- 28 Nov, 2011 40 commits
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Nick Kossifidis authored
Use usleep_range where possible to reduce busy waits Signed-off-by:
Nick Kossifidis <mickflemm@gmail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Nick Kossifidis authored
Noise floor calibration does not interfere with traffic and should run more often as part of our "short calibration". The full calibration is not the noise floor calibration but the AGC + Gain_F (on RF5111 and RF5112) calibration and should run less often because it does interfere with traffic. So Short calibration -> I/Q & NF Calibration Long calibration -> Short + AGC + Gain_F This patch was for some time on my pub/ dir on www.kernel.org and has been tested by a few people and me. I think it's O.K. to go in. I also changed ah_calibration to ah_iq_cal_needed to make more sense. v2 Use a workqueue instead of a tasklet for calibration Signed-off-by:
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Nick Kossifidis authored
No functional changes, just a few comments/documentation/cleanup Signed-off-by:
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Nick Kossifidis authored
Add TXNOFRM to INT_TX_ALL since it's a TX interrupt too. Signed-off-by:
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Nick Kossifidis authored
Since card has 12 tx queues and we want to keep track of the interrupts per queue we can't fit all these interrupt bits on a single register. So we have 5 registers, the primary interrupt status register (PISR) and the 4 secondary interupt status registers (SISRs). In order to be able to read them all at once (atomic operation) Atheros introduced the Read-And-Clear registers to make things easier. So when reading RAC_PISR register, hw does a read on PISR and all SISRs, returns the value of PISR, copies all SISR values to their shadow copies (RAC_SISRx) and clears PISR and SISRs. This saves us from reading PISR/SISRs in a sequence. So far we 've used this approach and MadWiFi/Windows driver etc also used it for years. It turns out this operation is not atomic after all (at least not on all cards) That means it's possible to loose some interrupts because they came after the copy step and hw cleared them on the clean step ! That's probably the reason we got missed beacons, got stuck queues etc and couldn't figure out what was going on. With this patch we switch from RaC operation to an alternative method (that makes more sense IMHO anyway, I just chose to be on the safe side so far). Instead of reading RAC registers, we read the normal PISR/SISR registers and clear any bits we got by writing them back on the register. This will clear only the bits we got on our read step and leave any new bits unaffected (at least that's what docs say). So if any new interrupts come up we won't miss it. I've tested this with an AR5213 and an AR2425 and it seems O.K. Many thanks to Adrian Chadd for debuging this and reviewing the patch ! v2: Make sure we don't clear PISR bits that map to SISR generated interrupts (added a comment on the code for this) Signed-off-by:
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Johannes Berg authored
There's little point in this config symbol, if tracing is disabled the overhead is negligible and if you think it's too bad you can always turn off tracing completely. Also remove the part where we don't have sparse check the tracing code -- it seems that it can now deal with it (or the code changed). Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Thomas Pedersen authored
Lose about two levels of unnecessary indentation. Signed-off-by:
Thomas Pedersen <thomas@cozybit.com> Signed-off-by:
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Thomas Pedersen authored
We used to initiate a path discovery when receiving a frame for which there is no forwarding information. To cut down on PREQ spam, just send a (gated) PERR in response. Also separate path discovery logic from nexthop querying. This patch means we no longer queue frames when forwarding, so kill the PERR TX stuff in discard_frame(). Signed-off-by:
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Thomas Pedersen authored
As per 802.11mb 13.9.11.3 Signed-off-by:
Javier Cardona <javier@cozybit.com> Signed-off-by:
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Thomas Pedersen authored
We can't rely on ieee80211_select_queue() to do its job at this point since the skb->protocol is not yet known. Instead, factor out and reuse the queue mapping logic for injected frames. Also, to mitigate congestion, forwarded frames should be dropped if the outgoing queue was stopped. This was not correctly implemented as we were not checking the right queue. Furthermore, we were dropping frames that had arrived to their destination if that queue was stopped. Signed-off-by:
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Thomas Pedersen authored
HWMP originator and target addresses were switched on the air but also on reception, which is why path selection still worked. Signed-off-by:
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Thomas Pedersen authored
Don't write the TA until next hop is actually known, since we might need the original TA for sending a PERR. Previously we would send a PERR to ourself if path resolution for a forwarded frame failed. Signed-off-by:
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Chun-Yeow Yeoh authored
Signed-off-by:
Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by:
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Veli-Pekka Peltola authored
Signed-off-by:
Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com> Signed-off-by:
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Ben Greear authored
Signed-off-by:
Ben Greear <greearb@candelatech.com> Signed-off-by:
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Lars-Peter Clausen authored
In ancient times it was necessary to manually initialize the bus field of an spi_driver to spi_bus_type. These days this is done in spi_driver_register(), so we can drop the manual assignment. The patch was generated using the following coccinelle semantic patch: // <smpl> @@ identifier _driver; @@ struct spi_driver _driver = { .driver = { - .bus = &spi_bus_type, }, }; // </smpl> Signed-off-by:Lars-Peter Clausen <lars@metafoo.de> Cc: Dan Williams <dcbw@redhat.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: Luciano Coelho <coelho@ti.com> Cc: libertas-dev@lists.infradead.org Cc: linux-wireless@vger.kernel.org Acked-by:
Luciano Coelho <coelho@ti.com> Signed-off-by:
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Eliad Peller authored
It doesn't have any actual effect here, but we should skb_put() *before* copying the data. Signed-off-by:
Eliad Peller <eliad@wizery.com> Signed-off-by:
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Johannes Berg authored
Emmanuel reported that my previous patches to enable handing all fragments to drivers at once triggered the warning that the SKB queue wasn't empty. This is happening when we actually queue up some frames and don't hand them to the driver (queues are stopped). The reason for it is that my code that splices the frame(s) over to the pending queue didn't re-init the local queue, so skb_queue_empty() was false. Fix this by using the _init versions of the splicing. Also, convert the warning to WARN_ON_ONCE. Reported-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Helmut Schaa authored
Previously BlockAcks were always dropped by the rt2800 hardware while BlockAckReqs were always accepted. However, both are only useful on monitor interfaces at the moment and both are control frames. So pass them up when mac80211 sets FIF_CONTROL. Signed-off-by:
Helmut Schaa <helmut.schaa@googlemail.com> Acked-by:
Gertjan van Wingerde <gwingerde@gmail.com> Acked-by:
Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by:
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Larry Finger authored
The recent discussion regarding an incorrect return of IRQ_HANDLED from rt2800pci caused me to look at this PCI interrupt routine. I discovered that changes were needed. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Felix Fietkau authored
This fixes frequent WARN_ONs when using AP VLAN + aggregation, as these vifs are virtual and not registered with drivers. Use sta_info_get_bss instead of sta_info_get in aggregation callbacks, so that these callbacks can find the station entry when called with the AP vif. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Nikolay Martynov authored
Add additional debug logging of initiator and reason when rx aggregation session is stopped Signed-off-by:
Nikolay Martynov <mar.kolya@gmail.com> Signed-off-by:
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Nikolay Martynov authored
Use WLAN_BACK_RECIPIENT instead of hardcoded 0 for clarity Signed-off-by:
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Nikolay Martynov authored
Currently tx aggregation is not being timed out even if timeout is specified when aggregation is opened. Tx tid stays active until delba arrives from recipient (i.e. recipient times out tid when it is inactive). The problem with this approach is that delba can get lost in the air and tx tid will stay perpetually opened on the originator while closed on recipient thus all data sent via this tid will be lost. This patch implements tx tid timeouting in way very similar to rx tid timeouting. Signed-off-by:
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Franky Lin authored
Change parameter to device pointer for bus layer interface function brcmf_sdbrcm_bus_stop. This is part of the fullmac bus interface refactoring. Reviewed-by:
Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by:
Arend van Spriel <arend@broadcom.com> Signed-off-by:
Franky Lin <frankyl@broadcom.com> Signed-off-by:
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Franky Lin authored
brcmf_bus_get_device is no longer necessary. Use dongle device pointer saved in brcmf_pub directly. This is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
Change parameter to device pointer for bus layer interface function brcmf_sdbrcm_bus_init. This is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
Change parameter to device pointer for bus layer interface function brcmf_sdbrcm_bus_txdata. This is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
Change paramter to device pointer for bus layer interface function brcmf_sdbrcm_bus_txctl. This is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
brcmf_sdbrcm_bus_rxctl acts as an interface function of bus layer. Change parameter from struct brcmf_sdio to device pointer in order to provide a more compatible interface for different bus layers. This is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
structure brcmf_pub contains context for generic layer and should not be used in brcmf_sdbrcm_bus_watchdog. This patch is part of fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
busstate keeps track of the bus (USB/SDIO) status and is used by both generic layer and bus layer. Move it to brcmf_bus helps to clean up the interface. This patch is part of fullmac bus interface refactoring. Reviewed-by:
Alwin Beukers <alwin@broadcom.com> Reviewed-by:
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Franky Lin authored
struct brcmf_bus will contain function porinter, bus specific private structure pointer and interface context of generic layer and bus layer. It will be the only shared structure between generic and bus layer. This patch is part of fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
Rename sdio bus structure brcmf_bus to brcmf_sdio for preparation of USB bus support. This patch is part of the fullmac bus interface refactoring. Reviewed-by:
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Franky Lin authored
bus_no, slot, func and bustype are no longer needed by brcmf_sdbrcm_probe. This patch removes them. Reviewed-by:
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Franky Lin authored
brcmf_c_init only init brcmf_msg_level used for debug. It's no longer needed as brcmf_msg_level doesn't cause trouble to multiple instances. Reviewed-by:
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Franky Lin authored
This patch is part of the fullmac bus interface refactoring series. It moves the module init/exit code to bus layer. Reviewed-by:
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Franky Lin authored
A new feature in the dongle firmware requires a handshake during firmware intialization. The request is sent in event packets which the host driver is not able to handle before any net device registered. Discard those packets as the context for handling it is missing. The initialization handler will be added as part of feature support code in the future. Signed-off-by:
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Arend van Spriel authored
The wait queue request_packet_wait was used in request_chain function and for sake of consistency it has been renamed to request_chain_wait. Reviewed-by:
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Arend van Spriel authored
The check for alignment is not valid anymore and can be removed. The function is collapsed with brcmf_sdioh_request_packet() as a consequence because it did not add much functionality any longer. Reviewed-by:
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