diff options
| author |   Bart Van Assche <bvanassche@acm.org> | 2019-10-25 15:58:28 -0700 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-10-28 14:52:03 -0300 |
| commit | 97458fd510917f142c417245fa5701a892ce69d7 (patch) | |
| tree | f8bdfe679470765b2ed91844919adcdc63e37067 /drivers/infiniband/sw/rxe | |
| parent | RDMA/core: Fix ib_dma_max_seg_size() (diff) | |
| download | linux-dev-97458fd510917f142c417245fa5701a892ce69d7.tar.xz linux-dev-97458fd510917f142c417245fa5701a892ce69d7.zip | |
RDMA/rxe: Increase DMA max_segment_size parameter
Increase the DMA max_segment_size parameter from 64 KB to 2 GB.
Link: https://lore.kernel.org/r/20191025225830.257535-3-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.h | 1 |
2 files changed, 4 insertions, 0 deletions
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; |