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2011-06-09rtnetlink: Compute and store minimum ifinfo dump sizeGreg Rose
The message size allocated for rtnl ifinfo dumps was limited to a single page. This is not enough for additional interface info available with devices that support SR-IOV and caused a bug in which VF info would not be displayed if more than approximately 40 VFs were created per interface. Implement a new function pointer for the rtnl_register service that will calculate the amount of data required for the ifinfo dump and allocate enough data to satisfy the request. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-09Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller
2011-06-09batman-adv: use NO_FLAGS define instead of hard-coding 0Marek Lindner
The definition NO_FLAGS was introduced to make the code more readable and shall be used to initialize flag fields. Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-09batman-adv: Use enums for related constantsSven Eckelmann
CodingStyle "Chapter 12: Macros, Enums and RTL" recommends to use enums for several related constants. Internal states can be used without defining the actual value, but all values which are visible to the outside must be defined as before. Normal values are assigned as usual and flags are defined by shifts of a bit. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-09batman-adv: Rewrite debugfs kobj_to_* helpers as functionsSven Eckelmann
CodingStyle "Chapter 12: Macros, Enums and RTL" highly recommends to use functions instead of macros were possible. This ensures type safety and prevents shadowing of other variables. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-09batman-adv: Fix signedness problem in parse_gw_bandwidthSven Eckelmann
strict_strtoul as used in parse_gw_bandwidth is defined for unsigned long and strict_strtol should be used instead for long. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-09batman-adv: Don't return value in void functionSven Eckelmann
gw_node_delete is defined with "void" as return type, but still tries to return a value. The called function gw_node_delete is also return as void and thus doesn't provide a value for us. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-09batman-adv: accept delayed rebroadcasts to avoid bogus routing under heavy loadDaniele Furlan
When a link is saturated (re)broadcasts of OGMs are delayed. Under heavy load this delay may exceed the orig interval which leads to OGMs being dropped (the code would only accept an OGM rebroadcast if it arrived before the next OGM was broadcasted). With this patch batman-adv will also accept delayed OGMs in order to avoid a bogus influence on the routing metric. Signed-off-by: Daniele Furlan <daniele.furlan@gmail.com> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-06-08inetpeer: remove unused listEric Dumazet
Andi Kleen and Tim Chen reported huge contention on inetpeer unused_peers.lock, on memcached workload on a 40 core machine, with disabled route cache. It appears we constantly flip peers refcnt between 0 and 1 values, and we must insert/remove peers from unused_peers.list, holding a contended spinlock. Remove this list completely and perform a garbage collection on-the-fly, at lookup time, using the expired nodes we met during the tree traversal. This removes a lot of code, makes locking more standard, and obsoletes two sysctls (inet_peer_gc_mintime and inet_peer_gc_maxtime). This also removes two pointers in inet_peer structure. There is still a false sharing effect because refcnt is in first cache line of object [were the links and keys used by lookups are located], we might move it at the end of inet_peer structure to let this first cache line mostly read by cpus. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Andi Kleen <andi@firstfloor.org> CC: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08tcp: RFC2988bis + taking RTT sample from 3WHS for the passive open sideJerry Chu
This patch lowers the default initRTO from 3secs to 1sec per RFC2988bis. It falls back to 3secs if the SYN or SYN-ACK packet has been retransmitted, AND the TCP timestamp option is not on. It also adds support to take RTT sample during 3WHS on the passive open side, just like its active open counterpart, and uses it, if valid, to seed the initRTO for the data transmission phase. The patch also resets ssthresh to its initial default at the beginning of the data transmission phase, and reduces cwnd to 1 if there has been MORE THAN ONE retransmission during 3WHS per RFC5681. Signed-off-by: H.K. Jerry Chu <hkchu@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08ipv6: generate link local address for GRE tunnelstephen hemminger
Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08v2 ethtool: remove support for ETHTOOL_GRXNTUPLEAlexander Duyck
This change is meant to remove all support for displaying an ntuple as strings via ETHTOOL_GRXNTUPLE. The reason for this change is due to the fact that multiple issues have been found including: - Multiple buffer overruns for strings being displayed. - Incorrect filters displayed, cleared filters with ring of -2 are displayed - Setting get_rx_ntuple displays no rules if defined. - Endianess wrong on displayed values. - Hard limit of 1024 filters makes display functionality extremely limited The only driver that had supported this interface was ixgbe. Since it no longer uses the interface and due to the issues mentioned above I am submitting this patch to remove it. v2: Updated based on comments from Ben Hutchings - Left ETH_SS_NTUPLE_FILTERS in code but commented on it being deprecated - Removed ethtool_rx_ntuple_list and ethtool_rx_ntuple_flow_spec_container - Left ETHTOOL_GRXNTUPLE but commented it as deprecated Also cleaned up set_rx_ntuple since there is no flow spec container to maintain we can drop all the code for the alloc and free of it and just return ops->set_rx_ntuple(). Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-06-07mac80211: Stop BA session event from deviceShahar Levi
Some devices support BT/WLAN co-existence algorigthms. In order not to harm the system performance and user experience, the device requests not to allow any RX BA session and tear down existing RX BA sessions based on system constraints such as periodic BT activity that needs to limit WLAN activity (eg.SCO or A2DP). In such cases, the intention is to limit the duration of the RX PPDU and therefore prevent the peer device to use A-MPDU aggregation. Adding ieee80211_stop_rx_ba_session() callback that can be used by the driver to stop existing BA sessions. Signed-off-by: Shahar Levi <shahar_levi@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-07Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2011-06-06net: remove interrupt.h inclusion from netdevice.hAlexey Dobriyan
* remove interrupt.g inclusion from netdevice.h -- not needed * fixup fallout, add interrupt.h and hardirq.h back where needed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-06sctp: Guard IPV6 specific code properly.David S. Miller
Outside of net/sctp/ipv6.c, IPV6 specific code needs to be ifdef guarded. This fixes build failures with IPV6 disabled. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-06Revert "mac80211: Skip tailroom reservation for full HW-crypto devices"John W. Linville
This reverts commit aac6af5534fade2b18682a0b9efad1a6c04c34c6. Conflicts: net/mac80211/key.c That commit has a race that causes a warning, as documented in the thread here: http://marc.info/?l=linux-wireless&m=130717684914101&w=2 Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-05net: Remove unnecessary semicolonsJoe Perches
Semicolons are not necessary after switch/while/for/if braces so remove them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05af-packet: Use existing netdev reference for bound sockets.Ben Greear
This saves a network device lookup on each packet transmitted, for sockets that are bound to a network device. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05af-packet: Hold reference to bound network devices.Ben Greear
Old code was probably safe, but with this change we can actually use the netdev object, not just compare the pointer values. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-04Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-06-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits) tg3: Fix tg3_skb_error_unmap() net: tracepoint of net_dev_xmit sees freed skb and causes panic drivers/net/can/flexcan.c: add missing clk_put net: dm9000: Get the chip in a known good state before enabling interrupts drivers/net/davinci_emac.c: add missing clk_put af-packet: Add flag to distinguish VID 0 from no-vlan. caif: Fix race when conditionally taking rtnl lock usbnet/cdc_ncm: add missing .reset_resume hook vlan: fix typo in vlan_dev_hard_start_xmit() net/ipv4: Check for mistakenly passed in non-IPv4 address iwl4965: correctly validate temperature value bluetooth l2cap: fix locking in l2cap_global_chan_by_psm ath9k: fix two more bugs in tx power cfg80211: don't drop p2p probe responses Revert "net: fix section mismatches" drivers/net/usb/catc.c: Fix potential deadlock in catc_ctrl_run() sctp: stop pending timers and purge queues when peer restart asoc drivers/net: ks8842 Fix crash on received packet when in PIO mode. ip_options_compile: properly handle unaligned pointer iwlagn: fix incorrect PCI subsystem id for 6150 devices ...
2011-06-03Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem
2011-06-03mac80211: call dev_alloc_name before copying name to sdataThadeu Lima de Souza Cascardo
This partially reverts 1c5cae815d19ffe02bdfda1260949ef2b1806171, because the netdev name is copied into sdata->name, which is used for debugging messages, for example. Otherwise, we get messages like this: wlan%d: authenticated Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Jiri Pirko <jpirko@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-02net: tracepoint of net_dev_xmit sees freed skb and causes panicKoki Sanagi
Because there is a possibility that skb is kfree_skb()ed and zero cleared after ndo_start_xmit, we should not see the contents of skb like skb->len and skb->dev->name after ndo_start_xmit. But trace_net_dev_xmit does that and causes panic by NULL pointer dereference. This patch fixes trace_net_dev_xmit not to see the contents of skb directly. If you want to reproduce this panic, 1. Get tracepoint of net_dev_xmit on 2. Create 2 guests on KVM 2. Make 2 guests use virtio_net 4. Execute netperf from one to another for a long time as a network burden 5. host will panic(It takes about 30 minutes) Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02net: 8021q: Add pr_fmtJoe Perches
Use the current logging style. Add #define pr_fmt and remove embedded prefix from formats. Not converting the current pr_<level> uses to netdev_<level> because all the output here is nicely prefaced with "8021q: ". Remove __func__ use from proc registration failure message. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sctp: Add ASCONF operation on the single-homed hostMichio Honda
In this case, the SCTP association transmits an ASCONF packet including addition of the new IP address and deletion of the old address. This patch implements this functionality. In this case, the ASCONF chunk is added to the beginning of the queue, because the other chunks cannot be transmitted in this state. Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sctp: Add socket option operation for Auto-ASCONF.Michio Honda
This patch allows the application to operate Auto-ASCONF on/off behavior via setsockopt() and getsockopt(). Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sctp: Add sysctl support for Auto-ASCONF.Michio Honda
This patch allows the system administrator to change default Auto-ASCONF on/off behavior via an sysctl value. Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sctp: Add Auto-ASCONF support (core).Michio Honda
SCTP reconfigure the IP addresses in the association by using ASCONF chunks as mentioned in RFC5061. For example, we can start to use the newly configured IP address in the existing association. This patch implements automatic ASCONF operation in the SCTP stack with address events in the host computer, which is called auto_asconf. Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-02sctp: Add ADD/DEL ASCONF handling at the receiver.Michio Honda
This patch fixes the problem that the original code cannot delete the remote address where the corresponding transport is currently directed, even when the ASCONF is sent from the other address (this situation happens when the single-homed sender transmits ASCONF with ADD and DEL.) Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01af-packet: Add flag to distinguish VID 0 from no-vlan.Ben Greear
Currently, user-space cannot determine if a 0 tcp_vlan_tci means there is no VLAN tag or the VLAN ID was zero. Add flag to make this explicit. User-space can check for TP_STATUS_VLAN_VALID || tp_vlan_tci > 0, which will be backwards compatible. Older could would have just checked for tp_vlan_tci, so it will work no worse than before. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01caif: Fix race when conditionally taking rtnl locksjur.brandeland@stericsson.com
Take the RTNL lock unconditionally when calling dev_close. Taking the lock conditionally may cause race conditions. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01vlan: fix typo in vlan_dev_hard_start_xmit()Wei Yongjun
commit 4af429d29b341bb1735f04c2fb960178ed5d52e7 (vlan: lockless transmit path) have a typo in vlan_dev_hard_start_xmit(), using u64_stats_update_begin() to end the stat update, it should be u64_stats_update_end(). Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01net/ipv4: Check for mistakenly passed in non-IPv4 addressMarcus Meissner
Check against mistakenly passing in IPv6 addresses (which would result in an INADDR_ANY bind) or similar incompatible sockaddrs. Signed-off-by: Marcus Meissner <meissner@suse.de> Cc: Reinhard Max <max@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01cfg80211: skip disabled channels on channel surveyLuis R. Rodriguez
The channel survey information will be empy for disabled channels so simply discard those entries. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01minstrel_ht: fixed rate mode through debugfsZefir Kurtisi
Found several threads about fixed rate mode in minstrel_ht for test environments, but no patches for it. This patch provides such a mode through debugfs. Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01nl80211: add testmode dump supportWey-Yi Guy
This adds dump support to testmode. The testmode dump support in nl80211 requires using two of the six cb->args, the rest can be used by the driver to figure out where the dump position is at or to store other data across invocations. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01bluetooth l2cap: fix locking in l2cap_global_chan_by_psmJohannes Berg
read_lock() ... read_unlock_bh() is clearly bogus. This was broken by commit 23691d75cdc69c3b285211b4d77746aa20a17d18 Author: Gustavo F. Padovan <padovan@profusion.mobi> Date: Wed Apr 27 18:26:32 2011 -0300 Bluetooth: Remove l2cap_sk_list Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01cfg80211: don't drop p2p probe responsesEliad Peller
Commit 0a35d36 ("cfg80211: Use capability info to detect mesh beacons") assumed that probe response with both ESS and IBSS bits cleared means that the frame was sent by a mesh sta. However, these capabilities are also being used in the p2p_find phase, and the mesh-validation broke it. Rename the WLAN_CAPABILITY_IS_MBSS macro, and verify that mesh ies exist before assuming this frame was sent by a mesh sta. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-31Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller
2011-05-31Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-05-31sctp: stop pending timers and purge queues when peer restart asocWei Yongjun
If the peer restart the asoc, we should not only fail any unsent/unacked data, but also stop the T3-rtx, SACK, T4-rto timers, and teardown ASCONF queues. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-31ip_options_compile: properly handle unaligned pointerChris Metcalf
The current code takes an unaligned pointer and does htonl() on it to make it big-endian, then does a memcpy(). The problem is that the compiler decides that since the pointer is to a __be32, it is legal to optimize the copy into a processor word store. However, on an architecture that does not handled unaligned writes in kernel space, this produces an unaligned exception fault. The solution is to track the pointer as a "char *" (which removes a bunch of unpleasant casts in any case), and then just use put_unaligned_be32() to write the value to memory. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: David S. Miller <davem@zippy.davemloft.net>
2011-05-30batman-adv: Ensure that we really have route changes in update_routeSven Eckelmann
The debug output of update_route has tests for "route deleted" and "route added". All other situations are handled as "route changed". This is not true because neigh_node and curr_router could be both NULL. The function is not called in this situation, but the code might be interpreted wrong when reading it without this test. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-30batman-adv: a multiline comment should precede the variable it is describingAntonio Quartulli
This comment has been wrongly put after the variable it refers to and was also bad indented Signed-off-by: Antonio Quartulli <ordex@autistici.org> Acked-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-30batman-adv: use is_broadcast_ether_addr() instead of compare_eth(.., brd_addr)Antonio Quartulli
Instead of comparing mac addresses with the broadcast address by means of compare_eth(), the is_broadcast_ether_addr() kernel function has to be used. Signed-off-by: Antonio Quartulli <ordex@autistici.org> Acked-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-30batman-adv: Check type of x and y in seq_(before|after)Sven Eckelmann
seq_before and seq_after depend on the fact that both sequence numbers have the same type and thus the same bitwidth. We can ensure that by compile time checking using a compare between the pointer to the temporary buffers which were created using the typeof of both parameters. For example gcc would create a warning like "warning: comparison of distinct pointer types lacks a cast". Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-30batman-adv: move smallest_signed_int(), seq_before() and seq_after() into main.hAntonio Quartulli
smallest_signed_int(), seq_before() and seq_after() are very useful functions that help to handle comparisons between sequence numbers. However they were only defined in vis.c. With this patch every batman-adv function will be able to use them. Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
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