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SubjectRe: How to active/validate the NPE-B NIC of intel_ixdp465?
bigboy writes:
> Hi,
>
> I have an Intel IXDP465 target with a NPE-B mezzanine card and that
> was supported & validated with linux-2.6.21 + "Intel IXP400 Software
> Access Library". And now the NPE ether net driver moved into the linux
> baseline (drivers/net/arm/ixp4xx_eth.c) so I want to try it without
> Intel's lib but failed. Here is my operations:
>
> Build the zImage with linux-2.6.28, I configure the kernel with
> ixp4xx_defconfig and just change the IXP4XX_ETH to Y.
>
> Build the firmware for NPE-B:
>
> -) download the "Intel(R) IXP400 software - Access Library
> (non-crypto)" to get the head file IxNpeMicrocode.h;
>
> -) download the "Intel IXP400 software - NPE microcode (non-crypto)",
> both 2.4 and 3.0/3.0.1 version, unpack it and copy the head file
> IxNpeMicrocode.h to its source code subdirectory;
>
> -) Edit the head file and comment out those macros for NPE-A and NPE-C
> and just leave the one for NPE-B;
>
> -) Edit the IxNpeMicrocode.c and comment out line 25664, the 8 bytes
> of "END OF IMAGE LIBRARY MARKER".
>
> -) "gcc ixNpeDlImageConverter.c" and get a a.out; run it and get the
> firmware called IxNpeMicrocode.dat.
>
> -) Rename the IxNpeMicrocode.dat to NPE-B and copy it to the NFS
> rootfs of the target in /lib/firmware.
>
>
> There is a PCI E100 NIC and the linux kernel mount NFS rootfs through
> it. The kernel can find two NICs related to NPE, eth1 for NPE-B and
> eth2 for NPE-C. Then, I tried to active the NIC of NPE-B(eth1):
>
> -) "ifconfig eth1 hw ether 1234567890ab 192.168.1.1 netmask
> 255.255.255.0 broadcast 192.168.1.255". With this I can see the driver
> output "eht1: link up, speed 100 Mb/s, full duplex".
>
> -) Then "ping -I eth1 192.168.1.2". Then all I can get is "Destination
> Host Unreachable" :-(
>
> With the firmware built with Microcode-V2.4, it can send up to 6
> packages(get tx irq) and at last the "Link is down"; with the firmware
> of V3.0, no package TX and at last the TX queue full and was
> deactivated. With both of these firmware, no packages received.
>
> I wonder if there are anything wrong with my operations or if I need
> some other special configurations/operations? Or any advises on
> debugging that.

You'd have better luck reaching the people in charge of this
on the arm kernel mailing list, or possibly the netdev list.

As I recall, the procedure for converting Intel's microcode .h
file to something ixp4xx_eth wanted to load involved using a
.h or .c file off the ixp4xx_eth driver's old web site.
(I don't have the details handy.)


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