From patchwork Tue Jul 15 14:22:20 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 4554261 Return-Path: X-Original-To: patchwork-linux-rdma@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 1911E9F3BC for ; Tue, 15 Jul 2014 14:22:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 27D8F2012B for ; Tue, 15 Jul 2014 14:22:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 891D12011E for ; Tue, 15 Jul 2014 14:22:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752374AbaGOOWX (ORCPT ); Tue, 15 Jul 2014 10:22:23 -0400 Received: from mail-ig0-f170.google.com ([209.85.213.170]:43124 "EHLO mail-ig0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751601AbaGOOWW (ORCPT ); Tue, 15 Jul 2014 10:22:22 -0400 Received: by mail-ig0-f170.google.com with SMTP id h3so2862945igd.5 for ; Tue, 15 Jul 2014 07:22:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:from:to:date:message-id:in-reply-to:references :user-agent:mime-version:content-type:content-transfer-encoding; bh=aTujUMFji2fRGLJkriGCptiqxIYfsxj1Spi6k0voEvE=; b=T8Xn/XgsHlJ1zoBjJGf9bC2z8wHtIyf9MSqnyTXgBLV9lytbyF1beEg4iIrJkDvabq 3W2hffyyu2TYg2k9hUTZjjDIiejz/hBlDuYX0Ik6HF8ldPdRMVLiuKbaHO1XsKxTbc1u cBvROhQij547wmc3fFQ9HM6TJsLQv3MEEInZOQciRgg3t9Nov7a9jeU55lph9wXel5MH hC42QRRVmoIrfPdaFSj9G5DE3dUcZL1okpqW4HJ2gTivSzlA0CVe0lkPBQhrLBYoh7P0 vyE5ya8q9Bfa/EF+0ywbm4eE+LQ+Lmzb3aA9xjOPoTQRxAZYq9QaHvPhrb7aWu9MObck 8MmQ== X-Received: by 10.50.60.41 with SMTP id e9mr6865203igr.11.1405434142071; Tue, 15 Jul 2014 07:22:22 -0700 (PDT) Received: from manet.1015granger.net ([2604:8800:100:81fc:82ee:73ff:fe43:d64f]) by mx.google.com with ESMTPSA id z8sm35202461igl.20.2014.07.15.07.22.21 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Jul 2014 07:22:21 -0700 (PDT) Subject: [PATCH v3 15/21] xprtrdma: Disable completions for LOCAL_INV Work Requests From: Chuck Lever To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Tue, 15 Jul 2014 10:22:20 -0400 Message-ID: <20140715142220.8908.44603.stgit@manet.1015granger.net> In-Reply-To: <20140715142020.8908.80969.stgit@manet.1015granger.net> References: <20140715142020.8908.80969.stgit@manet.1015granger.net> User-Agent: StGit/0.17.1-3-g7d0f MIME-Version: 1.0 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham 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 Instead of relying on a completion to change the state of an FRMR to FRMR_IS_INVALID, set it in advance. If an error occurs, a completion will fire anyway and mark the FRMR FRMR_IS_STALE. Signed-off-by: Chuck Lever Tested-by: Steve Wise --- net/sunrpc/xprtrdma/verbs.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" 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 b36a5dd..fa5199d 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -154,12 +154,8 @@ rpcrdma_sendcq_process_wc(struct ib_wc *wc) if (wc->wr_id == 0ULL) return; - if (wc->status != IB_WC_SUCCESS) { + if (wc->status != IB_WC_SUCCESS) frmr->r.frmr.fr_state = FRMR_IS_STALE; - return; - } - - frmr->r.frmr.fr_state = FRMR_IS_INVALID; } static int @@ -1369,12 +1365,11 @@ rpcrdma_retry_local_inv(struct rpcrdma_mw *r, struct rpcrdma_ia *ia) dprintk("RPC: %s: FRMR %p is stale\n", __func__, r); /* When this FRMR is re-inserted into rb_mws, it is no longer stale */ - r->r.frmr.fr_state = FRMR_IS_VALID; + r->r.frmr.fr_state = FRMR_IS_INVALID; memset(&invalidate_wr, 0, sizeof(invalidate_wr)); invalidate_wr.wr_id = (unsigned long)(void *)r; invalidate_wr.opcode = IB_WR_LOCAL_INV; - invalidate_wr.send_flags = IB_SEND_SIGNALED; invalidate_wr.ex.invalidate_rkey = r->r.frmr.fr_mr->rkey; DECR_CQCOUNT(&r_xprt->rx_ep); @@ -1773,10 +1768,11 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg, struct ib_send_wr invalidate_wr, *bad_wr; int rc; + seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_INVALID; + memset(&invalidate_wr, 0, sizeof invalidate_wr); invalidate_wr.wr_id = (unsigned long)(void *)seg1->mr_chunk.rl_mw; invalidate_wr.opcode = IB_WR_LOCAL_INV; - invalidate_wr.send_flags = IB_SEND_SIGNALED; invalidate_wr.ex.invalidate_rkey = seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey; DECR_CQCOUNT(&r_xprt->rx_ep); @@ -1785,9 +1781,12 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg, rpcrdma_unmap_one(ia, seg++); rc = ib_post_send(ia->ri_id->qp, &invalidate_wr, &bad_wr); read_unlock(&ia->ri_qplock); - if (rc) + if (rc) { + /* Force rpcrdma_buffer_get() to retry */ + seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_STALE; dprintk("RPC: %s: failed ib_post_send for invalidate," " status %i\n", __func__, rc); + } return rc; }