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svcrdma: Fence LOCAL_INV work requests

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Fencing forces the invalidate to only happen after all prior send
work requests have been completed.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reported by : Devesh Sharma <Devesh.Sharma@Emulex.Com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Steve Wise 2014-06-05 09:54:31 -05:00 committed by J. Bruce Fields
parent 0bf4828983
commit 83710fc753
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
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@ -338,7 +338,7 @@ static int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
memset(&inv_wr, 0, sizeof(inv_wr)); memset(&inv_wr, 0, sizeof(inv_wr));
inv_wr.wr_id = (unsigned long)ctxt; inv_wr.wr_id = (unsigned long)ctxt;
inv_wr.opcode = IB_WR_LOCAL_INV; inv_wr.opcode = IB_WR_LOCAL_INV;
inv_wr.send_flags = IB_SEND_SIGNALED; inv_wr.send_flags = IB_SEND_SIGNALED | IB_SEND_FENCE;
inv_wr.ex.invalidate_rkey = frmr->mr->lkey; inv_wr.ex.invalidate_rkey = frmr->mr->lkey;
} }
ctxt->wr_op = read_wr.opcode; ctxt->wr_op = read_wr.opcode;