[show] add support for gRPC show commands for active-active (#2629)

Signed-off-by: vaibhav-dahiya vdahiya@microsoft.com
This PR adds support for show mux hwmode muxdirection as well as
show mux grpc muxdirection to show the state of gRPC connected to the SoCs for 'active-active' acble type


vdahiya@sonic:~$ show mux grpc muxdirection 
Port       Direction    Presence    PeerDirection    ConnectivityState
---------  -----------  ----------  ---------------  -------------------
Ethernet0  active       False       active           READY
vdahiya@sonic:~$ 
vdahiya@sonic:~$ show mux grpc muxdirection --json
{
    "HWMODE": {
        "Ethernet0": {
            "Direction": "active",
            "Presence": "False",
            "PeerDirection": "active",
            "ConnectivityState": "READY"
        }
    }
}

What I did
Added support for the commands.

How I did it
How to verify it
UT and running the changes on Testbed

show/muxcable.py

@@ -36,6 +36,21 @@
 VENDOR_MODEL_REGEX = re.compile(r"CAC\w{3}321P2P\w{2}MS")
 
 
+def get_asic_index_for_port(port):
+    asic_index = None
+    if platform_sfputil is not None:
+        asic_index = platform_sfputil_helper.get_asic_id_for_logical_port(port)
+        if asic_index is None:
+            # TODO this import is only for unit test purposes, and should be removed once sonic_platform_base
+            # is fully mocked
+            import sonic_platform_base.sonic_sfp.sfputilhelper
+            asic_index = sonic_platform_base.sonic_sfp.sfputilhelper.SfpUtilHelper().get_asic_id_for_logical_port(port)
+            if asic_index is None:
+                port_name = platform_sfputil_helper.get_interface_alias(port, db)
+                click.echo("Got invalid asic index for port {}, cant retreive mux status".format(port_name))
+                return 0
+    return asic_index
+
 def db_connect(db_name, namespace=EMPTY_NAMESPACE):
     return swsscommon.DBConnector(db_name, REDIS_TIMEOUT_MSECS, True, namespace)
 
@@ -1239,6 +1254,67 @@ def get_hwmode_mux_direction_port(db, port):
     return res_dict
 
 
+def create_active_active_mux_direction_json_result(result, port, db):
+
+    port = platform_sfputil_helper.get_interface_alias(port, db)
+    result["HWMODE"][port] = {}
+    res_dict = get_grpc_cached_version_mux_direction_per_port(db, port)
+    result["HWMODE"][port]["Direction"] = res_dict["self_mux_direction"]
+    result["HWMODE"][port]["Presence"] = res_dict["presence"]
+    result["HWMODE"][port]["PeerDirection"] = res_dict["peer_mux_direction"]
+    result["HWMODE"][port]["ConnectivityState"] = res_dict["grpc_connection_status"]
+
+    rc = res_dict["rc"]
+
+    return rc
+
+def create_active_standby_mux_direction_json_result(result, port, db):
+
+    res_dict = get_hwmode_mux_direction_port(db, port)
+    port = platform_sfputil_helper.get_interface_alias(port, db)
+    result["HWMODE"][port] = {}
+    result["HWMODE"][port]["Direction"] = res_dict[1]
+    result["HWMODE"][port]["Presence"] = res_dict[2]
+
+    rc = res_dict[0]
+
+    return rc
+
+def create_active_active_mux_direction_result(body, port, db):
+
+    res_dict = get_grpc_cached_version_mux_direction_per_port(db, port)
+    temp_list = []
+    port = platform_sfputil_helper.get_interface_alias(port, db)
+    temp_list.append(port)
+    temp_list.append(res_dict["self_mux_direction"])
+    temp_list.append(res_dict["presence"])
+    temp_list.append(res_dict["peer_mux_direction"])
+    temp_list.append(res_dict["grpc_connection_status"])
+    body.append(temp_list)
+
+    rc = res_dict["rc"]
+
+    return rc
+
+def create_active_standby_mux_direction_result(body, port, db):
+
+    res_dict = get_hwmode_mux_direction_port(db, port)
+
+    temp_list = []
+    port = platform_sfputil_helper.get_interface_alias(port, db)
+    temp_list.append(port)
+    temp_list.append(res_dict[1])
+    temp_list.append(res_dict[2])
+    body.append(temp_list)
+
+    rc = res_dict[0]
+
+    delete_all_keys_in_db_table("APPL_DB", "XCVRD_SHOW_HWMODE_DIR_CMD")
+    delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RSP")
+    delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RES")
+
+    return rc
+
 @muxcable.group(cls=clicommon.AbbreviationGroup)
 def hwmode():
     """Shows the muxcable hardware information directly"""
@@ -1247,39 +1323,52 @@ def hwmode():
 
 @hwmode.command()
 @click.argument('port', metavar='<port_name>', required=False, default=None)
+@click.option('--json', 'json_output', required=False, is_flag=True, type=click.BOOL, help="display the output in json format")
 @clicommon.pass_db
-def muxdirection(db, port):
+def muxdirection(db, port, json_output):
     """Shows the current direction of the muxcable {active/standy}"""
 
     port = platform_sfputil_helper.get_interface_name(port, db)
 
     delete_all_keys_in_db_table("APPL_DB", "XCVRD_SHOW_HWMODE_DIR_CMD")
     delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RSP")
     delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RES")
+    per_npu_configdb = {}
 
-    if port is not None:
+    namespaces = multi_asic.get_front_end_namespaces()
+    for namespace in namespaces:
+        asic_id = multi_asic.get_asic_index_from_namespace(namespace)
 
+        per_npu_configdb[asic_id] = ConfigDBConnector(use_unix_socket_path=False, namespace=namespace)
+        per_npu_configdb[asic_id].connect()
+
+    if port is not None:
+
+        asic_index = get_asic_index_for_port(port)
+        cable_type = get_optional_value_for_key_in_config_tbl(per_npu_configdb[asic_index], port, "cable_type", "MUX_CABLE")
         if check_port_in_mux_cable_table(port) == False:
             click.echo("Not Y-cable port")
             return CONFIG_FAIL
 
-        res_dict = get_hwmode_mux_direction_port(db, port)
-
-        body = []
-        temp_list = []
-        headers = ['Port', 'Direction', 'Presence']
-        port = platform_sfputil_helper.get_interface_alias(port, db)
-        temp_list.append(port)
-        temp_list.append(res_dict[1])
-        temp_list.append(res_dict[2])
-        body.append(temp_list)
-
-        rc = res_dict[0]
-        click.echo(tabulate(body, headers=headers))
+        if json_output:
+            result = {}
+            result ["HWMODE"] = {}
+            if cable_type == "active-active":
+                rc = create_active_active_mux_direction_json_result(result, port, db)
+            else:
+                rc = False
+                rc = create_active_standby_mux_direction_json_result(result, port, db)
+            click.echo("{}".format(json.dumps(result, indent=4)))
 
-        delete_all_keys_in_db_table("APPL_DB", "XCVRD_SHOW_HWMODE_DIR_CMD")
-        delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RSP")
-        delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RES")
+        else:
+            body = []
+            if cable_type == "active-active":
+                headers = ['Port', 'Direction', 'Presence', 'PeerDirection', 'ConnectivityState']
+                rc = create_active_active_mux_direction_result(body, port, db)
+            else:
+                rc = create_active_standby_mux_direction_result(body, port, db)
+                headers = ['Port', 'Direction', 'Presence']
+            click.echo(tabulate(body, headers=headers))
 
         return rc
 
@@ -1289,8 +1378,12 @@ def muxdirection(db, port):
 
         rc_exit = True
         body = []
+        active_active = False
+        if json_output:
+            result = {}
+            result ["HWMODE"] = {}
 
-        for port in logical_port_list:
+        for port in natsorted(logical_port_list):
 
             if platform_sfputil is not None:
                 physical_port_list = platform_sfputil_helper.logical_port_name_to_physical_port_list(port)
@@ -1316,26 +1409,37 @@ def muxdirection(db, port):
             if port != logical_port_list_per_port[0]:
                 continue
 
-            temp_list = []
+
+            asic_index = get_asic_index_for_port(port)
+            cable_type = get_optional_value_for_key_in_config_tbl(per_npu_configdb[asic_index], port, "cable_type", "MUX_CABLE")
+            if json_output:
+                if cable_type == "active-active":
+                    rc = create_active_active_mux_direction_json_result(result, port, db)
+                    active_active = True
+                else:
+                    rc = create_active_standby_mux_direction_json_result(result, port, db)
 
-            res_dict = get_hwmode_mux_direction_port(db, port)
+            else:
+                if cable_type == 'active-active':
+                    rc = create_active_active_mux_direction_result(body, port, db)
+                    active_active = True
+                else:
+                    rc = create_active_standby_mux_direction_result(body, port, db)
+                if rc != 0:
+                    rc_exit = False
 
-            port = platform_sfputil_helper.get_interface_alias(port, db)
-            temp_list.append(port)
-            temp_list.append(res_dict[1])
-            temp_list.append(res_dict[2])
-            body.append(temp_list)
-            rc = res_dict[0]
-            if rc != 0:
-                rc_exit = False
 
-        headers = ['Port', 'Direction', 'Presence']
 
-        click.echo(tabulate(body, headers=headers))
+        if json_output:
+            click.echo("{}".format(json.dumps(result, indent=4)))
+        else:
+            if active_active:
+
+                headers = ['Port', 'Direction', 'Presence', 'PeerDirection', 'ConnectivityState']
+            else:
+                headers = ['Port', 'Direction', 'Presence']
+            click.echo(tabulate(body, headers=headers))
 
-        delete_all_keys_in_db_table("APPL_DB", "XCVRD_SHOW_HWMODE_DIR_CMD")
-        delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RSP")
-        delete_all_keys_in_db_table("STATE_DB", "XCVRD_SHOW_HWMODE_DIR_RES")
         if rc_exit == False:
             sys.exit(EXIT_FAIL)
 
@@ -2003,3 +2107,152 @@ def tunnel_route(db, port, json_output):
             click.echo(tabulate(print_data, headers=headers))
 
     sys.exit(STATUS_SUCCESSFUL)
+
+
+def get_grpc_cached_version_mux_direction_per_port(db, port):
+
+
+    state_db = {}
+    mux_info_dict = {}
+    mux_info_full_dict = {}
+    trans_info_full_dict = {}
+    mux_info_dict["rc"] = False
+
+    # Getting all front asic namespace and correspding config and state DB connector
+
+    namespaces = multi_asic.get_front_end_namespaces()
+    for namespace in namespaces:
+        asic_id = multi_asic.get_asic_index_from_namespace(namespace)
+        state_db[asic_id] = swsscommon.SonicV2Connector(use_unix_socket_path=False, namespace=namespace)
+        state_db[asic_id].connect(state_db[asic_id].STATE_DB)
+
+    if platform_sfputil is not None:
+        asic_index = platform_sfputil_helper.get_asic_id_for_logical_port(port)
+
+    if asic_index is None:
+        # TODO this import is only for unit test purposes, and should be removed once sonic_platform_base
+        # is fully mocked
+        import sonic_platform_base.sonic_sfp.sfputilhelper
+        asic_index = sonic_platform_base.sonic_sfp.sfputilhelper.SfpUtilHelper().get_asic_id_for_logical_port(port)
+        if asic_index is None:
+            click.echo("Got invalid asic index for port {}, cant retrieve mux cable table entries".format(port))
+            return mux_info_dict
+
+
+    mux_info_full_dict[asic_index] = state_db[asic_index].get_all(
+        state_db[asic_index].STATE_DB, 'MUX_CABLE_INFO|{}'.format(port))
+    trans_info_full_dict[asic_index] = state_db[asic_index].get_all(
+        state_db[asic_index].STATE_DB, 'TRANSCEIVER_STATUS|{}'.format(port))
+
+    res_dir = {}
+    res_dir = mux_info_full_dict[asic_index]
+    mux_info_dict["self_mux_direction"] = res_dir.get("self_mux_direction", None)
+    mux_info_dict["peer_mux_direction"] = res_dir.get("peer_mux_direction", None)
+    mux_info_dict["grpc_connection_status"] = res_dir.get("grpc_connection_status", None)
+
+    trans_dir = {}
+    trans_dir = trans_info_full_dict[asic_index]
+
+    status = trans_dir.get("status", "0")
+    presence = "True" if status == "1" else "False"
+
+    mux_info_dict["presence"] = presence
+
+    mux_info_dict["rc"] = True
+
+    return mux_info_dict
+
+
+@muxcable.group(cls=clicommon.AbbreviationGroup)
+def grpc():
+    """Shows the muxcable hardware information directly"""
+    pass
+
+
+@grpc.command()
+@click.argument('port', metavar='<port_name>', required=False, default=None)
+@click.option('--json', 'json_output', required=False, is_flag=True, type=click.BOOL, help="display the output in json format")
+@clicommon.pass_db
+def muxdirection(db, port, json_output):
+    """Shows the current direction of the FPGA facing port on Tx Side {active/standy}"""
+
+    port = platform_sfputil_helper.get_interface_name(port, db)
+
+
+    if port is not None:
+
+        if check_port_in_mux_cable_table(port) == False:
+            click.echo("Not Y-cable port")
+            return CONFIG_FAIL
+
+        if json_output:
+            result = {}
+            result ["HWMODE"] = {}
+            rc = create_active_active_mux_direction_json_result(result, port, db)
+            click.echo("{}".format(json.dumps(result, indent=4)))
+
+        else:
+            body = []
+
+            headers = ['Port', 'Direction', 'Presence', 'PeerDirection', 'ConnectivityState']
+            rc = create_active_active_mux_direction_result(body, port, db)
+            click.echo(tabulate(body, headers=headers))
+
+        return rc
+
+    else:
+
+
+        logical_port_list = platform_sfputil_helper.get_logical_list()
+
+        rc_exit = True
+        body = []
+        if json_output:
+            result = {}
+            result ["HWMODE"] = {}
+
+        for port in natsorted(logical_port_list):
+
+            if platform_sfputil is not None:
+                physical_port_list = platform_sfputil_helper.logical_port_name_to_physical_port_list(port)
+
+            if not isinstance(physical_port_list, list):
+                continue
+            if len(physical_port_list) != 1:
+                continue
+
+            if not check_port_in_mux_cable_table(port):
+                continue
+
+            physical_port = physical_port_list[0]
+            logical_port_list_for_physical_port = platform_sfputil_helper.get_physical_to_logical()
+
+            logical_port_list_per_port = logical_port_list_for_physical_port.get(physical_port, None)
+
+            """ This check is required for checking whether or not this logical port is the one which is
+            actually mapped to physical port and by convention it is always the first port.
+            TODO: this should be removed with more logic to check which logical port maps to actual physical port
+            being used"""
+
+            if port != logical_port_list_per_port[0]:
+                continue
+
+            if json_output:
+                rc = create_active_active_mux_direction_json_result(result, port, db)
+            else:
+                rc = create_active_active_mux_direction_result(body, port, db)
+
+            if rc != True:
+                rc_exit = False
+
+        if json_output:
+            click.echo("{}".format(json.dumps(result, indent=4)))
+        else:
+            headers = ['Port', 'Direction', 'Presence', 'PeerDirection', 'ConnectivityState']
+
+            click.echo(tabulate(body, headers=headers))
+
+        if rc_exit == False:
+            sys.exit(EXIT_FAIL)
+
+