[Skiboot] [PATCH V7 00/12] ELOG generalization

[Mukesh Ojha]

Currently, in the process of committing an error from OPAL to FSP, log
info is first internally converted to PEL format. Then all the errors
reported by OPAL are logged to FSP. So, all the errors logs
(FSP logs + OPAL logs) FSP sends back to host via OPAL. If for some reason
(say FSP is down) OPAL is not able to log its error to FSP within a
particular time, then it sends the log to the host directly.

This patchset improves current error log infrastructure by splitting
existing FSP specific error log read/write routines into common and
hardware(FSP) specific routines. This would make the way easier in
enabling the error log writing to host support for BMC and other
platforms.

It involves movement of some functions from FSP specific fsp-elog-write.c
and fsp-elog-read.c files to core/errorlog.c . Introduction of platform
hooks for elog info, ack, read and resend pending logs.

This patchset removes redundant code like 'elog_enabled' check and
'elog_reject_head()' routine in some of the places which will elaborated
in the individual patch.

It replaces elog_init() usage with opal_elog_init().

Mukesh Ojha (12):
  errorlog : Modification as per coding guidelines to make the code more
    legible
  errorlog: Remove the elog enable check from
    'fsp_elog_check_and_fetch_head'
  errorlog: Removal of elog_reject_head() from 'opal_kexec_elog_notify'
    routine
  errorlog: Generalize the error log write path to host
  errorlog: Give function 'fsp_elog_write_set_head_state' a more
    meaningful name
  errorlog: Generalize the error log read path
  errorlog: Rename 'fsp_log_state' to 'sp_log_state'
  errorlog: Introduce get and put elog routine and reference count field
    in elog structure
  errorlog: Replace elog_init() with opal_elog_init() for QEMU platform
  errorlog: Remove the usage of 'elog_init()' routine, replaces it with
    'opal_elog_init()' for BMC systems
  errorlog: Enable error log write to host on BMC systems
  errorlog: Add generic elog write interface

 core/errorlog.c             | 313 +++++++++++++++++++++++++++++++++++++++++---
 core/init.c                 |   4 +
 hw/fsp/fsp-elog-read.c      | 238 ++++++++++++---------------------
 hw/fsp/fsp-elog-write.c     | 260 +++++++-----------------------------
 hw/ipmi/ipmi-sel.c          |  90 ++++++++-----
 include/errorlog.h          |  22 +++-
 include/fsp-elog.h          |  37 ++----
 include/platform.h          |  25 +++-
 platforms/astbmc/common.c   |   3 +-
 platforms/ibm-fsp/apollo.c  |   7 +-
 platforms/ibm-fsp/common.c  |   1 +
 platforms/ibm-fsp/firenze.c |   7 +-
 platforms/qemu/qemu.c       |   2 -
 13 files changed, 551 insertions(+), 458 deletions(-)

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2.7.4