From patchwork Mon Jan 4 13:15:58 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 7948121 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 [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0F4379F38D for ; Mon, 4 Jan 2016 13:17:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 181702035B for ; Mon, 4 Jan 2016 13:17:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D374201D3 for ; Mon, 4 Jan 2016 13:17:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753345AbcADNRv (ORCPT ); Mon, 4 Jan 2016 08:17:51 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:40126 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753323AbcADNRv (ORCPT ); Mon, 4 Jan 2016 08:17:51 -0500 Received: from [188.21.3.0] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1aG51B-0003sI-BP; Mon, 04 Jan 2016 13:17:50 +0000 From: Christoph Hellwig To: ira.weiny@intel.com, dledford@redhat.com Cc: linux-rdma@vger.kernel.org Subject: [PATCH 1/2] IB/mad: pass ib_mad_send_buf explicitly to the recv_handler Date: Mon, 4 Jan 2016 14:15:58 +0100 Message-Id: <1451913359-25074-2-git-send-email-hch@lst.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1451913359-25074-1-git-send-email-hch@lst.de> References: <1451913359-25074-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, 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 Stop abusing wr_id and just pass the parameter explicitly. Signed-off-by: Christoph Hellwig Reviewed-by: Hal Rosenstock Reviewed-by: Ira Weiny Reviewed-by: Sagi Grimberg --- drivers/infiniband/core/cm.c | 1 + drivers/infiniband/core/mad.c | 18 ++++++++++-------- drivers/infiniband/core/sa_query.c | 7 ++++--- drivers/infiniband/core/user_mad.c | 1 + drivers/infiniband/ulp/srpt/ib_srpt.c | 1 + include/rdma/ib_mad.h | 2 ++ 6 files changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index e3a95d1..ad3726d 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3503,6 +3503,7 @@ int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event) EXPORT_SYMBOL(ib_cm_notify); static void cm_recv_handler(struct ib_mad_agent *mad_agent, + struct ib_mad_send_buf *send_buf, struct ib_mad_recv_wc *mad_recv_wc) { struct cm_port *port = mad_agent->context; diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index d4d2a61..cbe232a 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -693,7 +693,7 @@ static void snoop_recv(struct ib_mad_qp_info *qp_info, atomic_inc(&mad_snoop_priv->refcount); spin_unlock_irqrestore(&qp_info->snoop_lock, flags); - mad_snoop_priv->agent.recv_handler(&mad_snoop_priv->agent, + mad_snoop_priv->agent.recv_handler(&mad_snoop_priv->agent, NULL, mad_recv_wc); deref_snoop_agent(mad_snoop_priv); spin_lock_irqsave(&qp_info->snoop_lock, flags); @@ -1994,9 +1994,9 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, /* user rmpp is in effect * and this is an active RMPP MAD */ - mad_recv_wc->wc->wr_id = 0; - mad_agent_priv->agent.recv_handler(&mad_agent_priv->agent, - mad_recv_wc); + mad_agent_priv->agent.recv_handler( + &mad_agent_priv->agent, NULL, + mad_recv_wc); atomic_dec(&mad_agent_priv->refcount); } else { /* not user rmpp, revert to normal behavior and @@ -2010,9 +2010,10 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, spin_unlock_irqrestore(&mad_agent_priv->lock, flags); /* Defined behavior is to complete response before request */ - mad_recv_wc->wc->wr_id = (unsigned long) &mad_send_wr->send_buf; - mad_agent_priv->agent.recv_handler(&mad_agent_priv->agent, - mad_recv_wc); + mad_agent_priv->agent.recv_handler( + &mad_agent_priv->agent, + &mad_send_wr->send_buf, + mad_recv_wc); atomic_dec(&mad_agent_priv->refcount); mad_send_wc.status = IB_WC_SUCCESS; @@ -2021,7 +2022,7 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, ib_mad_complete_send_wr(mad_send_wr, &mad_send_wc); } } else { - mad_agent_priv->agent.recv_handler(&mad_agent_priv->agent, + mad_agent_priv->agent.recv_handler(&mad_agent_priv->agent, NULL, mad_recv_wc); deref_mad_agent(mad_agent_priv); } @@ -2762,6 +2763,7 @@ static void local_completions(struct work_struct *work) IB_MAD_SNOOP_RECVS); recv_mad_agent->agent.recv_handler( &recv_mad_agent->agent, + &local->mad_send_wr->send_buf, &local->mad_priv->header.recv_wc); spin_lock_irqsave(&recv_mad_agent->lock, flags); atomic_dec(&recv_mad_agent->refcount); diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index e364a42..1f91b6e 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -1669,14 +1669,15 @@ static void send_handler(struct ib_mad_agent *agent, } static void recv_handler(struct ib_mad_agent *mad_agent, + struct ib_mad_send_buf *send_buf, struct ib_mad_recv_wc *mad_recv_wc) { struct ib_sa_query *query; - struct ib_mad_send_buf *mad_buf; - mad_buf = (void *) (unsigned long) mad_recv_wc->wc->wr_id; - query = mad_buf->context[0]; + if (!send_buf) + return; + query = send_buf->context[0]; if (query->callback) { if (mad_recv_wc->wc->status == IB_WC_SUCCESS) query->callback(query, diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 57f281f..415a318 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -210,6 +210,7 @@ static void send_handler(struct ib_mad_agent *agent, } static void recv_handler(struct ib_mad_agent *agent, + struct ib_mad_send_buf *send_buf, struct ib_mad_recv_wc *mad_recv_wc) { struct ib_umad_file *file = agent->context; diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 105512d..1d78de1 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -455,6 +455,7 @@ static void srpt_mad_send_handler(struct ib_mad_agent *mad_agent, * srpt_mad_recv_handler() - MAD reception callback function. */ static void srpt_mad_recv_handler(struct ib_mad_agent *mad_agent, + struct ib_mad_send_buf *send_buf, struct ib_mad_recv_wc *mad_wc) { struct srpt_port *sport = (struct srpt_port *)mad_agent->context; diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index ec9b44d..61c5baa 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -438,6 +438,7 @@ typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent, /** * ib_mad_recv_handler - callback handler for a received MAD. * @mad_agent: MAD agent requesting the received MAD. + * @send_buf: Send buffer if found, else NULL * @mad_recv_wc: Received work completion information on the received MAD. * * MADs received in response to a send request operation will be handed to @@ -447,6 +448,7 @@ typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent, * modify the data referenced by @mad_recv_wc. */ typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent, + struct ib_mad_send_buf *send_buf, struct ib_mad_recv_wc *mad_recv_wc); /**