From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mtagate1.uk.ibm.com (mtagate1.uk.ibm.com [195.212.29.134]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mtagate1.uk.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTP id 6D8BBDE0DC for ; Mon, 9 Jul 2007 23:34:03 +1000 (EST) Received: from d06nrmr1407.portsmouth.uk.ibm.com (d06nrmr1407.portsmouth.uk.ibm.com [9.149.38.185]) by mtagate1.uk.ibm.com (8.13.8/8.13.8) with ESMTP id l69DXw2T039906 for ; Mon, 9 Jul 2007 13:33:58 GMT Received: from d06av02.portsmouth.uk.ibm.com (d06av02.portsmouth.uk.ibm.com [9.149.37.228]) by d06nrmr1407.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v8.3) with ESMTP id l69DXsNf573676 for ; Mon, 9 Jul 2007 14:33:55 +0100 Received: from d06av02.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av02.portsmouth.uk.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l69DXrgh005777 for ; Mon, 9 Jul 2007 14:33:54 +0100 From: Joachim Fenkes To: "LinuxPPC-Dev" , LKML , "OF-General" , Roland Dreier Subject: [PATCH 13/13] IB/ehca: Improve latency by unlocking the SQ/RQ after triggering the hardware References: <200707091502.22407.fenkes@de.ibm.com> In-Reply-To: <200707091502.22407.fenkes@de.ibm.com> MIME-Version: 1.0 Date: Mon, 9 Jul 2007 15:33:52 +0200 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200707091533.53383.fenkes@de.ibm.com> Cc: Stefan Roscher , Christoph Raisch List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Hoang-Nam Nguyen Signed-off-by: Joachim Fenkes --- drivers/infiniband/hw/ehca/ehca_reqs.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index fd3ba22..61da65e 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -407,10 +407,9 @@ int ehca_post_send(struct ib_qp *qp, } /* eof for cur_send_wr */ post_send_exit0: - /* UNLOCK the QUEUE */ - spin_unlock_irqrestore(&my_qp->spinlock_s, flags); iosync(); /* serialize GAL register access */ hipz_update_sqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_s, flags); return ret; } @@ -473,9 +472,9 @@ static int internal_post_recv(struct ehca_qp *my_qp, } /* eof for cur_recv_wr */ post_recv_exit0: - spin_unlock_irqrestore(&my_qp->spinlock_r, flags); iosync(); /* serialize GAL register access */ hipz_update_rqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_r, flags); return ret; } -- 1.5.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757781AbXGINe0 (ORCPT ); Mon, 9 Jul 2007 09:34:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755207AbXGINeA (ORCPT ); Mon, 9 Jul 2007 09:34:00 -0400 Received: from mtagate7.uk.ibm.com ([195.212.29.140]:17320 "EHLO mtagate7.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754509AbXGINd7 (ORCPT ); Mon, 9 Jul 2007 09:33:59 -0400 From: Joachim Fenkes To: "LinuxPPC-Dev" , LKML , "OF-General" , Roland Dreier Subject: [PATCH 13/13] IB/ehca: Improve latency by unlocking the SQ/RQ after triggering the hardware User-Agent: KMail/1.8.2 Cc: "Hoang-Nam Nguyen" , Christoph Raisch , Stefan Roscher References: <200707091502.22407.fenkes@de.ibm.com> In-Reply-To: <200707091502.22407.fenkes@de.ibm.com> MIME-Version: 1.0 Content-Disposition: inline X-Length: 1748 Date: Mon, 9 Jul 2007 15:33:52 +0200 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200707091533.53383.fenkes@de.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Hoang-Nam Nguyen Signed-off-by: Joachim Fenkes --- drivers/infiniband/hw/ehca/ehca_reqs.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index fd3ba22..61da65e 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -407,10 +407,9 @@ int ehca_post_send(struct ib_qp *qp, } /* eof for cur_send_wr */ post_send_exit0: - /* UNLOCK the QUEUE */ - spin_unlock_irqrestore(&my_qp->spinlock_s, flags); iosync(); /* serialize GAL register access */ hipz_update_sqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_s, flags); return ret; } @@ -473,9 +472,9 @@ static int internal_post_recv(struct ehca_qp *my_qp, } /* eof for cur_recv_wr */ post_recv_exit0: - spin_unlock_irqrestore(&my_qp->spinlock_r, flags); iosync(); /* serialize GAL register access */ hipz_update_rqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_r, flags); return ret; } -- 1.5.2