linux/drivers/net/wireless/mediatek/mt76/dma.c

// SPDX-License-Identifier: ISC
/*
 * Copyright (C) 2016 Felix Fietkau <[email protected]>
 */

#include <linux/dma-mapping.h>
#include "mt76.h"
#include "dma.h"

#if IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED)

#define Q_READ(_q, _field) …

#define Q_WRITE(_q, _field, _val) …

#else

#define Q_READ …
#define Q_WRITE …

#endif

static struct mt76_txwi_cache *
mt76_alloc_txwi(struct mt76_dev *dev)
{ … }

static struct mt76_txwi_cache *
mt76_alloc_rxwi(struct mt76_dev *dev)
{ … }

static struct mt76_txwi_cache *
__mt76_get_txwi(struct mt76_dev *dev)
{ … }

static struct mt76_txwi_cache *
__mt76_get_rxwi(struct mt76_dev *dev)
{ … }

static struct mt76_txwi_cache *
mt76_get_txwi(struct mt76_dev *dev)
{ … }

struct mt76_txwi_cache *
mt76_get_rxwi(struct mt76_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

void
mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t)
{ … }
EXPORT_SYMBOL_GPL(…);

void
mt76_put_rxwi(struct mt76_dev *dev, struct mt76_txwi_cache *t)
{ … }
EXPORT_SYMBOL_GPL(…);

static void
mt76_free_pending_txwi(struct mt76_dev *dev)
{ … }

void
mt76_free_pending_rxwi(struct mt76_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

static void
mt76_dma_sync_idx(struct mt76_dev *dev, struct mt76_queue *q)
{ … }

void __mt76_dma_queue_reset(struct mt76_dev *dev, struct mt76_queue *q,
			    bool reset_idx)
{ … }

void mt76_dma_queue_reset(struct mt76_dev *dev, struct mt76_queue *q)
{ … }

static int
mt76_dma_add_rx_buf(struct mt76_dev *dev, struct mt76_queue *q,
		    struct mt76_queue_buf *buf, void *data)
{ … }

static int
mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q,
		 struct mt76_queue_buf *buf, int nbufs, u32 info,
		 struct sk_buff *skb, void *txwi)
{ … }

static void
mt76_dma_tx_cleanup_idx(struct mt76_dev *dev, struct mt76_queue *q, int idx,
			struct mt76_queue_entry *prev_e)
{ … }

static void
mt76_dma_kick_queue(struct mt76_dev *dev, struct mt76_queue *q)
{ … }

static void
mt76_dma_tx_cleanup(struct mt76_dev *dev, struct mt76_queue *q, bool flush)
{ … }

static void *
mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx,
		 int *len, u32 *info, bool *more, bool *drop)
{ … }

static void *
mt76_dma_dequeue(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
		 int *len, u32 *info, bool *more, bool *drop)
{ … }

static int
mt76_dma_tx_queue_skb_raw(struct mt76_dev *dev, struct mt76_queue *q,
			  struct sk_buff *skb, u32 tx_info)
{ … }

static int
mt76_dma_tx_queue_skb(struct mt76_phy *phy, struct mt76_queue *q,
		      enum mt76_txq_id qid, struct sk_buff *skb,
		      struct mt76_wcid *wcid, struct ieee80211_sta *sta)
{ … }

int mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q,
		     bool allow_direct)
{ … }

static int
mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q,
		     int idx, int n_desc, int bufsize,
		     u32 ring_base)
{ … }

static void
mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
{ … }

static void
mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)
{ … }

static void
mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data,
		  int len, bool more, u32 info, bool allow_direct)
{ … }

static int
mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget)
{ … }

int mt76_dma_rx_poll(struct napi_struct *napi, int budget)
{ … }
EXPORT_SYMBOL_GPL(…);

static int
mt76_dma_init(struct mt76_dev *dev,
	      int (*poll)(struct napi_struct *napi, int budget))
{ … }

static const struct mt76_queue_ops mt76_dma_ops = …;

void mt76_dma_attach(struct mt76_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

void mt76_dma_cleanup(struct mt76_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);