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skiboot-5.2.0-rc1
=================
skiboot-5.2.0-rc1 was released on Friday Feb 26th, 2016.
skiboot-5.2.0-rc1 is the first release candidate of skiboot 5.2, which will
become the new stable release of skiboot following the 5.1 release, first
released August 17th, 2015.
skiboot-5.2.0-rc1 contains all bug fixes as of skiboot-5.1.13.
This is the second release that will follow the (now documented) Skiboot
stable rules - see :ref:`stable-rules`.
The current plan is to release skiboot-5.2.0 mid-March 2016, with a focus on
bug fixing for future 5.2.0-rc releases.
New Features
^^^^^^^^^^^^
Over skiboot-5.1, the following features have been added:
- Naples (P8', i.e. P8 with NVLINK) processor support, including NVLINK.
- Improvements in gard, libflash/pflash and opal-prd utilities
- increased testing
- increased usability
- systemd scripts for opal-prd
- pflash can now use the /dev/mtd device to access BMC flash rather than
accessing it directly. It is *important* that you use --mtd if your
BMC may otherwise know how to interact with its own flash.
- support for Micron N25Q256Ax and N25Qx256Ax NOR flash.
- support for Winbond W25Q256BV NOR flash
- support for an emulated ("fake") RTC clock, useful in simulators
and during bringup
- Explicit 1:1 mapping in ranges properties have been added to PCI
bridges. This allows a neat trick with offb and VGA ports that should
probably not be told to young children.
- Added support to read the V2 format of the OCC-OPAL memory region,
which supports Workload Optimized Frequency (WOF)
Changes in behavior
^^^^^^^^^^^^^^^^^^^
- Assigning OPAL IDs to PHBs is now fixed and based on the chip id and PHB
index on that chip. On POWER7, we continue to use allocated numbers.
- We now query the BMC for BT capabilities rather than making assumptions
Removed support
^^^^^^^^^^^^^^^
- p5ioc2 is no longer supported.
This affects a grand total of two POWER7 systems in the world.
**NOTE**: It is planned that skiboot-5.2 will be the last release supporting
POWER7 machines.
Bugs fixed
^^^^^^^^^^
- PHB3: Fix unexpected ER (all) on errinjct by PCI config
- hw/bt: timeout messages when BT interface isn't functional
- On Habanero, Slot3 should have been "Slot 3".
- We now completely flush the console buffer before power down and reboot
- For chips with ibm,occ-functional-state set to false, we don't wait
for the OCC to start. This caused needless delay in booting on simulators
which did not simulate OCCs.
- Change OCC reset order to always reset slave OCCs first.
- slw: Remove overwrites for EX_PM_CORE_ECO_VRET and EX_PM_CORE_PFET_VRET
(these were already initialized in hostboot)
- p8-i2c: send stop bit on timeouts.
Some devices can otherwise leave the bus in a held state.
Other improvements
^^^^^^^^^^^^^^^^^^
- many fixes of compiler and static analysis warnings
- increased unit test coverage
- Unit test of "boot debian jessie installer"
- ability to plug in other simulators to run existing tests (e.g. simulator for
non pegasus p8)
- Support using (patched) Qemu with PowerNV platform support for running
unit tests.
- increased support for running with sparse
- We now build with -fstack-protector-strong if supported by the compiler
- We now build with -Werror for -Wformat
- pflash is now built as part of travis-ci and for Coverity Scan.
- There is now a RPM SPEC file that can be used as the basis for packaging
skiboot and associated utilities.
Contributors
------------
We have had a number of improvements in workflow over skiboot-5.1.0. Looking
back, we have roughly the same number of changesets (372 for 5.1.0, 334 for
5.2.0-rc1 - even closer for 5.1.0-beta1) which indicates a relatively stable
rate of development.
Complete statistics are included below (generated by gitdm), but I'd like to
draw attention to a couple of stats:
======== ====== ======= ======= ====== ========
Release csets Ack Reviews Tested Reported
======== ====== ======= ======= ====== ========
5.0 329 15 20 1 0
5.1 372 13 38 1 4
5.2-rc1 334 20 34 6 11
======== ====== ======= ======= ====== ========
Overall, it looks like we're on the right trajectory for increasing the number
of eyeballs looking at code before it heads in tree, especially around testing.
Largely, this increase in Tested-by can be attributed to encouraging the
existing test teams to start commenting on the patches themselves.
Anyway, here's the full stats from skiboot 5.1.0 to 5.2.0-rc1:
Processed 334 csets from 27 developers
2 employers found
A total of 46172 lines added, 23274 removed (delta 22898)
Developers with the most changesets
========================== ===========
========================== ===========
Stewart Smith 146 (43.7%)
Cyril Bur 52 (15.6%)
Benjamin Herrenschmidt 15 (4.5%)
Joel Stanley 12 (3.6%)
Gavin Shan 12 (3.6%)
Alistair Popple 10 (3.0%)
Vasant Hegde 10 (3.0%)
Michael Neuling 10 (3.0%)
Russell Currey 9 (2.7%)
Cédric Le Goater 8 (2.4%)
Jeremy Kerr 8 (2.4%)
Samuel Mendoza-Jonas 6 (1.8%)
Neelesh Gupta 6 (1.8%)
Shilpasri G Bhat 4 (1.2%)
Oliver O'Halloran 4 (1.2%)
Mahesh Salgaonkar 4 (1.2%)
Vipin K Parashar 3 (0.9%)
Daniel Axtens 3 (0.9%)
Andrew Donnellan 2 (0.6%)
Philippe Bergheaud 2 (0.6%)
Ananth N Mavinakayanahalli 2 (0.6%)
Vaibhav Jain 1 (0.3%)
Sam Mendoza-Jonas 1 (0.3%)
Adriana Kobylak 1 (0.3%)
Shreyas B. Prabhu 1 (0.3%)
Vaidyanathan Srinivasan 1 (0.3%)
Ian Munsie 1 (0.3%)
========================== ===========
Developers with the most changed lines
========================== =============
========================== =============
Stewart Smith 19533 (39.4%)
Oliver O'Halloran 17920 (36.1%)
Alistair Popple 3285 (6.6%)
Daniel Axtens 2154 (4.3%)
Cyril Bur 2028 (4.1%)
Benjamin Herrenschmidt 941 (1.9%)
Neelesh Gupta 434 (0.9%)
Gavin Shan 294 (0.6%)
Russell Currey 261 (0.5%)
Vasant Hegde 245 (0.5%)
Cédric Le Goater 209 (0.4%)
Vipin K Parashar 155 (0.3%)
Shilpasri G Bhat 153 (0.3%)
Joel Stanley 140 (0.3%)
Vaidyanathan Srinivasan 135 (0.3%)
Michael Neuling 111 (0.2%)
Samuel Mendoza-Jonas 81 (0.2%)
Jeremy Kerr 60 (0.1%)
Mahesh Salgaonkar 58 (0.1%)
Vaibhav Jain 50 (0.1%)
Ananth N Mavinakayanahalli 43 (0.1%)
Shreyas B. Prabhu 17 (0.0%)
Sam Mendoza-Jonas 12 (0.0%)
Andrew Donnellan 10 (0.0%)
Ian Munsie 8 (0.0%)
Philippe Bergheaud 6 (0.0%)
Adriana Kobylak 6 (0.0%)
========================== =============
Developers with the most lines removed
========================= =============
========================= =============
Daniel Axtens 2149 (9.2%)
Shreyas B. Prabhu 17 (0.1%)
Andrew Donnellan 9 (0.0%)
Vipin K Parashar 2 (0.0%)
========================= =============
Developers with the most signoffs (total 190)
========================= =============
========================= =============
Stewart Smith 188 (98.9%)
Gavin Shan 1 (0.5%)
Neelesh Gupta 1 (0.5%)
========================= =============
Developers with the most reviews (total 34)
========================= =============
========================= =============
Patrick Williams 5 (14.7%)
Joel Stanley 5 (14.7%)
Cédric Le Goater 5 (14.7%)
Vasant Hegde 4 (11.8%)
Alistair Popple 4 (11.8%)
Sam Mendoza-Jonas 3 (8.8%)
Samuel Mendoza-Jonas 3 (8.8%)
Andrew Donnellan 2 (5.9%)
Cyril Bur 2 (5.9%)
Vaibhav Jain 1 (2.9%)
========================= =============
Developers with the most test credits (total 6)
========================= =============
========================= =============
Vipin K Parashar 3 (50.0%)
Vaibhav Jain 2 (33.3%)
Gajendra B Bandhu1 1 (16.7%)
========================= =============
Developers who gave the most tested-by credits (total 6)
=========================== =============
=========================== =============
Gavin Shan 2 (33.3%)
Ananth N Mavinakayanahalli 2 (33.3%)
Alistair Popple 1 (16.7%)
Stewart Smith 1 (16.7%)
=========================== =============
Developers with the most report credits (total 11)
========================= =============
========================= =============
Vaibhav Jain 2 (18.2%)
Paul Nguyen 2 (18.2%)
Alistair Popple 1 (9.1%)
Cédric Le Goater 1 (9.1%)
Aneesh Kumar K.V 1 (9.1%)
Dionysius d. Bell 1 (9.1%)
Pradeep Ramanna 1 (9.1%)
John Walthour 1 (9.1%)
Benjamin Herrenschmidt 1 (9.1%)
========================= =============
Developers who gave the most report credits (total 11)
========================= =============
========================= =============
Gavin Shan 6 (54.5%)
Stewart Smith 3 (27.3%)
Samuel Mendoza-Jonas 1 (9.1%)
Shilpasri G Bhat 1 (9.1%)
========================= =============
|
