On Tue, Jun 07, 2022 at 06:16:41PM -0700, Chris Lew wrote: > This series proposes an implementation for the rpmsg framework to do > deferred cleanup of buffers provided in the rx callback. The current > implementation assumes that the client is done with the buffer after > returning from the rx callback. > > In some cases where the data size is large, the client may want to > avoid copying the data in the rx callback for later processing. This > series proposes two new facilities for signaling that they want to > hold on to a buffer after the rx callback. > They are: > - New API rpmsg_rx_done() to tell the rpmsg framework the client is > done with the buffer > - New return codes for the rx callback to signal that the client will > hold onto a buffer and later call rpmsg_rx_done() > > This series implements the qcom_glink_native backend for these new > facilities. > > Chris Lew (4): > rpmsg: core: Add rx done hooks > rpmsg: char: Add support to use rpmsg_rx_done > rpmsg: glink: Try to send rx done in irq > rpmsg: glink: Add support for rpmsg_rx_done > > drivers/rpmsg/qcom_glink_native.c | 112 ++++++++++++++++++++++++++++++-------- > drivers/rpmsg/rpmsg_char.c | 50 ++++++++++++++++- > drivers/rpmsg/rpmsg_core.c | 20 +++++++ > drivers/rpmsg/rpmsg_internal.h | 1 + > include/linux/rpmsg.h | 24 ++++++++ > 5 files changed, 183 insertions(+), 24 deletions(-) I have started reviewing this set. Comments to come later today or tomorrow. Thanks, Mathieu > > -- > 2.7.4 >
