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| author | Chuck Lever <chuck.lever@oracle.com> | 2016-09-15 10:57:16 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 13:08:38 -0400 |
| commit | c8b920bb49939a5c6cf1d2d819300f318ea050d2 (patch) | |
| tree | 086a61c117611ec50dee5e8d273390a6fce0c269 /net/sunrpc/xprtrdma/fmr_ops.c | |
| parent | 87cfb9a0c85ce4a0c96a4f3d692a85519b933ade (diff) | |
| download | op-kernel-dev-c8b920bb49939a5c6cf1d2d819300f318ea050d2.zip op-kernel-dev-c8b920bb49939a5c6cf1d2d819300f318ea050d2.tar.gz | |
xprtrdma: Basic support for Remote Invalidation
Have frwr's ro_unmap_sync recognize an invalidated rkey that appears
as part of a Receive completion. Local invalidation can be skipped
for that rkey.
Use an out-of-band signaling mechanism to indicate to the server
that the client is prepared to receive RDMA Send With Invalidate.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/fmr_ops.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/fmr_ops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c index 16690a1..1ebb09e 100644 --- a/net/sunrpc/xprtrdma/fmr_ops.c +++ b/net/sunrpc/xprtrdma/fmr_ops.c @@ -273,6 +273,7 @@ fmr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) */ list_for_each_entry(mw, &req->rl_registered, mw_list) list_add_tail(&mw->fmr.fm_mr->list, &unmap_list); + r_xprt->rx_stats.local_inv_needed++; rc = ib_unmap_fmr(&unmap_list); if (rc) goto out_reset; @@ -330,4 +331,5 @@ const struct rpcrdma_memreg_ops rpcrdma_fmr_memreg_ops = { .ro_init_mr = fmr_op_init_mr, .ro_release_mr = fmr_op_release_mr, .ro_displayname = "fmr", + .ro_send_w_inv_ok = 0, }; |
