netdev - [PATCH iproute2] man: devlink-region(8): document the 'new' subcommand

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Message-Id: <a9287bd06c374ed54ff824e49aca18df0366a595.1662094877.git.baruch@tkos.co.il>
Date:   Fri,  2 Sep 2022 08:01:17 +0300
From:   Baruch Siach <baruch@...s.co.il>
To:     Stephen Hemminger <stephen@...workplumber.org>,
        Jiri Pirko <jiri@...dia.com>
Cc:     netdev@...r.kernel.org, Baruch Siach <baruch@...s.co.il>
Subject: [PATCH iproute2] man: devlink-region(8): document the 'new' subcommand

Some driver provide no region snapshot unless created first with the
'new' operation. Add documentation and example.

Signed-off-by: Baruch Siach <baruch@...s.co.il>
---
 man/man8/devlink-region.8 | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/man/man8/devlink-region.8 b/man/man8/devlink-region.8
index e6617c189c34..b70679613341 100644
--- a/man/man8/devlink-region.8
+++ b/man/man8/devlink-region.8
@@ -22,6 +22,14 @@ devlink-region \- devlink address region access
 .BR "devlink region show"
 .RI "[ " DEV/REGION " ]"
 
+.ti -8
+.BR "devlink region new"
+.RI "" DEV/REGION ""
+.BR "[ "
+.BR "snapshot"
+.RI "" SNAPSHOT_ID ""
+.BR "]"
+
 .ti -8
 .BR "devlink region del"
 .RI "" DEV/REGION ""
@@ -56,6 +64,17 @@ devlink-region \- devlink address region access
 .I "DEV/REGION"
 - specifies the devlink device and address-region to query.
 
+.SS devlink region new - Create a snapshot specified by address-region name and snapshot ID
+
+.PP
+.I "DEV/REGION"
+- specifies the devlink device and address-region to snapshot
+
+.PP
+snapshot
+.I "SNAPSHOT_ID"
+- optionally specifies the snapshot ID to assign. If not specified, devlink will assign a unique ID to the snapshot.
+
 .SS devlink region del - Delete a snapshot specified by address-region name and snapshot ID
 
 .PP
@@ -106,6 +125,11 @@ devlink region show
 List available address regions and snapshot.
 .RE
 .PP
+devlink region new pci/0000:00:05.0/cr-space
+.RS 4
+Create a new snapshot from cr-space address region from device pci/0000:00:05.0.
+.RE
+.PP
 devlink region del pci/0000:00:05.0/cr-space snapshot 1
 .RS 4
 Delete snapshot id 1 from cr-space address region from device pci/0000:00:05.0.
-- 
2.35.1