e2b9779df7
Currently, there are no statistics whatsoever present in WBUFF module. To start with, add some basic statistics to the WBUFF module. Change-Id: I63c06cfb8b1430b2e86539f88025e6d74a00012b CRs-Fixed: 3548509
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*
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* Copyright (c) 2018 The Linux Foundation. All rights reserved.
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* DOC: i_wbuff.h
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* wbuff private
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*/
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#ifndef _I_WBUFF_H
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#define _I_WBUFF_H
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#include <qdf_nbuf.h>
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#include <wbuff.h>
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#define WBUFF_MODULE_ID_SHIFT 4
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#define WBUFF_MODULE_ID_BITMASK 0xF0
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#define WBUFF_POOL_ID_SHIFT 1
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#define WBUFF_POOL_ID_BITMASK 0xE
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/**
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* struct wbuff_handle - wbuff handle to the registered module
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* @id: the identifier for the registered module.
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*/
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struct wbuff_handle {
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uint8_t id;
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};
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/**
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* struct wbuff_pool - structure representing wbuff pool
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* @initialized: To identify whether pool is initialized
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* @pool: nbuf pool
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* @buffer_size: size of the buffer in this @pool
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* @pool_id: pool identifier
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* @alloc_success: Successful allocations for this pool
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* @alloc_fail: Failed allocations for this pool
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* @mem_alloc: Memory allocated for this pool
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*/
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struct wbuff_pool {
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bool initialized;
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qdf_nbuf_t pool;
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uint16_t buffer_size;
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uint8_t pool_id;
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uint64_t alloc_success;
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uint64_t alloc_fail;
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uint64_t mem_alloc;
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};
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/**
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* struct wbuff_module - allocation holder for wbuff registered module
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* @registered: To identify whether module is registered
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* @pending_returns: Number of buffers pending to be returned to
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* wbuff by the module
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* @lock: Lock for accessing per module buffer pools
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* @handle: wbuff handle for the registered module
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* @reserve: nbuf headroom to start with
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* @align: alignment for the nbuf
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* @wbuff_pool: pools for all available buffers for the module
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*/
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struct wbuff_module {
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bool registered;
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uint16_t pending_returns;
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qdf_spinlock_t lock;
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struct wbuff_handle handle;
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int reserve;
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int align;
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struct wbuff_pool wbuff_pool[WBUFF_MAX_POOLS];
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};
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/**
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* struct wbuff_holder - allocation holder for wbuff
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* @initialized: to identified whether module is initialized
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* @mod: list of modules
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* @pf_cache: Reference to page frag cache, used for nbuf allocations
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* @wbuff_debugfs_dir: wbuff debugfs root directory
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* @wbuff_stats_dentry: wbuff debugfs stats file
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*/
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struct wbuff_holder {
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bool initialized;
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struct wbuff_module mod[WBUFF_MAX_MODULES];
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qdf_frag_cache_t pf_cache;
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struct dentry *wbuff_debugfs_dir;
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struct dentry *wbuff_stats_dentry;
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};
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#endif /* _WBUFF_H */
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