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| author |   Chuck Lever <chuck.lever@oracle.com> | 2015-05-26 11:53:33 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2015-06-12 13:10:37 -0400 |
| commit | 40c6ed0c8a7f2c5d67f5d6774bbce230a42176db (patch) | |
| tree | 6bd7a6ef256fd7c8612c2d4466449bf10b35a0d4 /net/sunrpc/xprtrdma/frwr_ops.c | |
| parent | xprtrdma: Stack relief in fmr_op_map() (diff) | |
| download | linux-dev-40c6ed0c8a7f2c5d67f5d6774bbce230a42176db.tar.xz linux-dev-40c6ed0c8a7f2c5d67f5d6774bbce230a42176db.zip | |
xprtrdma: Reduce per-transport MR allocation
Reduce resource consumption per-transport to make way for increasing
the credit limit and maximum r/wsize. Pre-allocate fewer MRs.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Devesh Sharma <devesh.sharma@avagotech.com>
Tested-By: Devesh Sharma <devesh.sharma@avagotech.com>
Reviewed-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to '')
| -rw-r--r-- | net/sunrpc/xprtrdma/frwr_ops.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c index 18b7305d249f..661fbc1784ab 100644 --- a/net/sunrpc/xprtrdma/frwr_ops.c +++ b/net/sunrpc/xprtrdma/frwr_ops.c @@ -270,8 +270,10 @@ frwr_op_init(struct rpcrdma_xprt *r_xprt) INIT_LIST_HEAD(&buf->rb_mws); INIT_LIST_HEAD(&buf->rb_all); - i = (buf->rb_max_requests + 1) * RPCRDMA_MAX_SEGS; - dprintk("RPC: %s: initializing %d FRMRs\n", __func__, i); + i = max_t(int, RPCRDMA_MAX_DATA_SEGS / depth, 1); + i += 2; /* head + tail */ + i *= buf->rb_max_requests; /* one set for each RPC slot */ + dprintk("RPC: %s: initalizing %d FRMRs\n", __func__, i); while (i--) { struct rpcrdma_mw *r; |