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linux_old1/drivers/net/wireless
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Luis R. Rodriguez ca0c7e5101 ath9k: Fix SW-IOMMU bounce buffer starvation 
This should fix the SW-IOMMU bounce buffer starvation
seen ok kernel.org bugzilla 11811:

http://bugzilla.kernel.org/show_bug.cgi?id=11811

Users on MacBook Pro 3.1/MacBook v2 would see something like:

DMA: Out of SW-IOMMU space for 4224 bytes at device 0000:0b:00.0

Unfortunately its only easy to trigger on MacBook Pro 3.1/MacBook v2
so far so its difficult to debug (even with swiotlb=force).

We were pci_unmap_single()'ing less bytes than what we called
for with pci_map_single() and as such we were starving
the swiotlb from its 64MB amount of bounce buffers. We remain
consistent and now always use sc->rxbufsize for RX. While at
it we update the beacon DMA maps as well to only use the data
portion of the skb, previous to this we were pci_map_single()'ing
more data for beaconing than what we tell the hardware it can use,
therefore pushing more iotlb abuse.

Still not sure why this is so easily triggerable on
MacBook Pro 3.1, it may be the hardware configuration
tends to use more memory > 3GB mark for DMA.

Signed-off-by: Maciej Zenczykowski <zenczykowski@gmail.com>
Signed-off-by: Bennyam Malavazi <Bennyam.Malavazi@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
 		2008-11-25 16:13:08 -05:00
..
ath5k ath5k: correct handling of rx status fields 2008-11-06 16:37:11 -05:00
ath9k ath9k: Fix SW-IOMMU bounce buffer starvation 2008-11-25 16:13:08 -05:00
b43 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
b43legacy mac80211: add multi-rate retry support 2008-10-06 18:14:57 -04:00
hostap hostap: pad the skb->cb usage in lieu of a proper fix 2008-11-12 16:54:22 -05:00
iwlwifi iwlagn: fix DMA sync 2008-11-25 16:13:08 -05:00
libertas libertas: fix buffer overrun 2008-10-29 17:54:35 -04:00
libertas_tf libertas_tf: fix skb tail pointer 2008-11-18 17:26:26 -05:00
p54 p54: fix build warnings 2008-10-27 17:46:11 -04:00
prism54 wireless: replace __FUNCTION__ with __func__ 2008-08-22 16:29:56 -04:00
rt2x00 rt2x00: Fix build error when mac80211=M rt2x00=Y 2008-10-29 17:54:35 -04:00
zd1211rw zd1211rw: Add 2 device IDs 2008-11-06 16:37:10 -05:00
Kconfig orinoco: Add MIC on TX and check on RX 2008-08-22 19:28:07 -04:00
Makefile orinoco: Move firmware download functionality into new module 2008-08-22 19:28:04 -04:00
adm8211.c mac80211: use nl80211 interface types 2008-09-15 16:48:23 -04:00
adm8211.h
…
airo.c wireless: Read scan flags correctly on x86-64 2008-09-24 16:17:58 -04:00
airo.h
…
airo_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
airport.c orinoco: Invoke firmware download in main driver 2008-08-22 19:28:05 -04:00
arlan-main.c
…
arlan-proc.c
…
arlan.h
…
atmel.c wireless: Read scan flags correctly on x86-64 2008-09-24 16:17:58 -04:00
atmel.h
…
atmel_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
atmel_pci.c
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hermes.c orinoco: Add function to execute Hermes initialisation commands synchronously 2008-08-22 19:28:04 -04:00
hermes.h orinoco: Add MIC on TX and check on RX 2008-08-22 19:28:07 -04:00
hermes_dld.c orinoco: Extend hermes_dld routines for Agere firmware 2008-08-22 19:28:05 -04:00
hermes_dld.h orinoco: Extend hermes_dld routines for Agere firmware 2008-08-22 19:28:05 -04:00
hermes_rid.h orinoco: Add WE-18 ioctls for WPA 2008-08-22 19:28:06 -04:00
i82586.h
…
i82593.h
…
ipw2100.c wireless: replace __FUNCTION__ with __func__ 2008-08-22 16:29:56 -04:00
ipw2100.h
…
ipw2200.c removed unused #include <version.h> 2008-08-18 11:05:15 -04:00
ipw2200.h wireless: replace __FUNCTION__ with __func__ 2008-08-22 16:29:56 -04:00
mac80211_hwsim.c device create: net: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
netwave_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
orinoco.c orinoco: reduce stack usage in firmware download path 2008-10-22 18:09:32 -04:00
orinoco.h orinoco: Add MIC on TX and check on RX 2008-08-22 19:28:07 -04:00
orinoco_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-10-16 11:26:26 -07:00
orinoco_nortel.c orinoco: Invoke firmware download in main driver 2008-08-22 19:28:05 -04:00
orinoco_pci.c orinoco: Invoke firmware download in main driver 2008-08-22 19:28:05 -04:00
orinoco_pci.h
…
orinoco_plx.c orinoco: Invoke firmware download in main driver 2008-08-22 19:28:05 -04:00
orinoco_tmd.c orinoco: Invoke firmware download in main driver 2008-08-22 19:28:05 -04:00
ray_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
ray_cs.h
…
rayctl.h
…
rndis_wlan.c wireless: Read scan flags correctly on x86-64 2008-09-24 16:17:58 -04:00
rtl818x.h rtl818x: merge tx/rx descriptor flags 2008-08-22 16:29:48 -04:00
rtl8180.h rtl818x: merge tx/rx descriptor flags 2008-08-22 16:29:48 -04:00
rtl8180_dev.c mac80211: add multi-rate retry support 2008-10-06 18:14:57 -04:00
rtl8180_grf5101.c
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rtl8180_grf5101.h
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rtl8180_max2820.c
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rtl8180_max2820.h
…
rtl8180_rtl8225.c
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rtl8180_rtl8225.h
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rtl8180_sa2400.c
…
rtl8180_sa2400.h
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rtl8187.h rtl818x: merge tx/rx descriptor flags 2008-08-22 16:29:48 -04:00
rtl8187_dev.c rtl8187 : support for Sitecom WL-168 0001 v4 2008-11-12 16:49:57 -05:00
rtl8187_rtl8225.c rtl8187: use different ANAPARAM*_OFF values for 8187B 2008-07-14 14:52:56 -04:00
rtl8187_rtl8225.h rtl8187: use different ANAPARAM*_OFF values for 8187B 2008-07-14 14:52:56 -04:00
spectrum_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-10-16 11:26:26 -07:00
strip.c Fix strip driver back up for ldisc/tty changes 2008-07-20 17:12:38 -07:00
wavelan.c net: Rationalise email address: Network Specific Parts 2008-10-13 19:01:08 -07:00
wavelan.h
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wavelan.p.h net: Rationalise email address: Network Specific Parts 2008-10-13 19:01:08 -07:00
wavelan_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
wavelan_cs.h
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wavelan_cs.p.h
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wl3501.h
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wl3501_cs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
zd1201.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-07-18 02:39:39 -07:00
zd1201.h
…