- Dec 02, 2006
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Auke Kok authored
Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jesse Brandeburg authored
Add a new dynamic itr algorithm, with 2 modes, and make it the default operation mode. This greatly reduces latency and increases small packet performance, at the "cost" of some CPU utilization. Bulk traffic throughput is unaffected. The driver can limit the amount of interrupts per second that the adapter will generate for incoming packets. It does this by writing a value to the adapter that is based on the maximum amount of interrupts that the adapter will generate per second. Setting InterruptThrottleRate to a value greater or equal to 100 will program the adapter to send out a maximum of that many interrupts per second, even if more packets have come in. This reduces interrupt load on the system and can lower CPU utilization under heavy load, but will increase latency as packets are not processed as quickly. The default behaviour of the driver previously assumed a static InterruptThrottleRate value of 8000, providing a good fallback value for all traffic types,but lacking in small packet performance and latency. The hardware can handle many more small packets per second however, and for this reason an adaptive interrupt moderation algorithm was implemented. Since 7.3.x, the driver has two adaptive modes (setting 1 or 3) in which it dynamically adjusts the InterruptThrottleRate value based on the traffic that it receives. After determining the type of incoming traffic in the last timeframe, it will adjust the InterruptThrottleRate to an appropriate value for that traffic. The algorithm classifies the incoming traffic every interval into classes. Once the class is determined, the InterruptThrottleRate value is adjusted to suit that traffic type the best. There are three classes defined: "Bulk traffic", for large amounts of packets of normal size; "Low latency", for small amounts of traffic and/or a significant percentage of small packets; and "Lowest latency", for almost completely small packets or minimal traffic. In dynamic conservative mode, the InterruptThrottleRate value is set to 4000 for traffic that falls in class "Bulk traffic". If traffic falls in the "Low latency" or "Lowest latency" class, the InterruptThrottleRate is increased stepwise to 20000. This default mode is suitable for most applications. For situations where low latency is vital such as cluster or grid computing, the algorithm can reduce latency even more when InterruptThrottleRate is set to mode 1. In this mode, which operates the same as mode 3, the InterruptThrottleRate will be increased stepwise to 70000 for traffic in class "Lowest latency". Setting InterruptThrottleRate to 0 turns off any interrupt moderation and may improve small packet latency, but is generally not suitable for bulk throughput traffic. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jesse Brandeburg authored
Add a generic MSI interrupt routine that is IO read-free, speeding up MSI interrupt handling. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
This file needs some cleanups and reordering - logically order it so that relevant defines and code are together with properly quoted defaults. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jesse Brandeburg authored
Spec fix: don't set IDE unless we are actually setting the tx int delay time. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com>
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Jeff Kirsher authored
ICH8 will soon be followed by newer chipsets bearing the same acronym, thus we remove the '8' and make it independent of the version number in the platform name. Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jesse Brandeburg authored
Add a netif_wake/start_queue counter to the ethtool statistics to indicated to the user that their transmit ring could be too small for their workload. Signed-off-by:
Jesse brandeburg <jesse.brandeburg@intel.com> Cc: Jamal Hadi <hadi@cyberus.ca> Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
Add support for a Low Profile quad-port PCI-E adapter and 2 variants of the ICH8 systems' onboard NIC's. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jesse Brandeburg authored
This memsetting was added in a paranoid rage debugging TX hangs, but are no longer of importance. We can beef up the performance quite a bit removing them. Make sure to fill in next_to_watch to allow this. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com>
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Auke Kok authored
Simplify two calls to skb_put by removing one call to it. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Jeff Kirsher authored
Order pci-e capability struct according to bus/pci bus width ordering preserving the hard pci spec numbers. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jeff Kirsher authored
On ich systems during PHY power down to D3, the voltage regulators were left on. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jesse Brandeburg authored
IA64 SMP systems were seeing TX issues with multiple cpu's attempting to write tail registers unordered. This mmiowb() fixes the issue. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com>
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Auke Kok authored
Enable early receives on 82573 for jumbo frame performance. Jumbo's are only supported on 82573L with ASPM disabled. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
Enable TSO for IPV6. All e1000 hardware supports it. This reduces CPU utilizations by 50% when transmitting IPv6 frames. Fix symbol naming enabling ipv6 TSO. Turn off TSO6 for 10/100. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
Remove debugging code disabling MULR (multiple reads). It's not usable for a wide audience and there are no known problems with MULR right now. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Auke Kok authored
Small whitespace changes, comment changes, typo fixes. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com>
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Daniel Drake authored
Tested by Newsome on IRC zd1211 chip 0586:3401 v4330 high 00-13-49 AL2230_RF pa0 g--- Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Christian Lamparter authored
This patch adds two new defines for the SIOCSIWMLME to cover all kinds MLMEs (well, except REASSOC) through a ioctl. Signed-off-by:
Christian Lamparter <chunkeey@web.de> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Amit S. Kale authored
Signed-off-by:
Amit S. Kale <amitkale@netxen.com> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Stefano Brivio authored
The current bcm43xx driver does not contain code to handle PCI-E interfaces such as the BCM4311 and BCM4312. This patch, originally written by Stefano Brivio adds the necessary code to enable these interfaces. Signed-off-by:
Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Alexey Dobriyan authored
Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Holden Karau authored
Output signal strength information as part of iwlist scan - before it did not output any signal strength related information. Signed-off-by:
Holden Karau <holden@pigscanfly.ca> Cc: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dmitry Torokhov authored
NET: prism54 - whitespace cleanup Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dmitry Torokhov authored
NET: prism54 - fix potential race in reset scheduling There appears to be a race in reset scheduling logic - thread responsible for reseting the interface should clear "reset pending" flag before restarting the queue, otherwise timeout handler might not schedule another reset even if it is needed. This race is mostly theoretical as far as I can see but a race nonetheless. Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dmitry Torokhov authored
NET: atmel: whitespace cleanup Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dmitry Torokhov authored
NET: atmel - switch to using ARRAY_SIZE() Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Dmitry Torokhov authored
NET: atmel - do not initialize array over and over again Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Larry Finger authored
In the SoftMAC version of the IEEE 802.11 stack, not all duplicate messages are detected. For the most part, there is no difficulty; however for TKIP and CCMP encryption, the duplicates result in a "replay detected" log message where the received and previous values of the TSC are identical. This change adds a new variable to the ieee80211_device structure that holds the 'seq_ctl' value for the previous frame. When a new frame repeats the value, the frame is dropped and the appropriate counter is incremented. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Matthieu CASTET authored
Hi this patch allow to set the mtu between 1500 and 2304 (max octets in an MSDU) for devices using ieee80211 linux stack. Signed-off-by:
Matthieu CASTET <castet.matthieu@free.fr> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Daniel Drake authored
This patch adds a host_strip_iv_icv flag to ieee80211 which indicates that ieee80211_rx should strip the IV/ICV/other security features from the payload. This saves on some memmove() calls in the driver and seems like something that belongs in the stack as it can be used by bcm43xx, ipw2200, and zd1211rw I will submit the ipw2200 patch separately as it needs testing. This patch also adds some sensible variable reuse (idx vs keyidx) in ieee80211_rx Signed-off-by:
Daniel Drake <dsd@gentoo.org> Acked-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Daniel Drake authored
iNexQ UR055g: Tested by Todor T Zviskov zd1211 chip 1435:0711 v4330 high 00-10-a7 AL2230_RF pa0 g-- ZyXEL AG-225, FCC ID SI5WUB410: Tested by Nathan zd1211 chip 0586:3409 v4810 full 00-13-49 AL7230B_RF pa0 g--- Yakumo QuickWLAN USB: Tested by EdB zd1211 chip 0b3b:1630 v4330 high 00-01-36 RF2959_RF pa0 --- Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Larry Finger authored
The bcm43xx-softmac driver fails to set two quantities needed for iwlist to compute wireless quality when scanning. As a result, userland programs using the quality to determine the best connection fail. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Al Viro authored
The rest of 8390 conversions; ifdef cascade in 8390.h is gone now. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Al Viro authored
more 8390 conversions - mac8390, zorro8390 and hydra got the same treatment as arm etherh; one more case in 8390.h ifdef cascade is gone. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Al Viro authored
etherh and a handful of other odd drivers use different macros when building 8390.c. Since we generate a single 8390.o and then link with it, in any config with both oddball and normal 8390-based driver we will end up with breakage in at least one of them. Solution: take most of 8390.c into lib8390.c and have 8390.c, etherh.c and the rest of oddballs #include it. Helper macros are taken from 8390.h to whoever includes lib8390.c. That way odd drivers get separate instances of compiled 8390 stuff and stop stepping on each other's toes. 8390.h gets cleaned up - we don't have the cascade of ifdefs in there and are left with the stuff that can be used by any 8390-based driver. Current problems are exactly because of that cascade - we attempt to choose the set of helpers by looking at config and that, of course, doesn't work well when we have several sets needed by various drivers in our config. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Stephen Hemminger authored
Add MII ioctl support to the deprecated sk98lin driver. This allows comparison with skge driver's PHY settings. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Stephen Hemminger authored
Add support for dumping the registers in the deprecated sk98lin driver. This is allows for easier comparison with settings in new skge driver. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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