Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/spdk/examples/blob/cli/README.md b/src/spdk/examples/blob/cli/README.md
new file mode 100644
index 00000000..c457ad4e
--- /dev/null
+++ b/src/spdk/examples/blob/cli/README.md
@@ -0,0 +1,61 @@
+The blobcli tool has several options that are listed by using the -h command
+however the three operating modes are covered in more detail here:
+
+Command Mode
+------------
+This is the default and will just execute one command at a time. It's simple
+but the downside is that if you are going to interact quite a bit with the
+blobstore, the startup time for the application can be cumbersome.
+
+Shell Mode
+----------
+You startup shell mode by using the -S command. At that point you will get
+a "blob>" prompt where you can enter any of the commands, including -h,
+to execute them. You can stil enter just one at a time but the initial
+startup time for the application will not get in the way between commands
+anymore so it is much more usable.
+
+Script (aka test) Mode
+----------------------
+In script mode you just supply one command with a filename when you start
+the cli, for example `blobcli -T test.bs` will feed the tool the file
+called test.bs which contains a series of commands that will all run
+automatically and, like shell mode, will only initialize one time so is
+quick.
+
+The script file format (example) is shown below.  Comments are allowed and
+each line should contain one valid command (and its parameters) only. In
+order to operate on blobs via their ID value, use the token $Bn where n
+represents the instance of the blob created in the script.
+
+For example, the line `-s $B0` will operate on the blobid of the first
+blob created in the script (0 index based). `$B2` represents the third
+blob created in the script.
+
+If you start test mode with the additional "ignore" option, any invalid
+script lines will simply be skipped, otherwise the tool will exit if
+it runs into an invalid line (ie './blobcli -T test.bs ignore`).
+
+Sample test/bs file:
+~~~{.sh}
+# this is a comment
+-i
+-s bs
+-l bdevs
+-n 1
+-s bs
+-s $B0
+-n 2
+-s $B1
+-m $B0 Makefile
+-d $B0 M.blob
+-f $B1 65
+-d $B1 65.blob
+-s bs
+-x $B0 b0key boval
+-x $B1 b1key b1val
+-r $B0 b0key
+-s $B0
+-s $B1
+-s bs
+~~~