e320: bist: Add link_up test

- Returns true if the link of sfp0 is up (1G/10G)

1 files changed, 26 insertions, 0 deletions

diff --git a/mpm/python/e320_bist b/mpm/python/e320_bist
index 99da3cd74..c9664ce00 100755
--- a/mpm/python/e320_bist
+++ b/mpm/python/e320_bist
@@ -797,6 +797,32 @@ class E320BIST(object):
         }
         return len(result) == 1, result
 
+    def bist_link_up(self):
+        """
+        BIST test for SFP link
+        Description: Checks if SFP link is up
+        External Equipment: 1G/10G cable connected to SFP port
+        Return dictionary:
+            - sfp0: status of link
+        Return status: True if link is UP
+        """
+        assert 'link_up' in self.tests_to_run
+        if self.args.dry_run:
+            return True, {'sfp0': 'UP'}
+        from pyroute2 import IPRoute
+        result = {}
+        with IPRoute() as ipr:
+            links = ipr.link_lookup(ifname='sfp0')
+            if not links:
+                return False, {'error_msg': "No interface found"}
+            link_info = next(iter(ipr.get_links(links)), None)
+            if link_info == None:
+                return False, {'error_msg': "Error on get_links for sfp0"}
+            result['sfp0'] = link_info.get_attr('IFLA_OPERSTATE')
+            if result['sfp0'] != 'UP':
+                result['error_msg'] = "Link not up for interface"
+        return 'error_msg' not in result, result
+
 
 def gpio_set_all(gpio_bank, value, gpio_size, ddr_mask):
     """Helper function for set gpio.