From: xu chen <chenxurcy@yahoo.com.cn>
To: linuxppc-dev@ozlabs.org
Subject: opb_ethernet driver
Date: Mon, 11 Jun 2007 10:37:55 +0800 (CST) [thread overview]
Message-ID: <22250.22723.qm@web92006.mail.cnb.yahoo.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 624 bytes --]
Hello.
I'm porting an opb_ethernet driver to my ml403 board now, using the 2.6.17 kernel. I know the ethernet support 3 mode: No DMA, simple DMA, scatter gather DMA, when I use the No DMA mode, we can write the skb into the FIFO, but can't ping other PCs in the network. When I use the simple DMA mode, at the time of ping, in the driver, we should initialize the DMA channel, but when transfering the skb, the DMA returns a "DMA bus time out" signal.
Now I'm worry about it. Who had encountered the problem before? I think I need some help.
---------------------------------
雅虎免费邮箱-3.5G容量，20M附件
[-- Attachment #2: Type: text/html, Size: 715 bytes --]
next reply other threads:[~2007-06-11 2:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-11 2:37 xu chen [this message]
2007-06-12 3:45 ` opb_ethernet driver David Gibson
2007-06-14 6:13 ` Grant Likely
-- strict thread matches above, loose matches on Subject: below --
2007-06-11 2:47 xu chen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=22250.22723.qm@web92006.mail.cnb.yahoo.com \
--to=chenxurcy@yahoo.com.cn \
--cc=linuxppc-dev@ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.