- 10 Oct, 2007 40 commits
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Gerrit Renker authored
This patch reduces the number of timestamps taken in the receive path for each packet. The ccid3_hc_tx_update_x() routine is called in * the receive path for each CCID3-controlled packet * for the nofeedback timer (if no feedback arrives during 4 RTT) Currently, when there is no loss, each packet gets timestamped twice. The patch resolves this by recycling the first timestamp taken on packet reception for RTT sampling. When the no_feedback_timer() is called, then the timestamp argument is simply set to NULL - so that ccid3_hc_tx_update_x() takes care of the logic. Signed-off-by:
Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by:
Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michael Wu authored
Might as well rename ieee80211_cfg.h to cfg.h to keep things consistent. Signed-off-by:
Michael Wu <flamingice@sourmilk.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Johannes Berg authored
Each station has a vlan_id that is useless. Remove it. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Johannes Berg authored
The parse result typedef isn't needed. Signed-off-by:
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Johannes Berg authored
It's just painful to have the extra ieee80211_ prefix. Signed-off-by:
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Johannes Berg authored
This makes mac80211 print out the wiphy name instead of the master device name where appropriate. Signed-off-by:
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Johannes Berg authored
This is unused. Signed-off-by:
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Johannes Berg authored
This fixes a warning about NUM_IEEE80211_MODES missing in a switch statement. Intentionally do not add a default case so we get warnings at these places if we need to add new modes. Signed-off-by:
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Johannes Berg authored
Add more mac80211 documentation. Signed-off-by:
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Johannes Berg authored
The IEEE80211_CONF_SSID_HIDDEN setting is not useful for any driver we have and should be a per-interface setting anyway. Remove it. Signed-off-by:
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Johannes Berg authored
This patch removes the key threshold stuff from mac80211. I have patches for later that add it as a per-key setting to nl/cfg80211. Signed-off-by:
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Johannes Berg authored
This patch allows drivers to indicate bad FCS/PLCP CRC to the stack and have the stack drop packets like that except for monitor interfaces. Signed-off-by:
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Vladimir Davydov authored
Fixing memory alignment problems on the blackfin architecture (maybe on the ARM also) Signed-off-by:
Vladimir Davydov <vladimir.davydov@promwad.com> Signed-off-by:
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Vladimir Davydov authored
Reserve two bytes to align pointer to the IP header. Signed-off-by:
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Ryan Mallon authored
The following patch fixes the tx transmit timeout problem, which is caused by the interrupts being incorrectly check and masked. The patch moves the interrupt masking code so that interrupts are enabled only when the driver is registered and only disabled when the driver is unregistered. Signed-off-by:
Ryan Mallon <ryan@bluewatersys.com> Signed-off-by:
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Ryan Mallon authored
Corrects a minor bug with priv->dnld_sent being set incorrectly in if_cs_host_to_card. Signed-off-by:
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Larry Finger authored
This change cleans up the radio-related messages in several ways. (1) The state of the rfkill switch is assumed to be on, rather than tested. Now, any user without such a switch will not see any messages. For devices with such a switch, a message will be logged only if the initial state is off, or if the switch is toggled. (2) The routine for testing the switch state is no longer inline. (3) The LED handling routine is simplified. (4) The "Radio turned off" message that has confused some users has been changed to "Radio initialized". This patch is patterned after a similar change to b43 by Michael Buesch. Signed-off-by:Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Larry Finger authored
This adds support for turning the radio off in software. That's useful in environments, where you don't want the RF to radiate any signals, but don't want to bring the interface down. This patch is based on a similar patch of b43 by Michael Buesch. Signed-off-by:
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Michael Buesch authored
This adds support for turning the radio off in software. That's useful in environments, where you don't want the RF to radiate any signals, but don't want to bring the interface down. Cc: Larry Finger <larry.finger@lwfinger.net> Signed-off-by:
Michael Buesch <mb@bu3sch.de> Signed-off-by:
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Michael Buesch authored
This message is useless. Only report state changes. Cc: Larry Finger <larry.finger@lwfinger.net> Signed-off-by:
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Michael Buesch authored
This adds support for disabling the radio and setting the TXpower through wext. This also fixes the prism TXpower ioctl (It always overwrote the TXpower value in ieee80211_hw_config()) Signed-off-by:
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Johannes Berg authored
It seems I was actually able to hit this deadlock, on my quad G5 softmac locks up more often than not. This fixes it by using an own workqueue that can safely be flushed under RTNL. Not sure if the patch is correct with the workqueue naming. And don't think with the patch it doesn't continually lock up. It still does, just doesn't invoke lockdep warnings all the time. Signed-off-by:
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Michael Buesch authored
Also cleanup the code a bit and remove the inline. Signed-off-by:
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Michael Buesch authored
This fixes all Sparse warnings in SSB. No semantics change. Signed-off-by:
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Michael Buesch authored
On a PCI bus use ioreadX() and iowriteX(). We map the I/O space with pci_iomap(), so we must use the correct accessor functions, too. readX() and writeX() are not guaranteed to accept the cookie returned from pci_iomap() (though, it currently works on most architectures). Signed-off-by:
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Michael Buesch authored
It's not required and the txpower adjustment must not be in atomic. Signed-off-by:
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Andrew Morton authored
Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Ulrich Kunitz authored
Reinhard Speyerer reported at 2007-08-10 a new device. Here are the information strings. Product: Telegent TG54USB WLAN Adapter USB ID: 129b:1666 Chip ID: zd1211 chip 129b:1666 v4330 high 00-01-36 RF2959_RF pa0 ----- FCC ID: N89-UW620Z Signed-off-by:
Ulrich Kunitz <kune@deine-taler.de> Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
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Larry Finger authored
Some distros ship bcm43xx with debugging printout disabled. For those BCM43xx devices with radio on/off switches, this makes it impossible to know if the radio is on or off. This patch changes a pair of debug printk's into ordinary printk's. It also changes the message that prints when the radio is initialized to the off state as the old message seems to confuse users. Signed-off-by:
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Jesper Juhl authored
No need to initialize to NULL when variable is never used before it's assigned the return value of a kmalloc() call. Signed-off-by:
Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by:
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Christian Borntraeger authored
Am Freitag, 21. September 2007 schrieb Herbert Xu: > Please don't use LLTX in new drivers. We're trying to get rid > of it since it's > > 1) unnecessary; > 2) causes problems with AF_PACKET seeing things twice. I suggest to document that LLTX is deprecated. Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Acked-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Zhu Yi authored
Signed-off-by:
Zhu Yi <yi.zhu@intel.com> Signed-off-by:
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Jamal Hadi Salim authored
For N cpus, with full throttle traffic on all N CPUs, funneling traffic to the same ethernet device, the devices queue lock is contended by all N CPUs constantly. The TX lock is only contended by a max of 2 CPUS. In the current mode of operation, after all the work of entering the dequeue region, we may endup aborting the path if we are unable to get the tx lock and go back to contend for the queue lock. As N goes up, this gets worse. The changes in this patch result in a small increase in performance with a 4CPU (2xdual-core) with no irq binding. Both e1000 and tg3 showed similar behavior; Signed-off-by:
Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by:
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Daniel Lezcano authored
Doing this makes loopback.c a better example of how to do a simple network device, and it removes the special case single static allocation of a struct net_device, hopefully making maintenance easier. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
Daniel Lezcano <dlezcano@fr.ibm.com> Acked-By:
Kirill Korotaev <dev@sw.ru> Acked-by:
Benjamin Thery <benjamin.thery@bull.net>
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Daniel Lezcano authored
This patch replaces all occurences to the static variable loopback_dev to a pointer loopback_dev. That provides the mindless, trivial, uninteressting change part for the dynamic allocation for the loopback. Signed-off-by:
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Johannes Berg authored
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David S. Miller authored
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Ilpo Järvinen authored
There's no reason to clear the sacktag skb hint when small part of the rexmit queue changes. Account changes (if any) instead when fragmenting/collapsing. RTO/FRTO do not touch SACKED_ACKED bits so no need to discard SACK tag hint at all. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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Ilpo Järvinen authored
Most of the description that follows comes from my mail to netdev (some editing done): Main obstacle to FRTO use is its deployment as it has to be on the sender side where as wireless link is often the receiver's access link. Take initiative on behalf of unlucky receivers and enable it by default in future Linux TCP senders. Also IETF seems to interested in advancing FRTO from experimental [1]. How does FRTO help? =================== FRTO detects spurious RTOs and avoids a number of unnecessary retransmissions and a couple of other problems that can arise due to incorrect guess made at RTO (i.e., that segments were lost when they actually got delayed which is likely to occur e.g. in wireless environments with link-layer retransmission). Though FRTO cannot prevent the first (potentially unnecessary) retransmission at RTO, I suspect that it won't cost that much even if you have to pay for each bit (won't be that high percentage out of all packets after all :-)). However, usually when you have a spurious RTO, not only the first segment unnecessarily retransmitted but the *whole window*. It goes like this: all cumulative ACKs got delayed due to in-order delivery, then TCP will actually send 1.5*original cwnd worth of data in the RTO's slow-start when the delayed ACKs arrive (basically the original cwnd worth of it unnecessarily). In case one is interested in minimizing unnecessary retransmissions e.g. due to cost, those rexmissions must never see daylight. Besides, in the worst case the generated burst overloads the bottleneck buffers which is likely to significantly delay the further progress of the flow. In case of ll rexmissions, ACK compression often occurs at the same time making the burst very "sharp edged" (in that case TCP often loses most of the segments above high_seq => very bad performance too). When FRTO is enabled, those unnecessary retransmissions are fully avoided except for the first segment and the cwnd behavior after detected spurious RTO is determined by the response (one can tune that by sysctl). Basic version (non-SACK enhanced one), FRTO can fail to detect spurious RTO as spurious and falls back to conservative behavior. ACK lossage is much less significant than reordering, usually the FRTO can detect spurious RTO if at least 2 cumulative ACKs from original window are preserved (excluding the ACK that advances to high_seq). With SACK-enhanced version, the detection is quite robust. FRTO should remove the need to set a high lower bound for the RTO estimator due to delay spikes that occur relatively common in some environments (esp. in wireless/cellular ones). [1] http://www1.ietf.org/mail-archive/web/tcpm/current/msg02862.htmlSigned-off-by:
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Ilpo Järvinen authored
Since the SACK enhanced FRTO was added, the code has been under test numerous times so remove "experimental" claim from the documentation. Also be a bit more verbose about the usage. Signed-off-by:
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