Commit c93e986a authored Jul 29, 2014 by Chuck Lever Committed by Anna Schumaker Jul 31, 2014

xprtrdma: Back off rkey when FAST_REG_MR fails



If posting a FAST_REG_MR Work Reqeust fails, revert the rkey update
to avoid subsequent IB_WC_MW_BIND_ERR completions.

Suggested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

parent 0dbb4108

net/sunrpc/xprtrdma/verbs.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1577,6 +1577,7 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
		if (rc) {
		dprintk("RPC: %s: failed ib_post_send for register,"
		" status %i\n", __func__, rc);
		ib_update_fast_reg_key(mr, --key);
		goto out_err;
		} else {
		seg1->mr_rkey = mr->rkey;