From patchwork Tue Sep 23 15:37:44 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowmini Varadhan X-Patchwork-Id: 392571 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B54DA140076 for ; Wed, 24 Sep 2014 01:37:50 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751949AbaIWPhu (ORCPT ); Tue, 23 Sep 2014 11:37:50 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:19858 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755234AbaIWPht (ORCPT ); Tue, 23 Sep 2014 11:37:49 -0400 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s8NFbkK7030760 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 23 Sep 2014 15:37:47 GMT Received: from aserz7022.oracle.com (aserz7022.oracle.com [141.146.126.231]) by ucsinet22.oracle.com (8.14.5+Sun/8.14.5) with ESMTP id s8NFbiJ9016086 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 23 Sep 2014 15:37:45 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserz7022.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s8NFbiLO028253; Tue, 23 Sep 2014 15:37:44 GMT Received: from oracle.com (/10.154.155.31) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 23 Sep 2014 08:37:43 -0700 Date: Tue, 23 Sep 2014 11:37:44 -0400 From: Sowmini Varadhan To: davem@davemloft.net, sowmini.varadhan@oracle.com Cc: sparclinux@vger.kernel.org Subject: [PATCH] sparc64: Add vio_set_intr() to enable/disable Rx interrupts Message-ID: <20140923153744.GB11042@oracle.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org The vio_set_intr() API should be used by VIO consumers to enable/disable Rx interrupts to facilitate deferred processing in softirq/bottom-half context. Signed-off-by: Sowmini Varadhan --- arch/sparc/include/asm/vio.h | 2 ++ arch/sparc/kernel/vio.c | 13 ++++++++++++- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h index e0f6c39..0847b11 100644 --- a/arch/sparc/include/asm/vio.h +++ b/arch/sparc/include/asm/vio.h @@ -279,6 +279,7 @@ struct vio_dev { unsigned int tx_irq; unsigned int rx_irq; + u64 rx_ino; struct device dev; }; @@ -407,5 +408,6 @@ int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev, char *name); void vio_port_up(struct vio_driver_state *vio); +int vio_set_intr(unsigned long dev_ino, int state); #endif /* _SPARC64_VIO_H */ diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 8647fcc..cb5789c 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -180,8 +180,10 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp, vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq); irq = mdesc_get_property(hp, target, "rx-ino", NULL); - if (irq) + if (irq) { vdev->rx_irq = sun4v_build_virq(cdev_cfg_handle, *irq); + vdev->rx_ino = *irq; + } chan_id = mdesc_get_property(hp, target, "id", NULL); if (chan_id) @@ -189,6 +191,15 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp, } } +int vio_set_intr(unsigned long dev_ino, int state) +{ + int err; + + err = sun4v_vintr_set_valid(cdev_cfg_handle, dev_ino, state); + return err; +} +EXPORT_SYMBOL(vio_set_intr); + static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, struct device *parent) {