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diff --git a/roms/skiboot/doc/release-notes/skiboot-5.1.0.rst b/roms/skiboot/doc/release-notes/skiboot-5.1.0.rst new file mode 100644 index 000000000..d7e65792e --- /dev/null +++ b/roms/skiboot/doc/release-notes/skiboot-5.1.0.rst @@ -0,0 +1,367 @@ +.. _skiboot-5.1.0: + +skiboot-5.1.0 +============= + +skiboot-5.1.0 was released on August 17th, 2015. + +skiboot-5.1.0 is the first stable release of 5.1.0 following two beta releases. +This new stable release replaces skiboot-5.0 as the current stable skiboot +release (5.0 was released April 14th 2015). + +Skiboot 5.1.0 contains all fixes from skiboot-5.0 stable branch up to +skiboot-5.0.5 and everything from 5.1.0-beta1 and 5.1.0-beta2. + +Over skiboot-5.1.0-beta2, we have the following changes: + +- opal_prd now supports multiple socket systems +- fix compiler warnings in gard and libflash + +Below are the changes introduced in previous skiboot-5.1.0 releases over +the previous stable release, skiboot-5.0: + +New features +^^^^^^^^^^^^ + +- Add Naples chip (CPU, PHB, LPC serial interrupts) support +- Added qemu platform +- improvements to FSI error handling +- improvements in chip TOD failover (some only on FSP systems) +- Set Relative Priority Register (RPR) to recommended value + + - this affects thread priority in SMT modes + +- greatly reduce memory consumption by CPU stacks for non-present CPUs + + - Previously we would reserve enough memory for max PIR for each CPU + type. + - This fix frees up 77MB of RAM on a typical P8 system. + +- increased OPAL API documentation +- Asynchronous preloading of resources from FSP/flash + + - improves boot time on some systems + +- Basic Garrison platform support +- Add Mambo platform (P8 Functional Simulator, systemsim) + + - includes fake NVRAM, RTC + +- Support building with GCOV, increasing memory for skiboot binary to 2MB + + - includes boot code coverage testing + +- Increased skiboot HEAP size. + + - We are not aware of any system where you would run out, but on large + systems it was getting closer than we liked. + +- add boot_tests.sh for helping automate boot testing on FSP and BMC machines +- Versioning of pflash and gard utilities to help Linux (or other OS) + distributions with packaging. +- OCC throttle status messages to host +- CAPP timebase sync ("ibm,capp-timebase-sync" in DT to indicate CAPP timebase + was synced by OPAL) +- opal-api: Add OPAL call to handle abnormal reboots. + +``OPAL_CEC_REBOOT2`` currently supports two reboot types: + + 0. normal reboot, that will behave similar to that of opal_cec_reboot() call + 1. platform error reboot. + +Long term, this is designed to replace OPAL_CEC_REBOOT. + +New features for FSP based machines +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +- in-band IPMI support +- ethernet adaptor location codes +- add DIMM frequency information to device tree +- improvements in FSP error log code paths +- fix some boot time memory leaks + + - harmless to end user + +New features for AMI BMC based machines +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +- PCIe power workaround for K80 +- Added support for Macronix 128Mbit flash chips +- Initial PRD support for Firestone platform +- improved reliability when BMC reboots + +The following bugs have been fixed +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +- Increase PHB3 timeout for electrical links coming up to 2 seconds. + + - fixes issues with some Mellanox cards + +- Hang in opal_reinit_cpus() that could prevent kdump from functioning +- PHB3: fix crash in phb3_init +- PHB3: fix crash with fenced PHB in phb3_init_hw() +- Fix bugs in hw/bt.c (interface for IPMI on BMC machines) that could possibly + lead to a crash (dereferencing invalid address, deadlock) +- ipmi/sel: fix use-after-free +- Bug fixes in EEH handling + + - opal_pci_next_error() cleared OPAL_EVENT_PCI_ERROR unconditionally, + possibly leading to missed errors. + +- external/opal-prd: Only map each PRD range once + + - could eventually lead to failing to map PRD ranges + +- On skiboot crash, don't try to print symbol when we didn't find one + + - makes backtrace prettier + +- On skiboot crash, dump hssr0 and hsrr1 registers correctly. +- Better support old and biarch compilers + + - test "new" compiler flags before using them + - Specify -mabi=elfv1 if supported (which means it's needed) + +- fix boot-coverage-report makefile target +- ipmi: Fix the opal_ipmi_recv() call to handle the error path + +- Could make kernel a sad panda when in continues with other IPMI commands +- IPMI: truncate SELs at 2kb + + - it's the limit of the astbmc. We think. + +- IPMI/SEL/PEL: + + - As per PEL spec, we should log events with severity >= 0x22 and "service + action flag" is "on". But in our case, all logs OPAL originagted logs + are makred as report externally. + We now only report logs with severity >= 0x22 + +- IPMI: fixes to eSEL logging +- hw/phb3: Change reserved PE to 255 + + - Currently, we have reserved PE#0 to which all RIDs are mapped prior + to PE assignment request from kernel. The last M64 BAR is configured + to have shared mode. So we have to cut off the first M64 segment, + which corresponds to reserved PE#0 in kernel. If the first BAR + (for example PF's IOV BAR) requires huge alignment in kernel, we + have to waste huge M64 space to accommodate the alignment. If we + have reserved PE#256, the waste of M64 space will be avoided. + +FSP-specific bugs fixed +^^^^^^^^^^^^^^^^^^^^^^^ +- (also fixed in skiboot-5.0.2) Fix race in firenze_get_slot_info() leading to + assert() with many PCI cards + + With many PCI cards, we'd hit a race where calls to + firenze_add_pcidev_to_fsp_inventory would step on each other leading to + memory corruption and finally an assert() in the allocator being hit + during boot. + +- PCIe power workaround for K80 cards +- /ibm,opal/led renamed to /ibm,opal/leds in Device Tree + + - compatible change as no FSP based systems shipped with skiboot-5.0 + +General improvements +^^^^^^^^^^^^^^^^^^^^ +- Preliminary Centaur i2c support + + - lays framework for supporting Centaur i2c + +- don't run pollers on non-boot CPUs in time_wait +- improvements to opal-prd, pflash, libflash + + - including new blocklevel interface in libflash + +- many minor fixes to issues found by static analysis +- improvements in FSP error log code paths +- code cleanup in memory allocator +- Don't expose individual nvram partitions in the device tree, just the whole + flash device. +- build improvements for building on ppc64el host +- improvements in cpu_relax() for idle threads, needed for GCOV on large + machines. +- Optimized memset() for POWER8, greatly reducing number of instructions + executed for boot, which helps boot time in simulators. +- Major improvements in hello_world kernel + + - Bloat of huge 17 instruction test case reduced to 10. + +- Disable bust_locks for general calls of abort() + + - Should enable better error messages during abort() when other users of + LPC bus exist (e.g. flash) + +- unified version numbers for bundled utilities +- external/boot_test/boot_test.sh + + - better usable for automated boot testing + +Contributors +------------ +Since skiboot-5.0, we've had the following changesets: + +Processed 372 csets from 27 developers +2 employers found +A total of 15868 lines added, 3359 removed (delta 12509) + +Developers with the most changesets + +========================== ============= +Developer Changesets +========================== ============= +Stewart Smith 117 (31.5%) +Jeremy Kerr 37 (9.9%) +Cyril Bur 33 (8.9%) +Vasant Hegde 32 (8.6%) +Benjamin Herrenschmidt 32 (8.6%) +Kamalesh Babulal 22 (5.9%) +Joel Stanley 12 (3.2%) +Mahesh Salgaonkar 12 (3.2%) +Alistair Popple 12 (3.2%) +Neelesh Gupta 9 (2.4%) +Gavin Shan 8 (2.2%) +Cédric Le Goater 8 (2.2%) +Ananth N Mavinakayanahalli 8 (2.2%) +Vipin K Parashar 6 (1.6%) +Michael Neuling 6 (1.6%) +Samuel Mendoza-Jonas 3 (0.8%) +Frederic Bonnard 3 (0.8%) +Andrew Donnellan 2 (0.5%) +Vaidyanathan Srinivasan 2 (0.5%) +Philippe Bergheaud 1 (0.3%) +Shilpasri G Bhat 1 (0.3%) +Daniel Axtens 1 (0.3%) +Hari Bathini 1 (0.3%) +Michael Ellerman 1 (0.3%) +Andrei Warkentin 1 (0.3%) +Dan Horák 1 (0.3%) +Anton Blanchard 1 (0.3%) +========================== ============= + + +Developers with the most changed lines + +========================== ============ +========================== ============ +Stewart Smith 4499 (27.3%) +Benjamin Herrenschmidt 3782 (22.9%) +Jeremy Kerr 1887 (11.4%) +Cyril Bur 1654 (10.0%) +Vasant Hegde 959 (5.8%) +Mahesh Salgaonkar 886 (5.4%) +Neelesh Gupta 473 (2.9%) +Samuel Mendoza-Jonas 387 (2.3%) +Vipin K Parashar 332 (2.0%) +Philippe Bergheaud 171 (1.0%) +Shilpasri G Bhat 165 (1.0%) +Alistair Popple 151 (0.9%) +Joel Stanley 105 (0.6%) +Cédric Le Goater 89 (0.5%) +Gavin Shan 83 (0.5%) +Frederic Bonnard 76 (0.5%) +Kamalesh Babulal 65 (0.4%) +Michael Neuling 46 (0.3%) +Daniel Axtens 31 (0.2%) +Andrew Donnellan 22 (0.1%) +Ananth N Mavinakayanahalli 20 (0.1%) +Anton Blanchard 3 (0.0%) +Vaidyanathan Srinivasan 2 (0.0%) +Hari Bathini 2 (0.0%) +Michael Ellerman 1 (0.0%) +Andrei Warkentin 1 (0.0%) +Dan Horák 1 (0.0%) +========================== ============ + +Developers with the most lines removed + +=========================== ============ +=========================== ============ +Michael Neuling 24 (0.7%) +Hari Bathini 1 (0.0%) +=========================== ============ + +Developers with the most signoffs (total 253) + +=========================== ============ +=========================== ============ +Stewart Smith 249 (98.4%) +Mahesh Salgaonkar 4 (1.6%) +=========================== ============ + +Developers with the most reviews (total 24) + +=========================== ============ +=========================== ============ +Vasant Hegde 9 (37.5%) +Joel Stanley 3 (12.5%) +Gavin Shan 2 (8.3%) +Kamalesh Babulal 2 (8.3%) +Samuel Mendoza-Jonas 2 (8.3%) +Alistair Popple 2 (8.3%) +Stewart Smith 1 (4.2%) +Andrei Warkentin 1 (4.2%) +Preeti U Murthy 1 (4.2%) +Ananth N Mavinakayanahalli 1 (4.2%) +=========================== ============ + +Developers with the most test credits (total 1) + +=========================== ============ +=========================== ============ +Chad Larson 1 (100.0%) +=========================== ============ + +Developers who gave the most tested-by credits (total 1) + +=========================== ============ +=========================== ============ +Gavin Shan 1 (100.0%) +=========================== ============ + +Developers with the most report credits (total 4) + +=========================== ============ +=========================== ============ +Benjamin Herrenschmidt 2 (50.0%) +Chad Larson 1 (25.0%) +Andrei Warkentin 1 (25.0%) +=========================== ============ + +Developers who gave the most report credits (total 4) + +=========================== ============ +=========================== ============ +Stewart Smith 3 (75.0%) +Gavin Shan 1 (25.0%) +=========================== ============ + +Top changeset contributors by employer + +========================== ============ +========================== ============ +IBM 369 (99.2%) +(Unknown) 3 (0.8%) +========================== ============ + +Top lines changed by employer + +========================= ============== +========================= ============== +IBM 16497 (100.0%) +(Unknown) 3 (0.0%) +========================= ============== + +Employers with the most signoffs (total 253) + +========================= ============= +========================= ============= +IBM 253 (100.0%) +========================= ============= + +Employers with the most hackers (total 27) + +========================= ============ +========================= ============ +IBM 24 (88.9%) +(Unknown) 3 (11.1%) +========================= ============ + |