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  1. 29 12月, 2009 1 次提交
  3. 12 11月, 2009 1 次提交
  5. 31 10月, 2009 1 次提交
  7. 28 10月, 2009 1 次提交
    • B
      zd1211rw: Fix TX status reporting in order to have proper rate control · 7f4013f0
      由 Benoit PAPILLAULT 提交于 
      First, we reduce the number of hardware retries to 0 (ie 2 real retries
for each rate). Next, when we report the retries to mac80211, we always
report a retry count of 1 (it seems to be 2 in fact, but using 2 seems
to lead to wrong performance for some reason). We use a state machine to
determine the real fate of a packet based on the 802.11 ACK and what the
Zydas hardware is saying when a real retry occurs. The real retry rates
are encoded in a static array. It has been tested with both zd1211 and
zd1211b hardware. Of course, since the Zydas hardware is not reporting
retries accurately, we are just doing our best in order to get the best
performance (ie higher throughput).
Signed-off-by: NBenoit PAPILLAULT <benoit.papillault@free.fr>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      7f4013f0
  9. 23 9月, 2009 1 次提交
  11. 21 9月, 2009 1 次提交
  13. 20 8月, 2009 1 次提交
    • J
      mac80211: allow configure_filter callback to sleep · 3ac64bee
      由 Johannes Berg 提交于 
      Over time, a whole bunch of drivers have come up
with their own scheme to delay the configure_filter
operation to a workqueue. To be able to simplify
things, allow configure_filter to sleep, and add
a new prepare_multicast callback that drivers that
need the multicast address list implement. This new
callback must be atomic, but most drivers either
don't care or just calculate a hash which can be
done atomically and then uploaded to the hardware
non-atomically.

A cursory look suggests that at76c50x-usb, ar9170,
mwl8k (which is actually very broken now), rt2x00,
wl1251, wl1271 and zd1211 should make use of this
new capability.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      3ac64bee
  15. 14 8月, 2009 1 次提交
  17. 05 8月, 2009 1 次提交
    • L
      mac80211: redefine usage of the mac80211 workqueue · 42935eca
      由 Luis R. Rodriguez 提交于 
      The mac80211 workqueue exists to enable mac80211 and drivers
to queue their own work on a single threaded workqueue. mac80211
takes care to flush the workqueue during suspend but we never
really had requirements on drivers for how they should use
the workqueue in consideration for suspend.

We extend mac80211 to document how the mac80211 workqueue should
be used, how it should not be used and finally move raw access to
the workqueue to mac80211 only. Drivers and mac80211 use helpers
to queue work onto the mac80211 workqueue:

  * ieee80211_queue_work()
  * ieee80211_queue_delayed_work()

These helpers will now warn if mac80211 already completed its
suspend cycle and someone is trying to queue work. mac80211
flushes the mac80211 workqueue prior to suspend a few times,
but we haven't taken the care to ensure drivers won't add more
work after suspend. To help with this we add a warning when
someone tries to add work and mac80211 already completed the
suspend cycle.

Drivers should ensure they cancel any work or delayed work
in the mac80211 stop() callback.
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      42935eca
  19. 04 8月, 2009 1 次提交
  21. 25 7月, 2009 1 次提交
  23. 11 7月, 2009 2 次提交
  25. 09 7月, 2009 2 次提交
  27. 19 6月, 2009 1 次提交
  29. 21 5月, 2009 1 次提交
  31. 07 5月, 2009 1 次提交
  33. 17 3月, 2009 1 次提交
  35. 06 3月, 2009 1 次提交
  37. 28 2月, 2009 1 次提交
  39. 14 2月, 2009 3 次提交
  41. 12 2月, 2009 2 次提交
  43. 10 2月, 2009 1 次提交
  45. 23 1月, 2009 1 次提交
  47. 09 1月, 2009 1 次提交
  49. 30 12月, 2008 1 次提交
    • J
      drivers/net/usb: use USB API functions rather than constants · f201a8a4
      由 Julia Lawall 提交于 
      This set of patches introduces calls to the following set of functions:

usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)

In some cases, introducing one of these functions is not possible, and it
just replaces an explicit integer value by one of the following constants:

USB_ENDPOINT_XFER_BULK
USB_ENDPOINT_XFER_CONTROL
USB_ENDPOINT_XFER_INT
USB_ENDPOINT_XFER_ISOC

In drivers/net/wireless/zd1211rw/zd_usb.c the code:

(endpoint->bEndpointAddress & USB_TYPE_MASK) == USB_DIR_OUT

is suspicious.  If it is intended to use USB_ENDPOINT_DIR_MASK rather than
USB_TYPE_MASK, then the whole conditional test could be converted to a call
to usb_endpoint_is_bulk_in.

An extract of the semantic patch that makes these changes is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r1@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) ==
- \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ usb_endpoint_xfer_control(epd)

@r5@ struct usb_endpoint_descriptor *epd; @@

- ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) ==
-  \(USB_DIR_IN\|0x80\))
+ usb_endpoint_dir_in(epd)

@inc@
@@

#include <linux/usb.h>

@depends on !inc && (r1||r5)@
@@

+ #include <linux/usb.h>
  #include <linux/usb/...>
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f201a8a4
  51. 05 12月, 2008 1 次提交
    • S
      zd1211rw: use unaligned safe memcmp() in-place of compare_ether_addr() · cde6901b
      由 Shaddy Baddah 提交于 
      Under my 2.6.28-rc6 sparc64, when associating to an AP through my
zd1211rw device, I was seeing kernel log messages like (not exact output):

  Kernel unaligned access at TPC[10129b68] zd_mac_rx+0x144/0x32c [zd1211rw]

For the zd1211rw module, on RX, the 80211 packet will be located after
the PLCP header in the skb data buffer. The PLCP header being 5 bytes
long, the 80211 header will start unaligned from an aligned skb
buffer.

As per Documentation/unaligned-memory-access.txt, we must replace the
not unaligned() safe compare_ether_addr() with memcmp() to protect
architectures that require alignment.
Signed-off-by: NShaddy Baddah <shaddy_baddah@hotmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      cde6901b
  53. 07 11月, 2008 1 次提交
  55. 01 11月, 2008 3 次提交
  57. 28 10月, 2008 1 次提交
  59. 23 9月, 2008 2 次提交
  61. 16 9月, 2008 2 次提交