From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <39739185.51ADF2F7@m2tech.co.nz> Date: Tue, 18 Jul 2000 11:06:45 +1200 From: ben bodley MIME-Version: 1.0 To: xuwentao@cn.ibm.com CC: mailing list Subject: Re: Why eth0 does not work References: <4825691F.002DF1CC.00@d73mta06.au.ibm.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: xuwentao@cn.ibm.com wrote: > > the output of the tcpdump -i eth0 host 7.1.1.5 in the NFS server is: > 13:47:08.224173 B arp who-has 7.1.1.21 tell 7.1.1.5 > 13:47:08.224207 > arp reply 7.1.1.21 (0:20:35:b1:fc:d8) is-at > 0:20:35:b1:fc:d8 ( > 12:34:56:78:90:ab) > 13:47:09.335805 B arp who-has 7.1.1.21 tell 7.1.1.5 > 13:47:09.335826 > arp reply 7.1.1.21 (0:20:35:b1:fc:d8) is-at > 0:20:35:b1:fc:d8 ( > 12:34:56:78:90:ab) > 13:47:10.447399 B arp who-has 7.1.1.21 tell 7.1.1.5 > 13:47:10.447413 > arp reply 7.1.1.21 (0:20:35:b1:fc:d8) is-at > 0:20:35:b1:fc:d8 ( > 12:34:56:78:90:ab) > 13:47:13.604779 B arp who-has 7.1.1.21 tell 7.1.1.5 > 13:47:13.604794 > arp reply 7.1.1.21 (0:20:35:b1:fc:d8) is-at > 0:20:35:b1:fc:d8 ( > 12:34:56:78:90:ab) > ....... > I also tried other vlaues for the buffer registers such as > page start reg: 0 > current page reg: 1 > page stop reg: 32 > boundary poiter: 0 > and also got rx errors. I dont know what to do next. > > Wentao > okay... well i'm not sure what patches you are using, but as i recall montavista did not use grant's latest kernel patch with a very major (but very small :) ethernet fix.. in the drivers/net/oaknet.c file please check the function oaknet_get_8390_hdr().. at the end of this function make sure you have the following code segment (the byte swap is the changed line): --------------- else ei_isb(E8390_BASE + E8390_DATA, hdr, sizeof(struct e8390_pkt_hdr)); /* byte swap the packet byte count */ hdr->count = le16_to_cpu(hdr->count); ei_obp(ENISR_RDC, base + EN0_ISR); /* ACK Remote DMA interrupt */ ei_status.dmaing &= ~0x01; return; ---------------- let me know if this helps.. cheers, ben -- /\\------------------------------------------------------------------ :::::::::::..ben.b..m2technologyltd.nz..64.9.4448307.130..::::::::::: ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/