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 <[email protected]>
---
drivers/nvme/host/pci.c | 69 +++++++++++++++++------------------------
1 file changed, 29 insertions(+), 40 deletions(-)
Looks good,
Reviewed-by: Max Gurtovoy <[email protected]>
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