DellEMC: S5248F - Platform API 2.0 implementation (sonic-net#7930)

#### Why I did it
Support API 2.0 for S5248F platform

#### How I did it
Making changes to S5248F platform specific directory

Co-authored-by: Arun LK <[email protected]>

Author: 2 people

platform/broadcom/sonic-platform-modules-dell/common/sonic_platform/hwaccess.py

@@ -19,6 +19,23 @@ def pci_get_value(resource, offset):
         mm.close()
     return val
 
+def pci_mem_write(memmap, offset, data):
+    """ Write PCI device """
+    memmap.seek(offset)
+    memmap.write(struct.pack('I', data))
+
+def pci_set_value(resource, val, offset):
+    """ Set a value to PCI device """
+    with open(resource, 'w+b') as filed:
+        memmap = None
+        try:
+            memmap = mmap.mmap(filed.fileno(), 0)
+            pci_mem_write(memmap, offset, val)
+        except EnvironmentError:
+            pass
+        if memmap is not None:
+            memmap.close()
+
 # Read I2C device
 
 def i2c_get(bus, i2caddr, ofs):

platform/broadcom/sonic-platform-modules-dell/debian/platform-modules-s5248f.install

@@ -5,6 +5,7 @@ s5248f/scripts/sensors usr/bin
 s5248f/scripts/qsfp_irq_enable.py usr/bin
 s5248f/cfg/s5248f-modules.conf etc/modules-load.d
 s5248f/systemd/platform-modules-s5248f.service etc/systemd/system
+s5248f/modules/sonic_platform-1.0-py3-none-any.whl usr/share/sonic/device/x86_64-dellemc_s5248f_c3538-r0
 common/platform_reboot usr/share/sonic/device/x86_64-dellemc_s5248f_c3538-r0
 common/fw-updater usr/local/bin
 common/onie_mode_set usr/local/bin

platform/broadcom/sonic-platform-modules-dell/debian/rules

@@ -45,6 +45,11 @@ override_dh_auto_build:
 			python2.7 setup.py bdist_wheel -d $(MOD_SRC_DIR)/$${mod}/modules; \
 			python3 setup.py bdist_wheel -d $(MOD_SRC_DIR)/$${mod}/modules; \
 			cd $(MOD_SRC_DIR); \
+		elif [ $$mod = "s5248f" ]; then \
+			cp $(COMMON_DIR)/ipmihelper.py $(MOD_SRC_DIR)/$${mod}/sonic_platform/ipmihelper.py; \
+			cd $(MOD_SRC_DIR)/$${mod}; \
+			python3 setup.py bdist_wheel -d $(MOD_SRC_DIR)/$${mod}/modules; \
+			cd $(MOD_SRC_DIR); \
 		elif [ $$mod = "z9332f" ]; then \
 			cp $(COMMON_DIR)/ipmihelper.py $(MOD_SRC_DIR)/$${mod}/sonic_platform/ipmihelper.py; \
 			cd $(MOD_SRC_DIR)/$${mod}; \
@@ -103,6 +108,11 @@ override_dh_clean:
 			rm -f $(MOD_SRC_DIR)/$${mod}/modules/*.whl; \
 			rm -rf $(MOD_SRC_DIR)/$${mod}/build; \
 			rm -rf $(MOD_SRC_DIR)/$${mod}/build/*.egg-info; \
+		elif [ $$mod = "s5248f" ]; then \
+			rm -f $(MOD_SRC_DIR)/$${mod}/sonic_platform/ipmihelper.py; \
+			rm -f $(MOD_SRC_DIR)/$${mod}/modules/*.whl; \
+			rm -rf $(MOD_SRC_DIR)/$${mod}/build; \
+			rm -rf $(MOD_SRC_DIR)/$${mod}/build/*.egg-info; \
 		elif [ $$mod = "z9332f" ]; then \
 			rm -f $(MOD_SRC_DIR)/$${mod}/sonic_platform/ipmihelper.py; \
 			rm -f $(MOD_SRC_DIR)/$${mod}/modules/*.whl; \

platform/broadcom/sonic-platform-modules-dell/s5248f/scripts/s5248f_platform.sh

@@ -86,6 +86,20 @@ switch_board_modsel() {
 	done
 }
 
+install_python_api_package() {
+    device="/usr/share/sonic/device"
+    platform=$(/usr/local/bin/sonic-cfggen -H -v DEVICE_METADATA.localhost.platform)
+
+    rv=$(pip3 install $device/$platform/sonic_platform-1.0-py3-none-any.whl)
+}
+
+remove_python_api_package() {
+    rv=$(pip3 show sonic-platform > /dev/null 2>/dev/null)
+    if [ $? -eq 0 ]; then
+        rv=$(pip3 uninstall -y sonic-platform > /dev/null 2>/dev/null)
+    fi
+}
+
 platform_firmware_versions() {
 	FIRMWARE_VERSION_FILE=/var/log/firmware_versions
 	rm -rf ${FIRMWARE_VERSION_FILE}
@@ -146,13 +160,15 @@ if [ "$1" == "init" ]; then
     switch_board_modsel
     switch_board_led_default
     #/usr/bin/qsfp_irq_enable.py
+    install_python_api_package
     platform_firmware_versions
 
 elif [ "$1" == "deinit" ]; then
     sys_eeprom "delete_device"
     switch_board_qsfp "delete_device"
     switch_board_qsfp_mux "delete_device"
 
+    remove_python_api_package
     modprobe -r i2c-mux-pca954x
     modprobe -r i2c-dev
 else

platform/broadcom/sonic-platform-modules-dell/s5248f/setup.py

@@ -0,0 +1,30 @@
+from setuptools import setup
+
+setup(
+    name='sonic-platform',
+    version='1.0',
+    description='SONiC platform API implementation on DellEmc Platforms',
+    license='Apache 2.0',
+    author='SONiC Team',
+    author_email='[email protected]',
+    url='https://github.com/Azure/sonic-buildimage',
+    maintainer='DellEMC',
+    maintainer_email='[email protected]',
+    packages=[
+        'sonic_platform',
+    ],
+    classifiers=[
+        'Development Status :: 3 - Alpha',
+        'Environment :: Plugins',
+        'Intended Audience :: Developers',
+        'Intended Audience :: Information Technology',
+        'Intended Audience :: System Administrators',
+        'License :: OSI Approved :: Apache Software License',
+        'Natural Language :: English',
+        'Operating System :: POSIX :: Linux',
+        'Programming Language :: Python :: 3.7',
+        'Topic :: Utilities',
+    ],
+    keywords='sonic SONiC platform PLATFORM',
+)
+

platform/broadcom/sonic-platform-modules-dell/s5248f/sonic_platform/__init__.py

@@ -0,0 +1,3 @@
+__all__ = ["platform", "chassis", "sfp", "eeprom", "component", "thermal", "psu", "fan", "fan_drawer", "watchdog"]
+from sonic_platform import *
+