[dpdk-dev] [PATCH] usertools: reduce devbind status output

[Ferruh Yigit <ferruh.yigit@intel.com>]

Script displays status for all device types and output is much
longer than it used to be. This makes harder to read script output.

This patch reduces output to the script into a device group which can be
defined with new -t,--type parameter to script.

Supported types:
net
crypto
mempool
eventdev

If no device type provided status will print net devices by default.

Sample usage:
./usertools/dpdk-devbind.py -s -t mempool

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 usertools/dpdk-devbind.py | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py
index bb4d536..609f0ad 100755
--- a/usertools/dpdk-devbind.py
+++ b/usertools/dpdk-devbind.py
@@ -86,7 +86,8 @@ def usage():
         Display usage information and quit
 
     -s, --status:
-        Print the current status of all known network and crypto devices.
+        Print the current status of all known devices in a device group.
+        Device group selected by --type (-t) argument.
         For each device, it displays the PCI domain, bus, slot and function,
         along with a text description of the device. Depending upon whether the
         device is being used by a kernel driver, the igb_uio driver, or no
@@ -99,6 +100,11 @@ def usage():
         status display will always occur after the other operations have taken
         place.
 
+    -t, --type:
+        Select device group to print status.
+        Device group can be network, crypto, eventdev or mempool.
+        Type argument can be emitted, by default "network" group used.
+
     -b driver, --bind=driver:
         Select the driver to use or \"none\" to unbind the device
 
@@ -598,26 +604,34 @@ def show_status():
     Displays to the user what devices are bound to the igb_uio driver, the
     kernel driver or to no driver'''
 
-    show_device_status(network_devices, "Network")
-    show_device_status(crypto_devices, "Crypto")
-    show_device_status(eventdev_devices, "Eventdev")
-    show_device_status(mempool_devices, "Mempool")
+    if status_type == "crypto":
+        show_device_status(crypto_devices, "Crypto")
+    elif status_type == "event":
+        show_device_status(eventdev_devices, "Eventdev")
+    elif status_type == "mempool":
+        show_device_status(mempool_devices, "Mempool")
+    else:
+        show_device_status(network_devices, "Network")
 
 def parse_args():
     '''Parses the command-line arguments given by the user and takes the
     appropriate action for each'''
     global b_flag
     global status_flag
+    global status_type
     global force_flag
     global args
     if len(sys.argv) <= 1:
         usage()
         sys.exit(0)
 
+    # set default status device type
+    status_type = "net"
+
     try:
-        opts, args = getopt.getopt(sys.argv[1:], "b:us",
+        opts, args = getopt.getopt(sys.argv[1:], "b:ust:",
                                    ["help", "usage", "status", "force",
-                                    "bind=", "unbind"])
+                                    "bind=", "unbind", "type="])
     except getopt.GetoptError as error:
         print(str(error))
         print("Run '%s --usage' for further information" % sys.argv[0])
@@ -627,6 +641,8 @@ def parse_args():
         if opt == "--help" or opt == "--usage":
             usage()
             sys.exit(0)
+        if opt == "--type" or opt == "-t":
+                status_type = arg
         if opt == "--status" or opt == "-s":
             status_flag = True
         if opt == "--force":
-- 
2.9.3