From: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
To: Bjorn Andersson <bjorn.andersson@linaro.org>,
Ohad Ben-Cohen <ohad@wizery.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: <linux-remoteproc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<arnaud.pouliquen@foss.st.com>
Subject: [PATCH v3 0/6] Restructure the rpmsg char and introduce the rpmsg-raw channel
Date: Thu, 29 Apr 2021 15:55:01 +0200 [thread overview]
Message-ID: <20210429135507.8264-1-arnaud.pouliquen@foss.st.com> (raw)
Main update from V2 [1]
- Management of the endpoint creation/release to handle it for all the use cases
in the rpmsg_eptdev_open and rpmsg_eptdev_release function
Other patch updates are described at the end of their commit message.
This series can be applied on git/andersson/remoteproc.git
for-next branch (dc0e14fa833b) + "rpmsg: char: Remove useless includes" patch[3].
Series description:
This series is the second step in the division of the series [2]:
"Introducing a Generic IOCTL Interface for RPMsg Channel Management".
The purpose of this patchset is to:
- split the control code related to the control
and the endpoint.
- define the rpmsg-raw channel, associated with the rpmsg char device to
allow it to be instantiated using a name service announcement.
An important point to keep in mind for this patchset is that the concept of
channel is associated with a default endpoint. To facilitate communication
with the remote side, this default endpoint must have a fixed address.
Therefore, for /dev/rpmsgX device created during the instantiation of he "rpmsg-raw"
device, the endpoint creation/release is not dynamically managed on each FS open/close.
This is only applicable for channels probed by the rpmsg bus. The behavior,
using the RPMSG_CREATE_EPT_IOCTL and RPMSG_DESTROY_EPT_IOCTL controls, is preserved.
The next step should be:
Introduce the IOCTLs RPMSG_CREATE_DEV_IOCTL and RPMSG_DESTROY_DEV_IOCTL
to instantiate the rpmsg devices
[1]: https://patchwork.kernel.org/project/linux-remoteproc/list/?series=466357
[2]: https://patchwork.kernel.org/project/linux-remoteproc/list/?series=435523
[3]: https://patchwork.kernel.org/project/linux-remoteproc/patch/20210429080639.6379-1-arnaud.pouliquen@foss.st.com/
Arnaud Pouliquen (6):
rpmsg: char: Export eptdev create an destroy functions
rpmsg: Move the rpmsg control device from rpmsg_char to rpmsg_ctrl
rpmsg: Update rpmsg_chrdev_register_device function
rpmsg: char: Add possibility to create and reuse default endpoint
rpmsg: char: Introduce a rpmsg driver for the rpmsg char device
rpmsg: char: Return error if user tries to destroy a default endpoint.
drivers/rpmsg/Kconfig | 9 ++
drivers/rpmsg/Makefile | 1 +
drivers/rpmsg/qcom_glink_native.c | 2 +-
drivers/rpmsg/qcom_smd.c | 2 +-
drivers/rpmsg/rpmsg_char.c | 223 ++++++++++--------------------
drivers/rpmsg/rpmsg_char.h | 51 +++++++
drivers/rpmsg/rpmsg_ctrl.c | 209 ++++++++++++++++++++++++++++
drivers/rpmsg/rpmsg_internal.h | 8 +-
drivers/rpmsg/virtio_rpmsg_bus.c | 2 +-
9 files changed, 350 insertions(+), 157 deletions(-)
create mode 100644 drivers/rpmsg/rpmsg_char.h
create mode 100644 drivers/rpmsg/rpmsg_ctrl.c
--
2.17.1
next reply other threads:[~2021-04-29 13:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 13:55 Arnaud Pouliquen [this message]
2021-04-29 13:55 ` [PATCH v3 1/6] rpmsg: char: Export eptdev create an destroy functions Arnaud Pouliquen
2021-05-04 15:52 ` Mathieu Poirier
2021-04-29 13:55 ` [PATCH v3 2/6] rpmsg: Move the rpmsg control device from rpmsg_char to rpmsg_ctrl Arnaud Pouliquen
2021-05-04 16:09 ` Mathieu Poirier
2021-04-29 13:55 ` [PATCH v3 3/6] rpmsg: Update rpmsg_chrdev_register_device function Arnaud Pouliquen
2021-05-04 16:14 ` Mathieu Poirier
2021-04-29 13:55 ` [PATCH v3 4/6] rpmsg: char: Add possibility to create and reuse default endpoint Arnaud Pouliquen
2021-04-29 13:55 ` [PATCH v3 5/6] rpmsg: char: Introduce a rpmsg driver for the rpmsg char device Arnaud Pouliquen
2021-05-05 16:41 ` Mathieu Poirier
2021-05-05 18:25 ` Arnaud POULIQUEN
2021-05-06 16:11 ` Mathieu Poirier
2021-05-07 9:30 ` Arnaud POULIQUEN
2021-05-07 16:31 ` Mathieu Poirier
2021-05-17 10:04 ` Arnaud POULIQUEN
2021-05-17 15:47 ` Mathieu Poirier
2021-05-07 8:17 ` Julien Massot
2021-05-07 16:35 ` Mathieu Poirier
2021-04-29 13:55 ` [PATCH v3 6/6] rpmsg: char: Return error if user tries to destroy a default endpoint Arnaud Pouliquen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210429135507.8264-1-arnaud.pouliquen@foss.st.com \
--to=arnaud.pouliquen@foss.st.com \
--cc=bjorn.andersson@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=linux-stm32@st-md-mailman.stormreply.com \
--cc=mathieu.poirier@linaro.org \
--cc=ohad@wizery.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).