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yaml
---
r: 172087
b: refs/heads/master
c: a73b796
h: refs/heads/master
i:
  172085: 161c43b
  172083: 4564dd6
  172079: 7b3f1ad
v: v3
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Alexander Duyck authored and David S. Miller committed Dec 3, 2009
1 parent 8394c1c commit 012ad5b
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Showing 2 changed files with 27 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e95524a726904a1d2b91552f0577838f67d53c6c
refs/heads/master: a73b796ed85483a2b999d74d197f31f887ffa82d
37 changes: 26 additions & 11 deletions trunk/drivers/net/benet/be_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -394,15 +394,11 @@ static int make_tx_wrbs(struct be_adapter *adapter,
atomic_add(wrb_cnt, &txq->used);
queue_head_inc(txq);

if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
dev_err(&pdev->dev, "TX DMA mapping failed\n");
return 0;
}

if (skb->len > skb->data_len) {
int len = skb->len - skb->data_len;
busaddr = pci_map_single(pdev, skb->data, len,
PCI_DMA_TODEVICE);
wrb = queue_head_node(txq);
busaddr = skb_shinfo(skb)->dma_head;
wrb_fill(wrb, busaddr, len);
be_dws_cpu_to_le(wrb, sizeof(*wrb));
queue_head_inc(txq);
Expand All @@ -412,8 +408,9 @@ static int make_tx_wrbs(struct be_adapter *adapter,
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
struct skb_frag_struct *frag =
&skb_shinfo(skb)->frags[i];

busaddr = skb_shinfo(skb)->dma_maps[i];
busaddr = pci_map_page(pdev, frag->page,
frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
wrb = queue_head_node(txq);
wrb_fill(wrb, busaddr, frag->size);
be_dws_cpu_to_le(wrb, sizeof(*wrb));
Expand Down Expand Up @@ -986,23 +983,41 @@ static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
{
struct be_queue_info *txq = &adapter->tx_obj.q;
struct be_eth_wrb *wrb;
struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
struct sk_buff *sent_skb;
u64 busaddr;
u16 cur_index, num_wrbs = 0;

cur_index = txq->tail;
sent_skb = sent_skbs[cur_index];
BUG_ON(!sent_skb);
sent_skbs[cur_index] = NULL;
wrb = queue_tail_node(txq);
be_dws_le_to_cpu(wrb, sizeof(*wrb));
busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
if (busaddr != 0) {
pci_unmap_single(adapter->pdev, busaddr,
wrb->frag_len, PCI_DMA_TODEVICE);
}
num_wrbs++;
queue_tail_inc(txq);

do {
while (cur_index != last_index) {
cur_index = txq->tail;
wrb = queue_tail_node(txq);
be_dws_le_to_cpu(wrb, sizeof(*wrb));
busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
if (busaddr != 0) {
pci_unmap_page(adapter->pdev, busaddr,
wrb->frag_len, PCI_DMA_TODEVICE);
}
num_wrbs++;
queue_tail_inc(txq);
} while (cur_index != last_index);
}

atomic_sub(num_wrbs, &txq->used);
skb_dma_unmap(&adapter->pdev->dev, sent_skb, DMA_TO_DEVICE);

kfree_skb(sent_skb);
}

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