Re: [PATCH net-next 00/11] bnxt_en: Implement new driver APIs to send FW messages

On Sat, Aug 28, 2021 at 05:58:19PM -0400, Michael Chan wrote:

The current driver APIs to send messages to the firmware allow only one
outstanding message in flight.  There is only one buffer for the firmware
response for each firmware channel.  To send a firmware message, all
callers must take a mutex and it is released after the firmware response
has been read.  This scheme does not allow multiple firmware messages
in flight.  Firmware may take a long time to respond to some messages
(e.g. NVRAM related ones) and this causes the mutex to be held for
a long time, blocking other callers.

This patchset intoduces the new driver APIs to address the above
shortcomings.  All callers are then updated to use the new APIs.

Hi Michael

Does the firmware already support this? Or is a firmware upgrade also
required.

	Andrew