diff options
| author | Florian Westphal <fw@strlen.de> | 2014-09-03 17:34:36 +0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-09-12 13:16:46 +0400 |
| commit | 13809609610ae2ab4a7730982c3e067d8edb5a67 (patch) | |
| tree | adef2268213008277f3f1875ef4ee9df96a639a6 /drivers/net/ethernet/intel/e1000/e1000.h | |
| parent | 580f321d8498f1c7f83f2765601c84105a21e423 (diff) | |
| download | linux-13809609610ae2ab4a7730982c3e067d8edb5a67.tar.xz | |
e1000: convert to build_skb
Instead of preallocating Rx skbs, allocate them right before sending
inbound packet up the stack.
e1000-kvm, mtu1500, netperf TCP_STREAM:
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
old: 87380 16384 16384 60.00 4532.40
new: 87380 16384 16384 60.00 4599.05
Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000/e1000.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000/e1000.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h index 4c2a1021aea3..69707108d23c 100644 --- a/drivers/net/ethernet/intel/e1000/e1000.h +++ b/drivers/net/ethernet/intel/e1000/e1000.h @@ -160,9 +160,11 @@ struct e1000_tx_buffer { }; struct e1000_rx_buffer { - struct sk_buff *skb; + union { + struct page *page; /* jumbo: alloc_page */ + u8 *data; /* else, netdev_alloc_frag */ + } rxbuf; dma_addr_t dma; - struct page *page; }; struct e1000_tx_ring { |