From: Carol Soto <clsoto-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
To: Eli Cohen <eli-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
Cc: Ben Hutchings <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>,
eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org,
roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
brking-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org
Subject: Re: [Patch 1/2] IB/mlx5: Implementation of PCI error handler
Date: Thu, 13 Mar 2014 11:26:30 -0500 [thread overview]
Message-ID: <5321DC36.9020009@linux.vnet.ibm.com> (raw)
In-Reply-To: <20140313160359.GB28066@mtldesk30>
On 3/13/2014 11:03 AM, Eli Cohen wrote:
> On Thu, Mar 13, 2014 at 10:51:46AM -0500, Carol Soto wrote:
>> The motivation to reduce that timeout is that if there is a process
>> in the middle of a HW command
>> in the middle of the PCI error, I probably did not want to wait 2hrs
>> since the command will never complete
>> since the card is dead. Now you are right, I forgot the case of big
>> memory registration where commands can
>> take longer than that. Do you have an idea of what is the longest
>> time that a command can take in mlx5?
>>
> There is no guranteed time for command completions. With current
> driver/firmware, registration of 4.5 GB can take around 2 minutes; for
> larger regions it can take even more time. As I mentioned earlier, I
> will soon send a patch that reduces registation times for large
> regions.
Hi Eli,
I can wait for your patch to be available and try this again. For now,
I can remove
my changes for the timeout and resubmit the patch.
Thanks for the feedback about the commands.
Carol
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next prev parent reply other threads:[~2014-03-13 16:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-12 3:42 [Patch 0/2] IB/mlx5: Add PCI error handler support for mlx5 clsoto-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8
2014-03-12 3:42 ` [Patch 1/2] IB/mlx5: Implementation of PCI error handler clsoto
[not found] ` <20140312034512.065218504-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2014-03-12 18:34 ` Ben Hutchings
[not found] ` <1394649252.23624.36.camel-nDn/Rdv9kqW9Jme8/bJn5UCKIB8iOfG2tUK59QYPAWc@public.gmane.org>
2014-03-12 22:00 ` Carol Soto
2014-03-13 6:45 ` Eli Cohen
2014-03-13 15:12 ` Carol Soto
2014-03-13 15:40 ` Eli Cohen
2014-03-13 15:51 ` Carol Soto
2014-03-13 16:03 ` Eli Cohen
2014-03-13 16:26 ` Carol Soto [this message]
2014-03-12 3:42 ` [Patch 2/2] IB/mlx5: Free resources during PCI error clsoto-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8
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