- 26 Aug, 2011 10 commits
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Ian Campbell authored
Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Reviewed-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: linux-atm-general@lists.sourceforge.net Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
<linux/can/bcm.h> uses type canid_t, defined in <linux/can.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Acked-by:
Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Various headers use union nf_inet_addr, defined in <linux/netfilter.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Acked-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Various headers use INT_MIN and INT_MAX, which are defined for userland in <limits.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Acked-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
<linux/tipc_config.h> defines inline functions using ntohs() etc. For userland these are defined in <arpa/inet.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
These types are guaranteed to be defined by <linux/types.h> for both userland and kernel, unlike u_intN_t. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Acked-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
Complete the work started with commit 6602a4ba ('net: Make userland include of netlink.h more sane'). Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
<linux/types.h> defines __kernel_pid_t for userland; pid_t is defined elsewhere (and potentially differently). Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
These headers use the ax25_address type defined in <linux/ax25.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Acked-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
<linux/if_ppox.h> uses ETH_ALEN, defined in <linux/if_ether.h>. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 25 Aug, 2011 11 commits
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Tim Chen authored
Patch series 109f6e39..7361c36c back in 2.6.36 added functionality to allow credentials to work across pid namespaces for packets sent via UNIX sockets. However, the atomic reference counts on pid and credentials caused plenty of cache bouncing when there are numerous threads of the same pid sharing a UNIX socket. This patch mitigates the problem by eliminating extraneous reference counts on pid and credentials on both send and receive path of UNIX sockets. I found a 2x improvement in hackbench's threaded case. On the receive path in unix_dgram_recvmsg, currently there is an increment of reference count on pid and credentials in scm_set_cred. Then there are two decrement of the reference counts. Once in scm_recv and once when skb_free_datagram call skb->destructor function unix_destruct_scm. One pair of increment and decrement of ref count on pid and credentials can be eliminated from the receive path. Until we destroy the skb, we already set a reference when we created the skb on the send side. On the send path, there are two increments of ref count on pid and credentials, once in scm_send and once in unix_scm_to_skb. Then there is a decrement of the reference counts in scm_destroy's call to scm_destroy_cred at the end of unix_dgram_sendmsg functions. One pair of increment and decrement of the reference counts can be removed so we only need to increment the ref counts once. By incorporating these changes, for hackbench running on a 4 socket NHM-EX machine with 40 cores, the execution of hackbench on 50 groups of 20 threads sped up by factor of 2. Hackbench command used for testing: ./hackbench 50 thread 2000 Signed-off-by:
Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michio Honda authored
With this patch a HEARTBEAT chunk is bundled into the ASCONF-ACK for ADD IP ADDRESS, confirming the new destination as quickly as possible. Signed-off-by:
Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michio Honda authored
This patch fixes BUG that the ASCONF receiver transmits DATA chunks to the newly added UNCONFIRMED destination. Signed-off-by:
Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Nandita Dukkipati authored
This patch implements Proportional Rate Reduction (PRR) for TCP. PRR is an algorithm that determines TCP's sending rate in fast recovery. PRR avoids excessive window reductions and aims for the actual congestion window size at the end of recovery to be as close as possible to the window determined by the congestion control algorithm. PRR also improves accuracy of the amount of data sent during loss recovery. The patch implements the recommended flavor of PRR called PRR-SSRB (Proportional rate reduction with slow start reduction bound) and replaces the existing rate halving algorithm. PRR improves upon the existing Linux fast recovery under a number of conditions including: 1) burst losses where the losses implicitly reduce the amount of outstanding data (pipe) below the ssthresh value selected by the congestion control algorithm and, 2) losses near the end of short flows where application runs out of data to send. As an example, with the existing rate halving implementation a single loss event can cause a connection carrying short Web transactions to go into the slow start mode after the recovery. This is because during recovery Linux pulls the congestion window down to packets_in_flight+1 on every ACK. A short Web response often runs out of new data to send and its pipe reduces to zero by the end of recovery when all its packets are drained from the network. Subsequent HTTP responses using the same connection will have to slow start to raise cwnd to ssthresh. PRR on the other hand aims for the cwnd to be as close as possible to ssthresh by the end of recovery. A description of PRR and a discussion of its performance can be found at the following links: - IETF Draft: http://tools.ietf.org/html/draft-mathis-tcpm-proportional-rate-reduction-01 - IETF Slides: http://www.ietf.org/proceedings/80/slides/tcpm-6.pdf http://tools.ietf.org/agenda/81/slides/tcpm-2.pdf - Paper to appear in Internet Measurements Conference (IMC) 2011: Improving TCP Loss Recovery Nandita Dukkipati, Matt Mathis, Yuchung Cheng Signed-off-by:
Nandita Dukkipati <nanditad@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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chetan loke authored
1) Blocks can be configured with non-static frame-size. 2) Read/poll is at a block-level(as opposed to packet-level). 3) Added poll timeout to avoid indefinite user-space wait on idle links. 4) Added user-configurable knobs: 4.1) block::timeout. 4.2) tpkt_hdr::sk_rxhash. Changes: C1) tpacket_rcv() C1.1) packet_current_frame() is replaced by packet_current_rx_frame() The bulk of the processing is then moved in the following chain: packet_current_rx_frame() __packet_lookup_frame_in_block fill_curr_block() or retire_current_block dispatch_next_block or return NULL(queue is plugged/paused) Signed-off-by:
Chetan Loke <loke.chetan@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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chetan loke authored
Added TPACKET_V3 definitions. Signed-off-by:
Chetan Loke <loke.chetan@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alexander Smirnov authored
This patch provides base support for transmission of IPv6 packets as well as the formation of IPv6 link-local addresses and statelessly autoconfigured addresses on top of IEEE 802.15.4 networks. For more information please look at the RFC4944 "Compression Format for IPv6 Datagrams in Low Power and Losst Networks (6LoWPAN). Signed-off-by:
Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ian Campbell authored
Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ian Campbell authored
Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "Pekka Savola (ipv6)" <pekkas@netcore.fi> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ian Campbell authored
Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "Pekka Savola (ipv6)" <pekkas@netcore.fi> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ian Campbell authored
Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl> Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 24 Aug, 2011 7 commits
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Sathya Perla authored
Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
Flashing some of the PHYs can take longer thus increasing the total flash update time to a max of 40s. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
The rx_drops_no_frags HW counter for RSS rings is 16bits in HW and can wraparound often. Maintain a 32-bit accumulator in the driver to prevent frequent wraparound. Also, incorporated Eric's feedback to use ACCESS_ONCE() for the accumulator write. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
Get rid of adapter->pcicfg and its use. Use pci_config_read/write_dword() instead. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
There is a possibility of be_post_rx_frags() being called simultaneously from both be_worker() (when rx_post_starved) and be_poll_rx() (when rxq->used is 0). This can be avoided by posting rx buffers only when some completions have been reaped. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Skip IPIP header to get proper layer-4 information. Like GRE tunnels, this only works if rxhash is not already provided by the device itself (ethtool -K ethX rxhash off), to allow kernel compute a software rxhash. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 22 Aug, 2011 12 commits
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Ian Campbell authored
The primary aim is to add skb_frag_(ref|unref) in order to remove the use of bare get/put_page on SKB pages fragments and to isolate users from subsequent changes to the skb_frag_t data structure. Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl> Cc: netdev@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jiri Pirko authored
Now, when vlan tag on untagged in non-accelerated path is stripped from skb, headers are reset right away. Benefit from that and avoid calling __netif_receive_skb recursivelly and just use another_round. Signed-off-by:
Jiri Pirko <jpirko@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jesper Juhl authored
We'll either hit one of the case labels or the default in the switch and in all cases do we then 'goto out' and we also have a 'goto out' after the switch that is redundant. Change to just use break in the case statements and leave the 'goto out' after the lop for everyone to hit. Signed-off-by:
Jesper Juhl <jj@chaosbits.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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John W. Linville authored
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsparser.c drivers/staging/ath6kl/os/linux/ar6000_drv.c
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Marek Lindner authored
Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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Marek Lindner authored
Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de> Acked-by:
Antonio Quartulli <ordex@autistici.org>
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Antonio Quartulli authored
Since clients can have several flags on or off, this patches make them appear in the local/global transtable output so that they can be checked for debugging purposes. Signed-off-by:
Antonio Quartulli <ordex@autistici.org> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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Antonio Quartulli authored
If a node has to send a packet issued by a WIFI client to another WIFI client, the packet is dropped. Signed-off-by:
Antonio Quartulli <ordex@autistici.org> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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Antonio Quartulli authored
When a node receives a unicast packet it checks if the source and the destination client can communicate or not due to the AP isolation Signed-off-by:
Antonio Quartulli <ordex@autistici.org> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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Antonio Quartulli authored
Clients connected through a 802.11 device are now marked with the TT_CLIENT_WIFI flag. This flag is also advertised with the tt announcement. Signed-off-by:
Antonio Quartulli <ordex@autistici.org> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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Antonio Quartulli authored
Several typos have been corrected and some sentences have been rephrased Signed-off-by:
Antonio Quartulli <ordex@autistici.org> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de>
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