991ee4defc
Modify the legacy LRO implementation to use the implementation in QDF instead. This is to avoid code duplication and to unify the LRO implementations for Napier and Helium. CRs-Fixed: 2042812 Change-Id: I38e9da3b54392a1c5781133916361aac3875d43d
138 行
3.3 KiB
C
138 行
3.3 KiB
C
/*
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* Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
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*
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* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
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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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* This file was originally distributed by Qualcomm Atheros, Inc.
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* under proprietary terms before Copyright ownership was assigned
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* to the Linux Foundation.
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*/
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/**
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* DOC: Large Receive Offload API
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* This file defines the Large receive offload API.
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*/
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#ifndef _QDF_LRO_H
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#define _QDF_LRO_H
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#include <qdf_nbuf.h>
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#include <i_qdf_lro.h>
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/**
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* @qdf_nbuf_t - Platform indepedent LRO context abstraction
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*/
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typedef __qdf_lro_ctx_t qdf_lro_ctx_t;
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/**
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* qdf_lro_info_s - LRO information
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* @iph: IP header
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* @tcph: TCP header
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*/
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struct qdf_lro_info {
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uint8_t *iph;
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uint8_t *tcph;
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};
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#if defined(FEATURE_LRO)
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/**
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* qdf_lro_init() - LRO initialization function
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*
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* Return: LRO context
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*/
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qdf_lro_ctx_t qdf_lro_init(void);
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/**
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* qdf_lro_deinit() - LRO deinitialization function
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* @lro_ctx: LRO context
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*
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* Return: nothing
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*/
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void qdf_lro_deinit(qdf_lro_ctx_t lro_ctx);
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/**
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* qdf_lro_get_info() - Update the LRO information
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*
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* @lro_ctx: LRO context
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* @nbuf: network buffer
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* @info: LRO related information passed in by the caller
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* @plro_desc: lro information returned as output
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*
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* Look-up the LRO descriptor based on the LRO information and
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* the network buffer provided. Update the skb cb with the
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* descriptor found
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*
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* Return: true: LRO eligible false: LRO ineligible
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*/
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bool qdf_lro_get_info(qdf_lro_ctx_t lro_ctx, qdf_nbuf_t nbuf,
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struct qdf_lro_info *info,
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void **plro_desc);
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/**
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* qdf_lro_flush_pkt() - function to flush the LRO flow
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* @info: LRO related information passed by the caller
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* @lro_ctx: LRO context
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*
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* Flush all the packets aggregated in the LRO manager for the
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* flow indicated by the TCP and IP header
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*
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* Return: none
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*/
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void qdf_lro_flush_pkt(qdf_lro_ctx_t lro_ctx,
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struct qdf_lro_info *info);
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/**
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* qdf_lro_flush() - LRO flush API
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* @lro_ctx: LRO context
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*
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* Flush all the packets aggregated in the LRO manager for all
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* the flows
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*
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* Return: none
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*/
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void qdf_lro_flush(qdf_lro_ctx_t lro_ctx);
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/**
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* qdf_lro_desc_free() - Free the LRO descriptor
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* @desc: LRO descriptor
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* @lro_ctx: LRO context
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*
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* Return the LRO descriptor to the free pool
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*
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* Return: none
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*/
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void qdf_lro_desc_free(qdf_lro_ctx_t lro_ctx, void *desc);
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#else
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static inline qdf_lro_ctx_t qdf_lro_init(void)
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{
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return NULL;
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}
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static inline void qdf_lro_deinit(qdf_lro_ctx_t lro_ctx)
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{
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}
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static inline void qdf_lro_flush(qdf_lro_ctx_t lro_ctx)
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{
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}
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#endif /* FEATURE_LRO */
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#endif
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