Logan, On 9/17/2021 2:40 AM, Logan Gunthorpe wrote:
The dma_map operations now support P2PDMA pages directly. So remove the calls to pci_p2pdma_[un]map_sg_attrs() and replace them with calls to dma_map_sgtable(). dma_map_sgtable() returns more complete error codes than dma_map_sg() and allows differentiating EREMOTEIO errors in case an unsupported P2PDMA transfer is requested. When this happens, return BLK_STS_TARGET so the request isn't retried. Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> --- drivers/nvme/host/pci.c | 69 +++++++++++++++++------------------------ 1 file changed, 29 insertions(+), 40 deletions(-)
Looks good, Reviewed-by: Max Gurtovoy <mgurtovoy@xxxxxxxxxx>
