Planning to add a PCIe(not in USB protocol) device

[王道之]

Hey Aleksander
     The device is basic on the Intel 7560 chip, or L860 in fibocom that
difference the L850 with PCIe in MBIM protocol.
     I am not sure there need a PCIe lib or yet, as now I can use lspci
found the device, and there is a net port with the drive offered by Intel.
And the drive would be open source later time.
     You add the device L850 of Fibocom in the ModemManager early time, and
now the Fibocom want to add the L860 by itself, and I work for Fibocom. So
I am going to add a PCIe L860 in the ModemManager.
    As I planned, I am going to add the L860 in the plugin, then init the
device ports(this may need a lib？)， then init the modem with AT commd.
     About the L860 there is a net port, divided in several ports by VLAN
id. Here is some description:
     *The host driver maps each channel exposed by the modem to an
interface for application to exercise communication over such channels. For
network devices, each IP session  (0  to 7) is mapped to INM network
interfaces (INM0 to INM7). Thus "/PCIE/IOSM/IPS/0" will be mapped to INM0,
"/PCIE/IOSM/IPS/1" will be mapped to "/PCIE/IOSM/IPS/1" and so on.
Similarly, "/PCIE/IOSM/CTRL/0" is mapped to RPC device,
"/PCIE/IOSM/TRACE/0" to trace, "/PCIE/IOSM/CTRL/0" and "/PCIE/IOSM/CTRL/2"
to IAT devices and so  on. These  are  internals to PCIe communication and
are transparent  to user-space application.*

*The IOSM host driver exposes the interfaces as a VLAN devices (except
for  flashing  device). Following table lists the interfaces  exposed  by
the host driver. Please  note  that,  not every interface is supported by
the modem. The host driver allows opening of  an  interface only if it is
supported on the modem side.*


Cheers!

Quincy Chen

Aleksander Morgado <aleksander at aleksander.es> 于2018年12月10日周一 下午4:54写道：

> Hey,
>
> >     I am going to add a PCIe not in USB protocol modem device in the
> Modemmanager. In order to better integrate into the current architecture of
> Modemmanager, any development advice?
> >     As I planned, I am going to add the new PCIe device in the plugins
> folder,but I am not sure where to add the PCIe lib just like the libqmi or
> the libmbim.
> >     By the way, I found the comment  Nozomi, Card-Bus PCI (not USB)  at
> the device "Option GT 3G+ EMEA" in the supported devices list , Is  that
> mean the device use the PCI protocol? If in that way, I can refer to when I
> develop.
> >
>
> Is this PCIe library a new one that you're writing?
> What device is this?
>
> Cheers!
>
> --
> Aleksander
> https://aleksander.es
>
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