Vu Pham wrote:
Steve,
You should have the same fix for the server side as well
Here is the patch
Actually, I don't think this server change is needed. The server is
using a kernel virtual address as the iova_start, which is 32b on a 32b
system. The client, however, is using a bus address, which is 64b.
However, the server side is still crashing for me so I'm debugging...
Steve.
-vu
A bad cast causes the iova_start, which in this case is a DMA bus
address,
to be truncated on 32b systems. No cast is needed.
Signed-off-by: Steve Wise <sw...@opengridcomputing.com>
---
net/sunrpc/xprtrdma/verbs.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 3b21e0c..3a374f5 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1489,7 +1489,7 @@ rpcrdma_register_frmr_external(struct
rpcrdma_mr_seg *seg,
memset(&frmr_wr, 0, sizeof frmr_wr);
frmr_wr.opcode = IB_WR_FAST_REG_MR;
frmr_wr.send_flags = 0; /* unsignaled */
- frmr_wr.wr.fast_reg.iova_start = (unsigned long)seg1->mr_dma;
+ frmr_wr.wr.fast_reg.iova_start = seg1->mr_dma;
frmr_wr.wr.fast_reg.page_list = seg1->mr_chunk.rl_mw->r.frmr.fr_pgl;
frmr_wr.wr.fast_reg.page_list_len = i;
frmr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
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