common/mlx5: add DevX command to modify RQT

[dpdk.git] / drivers / common / mlx5 / mlx5_devx_cmds.c

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index e372df6..1d3a729 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -863,6 +863,53 @@ mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
        return rqt;
 }
 
+/**
+ * Modify RQT using DevX API.
+ *
+ * @param[in] rqt
+ *   Pointer to RQT DevX object structure.
+ * @param [in] rqt_attr
+ *   Pointer to RQT attributes structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_devx_cmd_modify_rqt(struct mlx5_devx_obj *rqt,
+                        struct mlx5_devx_rqt_attr *rqt_attr)
+{
+       uint32_t inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) +
+                        rqt_attr->rqt_actual_size * sizeof(uint32_t);
+       uint32_t out[MLX5_ST_SZ_DW(modify_rqt_out)] = {0};
+       uint32_t *in = rte_calloc(__func__, 1, inlen, 0);
+       void *rqt_ctx;
+       int i;
+       int ret;
+
+       if (!in) {
+               DRV_LOG(ERR, "Failed to allocate RQT modify IN data.");
+               rte_errno = ENOMEM;
+               return -ENOMEM;
+       }
+       MLX5_SET(modify_rqt_in, in, opcode, MLX5_CMD_OP_MODIFY_RQT);
+       MLX5_SET(modify_rqt_in, in, rqtn, rqt->id);
+       MLX5_SET64(modify_rqt_in, in, modify_bitmask, 0x1);
+       rqt_ctx = MLX5_ADDR_OF(modify_rqt_in, in, rqt_context);
+       MLX5_SET(rqtc, rqt_ctx, list_q_type, rqt_attr->rq_type);
+       MLX5_SET(rqtc, rqt_ctx, rqt_max_size, rqt_attr->rqt_max_size);
+       MLX5_SET(rqtc, rqt_ctx, rqt_actual_size, rqt_attr->rqt_actual_size);
+       for (i = 0; i < rqt_attr->rqt_actual_size; i++)
+               MLX5_SET(rqtc, rqt_ctx, rq_num[i], rqt_attr->rq_list[i]);
+       ret = mlx5_glue->devx_obj_modify(rqt->obj, in, inlen, out, sizeof(out));
+       rte_free(in);
+       if (ret) {
+               DRV_LOG(ERR, "Failed to modify RQT using DevX.");
+               rte_errno = errno;
+               return -rte_errno;
+       }
+       return ret;
+}
+
 /**
  * Create SQ using DevX API.
  *