These set of patches add few improvements to iotrace.
* Region limiting - allows setting an address and size where only
io operations that falls into that
address are
logged.
* Timestamping - Timestamp every iotrace record with current timestamp
* dumping - iotrace dump command for dumping all records from buffer
in a readable fashion.
In terms of backwards compatibility, the timestamp is not backward
compatible as it changes the iotrace record. so if one developed an
offline parsing tool it will be broken.
I though of adding #ifdef specific for that, but eventually I didn't.
Changes in v5:
- Removed common.h include that caused werid compliation problems
in other boards (trini)
- Fixed portability issue in printf (trini)
Changes in v4:
- Resend complete patchset with patman
Changes in v3:
- fixed wrong usage of WARN_ONCE
Changes in v2:
- introduced needed_size to notify the user about the needed buffer size.
Changes in v1:
- Change timestamp function to get_ticks()
Ramon Fried (6):
cmd: iotrace: add set region command
iotrace: add IO region limit
common: iotrace: add timestamp to iotrace records
iotrace: move record definitons to header file
cmd: iotrace: add dump trace command
iotrace: fix behaviour when buffer is full
cmd/iotrace.c | 63 ++++++++++++++++++++++++++++++++++++++++++---
common/iotrace.c | 65 +++++++++++++++++++++++++++--------------------
include/iotrace.h | 57 +++++++++++++++++++++++++++++++++++++++--
3 files changed, 153 insertions(+), 32 deletions(-)
--
2.17.1
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