diff options
Diffstat (limited to 'net/sunrpc/xprtrdma/physical_ops.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/physical_ops.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/physical_ops.c b/net/sunrpc/xprtrdma/physical_ops.c index 28ade1943a57..5a284ee0e058 100644 --- a/net/sunrpc/xprtrdma/physical_ops.c +++ b/net/sunrpc/xprtrdma/physical_ops.c @@ -28,7 +28,24 @@ physical_op_maxpages(struct rpcrdma_xprt *r_xprt) rpcrdma_max_segments(r_xprt)); } +/* The client's physical memory is already exposed for + * remote access via RDMA READ or RDMA WRITE. + */ +static int +physical_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg, + int nsegs, bool writing) +{ + struct rpcrdma_ia *ia = &r_xprt->rx_ia; + + rpcrdma_map_one(ia, seg, writing); + seg->mr_rkey = ia->ri_bind_mem->rkey; + seg->mr_base = seg->mr_dma; + seg->mr_nsegs = 1; + return 1; +} + const struct rpcrdma_memreg_ops rpcrdma_physical_memreg_ops = { + .ro_map = physical_op_map, .ro_maxpages = physical_op_maxpages, .ro_displayname = "physical", }; |