- 28 1月, 2009 1 次提交
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由 Eric Dumazet 提交于
In commit 9db66bdc (net: convert TCP/DCCP ehash rwlocks to spinlocks), I forgot to change one occurrence of rwlock_t to spinlock_t I believe sizeof(raw_spinlock_t) might be > 0 on !CONFIG_SMP if CONFIG_DEBUG_SPINLOCK while sizeof(raw_rwlock_t) should be 0 in this case. Fortunatly, CONFIG_DEBUG_SPINLOCK adds fields to both spinlock_t and rwlock_t, but at this might change in the future (being able to debug spinlocks but not rwlocks for example), better to be safe. Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 1月, 2009 3 次提交
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Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 1月, 2009 7 次提交
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由 Vlad Yasevich 提交于
crc32c algorithm provides a byteswaped result. On little-endian arches, the result ends up in big-endian/network byte order. On big-endinan arches, the result ends up in little-endian order and needs to be byte swapped again. Thus calling cpu_to_le32 gives the right output. Tested-by: NJukka Taimisto <jukka.taimisto@mail.suomi.net> Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv4 multicast routing netns-aware. Declare variable 'reg_vif_num' per-namespace, move into struct netns_ipv4. At the moment, this variable is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv4 multicast routing netns-aware. Declare IPv multicast routing variables 'mroute_do_assert' and 'mroute_do_pim' per-namespace in struct netns_ipv4. At the moment, these variables are only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv4 multicast routing netns-aware. Declare variable cache_resolve_queue_len per-namespace: move it into struct netns_ipv4. This variable counts the number of unresolved cache entries queued in the list mfc_unres_queue. This list is kept global to all netns as the number of entries per namespace is limited to 10 (hardcoded in routine ipmr_cache_unresolved). Entries belonging to different namespaces in mfc_unres_queue will be identified by matching the mfc_net member introduced previously in struct mfc_cache. Keeping this list global to all netns, also allows us to keep a single timer (ipmr_expire_timer) to handle their expiration. In some places cache_resolve_queue_len value was tested for arming or deleting the timer. These tests were equivalent to testing mfc_unres_queue value instead and are replaced in this patch. At the moment, cache_resolve_queue_len is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv4 multicast routing netns-aware. Dynamically allocate IPv4 multicast forwarding cache, mfc_cache_array, and move it to struct netns_ipv4. At the moment, mfc_cache_array is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv6 multicast routing netns-aware. Dynamically allocate interface table vif_table and move it to struct netns_ipv4, and update MIF_EXISTS() macro. At the moment, vif_table is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Benjamin Thery 提交于
Preliminary work to make IPv4 multicast routing netns-aware. Make IPv4 multicast routing mroute_socket per-namespace, moves it into struct netns_ipv4. At the moment, mroute_socket is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 1月, 2009 3 次提交
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由 Evgeniy Polyakov 提交于
With simple extension to the binding mechanism, which allows to bind more than 64k sockets (or smaller amount, depending on sysctl parameters), we have to traverse the whole bind hash table to find out empty bucket. And while it is not a problem for example for 32k connections, bind() completion time grows exponentially (since after each successful binding we have to traverse one bucket more to find empty one) even if we start each time from random offset inside the hash table. So, when hash table is full, and we want to add another socket, we have to traverse the whole table no matter what, so effectivelly this will be the worst case performance and it will be constant. Attached picture shows bind() time depending on number of already bound sockets. Green area corresponds to the usual binding to zero port process, which turns on kernel port selection as described above. Red area is the bind process, when number of reuse-bound sockets is not limited by 64k (or sysctl parameters). The same exponential growth (hidden by the green area) before number of ports reaches sysctl limit. At this time bind hash table has exactly one reuse-enbaled socket in a bucket, but it is possible that they have different addresses. Actually kernel selects the first port to try randomly, so at the beginning bind will take roughly constant time, but with time number of port to check after random start will increase. And that will have exponential growth, but because of above random selection, not every next port selection will necessary take longer time than previous. So we have to consider the area below in the graph (if you could zoom it, you could find, that there are many different times placed there), so area can hide another. Blue area corresponds to the port selection optimization. This is rather simple design approach: hashtable now maintains (unprecise and racely updated) number of currently bound sockets, and when number of such sockets becomes greater than predefined value (I use maximum port range defined by sysctls), we stop traversing the whole bind hash table and just stop at first matching bucket after random start. Above limit roughly corresponds to the case, when bind hash table is full and we turned on mechanism of allowing to bind more reuse-enabled sockets, so it does not change behaviour of other sockets. Signed-off-by: NEvgeniy Polyakov <zbr@ioremap.net> Tested-by: NDenys Fedoryschenko <denys@visp.net.lb> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Acked-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 1月, 2009 1 次提交
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由 Randy Dunlap 提交于
Fix (delete) more mac80211 kernel-doc: Warning(linux-2.6.28-git13//include/net/mac80211.h:375): Excess struct/union/enum/typedef member 'retry_count' description in 'ieee80211_tx_info' Warning(linux-2.6.28-git13//net/mac80211/sta_info.h:308): Excess struct/union/enum/typedef member 'last_txrate' description in 'sta_info' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 1月, 2009 1 次提交
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由 Inaky Perez-Gonzalez 提交于
The kernel-doc was referring to member @debufs_dentry instead of @debugfs_dentry. Reported by Randy Dunlap http://marc.info/?l=linux-netdev&m=123147942302885&w=2 As well, escape the colon in the field's text description, as it is causing the generated text to be erraticly broken up (with paragraphs moved down). Could not find a reason why it is happening so, even when other field descriptions use colons and work as expected. Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 1月, 2009 2 次提交
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由 Inaky Perez-Gonzalez 提交于
Reported by Randy Dunlap from a warning in the v2.6.29 merge window tree as of 2009/1/8. Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
This patch adds GRO support for IPv6. IPv6 GRO supports extension headers in the same way as GSO (by using the same infrastructure). It's also simpler compared to IPv4 since we no longer have to worry about fragmentation attributes or header checksums. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 1月, 2009 1 次提交
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由 Inaky Perez-Gonzalez 提交于
Definitions for the user/kernel API protocol through generic netlink. User space can copy it verbatim and use it. Kernel API definition declares the main data types and calls for the drivers to integrate into the WiMAX stack. Provides usage documentation. Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 07 1月, 2009 2 次提交
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由 Dan Williams 提交于
Use the general-purpose channel allocation provided by dmaengine. Reviewed-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
Simply, if a client wants any dmaengine channel then prevent all dmaengine modules from being removed. Once the clients are done re-enable module removal. Why?, beyond reducing complication: 1/ Tracking reference counts per-transaction in an efficient manner, as is currently done, requires a complicated scheme to avoid cache-line bouncing effects. 2/ Per-transaction ref-counting gives the false impression that a dma-driver can be gracefully removed ahead of its user (net, md, or dma-slave) 3/ None of the in-tree dma-drivers talk to hot pluggable hardware, but if such an engine were built one day we still would not need to notify clients of remove events. The driver can simply return NULL to a ->prep() request, something that is much easier for a client to handle. Reviewed-by: NAndrew Morton <akpm@linux-foundation.org> Acked-by: NMaciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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- 05 1月, 2009 1 次提交
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由 David S. Miller 提交于
Thanks to excellent diagnosis by Eduard Guzovsky. The core problem is that on a network with lots of active multicast traffic, the neighbour cache can fill up. If we try to allocate a new route and thus neighbour cache entry, the bog-standard GC attempt the neighbour layer does in ineffective because route entries hold a reference to the existing neighbour entries and GC can only liberate entries with no references. IPV4 already has a way to handle this, by doing a route cache GC in such situations (when neigh attach returns -ENOBUFS). So simply mimick this on the ipv6 side. Tested-by: NEduard Guzovsky <eguzovsky@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 1月, 2009 1 次提交
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由 Paul Moore 提交于
Update the NetLabel kernel API to expose the new features added in kernel releases 2.6.25 and 2.6.28: the static/fallback label functionality and network address based selectors. Signed-off-by: NPaul Moore <paul.moore@hp.com>
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- 26 12月, 2008 2 次提交
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由 Vegard Nossum 提交于
See commit 1045b03e ("netlink: fix overrun in attribute iteration") for a detailed explanation of why this patch is necessary. In short, nlmsg_next() can make "remaining" go negative, and the remaining >= sizeof(...) comparison will promote "remaining" to an unsigned type, which means that the expression will evaluate to true for negative numbers, even though it was not intended. I put "theoretical" in the title because I have no evidence that this can actually happen, but I suspect that a crafted netlink packet can trigger some badness. Note that the last test, which seemingly has the exact same problem (also true for nla_ok()), is perfectly OK, since we already know that remaining is positive. Signed-off-by: NVegard Nossum <vegard.nossum@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Wei Yongjun 提交于
Implement socket option SCTP_GET_ASSOC_NUMBER of the latest ietf socket extensions API draft. 8.2.5. Get the Current Number of Associations (SCTP_GET_ASSOC_NUMBER) This option gets the current number of associations that are attached to a one-to-many style socket. The option value is an uint32_t. Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 12月, 2008 1 次提交
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由 Hendrik Brueckner 提交于
Provide a locking free version of iucv_message_receive and iucv_message_send that do not call local_bh_enable in a spin_lock_(bh|irqsave)() context. Signed-off-by: NHendrik Brueckner <brueckner@linux.vnet.ibm.com>
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- 22 12月, 2008 1 次提交
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由 Don Skidmore 提交于
Data Center Bridging (DCB) had no way to know if setstate had failed in the driver. This patch enables dcb netlink code to handle the status for the DCB setstate interface. Likewise it allows the driver to return a failed status if MSI-X isn't enabled. Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com> Signed-off-by: NEric W Multanen <eric.w.multanen@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 12月, 2008 4 次提交
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由 Kalle Valo 提交于
This patch implements dynamic power save for mac80211. Basically it means enabling power save mode after an idle period. Implementing it dynamically gives a good compromise of low power consumption and low latency. Some hardware have support for this in firmware, but some require the host to do it. The dynamic power save is implemented by adding an timeout to ieee80211_subif_start_xmit(). The timeout can be enabled from userspace with Wireless Extensions. For example, the command below enables the dynamic power save and sets the time timeout to 500 ms: iwconfig wlan0 power timeout 500m Power save now only works with devices which handle power save in firmware. It's also disabled by default and the heuristics when and how to enable is considered as a policy decision and will be left for the userspace to handle. In case the firmware has support for this, drivers can disable this feature with IEEE80211_HW_NO_STACK_DYNAMIC_PS. Big thanks to Johannes Berg for the help with the design and code. Signed-off-by: NKalle Valo <kalle.valo@nokia.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Jouni Malinen 提交于
This patch adds option for HT-enabled drivers to report HT rates (HT20/HT40, short GI, MCS index) to mac80211. These rates are currently not in the rate table, so the rate_idx is used to indicate MCS index. Signed-off-by: NJouni Malinen <jouni.malinen@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Sujith 提交于
HT management is done differently for AP and STA modes, unify to just the ->config() callback since HT is fundamentally a PHY property and cannot be per-BSS. Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote the channel type ( NO_HT, HT20, HT40+, HT40- ). Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NSujith <Sujith.Manoharan@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Henning Rogge 提交于
This patch adds signal strength and transmission bitrate to the station_info of nl80211. Signed-off-by: NHenning Rogge <rogge@fgan.de> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 18 12月, 2008 2 次提交
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由 Rémi Denis-Courmont 提交于
GPRS TX flow control won't need to lock the underlying socket anymore. Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Samuel Ortiz 提交于
We need to pad irda_skb_cb in order to keep it safe accross dev_queue_xmit() calls. This is some ugly and temporary hack triggered by recent qisc code changes. Even though it fixes bugzilla.kernel.org bug #11795, it will be replaced by a proper fix before 2.6.29 is released. Signed-off-by: NSamuel Ortiz <samuel@sortiz.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 12月, 2008 2 次提交
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由 Herbert Xu 提交于
This patch adds the TCP-specific portion of GRO. The criterion for merging is extremely strict (the TCP header must match exactly apart from the checksum) so as to allow refragmentation. Otherwise this is pretty much identical to LRO, except that we support the merging of ECN packets. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
This patch adds GRO support for IPv4. The criteria for merging is more stringent than LRO, in particular, we require all fields in the IP header to be identical except for the length, ID and checksum. In addition, the ID must form an arithmetic sequence with a difference of one. The ID requirement might seem overly strict, however, most hardware TSO solutions already obey this rule. Linux itself also obeys this whether GSO is in use or not. In future we could relax this rule by storing the IDs (or rather making sure that we don't drop them when pulling the aggregate skb's tail). Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 12月, 2008 4 次提交
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由 Christian Lamparter 提交于
This patch replaces the newly introduced sta_notify_ps function, which can be used to notify the driver about every power state transition for all associated stations, by integrating its functionality back into the original sta_notify callback. Signed-off-by: NChristian Lamparter <chunkeey@web.de> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
There's no driver that actually does fragmentation on the device, and the callback is buggy (when it returns an error, mac80211's fragmentation status is changed so reading the frag threshold from userspace reads the new value despite the error). Let's just remove it, if we really find some hardware supporting it we can add it back later. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 John W. Linville 提交于
Also remove auth_algo which is unused. Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Mention more possible STA entries and document the atomic requirement. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 12月, 2008 1 次提交
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由 Benjamin Thery 提交于
Preliminary work to make IPv6 multicast forwarding netns-aware. Declare variable 'reg_vif_num' per-namespace, moves into struct netns_ipv6. At the moment, this variable is only referenced in init_net. Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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