diff options
| author | Rasesh Mody <rmody@brocade.com> | 2013-12-17 17:07:40 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-18 00:30:34 -0500 |
| commit | 24f5d33d42d648bce9ae7d3c115816c20ae48217 (patch) | |
| tree | 4ef97fd9e4e9679f67fac3f414792f325b3a6bbf /drivers | |
| parent | f29eeb79ac993a7f1d9e1be5f8c7c3684be0721d (diff) | |
| download | linux-24f5d33d42d648bce9ae7d3c115816c20ae48217.tar.bz2 | |
bna: Embed SKB Length in TX Vector
- Store the length of the skb buffer mapped along with the handle and use it
while unmapping the buffer.
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.h | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index 8d6c7525a8d0..d31524f9d062 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -142,7 +142,8 @@ bnad_tx_buff_unmap(struct bnad *bnad, dma_unmap_page(&bnad->pcidev->dev, dma_unmap_addr(&unmap->vectors[vector], dma_addr), - skb_shinfo(skb)->frags[nvecs].size, DMA_TO_DEVICE); + dma_unmap_len(&unmap->vectors[vector], dma_len), + DMA_TO_DEVICE); dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0); nvecs--; } @@ -3045,7 +3046,7 @@ bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) for (i = 0, vect_id = 0; i < vectors - 1; i++) { const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; - u16 size = skb_frag_size(frag); + u32 size = skb_frag_size(frag); if (unlikely(size == 0)) { /* Undo the changes starting at tcb->producer_index */ @@ -3070,6 +3071,7 @@ bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, 0, size, DMA_TO_DEVICE); + unmap->vectors[vect_id].dma_len = size; BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); txqent->vector[vect_id].length = htons(size); dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr, diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h index 5816a6e7a238..586f6ddfc14b 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.h +++ b/drivers/net/ethernet/brocade/bna/bnad.h @@ -222,6 +222,7 @@ struct bnad_rx_info { struct bnad_tx_vector { DEFINE_DMA_UNMAP_ADDR(dma_addr); + DEFINE_DMA_UNMAP_LEN(dma_len); }; struct bnad_tx_unmap { |