From fdd33002ee45be20b317cad3e165714d14009390 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Mon, 6 Apr 2009 13:52:56 +0100 Subject: tools: Add device-path command to convert SBDF into device path. 'SBDF' format is "[SEG#:]BUS#:DEV#.FUNC#" ex) 0000:0a:1f.3 Device path format is "HID[:UID]-DEV#.FUNC#[-DEV#.FUNC#[...]]" ex) PNP0A08:0-2.0-0.0 The command can be executed as follows. # device_path 0a:1f.3 PNP0A08:0-2.0-0.0 Signed-off-by: Yuji Shimada --- Makefile | 2 +- tools/misc/Makefile | 2 +- tools/misc/device-path | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 80 insertions(+), 2 deletions(-) create mode 100644 tools/misc/device-path diff --git a/Makefile b/Makefile index 131ab3d1a3..6081f4c0cd 100644 --- a/Makefile +++ b/Makefile @@ -224,7 +224,7 @@ uninstall: rm -rf $(D)$(LIBDIR)/xen/ rm -rf $(D)/usr/lib/xen/ rm -rf $(D)/usr/local/sbin/setmask $(D)/usr/local/sbin/xen* - rm -rf $(D)/usr/sbin/xen* $(D)/usr/sbin/netfix $(D)/usr/sbin/xm + rm -rf $(D)/usr/sbin/xen* $(D)/usr/sbin/netfix $(D)/usr/sbin/xm $(D)/usr/sbin/device-path rm -rf $(D)/usr/share/doc/xen rm -rf $(D)/usr/share/xen rm -rf $(D)/usr/share/man/man1/xen* diff --git a/tools/misc/Makefile b/tools/misc/Makefile index 12c599cd75..83423e1537 100644 --- a/tools/misc/Makefile +++ b/tools/misc/Makefile @@ -22,7 +22,7 @@ INSTALL_BIN-y := xencons INSTALL_BIN-$(CONFIG_X86) += xen-detect INSTALL_BIN := $(INSTALL_BIN-y) -INSTALL_SBIN-y := netfix xm xen-bugtool xen-python-path xend xenperf xsview xenpm +INSTALL_SBIN-y := netfix xm xen-bugtool xen-python-path xend xenperf xsview xenpm device-path INSTALL_SBIN := $(INSTALL_SBIN-y) DEFAULT_PYTHON_PATH := $(shell $(XEN_ROOT)/tools/python/get-path) diff --git a/tools/misc/device-path b/tools/misc/device-path new file mode 100644 index 0000000000..b192eb2222 --- /dev/null +++ b/tools/misc/device-path @@ -0,0 +1,78 @@ +#!/usr/bin/env python +# -*- mode: python; -*- +#============================================================================ +# This library is free software; you can redistribute it and/or +# modify it under the terms of version 2.1 of the GNU Lesser General Public +# License as published by the Free Software Foundation. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +#============================================================================ +# Copyright (c) 2009, NEC Corporation. +#============================================================================ +# This script converts SBDF into device path. +# 'SBDF' format is "[SEG#:]BUS#:DEV#.FUNC#" +# ex) 0000:0a:1f.3 +# Device path format is "HID[:UID]-DEV#.FUNC#[-DEV#.FUNC#[...]]" +# ex) PNP0A08:0-2.0-0.0 +#============================================================================ + +import sys +import os + +# add fallback path for non-native python path installs if needed +sys.path.append('/usr/lib/python') +sys.path.append('/usr/lib64/python') +from xen.util.pci import * + +SYSFS_ACPI_DEVS_PATH = '/firmware/acpi/namespace/ACPI/_SB' + +def find_hid_uid(dom, b, d, f): + sb_path = find_sysfs_mnt() + SYSFS_ACPI_DEVS_PATH + obj_list = os.listdir(sb_path) + for obj in obj_list: + obj_path = sb_path + '/' + obj.strip() + '/' + if os.path.exists(obj_path + 'seg') and \ + os.path.exists(obj_path + 'bbn'): + seg = open(obj_path + 'seg').read() + bbn = open(obj_path + 'bbn').read() + if int(seg) == dom and int(bbn) == b: + hid = open(obj_path + 'hid').read() + if os.path.exists(obj_path + 'uid') is False: + path_str = hid.strip() + else: + uid = open(obj_path + 'uid').read() + path_str = hid.strip() + ':' + uid.strip() + return path_str + return None + +def make_device_path(dom, b, d, f): + dev = PciDevice(dom, b, d, f) + parent = dev.find_parent() + if parent is None: + path_str = find_hid_uid(dom, b, d, f) + path_str = path_str + '-' + hex(d).replace('0x', '') + '.' + \ + hex(f).replace('0x', '') + return path_str + (pdom, pb, pd, pf) = parent + path_str = make_device_path(pdom, pb, pd, pf) + path_str = path_str + '-' + hex(d).replace('0x', '') + '.' + \ + hex(f).replace('0x', '') + return path_str + +# main +if len(sys.argv) <> 2: + print 'Usage: device-path SBDF\n' +else: + path = os.environ['PATH'] + os.environ['PATH'] = path + ':/sbin' + ':/user/sbin' + sbdf = sys.argv[1] + (dom, b, d, f) = parse_pci_name(sbdf) + path_str = make_device_path(dom, b, d, f) + print path_str -- cgit v1.2.3