static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
PSTxDesc head_td;
u32 dma_idx = TYPE_AC0DMA;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
if (!ieee80211_is_data(hdr->frame_control))
dma_idx = TYPE_TXDMA0;
if (AVAIL_TD(priv, dma_idx) < 1) {
spin_unlock_irqrestore(&priv->lock, flags);
return -ENOMEM;
}
head_td = priv->apCurrTD[dma_idx];
head_td->m_td1TD1.byTCR = 0;
head_td->pTDInfo->skb = skb;
priv->iTDUsed[dma_idx]++;
/* Take ownership */
wmb();
head_td->m_td0TD0.f1Owner = OWNED_BY_NIC;
/* get Next */
wmb();
priv->apCurrTD[dma_idx] = head_td->next;
spin_unlock_irqrestore(&priv->lock, flags);
vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
if (MACbIsRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_PS))
MACbPSWakeup(priv->PortOffset);
spin_lock_irqsave(&priv->lock, flags);
priv->bPWBitOn = false;
/* Set TSR1 & ReqCount in TxDescHead */
head_td->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP | EDMSDU);
head_td->m_td1TD1.wReqCount =
cpu_to_le16((u16)head_td->pTDInfo->dwReqCount);
head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->skb_dma);
if (dma_idx == TYPE_AC0DMA) {
head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB;
MACvTransmitAC0(priv->PortOffset);
} else {
MACvTransmit0(priv->PortOffset);
}
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct vnt_tx_desc *head_td;
u32 dma_idx;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
if (ieee80211_is_data(hdr->frame_control))
dma_idx = TYPE_AC0DMA;
else
dma_idx = TYPE_TXDMA0;
if (AVAIL_TD(priv, dma_idx) < 1) {
spin_unlock_irqrestore(&priv->lock, flags);
ieee80211_stop_queues(priv->hw);
return -ENOMEM;
}
head_td = priv->apCurrTD[dma_idx];
head_td->td1.tcr = 0;
head_td->td_info->skb = skb;
if (dma_idx == TYPE_AC0DMA)
head_td->td_info->flags = TD_FLAGS_NETIF_SKB;
priv->apCurrTD[dma_idx] = head_td->next;
spin_unlock_irqrestore(&priv->lock, flags);
vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
spin_lock_irqsave(&priv->lock, flags);
priv->bPWBitOn = false;
/* Set TSR1 & ReqCount in TxDescHead */
head_td->td1.tcr |= (TCR_STP | TCR_EDP | EDMSDU);
head_td->td1.req_count = cpu_to_le16(head_td->td_info->req_count);
head_td->buff_addr = cpu_to_le32(head_td->td_info->buf_dma);
/* Poll Transmit the adapter */
wmb();
head_td->td0.owner = OWNED_BY_NIC;
wmb(); /* second memory barrier */
if (head_td->td_info->flags & TD_FLAGS_NETIF_SKB)
MACvTransmitAC0(priv->PortOffset);
else
MACvTransmit0(priv->PortOffset);
priv->iTDUsed[dma_idx]++;
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}