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  1. 02 8月, 2008 6 次提交
  3. 30 7月, 2008 1 次提交
    • J
      Ath5k: flush work · 274c7c36
      由 Jiri Slaby 提交于 
      Make sure that the irq is not in progress after stop. This means
two things:
- ensure the intr setting register is set by flushing posted values
- call synchronize_irq() after that

Also flush stop tx write, inform callers of the tx stop about still
pending transfers (unsuccessful stop) and finally don't wait another
3ms in ath5k_rx_stop, since ath5k_hw_stop_rx_dma ensures transfer to
be finished.

Make sure all writes will be ordered in respect to locks by mmiowb().
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      274c7c36
  5. 27 6月, 2008 1 次提交
  7. 21 5月, 2008 1 次提交
    • B
      ath5k: Fix loop variable initializations · 89fd2e28
      由 Bob Copeland 提交于 
      In ath5k_tasklet_rx, both status structures 'rxs' and 'rs' are
initialized at the top of the tasklet, but not within the loop.
If the loop is executed multiple times in the tasklet then the
variables may see changes from previous packets.

For TKIP, this results in 'Invalid Michael MIC' errors if two packets
are processed in the tasklet: rxs.flag gets set to RX_DECRYPTED by
mac80211 when it decrypts the first encrypted packet.  The subsequent
packet will have RX_DECRYPTED set upon entry to mac80211, so mac80211
will not try to decrypt it.

We currently initialize all but two fields in the structures, so fix
the other two.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      89fd2e28
  9. 15 5月, 2008 1 次提交
    • B
      ath5k: Fix loop variable initializations · d6894b5b
      由 Bob Copeland 提交于 
      In ath5k_tasklet_rx, both status structures 'rxs' and 'rs' are
initialized at the top of the tasklet, but not within the loop.
If the loop is executed multiple times in the tasklet then the
variables may see changes from previous packets.

For TKIP, this results in 'Invalid Michael MIC' errors if two packets
are processed in the tasklet: rxs.flag gets set to RX_DECRYPTED by
mac80211 when it decrypts the first encrypted packet.  The subsequent
packet will have RX_DECRYPTED set upon entry to mac80211, so mac80211
will not try to decrypt it.

We currently initialize all but two fields in the structures, so fix
the other two.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      d6894b5b
  11. 24 4月, 2008 1 次提交
  13. 17 4月, 2008 2 次提交
  15. 14 3月, 2008 2 次提交
  17. 08 3月, 2008 6 次提交
  19. 01 3月, 2008 2 次提交
  21. 21 2月, 2008 1 次提交
  23. 16 2月, 2008 1 次提交
    • B
      ath5k: correct padding in tx descriptors · 281c56dd
      由 Bruno Randolf 提交于 
      when setting up the tx descriptors for the hardware we must account for any
padding between the header and the data we might have added previously. frame
len is the length of the frame in the air (including FCS but no padding) and
buffer len is the length of the buffer (including padding, but without FCS).

changing the way ah_setup_tx_desc is called: now excluding the FCS, since it's
easier to add that in the function where we need it.

before this fix we sent trailing zero bytes after the packet (because frame len
included the padding) which was not a big problem without WEP, but with WEP
this resultes in a wrong WEP checksum and the packet is discarded - which is
how i noticed at all ;)

an easy way to run into header padding problems, btw, is to connect to a QoS
(WME) enabled access point (eg. madwifi) - QoS data frames are 2 byte longer
and will require padding.

this patch applies on top of luis latest patch series from 04.02.2008.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/hw.c:        Changes-licensed-under: ISC
Signed-off-by: NBruno Randolf <bruno@thinktube.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      281c56dd
  25. 29 1月, 2008 4 次提交