[PATCH 09/10 v2] ioatdma: Adding write back descriptor error status support for ioatdma 3.3

v3.3 provides support for write back descriptor error status. This allows reporting of errors in a descriptor field. In supporting this, certain errors such as P/Q validation errors no longer halts the channel. The DMA engine can continue to execute until the end of the chain and allow software to

[PATCH 09/10 v2] ioatdma: Adding write back descriptor error status support for ioatdma 3.3

v3.3 provides support for write back descriptor error status. This allows reporting of errors in a descriptor field. In supporting this, certain errors such as P/Q validation errors no longer halts the channel. The DMA engine can continue to execute until the end of the chain and allow software to