[fwutil]: Update command reference doc: per component FW update. (sonic-net#1708)

Signed-off-by: Nazarii Hnydyn <nazariig@nvidia.com>
What I did
Updated command reference to match fwutil v.2.0.0.0
How I did it
Updated command reference

Author: nazariig

doc/Command-Reference.md

@@ -5889,22 +5889,86 @@ Go Back To [Beginning of the document](#) or [Beginning of this section](#pfc-wa
 
 ### Platform Component Firmware show commands
 
-**show platform firmware**
+**show platform firmware status**
 
 This command displays platform components firmware status information.
 
 - Usage:
 ```bash
-show platform firmware
+show platform firmware status
 ```
 
 - Example:
 ```bash
-admin@sonic:~$ show platform firmware
+admin@sonic:~$ sudo show platform firmware status
 Chassis    Module    Component    Version                  Description
----------  --------  -----------  -----------------------  ---------------------------------------
-Chassis1   N/A       BIOS         0ACLH004_02.02.007_9600  BIOS - Basic Input/Output System
-                     CPLD         5.3.3.1                  CPLD - includes all CPLDs in the switch
+---------  --------  -----------  -----------------------  ----------------------------------------
+MSN3800    N/A       ONIE         2020.11-5.2.0022-9600    ONIE - Open Network Install Environment
+                     SSD          0202-000                 SSD - Solid-State Drive
+                     BIOS         0ACLH004_02.02.008_9600  BIOS - Basic Input/Output System
+                     CPLD1        CPLD000120_REV0900       CPLD - Complex Programmable Logic Device
+                     CPLD2        CPLD000165_REV0500       CPLD - Complex Programmable Logic Device
+                     CPLD3        CPLD000166_REV0300       CPLD - Complex Programmable Logic Device
+                     CPLD4        CPLD000167_REV0100       CPLD - Complex Programmable Logic Device
+```
+
+**show platform firmware updates**
+
+This command displays platform components firmware updates information.
+
+- Usage:
+```bash
+show platform firmware updates [-i|--image]
+```
+
+- Options:
+  - _-i|--image_: show updates using current/next SONiC image
+
+    Valid values:
+    - current
+    - next
+
+    Default:
+    - current
+
+- Example:
+```bash
+admin@sonic:~$ sudo show platform firmware updates
+Chassis    Module    Component    Firmware                                    Version (Current/Available)                        Status
+---------  --------  -----------  ------------------------------------------  -------------------------------------------------  ------------------
+MSN3800    N/A       ONIE         /usr/local/lib/firmware/mellanox/onie.bin   2020.11-5.2.0022-9600 / 2020.11-5.2.0024-9600      update is required
+                     SSD          /usr/local/lib/firmware/mellanox/ssd.bin    0202-000 / 0204-000                                update is required
+                     BIOS         /usr/local/lib/firmware/mellanox/bios.bin   0ACLH004_02.02.008_9600 / 0ACLH004_02.02.010_9600  update is required
+                     CPLD1        /usr/local/lib/firmware/mellanox/cpld.mpfa  CPLD000120_REV0900 / CPLD000120_REV0900            up-to-date
+                     CPLD2        /usr/local/lib/firmware/mellanox/cpld.mpfa  CPLD000165_REV0500 / CPLD000165_REV0500            up-to-date
+                     CPLD3        /usr/local/lib/firmware/mellanox/cpld.mpfa  CPLD000166_REV0300 / CPLD000166_REV0300            up-to-date
+                     CPLD4        /usr/local/lib/firmware/mellanox/cpld.mpfa  CPLD000167_REV0100 / CPLD000167_REV0100            up-to-date
+```
+
+- Note:
+  - current/next values for _-i|--image_ are taken from `sonic-installer list`
+  ```bash
+  admin@sonic:~$ sudo sonic-installer list
+  Current: SONiC-OS-202012.0-fb89c28c9
+  Next: SONiC-OS-201911.0-2bec3004e
+  Available:
+  SONiC-OS-202012.0-fb89c28c9
+  SONiC-OS-201911.0-2bec3004e
+  ```
+
+**show platform firmware version**
+
+This command displays platform components firmware utility version.
+
+- Usage:
+```bash
+show platform firmware version
+```
+
+- Example:
+```bash
+admin@sonic:~$ show platform firmware version
+fwutil version 2.0.0.0
 ```
 
 ### Platform Component Firmware config commands
@@ -5920,30 +5984,35 @@ config platform firmware install chassis component <component_name> fw <fw_path>
 config platform firmware install module <module_name> component <component_name> fw <fw_path> [-y|--yes]
 ```
 
+- Options:
+  - _-y|--yes_: automatic yes to prompts. Assume "yes" as answer to all prompts and run non-interactively
+
 - Example:
 ```bash
-admin@sonic:~$ sudo config platform firmware install chassis component BIOS fw /etc/mlnx/fw/sn3800/chassis1/bios.bin
+admin@sonic:~$ sudo config platform firmware install chassis component BIOS fw /usr/local/lib/firmware/mellanox/sn3800/chassis1/bios.bin
+Warning: Immediate cold reboot is required to complete BIOS firmware update.
 New firmware will be installed, continue? [y/N]: y
 Installing firmware:
-    /etc/mlnx/fw/sn3800/chassis1/bios.bin
+    /usr/local/lib/firmware/mellanox/sn3800/chassis1/bios.bin
 
-admin@sonic:~$ sudo config platform firmware install module Module1 component BIOS fw http://mellanox.com/fw/sn3800/module1/bios.bin
+admin@sonic:~$ sudo config platform firmware install module Module1 component BIOS fw https://www.mellanox.com/fw/sn3800/module1/bios.bin
+Warning: Immediate cold reboot is required to complete BIOS firmware update.
 New firmware will be installed, continue? [y/N]: y
 Downloading firmware:
     [##################################################]  100%
 Installing firmware:
     /tmp/bios.bin
 ```
 
-Supported options:
-1. -y|--yes - automatic yes to prompts. Assume "yes" as answer to all prompts and run non-interactively
+- Note:
+  - <fw_path> can be absolute path or URL
 
 **config platform firmware update**
 
-This command is used for automatic FW update of all available platform components.  
+This command is used to update a platform component firmware from current/next SONiC image.  
 Both modular and non modular chassis platforms are supported.
 
-Automatic FW update requires `platform_components.json` to be created and placed at:  
+FW update requires `platform_components.json` to be created and placed at:  
 sonic-buildimage/device/<platform_name>/<onie_platform>/platform_components.json
 
 Example:
@@ -5954,19 +6023,16 @@ Example:
         "Chassis1": {
             "component": {
                 "BIOS": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/bios.bin",
-                    "version": "0ACLH003_02.02.010",
-                    "info": "Cold reboot is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/bios.bin",
+                    "version": "<bios_version>"
                 },
                 "CPLD": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/cpld.bin",
-                    "version": "10",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/cpld.bin",
+                    "version": "<cpld_version>"
                 },
                 "FPGA": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/fpga.bin",
-                    "version": "5",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/fpga.bin",
+                    "version": "<fpga_version>"
                 }
             }
         }
@@ -5981,19 +6047,16 @@ Example:
         "Chassis1": {
             "component": {
                 "BIOS": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/bios.bin",
-                    "version": "0ACLH003_02.02.010",
-                    "info": "Cold reboot is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/bios.bin",
+                    "version": "<bios_version>"
                 },
                 "CPLD": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/cpld.bin",
-                    "version": "10",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/cpld.bin",
+                    "version": "<cpld_version>"
                 },
                 "FPGA": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/chassis1/fpga.bin",
-                    "version": "5",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/chassis1/fpga.bin",
+                    "version": "<fpga_version>"
                 }
             }
         }
@@ -6002,51 +6065,64 @@ Example:
         "Module1": {
             "component": {
                 "CPLD": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/module1/cpld.bin",
-                    "version": "10",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/module1/cpld.bin",
+                    "version": "<cpld_version>"
                 },
                 "FPGA": {
-                    "firmware": "/etc/<platform_name>/fw/<onie_platform>/module1/fpga.bin",
-                    "version": "5",
-                    "info": "Power cycle is required"
+                    "firmware": "/usr/local/lib/firmware/<platform_name>/<onie_platform>/module1/fpga.bin",
+                    "version": "<fpga_version>"
                 }
             }
         }
     }
 }
 ```
 
-Note: FW update will be skipped if component definition is not provided (e.g., 'BIOS': { })
-
 - Usage:
 ```bash
-config platform firmware update [-y|--yes] [-f|--force] [-i|--image=current|next]
+config platform firmware update chassis component <component_name> fw [-y|--yes] [-f|--force] [-i|--image]
+config platform firmware update module <module_name> component <component_name> fw [-y|--yes] [-f|--force] [-i|--image]
 ```
 
+- Options:
+  - _-y|--yes_: automatic yes to prompts. Assume "yes" as answer to all prompts and run non-interactively
+  - _-f|--force_: update FW regardless the current version
+  - _-i|--image_: update FW using current/next SONiC image
+
+    Valid values:
+    - current
+    - next
+
+    Default:
+    - current
+
 - Example:
 ```bash
-admin@sonic:~$ sudo config platform firmware update
-Chassis    Module    Component    Firmware                               Version                                            Status              Info
----------  --------  -----------  -------------------------------------  -------------------------------------------------  ------------------  -----------------------
-Chassis1   N/A       BIOS         /etc/mlnx/fw/sn3800/chassis1/bios.bin  0ACLH004_02.02.007_9600 / 0ACLH004_02.02.007_9600  up-to-date          Cold reboot is required
-                     CPLD         /etc/mlnx/fw/sn3800/chassis1/cpld.bin  5.3.3.1 / 5.3.3.2                                  update is required  Power cycle is required
+admin@sonic:~$ sudo config platform firmware update chassis component BIOS fw
+Warning: Immediate cold reboot is required to complete BIOS firmware update.
 New firmware will be installed, continue? [y/N]: y
+Updating firmware:
+    /usr/local/lib/firmware/mellanox/x86_64-mlnx_msn3800-r0/chassis1/bios.bin
 
-Summary:
-
-Chassis    Module    Component    Status
----------  --------  -----------  ----------
-Chassis1   N/A       BIOS         up-to-date
-                     CPLD         success
+admin@sonic:~$ sudo config platform firmware update module Module1 component BIOS fw
+Warning: Immediate cold reboot is required to complete BIOS firmware update.
+New firmware will be installed, continue? [y/N]: y
+Updating firmware:
+    /usr/local/lib/firmware/mellanox/x86_64-mlnx_msn3800-r0/module1/bios.bin
 ```
 
-Supported options:
-1. -y|--yes - automatic yes to prompts. Assume "yes" as answer to all prompts and run non-interactively
-2. -f|--force - install FW regardless the current version
-3. -i|--image - update FW using current/next SONiC image
-
-Note: the default option is --image=current (current/next values are taken from `sonic-installer list`)
+- Note:
+  - FW update will be disabled if component definition is not provided (e.g., 'BIOS': { })
+  - FW version will be read from image if `version` field is not provided
+  - current/next values for _-i|--image_ are taken from `sonic-installer list`
+  ```bash
+  admin@sonic:~$ sudo sonic-installer list
+  Current: SONiC-OS-202012.0-fb89c28c9
+  Next: SONiC-OS-201911.0-2bec3004e
+  Available:
+  SONiC-OS-202012.0-fb89c28c9
+  SONiC-OS-201911.0-2bec3004e
+  ```
 
 ### Platform Component Firmware vendor specific behaviour