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| author | Chuck Lever <chuck.lever@oracle.com> | 2016-01-07 14:50:02 -0500 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-01-19 15:30:48 -0500 |
| commit | 03fe9931536fe4782e9e34f7f499d588acd2015b (patch) | |
| tree | cfee0f65e50640e7daf02eff73e9748a2e1d8db5 /net/sunrpc/xprtrdma/svc_rdma.c | |
| parent | ba986c96f907a513215fb7f1c0a89261c97251ca (diff) | |
| download | linux-stable-03fe9931536fe4782e9e34f7f499d588acd2015b.tar.gz linux-stable-03fe9931536fe4782e9e34f7f499d588acd2015b.tar.bz2 linux-stable-03fe9931536fe4782e9e34f7f499d588acd2015b.zip | |
svcrdma: Define maximum number of backchannel requests
Extra resources for handling backchannel requests have to be
pre-allocated when a transport instance is created. Set up
additional fields in svcxprt_rdma to track these resources.
The max_requests fields are elements of the RPC-over-RDMA
protocol, so they should be u32. To ensure that unsigned
arithmetic is used everywhere, some other fields in the
svcxprt_rdma struct are updated.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c index e894e0698c45..c846ca9f1eba 100644 --- a/net/sunrpc/xprtrdma/svc_rdma.c +++ b/net/sunrpc/xprtrdma/svc_rdma.c @@ -55,6 +55,7 @@ unsigned int svcrdma_ord = RPCRDMA_ORD; static unsigned int min_ord = 1; static unsigned int max_ord = 4096; unsigned int svcrdma_max_requests = RPCRDMA_MAX_REQUESTS; +unsigned int svcrdma_max_bc_requests = RPCRDMA_MAX_BC_REQUESTS; static unsigned int min_max_requests = 4; static unsigned int max_max_requests = 16384; unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE; @@ -245,9 +246,10 @@ int svc_rdma_init(void) { dprintk("SVCRDMA Module Init, register RPC RDMA transport\n"); dprintk("\tsvcrdma_ord : %d\n", svcrdma_ord); - dprintk("\tmax_requests : %d\n", svcrdma_max_requests); - dprintk("\tsq_depth : %d\n", + dprintk("\tmax_requests : %u\n", svcrdma_max_requests); + dprintk("\tsq_depth : %u\n", svcrdma_max_requests * RPCRDMA_SQ_DEPTH_MULT); + dprintk("\tmax_bc_requests : %u\n", svcrdma_max_bc_requests); dprintk("\tmax_inline : %d\n", svcrdma_max_req_size); svc_rdma_wq = alloc_workqueue("svc_rdma", 0, 0); |