From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Jack Morgenstein
<jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>,
Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Tom Tucker
<tom-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: MLX4 Cq Question
Date: Tue, 21 May 2013 12:42:09 +0200 [thread overview]
Message-ID: <519B4F81.9040108@acm.org> (raw)
In-Reply-To: <519B4104.4090102-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
On 05/21/13 11:40, Or Gerlitz wrote:
> 2. is possible in the Linux kernel for one hard irq callback to flash on
> CPU X while another hard irq callback is running on the same CPU?
I think that from kernel 2.6.35 on MSI IRQs are no longer nested. See
also
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=753649dbc49345a73a2454c770a3f2d54d11aec6
or http://lwn.net/Articles/380931/.
Bart.
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next prev parent reply other threads:[~2013-05-21 10:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-17 19:25 MLX4 Cq Question Tom Tucker
[not found] ` <51968438.7070907-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2013-05-17 21:37 ` Roland Dreier
[not found] ` <CAG4TOxNi0PxxskqXgxRhMPG0bmr+sS-x0_RG-zKyvLW1LNzoBg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-19 6:09 ` Or Gerlitz
2013-05-20 14:53 ` Jack Morgenstein
[not found] ` <201305201753.10806.jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2013-05-20 16:07 ` Roland Dreier
2013-05-20 19:51 ` Tom Tucker
[not found] ` <519A7EB2.8090206-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2013-05-20 19:58 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A823736FD2955D-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-05-20 20:10 ` Tom Tucker
2013-05-20 20:11 ` Or Gerlitz
2013-05-21 9:40 ` Or Gerlitz
[not found] ` <519B4104.4090102-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-05-21 10:42 ` Bart Van Assche [this message]
[not found] ` <519B4F81.9040108-HInyCGIudOg@public.gmane.org>
2013-05-21 10:43 ` Or Gerlitz
[not found] ` <519B4FEB.5090701-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-05-21 14:13 ` Jack Morgenstein
[not found] ` <201305211713.24370.jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2013-05-21 15:10 ` Or Gerlitz
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