Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757303Ab0LJUqE (ORCPT ); Fri, 10 Dec 2010 15:46:04 -0500 Received: from mxout1.idt.com ([157.165.5.25]:39667 "EHLO mxout1.idt.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757229Ab0LJUp7 (ORCPT ); Fri, 10 Dec 2010 15:45:59 -0500 X-Greylist: delayed 403 seconds by postgrey-1.27 at vger.kernel.org; Fri, 10 Dec 2010 15:45:44 EST From: Alexandre Bounine To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Alexandre Bounine , Kumar Gala , Matt Porter , Li Yang , Thomas Moll , Micha Nelissen Subject: [PATCH -mm 4/4] RapidIO: Add new sysfs attributes Date: Fri, 10 Dec 2010 15:38:18 -0500 Message-Id: <1292013498-31406-5-git-send-email-alexandre.bounine@idt.com> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: <1292013498-31406-1-git-send-email-alexandre.bounine@idt.com> References: <1292013498-31406-1-git-send-email-alexandre.bounine@idt.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4063 Lines: 114 Add new sysfs attributes. 1. Routing information required to to reach the RIO device: destid - device destination ID (real for for endpoint, route for switch) hopcount - hopcount for maintenance requests (switches only) 2. device linking information: lprev - name of device that precedes the given device in the enumeration or discovery order (displayed along with of the port to which it is attached). lnext - names of devices (with corresponding port numbers) that are attached to the given device as next in the enumeration or discovery order (switches only) Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Micha Nelissen --- drivers/rapidio/rio-sysfs.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 files changed, 38 insertions(+), 1 deletions(-) diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c index 76b4185..b8d9eaf 100644 --- a/drivers/rapidio/rio-sysfs.c +++ b/drivers/rapidio/rio-sysfs.c @@ -33,6 +33,8 @@ rio_config_attr(device_rev, "0x%08x\n"); rio_config_attr(asm_did, "0x%04x\n"); rio_config_attr(asm_vid, "0x%04x\n"); rio_config_attr(asm_rev, "0x%04x\n"); +rio_config_attr(destid, "0x%04x\n"); +rio_config_attr(hopcount, "0x%02x\n"); static ssize_t routes_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -52,6 +54,33 @@ static ssize_t routes_show(struct device *dev, struct device_attribute *attr, ch return (str - buf); } +static ssize_t lprev_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rio_dev *rdev = to_rio_dev(dev); + + return sprintf(buf, "%02d %s\n", RIO_GET_PORT_NUM(rdev->swpinfo), + (rdev->prev) ? rio_name(rdev->prev) : "host"); +} + +static ssize_t lnext_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rio_dev *rdev = to_rio_dev(dev); + char *str = buf; + int i; + + if (rdev->pef & RIO_PEF_SWITCH) { + for (i = 0; i < RIO_GET_TOTAL_PORTS(rdev->swpinfo); i++) { + if (rdev->rswitch->nextdev[i]) + str += sprintf(str, "%02d %s\n", i, + rio_name(rdev->rswitch->nextdev[i])); + } + } + + return str - buf; +} + struct device_attribute rio_dev_attrs[] = { __ATTR_RO(did), __ATTR_RO(vid), @@ -59,10 +88,14 @@ struct device_attribute rio_dev_attrs[] = { __ATTR_RO(asm_did), __ATTR_RO(asm_vid), __ATTR_RO(asm_rev), + __ATTR_RO(lprev), + __ATTR_RO(destid), __ATTR_NULL, }; static DEVICE_ATTR(routes, S_IRUGO, routes_show, NULL); +static DEVICE_ATTR(lnext, S_IRUGO, lnext_show, NULL); +static DEVICE_ATTR(hopcount, S_IRUGO, hopcount_show, NULL); static ssize_t rio_read_config(struct file *filp, struct kobject *kobj, @@ -218,7 +251,9 @@ int rio_create_sysfs_dev_files(struct rio_dev *rdev) err = device_create_bin_file(&rdev->dev, &rio_config_attr); if (!err && (rdev->pef & RIO_PEF_SWITCH)) { - err = device_create_file(&rdev->dev, &dev_attr_routes); + err |= device_create_file(&rdev->dev, &dev_attr_routes); + err |= device_create_file(&rdev->dev, &dev_attr_lnext); + err |= device_create_file(&rdev->dev, &dev_attr_hopcount); if (!err && rdev->rswitch->sw_sysfs) err = rdev->rswitch->sw_sysfs(rdev, RIO_SW_SYSFS_CREATE); } @@ -241,6 +276,8 @@ void rio_remove_sysfs_dev_files(struct rio_dev *rdev) device_remove_bin_file(&rdev->dev, &rio_config_attr); if (rdev->pef & RIO_PEF_SWITCH) { device_remove_file(&rdev->dev, &dev_attr_routes); + device_remove_file(&rdev->dev, &dev_attr_lnext); + device_remove_file(&rdev->dev, &dev_attr_hopcount); if (rdev->rswitch->sw_sysfs) rdev->rswitch->sw_sysfs(rdev, RIO_SW_SYSFS_REMOVE); } -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/