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| author | Chuck Lever | 2015-03-30 20:34:39 +0200 |
|---|---|---|
| committer | Anna Schumaker | 2015-03-31 15:52:52 +0200 |
| commit | 9c1b4d775f2d7dd5bb806e3de2f3e1244a7cbd16 (patch) | |
| tree | 19918df86e24602bb055ff6e5be6fba6cf3b2f25 /net/sunrpc/xprtrdma/physical_ops.c | |
| parent | xprtrdma: Add a "max_payload" op for each memreg mode (diff) | |
| download | kernel-qcow2-linux-9c1b4d775f2d7dd5bb806e3de2f3e1244a7cbd16.tar.gz kernel-qcow2-linux-9c1b4d775f2d7dd5bb806e3de2f3e1244a7cbd16.tar.xz kernel-qcow2-linux-9c1b4d775f2d7dd5bb806e3de2f3e1244a7cbd16.zip | |
xprtrdma: Add a "register_external" op for each memreg mode
There is very little common processing among the different external
memory registration functions. Have rpcrdma_create_chunks() call
the registration method directly. This removes a stack frame and a
switch statement from the external registration path.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Devesh Sharma <Devesh.Sharma@Emulex.Com>
Tested-by: Meghana Cheripady <Meghana.Cheripady@Emulex.Com>
Tested-by: Veeresh U. Kokatnur <veereshuk@chelsio.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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", }; |