The final patch in this series adds a driver shutdown callback for
the IPA driver. The patches leading up to that address some issues
encountered while ensuring that callback worked as expected:
- The first just reports a little more information when channels
or event rings are in unexpected states
- The second patch recognizes a condition where an as-yet-unused
channel does not require a reset during teardown
- The third patch explicitly ignores a certain error condition,
because it can't be avoided, and is harmless if it occurs
- The fourth properly handles requests to retry a channel HALT
request
- The fifth makes a second attempt to stop modem activity during
shutdown if it's busy
The shutdown callback is implemented by calling the existing remove
callback function (reporting if that returns an error).
-Alex
Alex Elder (6):
net: ipa: print channel/event ring number on error
net: ipa: don't reset an ALLOCATED channel
net: ipa: ignore CHANNEL_NOT_RUNNING errors
net: ipa: support retries on generic GSI commands
net: ipa: retry modem stop if busy
net: ipa: add driver shutdown callback
drivers/net/ipa/gsi.c | 101 ++++++++++++++++++++++++++++---------
drivers/net/ipa/gsi.h | 1 +
drivers/net/ipa/ipa_main.c | 19 ++++++-
3 files changed, 94 insertions(+), 27 deletions(-)
--
2.20.1
