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path: root/drivers/net/wireless/ipw2100.c
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2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-02Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (37 commits) [netdrvr] hp100: encapsulate all non-module code drivers/net/wireless/{airo,ipw2100}: fix error handling bugs [netdrvr] phy: Fix bugs in error handling [PATCH] spidernet: Use pci_dma_mapping_error() [PATCH] sky2: version 1.9 [PATCH] sky2: fragmented receive for large MTU [PATCH] sky2: use netif_tx_lock instead of LLTX [PATCH] sky2: incremental transmit completion [PATCH] sky2: name irq after eth for irqbalance [PATCH] sky2: workarounds for some 88e806x chips [PATCH] sky2: use standard pci register capabilties for error register [PATCH] sky2: gigabit full duplex negotiation e100, e1000, ixgb: increment version numbers ixgb: convert to netdev_priv(netdev) ixgb: combine more rx descriptors to improve performance e1000: possible memory leak in e1000_set_ringparam e1000: Janitor: Use #defined values for literals e1000: don't strip vlan ID if 8021q claims it e1000: rework polarity, NVM, eeprom code and fixes. e1000: driver state fixes (race fix) ...
2006-10-02[PATCH] remove remaining errno and __KERNEL_SYSCALLS__ referencesArnd Bergmann
The last in-kernel user of errno is gone, so we should remove the definition and everything referring to it. This also removes the now-unused lib/execve.c file that was introduced earlier. Also remove every trace of __KERNEL_SYSCALLS__ that still remained in the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Hirokazu Takata <takata.hirokazu@renesas.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01drivers/net/wireless/{airo,ipw2100}: fix error handling bugsJeff Garzik
airo: * fix oops, if !CONFIG_PROC_FS (create_proc_entry always returns NULL) * handle pci_register_driver() failure. if it fails, we really do want to exit, rather than (as a comment indicates) return success because-we-are-a-library. * #if 0 have_isa_dev variable, which is assigned a value but never used ipw2100: * handle sysfs_create_group() failure * handle driver_create_file() failure Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-01[PATCH] maximum latency tracking infrastructureArjan van de Ven
Add infrastructure to track "maximum allowable latency" for power saving policies. The reason for adding this infrastructure is that power management in the idle loop needs to make a tradeoff between latency and power savings (deeper power save modes have a longer latency to running code again). The code that today makes this tradeoff just does a rather simple algorithm; however this is not good enough: There are devices and use cases where a lower latency is required than that the higher power saving states provide. An example would be audio playback, but another example is the ipw2100 wireless driver that right now has a very direct and ugly acpi hook to disable some higher power states randomly when it gets certain types of error. The proposed solution is to have an interface where drivers can * announce the maximum latency (in microseconds) that they can deal with * modify this latency * give up their constraint and a function where the code that decides on power saving strategy can query the current global desired maximum. This patch has a user of each side: on the consumer side, ACPI is patched to use this, on the producer side the ipw2100 driver is patched. A generic maximum latency is also registered of 2 timer ticks (more and you lose accurate time tracking after all). While the existing users of the patch are x86 specific, the infrastructure is not. I'd like to ask the arch maintainers of other architectures if the infrastructure is generic enough for their use (assuming the architecture has such a tradeoff as concept at all), and the sound/multimedia driver owners to look at the driver facing API to see if this is something they can use. [akpm@osdl.org: cleanups] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jesse Barnes <jesse.barnes@intel.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-25[PATCH] WE-21 for ipw2100Jean Tourrilhes
Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-09-13drivers/net: const-ify ethtool_ops declarationsJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-06Merge branch 'upstream' of ↵Jeff Garzik
master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream
2006-08-29[PATCH] ipw2100: Fix deadlock detected by lockdepZhu Yi
Fix by removing dependency between priv->action_sem and rtnl semaphore. Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-08-19drivers/net: Remove deprecated use of pci_module_init()Jeff Garzik
From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-02[PATCH] irq-flags: drivers/net: Use the new IRQF_ constantsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: occuring -> occurringAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-26spelling fixesAndreas Mohr
acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-17[PATCH] ipw2100: Update version ipw2100 stamp to 1.2.2Zhu Yi
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-03-17[PATCH] ipw2100: move mutex.h include from ipw2100.c to ipw2100.hZhu Yi
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-03-17[PATCH] ipw2100: semaphore to mutexes conversionIngo Molnar
semaphore to mutexes conversion. the conversion was generated via scripts, and the result was validated automatically via a script as well. build-tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-03-17[PATCH] ipw2100: Fix radiotap code gcc warningZhu Yi
Fix gcc warning: ipw2100.c:2460: ISO C90 forbids mixed declarations and code Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-03-17[PATCH] ipw2100: add radiotap headers to packtes captured in monitor modeStefan Rompf
Signed-off-by: Stefan Rompf <stefan@loplof.de> Signed-off-by: Andrea Merello <andreamrl at tiscali it> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-03-17[PATCH] ipw2x00: expend Copyright to 2006Zhu Yi
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] increase ipw2100 driver version to git-1.1.4Zhu Yi
Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: remove white space and better format the codeZhu Yi
Signed-off-by: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: Add generic geo informationZhu Yi
This patch fixes a BUG_ON for the latest ieee80211 change. Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: Make iwconfig txpower setting consistent with user inputZhu Yi
Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: Add LEAP authentication algorithm supportZhu Yi
Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] drivers/net/wireless/ipw2100.c: make ipw2100_wpa_assoc_frame() staticAdrian Bunk
This patch makes the needlessly global ipw2100_wpa_assoc_frame() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: Fix setting txpower failed problemZhu Yi
The ipw2100 driver misunderstood the parameter of txpower. Tx Power off means turn off the radio, but the driver interpret it as "can't set txpower". So when getting the txpower, it sets disabled=1 to the iwconifg tool in managed mode. And the tool will display "Tx Power off" when disabled=1. Now, in managed mode, iwconfig will not show "TX Power" if the radio is not switched off. It will only display "Tx Power off" only if the radio is killed. Signed-off-by: Hong Liu <hong.liu@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-30[PATCH] ipw2100: Fix a gcc compile warningZhu Yi
drivers/net/wireless/ipw2100.c:2236: warning: `ipw2100_match_buf' defined but not used Cc: Yi Zhu <yi.zhu@intel.com> Cc: James Ketrenos <jketreno@linux.intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-16[PATCH] ipw2100: remove code for WIRELESS_EXT < 18Adrian Bunk
WIRELESS_EXT < 18 will never be true in the kernel. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-01-14[PATCH] Unlinline a bunch of other functionsArjan van de Ven
Remove the "inline" keyword from a bunch of big functions in the kernel with the goal of shrinking it by 30kb to 40kb Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09[patch] ipw2100: support WEXT-18 enc_capa v3Dan Williams
This patch allows ipw2100 driver to advertise the WPA-related encryption options that it does really support. It's necessary to work correctly with NetworkManager and other programs that actually check driver & card capabilities. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01[PATCH] Duplicate IPW_DEBUG option for ipw2100 and 2200Brice Goglin
There are currently two IPW_DEBUG options in drivers/net/wireless/Kconfig (one for ipw2100 and one for ipw2200). The attached patch splits it into IPW2100_DEBUG and IPW2200_DEBUG. Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org> Cc: "James P. Ketrenos" <ipw2100-admin@linux.intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-18[PATCH] ipw2100: Fix 'Driver using old /proc/net/wireless...' messageJames Ketrenos
ipw2100: Fix 'Driver using old /proc/net/wireless...' message Wireless extensions moved the get_wireless_stats handler from being in net_device into wireless_handler. A prior instance of this patch resolved the issue for the ipw2200. This one fixes it for the ipw2100. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-11-09[wireless ipw2100] kill unused-var warnings for debug-disabled codeJeff Garzik
2005-11-09Merge rsync://bughost.org/repos/ipw-delta/Jeff Garzik
2005-11-07[PATCH] wireless net: Conversions of kmalloc/memset to kzallocPanagiotis Issaris
More conversions of kmalloc/memset to kzalloc Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-11-07Removed warning about TKIP not being configured if countermeasures areJames Ketrenos
configured. Countermeasures default to being turned off when wpa_supplicant runs, regardless of if TKIP is being used. They are only turned on if a TKIP is running. The warning we were printing is therefore not needed. Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07Pulled out a stray KERNEL_VERSION check around the suspend handler.James Ketrenos
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07Updated driver version stamps for ipw2100 (1.1.3) and ipw2200 (1.0.7)James Ketrenos
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07Removed PF_SYNCTHREAD legacy.James Ketrenos
The PF_SYNCTHREAD check was introduced to try and remain compatible with SWSUSP2. This check is no longer needed with newer versions. Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07Don't set hardware WEP if we are actually using TKIP/AES.Hong Liu
Signed-off-by: Hong Liu <hong.liu@intel.com>
2005-11-07Move code from ipw2100_wpa_enable to IPW2100_PARAM_DROP_UNENCRYPTED toZhu Yi
support wpa_supplicant with open AP. We need this to make driver_ipw work. driver_ext has already had the similar code with the WE-18 support added. Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07[Bug 339] Fix ipw2100 iwconfig set/get txpower.Liu Hong
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07Fixed WEP on ipw2100 (priv->sec was being used instead of
priv->ieee->sec)
2005-11-07Catch ipw2100 up to equivelancy with v1.1.1James Ketrenos
* Added WE-18 support. This allows the use of -Dext with wpa_supplicant > 0.4.x (thanks to Hong Liu) * Fixed #339 problem with iwconfig set/get txpower (thanks to Hong Liu) * Fixed #598 problem when with error messages when module loaded with 'disable=1' (thanks to Hong Liu) * Fixed #640 problem with 'iwlist retry' now showing min/max retry * Fixed compatibility with wpa_supplicant and the new -Dipw interface (that included a fix for 64-bit compatibility) * Added CFG_CRC_CHECK which allows passing through packets with bad CRCs while in monitor mode. Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07IPW_DEBUG has already included DRV_NAME, remove double prefix print.Zhu Yi
2005-11-07Ran scripts/Lindent on drivers/net/wireless/ipw2{1,2}00.{c,h}James Ketrenos
No other changes. Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-09-21[PATCH] ieee80211: Updated ipw2100 to be compatible with ieee80211's ↵James Ketrenos
hard_start_xmit change tree ee48cbe413b795d6be454b9baf4f3bd3d74814cb parent 49856b147763bd6847e0d8f53aee1ddd61385638 author James Ketrenos <jketreno@linux.intel.com> 1126716634 -0500 committer James Ketrenos <jketreno@linux.intel.com> 1127316024 -0500 Updated ipw2100 to be compatible with ieee80211's hard_start_xmit change. Signed-off-by: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-21[PATCH] ieee80211: Updated ipw2100 to be compatible with ieee80211_hdr changesJames Ketrenos
tree 992b203395c50342f1cced415acae6177344e270 parent c59bb604a2ff4e40232ff0422e7adc44e3b007a0 author James Ketrenos <jketreno@linux.intel.com> 1126714006 -0500 committer James Ketrenos <jketreno@linux.intel.com> 1127315910 -0500 Updated ipw2100 to be compatible with ieee80211_hdr changes. Signed-off-by: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14[PATCH] drivers/net: fix-up schedule_timeout() usageNishanth Aravamudan
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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