- 23 7月, 2008 1 次提交
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由 Maciej Sosnowski 提交于
I/OAT DMA performance tuning showed different optimal values of tcp_dma_copybreak for different I/OAT versions (4096 for 1.2 and 2048 for 2.0). This patch lets ioatdma driver set tcp_dma_copybreak value according to these results. [dan.j.williams@intel.com: remove some ifdefs] Signed-off-by: NMaciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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- 04 6月, 2008 1 次提交
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由 Brice Goglin 提交于
No need to compute copy twice in the frags loop in dma_skb_copy_datagram_iovec(). Signed-off-by: NBrice Goglin <Brice.Goglin@inria.fr> Acked-by: NShannon Nelson <shannon.nelson@intel.com> Signed-off-by: NMaciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 4月, 2007 1 次提交
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由 David S. Miller 提交于
This reverts eefa3906 The simplification made in that change works with the assumption that the 'offset' parameter to these functions is always positive or zero, which is not true. It can be and often is negative in order to access SKB header values in front of skb->data. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 4月, 2007 1 次提交
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由 Jean Delvare 提交于
I noticed recently that, in skb_checksum(), "offset" and "start" are essentially the same thing and have the same value throughout the function, despite being computed differently. Using a single variable allows some cleanups and makes the skb_checksum() function smaller, more readable, and presumably marginally faster. We appear to have many other "sk_buff walker" functions built on the exact same model, so the cleanup applies to them, too. Here is a list of the functions I found to be affected: net/appletalk/ddp.c:atalk_sum_skb() net/core/datagram.c:skb_copy_datagram_iovec() net/core/datagram.c:skb_copy_and_csum_datagram() net/core/skbuff.c:skb_copy_bits() net/core/skbuff.c:skb_store_bits() net/core/skbuff.c:skb_checksum() net/core/skbuff.c:skb_copy_and_csum_bit() net/core/user_dma.c:dma_skb_copy_datagram_iovec() net/xfrm/xfrm_algo.c:skb_icv_walk() net/xfrm/xfrm_algo.c:skb_to_sgvec() OTOH, I admit I'm a bit surprised, the cleanup is rather obvious so I'm really wondering if I am missing something. Can anyone please comment on this? Signed-off-by: NJean Delvare <jdelvare@suse.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 2月, 2007 1 次提交
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由 YOSHIFUJI Hideaki 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 7月, 2006 1 次提交
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由 Adrian Bunk 提交于
Every file should #include the headers containing the prototypes for its global functions. Especially in cases like this one where gcc can tell us through a compile error that the prototype was wrong... Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 6月, 2006 2 次提交
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由 Chris Leech 提交于
Any socket recv of less than this ammount will not be offloaded Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Chris Leech 提交于
Provides for pinning user space pages in memory, copying to iovecs, and copying from sk_buffs including fragmented and chained sk_buffs. Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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