = q_ind; + attr.cqn = qp->cq.obj->id; + wq_attr->uar_page = priv->uar->page_id; + regex_get_pdn(priv->pd, &pd_num); + wq_attr->pd = pd_num; + wq_attr->wq_type = MLX5_WQ_TYPE_CYCLIC; + wq_attr->dbr_umem_id = sq->dbr_umem; + wq_attr->dbr_addr = sq->dbr_offset; + wq_attr->dbr_umem_valid = 1; + wq_attr->wq_umem_id = mlx5_os_get_umem_id(sq->wqe_umem); + wq_attr->wq_umem_offset = 0; + wq_attr->wq_umem_valid = 1; + wq_attr->log_wq_stride = 6; + wq_attr->log_wq_sz = sq->log_nb_desc; + sq->obj = mlx5_devx_cmd_create_sq(priv->ctx, &attr); + if (!sq->obj) { + DRV_LOG(ERR, "Can't create sq object."); + rte_errno = ENOMEM; + goto error; + } + modify_attr.state = MLX5_SQC_STATE_RDY; + ret = mlx5_devx_cmd_modify_sq(sq->obj, &modify_attr); + if (ret) { + DRV_LOG(ERR, "Can't change sq state to ready."); + rte_errno = ENOMEM; + goto error; + } + + return 0; +error: + if (sq->wqe_umem) + mlx5_glue->devx_umem_dereg(sq->wqe_umem); + if (buf) + rte_free(buf); + if (sq->dbr_offset) + mlx5_release_dbr(&priv->dbrpgs, sq->dbr_umem, sq->dbr_offset); + return -rte_errno; +#else + (void)priv; + (void)qp; + (void)q_ind; + (void)log_nb_desc; + DRV_LOG(ERR, "Cannot get pdn - no DV support."); + return -ENOTSUP; +#endif +} + +/** + * Destroy the SQ object. + * + * @param priv + * Pointer to the priv object. + * @param qp + * Pointer to the QP element + * @param q_ind + * The index of the queue. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +regex_ctrl_destroy_sq(struct mlx5_regex_priv *priv, struct mlx5_regex_qp *qp, + uint16_t q_ind) +{ + struct mlx5_regex_sq *sq = &qp->sqs[q_ind]; + + if (sq->wqe_umem) { + mlx5_glue->devx_umem_dereg(sq->wqe_umem); + sq->wqe_umem = NULL; + } + if (sq->wqe) { + rte_free((void *)(uintptr_t)sq->wqe); + sq->wqe = NULL; + } + if (sq->dbr_offset) { + mlx5_release_dbr(&priv->dbrpgs, sq->dbr_umem, sq->dbr_offset); + sq->dbr_offset = -1; + } + if (sq->obj) { + mlx5_devx_cmd_destroy(sq->obj); + sq->obj = NULL; + } + return 0; +} + /** * Setup the qp. * @@ -164,7 +331,9 @@ mlx5_regex_qp_setup(struct rte_regexdev *dev, uint16_t qp_ind, { struct mlx5_regex_priv *priv = dev->data->dev_private; struct mlx5_regex_qp *qp; + int i; int ret; + uint16_t log_desc; qp = &priv->qps[qp_ind]; qp->flags = cfg->qp_conf_flags; @@ -181,15 +350,25 @@ mlx5_regex_qp_setup(struct rte_regexdev *dev, uint16_t qp_ind, rte_errno = ENOMEM; return -rte_errno; } + log_desc = rte_log2_u32(qp->nb_desc / qp->nb_obj); ret = regex_ctrl_create_cq(priv, &qp->cq); if (ret) { DRV_LOG(ERR, "Can't create cq."); goto error; } + for (i = 0; i < qp->nb_obj; i++) { + ret = regex_ctrl_create_sq(priv, qp, i, log_desc); + if (ret) { + DRV_LOG(ERR, "Can't create sq."); + goto error; + } + } return 0; error: regex_ctrl_destroy_cq(priv, &qp->cq); + for (i = 0; i < qp->nb_obj; i++) + ret = regex_ctrl_destroy_sq(priv, qp, i); return -rte_errno; }