Hey Neel,
I suspect that the ath0 controller does not support MSI/MSI-x
interrupts. The output of 'pciconf -lvbc' on the host will confirm if
this is the case.
thanks for the hint. The controller should support MSI interrupts.
root@test10:/usr/src/sys # pciconf -lvbc
ath0@pci0:5:0:0: class=0x028000 card=0x30a4168c chip=0x002e168c
rev=0x01 hdr=0x00
vendor = 'Atheros Communications Inc.'
device = 'AR9287 Wireless Network Adapter (PCI-Express)'
class = network
bar [10] = type Memory, range 64, base 0xf7100000, size 65536,
enabled
cap 01[40] = powerspec 3 supports D0 D1 D3 current D0
cap 05[50] = MSI supports 1 message
cap 10[60] = PCI-Express 2 legacy endpoint max data 128(128) link
x1(x1)
speed 2.5(2.5) ASPM L0s/L1(L0s/L1)
ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
ecap 0002[140] = VC 1 max VC0
ecap 0003[160] = Serial 1 001517ffff241412
ecap 0004[170] = Power Budgeting 1
But as I read in https://wiki.freebsd.org/dev/ath_hal%284%29/AR9300, MSI
interrupts are not supported before AR9300 HAL.
So i'll buy an other card and try again.
But it would be a good idea to add the check for supported MSI/MSI-x
interrupts to the https://wiki.freebsd.org/bhyve/pci_passthru .
thanks
richard
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