mboxd: Make window size and number optional command line parameters

The window size and number command line parameters are used to control
the number of windows and the size of each of the windows in the window
cache which the reserved memory region is divided between.

Most people won't care about tuning these or just won't know what they
refer to. Additionally in the event we change how the window cache
works or allow a non-constant window size then the meaning of these
becomes unclear.

Daemon implementations may also choose to just not implement a cache so
making these required parameters may hurt portability.

Make the window size and number command line parameters optional rather
than required so that they can be largly ignored while people who really
care about tuning them can still do so.

The default for now is to have windows of size 1MB and to map the entire
reserved memory region. That is:
number of windows = size of memory region / size of windows

This means that the size of the reserved memory region can be reduced
and the daemon will adapt to this.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Change-Id: I7c7bbef6e5d31d1372ec3a755877cacc6c135cce
3 files changed
tree: 5c25e8ba96c68ea0a7539fc19612ec06b8909455
  1. Documentation/
  2. m4/
  3. .gitignore
  4. bootstrap.sh
  5. common.c
  6. common.h
  7. configure.ac
  8. dbus.h
  9. LICENSE
  10. Makefile.am
  11. mbox.h
  12. mboxctl.c
  13. mboxd.c
  14. mboxd_dbus.c
  15. mboxd_dbus.h
  16. mboxd_flash.c
  17. mboxd_flash.h
  18. mboxd_lpc.c
  19. mboxd_lpc.h
  20. mboxd_msg.c
  21. mboxd_msg.h
  22. mboxd_windows.c
  23. mboxd_windows.h
  24. README.md
README.md

Copyright 2017 IBM

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

MBOX

This repo contains the protocol definition for the host to BMC mailbox communication specification which can be found in Documentation/mbox_procotol.md.

There is also a reference implementation of a BMC mailbox daemon, the details of which can be found in Documentation/mboxd.md.

Finally there is also an implementation of a mailbox daemon control program, the details of which can be found in Documentation/mboxctl.md.