Re: [PATCH net-next] qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect

2017-12-15 Thread David Miller
From: Bjørn Mork Date: Thu, 14 Dec 2017 19:55:50 +0100 > It has been reported that the dummy byte we add to avoid > ZLPs can be forwarded by the modem to the PGW/GGSN, and that > some operators will drop the connection if this happens. > > In theory, QMI devices are based on CDC ECM and should a

Re: [PATCH net-next] qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect

2017-12-14 Thread Bjørn Mork
Vamsi Samavedam writes: > On Thu, Dec 14, 2017 at 07:55:50PM +0100, Bjørn Mork wrote: >> It has been reported that the dummy byte we add to avoid >> ZLPs can be forwarded by the modem to the PGW/GGSN, and that >> some operators will drop the connection if this happens. >> >> In theory, QMI devic

Re: [PATCH net-next] qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect

2017-12-14 Thread Vamsi Samavedam
On Thu, Dec 14, 2017 at 07:55:50PM +0100, Bjørn Mork wrote: > It has been reported that the dummy byte we add to avoid > ZLPs can be forwarded by the modem to the PGW/GGSN, and that > some operators will drop the connection if this happens. > > In theory, QMI devices are based on CDC ECM and shoul

[PATCH net-next] qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect

2017-12-14 Thread Bjørn Mork
It has been reported that the dummy byte we add to avoid ZLPs can be forwarded by the modem to the PGW/GGSN, and that some operators will drop the connection if this happens. In theory, QMI devices are based on CDC ECM and should as such both support ZLPs and silently ignore the dummy byte. The l