On 1/24/24 5:06 AM, James Prestwood wrote:
Hi,
I recently added support to ath10k, for the QCA6174, to receive
multicast action frames in order to support DPP. I'm trying to do this
for the ath11k QCNFA765/WCN6855. I took the same approach as ath10k
which was actually quite simple but I'm unable to see any multicast
frames coming over even when I enable RX/DATA debugging.
What I've done so far is:
- Add FIF_MCAST_ACTION to the supported filters list
- Created/started a monitor vdev from within
ath11k_mac_op_configure_filter()
ath11k_mac_monitor_vdev_create(ar);
ath11k_mac_monitor_start(ar);
- Also tried adding
ath11k_mac_config_mon_status_default(ar, true);
I can successfully create/start the monitor vdev. I see now as I'm
writing this email that my specific hardware does not support monitor
mode outright... Is this a dead end or is there hope with purely
driver changes? or is it some filtering at the firmware level
preventing this?
I was able to finally see my broadcast frame after some additional
testing. It seems the driver/firmware/something gets a bit hung up when
I attempt to put it in monitor mode. It will start printing these
messages for about a minute:
[ 51.093034] ath11k_pci 0000:00:06.0: data dest_rx: new ppdu_id a1a2
!= status ppdu_id a1a1 dest_mon_not_reaped = 650 dest_mon_stuck = 12
[ 51.094461] ath11k_pci 0000:00:06.0: data dest_rx: new ppdu_id a1a3
!= status ppdu_id a1a2 dest_mon_not_reaped = 651 dest_mon_stuck = 12
[ 51.096281] ath11k_pci 0000:00:06.0: data dest_rx: new ppdu_id a1a5
!= status ppdu_id a1a3 dest_mon_not_reaped = 652 dest_mon_stuck = 12
In most cases these ppdu ID's are a one-off from the expected ID which
seemed weird to me. But if I let it sit long enough I all of a sudden
get a ton of "data rx" messages, which is what I would expect if I
enabled a monitor vdev. Once this flurry starts I see the action frame
from my other client, sometimes at least. The firmware generally crashes
after a while so I've still got a ways to go but it seems within the
realm of possibility that this device could receive broadcast action frames?
Hoping for some breadcrumbs to follow here...
Thanks,
James
Thanks,
James
