On 5/3/21 10:19 AM, Logan Gunthorpe wrote:
...
+ nr_mapped = dma_map_sg_p2pdma_attrs(dev->dev, iod->sg, iod->nents,
+rq_dma_dir(req), DMA_ATTR_NO_WARN);
+ if (nr_mapped < 0) {
+ if (nr_mapped != -ENOMEM)
+ ret = B
On 2021-05-02 7:34 p.m., John Hubbard wrote:
>> if (iod->npages == 0)
>> dma_pool_free(dev->prp_small_pool, nvme_pci_iod_list(req)[0],
>>iod->first_dma);
>> @@ -868,14 +857,13 @@ static blk_status_t nvme_map_data(struct nvme_dev
>> *dev, struct requ
On 4/8/21 10:01 AM, Logan Gunthorpe wrote:
Convert to using dma_map_sg_p2pdma() for PCI p2pdma pages.
This should be equivalent but allows for heterogeneous scatterlists
with both P2PDMA and regular pages. However, P2PDMA support will be
slightly more restricted (only dma-direct and dma-iommu ar
Convert to using dma_map_sg_p2pdma() for PCI p2pdma pages.
This should be equivalent but allows for heterogeneous scatterlists
with both P2PDMA and regular pages. However, P2PDMA support will be
slightly more restricted (only dma-direct and dma-iommu are currently
supported).
Signed-off-by: Logan
