Commit Graph

11852 Commits

Author SHA1 Message Date
Linus Torvalds
8e91f178a2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  r8169: revert "r8169: read MAC address from EEPROM on init (2nd attempt)"
  r8169: use hardware auto-padding.
  igb: remove ASPM L0s workaround
  netxen: remove old flash check.
  mv643xx_eth: fix unicast address filter corruption on mtu change
  xfrm: Fix xfrm_state_find() wrt. wildcard source address.
  emac: Fix clock control for 405EX and 405EXr chips
  ixgbe: fix multiple unicast address support
  via-velocity: Fix DMA mapping length errors on transmit.
  qlge: bugfix: Pad outbound frames smaller than 60 bytes.
  qlge: bugfix: Move netif_napi_del() to common call point.
  qlge: bugfix: Tell hw to strip vlan header.
  qlge: bugfix: Increase filter on inbound csum.
  dnet: replace obsolete *netif_rx_* functions with *napi_*
  net: Add be2net driver.
  dnet: Fix warnings on 64-bit.
  dnet: Dave DNET ethernet controller driver (updated)
  ipv6:  Fix BUG when disabled ipv6 module is unloaded
  bnx2x: Using DMAE to initialize the chip
  bnx2x: Casting page alignment
  ...
2009-03-16 07:56:58 -07:00
françois romieu
ea8dbdd170 r8169: revert "r8169: read MAC address from EEPROM on init (2nd attempt)"
It fails on the following systems:
- RTL8169sc/8110sc (XID 18000000)
  reported by Tim Durack <tdurack@gmail.com> (x86)
- RTL8169sb/8110sb (XID 10000000)
  reported by Mikael Pettersson <mikpe@it.uu.se> (ARM)

The patch appeared to work on x86 for the following systems:
RTL8169sb/8110sb 10000000 PCI   (EXT)
RTL8110s         04000000 PCI   (EXT)
RTL8102e         24a00000 PCI-E (LOM)
RTL8168c/8111c   3c2000c0 PCI-E (LOM)
RTL8168b/8111b   38000000 PCI-E (LOM)
RTL8168b/8111b   38000000 PCI-E (EXT)

The patch exposes two problems:
1) while not completely wrong, mac addresses are not read correctly
   from the EEPROM
2) the MAC address registers are not correctly set

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-15 20:03:10 -07:00
françois romieu
97d477a914 r8169: use hardware auto-padding.
It shortens the code and fixes the current pci_unmap leak with
padded skb reported by Dave Jones.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-15 20:03:10 -07:00
Alexander Duyck
682337fe06 igb: remove ASPM L0s workaround
The L0s workaround should be moved into a pci quirk and so it is not
necessary in the driver.  This update removes the L0s workaround from the
igb driver.

This was the second half of the PCI quirk patch that Matthew Wilcox did
not pick up when he picked up the quirk patch.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-14 22:26:40 -07:00
Dhananjay Phadke
de9307c686 netxen: remove old flash check.
Remove flash size check which made sense only for ancient
boards with 1MB flash. The check is based on values read
from specific locations and fails with firmware size changes.

This prevents driver from getting right mac addresses.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-14 11:40:08 -07:00
Lennert Buytenhek
5a89392225 mv643xx_eth: fix unicast address filter corruption on mtu change
When mv643xx_eth_open() is called to up an interface, port_start()
will first re-program the unicast address filter, and then
re-initialise the PORT_CONFIG register, but that will disable unicast
promiscuous mode if it was enabled by the unicast address filter setup.

This isn't a problem on ifconfig up, as ->set_rx_mode() will be called
shortly afterwards which will program the filters again, but it does
trigger when changing the MTU, which calls mv643xx_eth_stop() and then
mv643xx_eth_open() by hand to repopulate the receive rings with skbuffs
of the new size.

Swap the initialisation of the PORT_START register and the call to
the unicast filter setup function to fix this.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 15:48:02 -07:00
Benjamin Herrenschmidt
9616a75505 emac: Fix clock control for 405EX and 405EXr chips
The EMAC variant in the 405EX and 405EXr chips needs the "440EP" type clock
control workaround to avoid lockups of the Rx side during reset.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Felix Radensky <felix@embedded-sol.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 13:48:46 -07:00
Chris Leech
e90d400c2b ixgbe: fix multiple unicast address support
Multiple unicast address support appears to have been broken with the
change to support net_device_ops.  This a regression from 2.6.28 to 2.6.29.

I'm not 100% on whether ndo_set_multicast_list can be NULL after this
or not.  If ndo_set_rx_mode is set everything _should_ be using it.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 13:40:36 -07:00
Dave Jones
59f8e169e2 via-velocity: Fix DMA mapping length errors on transmit.
From: Dave Jones <davej@redhat.com>

The dma-debug changes caught that this driver uses the
wrong DMA mapping length when skb_padto() does something.

With suggestions from Eric Dumazet.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 13:37:46 -07:00
Ron Mercer
855b0993f2 qlge: bugfix: Pad outbound frames smaller than 60 bytes.
With some asic configurations xmit of frames smaller than 60 bytes may
fail.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 11:27:25 -07:00
Ron Mercer
6612a6344a qlge: bugfix: Move netif_napi_del() to common call point.
Moving netif_napi_del() up the call chain so it will get called from all
exit points.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 11:27:24 -07:00
Ron Mercer
a7a655f22c qlge: bugfix: Tell hw to strip vlan header.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 11:27:24 -07:00
Ron Mercer
c3c6496dc3 qlge: bugfix: Increase filter on inbound csum.
Chip does not do UDP checksum when fragmentation occurs.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 11:27:23 -07:00
Ilya Yanok
9fae6c3f64 dnet: replace obsolete *netif_rx_* functions with *napi_*
*netif_rx_* functions is obsolete and removed in newer kernels so
we need to use corresponding *napi_* functions instead.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13 09:51:46 -07:00
Linus Torvalds
f1c7404e37 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sunhme: Fix qfe parent detection.
  sparc64: Fix lost interrupts on sun4u.
  sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS
  jsflash: stop defining MAJOR_NR
2009-03-12 09:27:53 -07:00
Sathya Perla
6b7c5b947c net: Add be2net driver.
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-11 23:32:22 -07:00
David S. Miller
2c5849ea38 dnet: Fix warnings on 64-bit.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-11 23:28:57 -07:00
Ilya Yanok
4796417417 dnet: Dave DNET ethernet controller driver (updated)
Driver for Dave DNET ethernet controller found on Dave/DENX QongEVB-LITE
FPGA. Heavily based on Dave sources, I've just adopted it to current
kernel version and done some code cleanup.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-11 23:26:02 -07:00
Eilon Greenstein
db434ac6bf bnx2x: Using DMAE to initialize the chip
There was a bug, which occasionally caused failure in PRAM initialization after
the cold boot.
Also incremented version number to 1.45.27.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-10 04:52:03 -07:00
Eilon Greenstein
6dc7d8c843 bnx2x: Casting page alignment
Adding a proper cast to the argument of PAGE_ALIGN macro so that the output
won't depend on its original type. Without this cast aligned value will be
truncated to the size of the argument type.

Reported-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Tested-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-10 04:52:02 -07:00
Eilon Greenstein
916c775ff2 bnx2x: Adding restriction on sge_buf_size
sge_buff_size may not be more than 0xffff.

Reported-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Tested-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-10 04:52:01 -07:00
Friedrich Oslage
0796e75503 sunhme: Fix qfe parent detection.
Signed-off-by: Friedrich Oslage <bluebird@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-08 20:13:42 -07:00
Christian Lamparter
c035002472 p54: fix race condition in memory management
This patch fixes a number of race conditions in the driver.
Up until now, "entry" pointer was initialized before acquiring the right lock.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-06 15:54:32 -05:00
Reinette Chatre
623d563e52 iwlwifi: fix error flow in iwl*_pci_probe
Both the agn and 3945 drivers has some problems with dealing with
errors in their probe functions. Ensure that a goto will undo only
things that was done before the goto was called.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-05 13:43:06 -05:00
Xose Vazquez Perez
ef4bb70d87 rt2x00 : more devices to rt73usb.c
add more usb_dev to rt73usb.c . IDs 'stolen' from the
windows inf file(10/21/2008, 1.03.02.0000) plus some
from the Ralink linux driver(2009_0206_RT73_Linux_STA_Drv1.1.0.2.tar.bz2)

Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-05 13:43:05 -05:00
Xose Vazquez Perez
9eb77ab076 rt2x00 : more devices to rt2500usb.c
add more usb_dev to rt2500usb.c . IDs 'stolen' from the
windows inf file(02/12/2009, 2.01.01.0015).

Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-03-05 13:43:05 -05:00
Patrick McHardy
72e2240f18 bonding: Fix device passed into ->ndo_neigh_setup().
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-05 01:57:44 -08:00
David S. Miller
77827a7cf3 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-03-04 23:59:54 -08:00
Meelis Roos
87786945fe tmspci: fix request_irq race
Currently, tmspci tokenring driver crashes on device initialization
because it requests its irq before initializing corresponding data
structures. Fix this by moving request_irq call to a safer place.

Signed-off-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-04 19:24:27 -08:00
Matt Carlson
9f8ac0b7b0 tg3: Fix 5906 link problems
Commit 6833c043f9 introduced the phy
auto-powerdown capability.  While the APD feature only works for 5761
and 5784 asic revisions, the (harmless portion of the) code was applied
to all 5705 and newer devices.  However, the 5906 phy departs from the
usual design.  This commit was interfering with the 5906's ability to
negotiate link against some switches.  This patch corrects the problem.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-04 15:08:19 -08:00
Roel Kluin
4a8fd2cfda sungem: another error printed one too early
Another error was printed one too early.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-04 00:11:53 -08:00
Roel Kluin
b9bdcd9bd7 net pcmcia: worklimit reaches -1
with while (--worklimit >= 0); worklimit reaches -1 after the loop. In
3c589_cs.c this caused a warning not to be printed.

In 3c574_cs.c contrastingly, el3_rx() treats worklimit differently:

static int el3_rx(struct net_device *dev, int worklimit)
{
	while (--worklimit >= 0) { ... }
	return worklimit;
}

el3_rx() is only called by function el3_interrupt(): twice:

static irqreturn_t el3_interrupt(int irq, void *dev_id)
{
        int work_budget = max_interrupt_work;
	while(...) {
		if (...)
			work_budget = el3_rx(dev, work_budget);
		if (...)
			work_budget = el3_rx(dev, work_budget);
		if (--work_budget < 0) {
		        ...
		        break;
		}
	}
}
The error path can occur 2 too early.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-04 00:11:52 -08:00
Roel Kluin
858b9ced6e net: more timeouts that reach -1
with while (timeout-- > 0); timeout reaches -1 after the loop, so the tests
below are off by one. also don't do an '< 0' test on an unsigned.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-04 00:11:42 -08:00
Peter Korsgaard
a1a69c8db7 dm9601: new vendor/product IDs
Add vendor/product IDs for new no name dm9601 compatible usb ethernet
adaptors.

Reported-by: Eric Lauriault <eric@linux.ca>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-03 23:48:16 -08:00
Linus Torvalds
f41bf2ab99 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] fix lots of ARM __devexit sillyness
  [ARM] 5417/1: Set the correct cacheid for ARMv6 CPUs with ARMv7 style MMU
  [ARM] 5416/1: Use unused address in v6_early_abort
  [ARM] 5411/1: S3C64XX: Fix EINT unmask
  [ARM] at91: fix for Atmel AT91 powersaving
  [ARM] RiscPC: Fix etherh oops
2009-03-03 14:12:41 -08:00
Russell King
07555c9880 OMAP: enable smc911x support for LDP platform
The following patch enables SMC911x support to work on the OMAP LDP
board.  Although the SMC911x driver will eventually be obsoleted, the
smsc911x patches are rather invasive for the -rc kernels.

Rather than risk destablising smsc911x, this simpler patch is preferred
to allow the network interface to work.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02 22:29:37 -08:00
Dmitriy Taychenachev
52c0326bea zaurus: add usb id for motomagx phones
The Motorola MOTOMAGX phones (Z6, E8, Zn5 so far) are providing
combined ACM/BLAN USB configuration. Since it has Vendor Specific
class, the corresponding drivers (cdc-acm, zaurus) can't find it just
by interface info. This patch adds usb id so the zaurus driver can
properly handle this combined device.

Signed-off-by: Dmitriy Taychenachev <dimichxp@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-01 20:48:08 -08:00
Bjørn Mork
05ffb3e287 usbnet: make usbnet_get_link() fall back to ethtool_op_get_link()
Make usbnet_get_link() fall back to ethtool_op_get_link() instead of
defaulting to 1.  
     
This makes usbnet_get_link return valid results without the need for a
driver specific check_connect or mii ops as long as the driver calls
netif_carrier_{on,off}() as appropriate.  cdc_ether is an example of
such a driver.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-01 20:45:40 -08:00
Eric W. Biederman
2cf48a10aa veth: Fix carrier detect
The current implementation of carrier detect in veth is broken.
It reports the link is down until both sides of the veth pair
are administatively up and then forever after it reports link up.

So fix veth so that it only reports link up when both interfaces
of the pair are administratively up.

Signed-off-by: Eric Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-01 20:44:21 -08:00
Bjørn Mork
cac477e8f1 cdc_ether: add usb id for Ericsson F3507g
The Ericsson F3507g wireless broadband module provides a CDC Ethernet
compliant interface, but identifies it as a "Mobile Direct Line" CDC
subclass, thereby preventing the CDC Ethernet class driver from picking
it up.  This patch adds the device id to cdc_ether.c as a workaround.

Ericsson has provided a "class" driver for this device:
http://kerneltrap.org/mailarchive/linux-net/2008/10/28/3832094
But closer inspection of that driver reveals that it adds little more
than duplication of code from cdc_ether.c.  See also
http://marc.info/?l=linux-usb&m=123334979706403&w=2

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-01 20:44:21 -08:00
Ivan Vecera
6709fe9a27 r8169: read MAC address from EEPROM on init (2nd attempt)
This is 2nd attempt to implement the initialization/reading of MAC address
from EEPROM. The first used PCI's VPD and there were some problems, some
devices are not able to read EEPROM content by VPD. The 2nd one uses direct
access to EEPROM through bit-banging interface and my testing results seem
to be much better.

I tested 5 systems each with different Realtek NICs and I didn't find any
problem. AFAIK Francois's NICs also works fine.

Original description:
This fixes the problem when MAC address is set by ifconfig or by
ip link commands and this address is stored in the device after
reboot. The power-off is needed to get right MAC address.
This is problem when Xen daemon is running because it renames the device
name from ethX to pethX and sets its MAC address to FE:FF:FF:FF:FF:FF.
After reboot the device is still using FE:FF:FF:FF:FF:FF.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-01 20:34:48 -08:00
David S. Miller
18963caaf5 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-02-28 15:36:58 -08:00
David S. Miller
98f8948f13 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-02-28 15:34:24 -08:00
Rini van Zetten
7958a45310 gianfar: Do right check on num_txbdfree
This patch fixes a wrong check on num_txbdfree. It could lead to
num_txbdfree become nagative.  Result was that the gianfar stops
sending data.

Changes from first version :
- removed a space between parens (David Millers comment)
- full email address in signed off line

Signed-off-by: Rini van Zetten <rini@arvoo.nl>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 03:18:48 -08:00
Michael Buesch
e92aa634a3 b44: Disable device on shutdown
Disable the SSB core on device shutdown.
This has two advantages:
1) A clean device shutdown is always desired here, because we disable
  the device's global crystal in the next statement.
2) This fixes a bug where the device will come up with the enable-bit
  set on the next initialization (without a reboot inbetween).
  This causes breakage on the second initialization due to code that
  checks this bit (ssb_device_is_enabled() checks).

Reported-by: Pantelis Koukousoulas <pktoss@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 22:35:02 -08:00
Michael Buesch
f8af11af85 b44: Unconditionally enable interrupt routing on reset
Unconditionally setup the IRQ routing on chip reset.
It's safe to call ssb_pcicore_dev_irqvecs_enable() unconditionally, because
it has internal checks for redundant calls.

This fixes problems where hardware will not come up properly
due to quirks in the enable-bit hardware.

Reported-by: Pantelis Koukousoulas <pktoss@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 22:33:00 -08:00
Randy Dunlap
9b58027bc2 net: fix hp-plus build error
hp-plus needs to call __alloc_eip_netdev() instead of
__alloc_ei_netdev() since it is linked with 8390p.o.

Fixes this build error:
ERROR: "__alloc_ei_netdev" [drivers/net/hp-plus.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 21:02:19 -08:00
Kiran Divekar
ab65f649d3 libertas: fix misuse of netdev_priv() and dev->ml_priv
The mesh and radiotap interfaces need to use the same private data as
the main wifi interface.  If the main wifi interface uses netdev_priv(),
but the other interfaces ->ml_priv, there's no way to figure out where
the private data actually is in the WEXT handlers and netdevice
callbacks.  So make everything use ->ml_priv.

Fixes botched netdev_priv() conversion introduced by "netdevice
libertas: Fix directly reference of netdev->priv", though admittedly
libertas' use of ->priv was somewhat "special".

Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Tested-by: Chris Ball <cjb@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-26 15:15:44 -05:00
Fenghua Yu
6aa03ab069 Fix iwlan DMA mapping direction
When iwlan runs on IOMMU, IOMMU generates a lot of PTE write faults
because PTE write bit is not set on some of PTE's.  This is because
iwlan driver calls DMA mapping with PCI_DMA_TODEVICE which is read only
in mapping PTE.  But iwlan device actually writes to the mapped page to
update its contents.  This issue is not exposed in swiotlb.  But VT-d
hardware can capture this fault and stop the fault transaction.

The following patch fixes the issue.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Tested-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-25 09:30:56 -08:00
David S. Miller
0c9a3aaaf3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-02-24 23:52:55 -08:00