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wifi: mt76: add WED RX support to mt76_dma_rx_fill

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Introduce the capability to refill WED RX buffers in mt76_dma_rx_fill
utility routine.

Tested-by: Daniel Golle <daniel@makrotopia.org>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2022-11-12 16:40:36 +01:00 committed by Felix Fietkau
parent cd372b8c99
commit c601baaf5c
1 changed files with 27 additions and 6 deletions
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33
drivers/net/wireless/mediatek/mt76/dma.c
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@ -550,14 +550,26 @@ free_skb:
return ret;
}
static struct page_frag_cache *
mt76_dma_rx_get_frag_cache(struct mt76_dev *dev, struct mt76_queue *q)
{
struct page_frag_cache *rx_page = &q->rx_page;
#ifdef CONFIG_NET_MEDIATEK_SOC_WED
if ((q->flags & MT_QFLAG_WED) &&
FIELD_GET(MT_QFLAG_WED_TYPE, q->flags) == MT76_WED_Q_RX)
rx_page = &dev->mmio.wed.rx_buf_ring.rx_page;
#endif
return rx_page;
}
static int
mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
{
dma_addr_t addr;
void *buf;
int frames = 0;
struct page_frag_cache *rx_page = mt76_dma_rx_get_frag_cache(dev, q);
int len = SKB_WITH_OVERHEAD(q->buf_size);
int offset = q->buf_offset;
int frames = 0, offset = q->buf_offset;
dma_addr_t addr;
if (!q->ndesc)
return 0;
@ -565,9 +577,18 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
spin_lock_bh(&q->lock);
while (q->queued < q->ndesc - 1) {
struct mt76_txwi_cache *t = NULL;
struct mt76_queue_buf qbuf;
void *buf = NULL;
buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC);
if ((q->flags & MT_QFLAG_WED) &&
FIELD_GET(MT_QFLAG_WED_TYPE, q->flags) == MT76_WED_Q_RX) {
t = mt76_get_rxwi(dev);
if (!t)
break;
}
buf = page_frag_alloc(rx_page, q->buf_size, GFP_ATOMIC);
if (!buf)
break;
@ -580,7 +601,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
qbuf.addr = addr + offset;
qbuf.len = len - offset;
qbuf.skip_unmap = false;
mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL);
mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, t);
frames++;
}