333 lines
12 KiB
ReStructuredText
333 lines
12 KiB
ReStructuredText
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skiboot-5.3.0-rc1
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=================
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skiboot-5.3.0-rc1 was released on Monday July 25th, 2016
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skiboot-5.3.0-rc1 is the first release candidate of skiboot 5.3, which will
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become the new stable release of skiboot following the 5.2 release, first
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released March 16th 2016.
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skiboot-5.3.0-rc1 contains all bug fixes as of skiboot-5.1.16
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and skiboot-5.2.4 (the existing stable releases).
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For how the skiboot stable releases work, see :ref:`stable-rules`.
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The current plan is to release skiboot-5.3.0 August 1st 2016.
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Over skiboot-5.2, we have the following changes:
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OPAL API/Device Tree
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--------------------
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- Reserve OPAL API numbers for XICS emulation for XIVE
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Additionally, we put in some skeleton docs for what's coming,
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key points being that this is for P9 and above, relies on a device
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being present in the device tree and is modelled on the PAPR calls.
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- interrupts: Remove #interrupt-cells from ICP nodes
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- Stop adding legacy linux, phandle to device tree, just add phandle
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No Linux kernel has ever existed for powernv that only knows linux,phandle.
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POWER9
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------
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- Add base POWER9 support
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In *NO WAY* is this geared towards real POWER9 hardware.
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Suitable for use in simulators *only*, and even then, only if you
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intensely know what you're doing.
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- Document changes in OPAL API for POWER9
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Some things are going to change, we start documenting them.
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- cpu: supply ibm,dec-bits via devicetree
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- power9: Add example device tree for phb4
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- device-tree: Only advertise ibm, opal-v3 (not v2) on POWER9 and above
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CAPI
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----
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- phb3: Test CAPI mode on both CAPP units on Naples
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- hmi: Recover both CAPP units on Naples after malfunction alert
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- chiptod: Sync timebase in both CAPP units on Naples
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- phb3: Set CAPI mode for both CAPP units on Naples
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- phb3: Load CAPP ucode to both CAPP units on Naples
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- phb3: Add support for CAPP DMA mode
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The XSL used in the Mellanox CX4 card uses a DMA mode of CAPI, which
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requires a few registers configured specially. This adds a new mode to
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the OPAL_PCI_SET_PHB_CAPI_MODE API to enable CAPI in DMA mode.
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PCI
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---
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- pci: Do a dummy config write to devices to establish bus number
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- phb: Work around XSL bug sending PTE updates with wrong scope
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- Support for PCI hotplug (if a platform supports it)
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Garrison
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--------
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- NVLink/NPU support
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- Full garrison platform support.
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BMC based platforms
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-------------------
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- bt: use the maximum retry count returned by the BMC
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- SEL: Fix eSEL ID while logging eSEL event
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Commit 127a7dac added eSEL ID to SEL event in reverse order (0700 instead
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of 0007). This code fixes this issue by adding ID in proper order.
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Tests/Simulation
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----------------
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- test/hello_world: always use shutdown type zero
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- make check: make test runs less noisy
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- boot-tests: force booting from primary (non-golden) side
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- mambo: Enable multicore configurations
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- mambo: Flatten device tree at the end
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- mambo: Increase memory to 4GB and change memory map
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- Timebase quirk for slow simulators like AWAN and SIMICS
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- chip: Add simics specific quirks
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- mambo: Flash driver using bogus disk
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- platform/mambo: Add a heartbeat time, making console more responsive
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- mambo: Fix bt command and add little endian support
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FSP platforms
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-------------
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- beginnings of support for SPIRA-S structure
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- Handle mbox response with bad status:0x24 during FSP termination
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- FSP: Validate fsp_msg response memory allocation
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- FSP/ELOG: Fix OPAL generated elog event notification
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- FSP/ELOG: Disable event notification during kexec
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Possible crash if error log timing around kexec is unfortunate
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- fsp/console: Ignore data on unresponsive consoles
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Linux kernels from v4.1 onwards will try to request an irq for each hvc
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console using OPAL_EVENT_CONSOLE_INPUT, however because the IRQF_SHARED
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flag is not set any console after the first will fail. If there is data
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on one of these failed consoles OPAL will set OPAL_EVENT_CONSOLE_INPUT
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every time fsp_console_read is called, leading to RCU stalls in the
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kernel.
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As a workaround for unpatched kernels, cease setting
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OPAL_EVENT_CONSOLE_INPUT for consoles that we have noticed are not being
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read.
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HMI
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---
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- hmi: Fix a bug where partial hmi event was reported to host.
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- hmi: Add handling for NPU checkstops
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- hmi: Only raise a catchall HMI if no other components have
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- hmi: Rework HMI event handling of FIR read failure
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Tools
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-----
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- external: Add a getsram command
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The getsram command reads the OCC SRAM. This is useful for debug.
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- bug fixes in flash utilities (pflash/gard)
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- pflash: Allow building under yocto.
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- external/opal-prd: Ensure that struct host_interfaces matches the thunk
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- external/pflash: Handle incorrect cmd-line options better
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- libflash: fix bug on reading truncated flash file
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- pflash: add support for manipulating file rather than flash
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- gard: fix compile error on ARM
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- libflash: Add sanity checks to ffs init code.
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- external: Add dynamically linked pflash
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Mambo
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-----
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- Test device tree for kernel location
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This can reduce the boot time since the kernel no longer needs to
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relocate itself when loaded directly at 0.
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Generic
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-------
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- hw/lpc: Log LPC SYNC errors as OPAL_PLATFORM_ERR_EVT errors
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- Explicitly disable the attn instruction on all CPUs on boot.
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- hw/xscom: Reset XSCOM engine after finite number of retries when busy
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- hw/xscom: Reset XSCOM engine after querying sleeping core FIR
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- core/timer: Add support for platform specific heartbeat
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- Fix GCOV_COUNTERS ifdef logic for GCC 6.0
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- core: Fix backtrace for gcc 6
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fixes a compiler warning on GCC 6 and above
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- cpu: Don't call time_wait with lock held
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Also make the locking around re-init safer, properly block the
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OS from restarting a thread that was caught for re-init.
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- flash: Increase the maximum number of flash devices
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Contributors
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------------
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Extending the analysis done for the last few releases, we can see our trends
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in code review across versions:
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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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5.3-rc1 302 36 53 4 5
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======== ====== ======= ======= ====== ========
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An increase in reviews this cycle is great!
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Detailed statistics for 5.3.0-rc1 are below:
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Processed 302 csets from 31 developers
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A total of 20887 lines added, 4540 removed (delta 16347)
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Developers with the most changesets
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=========================== ============
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=========================== ============
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Stewart Smith 82 (27.2%)
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Gavin Shan 36 (11.9%)
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Benjamin Herrenschmidt 28 (9.3%)
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Michael Neuling 25 (8.3%)
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Vasant Hegde 24 (7.9%)
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Russell Currey 14 (4.6%)
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Brad Bishop 12 (4.0%)
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Vipin K Parashar 10 (3.3%)
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Cédric Le Goater 9 (3.0%)
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Shreyas B. Prabhu 8 (2.6%)
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Jeremy Kerr 7 (2.3%)
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Philippe Bergheaud 6 (2.0%)
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Cyril Bur 5 (1.7%)
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Mukesh Ojha 4 (1.3%)
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Alistair Popple 4 (1.3%)
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Ian Munsie 4 (1.3%)
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Oliver O'Halloran 3 (1.0%)
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Chris Smart 3 (1.0%)
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Sam Mendoza-Jonas 2 (0.7%)
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Joel Stanley 2 (0.7%)
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Dinar Valeev 2 (0.7%)
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Shilpasri G Bhat 2 (0.7%)
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Patrick Williams 2 (0.7%)
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Deb McLemore 1 (0.3%)
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Balbir Singh 1 (0.3%)
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Andrew Donnellan 1 (0.3%)
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Suraj Jitindar Singh 1 (0.3%)
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Frederic Bonnard 1 (0.3%)
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Kamalesh Babulal 1 (0.3%)
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Mamatha 1 (0.3%)
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Mahesh Salgaonkar 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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Benjamin Herrenschmidt 7491 (34.4%)
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Gavin Shan 4821 (22.1%)
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Vasant Hegde 4740 (21.7%)
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Stewart Smith 1294 (5.9%)
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Michael Neuling 620 (2.8%)
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Cédric Le Goater 470 (2.2%)
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Jeremy Kerr 338 (1.6%)
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Shreyas B. Prabhu 330 (1.5%)
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Vipin K Parashar 305 (1.4%)
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Russell Currey 295 (1.4%)
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Alistair Popple 229 (1.1%)
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Philippe Bergheaud 170 (0.8%)
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Ian Munsie 133 (0.6%)
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Dinar Valeev 126 (0.6%)
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Brad Bishop 80 (0.4%)
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Oliver O'Halloran 80 (0.4%)
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Cyril Bur 62 (0.3%)
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Frederic Bonnard 61 (0.3%)
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Sam Mendoza-Jonas 32 (0.1%)
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Chris Smart 27 (0.1%)
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Shilpasri G Bhat 20 (0.1%)
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Patrick Williams 18 (0.1%)
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Suraj Jitindar Singh 17 (0.1%)
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Mamatha 15 (0.1%)
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Mukesh Ojha 8 (0.0%)
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Mahesh Salgaonkar 8 (0.0%)
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Joel Stanley 4 (0.0%)
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Balbir Singh 4 (0.0%)
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Kamalesh Babulal 2 (0.0%)
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Deb McLemore 1 (0.0%)
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Andrew Donnellan 1 (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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Dinar Valeev 68 (1.5%)
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Patrick Williams 10 (0.2%)
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Mukesh Ojha 4 (0.1%)
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Kamalesh Babulal 1 (0.0%)
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========================= ============
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Developers with the most signoffs (total 249)
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========================= ============
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========================= ============
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Stewart Smith 236 (94.8%)
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Vaidyanathan Srinivasan 6 (2.4%)
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Benjamin Herrenschmidt 3 (1.2%)
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Michael Neuling 2 (0.8%)
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Oliver O'Halloran 1 (0.4%)
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Vipin K Parashar 1 (0.4%)
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========================= ============
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Developers with the most reviews (total 53)
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========================= ============
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========================= ============
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Andrew Donnellan 11 (20.8%)
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Russell Currey 9 (17.0%)
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Joel Stanley 7 (13.2%)
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Alistair Popple 7 (13.2%)
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Mukesh Ojha 5 (9.4%)
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Cyril Bur 3 (5.7%)
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Mahesh Salgaonkar 2 (3.8%)
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Gavin Shan 2 (3.8%)
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Vasant Hegde 2 (3.8%)
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Stewart Smith 1 (1.9%)
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Vaidyanathan Srinivasan 1 (1.9%)
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Vipin K Parashar 1 (1.9%)
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Frederic Barrat 1 (1.9%)
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Cédric Le Goater 1 (1.9%)
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========================= ============
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Developers with the most test credits (total 4)
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========================= ============
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========================= ============
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Andrew Donnellan 2 (50.0%)
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Russell Currey 1 (25.0%)
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Vaibhav Jain 1 (25.0%)
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========================= ============
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Developers who gave the most tested-by credits (total 4)
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========================= ============
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========================= ============
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Michael Neuling 3 (75.0%)
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Gavin Shan 1 (25.0%)
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========================= ============
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Developers with the most report credits (total 5)
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========================= ============
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========================= ============
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Mukesh Ojha 2 (40.0%)
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Russell Currey 1 (20.0%)
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Pridhiviraj Paidipeddi 1 (20.0%)
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Balbir Singh 1 (20.0%)
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========================= ============
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Developers who gave the most report credits (total 5)
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========================= ============
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========================= ============
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Gavin Shan 2 (40.0%)
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Stewart Smith 2 (40.0%)
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Vasant Hegde 1 (20.0%)
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========================= ============
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