| Message ID | 20191025225830.257535-3-bvanassche@acm.org (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 97458fd510917f142c417245fa5701a892ce69d7 |
| Delegated to: | Jason Gunthorpe |
| Headers | show |
| Series | Fixes related to the DMA max_segment_size parameter | expand |
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index fa47bdcc7f54..9dd4bd7aea92 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -1175,6 +1175,9 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name) addrconf_addr_eui48((unsigned char *)&dev->node_guid, rxe->ndev->dev_addr); dev->dev.dma_ops = &dma_virt_ops; + dev->dev.dma_parms = &rxe->dma_parms; + rxe->dma_parms = (struct device_dma_parameters) + { .max_segment_size = SZ_2G }; dma_coerce_mask_and_coherent(&dev->dev, dma_get_required_mask(&dev->dev)); diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index 5c4b2239129c..95834206c80c 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -384,6 +384,7 @@ struct rxe_port { struct rxe_dev { struct ib_device ib_dev; struct ib_device_attr attr; + struct device_dma_parameters dma_parms; int max_ucontext; int max_inline_data; struct mutex usdev_lock;
Increase the DMA max_segment_size parameter from 64 KB to 2 GB. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> --- drivers/infiniband/sw/rxe/rxe_verbs.c | 3 +++ drivers/infiniband/sw/rxe/rxe_verbs.h | 1 + 2 files changed, 4 insertions(+)