From 3b920b6c5ce76f01c60892399e2f3c1dfa056580 Mon Sep 17 00:00:00 2001 From: paavaanan Date: Fri, 8 Dec 2017 17:44:14 +0530 Subject: [PATCH] Added psuutil support for S6100/Z9100 Dell Platforms --- .../plugins/psuutil.py | 80 +++++++++++++++++++ .../plugins/psuutil.py | 80 +++++++++++++++++++ 2 files changed, 160 insertions(+) create mode 100644 device/dell/x86_64-dell_s6100_c2538-r0/plugins/psuutil.py create mode 100644 device/dell/x86_64-dell_z9100_c2538-r0/plugins/psuutil.py diff --git a/device/dell/x86_64-dell_s6100_c2538-r0/plugins/psuutil.py b/device/dell/x86_64-dell_s6100_c2538-r0/plugins/psuutil.py new file mode 100644 index 000000000000..5ae96a841908 --- /dev/null +++ b/device/dell/x86_64-dell_s6100_c2538-r0/plugins/psuutil.py @@ -0,0 +1,80 @@ +# +# psuutil.py +# Platform-specific PSU status interface for SONiC +# + + +import os.path + +try: + from sonic_psu.psu_base import PsuBase +except ImportError, e: + raise ImportError(str(e) + "- required module not found") + + +class PsuUtil(PsuBase): + """Platform-specific PSUutil class""" + + def __init__(self): + PsuBase.__init__(self) + + # Get a mailbox register + def get_pmc_register(self, reg_name): + mailbox_dir = "/sys/devices/platform/dell_s6100_lpc" + retval = 'ERR' + mb_reg_file = mailbox_dir+'/' + reg_name + if (not os.path.isfile(mb_reg_file)): + print mb_reg_file, 'not found !' + return retval + + try: + with open(mb_reg_file, 'r') as fd: + retval = fd.read() + except Exception as error: + logging.error("Unable to open ", mb_reg_file, "file !") + + retval = retval.rstrip('\r\n') + return retval + + def get_num_psus(self): + """ + Retrieves the number of PSUs available on the device + :return: An integer, the number of PSUs available on the device + """ + S6100_MAX_PSUS = 2 + return S6100_MAX_PSUS + + def get_psu_status(self, index): + """ + Retrieves the oprational status of power supply unit (PSU) defined + by index + :param index: An integer, index of the PSU of which to query status + :return: Boolean, True if PSU is operating properly, False if PSU is\ + faulty + """ + status = 0 + psu_status = self.get_pmc_register('psu_'+str(index)+'_status') + if (psu_status != 'ERR'): + psu_status = int(psu_status, 16) + # Check for PSU statuse + if (~psu_status & 0b1000) or (psu_status & 0b0100): + status = 1 + + return status + + def get_psu_presence(self, index): + """ + Retrieves the presence status of power supply unit (PSU) defined + by index + :param index: An integer, index of the PSU of which to query status + :return: Boolean, True if PSU is plugged, False if not + """ + status = 0 + psu_presence = self.get_pmc_register('psu_'+str(index)+'_status') + if (psu_presence != 'ERR'): + psu_presence = int(psu_presence, 16) + # Check for PSU presence + if (~psu_presence & 0b1): + status = 1 + + return status diff --git a/device/dell/x86_64-dell_z9100_c2538-r0/plugins/psuutil.py b/device/dell/x86_64-dell_z9100_c2538-r0/plugins/psuutil.py new file mode 100644 index 000000000000..d3d4f9d2b34c --- /dev/null +++ b/device/dell/x86_64-dell_z9100_c2538-r0/plugins/psuutil.py @@ -0,0 +1,80 @@ +# +# psuutil.py +# Platform-specific PSU status interface for SONiC +# + + +import os.path + +try: + from sonic_psu.psu_base import PsuBase +except ImportError, e: + raise ImportError(str(e) + "- required module not found") + + +class PsuUtil(PsuBase): + """Platform-specific PSUutil class""" + + def __init__(self): + PsuBase.__init__(self) + + # Get a mailbox register + def get_pmc_register(self, reg_name): + mailbox_dir = "/sys/devices/platform/dell_mailbox" + retval = 'ERR' + mb_reg_file = mailbox_dir+'/' + reg_name + if (not os.path.isfile(mb_reg_file)): + print mb_reg_file, 'not found !' + return retval + + try: + with open(mb_reg_file, 'r') as fd: + retval = fd.read() + except Exception as error: + logging.error("Unable to open ", mb_reg_file, "file !") + + retval = retval.rstrip('\r\n') + return retval + + def get_num_psus(self): + """ + Retrieves the number of PSUs available on the device + :return: An integer, the number of PSUs available on the device + """ + Z9100_MAX_PSUS = 2 + return Z9100_MAX_PSUS + + def get_psu_status(self, index): + """ + Retrieves the oprational status of power supply unit (PSU) defined + by index + :param index: An integer, index of the PSU of which to query status + :return: Boolean, True if PSU is operating properly, False if PSU is\ + faulty + """ + status = 0 + psu_status = self.get_pmc_register('psu_'+str(index)+'_status') + if (psu_status != 'ERR'): + psu_status = int(psu_status, 16) + # Check for PSU statuse + if (~psu_status & 0b1000) or (psu_status & 0b0100): + status = 1 + + return status + + def get_psu_presence(self, index): + """ + Retrieves the presence status of power supply unit (PSU) defined + by index + :param index: An integer, index of the PSU of which to query status + :return: Boolean, True if PSU is plugged, False if not + """ + status = 0 + psu_presence = self.get_pmc_register('psu_'+str(index)+'_status') + if (psu_presence != 'ERR'): + psu_presence = int(psu_presence, 16) + # Check for PSU presence + if (~psu_presence & 0b1): + status = 1 + + return status