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173 lines
6.1 KiB
C
173 lines
6.1 KiB
C
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/**
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****************************************************************************************
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*
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* @file uwifi_txq.h
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*
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* @brief api of txq operation
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*
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* Copyright (C) ASR
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*
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****************************************************************************************
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*/
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#ifndef _UWIFI_TXQ_H_
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#define _UWIFI_TXQ_H_
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#include <stdint.h>
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#include <stdbool.h>
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#include "uwifi_types.h"
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#include "uwifi_kernel.h"
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#include "uwifi_ops_adapter.h"
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#include "uwifi_tx.h"
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//#define NX_FIRST_VIF_TXQ_IDX (NX_REMOTE_STA_MAX * NX_NB_TXQ_PER_STA)
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//#define NX_FIRST_BCMC_TXQ_IDX NX_FIRST_VIF_TXQ_IDX
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//#define NX_FIRST_UNK_TXQ_IDX (NX_FIRST_BCMC_TXQ_IDX + NX_VIRT_DEV_MAX)
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#define NX_BCMC_TXQ_TYPE 0
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#define NX_UNK_TXQ_TYPE 1
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/**
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* Each data TXQ is a netdev queue. TXQ to send MGT are not data TXQ as
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* they did not recieved buffer from netdev interface.
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* Need to allocate the maximum case.
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* AP : all STAs + 1 BC/MC
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*/
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#define NX_NB_NDEV_TXQ ((NX_NB_TID_PER_STA * NX_REMOTE_STA_MAX) + 1 )
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//#define NX_BCMC_TXQ_NDEV_IDX (NX_NB_TID_PER_STA * NX_REMOTE_STA_MAX)
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#define NX_STA_NDEV_IDX(tid, sta_idx) ((tid) + (sta_idx) * NX_NB_TID_PER_STA)
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#define NDEV_NO_TXQ 0xffff
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#if (NX_NB_NDEV_TXQ >= NDEV_NO_TXQ)
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#error("Need to increase struct asr_txq->ndev_idx size")
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#endif
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/* stop netdev queue when number of queued buffers if greater than this */
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#define ASR_NDEV_FLOW_CTRL_STOP 200
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/* restart netdev queue when number of queued buffers is lower than this */
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#define ASR_NDEV_FLOW_CTRL_RESTART 100
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#define TXQ_INACTIVE 0xffff
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#if (NX_NB_TXQ >= TXQ_INACTIVE)
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#error("Need to increase struct asr_txq->idx size")
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#endif
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#define NX_TXQ_INITIAL_CREDITS 4
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/**
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* enum asr_push_flags - Flags of pushed buffer
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*
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* @ASR_PUSH_RETRY Pushing a buffer for retry
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* @ASR_PUSH_IMMEDIATE Pushing a buffer without queuing it first
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*/
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enum asr_push_flags {
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ASR_PUSH_RETRY = BIT(0),
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ASR_PUSH_IMMEDIATE = BIT(1),
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};
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/**
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* enum asr_txq_flags - TXQ status flag
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*
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* @ASR_TXQ_IN_HWQ_LIST The queue is scheduled for transmission
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* @ASR_TXQ_STOP_FULL No more credits for the queue
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* @ASR_TXQ_STOP_CSA CSA is in progress
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* @ASR_TXQ_STOP_STA_PS Destiniation sta is currently in power save mode
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* @ASR_TXQ_STOP_VIF_PS Vif owning this queue is currently in power save mode
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* @ASR_TXQ_STOP_CHAN Channel of this queue is not the current active channel
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* @ASR_TXQ_STOP_MU_POS TXQ is stopped waiting for all the buffers pushed to
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* fw to be confirmed
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* @ASR_TXQ_STOP All possible reason to have a txq stopped
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* @ASR_TXQ_NDEV_FLOW_CTRL associated netdev queue is currently stopped.
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* Note: when a TXQ is flowctrl it is NOT stopped
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*/
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enum asr_txq_flags {
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ASR_TXQ_IN_HWQ_LIST = BIT(0),
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ASR_TXQ_STOP_FULL = BIT(1),
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ASR_TXQ_STOP_CSA = BIT(2),
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ASR_TXQ_STOP_STA_PS = BIT(3),
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ASR_TXQ_STOP_VIF_PS = BIT(4),
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ASR_TXQ_STOP_CHAN = BIT(5),
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#ifdef CONFIG_TWT
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ASR_TXQ_STOP_TWT = BIT(6), // sta mode, txq is stopped when outside of TWT SP.
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#else
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ASR_TXQ_STOP_MU_POS = BIT(6),
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#endif
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ASR_TXQ_STOP = (ASR_TXQ_STOP_FULL | ASR_TXQ_STOP_CSA |
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ASR_TXQ_STOP_STA_PS | ASR_TXQ_STOP_VIF_PS |
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ASR_TXQ_STOP_CHAN
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#ifdef CONFIG_TWT
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| ASR_TXQ_STOP_TWT
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#endif
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) ,
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ASR_TXQ_NDEV_FLOW_CTRL = BIT(7),
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};
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#define ASR_TXQ_GROUP_ID(txq) 0
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#define ASR_TXQ_POS_ID(txq) 0
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static inline bool asr_txq_is_stopped(struct asr_txq *txq)
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{
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return (txq->status & ASR_TXQ_STOP);
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}
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static inline bool asr_txq_is_full(struct asr_txq *txq)
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{
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return (txq->status & ASR_TXQ_STOP_FULL);
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}
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static inline bool asr_txq_is_scheduled(struct asr_txq *txq)
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{
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return (txq->status & ASR_TXQ_IN_HWQ_LIST);
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}
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struct asr_txq *asr_txq_sta_get(struct asr_sta *sta, uint8_t tid, int *idx,
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struct asr_hw * asr_hw);
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struct asr_txq *asr_txq_vif_get(struct asr_vif *vif, uint8_t type, int *idx);
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/* return status bits related to the vif */
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static inline uint8_t asr_txq_vif_get_status(struct asr_vif *asr_vif)
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{
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struct asr_txq *txq = asr_txq_vif_get(asr_vif, 0, NULL);
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return (txq->status & (ASR_TXQ_STOP_CHAN | ASR_TXQ_STOP_VIF_PS));
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}
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void asr_txq_deinit(struct asr_hw *asr_hw, struct asr_txq *txq);
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void asr_txq_vif_init(struct asr_hw * asr_hw, struct asr_vif *vif,
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uint8_t status);
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void asr_txq_vif_deinit(struct asr_hw * asr_hw, struct asr_vif *vif);
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void asr_txq_sta_init(struct asr_hw * asr_hw, struct asr_sta *asr_sta,
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uint8_t status);
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void asr_txq_sta_deinit(struct asr_hw * asr_hw, struct asr_sta *asr_sta);
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void asr_txq_offchan_init(struct asr_vif *asr_vif);
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void asr_txq_offchan_deinit(struct asr_vif *asr_vif);
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void asr_txq_add_to_hw_list(struct asr_txq *txq);
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void asr_txq_del_from_hw_list(struct asr_txq *txq);
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void asr_txq_stop(struct asr_txq *txq, uint16_t reason);
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void asr_txq_start(struct asr_txq *txq, uint16_t reason);
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void asr_txq_vif_start(struct asr_vif *vif, uint16_t reason,
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struct asr_hw *asr_hw);
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void asr_txq_vif_stop(struct asr_vif *vif, uint16_t reason,
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struct asr_hw *asr_hw);
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void asr_txq_sta_start(struct asr_sta *sta, uint16_t reason,
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struct asr_hw *asr_hw);
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void asr_txq_sta_stop(struct asr_sta *sta, uint16_t reason,
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struct asr_hw *asr_hw);
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void asr_txq_offchan_start(struct asr_hw *asr_hw);
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void asr_txq_sta_switch_vif(struct asr_sta *sta, struct asr_vif *old_vif,
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struct asr_vif *new_vif);
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int asr_txq_queue_skb(struct sk_buff *skb, struct asr_txq *txq,
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struct asr_hw *asr_hw, bool retry);
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void asr_txq_confirm_any(struct asr_hw *asr_hw, struct asr_txq *txq,
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struct asr_hwq *hwq, struct asr_sw_txhdr *sw_txhdr);
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void asr_hwq_init(struct asr_hw *asr_hw);
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void asr_hwq_process(struct asr_hw *asr_hw, struct asr_hwq *hwq);
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void asr_hwq_process_all(struct asr_hw *asr_hw);
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struct sk_buff *skb_dequeue(struct sk_buff_head *list);
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#endif /* _UWIFI_TXQ_H_ */
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