From c93e986a295d537589efd0504f36ca952bd1a5be Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 29 Jul 2014 17:24:19 -0400 Subject: 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 Signed-off-by: Chuck Lever Signed-off-by: Anna Schumaker --- net/sunrpc/xprtrdma/verbs.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net') diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index dd1dabc..b670f4d 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -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; -- cgit v1.1