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| author |   Chuck Lever <chuck.lever@oracle.com> | 2015-06-04 11:21:32 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2015-06-04 16:56:01 -0400 |
| commit | 0380a3f37540ad0582b3c749a74fc127af914689 (patch) | |
| tree | b16bd25dca27461439076b4b607f9b8339a714c0 /include/linux/sunrpc/svc_rdma.h | |
| parent | svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL (diff) | |
| download | linux-dev-0380a3f37540ad0582b3c749a74fc127af914689.tar.xz linux-dev-0380a3f37540ad0582b3c749a74fc127af914689.zip | |
svcrdma: Add a separate "max data segs macro for svcrdma
The server and client maximum are architecturally independent.
Allow changing one without affecting the other.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/sunrpc/svc_rdma.h')
| -rw-r--r-- | include/linux/sunrpc/svc_rdma.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h index d26384b22126..cb94ee4181d4 100644 --- a/include/linux/sunrpc/svc_rdma.h +++ b/include/linux/sunrpc/svc_rdma.h @@ -172,6 +172,13 @@ struct svcxprt_rdma { #define RDMAXPRT_SQ_PENDING 2 #define RDMAXPRT_CONN_PENDING 3 +#define RPCRDMA_MAX_SVC_SEGS (64) /* server max scatter/gather */ +#if RPCSVC_MAXPAYLOAD < (RPCRDMA_MAX_SVC_SEGS << PAGE_SHIFT) +#define RPCRDMA_MAXPAYLOAD RPCSVC_MAXPAYLOAD +#else +#define RPCRDMA_MAXPAYLOAD (RPCRDMA_MAX_SVC_SEGS << PAGE_SHIFT) +#endif + #define RPCRDMA_LISTEN_BACKLOG 10 /* The default ORD value is based on two outstanding full-size writes with a * page size of 4k, or 32k * 2 ops / 4k = 16 outstanding RDMA_READ. */ |