From: Scott Wood <scottwood@freescale•com>
To: Saravanan S <sarans1987@gmail•com>
Cc: "linuxppc-dev@lists•ozlabs.org" <linuxppc-dev@lists•ozlabs.org>
Subject: Re: Ethernet over PCIe driver for Inter-Processor Communication
Date: Thu, 22 Aug 2013 16:38:15 -0500 [thread overview]
Message-ID: <1377207495.20722.11.camel@snotra.buserror.net> (raw)
In-Reply-To: <CAEqOc-Rrsc2JoM4eeLzgyhGXqpJoe2Jfmf6uV4LjrTr7e8hhAw@mail.gmail.com>
On Thu, 2013-08-22 at 21:04 +0530, Saravanan S wrote:
> a) I can generate MSI interrupts from End Point to Root Complex over
> PCI . But the vice-versa is not possible . However i need a method to
> interrupt the End Point from the Root Complex to complete my driver.
> Only previous references I can find are this post
> http://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg25765.html . However this uses doorbells and I think may not be possible in MPC8640.
You should be able to write to the destination's MPIC registers to send
a doorbell.
-Scott
next prev parent reply other threads:[~2013-08-22 21:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-22 15:34 Ethernet over PCIe driver for Inter-Processor Communication Saravanan S
2013-08-22 21:38 ` Scott Wood [this message]
2013-08-22 21:43 ` David Hawkins
2013-08-22 22:29 ` Ira W. Snyder
2013-08-25 15:20 ` Saravanan S
2013-08-25 22:38 ` David Hawkins
2013-08-30 17:37 ` Saravanan S
2013-08-30 18:06 ` David Hawkins
2013-09-04 18:34 ` Saravanan S
2013-09-04 19:28 ` David Hawkins
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=1377207495.20722.11.camel@snotra.buserror.net \
--to=scottwood@freescale$(echo .)com \
--cc=linuxppc-dev@lists$(echo .)ozlabs.org \
--cc=sarans1987@gmail$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox