From patchwork Tue Jul 29 21:24:19 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 4643011 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 90F859F32F for ; Tue, 29 Jul 2014 21:24:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DAD3A2012B for ; Tue, 29 Jul 2014 21:24:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11A9D2014A for ; Tue, 29 Jul 2014 21:24:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754292AbaG2VYW (ORCPT ); Tue, 29 Jul 2014 17:24:22 -0400 Received: from mail-ie0-f175.google.com ([209.85.223.175]:48244 "EHLO mail-ie0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754286AbaG2VYV (ORCPT ); Tue, 29 Jul 2014 17:24:21 -0400 Received: by mail-ie0-f175.google.com with SMTP id x19so281070ier.6 for ; Tue, 29 Jul 2014 14:24:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:from:to:cc:date:message-id:in-reply-to:references :user-agent:mime-version:content-type:content-transfer-encoding; bh=gD+db7XbSwOGt7jyL+iIg+AeydBunt5pRXt2jMWO91g=; b=SDrGfovhPW0thE7U3JpQ68ivOMNv0YS/XJRPPCx1q5+ltuTMkSkXe/1dfnj0DmPuzv FUDweR2SxsOTRy/1ISK0VUom5A/QXODrwyERz3efbG9pMOFdN682K+NJ59HztMQzj3ww 3klB3CDAtWNJMHakm1vdwPkeAB5lZkEMT+OLOV9Aa1mARcTkocDBnAY+UTK52kVHncId 1UiOiXaWbruANnnUON5QsYuS8F7UqpmB+8lNp1HluqeNhQS9DwxIrQDO1LP6XZJZkE/E /kNUd3O65eDHgH4usXzaPrRW2jMk84jHQpms6f1MGaIJoOucJCS5vl4QJH14Aada0OPC ZCmw== X-Received: by 10.43.150.193 with SMTP id kp1mr8829367icc.33.1406669060992; Tue, 29 Jul 2014 14:24:20 -0700 (PDT) Received: from manet.1015granger.net ([2604:8800:100:81fc:82ee:73ff:fe43:d64f]) by mx.google.com with ESMTPSA id dx6sm1622349igb.4.2014.07.29.14.24.19 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 29 Jul 2014 14:24:20 -0700 (PDT) Subject: [PATCH v5 08/21] xprtrdma: Back off rkey when FAST_REG_MR fails From: Chuck Lever To: Anna.Schumaker@netapp.com Cc: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Tue, 29 Jul 2014 17:24:19 -0400 Message-ID: <20140729212419.2812.56123.stgit@manet.1015granger.net> In-Reply-To: <20140729211534.2812.3128.stgit@manet.1015granger.net> References: <20140729211534.2812.3128.stgit@manet.1015granger.net> User-Agent: StGit/0.17.1-3-g7d0f MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- net/sunrpc/xprtrdma/verbs.c | 1 + 1 file changed, 1 insertion(+) -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 8bb7945..dc53ea2 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1574,6 +1574,7 @@ 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;