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Message-ID: <20221102033247.7aadwbj3fojtpsnh@builder.lan>
Date: Tue, 1 Nov 2022 22:32:47 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Arnaud POULIQUEN <arnaud.pouliquen@...s.st.com>
Cc: Deepak Kumar Singh <quic_deesin@...cinc.com>,
bjorn.andersson@...aro.org, swboyd@...omium.org,
quic_clew@...cinc.com, mathieu.poirier@...aro.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-remoteproc@...r.kernel.org
Subject: Re: [PATCH V3 0/3] rpmsg signaling/flowcontrol patches
On Wed, Sep 14, 2022 at 09:50:48AM +0200, Arnaud POULIQUEN wrote:
> Hi Deepak,
>
> On 9/14/22 07:24, Deepak Kumar Singh wrote:
> > [Changes from V2]:
> > Trivial review comment fixes.
> > Avoid TIOCM_DTR etc signals in glink layer, use native signal macros only.
> > Glink layer to provide only flowcontrol on/off interface, no specific signal passing/receiving to client.
>
>
> Please, could you have a look to my series that implements
> your proposed interface for the virtio rpmsg [1]?
> It would be nice that your API takes into account update to
> support of the rpmsg virtio implementation proposed in [08/10] rpmsg: Add the
> destination address in rpmsg_set_flow_control[2]
>
Your proposal seems reasonable Arnaud, for virtio it makes sense to
provide the destination address in the API as well.
It's a kernel-internal API so we could change it, but let's try to avoid
that by adding the address from the start.
Regards,
Bjorn
> Thanks,
> Arnaud
>
> [1] https://lore.kernel.org/lkml/e54bcfcb-8e37-9caa-b330-a7411820b7ce@foss.st.com/T/
> [2]https://lore.kernel.org/lkml/e54bcfcb-8e37-9caa-b330-a7411820b7ce@foss.st.com/T/#m7340a8e70fb0d8935869c4cef96863abda555c96
>
> >
> > Deepak Kumar Singh (3):
> > rpmsg: core: Add signal API support
> > rpmsg: glink: Add support to handle signals command
> > rpmsg: char: Add TIOCMGET/TIOCMSET ioctl support
> >
> > drivers/rpmsg/qcom_glink_native.c | 63 +++++++++++++++++++++++++++++++++++++++
> > drivers/rpmsg/rpmsg_char.c | 60 ++++++++++++++++++++++++++++++++-----
> > drivers/rpmsg/rpmsg_core.c | 20 +++++++++++++
> > drivers/rpmsg/rpmsg_internal.h | 2 ++
> > include/linux/rpmsg.h | 15 ++++++++++
> > 5 files changed, 152 insertions(+), 8 deletions(-)
> >
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