- 21 Jan, 2013 30 commits
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David S. Miller authored
YOSHIFUJI Hideaki says: ==================== This series of changes basically clean up NDISC logic, especially on sender side. We originally do For NS/NA/RS: 1) build temporary ICMPv6 header 2) ndisc_build_skb() with temporary ICMPv6 header and rather criptic arguments. - Calculate total length and allocate sk_buff - Build IPv6 header. - copy ICMPv6 header, additional data and ND options. - Fill-in ICMPv6 checksum. Here, structures defined for message format was not used at all, it is difficult to understand what is being sent, and it was not generic. 3) __ndisc_send() - Allocate temporary dst. - Send it. Several issues: - We could not defer decision if we should/can send some ND option. - It is hard to see the packet format at a glance. - ICMPv6 header was built as temporary variable, and then copied to the buffer. - Some code path for Redirect was not shared. With these patches, we do: 1) Calculate (or estimate) message length and option length. 2) Allocate skb (via new ndisc_skb_alloc()). 3) Fill-in ICMPv6 message directly using compound literals. 4) Fill-in ICMPv6 checksum 5) Build IPv6 header (including length) 6) Send the packet (via ndisc_send_skb()). - allocate temporary dst and send it. - We can defer calculating real length of the packet. For example, we can give up filling some option at when filling in. - Message is built directly without temporary buffer. - Structures defined for message format is easier to understand what is being built. - NS/NA/RS/Redirect share same logic. - Reduced code/data size: text data bss dec hex filename 265407 14133 3488 283028 45194 old/net/ipv6/ipv6.o 264955 14109 3488 282552 44fb8 new/net/ipv6/ipv6.o ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
Construct NS/NA/RS message directly using C99 compound literals. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
Reuse dst if one is attached with skb. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
skb_transport_header() (thus icmp6_hdr()) is available here, use it. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
Build ICMPv6 message first and make buffer management easier; we can use skb->len when filling checksum in ICMPv6 header, and then build IP header with length field. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
Since we have skb->dev, use it. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
- move ip6_nd_hdr() to its users' source files. In net/ipv6/mcast.c, it will be called ip6_mc_hdr(). - make return type to void since this function never fails. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
Suggested by Eric Dumazet <edumazet@google.com>. Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
This also makes ndisc_opt_addr_data() and ndisc_fill_addr_option() use ndisc_opt_addr_space(). Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
Add pointer to struct net_device (dev) and remove data_len (= dev->addr_len) and addr_type (= dev->type). Signed-off-by:
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Thierry Reding authored
The correct name of the transmit DMA channel field in struct emac_priv is txchan, not txch. Signed-off-by:
Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
It is wrong to set skb->ip_summed to CHECKSUM_UNNECESSARY unless the device has already checked it. Signed-off-by:
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Ming Lei authored
This patch calls device_set_wakeup_enable() inside set_wol callback, so that turning on WOL from user mode utility can make the 'wakeup' of pegasus device to be enabled, then remote wakeup may be enabled before putting into sleep. Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Petko Manolov <petkan@users.sourceforge.net> Signed-off-by:
Ming Lei <ming.lei@canonical.com> Signed-off-by:
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Eric Dumazet authored
remove redundant code from build_inline_wqe() Signed-off-by:
Eric Dumazet <edumazet@google.com> Acked-By:
Amir Vadai <amirv@mellanox.com> Signed-off-by:
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki / 吉藤英明 authored
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YOSHIFUJI Hideaki authored
ipv6_addr_is_{multicast,ll_all_nodes,ll_all_routers,isatap}() return boolean. Signed-off-by:
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- 19 Jan, 2013 10 commits
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Wu Fengguang authored
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Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to ixgbe, ixgbevf and igb. ==================== Signed-off-by: -
git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Included changes: - sysfs removal postponement during interface un-registration - random32() function renaming - struct refactoring - kernel doc improvement - deleyed_work initialisation clean up work - copyright year and internal version number update - kernel doc improvement Signed-off-by: -
Antonio Quartulli authored
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Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by:
Antonio Quartulli <ordex@autistici.org>
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Antonio Quartulli authored
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Marek Lindner <lindner_marek@yahoo.de>
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Simon Wunderlich authored
When processing the unregister notify for a hard interface, removing the sysfs files may lead to a circular deadlock (rtnl mutex <-> s_active). To overcome this problem, postpone the sysfs removal in a worker. Reported-by:
Sasha Levin <sasha.levin@oracle.com> Reported-by:
Sven Eckelmann <sven@narfation.org> Signed-off-by:
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Akinobu Mita authored
Use more preferable function name which implies using a pseudo-random number generator. Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Acked-by:
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Marek Lindner authored
Thanks to Sven Eckelmann and Simon Wunderlich for their support. Signed-off-by:
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Marek Lindner authored
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Marek Lindner authored
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