From: Roger Pau Monne <roger.pau@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: Tim Deegan <tim@xen.org>, Ian Jackson <ian.jackson@eu.citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Jan Beulich <jbeulich@suse.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: [PATCH RFC 2/5] blkif: document new blkback path xenstore node
Date: Fri, 22 May 2015 11:18:55 +0200 [thread overview]
Message-ID: <1432286338-56077-3-git-send-email-roger.pau@citrix.com> (raw)
In-Reply-To: <1432286338-56077-1-git-send-email-roger.pau@citrix.com>
FreeBSD blkback uses the path xenstore node in order to fetch the path to
the underlying backing storage (either a block device or raw image). This
node is set by the hotplug scripts.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: Tim Deegan <tim@xen.org>
---
xen/include/public/io/blkif.h | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/xen/include/public/io/blkif.h b/xen/include/public/io/blkif.h
index 6baf7fb..b1e2245 100644
--- a/xen/include/public/io/blkif.h
+++ b/xen/include/public/io/blkif.h
@@ -89,8 +89,15 @@
* Values: string
*
* A free formatted string providing sufficient information for the
- * backend driver to open the backing device. (e.g. the path to the
- * file or block device representing the backing store.)
+ * hotplug script to attach the device and provide a suitable
+ * handler (ie: a block device) for blkback to use.
+ *
+ * path
+ * Values: string
+ * Notes: 11
+ *
+ * A free formatted string that contains the path to the backing device
+ * for this blkback instance.
*
* type
* Values: "file", "phy", "tap"
@@ -385,6 +392,7 @@
* than RING_SIZE * BLKIF_MAX_SEGMENTS_PER_REQUEST.
*(10) The discard-secure property may be present and will be set to 1 if the
* backing device supports secure discard.
+ *(11) This node is only present on FreeBSD.
*/
/*
--
1.9.5 (Apple Git-50.3)
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
next prev parent reply other threads:[~2015-05-22 9:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 9:18 [PATCH RFC 0/5] tools/FreeBSD: enable disk hotplug scripts Roger Pau Monne
2015-05-22 9:18 ` [PATCH RFC 1/5] libxl: only write physical-device on Linux and NetBSD Roger Pau Monne
2015-05-22 9:18 ` Roger Pau Monne [this message]
2015-06-01 13:24 ` [PATCH RFC 2/5] blkif: document new blkback path xenstore node Wei Liu
2015-06-02 15:22 ` Roger Pau Monné
2015-06-02 16:57 ` Wei Liu
2015-06-17 13:22 ` Ian Campbell
2015-05-22 9:18 ` [PATCH RFC 3/5] libxl/FreeBSD: write blkback "path" node Roger Pau Monne
2015-05-22 9:18 ` [PATCH RFC 4/5] hotplug/FreeBSD: add block hotplug script Roger Pau Monne
2015-05-22 9:18 ` [PATCH RFC 5/5] libxl/FreeBSD: add support for disk hotplug scripts Roger Pau Monne
2015-06-17 13:23 ` Ian Campbell
2015-06-17 14:57 ` Roger Pau Monné
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=1432286338-56077-3-git-send-email-roger.pau@citrix.com \
--to=roger.pau@citrix.com \
--cc=ian.campbell@citrix.com \
--cc=ian.jackson@eu.citrix.com \
--cc=jbeulich@suse.com \
--cc=tim@xen.org \
--cc=xen-devel@lists.xenproject.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.