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