Specific tx rates with ath10k
Ath10k firmware gives ability to set specific fixed rate-control rates for beacons/mgt, multicast, broadcast, and regular traffic.
The ath10k driver only sets regular traffic currently.
I had previously hacked my firmware to just set all rate types when ath10k driver requested to set the rate.
But, that is not what my customer needs.
So, I am now planning to add some debugfs entries to allow users to set beacon/mgt, multicast and broadcast rates individually (I don't have time or interest right now to try patching things top to bottom to try to get this feature into mac80211 stack or 'iw').
My question is, for when user just runs a command like this:
./local/sbin/iw dev vap1 set bitrates legacy-2.4 6 ht-mcs-2.4
What is the desired behaviour?
Set all rates (beacons/mgt, bcast, multicast, regular) to the same fixed speed, or just a certain subset of these traffic types?
I can make my firmware do whatever combination is required, and then users can over-ride the values by using debugfs.....
As a note, ath10k firmware will NOT send beacons at HT speeds, so if you fix an HT rate, then firmware will ignore that for the beacons/mgt ratecontrol type.
Thanks,
Ben
Signature · 2 lines
Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com
Hi.
You can change to fixed bitrate for all types of traffic for 802.11g/a modes, even on ath10k:
for 2.4 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-2.4 54
for 5 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-5 54
Setting fixed speed for HT and VHT modes currently only takes effect on unicast traffic, I would like that this could be applied to other types of traffic in a future ath9k/ath10k driver.
Quoting Ben Greear <[email protected]>:
Quoted 34 lines
Ath10k firmware gives ability to set specific fixed rate-control rates for beacons/mgt, multicast, broadcast, and regular traffic.
The ath10k driver only sets regular traffic currently.
I had previously hacked my firmware to just set all rate types when ath10k driver requested to set the rate.
But, that is not what my customer needs.
So, I am now planning to add some debugfs entries to allow users to set beacon/mgt, multicast and broadcast rates individually (I don't have time or interest right now to try patching things top to bottom to try to get this feature into mac80211 stack or 'iw').
My question is, for when user just runs a command like this:
./local/sbin/iw dev vap1 set bitrates legacy-2.4 6 ht-mcs-2.4
What is the desired behaviour?
Set all rates (beacons/mgt, bcast, multicast, regular) to the same fixed speed, or just a certain subset of these traffic types?
I can make my firmware do whatever combination is required, and then users can over-ride the values by using debugfs.....
As a note, ath10k firmware will NOT send beacons at HT speeds, so if you fix an HT rate, then firmware will ignore that for the beacons/mgt ratecontrol type.
Thanks,
Ben
Quoted 9 lines
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Candela Technologies Inc http://www.candelatech.com--
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Quoted 5 lines · Mário Lopes
Hi.
You can change to fixed bitrate for all types of traffic for 802.11g/a modes, even on ath10k:
for 2.4 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-2.4 54
for 5 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-5 54
Have you actually tried this with an ath10k AP and seen that beacons and broadcast go out at 54Mbps?
If so, please let me know what firmware version you are using.
Quoted 2 lines
Setting fixed speed for HT and VHT modes currently only takes effect on unicast traffic, I would like that this could be applied to other types of traffic in a future ath9k/ath10k driver.
I know beacons won't go out at HT speeds, at least not with the logic that I tried in the firmware...but I have not checked to see if my patch allows setting broadcast to HT speeds....
Thanks,
Ben
Quoted 53 lines
Quoting Ben Greear <[email protected]>:
Quoted 27 lines
Ath10k firmware gives ability to set specific fixed rate-control rates for beacons/mgt, multicast, broadcast, and regular traffic.
The ath10k driver only sets regular traffic currently.
I had previously hacked my firmware to just set all rate types when ath10k driver requested to set the rate.
But, that is not what my customer needs.
So, I am now planning to add some debugfs entries to allow users to set beacon/mgt, multicast and broadcast rates individually (I don't have time or interest right now to try patching things top to bottom to try to get this feature into mac80211 stack or 'iw').
My question is, for when user just runs a command like this:
./local/sbin/iw dev vap1 set bitrates legacy-2.4 6 ht-mcs-2.4
What is the desired behaviour?
Set all rates (beacons/mgt, bcast, multicast, regular) to the same fixed speed, or just a certain subset of these traffic types?
I can make my firmware do whatever combination is required, and then users can over-ride the values by using debugfs.....
Quoted 16 lines
As a note, ath10k firmware will NOT send beacons at HT speeds, so if you fix an HT rate, then firmware will ignore that for the beacons/mgt ratecontrol type.
Thanks,
BenSignature · 7 lines
Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html----------------------------------------------------------------
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Signature · 2 lines
Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com
Not on that specific setup. I'm using OpenWRT (ath9k & ath10k) and Ubuntu 14 (ath9k only).
There are some equipment that send broadcast traffic as unicast in order to reduce airtime. I don't know which, just remembered about that on some published papers.
I would be very usefull to transmit broadcast traffic as real broadcast traffic at HT/VHT speeds in order to reduce air time, which speed is based on last sent unicast frame speed or build a pessimist rate adaptation algoritm with a sort of link with rate adaptation algoritm used for unicast traffic.
Quoting Ben Greear <[email protected]>:
Quoted 72 lines · Mário Lopes
Quoted 5 lines
Hi.
You can change to fixed bitrate for all types of traffic for 802.11g/a modes, even on ath10k:
for 2.4 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-2.4 54
for 5 GHz @ 54 Mbit/s - iw dev wiface set bitrates legacy-5 54Have you actually tried this with an ath10k AP and seen that beacons and broadcast go out at 54Mbps?
If so, please let me know what firmware version you are using.
Quoted 2 lines
Setting fixed speed for HT and VHT modes currently only takes effect on unicast traffic, I would like that this could be applied to other types of traffic in a future ath9k/ath10k driver.
I know beacons won't go out at HT speeds, at least not with the logic that I tried in the firmware...but I have not checked to see if my patch allows setting broadcast to HT speeds....
Thanks,
BenQuoted 50 lines
Quoting Ben Greear <[email protected]>:
Quoted 43 lines
Ath10k firmware gives ability to set specific fixed rate-control rates for beacons/mgt, multicast, broadcast, and regular traffic.
The ath10k driver only sets regular traffic currently.
I had previously hacked my firmware to just set all rate types when ath10k driver requested to set the rate.
But, that is not what my customer needs.
So, I am now planning to add some debugfs entries to allow users to set beacon/mgt, multicast and broadcast rates individually (I don't have time or interest right now to try patching things top to bottom to try to get this feature into mac80211 stack or 'iw').
My question is, for when user just runs a command like this:
./local/sbin/iw dev vap1 set bitrates legacy-2.4 6 ht-mcs-2.4
What is the desired behaviour?
Set all rates (beacons/mgt, bcast, multicast, regular) to the same fixed speed, or just a certain subset of these traffic types?
I can make my firmware do whatever combination is required, and then users can over-ride the values by using debugfs.....
As a note, ath10k firmware will NOT send beacons at HT speeds, so if you fix an HT rate, then firmware will ignore that for the beacons/mgt ratecontrol type.
Thanks,
Ben--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com--
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Quoted 9 lines
Quoted 3 lines
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Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com
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