Searched hist:"495758 bb1a72316094ee854dc51f667ad3db29b5" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/nvme/target/ |
| H A D | rdma.c | diff 495758bb1a72316094ee854dc51f667ad3db29b5 Fri Jul 08 11:51:02 CDT 2022 Logan Gunthorpe <logang@deltatee.com> RDMA/core: introduce ib_dma_pci_p2p_dma_supported()
Introduce the helper function ib_dma_pci_p2p_dma_supported() to check
if a given ib_device can be used in P2PDMA transfers. This ensures
the ib_device is not using virt_dma and also that the underlying
dma_device supports P2PDMA.
Use the new helper in nvme-rdma to replace the existing check for
ib_uses_virt_dma(). Adding the dma_pci_p2pdma_supported() check allows
switching away from pci_p2pdma_[un]map_sg().
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
| /openbmc/linux/include/rdma/ |
| H A D | ib_verbs.h | diff 495758bb1a72316094ee854dc51f667ad3db29b5 Fri Jul 08 11:51:02 CDT 2022 Logan Gunthorpe <logang@deltatee.com> RDMA/core: introduce ib_dma_pci_p2p_dma_supported()
Introduce the helper function ib_dma_pci_p2p_dma_supported() to check
if a given ib_device can be used in P2PDMA transfers. This ensures
the ib_device is not using virt_dma and also that the underlying
dma_device supports P2PDMA.
Use the new helper in nvme-rdma to replace the existing check for
ib_uses_virt_dma(). Adding the dma_pci_p2pdma_supported() check allows
switching away from pci_p2pdma_[un]map_sg().
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
|