tree 080861a07264f611fa84cdae8b8b411f58a9b25d
parent 91e784d4582e28bf2e522f1ddfa3f89d0dfb4515
author girik <giridharikrishnan@gmail.com> 1684141217 -0500
committer Jinu Joy Thomas <jinu.joy.thomas@in.ibm.com> 1689689950 +0000

vpd-tool: Flow to read keyword from hardware updated

The commit implements change to check if the offset passed by the user
for a given EEPROM path is equal to the offset if defined for that
EEPROM in inventory JSON.
In case of any mismatch, error message is flagged to the user.

As all EEPROMs are not modelled in inventory JSON file, In order to
handle case where an EEPROM path passed by user is not present in JSON,
check has been added to avoid any exception thrown due to extraction of
inventory path from JSON based on the passed EEPROM path.

Test cases:

CASE1: Trying to read from i2c FRU

/tmp/vpd-tool -r -H -O "/sys/bus/i2c/drivers/at24/8-0050/eeprom" -R VINI -K PN --seek 0x30000
Invalid offset, please correct the offset
Recommended Offset is: 0

/tmp/vpd-tool -r -H -O "/sys/bus/i2c/drivers/at24/8-0050/eeprom" -R VINI -K PN
{
    "/sys/bus/i2c/drivers/at24/8-0050/eeprom": {
        "PN": "00L5521"
    }
}

CASE2: Trying to read from proc and EEPROM not defined in JSON:

/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi22.0/eeprom  -R VINI -K CC
Invalid offset, please correct the offset
Recommended Offset is: 196608

/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi22.0/eeprom  -R VINI -K CC --seek 0x30000
{
    "/sys/bus/spi/drivers/at25/spi22.0/eeprom": {
        "CC": "5C5F"
    }
}
/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi23.0/eeprom  -R VINI -K CC --seek 0x30000
{
    "/sys/bus/spi/drivers/at25/spi23.0/eeprom": {
        "CC": "5C5F"
    }
}

/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi23.0/eeprom  -R VINI -K CC --seek 0x3000
VHDR record not found
Did you provide a valid offset? By default VPD offset is taken as 0. To input offset, use --seek. Refer vpd-tool help.

/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi23.0/eeprom  -R VINI -K CC
VHDR record not found
Did you provide a valid offset? By default VPD offset is taken as 0. To input offset, use --seek. Refer vpd-tool help.

/tmp/vpd-tool -r -H -O /sys/bus/spi/drivers/at25/spi22.0/eeprom  -R VINI -K CC --seek 0x3000
Invalid offset, please correct the offset
Recommended Offset is: 196608

Signed-off-by: Giridhari Krishna <giridharikrishnan@gmail.com>
Change-Id: I246ca983fc75490999f18386bf60e949959d49d2