From: keith.busch@intel.com (Keith Busch)
Subject: Weirdness with discard cmd and get log pages
Date: Fri, 14 Oct 2016 19:19:33 -0400 [thread overview]
Message-ID: <20161014231932.GA19846@localhost.localdomain> (raw)
In-Reply-To: <CAG3=cOmZpmE=OXJr9cqu75-c7XQ8upeCBFUhsakn_3ts=zPkXg@mail.gmail.com>
On Fri, Oct 14, 2016@02:33:49PM -0700, Nisha Miller wrote:
> My problem is that I need to make it work on Kernel 2.6.33. For now,
> since blkdiscard and fstrim send only 1 range I'm ok with current
> support for discard cmd.
>
> However I need to fix the issue for get log pages. Are there any known
> issues with mapping user buffers in older linux-nvme drivers?
I'm pretty sure it works. I tested on a RHEL 6.6 (a 2.6.32 fork), and
I can read all the log pages without issue.
The nvme-cli doesn't align every buffer on page boundaries, so many of
these passthru commands require PRP2. Is your device using this correctly
on non-RW commands?
next prev parent reply other threads:[~2016-10-14 23:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-13 15:46 Weirdness with discard cmd and get log pages Nisha Miller
2016-10-13 16:15 ` Keith Busch
2016-10-13 18:18 ` Nisha Miller
2016-10-13 23:18 ` Keith Busch
2016-10-14 17:44 ` Keith Busch
2016-10-14 21:33 ` Nisha Miller
2016-10-14 23:19 ` Keith Busch [this message]
2016-10-18 16:55 ` Nisha Miller
2016-10-18 17:08 ` Keith Busch
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