Since it cost only a few bucks and I could have same-day delivery I bought a Intel 82575EB based card.
This time it works ! here is the output: pci1 at ppb0 bus 1 em0 at pci1 dev 0 function 0 "Intel 82575EB" rev 0x01: msi, address 00:1b:21:23:08:0b em1 at pci1 dev 0 function 1 "Intel 82575EB" rev 0x01: msi, address 00:1b:21:23:08:0a # pcidump -v Domain /dev/pci0: 0:0:0: Marvell ARMADA 7K/8K Root Complex 0x0000: Vendor ID: 11ab, Product ID: 0110 0x0004: Command: 0007, Status: 0010 0x0008: Class: 06 Bridge, Subclass: 04 PCI, Interface: 00, Revision: 00 0x000c: BIST: 00, Header Type: 01, Latency Timer: 00, Cache Line Size: 00 0x0010: BAR mem 64bit addr: 0x0000000000000000/0x00100000 0x0018: Primary Bus: 0, Secondary Bus: 1, Subordinate Bus: 31, Secondary Latency Timer: 00 0x001c: I/O Base: 01, I/O Limit: f1, Secondary Status: 2000 0x0020: Memory Base: c000, Memory Limit: dff0 0x0024: Prefetch Memory Base: fff1, Prefetch Memory Limit: 0001 0x0028: Prefetch Memory Base Upper 32 Bits: 00000000 0x002c: Prefetch Memory Limit Upper 32 Bits: 00000000 0x0030: I/O Base Upper 16 Bits: 0000, I/O Limit Upper 16 Bits: 0000 0x0038: Expansion ROM Base Address: 00000000 0x003c: Interrupt Pin: 01, Line: ff, Bridge Control: 0000 0x0040: Capability 0x01: Power Management State: D0 0x0050: Capability 0x05: Message Signalled Interrupts (MSI) Enabled: no 0x0070: Capability 0x10: PCI Express Link Speed: 2.5 / 8.0 GT/s, Link Width: x1 / x4 0x0100: Enhanced Capability 0x01: Advanced Error Reporting 0x0158: Enhanced Capability 0x19: Secondary PCIe Capability 0x01b8: Enhanced Capability 0x17: TPH Requester 0x024c: Enhanced Capability 0x1e: L1 PM 0x00b0: Capability 0x11: Extended Message Signalled Interrupts (MSI-X) Enabled: no; table size 1 (BAR 0:0) 1:0:0: Intel 82575EB 0x0000: Vendor ID: 8086, Product ID: 10a7 0x0004: Command: 0006, Status: 0010 0x0008: Class: 02 Network, Subclass: 00 Ethernet, Interface: 00, Revision: 01 0x000c: BIST: 00, Header Type: 80, Latency Timer: 00, Cache Line Size: 10 0x0010: BAR mem 32bit addr: 0xc0000000/0x00020000 0x0014: BAR mem 32bit addr: 0x00000000/0x00100000 0x0018: BAR empty (00000000) 0x001c: BAR mem 32bit addr: 0x00000000/0x00004000 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 8086 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 01 Line: 00 Min Gnt: 00 Max Lat: 00 0x0040: Capability 0x01: Power Management State: D0 0x0050: Capability 0x05: Message Signalled Interrupts (MSI) Enabled: yes 0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X) Enabled: no; table size 20 (BAR 3:0) 0x00a0: Capability 0x10: PCI Express Link Speed: 2.5 / 2.5 GT/s, Link Width: x1 / x4 0x0100: Enhanced Capability 0x01: Advanced Error Reporting 0x0140: Enhanced Capability 0x03: Device Serial Number 1:0:1: Intel 82575EB 0x0000: Vendor ID: 8086, Product ID: 10a7 0x0004: Command: 0006, Status: 0010 0x0008: Class: 02 Network, Subclass: 00 Ethernet, Interface: 00, Revision: 01 0x000c: BIST: 00, Header Type: 80, Latency Timer: 00, Cache Line Size: 10 0x0010: BAR mem 32bit addr: 0xc0020000/0x00020000 0x0014: BAR mem 32bit addr: 0x00000000/0x00100000 0x0018: BAR empty (00000000) 0x001c: BAR mem 32bit addr: 0x00000000/0x00004000 0x0020: BAR empty (00000000) 0x0024: BAR empty (00000000) 0x0028: Cardbus CIS: 00000000 0x002c: Subsystem Vendor ID: 8086 Product ID: 0000 0x0030: Expansion ROM Base Address: 00000000 0x0038: 00000000 0x003c: Interrupt Pin: 02 Line: 00 Min Gnt: 00 Max Lat: 00 0x0040: Capability 0x01: Power Management State: D0 0x0050: Capability 0x05: Message Signalled Interrupts (MSI) Enabled: yes 0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X) Enabled: no; table size 5 (BAR 3:0) 0x00a0: Capability 0x10: PCI Express Link Speed: 2.5 / 2.5 GT/s, Link Width: x1 / x4 0x0100: Enhanced Capability 0x01: Advanced Error Reporting 0x0140: Enhanced Capability 0x03: Device Serial Number # pcidump -x Domain /dev/pci0: 0:0:0: Marvell ARMADA 7K/8K Root Complex 0x0000: 011011ab 00100007 06040000 00010000 0x0010: 00000004 00000000 001f0100 2000f101 0x0020: dff0c000 0001fff1 00000000 00000000 0x0030: 00000000 00000040 00000000 000001ff 1:0:0: Intel 82575EB 0x0000: 10a78086 00100006 02000001 00800010 0x0010: c0000000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00008086 0x0030: 00000000 00000040 00000000 00000100 1:0:1: Intel 82575EB 0x0000: 10a78086 00100006 02000001 00800010 0x0010: c0020000 00000000 00000000 00000000 0x0020: 00000000 00000000 00000000 00008086 0x0030: 00000000 00000040 00000000 00000200 -- Sent from: http://openbsd-archive.7691.n7.nabble.com/openbsd-port-arm-f206279.html