linux/drivers/infiniband/hw/irdma/ws.c

// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2017 - 2021 Intel Corporation */
#include "osdep.h"
#include "hmc.h"
#include "defs.h"
#include "type.h"
#include "protos.h"

#include "ws.h"

/**
 * irdma_alloc_node - Allocate a WS node and init
 * @vsi: vsi pointer
 * @user_pri: user priority
 * @node_type: Type of node, leaf or parent
 * @parent: parent node pointer
 */
static struct irdma_ws_node *irdma_alloc_node(struct irdma_sc_vsi *vsi,
					      u8 user_pri,
					      enum irdma_ws_node_type node_type,
					      struct irdma_ws_node *parent)
{ … }

/**
 * irdma_free_node - Free a WS node
 * @vsi: VSI stricture of device
 * @node: Pointer to node to free
 */
static void irdma_free_node(struct irdma_sc_vsi *vsi,
			    struct irdma_ws_node *node)
{ … }

/**
 * irdma_ws_cqp_cmd - Post CQP work scheduler node cmd
 * @vsi: vsi pointer
 * @node: pointer to node
 * @cmd: add, remove or modify
 */
static int irdma_ws_cqp_cmd(struct irdma_sc_vsi *vsi,
			    struct irdma_ws_node *node, u8 cmd)
{ … }

/**
 * ws_find_node - Find SC WS node based on VSI id or TC
 * @parent: parent node of First VSI or TC node
 * @match_val: value to match
 * @type: match type VSI/TC
 */
static struct irdma_ws_node *ws_find_node(struct irdma_ws_node *parent,
					  u16 match_val,
					  enum irdma_ws_match_type type)
{ … }

/**
 * irdma_tc_in_use - Checks to see if a leaf node is in use
 * @vsi: vsi pointer
 * @user_pri: user priority
 */
static bool irdma_tc_in_use(struct irdma_sc_vsi *vsi, u8 user_pri)
{ … }

/**
 * irdma_remove_leaf - Remove leaf node unconditionally
 * @vsi: vsi pointer
 * @user_pri: user priority
 */
static void irdma_remove_leaf(struct irdma_sc_vsi *vsi, u8 user_pri)
{ … }

/**
 * irdma_ws_add - Build work scheduler tree, set RDMA qs_handle
 * @vsi: vsi pointer
 * @user_pri: user priority
 */
int irdma_ws_add(struct irdma_sc_vsi *vsi, u8 user_pri)
{ … }

/**
 * irdma_ws_remove - Free WS scheduler node, update WS tree
 * @vsi: vsi pointer
 * @user_pri: user priority
 */
void irdma_ws_remove(struct irdma_sc_vsi *vsi, u8 user_pri)
{ … }

/**
 * irdma_ws_reset - Reset entire WS tree
 * @vsi: vsi pointer
 */
void irdma_ws_reset(struct irdma_sc_vsi *vsi)
{ … }