Hi Jon,
Here is the patch for the file
kernel_patches/fixes/nfsrdma_to_2_6_28_18.patch. This patch will fix the
fast registration wr for Mellanox ConnectX.
ConnectX FRMR requires local write enable together with remote rdma
write enable
thanks,
-vu
--- ofa_kernel-1.4.1.config/kernel_patches/fixes/nfsrdma_to_2.6.28_13.patch
2009-03-19 08:42:07.000000000 -0700
+++ ofa_kernel-1.4.1/kernel_patches/fixes/nfsrdma_to_2.6.28_13.patch
2009-03-19 08:49:22.000000000 -0700
@@ -167,7 +167,7 @@
case RPCRDMA_MTHCAFMR:
case RPCRDMA_MEMWINDOWS_ASYNC:
case RPCRDMA_MEMWINDOWS:
-@@ -1391,6 +1457,96 @@ rpcrdma_unmap_one(struct rpcrdma_ia *ia, struct
rpcrdma_mr_seg *seg)
+@@ -1391,6 +1457,98 @@ rpcrdma_unmap_one(struct rpcrdma_ia *ia, struct
rpcrdma_mr_seg *seg)
}
static int
@@ -214,8 +214,10 @@
+ frmr_wr.wr.fast_reg.page_list_len = i;
+ frmr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
+ frmr_wr.wr.fast_reg.length = i << PAGE_SHIFT;
-+ frmr_wr.wr.fast_reg.access_flags = (writing ?
-+ IB_ACCESS_REMOTE_WRITE : IB_ACCESS_REMOTE_READ);
++ frmr_wr.wr.fast_reg.access_flags =
++ (writing ?
++ (IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE) :
++ IB_ACCESS_REMOTE_READ);
+ frmr_wr.wr.fast_reg.rkey = seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey;
+ DECR_CQCOUNT(&r_xprt->rx_ep);
+
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