This is a resend of the second part for the mei dma ring,
that was left out.
This series adds an alternative method for
transferring data between the mei driver and the device
via a DMA ring. The DMA ring allows transferring
data in bigger chunks, up to 128K, than the HW ring 512B.
The actual sizes depend on particular MEI generations.
The HW ring is faster for packets that fits
into the HW ring while a packet that would require
fragmentation is faster to send via the DMA ring.
V2: 1. Use single license for the new dma-ring.c file.
2. Adjust kdoc to new requirements:
https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.html
Alexander Usyskin (2):
mei: bump hbm version to 2.1
mei: me: mark CNP devices as having dma support
Tomas Winkler (5):
mei: dma ring buffers allocation
mei: hbm: setup dma ring
mei: hw: add dma ring control block
mei: dma ring: implement rx circular buffer logic
mei: dma ring: implement transmit flow
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/client.c | 66 +++++++--
drivers/misc/mei/dma-ring.c | 269 +++++++++++++++++++++++++++++++++++
drivers/misc/mei/hbm.c | 88 +++++++++++-
drivers/misc/mei/hbm.h | 2 +
drivers/misc/mei/hw-me.c | 6 +
drivers/misc/mei/hw.h | 29 +++-
drivers/misc/mei/init.c | 2 +-
drivers/misc/mei/interrupt.c | 41 ++++--
drivers/misc/mei/mei_dev.h | 26 +++-
drivers/misc/mei/pci-me.c | 4 +-
11 files changed, 500 insertions(+), 34 deletions(-)
create mode 100644 drivers/misc/mei/dma-ring.c
--
2.17.2
