From: Francois Romieu <romieu@fr.zoreil.com>
To: Richard Weinberger <richard@nod.at>
Cc: KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] hyperv: Add netpoll support
Date: Wed, 9 Jul 2014 00:47:24 +0200 [thread overview]
Message-ID: <20140708224724.GA2994@electric-eye.fr.zoreil.com> (raw)
In-Reply-To: <53BC51B4.4010703@nod.at>
Richard Weinberger <richard@nod.at> :
[...]
> 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.
What are you taking about ? netconsole does not need to receive.
hyperv start_xmit handler almost does its own Tx completion as you have
noticed. The situation is imho close to a virtual device one as was veth
in bb446c19fefd7b4435adb12a9dd7666adc5b553a.
--
Ueimor
next prev parent reply other threads:[~2014-07-08 22:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 9:32 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
2014-07-08 22:47 ` Francois Romieu [this message]
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
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