Re: [PATCH v3 00/12] *** Add support for wifi QMI client driver ***

On 2018-05-08 23:07, Bjorn Andersson wrote:

On Sun 25 Mar 22:37 PDT 2018, Govind Singh wrote:

quoted

Add QMI client driver for Q6 integrated WLAN connectivity subsystem.
This module is responsible for communicating WLAN control messages to 
FW
over QMI interface.

“QUALCOMM Messaging Interface”(QMI) provides the control interface 
between
components running b/w remote processors with underlying transport 
layer
based on integrated chipset(shared memory) or discrete 
chipset(PCI/USB/SDIO/UART).

QMI client driver implementation is based on qmi frmework 
https://lwn.net/Articles/729924/.

Below is the sequence of qmi handshake.

       QMI CLIENT(APPS)                                         QMI 
SERVER(FW in Q6)

                         <------wlan service discoverd----

                       -----connect to wlam qmi service----->

                       ------------wlan info request----->

                       <------------wlan info resp------------

                       ------------msa info req-------->

                     <------------msa info resp------------

                     ------------msa ready req-------->

                     <------------msa ready resp------------

                     <------------msa ready indication-------

                     ------------capability req------->

                    <------------capability resp------------

                    ------------qmi bdf req--------->

                     <------------qmi bdf resp------------

                      ------------qmi cal trigger------->

                  <------------ QMI FW ready indication-------

Does the responsibility of the driver ends here? I mean is this a 
driver
for setting up the firmware and then there's something else doing the
actual wifi operation, or does it simply hand over execution to the
common ath10k logic at this point?

 From wlan qmi client point of view once wlan qmi service is discovered, 
it connects to the service and
does the above handshakes and later it handover the execution to common 
ath10k logic.
These handshakes will be done as part of pd restart as well.

quoted

Govind Singh (12):
  ath10k: Add qmi service for wlan qmi client
  dt: bindings: add bindings for ath10k qmi client
  ath10k: Add WCN3990 QMI client driver
  ath10k: add support to start and stop qmi service
  ath10k: Add support of QMI indication message
  firmware: qcom: scm: Add WLAN VMID for Qualcomm SCM interface
  ath10k: Add MSA handshake QMI mgs support
  ath10k: Add QMI CAP request support
  ath10k: Add QMI HOST CAP request support
  ath10k: add bdf/cal indication support
  ath10k: Add wlan mode on/off qmi message
  ath10k: Add qmi wlan enable/disable support for WCN3990

I'm missing this last patch in my mailbox, and it would be nice if all
the patches where in-reply-to the cover letter, to make them easier to
find.

Regards,
Bjorn

Sure, I will take care this while submitting next version of this patch 
series.

BR,
Govind