Changes v1 -> v2:
- Addressed comments from Allen Hubbe
- Added CPU resubmit for aborted/failed NTB submissions
The following series implements error reporting and handling for ioatdma.
An error flag field has been added to return DMA error status via the
generic DMA descriptor so the upper layer can be notified if there are errors.
The ioatdma driver now will abort remaining outstanding descriptors when an
error has occured that requires a channel reset. The Intel NTB driver has been
modified to handle the error condition from the DMA layer.
---
Dave Jiang (5):
dmaengine: Adding error handling flag
dmaengine: IOATDMA: Add error handling to driver
dmaengine: ioatdma: add error strings to chanerr output
ntb: add DMA error handling for TX DMA
ntb: add DMA error handling for RX DMA
drivers/dma/ioat/dma.c | 201 +++++++++++++++++++++++++++++++++++-----
drivers/dma/ioat/registers.h | 2
drivers/ntb/ntb_transport.c | 213 ++++++++++++++++++++++++++++++++----------
include/linux/dmaengine.h | 15 +++
4 files changed, 356 insertions(+), 75 deletions(-)
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