Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

How to request multiply MSI interrupts?

Hi !!! Developing a network device driver on Arria2 GX (Avalon-ST). Is it possible to set a vector of 8 MSI interrupts , if the design supports only MSI interrupts, not MSI - X? From the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Advice: Output based on one msi 


# lspci -d 1204:ec30 -v -xxx
04:00.0 Non-VGA unclassified device: Lattice Semiconductor Corporation Device ec30
        Subsystem: Lattice Semiconductor Corporation Device 3030
        Physical Slot: 3
        Flags: bus master, fast devsel, latency 0, IRQ 30
        Memory at d0440000 (32-bit, non-prefetchable) 
        Memory at d0400000 (32-bit, non-prefetchable) 
        Capabilities:  Power Management version 3
        Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities:  Express Endpoint, MSI 00
        Capabilities:  Device Serial Number 00-00-00-00-00-00-00-00
00: 04 12 30 ec 07 04 10 00 00 00 00 00 10 00 00 00
10: 00 00 44 d0 00 00 40 d0 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 04 12 30 30
30: 00 00 00 00 50 00 00 00 00 00 00 00 07 01 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 70 03 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 05 90 81 00 0c 10 e0 fe 00 00 00 00 a9 41 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 10 00 01 00 00 80 00 00 00 00 00 00 11 74 00 00
a0: 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00