The get_fru_area_str() function is used to decode FRU area
fields into text. Areas may be encoded as text, binary,
BCDplus or 6-bit ASCII. Decoding of 6-bit ASCII and BCDplus
was broken. There was an error in the formulas used to
calculate the resulting string length, plus the decoding
formulas for BCDplus was wrong.
For BCDplus the resulting length was considered equal
the encoded data length, while in fact it's twice as big.
Only one character instead of two was being extracted from
a single input byte while two nibbles must have been taken
into account.
For 6-bit ASCII rounding of 3 to 4 bytes conversion was done
improperly adding 2 to the original length instead of the
result of multiplication.
PICMG 3.1 R2.0 introduces new a new Link Class field in the FRU
Link Descriptors which is the upper 4 bits of the Link Type field.
This new Link Class field specifies SERDES lanes with 10.3125Gbd
signalling rate.
It also introduces the new Base-KX and Base-KX4 types which are the
new IEEE replacements for the PICMG 3.0 Base-BX and Base-BX4 types.
This patch decodes these new types and fields and will print out
proper descriptions for each one based on PICMG 3.1 R2.0
Targets as a problem with editing FRUs (like ipmitool ....
fru edit 0 field b 0 "blahblah") where the header (multirecord area offset) is
not correctly updated.
It is supposed to modify the header offset to muti-record area if any of
the three previous areas has been edited.
Remark: this has to occur before the new header crc is calculated.
Thats the reson the modification is not close to the actual movement of the
data. Maybe it would be nicer to change the order in the code here. But
I do not want to add undesired behaviour, thus keeping a clear and small
patch.
Editing a fru without resizing it caused the checksum being incorrect and not
being updated. This fix changes this, so the checksum is now being correctly
calculated and written to the right place.
1. Warnings about "FRU Area Length" based on uninitialized (malloc'd) memory
contents (due to fru->max_read_size not being initialized, left at 0) and
fru_data not being zeroed after malloc() in ipmi_fru_set_field_string().
2. "fru edit" commands for any field index other than 0 would fail (with "Field
not found !" error) due to a couple offset and length calculation errors (for
all the supported "area" types) in ipmi_fru_set_field_string().
3. "fru edit" commands would corrupt the FRU Inventory Area due to incorrect
"source offset" value being specified in write_fru_area() call in
impi_fru_set_field_string().
Commit for Rob Swindell
This patch adds basic long message support for PICMG-based systems according to
the HPM.2 specification.
It also introduces APIs for setting inbound and outbound messages sizes per
selected interface.
This APIs are used in LAN and LAN+ interfaces to set autonomously detected
inbound and outbound message sizes.
The newly introduced APIs also replace the existing message size detection code
in several ipmitool commands in order to leverage the advantages of long message
support (HPM.1 upgrade, SDR acquring, FRU inventory read and write).
The Kontron-specific long message support is moved under a OEM option.
Commit for Dmitry Bazhenov
