From: Eli Cohen <eli@dev.mellanox.co.il>
To: Carol Soto <clsoto@linux.vnet.ibm.com>
Cc: Ben Hutchings <ben@decadent.org.uk>,
eli@mellanox.com, roland@kernel.org, sean.hefty@intel.com,
hal.rosenstock@gmail.com, linux-rdma@vger.kernel.org,
netdev@vger.kernel.org, brking@linux.vnet.ibm.com
Subject: Re: [Patch 1/2] IB/mlx5: Implementation of PCI error handler
Date: Thu, 13 Mar 2014 18:03:59 +0200 [thread overview]
Message-ID: <20140313160359.GB28066@mtldesk30> (raw)
In-Reply-To: <5321D412.1040501@linux.vnet.ibm.com>
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.
next prev parent reply other threads:[~2014-03-13 16:03 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 [this message]
2014-03-13 16:26 ` Carol Soto
2014-03-12 3:42 ` [Patch 2/2] IB/mlx5: Free resources during PCI error clsoto-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8
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=20140313160359.GB28066@mtldesk30 \
--to=eli@dev.mellanox.co.il \
--cc=ben@decadent.org.uk \
--cc=brking@linux.vnet.ibm.com \
--cc=clsoto@linux.vnet.ibm.com \
--cc=eli@mellanox.com \
--cc=hal.rosenstock@gmail.com \
--cc=linux-rdma@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=roland@kernel.org \
--cc=sean.hefty@intel.com \
/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