linux.git/drivers/net/wireless/rt2x00/rt2x00queue.h, branch v2.6.36 Linux kernel source tree rt2x00: Implement watchdog monitoring 2010-07-12T20:05:34+00:00 Ivo van Doorn ivdoorn@gmail.com 2010-07-11T10:25:46+00:00 c965c74bbc650e5466d2f3e32bd28112ebcdd00c Implement watchdog monitoring for USB devices (PCI support can be added later). This will determine if URBs being uploaded to the hardware are actually returning. Both rt2500usb and rt2800usb have shown that URBs being uploaded can remain hanging without being released by the hardware. By using this watchdog, a queue can be reset when this occurs. For rt2800usb it has been tested that the connection is preserved even though this interruption. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
Implement watchdog monitoring for USB devices (PCI support can
be added later). This will determine if URBs being uploaded to
the hardware are actually returning. Both rt2500usb and rt2800usb
have shown that URBs being uploaded can remain hanging without
being released by the hardware.
By using this watchdog, a queue can be reset when this occurs.
For rt2800usb it has been tested that the connection is preserved
even though this interruption.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: clarify meaning of txdone flags 2010-06-15T20:00:49+00:00 Helmut Schaa helmut.schaa@googlemail.com 2010-06-14T20:08:30+00:00 46678b197a4a61f9c3701fb346b93acbf2ea9c61 Update the documentation of the available txdone flags to better express how they should be used. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
Update the documentation of the available txdone flags to better express
how they should be used.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: In debugfs frame dumping allow the TX descriptor to be part of the skb. 2010-05-12T20:50:52+00:00 Gertjan van Wingerde gwingerde@gmail.com 2010-05-11T21:51:43+00:00 fd76f148ebc67d662f71f00128c8ddb0538168c0 Preparation for futher cleanups in the area of properly maintaining the skb data without fiddling with the skb->data pointer. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
Preparation for futher cleanups in the area of properly maintaining the skb
data without fiddling with the skb->data pointer.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: rt2800: use correct txop value in tx descriptor 2010-05-07T18:57:21+00:00 Helmut Schaa helmut.schaa@googlemail.com 2010-05-07T09:03:08+00:00 1affa091975e47d50ce6a88e9b1abfe717c2fe27 rt2800 devices use a different enumeration to specify what IFS values should be used on frame transmission compared to the other rt2x00 devices. Hence, create a new enum called txop that contains the valid values. Furthermore use the appropriate txop values as found in the ralink drivers: - TXOP_BACKOFF for management frames - TXOP_SIFS for subsequent fragments in a burst - TXOP_HTTXOP for all data frames Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
rt2800 devices use a different enumeration to specify what IFS values should
be used on frame transmission compared to the other rt2x00 devices. Hence,
create a new enum called txop that contains the valid values.

Furthermore use the appropriate txop values as found in the ralink drivers:
- TXOP_BACKOFF for management frames
- TXOP_SIFS for subsequent fragments in a burst
- TXOP_HTTXOP for all data frames

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: Register frame length in TX entry descriptor instead of L2PAD. 2010-05-04T17:24:23+00:00 Gertjan van Wingerde gwingerde@gmail.com 2010-05-03T20:43:05+00:00 df624ca5413d84b3082246de384823fbe8fed6e4 And use it consistently in the chipset drivers. Preparation for further clean ups. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
And use it consistently in the chipset drivers.
Preparation for further clean ups.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: remove now unused noise field from struct rxdone_entry_desc 2010-05-03T18:51:46+00:00 John W. Linville linville@tuxdriver.com 2010-04-28T21:00:52+00:00 91639c76bfd9d27ac54a3c521a2559d02f409ebe Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> 
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
rt2x00: Remove SKBDESC_L2_PADDED flag. 2009-12-21T23:56:32+00:00 Gertjan van Wingerde gwingerde@gmail.com 2009-12-04T22:47:02+00:00 354e39dbb19f29ef28a9c2db9e55ff2a7435b35a With the improved L2 padding code, this flag is no longer necessary, as the rt2x00queue_remove_l2pad is capable of detecting by itself if L2 padding is applied. For received frames the RX descriptor flag is still being checked. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <ivdoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
With the improved L2 padding code, this flag is no longer necessary, as the
rt2x00queue_remove_l2pad is capable of detecting by itself if L2 padding is
applied.
For received frames the RX descriptor flag is still being checked.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <ivdoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211: request TX status where needed 2009-11-19T16:08:56+00:00 Johannes Berg johannes@sipsolutions.net 2009-11-19T00:08:30+00:00 7351c6bd482712e5e3ec9dffc547de0e0863efb0 Right now all frames mac80211 hands to the driver have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set to request TX status. This isn't really necessary, only the injected frames need TX status (the latter for hostapd) so move setting this flag. The rate control algorithms also need TX status, but they don't require it. Also, rt2x00 uses that bit for its own purposes and seems to require it being set for all frames, but that can be fixed in rt2x00. This doesn't really change anything for any drivers but in the future drivers using hw-rate control may opt to not report TX status for frames that don't have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> [rt2x00 bits] Signed-off-by: John W. Linville <linville@tuxdriver.com> 
Right now all frames mac80211 hands to the driver
have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set to
request TX status. This isn't really necessary, only
the injected frames need TX status (the latter for
hostapd) so move setting this flag.

The rate control algorithms also need TX status, but
they don't require it.

Also, rt2x00 uses that bit for its own purposes and
seems to require it being set for all frames, but
that can be fixed in rt2x00.

This doesn't really change anything for any drivers
but in the future drivers using hw-rate control may
opt to not report TX status for frames that don't
have the IEEE80211_TX_CTL_REQ_TX_STATUS flag set.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com> [rt2x00 bits]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: Update copyright statements. 2009-11-11T22:09:17+00:00 Gertjan van Wingerde gwingerde@gmail.com 2009-11-08T15:39:55+00:00 9c9a0d145fee73b5e821bb460732ac2a66c680b3 As mentioned on the linux-wireless mailing list, the current copyright statements in the rt2x00 are meaningless, as the rt2x00 project is not even a formal legal entity. Therefore it is better to replace the existing copyright statements with copyright statements for the people that actually wrote the code. Note: Updated to the best of my knowledge with respect to who contributed considerable amounts of code. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
As mentioned on the linux-wireless mailing list, the current copyright
statements in the rt2x00 are meaningless, as the rt2x00 project is
not even a formal legal entity. Therefore it is better to replace
the existing copyright statements with copyright statements for the
people that actually wrote the code.

Note: Updated to the best of my knowledge with respect to who
contributed considerable amounts of code.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: Add support for retry rates 2009-08-20T15:36:02+00:00 Benoit PAPILLAULT benoit.papillault@free.fr 2009-08-17T16:56:10+00:00 92ed48e5230e8f5906dda0cc31715b3b7e3fe303 rt2800pci can handle different retry rates, it will always step 1 rate down after a failed transmission so creating the retry rate list for mac80211 is quite simple. Signed-off-by: Benoit PAPILLAULT <benoit.papillault@free.fr> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 
rt2800pci can handle different retry rates,
it will always step 1 rate down after a failed
transmission so creating the retry rate list
for mac80211 is quite simple.

Signed-off-by: Benoit PAPILLAULT <benoit.papillault@free.fr>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>