On Fri, Nov 14, 2025 at 10:46:38AM -0800, Tanmay Shah wrote: > Take rx and tx buffer size from virtio device config space in the > resource table. This allows each firmware to configure RPMsg buffer size > as needed in each direction. > > Original seris: > https://lore.kernel.org/all/[email protected]/ > > Following modificaitons are done to the original series: > - Separate dma allocation is not done for tx and rx buffers. Instead > allocated chunk of memory is split between tx and rx buffers. > - If vdev doesn't support VIRTIO_RPMSG_F_BUFSZ feature then use the > default size of 512 bytes for buffers > - Change MAX_RPMSG_BUF_SIZE to DEFAULT_RPMSG_BUF_SIZE > - move virtio_rpmsg.h from uapi to linux dir > - RPMsg buffer size must be set to hold rpmsg header at minimum in the > vdev config space of the firmware. > - align total buf size to page size when allocating and deallocating > memory > > Xiang Xiao (2): > rpmsg: virtio_rpmsg_bus: allow the different vring size for send/recv > rpmsg: virtio_rpmsg_bus: get buffer size from config space > > drivers/rpmsg/virtio_rpmsg_bus.c | 105 ++++++++++++++++++++----------- > include/linux/virtio_rpmsg.h | 24 +++++++ > 2 files changed, 93 insertions(+), 36 deletions(-) > create mode 100644 include/linux/virtio_rpmsg.h >
This set is going somewhere. Please address the comments that were received and send a new revision. Apologies for the long review delay. Mathieu > > base-commit: f982fbb1a6ca3553c15763ad9eb2beeae78d3684 > -- > 2.34.1 >
