diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2009-02-06 23:15:25 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-02-07 02:43:02 -0800 |
| commit | db76176215ec5af7a67386e0eacb5ea53e040f10 (patch) | |
| tree | eb68c1e9151058e130a919e10779561d4a8edfa9 /drivers/net/igb/igb_main.c | |
| parent | igb: optimize/refactor receive path (diff) | |
| download | linux-dev-db76176215ec5af7a67386e0eacb5ea53e040f10.tar.xz linux-dev-db76176215ec5af7a67386e0eacb5ea53e040f10.zip | |
igb: move setting of buffsz out of repeated path in alloc_rx_buffers
buffsz is being repeatedly set when allocaing buffers. Since this value
should only need to be set once in the function I am moving it out of the
looped portion of the path.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 21f0c229b64e..ec5855a10ffb 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -3943,10 +3943,17 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring, struct igb_buffer *buffer_info; struct sk_buff *skb; unsigned int i; + int bufsz; i = rx_ring->next_to_use; buffer_info = &rx_ring->buffer_info[i]; + if (adapter->rx_ps_hdr_size) + bufsz = adapter->rx_ps_hdr_size; + else + bufsz = adapter->rx_buffer_len; + bufsz += NET_IP_ALIGN; + while (cleaned_count--) { rx_desc = E1000_RX_DESC_ADV(*rx_ring, i); @@ -3962,23 +3969,14 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring, buffer_info->page_offset ^= PAGE_SIZE / 2; } buffer_info->page_dma = - pci_map_page(pdev, - buffer_info->page, + pci_map_page(pdev, buffer_info->page, buffer_info->page_offset, PAGE_SIZE / 2, PCI_DMA_FROMDEVICE); } if (!buffer_info->skb) { - int bufsz; - - if (adapter->rx_ps_hdr_size) - bufsz = adapter->rx_ps_hdr_size; - else - bufsz = adapter->rx_buffer_len; - bufsz += NET_IP_ALIGN; skb = netdev_alloc_skb(netdev, bufsz); - if (!skb) { adapter->alloc_rx_buff_failed++; goto no_buffers; @@ -3994,7 +3992,6 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring, buffer_info->dma = pci_map_single(pdev, skb->data, bufsz, PCI_DMA_FROMDEVICE); - } /* Refresh the desc even if buffer_addrs didn't change because * each write-back erases this info. */ |