| Message ID | 1396628751-14564-1-git-send-email-andrea.merello@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index cb8275f..50d69b1 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -910,7 +910,10 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev) reg32 &= 0x00ffff00; reg32 |= 0xb8000054; rtl818x_iowrite32(priv, &priv->map->RF_PARA, reg32); - } + } else + /* stop unused queus (no dma alloc) */ + rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, + (1<<1) | (1<<2)); priv->rf->init(dev);
HW should never attempt to perform DMA for unused queues. For rtl8187se this is ensured by setting a dedicated register at init time, before enabling TX. In rtl8180/5 the register is only written at the first TX (because in rtl8180/5 it serves also to kick DMA for used queues). This should be enough, but it's worth to add a register write at init time, before enabling TX. Signed-off-by: Andrea Merello <andrea.merello@gmail.com> --- drivers/net/wireless/rtl818x/rtl8180/dev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)