On Mon, Feb 13, 2017 at 10:51 PM, Anup Patel <anup.patel@xxxxxxxxxxxx> wrote: > The Broadcom stream buffer accelerator (SBA) provides offloading > capabilities for RAID operations. This SBA offload engine is > accessible via Broadcom SoC specific ring manager. > > This patch adds Broadcom SBA RAID driver which provides one > DMA device with RAID capabilities using one or more Broadcom > SoC specific ring manager channels. The SBA RAID driver in its > current shape implements memcpy, xor, and pq operations. > > Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxxxx> > Reviewed-by: Ray Jui <ray.jui@xxxxxxxxxxxx> > --- > drivers/dma/Kconfig | 13 + > drivers/dma/Makefile | 1 + > drivers/dma/bcm-sba-raid.c | 1694 ++++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 1708 insertions(+) > create mode 100644 drivers/dma/bcm-sba-raid.c > > diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig > index 263495d..bf8fb84 100644 > --- a/drivers/dma/Kconfig > +++ b/drivers/dma/Kconfig > @@ -99,6 +99,19 @@ config AXI_DMAC > controller is often used in Analog Device's reference designs for FPGA > platforms. > > +config BCM_SBA_RAID > + tristate "Broadcom SBA RAID engine support" > + depends on (ARM64 && MAILBOX && RAID6_PQ) || COMPILE_TEST > + select DMA_ENGINE > + select DMA_ENGINE_RAID > + select ASYNC_TX_ENABLE_CHANNEL_SWITCH I thought you agreed to drop this. Its usage is broken.
