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mt76x2_dma: initialize rx buf_offset in mt76x2_dma_init()

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Move rx buf_offset initialization in mt76x2_dma_init() since
mt76x2_dma_cleanup() is called just in mt76pci_remove(). This allows to use
MT_RX_HEADROOM greater than mt76x2_rxwi size.
Move sanity checks on mt76x2_{t,r}xwi size in mt76x2_dma_init() as well

Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2016-01-22 20:44:36 +01:00
committed by Felix Fietkau
parent 7630ee71e3
commit 88395adf18
1 changed files with 7 additions and 6 deletions
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mt76x2_dma.c
+7 -6
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@@ -272,6 +272,10 @@ int mt76x2_dma_init(struct mt76x2_dev *dev)
};
int ret;
int i;
struct mt76_txwi_cache __maybe_unused *t;
BUILD_BUG_ON(sizeof(t->txwi) < sizeof(struct mt76x2_txwi));
BUILD_BUG_ON(sizeof(struct mt76x2_rxwi) > MT_RX_HEADROOM);
mt76_dma_init(&dev->mt76);
@@ -303,6 +307,9 @@ int mt76x2_dma_init(struct mt76x2_dev *dev)
if (ret)
return ret;
dev->q_rx.buf_offset = MT_RX_HEADROOM - sizeof(struct mt76x2_rxwi);
dev->mcu.q_rx.buf_offset = MT_RX_HEADROOM - sizeof(struct mt76x2_rxwi);
ret = mt76x2_init_rx_queue(dev, &dev->mcu.q_rx, 1, MT_MCU_RING_SIZE,
MT_RX_BUF_SIZE);
if (ret)
@@ -321,14 +328,8 @@ int mt76x2_dma_init(struct mt76x2_dev *dev)
void mt76x2_dma_cleanup(struct mt76x2_dev *dev)
{
struct mt76_txwi_cache __maybe_unused *t;
int i;
BUILD_BUG_ON(sizeof(t->txwi) < sizeof(struct mt76x2_txwi));
BUILD_BUG_ON(MT_RX_HEADROOM < sizeof(struct mt76x2_rxwi));
dev->q_rx.buf_offset = MT_RX_HEADROOM - sizeof(struct mt76x2_rxwi);
dev->mcu.q_rx.buf_offset = MT_RX_HEADROOM - sizeof(struct mt76x2_rxwi);
tasklet_kill(&dev->tx_tasklet);
tasklet_kill(&dev->rx_tasklet);
for (i = 0; i < ARRAY_SIZE(dev->mt76.q_tx); i++)