[PATCH v4 4/9] rpcsys: Add a command for printing rpc-client information

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From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>

It's mostly the same information as with xprt-switches, except with
rpc-client id prepended to the first line.

Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
---
 tools/rpcsys/client.py | 27 +++++++++++++++++++++++++++
 tools/rpcsys/rpcsys.py |  2 ++
 tools/rpcsys/switch.py |  7 ++++---
 3 files changed, 33 insertions(+), 3 deletions(-)
 create mode 100644 tools/rpcsys/client.py

diff --git a/tools/rpcsys/client.py b/tools/rpcsys/client.py
new file mode 100644
index 000000000000..5192cc226aed
--- /dev/null
+++ b/tools/rpcsys/client.py
@@ -0,0 +1,27 @@
+import sysfs
+import switch
+
+class RpcClient:
+    def __init__(self, path):
+        self.path = path
+        self.id = int(str(path).rsplit("-", 1)[1])
+        self.switch = switch.XprtSwitch(path / (path / "switch").readlink(), sep=",")
+
+    def __lt__(self, rhs):
+        return self.id < rhs.id
+
+    def __str__(self):
+        return "client %s: %s" % (self.id, self.switch)
+
+
+def list_rpc_clients(args):
+    clients = [ RpcClient(f) for f in (sysfs.SUNRPC / "rpc-clients").iterdir() ]
+    clients.sort()
+    for client in clients:
+        if args.id == None or client.id == args.id[0]:
+            print(client)
+
+def add_command(subparser):
+    parser = subparser.add_parser("rpc-client", help="Commands for rpc clients")
+    parser.add_argument("--id", metavar="ID", nargs=1, type=int, help="Id of a specific client to show")
+    parser.set_defaults(func=list_rpc_clients)
diff --git a/tools/rpcsys/rpcsys.py b/tools/rpcsys/rpcsys.py
index dfad6ac08fa0..e2172cdfa4c1 100755
--- a/tools/rpcsys/rpcsys.py
+++ b/tools/rpcsys/rpcsys.py
@@ -10,9 +10,11 @@ def show_small_help(args):
 parser.set_defaults(func=show_small_help)
 
 
+import client
 import switch
 import xprt
 subparser = parser.add_subparsers(title="commands")
+client.add_command(subparser)
 switch.add_command(subparser)
 xprt.add_command(subparser)
 
diff --git a/tools/rpcsys/switch.py b/tools/rpcsys/switch.py
index afb6963a0a1f..5384f970235c 100644
--- a/tools/rpcsys/switch.py
+++ b/tools/rpcsys/switch.py
@@ -2,9 +2,10 @@ import sysfs
 import xprt
 
 class XprtSwitch:
-    def __init__(self, path):
+    def __init__(self, path, sep=":"):
         self.path = path
         self.id = int(str(path).rsplit("-", 1)[1])
+        self.sep = sep
 
         self.xprts = [ xprt.Xprt(p) for p in self.path.iterdir() if p.is_dir() ]
         self.xprts.sort()
@@ -15,8 +16,8 @@ class XprtSwitch:
         return self.path < rhs.path
 
     def __str__(self):
-        line = "switch %s: num_xprts %s, num_active %s, queue_len %s" % \
-                (self.id, self.num_xprts, self.num_active, self.queue_len)
+        line = "switch %s%s num_xprts %s, num_active %s, queue_len %s" % \
+                (self.id, self.sep, self.num_xprts, self.num_active, self.queue_len)
         for x in self.xprts:
             line += "\n	%s" % x.small_str()
         return line
-- 
2.33.1




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