From: Richard Weinberger <richard@nod.at>
To: KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>
Cc: "devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH] hyperv: Add netpoll support
Date: Tue, 08 Jul 2014 22:16:52 +0200 [thread overview]
Message-ID: <53BC51B4.4010703@nod.at> (raw)
In-Reply-To: <b2835410139848be8811403e3d7fa708@BY2PR03MB299.namprd03.prod.outlook.com>
Am 08.07.2014 22:03, schrieb KY Srinivasan:
> The VCPU the channel is bound to is available in the channel state. You could use the following code
> Fragment to ensure that the call is made on the "right" cpu:
>
> smp_call_function_single(dev->channel->target_cpu,
> netvsc_channel_cb, dev->channel, true);
This won't work as netpoll runs with IRQs disabled.
->ndo_poll_controller() has to make sure that SKBs can be received and transmitted
while IRQs are off. I thought calling the channel callback by hand would be enough
to receive SKBs.
Thanks,
//richard
next prev parent reply other threads:[~2014-07-08 20:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 9:32 [PATCH] hyperv: Add netpoll support Richard Weinberger
2014-07-08 17:55 ` Haiyang Zhang
2014-07-08 18:40 ` Richard Weinberger
2014-07-08 18:51 ` Haiyang Zhang
2014-07-08 18:01 ` KY Srinivasan
2014-07-08 18:39 ` Richard Weinberger
2014-07-08 20:03 ` KY Srinivasan
2014-07-08 20:16 ` Richard Weinberger [this message]
2014-07-08 22:47 ` Francois Romieu
2014-07-08 22:53 ` Richard Weinberger
2014-07-08 23:43 ` Francois Romieu
2014-07-09 7:59 ` Richard Weinberger
2014-07-08 23:08 ` Richard Weinberger
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=53BC51B4.4010703@nod.at \
--to=richard@nod.at \
--cc=devel@linuxdriverproject.org \
--cc=haiyangz@microsoft.com \
--cc=kys@microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).