While playing with the firmware a while back, I discovered a way to
access the device's entire address space before the firmware has been
loaded.
Previously we were loading the firmware early on (during probe) so that
we could read the MAC address from the EEPROM and register a netdevice.
Now that we can read the EEPROM without having firmware, we can defer
firmware loading until later while still reading the MAC address early
on.
This has the advantage that zd1211rw can now be built into the kernel --
previously if this was the case, zd1211rw would be loaded before the
filesystem is available and firmware loading would fail.
Firmware load and other device initialization operations now happen the
first time the interface is brought up.
Some architectural changes were needed: handling of the is_zd1211b flag
was moved into the zd_usb structure, MAC address handling was obviously
changed, and a preinit_hw stage was added (the order is now: init,
preinit_hw, init_hw).
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tested by Zen Kato
zd1211b chip 0411:00da v4810 high 00-16-01 AL2230S_RF pa0 g--N-
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zen Kato has a device which reports the 0xa RF type. The vendor driver
treats this as AL2230S, the same as devices with the AL2230S bit in the POD.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zen Kato's device has a regulatory domain value of 0x49, which is not an
IEEE 802.11 code and is not even identified in the vendor driver.
Recent versions of the vendor driver don't even look at the regdomain
value any more, and just allow channels 1-11 everywhere. This patch
brings us more in line with that behaviour, by allowing channels 1-11
for regdomains which we don't know about.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Don't turn the radio on until the interface is up. This saves some power in
case the driver is loaded but the card is not used.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Callers of enable_MAC() shouldn't have to worry about the bits in the
response's status word (and most of them don't). The return value is
sufficient information.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Matteo Croce reported Aironet initialization failures. They were caused by
a race in airo. airo finds a free interface name, then initializes the card
and finally registers the interface. Another device may get the same name
in the meantime.
The reason airo gets its name early is to use it in informative printks and
to name the resources it requests. The printks will be just fine without
the interface name and the resources can use the driver's name - that's
what other network drivers do anyway.
One of the talkative functions is setup_card(). It is called once before
registration and can be called later again. Let's have an empty dev->name
during the first call, so it doesn't print the ugly "airo(eth%d)" message.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
airo's kernel thread and the IRQ handler are needed only when the interface
is up.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix an assymetry between pci_{enable,disable}_device. airo did not disable
the PCI device when unloading the module. This caused suspend failures
after modprobe -r airo && modprobe airo.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Similar patch to ipw2200. Round the timer used for RF kill
switch off to 1 second boundary to save power.
Build tested only, don't have this hardware.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Make the ipw2200 driver polling of rf kill switch occur on second boundaries to reduce
power. Making all the wakeup's in the system occur together reduces power, and keeps
CPU in idle longer.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
I failed to notice that a u16 was being passed to the hardware.
This fixes it.
Thanks to Kasper F. Brandt for finding this!
Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (31 commits)
firewire: fw-sbp2: fix DMA mapping of management ORBs
firewire: fw-sbp2: fix DMA mapping of command ORBs
firewire: fw-sbp2: fix DMA mapping of S/G tables
firewire: fw-sbp2: add a boundary check
firewire: fw-sbp2: correctly align page tables
firewire: fw-sbp2: memset wants string.h
firewire: fw-sbp2: use correct speed in sbp2_agent_reset
firewire: fw-sbp2: correctly dereference by container_of
firewire: Document userspace ioctl interface.
firewire: fw-sbp2: implement nonexclusive login
firewire: fw-sbp2: let SCSI shutdown commands through before logout
firewire: fw-sbp2: implement max sectors limit for some old bridges
firewire: simplify a struct type
firewire: support S100B...S400B and link slower than PHY
firewire: optimize gap count with 1394b leaf nodes
firewire: remove unused macro
firewire: missing newline in printk
firewire: fw-sbp2: remove unused struct member
ieee1394: remove old isochronous ABI
ieee1394: sbp2: change some module parameters from int to bool
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: handle cases of volume knobs generating relative values
HID: Logitech keyboard 0xc311 needs reset leds quirk
HID: support for logitech cordless desktop LX500 special mapping
HID: fix autocentering of PID devices
HID: separate quirks for report descriptor fixup
HID: Add NOGET quirk for all NCR devices
HID: support for Petalynx Maxter remote control
HID: fix mismatch between hid-input HUT find/search mapping and the HUT
HID: support for Gameron dual psx adaptor
USB HID: avoid flush_scheduled_work()
HID: Use menuconfig objects
HID: force hid-input for Microsoft SideWinder GameVoice device
HID: input mapping for Chicony KU-0418 tactical pad
HID: make debugging output runtime-configurable
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (75 commits)
Ethernet driver for EISA only SNI RM200/RM400 machines
Extract chip specific code out of lasi_82596.c
ehea: Whitespace cleanup
pasemi_mac: Fix TX interrupt threshold
spidernet: Replace literal with const
r8169: perform RX config change after mac filtering
r8169: mac address change support
r8169: display some extra debug information during startup
r8169: add endianess annotations to [RT]xDesc
r8169: align the IP header when there is no DMA constraint
r8169: add bit description for the TxPoll register
r8169: cleanup
r8169: remove the media option
r8169: small 8101 comment
r8169: confusion between hardware and IP header alignment
r8169: merge with version 8.001.00 of Realtek's r8168 driver
r8169: merge with version 6.001.00 of Realtek's r8169 driver
r8169: prettify mac_version
r8169: populate the hw_start handler for the 8110
r8169: populate the hw_start handler for the 8168
...
The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
- The CPU must not touch the buffer after it was DMA-mapped.
- The size argument of dma_unmap_single(...page_table...) was bogus.
- Move a comment closer to the code to which it refers to.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Add rudimentary check for the case that the page table overflows due to
merging of s/g elements by the IOMMU. This would have lead to
overwriting of arbitrary memory.
After this change I expect that an offending command will be
unsuccessfully retried until the scsi_device is taken offline by SCSI
core. It's a border case and not worth to implement a recovery
strategy.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>
Replace a cast with a container_of(). As long as nobody reorders the
structure elements, they do the same thing, but container_of() is more
readable.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added complete_command_orb)
Acked-by: Kristian Høgsberg <krh@redhat.com>
Daniel Drake
Michal Schmidt
Stephen Hemminger
Michael Wu
Holger Schurig
Robert P. J. Day
Linus Torvalds
Stefan Richter
Jay Fenlason