From: Roland Dreier <roland@topspin•com>
To: Owen Green <owenjinggreen@yahoo•com>
Cc: linuxppc-embedded@lists•linuxppc.org
Subject: Re: Fast HDLC driver
Date: 19 Nov 2002 08:55:08 -0800 [thread overview]
Message-ID: <52ptt1bitv.fsf@topspin.com> (raw)
In-Reply-To: <20021119161020.83422.qmail@web20104.mail.yahoo.com>
>>>>> "Owen" == Owen Green <owenjinggreen@yahoo•com> writes:
Owen> most of them calls netif_rx from inside interrupt_handler (I
Owen> don`t think this is the best place for doing that, watchdog
Owen> may expire if the interface gets very busy..)
I don't have a specific answer about HDLC, but I think calling
netif_rx() from interrupt context is correct. netif_rx() doesn't do
anything except queue the packet for processing and then mark the
network softirq. In fact if you want to call netif_rx() from
non-interrupt context then you have to use the netif_rx_ni() function
to make sure the softirq runs soon enough.
Best,
Roland
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-11-19 16:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20021119161020.83422.qmail@web20104.mail.yahoo.com>
2002-11-19 16:48 ` Fast HDLC driver Joakim Tjernlund
2002-12-17 12:44 ` memory management bug?? Owen Green
2002-11-19 16:55 ` Roland Dreier [this message]
[not found] ` <200211201439.45731.scop@digitel.com.br>
2002-11-20 17:41 ` Fast HDLC driver Roland Dreier
[not found] <200211191615.gAJGFVw09351@hofr.at>
2002-11-19 19:01 ` Owen Green
2002-11-19 16:08 Owen Green
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